ЛИСТ ИЗ АЛЮМИНИЕВОГО СПЛАВА ДЛЯ КОНСТРУКЦИИ АВТОМОБИЛЬНОГО КУЗОВА

Изобретение относится к получению и применению листа из алюминиевого сплава для изготовления штампованной конструкции кузова или конструкционной детали кузова автомобиля, называемой еще «неокрашенный кузов», причем лист имеет предел текучести Rне ниже чем 60 МПа, и удлинение при одноосном растяжении Ag0, не ниже чем 34%.Способ получения листа из алюминиевого сплава для изготовления штампованной конструкции кузова или конструкционной детали кузова автомобиля, включает вертикальную непрерывную или полунепрерывную разливку сляба, имеющего состав, в мас.%: Si: 0,15-0,50; Fe: 0,3-0,7; Cu: 0,05-0,10; Mn: 1,0-1,5; другие элементы <0,05 каждый и <0,15 в общем, остальное алюминий, и обдирку сляба, гомогенизацию при температуре, по меньшей мере, 600°С в течение, по меньшей мере, 5 часов с последующим регулируемым охлаждением до температуры 550°С-450°С за по меньшей мере 7 часов, затем охлаждением до комнатной температуры за по меньшей мере 24 часа, нагрев до температуры 480°С-530°С с подъемом температуры ...

УСТАНОВКА НЕПРЕРЫВНОЙ РАЗЛИВКИ ДЛЯ СОРТОВЫХ ИЛИ БЛЮМОВЫХ ЗАГОТОВОК

... 1. Установка непрерывной разливки сортовых или блюмовых заготовок предпочтительно с по существу прямоугольным поперечным сечением, при этом линии периметра (51) поперечного сечения полости формы кристаллизатора (4, 11, 62) в угловых областях снабжены плавными переходами (12, 13, 23, 51, 67, 68), а за кристаллизатором (4, 11, 62) предусмотрена зона вторичного охлаждения с распыляющими форсунками (9), причем жидкая сталь через полость формы (10, 50, 63) проходит по существу вертикально, отличающаяся тем, что скругления (14, 15, 44, 76) в плавных переходах (12, 13, 23, 51, 67, 68) составляют 20% и более от длины (16) стороны поперечного сечения заготовки, причем скругления (14, 15, 44, 76) имеют характер искривления, который приближается к максимальному радиусу искривления 1/R и затем отдаляется от него, при этом в направлении движения заготовки вдоль полости формы максимальный радиус искривления 1/R плавных переходов (23, 51, 67, 68) постоянно или не постоянно снижается так, что корочка ( ...

ИЗДЕЛИЯ ИЗ АЛЮМИНИЕВО-МЕДНО-ЛИТИЕВОГО СПЛАВА С УЛУЧШЕННЫМИ УСТАЛОСТНЫМИ СВОЙСТВАМИ

Изобретение относится к прокатным изделиям из алюминиево-медно-литиевых сплавов, которые могут быть использованы для производства конструкционных элементов. Способ изготовления плиты толщиной по меньшей мере 80 мм включает получение ванны жидкого металла из сплава, содержащего, мас.%: Cu 2,0-6,0; Li 0,5-2,0; Mg 0-1,0; Ag 0-0,7; Zn 0-1,0 и по меньшей мере один элемент, выбранный из группы Zr, Mn, Cr, Sc, Hf и Ti, причем количество упомянутых элементов составляет от 0,05 до 0,20 Zr, от 0,05 до 0,8 Mn, от 0,05 до 0,3 Cr, от 0,05 до 0,3 Sc, от 0,05 до 0,5 Hf и от 0,01 до 0,15 Ti, Si ≤ 0,1; Fe ≤ 0,1; примеси ≤ 0,15 в сумме и ≤ 0,05 каждой, остальное - алюминий, при этом содержание водорода в ванне поддерживают ниже 0,4 мл/100 г, а содержание кислорода, измеренное над поверхностью расплава, ниже 0,5 об.%, полунепрерывную вертикальную разливку с использованием распределителя, выполненного из углеродной ткани, гомогенизацию сляба до или после необязательной механической обработки, горячую прокатку ...

КРИСТАЛЛИЗАТОР, ИМЕЮЩИЙ РАЗДЕЛИТЕЛЬ КРИСТАЛЛИЗАТОРА

ЛИСТ ИЗ АЛЮМИНИЕВОГО СПЛАВА ДЛЯ КОНСТРУКЦИИ АВТОМОБИЛЬНОГО КУЗОВА

УСТРОЙСТВО ВЕРТИКАЛЬНОГО НЕПРЕРЫВНОГО ЛИТЬЯ И СПОСОБ ВЕРТИКАЛЬНОГО НЕПРЕРЫВНОГО ЛИТЬЯ

СПОСОБ ИЗГОТОВЛЕНИЯ ДЛИННЫХ СЛИТКОВ (РЕЗКА В ПЕЧИ)

... 1. Способ изготовления длинных слитков, включающий: формирование металлической отливки в атмосфере инертного газа во внутренней камере печи с изложницей непрерывного литья, расположенной во внутренней камере печи; ирезку металлической отливки резаком во внутренней камере печи с образованием чернового металлического слитка во внутренней камере печи и готового металлического слитка во внутренней камере печи снизу от чернового слитка.2. Способ изготовления длинных слитков по п. 1, в котором на этапе резки создают опилки, и включающий следующий этап перемещения металлической отливки через кольцевой барьер снизу от резака, который примыкает к наружному периметру отливки для предотвращения попадания опилок через барьер.3. Способ изготовления длинных слитков по п. 2, в котором барьер предотвращает попадание опилок в отсечные клапаны.4. Способ изготовления длинных слитков по п. 2, в котором барьер предотвращает попадание опилок в подъемник слитков, который зацепляет и опускает готовый слиток.5.

КРИСТАЛЛИЗАТОР ДЛЯ НЕПРЕРЫВНОЙ РАЗЛИВКИ ЖИДКИХ МЕТАЛЛОВ, В ЧАСТНОСТИ СТАЛЕЙ, ПРИ ВЫСОКОЙ СКОРОСТИ РАЗЛИВКИ ДЛЯ ПОЛУЧЕНИЯ ПОЛИГОНАЛЬНЫХ СОРТВЫХ, ЧЕРНОВЫХ И ПРЕДНАЗНАЧЕННЫХ ДЛЯ ПРОКАТА НА БЛЮМИНГЕ ЗАГОТОВОК

... 1. Кристаллизатор для непрерывной разливки жидких металлов, в частности сталей, при высокой скорости разливки для получения полигональных сортовых, черновых и предназначенных для проката на блюминге и тому подобных заготовок (1), содержащий гильзу (2) кристаллизатора выполненную из меди или медных сплавов, поперечное сечение которой на входе (3), на стороне (4), на которой осуществляется поступление металла, является увеличенным поперечным сечением (5), по сравнению с поперечным сечением на выходе (6), на стороне, на которой осуществляется выход заготовки (7), при этом углы гильзы (2) скруглены по радиусу (8), отличающийся тем, что геометрическая внутренняя форма (9) поперечного сечения и соответствующие размеры (10) гильзы выполнены соразмерно отводимому в конкретном месте количеству тепла затвердевания от заготовки (1) в соответствии с диаграммой температуры (D) по высоте (11) гильзы кристаллизатора, при этом вначале, на стороне (4), на которой осуществляется поступление металла предусмотрено ...

КРИСТАЛЛИЗАТОР ДЛЯ НЕПРЕРЫВНОЙ РАЗЛИВКИ МЕТАЛЛА

... 1. Кристаллизатор для непрерывной разливки, предназначенный для литья непрерывной заготовки из металла, имеющий полость кристаллизатора, имеющую отверстие для заливки жидкого металла и отверстие для выпуска непрерывнолитой заготовки, при этом указанная полость кристаллизатора имеет сечение, соответствующее базовой форме непрерывнолитой заготовки, при этом указанное сечение по меньшей мере частично снабжено профилированным контуром (8, 8′, 8″, 8″), который продолжается в направлении разливки, отличающийся тем, что профилированный контур (8, 8′, 8″, 8″) выполнен в виде волнистого профиля, который имеет множество желобков (9), проходящих по существу в параллельной ориентации от заливочного отверстия к выпускному отверстию полости (2) кристаллизатора, при этом отношение внутреннего периметра полости (2) кристаллизатора к ширине (W) каждого из желобков (9) больше 30, и при этом ширина (W) желобка (9) находится в диапазоне от 1,5 мм до 30 мм.2. Кристаллизатор для непрерывной разливки по п. 1, ...

Устройство быстроразъемного крепления рамы механизма качания кристаллизатора

Verfahren zur Herstellung eines Kokillenrohrs

Verfahren zur Herstellung eines Kokillenrohrs aus Kupfer oder einer Kupferlegierung für eine Stranggießkokille, wobei ein Vorrohr auf einen die Innenform der Kokille bestimmenden Dorn durch Krafteinwirkung von außen aufgeformt und nach dem Formvorgang der Dorn wieder aus dem Kokillenrohr (1, 1a) entfernt wird, wobei die Krafteinwirkung durch Relativbewegung des Vorrohrs zu einer das Vorrohr umschließenden Matrize erfolgt, wobei die Matrize eine formgebende Struktur für eine Kühlprofilierung (6, 6a; 7, 7a) an der Außenseite (5) des Kokillenrohrs (1, 1a) aufweist, so dass die Kühlprofilierung (6, 6a; 7, 7a) mittels der Matrize beim Aufformen des Vorrohrs auf den Dorn hergestellt wird.

Stranggusskokille

Verfahren und Anlage zum Stranggießen eines metallischen Produkts

Die Erfindung betrifft Verfahren zum Stranggießen eines metallischen Produkts (11), und eine entsprechende Stranggießanlage (10). Hierbei tritt ein Strang (S) des metallischen Produkts (11) kontinuierlich aus einer Kokille (12) aus, und wird anschließend entlang einer Strangführung (14) in einer Förderrichtung (F) transportiert. Der Strang (S) wird in einem Richtbereich (I) in die horizontale Richtung umgelenkt, wobei die Randbereiche (R) des Stranges (S) innerhalb eines Minderkühlabschnitts (16) der Strangführung (14) vermindert gekühlt werden als im Vergleich zu einem horizontalen Bereich (18) der Strangführung (14), der in Förderrichtung (F) nach dem Richtbereich (I) liegt. Die Randbereiche (R) des Stranges (S) werden in einem Intensivkühlabschnitt (20) der Strangführung (14) zumindest genauso stark gekühlt wie ein mittiger Bereich (M) des Stranges (S).

Verfahren und Vorrichtung zum Stranggießen von Metall

Die Erfindung betrifft ein Verfahren zum Stranggießen von Metall, insbesondere aus Stahl, bei dem mittels einer Kokille (10) ein nach dem Austreten aus der Kokille (10) in etwa eine rechteckförmige Querschnittsfläche (A, A) aufweisender Strang (1) mit einer ersten und einer zweiten Symmetrieachse (21, 22) erzeugt wird, wobei die Querschnittsfläche (A, A) zumindest an zwei gegenüberliegend angeordneten Seiten jeweils einen zumindest im Wesentlichen ebenen Wandabschnitt (24; 24a, 25) aufweist, der symmetrisch zur ersten oder zweiten Symmetrieachse (21, 22) angeordnet ist, und wobei die Eckbereiche (28) der Querschnittsfläche (A, A) gerundet ausgebildet sind.

Vorrichtung und Verfahren zum Stützen eines Stranges beim Stranggießen

Die Erfindung betrifft eine Vorrichtung (1) und ein Verfahren zum Stützen eines Stranges (2) unmittelbar nach dem Austreten aus einer Kokille (3), umfassend eine Stützeinrichtung (4), die unterhalb der Kokille (3) angeordnet ist und einen Strangführungsbereich (5) für den Strang (2) definiert, wobei die Stützeinrichtung (4) zumindest ein umlaufendes Endlosband (6) aufweist, das in Kontakt mit dem Strang (2) bringbar und dabei in der Transportrichtung (T) des Stranges (2) bewegbar ist.

KONTINUIERLICHES GIESSVERFAHREN

Chilling of continuous casting moulds

... 725,168. Continuous casting; moulds. BOHLER & CO. AKT.-GES., GEB. Feb. 23, 1953 [Feb. 22, 1952], No. 4954/53. Class 83 (1). A method of cooling moulds for continuous casting is characterized in that baffles are provided projecting into the path of the flowing cooling agent, in a direction substantially at right angles to the direction of its flow in order to remove from the coolant the whole, or substantially the whole, of its tangential flow component while passing along the mould jacket. Cooling fluid is led in to a circular chamber surrounding the lower end of the mould 1 through an inlet orifice. A number of circular baffles 4 are arranged within the chamber at right angles to the direction of flow. The coolant is finally passed axially over the outside of the mould in an upward direction. Where two continuous casting moulds are adjacently arranged the cooling fluid from the first may be led downwardly again outside the cooling jacket and passed through an orifice in the lower end of ...

Liquid-cooled metallic chill-mould for the continuous casting of ingots of square cross section from metals of high melting point, especially iron and steel

... 729,490. Moulds. BOHLER & CO., AKT.- GES., GEB. Oct. 31, 1952 [Nov. 14, 1951], No. 27463/52. Drawings to Specification. Class 83 ( 1). A liquid-cooled metal chill mould of substantially square internal cross-section for continuous casting has the corners of the internal cross-section rounded, the radius of curvature of said corners being from one fourth to one seventh of the length of the side of the square. In a modification the straight sides of the internal cross-section are replaced by slightly convex curves of a radius lying within the range 2.5-1.5 times the length of the side of the square.

Water-cooled plate moulds for continuous casting

... 1,147,092. Continuous casting moulds. MANNESMANN A.G. 9 May, 1967 [10 May, 1966], No. 21495/67. Heading B3F. A water cooled continuous casting mould comprises a cavity forming portion constituted by side and end plates 1 and an external supporting frame, stiffening ribs 2 welded to the external surface of the plates so as to be located between the plates and the supporting frame, supporting elements 3 located between the ribs and welded thereto and which are secured at their ends to the supporting frame by screws 4. The supporting elements 3 are spaced from the plate members 1 to form cavities 6 for the passage of coolant. A screw 5 may be positioned intermediate the ends of the supporting elements to promote further rigidity of the mould structure. The interior casting surface of the mould may be straight or curved.

Improvements in or relating to chill moulds for the continuous casting of metal

At least part of a continuous casting mould (see Division B3) consists of a material containing 15-80% by volume of powdered oxide such as ZrO2 and 85-20% by volume of powdered metal such as Mo, W or both. Up to half the oxide by weight may be ThO2, HfO2 and/or TiO2. Up to 10% by weight of CaO and/or MgO may be added. Up to 50% of the metal may be Cr. 60% volume of Mo powder, 35% ZrO2 powder and 5% MgO powder is compressed to form a cylinder and presintered in hydrogen before forming a bore, final sintering, machining and etching. Part of the mould may be made from a material containing 40% volume Mo, 6.5% MgO and 53.5% ZrO2.ALSO:At least part of a continuous casting mould (see Division B3) consists of a material containing 15-80% by volume of powdered oxide such as ZrO2 and 85-20% by volume of powdered metal such as Mo, W or both. Up to half the oxide by weight may be ThO2, HfO2 and/or TiO2. Up to 10% by weight of CaO and/or MgO may be added. Up to 50% by weight of the metal may be Cr.

MOULDS FOR THE CONTINUOUS CASTING OF STEEL

OPEN-ENDED MOLD TO THE CONTINUOUS CASTING OF METAL ALLOYS

DURCHLAUFKOKILLE ZUM STRANGGIESSEN VON METALL- LEGIERUNGEN

FLUSSIGKEITSGEKUHLTE ELEKTROSCHLACKEN-KOKILLE

MOLD TO THE CONTINUOUS CASTING OF METAL

ELEKTRODENHALTER FUER ELEKTROSCHLACKENUMSCHMELZ- ANLAGEN

Einen Metallstrang partiell umgreifende Rührspule

Eine Rührspule (7) für eine Stranggießanlage weist eine Anzahl n von Segmenten (9, 9') auf, die den Metallstrang (6) jeweils über einen Teilumfang umgeben. Die Segmente (9, 9') weisen um den Metallstrang (6) herum gesehen jeweils mehrere Spulenanordnungen (11, 11'). Die Spulenanordnungen (11, 11') der Segmente (9, 9') werden im Betrieb mit Wechselströmen (I1, I2, I3, I1', I2', I3') beaufschlagt, die, bezogen auf das jeweilige Segment (9, 9'), eine einheitliche Frequenz (f, f') aufweisen. Die Wechselströme (I1, I2, I3, I1', I2', I3') sind derart gegeneinander phasenversetzt, dass sie in dem Metallstrang (6) ein jeweiliges magnetisches Wanderfeld generieren, dessen jeweilige Wanderrichtung innerhalb des jeweiligen Segments (9, 9’) einheitlich ist und in der Schnittebene verläuft. Die Anzahl an Segmenten (9, 9') kann gleich 1 sein. Alternativ wandert das von den Spulenanordnungen (11, 11') eines der Segmente (9, 9') generierte magnetische Wanderfeld gegensinnig zu dem von den Spulenanordnungen ...

Mould for producing a casting strand

Die Erfindung betrifft eine Kokille (1) zum Erzeugen eines Gießstrangs aus einer metallischen Schmelze. Die Kokille (1) umfasst zwei Kokillenlängsrahmen (3) mit einander zugewandten Rahmeninnenseiten (5) und voneinander abgewandten Rahmenaußenseiten (7), zwei Breitseiteneinsätze (9), die jeweils rahmeninnenseitig an einem Kokillenlängsrahmen (3) durch Schraubverbindungen (13), die von der Rahmenaußenseite (7) durch den Kokillenlängsrahmen (3) verlaufen, lösbar befestigbar sind, und zwei elektromagnetische Rühr- oder Bremsvorrichtungen (11), die jeweils rahmenaußenseitig an einem Kokillenlängsrahmen (3) angeordnet sind. Jede elektromagnetische Rühr- oder Bremsvorrichtung (11) weist zu jeder ihr zugewandten Schraubverbindung (13) eine Zugangsöffnung (25) auf, durch die ein Schraubwerkzeug (27) zum Lösen und Anziehen der Schraubverbindung (13) führbar ist.

STRAND CASTING MOLD

IN OR MEHRSTRANGIGE CONTINUOUS CASTING INSTALLATION

FLUSSIGKEITSGEKUHLTE ELECTROSLAG MOLD

Mold to the continuous casting

DURCHLAUFKOKILLE ZUM STRANGGIESSEN EINES STRANGS MIT KNÜPPEL- ODER VORBLOCKPROFIL

Die vorliegende Erfindung betrifft eine Durchlaufkokille (1) zum Stranggießen eines Strangs mit Knüppel- oder Vorblockprofil. Die Aufgabe der Erfindung ist es, eine Durchlaufkokille (1) zu schaffen, die eine höhere Kühlleistung zulässt und bei der die Kokille (1) eine hohe Steifigkeit aufweist. Diese Aufgabe wird durch eine Durchlaufkokille gelöst, aufweisend - ein Innenrohr (2), das einen entlang einer Längsachse (3) beidseitig offenen Formhohlraum (4) ausbildet; mehrere Kühlschlitze (5) in der äußeren Mantelfläche des Innenrohrs (2), die sich über einen Längenbereich (6) des Innerohrs (2) parallel zur Längsachse (3) erstrecken; - eine Manschette (7), die den Längenbereich (6) des Innenrohrs (2) quer zur Längsachse (3) umschließt, sodass ein Kühlfluid in einem Kühlschlitz (5) zwischen dem Innenrohr (2) und der Manschette (7) strömen kann; und ein Außenrohr (8), das das Innenrohr (2) und die Manschette (7) umschließt und fluiddicht abdichtet, sodass sich zwischen dem Innenrohr (2) und dem ...

Vorrichtung und Verfahren zum kontinuierlichen Stranggießen eines großformatigen Stahlstrangs

The invention relates to a device and method for continuous casting of a large-format steel strip (2). The problem addressed by the invention is that of representing a simple, robust and uncomplicated device for the low-cost casting of large and heavy cast strips. This problem is solved by a device comprising - a gripper carriage (6) with a clamping device (6a), a separating device (7) and a first drive (6b), wherein the clamping device (6a) can clamp the strip (2), the separating device (7) can cut the strip (2), and the first drive (6b) can drive the gripper carriage (6) in a vertical direction in order to pull the strip (2) out of the mould (1); - a holder carriage (8) with a holding device (9) and a second drive (8a), wherein the holder carriage (8) is downstream of the gripper carriage (6) in the direction of casting (3), wherein the holding device (9) can hold a lower end of the strip (2), and the second drive (8a) can drive the holder carriage (8) in a vertical direction; - a removal ...

Semi-kontinuierliches Stranggießen eines Stahlstrangs

The present invention relates to a method for the semi-continuous casting of a strand (1) of steel in a continuous casting machine and the continuous casting machine itself. The aim of the invention is to devise a method for the semi-continuous casting of a strand (1) of steel, the strand having little segregation of the center and porosity, yet being castable rapidly. For this purpose, the following method steps are used: - casting start of the continuous casting machine, liquid steel being poured into the open-ended mold (2) which is closed by a cold strand (6) and the liquid steel forming, together with the cold strand, a completely solidified strand start (1a) and subsequently a semi-solidified strand (1b); - extraction of the semi-solidified strand (1b) from the open-ended mold (2); - support and guidance of the semi-solidified strand (1b) in the strand guide (3), the semi-solidified strand (1b) being cooled by secondary cooling (4); - casting end of the continuous casting machine, ...

Semi-continuous continuous casting of a steel strand

Die vorliegende Erfindung betrifft ein Verfahren zum semi-kontinuierlichen Stranggießen eines Strangs (1) aus Stahl in einer Stranggießmaschine und die Stranggießmaschine selbst. Die Aufgabe der Erfindung ist es, ein Verfahren zum semi-kontinuierlichen Stranggießen eines Strangs (1) aus Stahl darzustellen, bei dem der Strang eine geringe Zentrumsseigerung und Porosität aufweist, und dennoch rasch vergossen werden kann. Diese Aufgabe wird durch folgende Verfahrensschritte gelöst: - Gießstart der Stranggießmaschine, wobei flüssiger Stahl in die durch einen Kaltstrang (6) verschlossene Durchlaufkokille (2) gegossen wird und der flüssige Stahl mit dem Kaltstrang einen durcherstarrten Stranganfang (1a) und nachfolgend einen teilerstarrten Strang (1b) ausbildet; - Ausziehen des teilerstarrten Strangs (1b) aus der Durchlaufkokille (2); - Stützen und Führen des teilerstarrten Strangs (1b) in der Strangführung (3), wobei der teilerstarrte Strang (1b) durch die Sekundärkühlung (4) abgekühlt wird; ...

SEGMENT MOLD

CONTINUOUS CASTING INSTALLATION

DURCHLAUFKOKILLE

Multiple strand casting mold

PROCEDURE AND PLANT CONTINUOUS CASTING OF METAL

STRAND CASTING MOLD

Strand casting mold

Procedure and device for the continuous casting of slabs

Strand casting mold

VERTICAL STRAND CASTING MOLD WITH ESSAY

A continuous casting unit, especially for steel

Molding device for continuous casting equipped with stirring device

Provided is a molding device for continuous casting equipped with a stirring device, said molding device comprising: a casting mold for receiving, from the inlet side, a melt of a conductive material in a liquid phase state and outputting, from the outlet side, a molded product in a solid phase state by cooling the melt; and a stirring device provided to the outside of the casting mold, said stirring device being provided with an electrode unit, which comprises first electrodes positioned at the top and second electrodes positioned therebelow, and a magnetic field generation device, which has a permanent magnet for applying a magnetic field to the liquid-phase melt. In the stirring device, the first electrodes are provided so as to be capable of conducting electricity to the liquid-phase melt, the second electrodes are provided so as to be capable of conducting electricity to the solid-phase cast product, and the first and second electrodes are configured so as to be capable of conducting ...

Mold Tube

Device for casting of metal

PERMANENT CHILL MOLD FOR THE CONTINUOUS CASTING OF METALS

A permanent chill mold for the continuous casting of metal, having a mold cavity (2) which has a pouring slot (3), an exit opening (4) and a casting cone (6). At least one concave bulging (7) is provided that extends in the casting direction (G), which begins at a distance (A) below a predetermined casting bath level position (5) and extends up to the exit opening (4).

CONTINUOUS CASTING MOLD AND PROCESS OF CASTING

A continuous casting process and slab plate mold for casting an endless solidified steel shell enclosing a liquid core which is formed of spaced parallel longitudinal wall plates having held therebetween spaced inwardly tapered transverse wall plates provided with specially contoured inner surfaces comprising flat sections extending inwardly from each longitudinal edge disposed perpendicular to the longitudinal wall plates and having a length about equal to the thickness of the wide walls of the casting shell at the lower end of the mold with the inner ends of said flat sections being connected by a convex section whose curvature is such that the convex section is maintained in supporting contact with said casting as the casting is moved downwardly through said mold; whereby the pressure of the casting shell on the transverse wall plates is evenly distributed so that uneven wear is avoided and the working life of the transverse wall plate substantially extended.

CONTINUOUS CASTING MOLD FOR METALS

SYSTEM AND METHOD FOR CONTROLLING THE CASTING OF A PRODUCT

Système de contrôle (100) du déroulement de la fabrication d'au moins un produit par coulée semi continue verticale, à refroidissement direct, notamment en alliage d'aluminium, dans un moule respectif fixe (41), ledit système de contrôle (100) comprenant : -Au moins un faux-fond respectif (4) configuré pour former un fond inférieur mobile du moule respectif fixe et pour porter le produit pendant la coulée, -au moins une cellule de pesée (3), sur laquelle le faux-fond respectif (4) est disposé en appui, la cellule de pesée (3) étant configurée pour prendre des mesures représentatives de la masse du produit porté par le faux-fond respectif (4) pendant la coulée, et -un support (2) de faux-fond, sur lequel la cellule de pesée (3) est liée, configuré pour abaisser le/chaque faux-fond (4) par rapport au moule respectif fixe (41), sensiblement selon une direction verticale, pendant la coulée, -Au moins une unité de traitement (21) reliée à la/chaque cellule de pesée (3), et configurée pour traiter ...

PERMANENT CHILL MOLD FOR THE CONTINUOUS CASTING OF METALS

... ²² A permanent chill mold for the continuous casting of metal has a²mold cavity which has a pouring slot, an exit opening and a²casting cone. At least one concave bulging is provided that²extends in the casting direction(G), which begins at a²distance(A) below a predetermined casting bath level position²and extends up to the exit opening.² ...

PULLING-UP-TYPE CONTINUOUS CASTING APPARATUS AND PULLING-UP-TYPE CONTINUOUS CASTING METHOD

This up-drawing continuous casting apparatus is provided with: a holding furnace (101) for holding the molten metal; a shape-regulating member (102), which is set near the surface of the molten metal being held in the holding furnace and is for regulating the cross-sectional shape of the casting being cast as a result of the molten metal passing therethrough; first nozzles (106) for blowing cooling gas on the casting formed by coagulation of the molten metal that has passed through the shape-regulating member; and second nozzles (104) for blowing gas diagonally upward toward the casting from below the position at which the first nozzles blow cooling gas on the casting.

CRYSTALLIZER FOR CONTINUOUS CASTING AND METHOD FOR ITS PRODUCTION

Crystallizer for continuous casting comprising a tubular body (11) having at least one wall (12) which defines a through longitudinal casting cavity (13) and a plurality of longitudinal grooves (14) made at least on one part of the wall (12) and open toward the outside thereof. A covering binding (15) is associated to the external surface of the wall (12) to close the longitudinal groves (14) and thus obtain corresponding cooling channels (17) configured to make a cooling liquid flow inside them.

MOULD FOR THE CONTINUOUS CASTING OF METAL AND A PROCESS FOR PRODUCING SUCH A MOULD

The invention relates to a mould (10) for the continuous casting of metal, comprising a cooled running surface (11) and a guide means (12) for molten metal comprising a refractory material, wherein the guide means (12) is disposed upstream of the running surface (11) in the direction of flow. The invention is distinguished in that the guide means (12) is radially prestressed.

CONTINUOUS CASTING APPARATUS FOR STEEL

This continuous casting device for steel is provided with: a mold for molten steel casting, which is provided with a pair of long side walls and a pair of short side walls; a submerged nozzle that discharges molten steel within this mold; and electromagnetic stirring devices, which are disposed along the outside surfaces of each of the long side walls and which stir the upper part of the molten steel that is within the mold. In a plane view of the long side walls, curved parts that are curved convexly toward the electromagnetic stirring devices are formed at least in positions facing the nozzle, and the long side walls have a uniform thickness, inclusive of the curved parts. When the inside surface of a curved part is viewed in a plane view, the shortest horizontal distance between the apex, which is the deepest recessed position, and the outer peripheral surface of the submerged nozzle is 30 - 80 mm in a range from the lower end part of the electromagnetic stirring devices up to a position ...

PROCESS FOR THE CONTINUOUS CASTING OF METAL, IN PARTICULAR STEEL FOR PRODUCING BILLETS AND BLOOMS

A process for the continuous casting of the metal is disclosed, in particular of steel, for producing billets and blooms with a polygonal or approximately round cross-section. In order to improve chilling within the mould, thus achieving a better casting quality, and to optimize the casting process in the case of various operations, steels is introduced in a mould (3) with a cross-section at the pouring side that has sections (2) with bulges (9) distributed around the circumference of the mould cavity (6). The bulging skin that is created in the mould (3) is formed along at least a partial length of the mould (3). The extent of bulge elimination (9) is determined by setting a corresponding level of the bath within said partial length of the mould (3) as a function of the casting parameters.

MOULD FOR CONTINUOUS CASTING OF METALS, PARTICULARLY STEEL

In the case of moulds for continuous casting of polygonal billet cross-sections, more particularly with a square or hexagonal cross-section, the mould cavity (6) can have one shape at the pouring-in end (4) and a different shape at the billet outlet end (5). The aim, by controlled shaping of the billet cross-section inside the mould, is to improve the cooling of the crust of the billet, in order to improve the quality of the billet and also increase the speed of casting. To this end, it is proposed to provide a cross-sectional enlargement (7) in the form of a bulge (9) in each peripheral portion of the mould cavity (6), and the width (10) of the bulge (9) in the direction (11) of advance of the billet, at least along a part (12) of the length of the mould cavity (6), decreases in such a way that the billet cross-section changes shape in transit through the part length (12) of the mould cavity (6).

FACILITY AND METHOD FOR THE CONTINUOUS CASTING OF METALS ANDITS INSTALLATION

L'installation de coulée continue comporte une ingotière dont les parois (1) sont formées par des parois métalliques refroidies (2) surmontées par une rehausse (3) en matériau thermiquement isolant. Des orifices d'injection d'un gaz sous pr ession, tels qu'une fente (10), débouchent dans la lingotière au moins à l'interface entre la rehausse et la paroi métallique. L'installation comprend des moyens (13 à 17), reliés auxdits orifices, de fourniture d'un gaz ou mélange gazeux ayant une capacité d'expansion thermique a justable en fonction de la composition de l'alliage métallique coulé et des conditions de coulée. Le réglage de la capacité d'expans ion thermique du gaz injecté permet d'ajuster la densité du flux thermique extrait du métal coulé dans la zone où il commence à se solidifie r. Application notamment à la coulée continue de l'acier.

POURING TABLE DIE BLOCK POSITIONING DEVICE FOR AN UPHILL VERTICAL CONTINUOUS CASTING MACHINE

L'invention concerne un dispositif de positionnement, par rapport à un axe vertical (X-X) d'extraction, d'un bloc-filière (5) d'une table de coulée (1) d'une machine de coulée continue verticale ascendante de tubes (T), machine dont le bloc-filière (5) est alimenté, au moyen d'un dispositif (3) de fourniture de fonte liquide, et est en appui sur celui-ci. Ce dispositif de positionnement comprend un support escamotable (15) dans lequel est fixé le bloc-filière (5), un châssis déplaçable (6) sur lequel est posé le dispositi f (3) de fourniture de fonte liquide, des moyens (18, 19) de positionnement relatif du support (15) par rapport au châssis (6), des organes de blocage (21, 25) destinés à bloquer la position relative entre le support (15) et le châssis (6) de telle sorte que le support (15), le châssis (6) et le dispositif (3) de fourniture de fonte liquide forment un ensemble monobloc, un socle (40) disposé de façon prédéterminée par rapport à l'axe vertical (X-X) d'extraction et destiné ...

INGOT MOULD HEAD FOR CONTINUOUS VERTICAL LOAD CASTING OF ELONGATED FLAT METAL PRODUCTS

The invention concerns an ingot mould comprising a feeder (23) made of heat insulating refractory material mounted above the crytalliser made of cooled copper (7) intemally aligned therewith to define a passage for the cast metal, and set between the two an insert (24) in dense refractory material with mechanical resistance properties. The invention is characterised in that, said insert (24) is made up of bars, each bar (29) being formed by a rigid assembly of juxtaposed and aligned contiguous elements (30) maintained close together by tightening means integral with the bar, such as a through tie-rod (31) associated with compressing plates (33), and means for positioning and aligning the bar on the crystalliser (7) are provided by a battery of spring thrusters (38) associated with a positioning stop (39) on the crystalliser against which the bar (29) is urged to rest.

INGOT MOULD HEAD FOR CONTINUOUS VERTICAL LOAD CASTING OF ELONGATED FLAT METAL PRODUCTS

Dans ce type de lingotière, une rehausse (23) en matériau réfractaire thermoisolant surmonte le cristallisoir en cuivre refroidi (7) en étant aligné intérieurement avec lui pour définir un passage au métal coulé, avec interposition entre les deux d'un insert (24) en matériau réfractaire dense ayant des propriétés de résistance mécanique. Selon l'invention, cet insert (24) est constitué de barreaux, chaque barreau (29) étant formé par un assemblage rigide d'éléments jointifs juxtaposés et alignés (30), maintenus serrés entre eux par un moyen de serrage intégré au barreau, tel qu'un tirant traversier (31) associés à des patins de compression (33), et des moyens de positionnement et d'alignement du barreau sur le cristallisoir (7) sont prévus et constitués par une batterie de poussoirs à ressorts (38) associée à une butée de positionnement (39) sur le cristallisoir contre laquelle vient s'appuyer le barreau (29).

METHOD AND DEVICE FOR CONTINUOUS METAL CHARGE CASTING

Il s'agit du réglage de la répartition linéaire du débit d'un fluide de cisaillage injecté, en cours de coulée, par une fente (20) ménagée à l'interface corps métallique refroidi (1) -rehausse réfractaire (14) d'une lingotière de coulée continue en charge des métaux et débouchant selon le pourtour intérieur de ladite lingotière, celle-ci étant pourvue de moyens de serrage pour régler l'épaisseur de la fente. Selon l'invention, ce réglage consiste à injecter "à froid" à travers ladite fente (20) un fluide inflammable de réglage, que l'on enflamme à sa sortie de la fente, et en ce que l'on intervient sur lesdits moyens de serrage (25, 26, 28, 29) de manière telle que la hauteur des flammes (39) sortant de la fente (20) soit sensiblement constante selon tout le périmètre intérieur de la lingotière. L'invention procure l'avantage d'un réglage précis et durable du débit injecté sans devoir être astreint au réglage de l'épaisseur de la fente d'injection. Application à la coulée continue en charge ...

Verfahren und Einrichtung zum kontinuierlichen Giessen von Metallblechen.

Giessform zum Stranggiessen von Metallen

Einrichtung zum kontinuierlichen Giessen von Metallstangen.

Stranggiesskokille.

Kokille, die aus mehreren Teilen zusammengesetzt ist.

Giesseinrichtung mit einer Kokille.

Kokille für das Stranggiessen von Metallen

Lingotière pour la coulée continue de métaux

Verfahren und Vorrichtung zum Stranggiessen von Knüppeln

Wassergekühlte Stranggiesskokille

Installation de coulée continue

Giessvorrichtung mit einer Rütteleinrichtung zum Giessen von Metallsträngen

Kokille für Vakuumschmelzanlagen, vorzugsweise für Elektronenstrahlschmelzöfen

Procédé de coulée en continu

Stranggusskokille zum Stranggiessen von hochschmelzenden Metallen

Stranggiesskokille für das Stranggiessen von hochschmelzenden Metallen

Röntgenstrahlenmikroskop

Warmfester Werkstoff

Gussform

Verfahren zum Stranggiessen und Stranggusskokille hiefür

Kühlvorrichtung für Stranggusskokillen

Verfahren zum Kühlen einer Kokille beim Stranggiessen

Flüssigkeitsgekühlte Plattenkokille für das Stranggiessen hochschmelzender Metalle

Verfahren und Giessform zum Stranggiessen

Stranggusskokille für Rohrprofile

Stranggiesskokille zum Giessen von Metall

PROCEDURE FOR THE STEALING RANK POURING.

System and method for casting and rolling metal

The invention essentially relates to a device and a method for casting and rolling metal, wherein at least one first and one second casting line for casting slabs and a rolling train for rolling the casted slabs are provided. The first casting line is designed as a horizontal thin-slab casting system ( 1 ) which comprises at least one dispensing vessel ( 5 ) for a melt and a conveyor belt ( 6 ) running horizontally downstream of the at least one dispensing vessel ( 5 ) in the casting direction. The second casting system is likewise designed as a horizontal thin-slab casting system ( 1 ) and/or as a vertical thin-slab casting system ( 2 ), which comprises at least one mold ( 4 ) for vertically casting slabs and a bending and straightening device ( 7 ) for bending and straightening the vertically casted slabs into a horizontal position. A rolling train ( 11 ) for rolling the casted slabs lies downstream of the at least two casting lines, and the at least two casting lines are designed such that the slabs, each of which is cast using one of the at least two casting lines, can be conveyed to the rolling train ( 11 ).

Electromagnetic casting method and apparatus for polycrystalline silicon

Disclosed is an electromagnetic casting method of polycrystalline silicon which is characterized in that polycrystalline silicon is continuously cast by charging silicon raw materials into a bottomless cold mold, melting the silicon raw materials using electromagnetic induction heating, and pulling down the molten silicon to solidify it, wherein the depth of solid-liquid interface before the start of the final solidification process is decreased by reducing a pull down rate of ingot in a final phase of steady-state casting. By adopting the method, the region of precipitation of foreign substances in the finally solidified portion of ingot can be reduced and cracking generation can be prevented upon production of a polycrystalline silicon as a substrate material for a solar cell.

Molding device for continuous casting equipped with agitator

There is provided a molding device for continuous casting equipped with an agitator that reduces the amount of generated heat, is easy to carry out maintenance, is inexpensive, and is easy to use in practice. The molding device for continuous casting equipped with an agitator of the invention receives liquid-phase melt of a conductive material, and a solid-phase cast product is taken out from the molding device through the cooling of the melt. The molding device includes a casting mold and an agitator provided so as to correspond to the casting mold. The casting mold includes a casting space that includes an inlet and an outlet at a central portion of a substantially cylindrical side wall, and a magnetic field generation device receiving chamber that is formed in the side wall and is positioned outside the casting space. The casting mold receives the liquid-phase melt from the inlet into the casting space and discharges the solid-phase cast product from the outlet through the cooling in the casting space. The agitator includes a magnetic field generation device having an electrode unit that includes first and second electrodes supplying current to at least the liquid-phase melt present in the casting space, and a permanent magnet that applies a magnetic field to the liquid-phase melt. The magnetic field generation device is received in the magnetic field generation device receiving chamber of the casting mold, generates magnetic lines of force toward a center in a lateral direction, makes the magnetic lines of force pass through a part of the side wall of the casting mold and reach the casting space, and applies lateral magnetic lines of force, which cross the current, to the melt.

PERMANENT MAGNET-TYPE MOLTEN METAL STIRRING DEVICE AND MELTING FURNACE AND CONTINUOUS CASTING APPARATUS INCLUDING THE SAME

A permanent magnet-type molten metal stirring device includes: a support body that can suppress heat transfer from molten metal; a magnetic field unit provided above the support body and including a permanent magnet allowing magnetic force lines to vertically extend in the molten metal; and a drive unit provided below the support body and driving the molten metal with an electromagnetic force generated by the magnetic force lines and current allowed to flow through the molten metal by the drive unit. The drive unit includes: a cylindrical drive main body mounted on a lower portion of the support body and including a passage formed therein and laterally extending in a longitudinal direction, and a pair of electrodes provided at positions opposed to each other along a width direction via the passage, the pair of electrodes allowing current intersecting the magnetic lines of force in the molten metal. 1. A permanent magnet-type molten metal stirring device comprising:a support body that is capable of suppressing transfer of heat from molten metal;a magnetic field unit that is provided above the support body and includes a permanent magnet allowing magnetic lines of force to vertically extend in the molten metal; anda drive unit that is provided below the support body and drives the molten metal with an electromagnetic force generated by the magnetic lines of force generated from the permanent magnet and current allowed to flow through the molten metal by the drive unit, a cylindrical drive unit main body that is mounted on a lower portion of the support body and includes a passage formed therein and laterally extending in a longitudinal direction, and', 'a pair of electrodes that are provided at positions where the pair of electrodes being opposed each other along a width direction via the passage, the pair of electrodes being exposed to the passage, and the pair of electrodes allowing current in the molten metal, the current intersecting the magnetic lines of force., ...

METHOD FOR CONTINUOUSLY CASTING STEEL

A primary object of the present invention is to provide a technique of avoiding occurrence of surface defects caused by an electromagnetic brake while checking internal defects with this electromagnetic brake, so that cleanliness of a cast steel can be improved compared with prior arts, and the present invention provides a method for continuously casting steel, the method comprising supplying molten steel into a mold while applying an electromagnetic brake to an outlet flow discharged from an outlet port of an immersion nozzle, wherein magnetic flux density (B) of the electromagnetic brake is within a range of the following (Formula 1): 2. The method for continuously casting steel according to claim 1 , wherein a rectangular mold that has short sides and long sides on a horizontal cross-sectional shape is used as the mold.3. The method for continuously casting steel according to claim 2 , wherein the flow velocity v of the molten steel is 0.685 m/s to 0.799 m/s.4. The method for continuously casting steel according to claim 1 , whereina funnel mold with short sides and long sides on a horizontal cross-section, in which a distance between the long sides facing each other in the mold at a middle of each long side is enlarged than a distance between the long sides at ends of the long sides, is used as the mold.5. The method for continuously casting steel according to claim 4 , wherein D/Dis 1.16 to 1.24.6. The method for continuously casting steel according to claim 4 , wherein H/His 0.161 to 0.327.7. The method for continuously casting steel according to claim 4 , wherein the flow velocity v of the molten steel is 0.441 m/s to 1.256 m/s.8. The method for continuously casting steel according to claim 4 , wherein the outlet flow angle θ of the molten steel is −45° to −5°. The present invention relates to a method for continuously casting steel.Continuous casting of steel is carried out while molten metal in a tundish is supplied into a mold of continuous casting ...

METHOD FOR CONTINUOUSLY CASTING SLAB

To provide a continuous casting method according to which a slab difficult for surface cracking to appear can be manufactured, in a first water cooling step, the slab is cooled so that only a surface temperature of corner parts is below Arpoint, in a first recuperation step, the slab is recuperated so that the surface temperature of all the slab including the corner parts is no less than the Arpoint, in a second water cooing step, the slab is cooled so that the surface temperature of all the slab including the corner parts is below the Arpoint, and in a second recuperation step, the slab is recuperated so that the surface temperature of only a portion of the slab other than the corner parts is no less than the Arpoint. 1. A method for continuously casting a slab using a curved type or vertical bending type continuous casting machine , the method comprising:the step of cooling the slab just beneath a mold in a secondary cooling zone, the slab being withdrawn from the mold, the step further comprising: a first water cooling step, a first recuperation step that follows the first water cooling step, a second water cooling step that follows the first recuperation step, and a second recuperation step that follows the second water cooling step,{'sub': 3', '3, 'wherein the first water cooling step is a step of cooling the slab of which a surface temperature is no less than 1000° C., by supplying cooling water to wide surfaces of the slab, including that only a surface temperature of a corner part is below Arpoint, and a surface temperature of a portion of the slab other than the corner part is kept no less than Arpoint, the corner part being a region within 20 mm from an apex and edges of the slab,'}{'sub': '3', 'the first recuperation step is a step of recuperating the slab including that the surface temperature of all the slab including the corner part is no less than the Arpoint,'}{'sub': 3', '3, 'the second water cooing step is a step of cooling the slab of which the ...

CONTINUOUS CASTING DEVICE FOR SLAB COMPRISING TITANIUM OR TITANIUM ALLOY

In the present invention the torch movement period is 20-40 seconds, with the torch movement period being the time required to move plasma torches (which heat the surface of molten metal in the casting mold) one time. The average heat input amount at multiple sites, which are obtained by dividing the initial solidification portion (which is where the molten metal makes contact with the casting mold and first solidifies) into multiple sites in the circumferential direction of the casting mold, is 1.0-2.0 MW/m. The molten metal advection time, which is the time required for electromagnetically stirred molten metal to travel the length of the torch heating region of the surface of the molten metal in the lengthwise direction of the casting mold, is 3.5 seconds or less. 1a plasma torch for heating a melt surface of a molten metal in a bottomless mold while moving over the melt surface of the molten metal in a predetermined moving pattern, the plasma torch being disposed above the bottomless mold;an electromagnetic stirring device for stirring at least the melt surface of the molten metal by electromagnetic stirring, the electromagnetic stirring device being disposed on a side of the bottomless mold; anda controller, wherein the controller controls the plasma torch and the electromagnetic stirring device;the method comprising:injecting molten metal prepared by melting titanium or a titanium alloy into the bottomless mold having a rectangular cross section;withdrawing the molten metal downward while being solidified; and a torch moving cycle T of 20 sec or more and 40 sec or less, the torch moving cycle T being a time required for the plasma torch to complete a single round of movement in the predetermined moving pattern and calculated by T=4W/(A·Vt), where 2W represents a length of a long side of the slab in a horizontal cross section, A represents the number of the plasma torch, and Vt represents an average moving speed of the plasma torch while moving in the ...

Flow Speed Control In Continuous Casting

An arrangement for controlling flow speed in a mold for continuous casting of metal includes: at least two first front cores with associated first magnetic coils arranged on one side of the mold; at least two second front cores with associated second magnetic coils arranged on an opposite side of the mold in substantial alignment with the first front cores; an external magnetic loop connecting the second front cores to the first front cores, to allow a one-directional magnetic flux to pass through the mold from the first front cores to the second front cores or vice versa; and a control interface enabling independent control of two subsets of the first magnetic coils. 119-. (canceled)20. An arrangement for controlling flow speed in a mold for continuous casting of metal , comprising:at least two first front cores with associated first magnetic coils arranged on one side of the mold;at least two second front cores with associated second magnetic coils arranged on an opposite side of the mold in substantial alignment with the first front cores;an external magnetic loop connecting the second front cores to the first front cores, to allow a one-directional magnetic flux to pass through the mold from the first front cores to the second front cores or vice versa; anda control interface enabling independent control of two subsets of the first magnetic coils,characterized in that the front cores are provided with reconfigurable flux-shaping elements for allowing a spatially non-uniform magnetic flux to pass through the mold.21. The arrangement of claim 20 , wherein the control interface enables independent control of two subsets of the second magnetic coils.22. The arrangement of claim 20 , wherein said subsets of the first or second magnetic coils are differently positioned with respect to a lateral direction of the mold.23. The arrangement of claim 20 , wherein each of said subsets of the first or second magnetic coils includes one or more magnetic coils.24. The ...

TOOLING FOR PRODUCING A METAL PRODUCT BY FEED CASTING

A tooling for producing a metal product by feed casting, comprising a mold comprising a preheater, an ingot mold (), a movable bottom that moves in a main direction X and a transition ring interposed between the preheater and the ingot mold (). The tooling has a clamping ring () transmitting a clamping force (F) to the transition ring () oriented towards the ingot mold (), a holding mechanism that positively locks the clamping ring (), and an axial relief mechanism configured so as to vary between an inactive state in which the holding mechanism exerts said holding force (F) on the clamping ring () such that the clamping ring () exerts said clamping force (F) on the transition ring () and an active state in which the axial relief mechanism resists the action applied by the holding mechanism on the clamping ring in the inactive state. 1. A tooling for manufacturing a metal product by hot top casting , including a mold comprising:a hot top through which the metal in liquid state is poured,{'b': '10', 'an ingot mold () in which solidification of the metal occurs, equipped with a support with integrated cooling,'}{'b': '10', 'a movable base moving in a main direction, parallel to the main axis of the ingot mold (),'}{'b': 11', '10, 'a transition ring () interposed between the hot top and the ingot mold (),'}{'b': 12', '1', '11', '10', '12', '2', '12', '11', '2', '12', '12', '1', '11', '12', '12', '12', '11', '10, 'the tooling being characterized in that it comprises a clamping ring () able to transmit a clamping force (F) to the transition ring () oriented towards the ingot mold () in the main direction (X), a holding mechanism ensuring positive locking of the clamping ring () and able to exert a holding force (F) on the clamping ring () directed towards the transition ring () along the main direction (X), and an axial load-shedding mechanism configured to vary between an inactive state in which the holding mechanism exerts said holding force (F) on the clamping ring () ...

METHOD AND DEVICE FOR PRODUCING FOUNDRY INGOTS FROM METAL

The invention relates to a method for producing foundry ingots () from metal, in particular from steel, having a cross-sectional area of more than 0.1 m, wherein liquid metal () is discharged into an ingot mold () open at the bottom either directly form a casting ladle () or via a tundish (), and wherein, by a drawing piston (), which is vertically movable in the direction of a longitudinal axis () of the foundry ingot () and on which the foundry ingot () is at least indirectly arranged, the at least partially solidified foundry ingot () is drawn from the ingot mold () in the direction of the longitudinal axis (). 11211121511551285115. A method for producing ingots () from metal having a cross-sectional area of more than 0.1 m , liquid metal () being discharged either directly from a casting ladle () or via a tundish () into an ingot mold () open at the bottom , the at least partially solidified ingot () being withdrawn from the ingot mold () in the direction of a longitudinal axis () of the ingot () using a withdrawing tool () which is vertically movable in the direction of the longitudinal axis () and on which the ingot () is at least indirectly disposed , and the ingot () being at least temporarily rotated about its longitudinal axis () , at least during the casting process ,wherein{'b': 1', '25', '28', '1, 'the rotation of the ingot () is realized via a pedestal element () or a withdrawing tool () on which the ingot () stands with its facing side.'}215. The method according to claim 1 , wherein the ingot () is continuously rotated in a direction about the longitudinal axis ().315. The method according to claim 1 , wherein the ingot () is rotated in an oscillating manner about the longitudinal axis ().4151. The method according to claim 1 , wherein the rotational angular velocity of the ingot () about the longitudinal axis () is varied during the rotation of the ingot ().51155. The method according to claim 1 , wherein the ingot () is discontinuously moved during ...

Continuous casting method for ingots obtained from titanium or titanium alloy

For continuously casting an ingot of titanium or titanium alloy, molten titanium or titanium alloy is poured into a top opening of a bottomless mold with a circular cross-sectional shape, the solidified molten metal in the mold is pulled downward from the mold, a plurality of plasma torches disposed on an upper side of molten metal in the mold such that their centers are located directly vertically above the molten metal in the mold, are operated to generate plasma arcs that heat the molten metal in the mold, and the plasma torches are moved in a horizontal direction above a melt surface of the molten metal in the mold, along a trajectory located directly vertically above the molten metal in the mold, while keeping a mutual distance between the respective plasma torches such that the plasma torches do not interfere with each other.

Mold for continuous casting

A mold is provided for the continuous casting of a liquid metal. The mold includes at least one wall ( 21 ) that defines at least part of a casting cavity ( 22 ) in which to cast the liquid metal. Cooling devices ( 23 ) are configured to cool the wall ( 21 ) with a cooling liquid by delivering at least a jet (G) of the cooling liquid in a delivery direction incident against at least one portions of an interface surface of the wall ( 21 ).

A DEVICE FOR THE SOFT REDUCTION OF ROUND-SECTION METAL PRODUCTS

A soft reduction device () of a round-section metal product, having liquid or partially liquid core, for reducing the thickness of said metal product coming from a continuous casting machine, the device comprising at least two soft reduction units (); in which said at least two soft reduction units () are arranged in series; in which each soft reduction unit () is provided with a group of only three rolls arranged at 120° from one another; and wherein the group of three rolls () of one soft reduction unit is offset by a predetermined angle with respect to the group of three rolls () of an adjacent soft reduction unit. 1. A soft reduction device of a casting product made of metal with a round-section having liquid or partially liquid core , for reducing a thickness of said casting product , coming from a continuous casting machine , while maintaining the round section , the device comprising at least two soft reduction units ,wherein said at least two soft reduction units are arranged in series,wherein each soft reduction unit is provided with a group of only three rolls arranged at 120° from one another,and wherein the group of three rolls of one soft reduction unit is offset by a predetermined angle with respect to the group of three rolls of an adjacent soft reduction unit.2. The device according to claim 1 , wherein said predetermined angle is 180°.3. The device according to claim 1 , wherein there are provided only two soft reduction units and the group of three rolls of a first soft reduction unit is offset by 180° with respect to the group of three rolls of a second soft reduction unit claim 1 , which is subsequent and adjacent to the first soft reduction unit.4. The device according to claim 1 , wherein there are provided from three to eight soft reduction units.5. The device according to claim 1 , wherein there are provided four soft reduction units and the group of three rolls of a soft reduction unit is offset by 180° with respect to the group of three ...

METHOD FOR PRODUCING PLATINUM GROUP METAL OR PLATINUM GROUP-BASED ALLOY

An object of the present invention is to provide a molten ingot of a platinum group metal or a platinum group-based alloy having a high material yield by suppressing a scattering phenomenon during heating and melting in a method for producing a platinum group metal or a platinum group-based alloy. The method for producing a platinum group metal or a platinum group-based alloy according to the present invention includes a preparing step of weighing a raw material that is partially or entirely of powder and, when the alloy is to be produced, mixing the weighed raw material to obtain a powder mixture, a molding step of molding and solidifying the prepared raw material to obtain molded bodies, a sintering step of sintering the molded bodies to obtain a sintered body, a melting step of melting the sintered body to produce a molten ingot, and a deformation processing step of processing the molten ingot. In the sintering step, the molded bodies are sintered in a stacked state to produce a sintered body as a joined body. 1. A method for producing a platinum group metal or a platinum group-based alloy , comprising:a preparing step of weighing a raw material that is partially or entirely of powder and, when the alloy is to be produced, mixing the weighed raw material to obtain a powder mixture;a molding step of molding and solidifying the prepared raw material to obtain molded bodies;a sintering step of sintering the molded bodies to obtain a sintered body;a melting step of melting the sintered body to produce a molten ingot; anda deformation processing step of processing the molten ingot,wherein, in the sintering step, the molded bodies are sintered in a stacked state to produce the sintered body as a joined body.2. A method for producing a platinum group metal or a platinum group-based alloy according to claim 1 , wherein claim 1 , in the molding step claim 1 , the molded bodies are substantially in the shape of a rectangular parallelepiped.3. A method for producing a ...

METHOD FOR PRODUCING PLATINUM GROUP ALLOY

Provided is a method for producing a platinum group-based alloy capable of producing a sound molten ingot of a platinum group-based alloy in a large amount. The method for producing a platinum group-based alloy includes a molten ingot production step of a continuous casting system using a plasma arc melting furnace configured to form a plasma arc column between an electrode torch which is arranged in an upper part of a vacuum chamber and a water cooled copper crucible which is arranged in a lower part of the chamber and has a cavity having a sectional area S, the molten ingot production step including: inserting and melting an end part of a raw material bar including a platinum group-based alloy in the plasma arc column to cause the raw material bar to fall in drops on a base material in the water cooled copper crucible, to thereby form a molten pool; and solidifying a bottom part of the molten pool while maintaining a constant liquid level height of the molten pool by pulling down the base material, the molten ingot having a horizontal sectional area S (mm) and a length L (mm) satisfying the following relationship: S≧S>500, L>4√(S/π), an internal pressure of the chamber during melting being 0.8 atm or more, a pulling down speed of the base material being 10 mm/min or less. 11. A method for producing a platinum group-based alloy , the method comprising a molten ingot production step of a continuous casting system using a plasma arc melting furnace configured to form a plasma arc column between an electrode torch which is arranged in an upper part of a vacuum chamber and a water cooled copper crucible which is arranged in a lower part of the chamber and has a cavity having a sectional area S ,the molten ingot production step comprising:inserting and melting an end part of a raw material bar comprising a platinum group-based alloy in the plasma arc column to cause the raw material bar to fall in drops on a base material in the water cooled copper crucible, to thereby ...

MOLD FOR CONTINUOUS CASTING OF TITANIUM OR TITANIUM ALLOY INGOT, AND CONTINUOUS CASTING DEVICE PROVIDED WITH SAME

A mold () has a cooling means () for having the thermal flux at four corner sections () be smaller than the thermal flux at four face sections (). The cooling means () has first channels () which are each embedded in the four corner sections () respectively and which channel cooling water, and second channels () which are each embedded in the four face sections () respectively and which channel cooling water. The distance from the inner peripheral surface of the mold () to the first channels () is greater than the distance from the inner peripheral surface of the mold () to the second channels (). 1. A mold for continuous casting of a titanium or titanium alloy ingot , the mold being used for continuously casting the titanium or titanium alloy ingot and being rectangular in cross-section but not having a bottom section , into which molten metal of titanium or titanium alloy is poured , wherein the mold has a cooling means for making a thermal flux at four corner sections of the mold smaller than a thermal flux at four face sections interposed between the corner sections.2. The mold for continuous casting of a titanium or titanium alloy ingot according to claim 1 , wherein the cooling means has flow channels embedded at the four face sections of the mold respectively claim 1 , through which a cooling fluid flows.3. The mold for continuous casting of a titanium or titanium alloy ingot according to claim 1 , wherein the cooling means has slow-cooling layers embedded at the four corner sections of the mold respectively and having smaller thermal conductivity than the mold.4. The mold for continuous casting of a titanium or titanium alloy ingot according to claim 1 ,wherein the cooling means has:first flow channels embedded at the four corner sections of the mold respectively, through which a cooling fluid flows, andsecond flow channels embedded at the four face sections of the mold respectively, through which the cooling fluid flows; anda distance from an inner ...

SEMI-CONTINUOUS CASTING OF AN INGOT WITH COMPRESSION OF THE METAL DURING SOLIDIFICATION

The invention relates to a method for manufacturing a metal ingot by continuous casting, comprising the following steps: S melting the metal, S transferring the liquid metal () by pouring it into a crucible (), S moving the base plate () of the crucible (), S progressive solidification of the liquid metal () from the base plate () of the crucible (), and S during the step S of moving the base plate (), applying a compression force to the metal () which is present between the base plate () and the side wall (), the compression force being applied along a second axis (X) parallel to the first axis (X) so as to deform the metal and to obtain an ingot () which has a smaller width (L).

PULLING-UP-TYPE CONTINUOUS CASTING APPARATUS AND PULLING-UP-TYPE CONTINUOUS CASTING METHOD

A pulling-up-type continuous casting apparatus according to an aspect of the present invention includes a holding furnace that holds molten metal, a shape defining member disposed near a molten-metal surface of the molten metal held in the holding furnace, the shape defining member being configured to define a cross-sectional shape of a cast-metal article to be cast as the molten metal passes through the shape defining member, a first nozzle that blows a cooling gas on the cast-metal article, the cast-metal article being formed as the molten metal that has passed through the shape defining member solidifies, and a second nozzle that blows a gas toward the cast-metal article in an obliquely upward direction from below a place on the cast-metal article on which the cooling gas is blown from the first nozzle. 1. A pulling-up-type continuous casting apparatus comprising:a holding furnace that holds molten metal;a shape defining member disposed near a molten-metal surface of the molten metal held in the holding furnace, the shape defining member being configured to define a cross-sectional shape of a cast-metal article to be cast as the molten metal passes through the shape defining member;a first nozzle that blows a cooling gas on the cast-metal article, the cast-metal article being formed as the molten metal that has passed through the shape defining member solidifies; anda second nozzle that blows a gas toward the cast-metal article in an obliquely upward direction from below a place on the cast-metal article on which the cooling gas is blown from the first nozzle.2. The pulling-up-type continuous casting apparatus according to claim 1 , wherein the second nozzle is fixed on the shape defining member.3. The pulling-up-type continuous casting apparatus according to claim 1 , wherein the second nozzle is formed inside the shape defining member.4. The pulling-up-type continuous casting apparatus according to claim 3 , further comprising a projection disposed on the shape ...

METHOD FOR CONTINUOUS-CASTING SLAB

A primary object of this invention is to provide a continuous casting method by which a slab of excellent internal quality can be obtained even if the casting speed is changed. In this invention, upon continuous casting with two pairs of the reduction rolls arranged along a casting direction and support rolls arranged between the reduction rolls, when a casting speed is reduced compared to a state where combination of reduction with reduction rolls at a first stage on an unsolidified portion of the slab and reduction with reduction rolls at a second stage on a solidified portion thereof is employed, the combination is switched to combination of reduction with the reduction rolls at the first stage on a portion of the slab at an end of solidification and the reduction with the reduction rolls at the second stage on the solidified portion thereof. 1. A method for continuous-casting a slab while reduction is carried out on the slab using a continuous casting machine with two stages of reduction rolls , each of the two stages consisting of a pair of the reduction rolls , and being arranged along a casting direction , a diameter of each of the reduction rolls being 1.2 to 2.0 times as much as thickness of the slab just before reduction with corresponding reduction rolls , the continuous casting machine including the reduction rolls and support rolls , the support rolls being arranged between said two stages of the reduction rolls , whereinwhen a casting speed is reduced compared to a state where the slab is cast at a constant speed under combination of reduction with reduction rolls at a first stage on an unsolidified portion of the slab, a solid-phase ratio of the unsolidified portion at a center of the slab in a thickness direction being less than 0.8, and reduction with reduction rolls at a second stage on a solidified portion of the slab, a solid-phase ratio of the solidified portion at the center of the slab in the thickness direction being 1.0, the reduction rolls ...

ROLLING INGOT MOULD FOR THE CONTINUOUS CASTING OF ALUMINIUM AND ALUMINIUM ALLOYS

The invention relates to a cooling system for a mould, in particular a mould for vertical continuous casting, comprising at least one cooling unit (), wherein the mould has a running surface () with an inner side and an outer side and the inner side of the running surface () limits a continuous casting during operation, wherein the cooling unit () is designed to be moveably arranged on the mould and the cooling unit () has an adjusting element (), wherein the cooling unit () is arranged on the mould in such a way that a gap () is formed between the cooling unit () and the outer side of the running surface () and the width of the gap () can be adjusted by the adjusting element (). 1. Cooling system for a mould , in particular , a mould for continuous casting , comprising at least one cooling unit , wherein the mould has a running surface with an inner side and an outer side , and the inner side of the running surface limits a continuous casting during operation ,whereinthe cooling unit is designed to be moveably arranged on the mould and the cooling unit has an adjusting element, wherein the cooling unit is arranged on the mould in such a way that a gap is formed between the cooling unit and the outer side of the running surface and the width of the gap can be adjusted by the adjusting element.2. A cooling system according to claim 1 ,whereinthe cooling unit comprises at least one means for cooling arranged on the side of the cooling unit facing the outer side of the running surface.3. A cooling system according to claim 2 ,whereinthe means for cooling comprises a primary means for cooling directed onto the outer side of the assigned running surface and comprises a secondary means for cooling directed onto a region subordinate to the mould outlet in the casting direction.4. A cooling system according to claim 2 ,whereinthe means for cooling comprises at least one oblong opening, which at least partially extends along a longitudinal axis of the cooling unit, and/or ...

METHOD AND SYSTEM FOR SENSING INGOT POSITION IN REDUCED CROSS-SECTIONAL AREA MOLDS

A system and method for sensing the position of an ingot within a segmented mold of a vacuum metallurgical system. An inductive sensory system measures the variations in current between a power source and load of an induction heating coil. The system and method is particularly suitable for determining the position of an ingot within a melting system mold where the mold has a relatively reduced or small cross-sectional area. 1. A vacuum metallurgical system comprising:a segmented mold having an input end and an extraction end, configured to receive and cast a molten metal or alloy into an ingot;a primary heating induction coil positioned at least in part around the segmented mold and configured to induce heat in an interior region of the segmented mold;an heating power supply electrically coupled to and powering the primary heating induction coil;a tuning capacitor configured to tune the electrical circuit comprising at least the primary heating induction coil, the segmented mold, and the power supply;at least one sense coil positioned at least in part around an electrical conductor between the tuning capacitor and the primary heating induction coil;an ingot position actuator positioned to support and move the ingot and/or molten metal or alloy within the segmented mold; andan ingot position controller operatively coupled to at least both the at least one sense coil and the ingot position actuator, and configured to instruct the ingot position actuator to move molten metal or alloy within the segmented mold.2. The system according to claim 1 , further comprising a material feed configured to provide metal and/or alloy in either or both of solid or molten form to the input end of the segmented mold.3. The system according to claim 2 , wherein the material feed further comprises:a crucible positioned proximate to the input end of the segmented mold and configured to provide a molten metal or alloy into the segmented mold;a crucible heating system configured to melt ...

UPWARD CONTINUOUS CASTING APPARATUS AND UPWARD CONTINUOUS CASTING METHOD

An upward continuous casting apparatus includes a molten metal retaining furnace that retains a molten metal, a draw-out part that draws out the molten metal from a melt surface of the molten metal that is retained in the molten metal retaining furnace, a shape-defining member that is located in the vicinity of the melt surface and defines a cross-sectional shape of a casting to be cast by applying an external force to a retained molten metal that has been drawn out by the draw-out part, and a solid heat transfer member that is placed to contact a surface of the casting that is formed through the shape-defining member. 1. An upward continuous casting apparatus , comprising:a retaining furnace that retains a molten metal;a draw-out part that draws out the molten metal from a melt surface of the molten metal that is retained in the retaining furnace;a shape-defining member that defines a cross-sectional shape of a casting to be cast by applying an external force to a retained molten metal which is a unsolidified molten metal that has been drawn out by the draw-out part, the shape-defining member being located in the vicinity of the melt surface; anda solid heat transfer member that is placed to contact a surface of the casting that is formed by solidification of the retained molten metal.2. The upward continuous casting apparatus according to claim 1 ,wherein the solid heat transfer member is placed to contact a surface of the casting in the vicinity of an interface between the retained molten metal and the casting.3. The upward continuous casting apparatus according to claim 1 ,wherein the solid heat transfer member has a shape that corresponds to the cross-sectional shape of the casting at a portion of the solid heat transfer member placed into contact with the casting.4. The upward continuous casting apparatus according to claim 1 ,wherein the solid heat transfer member has a curved surface shape at a portion of the solid heat transfer member placed into contact ...

UP-DRAWING CONTINUOUS CASTING APPARATUS AND UP-DRAWING CONTINUOUS CASTING METHOD

An up-drawing continuous casting method casts a casting having a bent portion. When an angle (θ) (where, 0°≦θ≦90°) between an up-drawing direction of molten metal and an upper surface of a shape determining member is reduced to a first angle, drawing up the molten metal while maintaining the angle (θ) at the first angle, and casting a first casting, and casting a connecting portion adjacent to the cast first casting; interrupting the drawing up of the molten metal, and dipping the connecting portion into the molten metal while passing the connecting portion through the shape determining member, and melting the connecting portion; and setting the angle (θ) to a second angle that is larger than the first angle, restarting the drawing up of the molten metal and casting a second casting adjacent to the first casting. 1. An up-drawing continuous casting method that makes it possible to cast a casting having a bent portion , by drawing up molten metal held in a holding furnace while passing the molten metal through a shape determining member that determines a sectional shape of the cast casting , comprising:when an angle between an up-drawing direction of the molten metal and an upper surface of the shape determining member, the angle between the up-drawing direction of the molten metal and the upper surface of the shape determining member being within a range from 0° to 90°, is reduced to a first angle, drawing up the molten metal while maintaining the angle between the up-drawing direction of the molten metal and the upper surface of the shape determining member at the first angle, and casting a first casting, and then casting a connecting portion adjacent to the cast first casting;interrupting the drawing up of the molten metal, and dipping the connecting portion into the molten metal while passing the connecting portion through the shape determining member, and melting the connecting portion; andsetting the angle between the up-drawing direction of the molten metal ...

Manufacturing method of casting, manufacturing device thereof, and casting

There are provided a manufacturing method of a casting capable of easily manufacturing a casting having a complex form and of increasing the degree of freedom of form of the casting to be manufactured, a manufacturing device thereof and a casting. At the time of forming a casting by drawing out molten metal from a bath surface of a molten metal bath and solidifying the molten metal which has been drawn out, an outer contour unit configured from a plurality of outer contour defining members for defining the outer contour of a casting is arranged in a region between the bath surface of the molten meth bath and a solid region where the molten metal is solidified and the molten metal which has been drawn out from the bath surface is drawn out through a region determined by the outer contour unit, and the form of the casting is changed by moving at least one of the plurality of outer contour defining members according to the drawing out of the molten metal.

PROCESS AND APPARATUS FOR THE MANUFACTURING OF LONG STEEL PRODUCTS IN A CONTINUOUS CASTING PLANT

An apparatus for continuous casting has a withdrawal/straightening unit with pairs of rolls. The spacing distance between two rolls of each pair decrease to create a deformation of a long metal product poured from a mold. A particular deformation is a reduction of the section in one direction, preferably a vertical direction. 114-. (canceled)15. A process for manufacturing an elongated metallic product in a continuous casting plant , the process comprising:conducting the product to follow along a trajectory with a curvilinear section and a straight section;deforming the product in a plurality of deformation phases including at least a first deformation phase and a second deformation phase;each of said deformation phases including a contemporaneous deformation of a perimeter and a transversal section of the product;implementing the first deformation phase in the curvilinear section and implementing the second deformation phase in the straight section, effecting the first and second deformation phases in an area where liquid metal is still present in the product, and at a location where each deformation of the product provokes an increase of a speed of the product.16. The process according to claim 15 , which comprises effecting a further deformation of the perimeter and the transversal section of the product in a transition area located between the first deformation and the second deformation.17. The process according to claim 15 , wherein the deformation phases cause a deformation of the respective section of the product in one direction.18. The process according to claim 17 , wherein the one direction is a vertical direction.19. The process according to claim 15 , which comprises implementing further deformation phases along the deformation line.20. The process according to claim 15 , which comprises configuring the deformation phases to create a deformation of the respective section of the product in two mutually perpendicular directions.21. The process according ...

CONTINUOUS CASTING DEVICE FOR SLAB COMPRISING TITANIUM OR TITANIUM ALLOY

In the present invention the torch movement period is 20-40 seconds, with the torch movement period being the time required to move plasma torches (which heat the surface of molten metal in the casting mold) one time. The average heat input amount at multiple sites, which are obtained by dividing the initial solidification portion (which is where the molten metal makes contact with the casting mold and first solidifies) into multiple sites in the circumferential direction of the casting mold, is 1.0-2.0 MW/m. The molten metal advection time, which is the time required for electromagnetically stirred molten metal to travel the length of the torch heating region of the surface of the molten metal in the lengthwise direction of the casting mold, is 3.5 seconds or less. 1a plasma torch for heating a melt surface of the molten metal in the mold while moving over the melt surface of the molten metal in a predetermined moving pattern, the plasma torch being disposed above the mold; andan electromagnetic stirring device for stirring at least the melt surface of the molten metal by electromagnetic stirring, the electromagnetic stirring device being disposed on a side of the mold, the device having:a torch moving cycle T of 20 sec or more and 40 sec or less, the torch moving cycle T being a time required for the plasma torch to complete a single round of movement in the predetermined moving pattern and calculated by T=4W/(A·Vt), where 2W represents a length of a long side of the slab in a horizontal cross section, A represents the number of the plasma torch, and Vt represents an average moving speed of the plasma torch while moving in the predetermined moving pattern;{'sup': 2', '2, 'an average heat input quantity of 1.0 MW/mor more and 2.0 MW/mor less, the average heat input quantity being obtained by dividing an initial solidification portion, where the molten metal is initially solidified upon contacting with the mold, into a plurality of portions in a peripheral direction ...

Method for continuously casting slab

A main purpose of the present invention is to provide a continuous casting method for a slab satisfying reductions of center segregation and center porosity, and inhibitions of surface cracks and internal cracks of a slab. The method includes a step of carrying out reduction on a slab having an unsolidified part by horizontal rolls and a step of alternatively carrying out reduction on the slab completely solidified by horizontal rolls and vertical rolls, wherein in the former step, reduction ratio of the slab is more than 0.5% and no more than 3% and a ratio of a width of the unsolidified part at the cross section of the slab to a width of a contact part of the slab and the rolls is 0 to 7.15, and in the latter step, each reduction ratio of the slab by the rolls is 5.4% to 6.8%.

Method for manufacturing titanium ingot

The present invention is a method for manufacturing a titanium ingot ( 30 ), the method being characterized by comprising: a step of melting a titanium alloy for a predetermined time by cold crucible induction melting (CCIM); a step of supplying molten titanium ( 6 ) to a cold hearth ( 10 ), and separating high density inclusions (HDIs)( 8 ) by precipitation in the cold hearth ( 10 ) while spraying a plasma jet or an electron beam onto the bath surface of the molten titanium ( 6 ); and a step of supplying a molten titanium starting material from which the HDIs ( 8 ) are separated by precipitation to a mold ( 20 ) to obtain the titanium ingot.

CONTINUOUS CASTING APPARATUS FOR INGOTS OBTAINED FROM TITANIUM OR TITANIUM ALLOY

A continuous casting apparatus continuously casts an ingot formed of titanium or a titanium alloy. The apparatus includes a bottomless mold with a circular cross-sectional shape and a plasma torch. In the bottomless mold, a molten metal is poured from a top opening and the molten metal is solidified and the molten metal solidified is pulled out downward. The plasma torch is disposed on an upper side of the molten metal in the mold and generates a plasma arc that heats the molten metal. A plurality of plasma torches are disposed on the upper side of the molten metal in the mold. The plurality of plasma torches are moved in a horizontal direction above a melt surface of the molten metal along a trajectory keeping a distance not to allow for interference with each other. 1. A continuous casting apparatus of an ingot formed of titanium or a titanium alloy , which continuously casts the ingot formed of titanium or a titanium alloy , the continuous casting apparatus comprising: a bottomless mold with a circular cross-sectional shape in which a molten metal prepared by melting titanium or a titanium alloy is poured from a top opening and the molten metal is solidified and the molten metal solidified is pulled out downward; and a plasma torch which is disposed on an upper side of the molten metal in the mold and generates a plasma arc that heats the molten metal , whereina plurality of plasma torches are disposed on the upper side of the molten metal in the mold, andthe plurality of plasma torches are moved in a horizontal direction above a melt surface of the molten metal along a trajectory keeping a distance not to allow for interference with each other.2. The continuous casting apparatus of an ingot formed of titanium or a titanium alloy as claimed in claim 1 , wherein{'b': '2', 'the number of the plasma torches is , and'}the plasma torches are moved such that when one plasma torch is located on an upper side in the vicinity of an edge of the mold, the other plasma torch ...

SYSTEM AND METHOD FOR CONTROLLING THE CASTING OF A PRODUCT

A system for controlling the progress of the manufacture of at least one product by vertical semi-continuous direct chill casting, in particular from aluminium alloy, in a fixed mold, the control system includes a dummy bottom configured to form a movable lower bottom of the fixed mold and to carry the product during casting; a weighing cell, on which the dummy bottom is arranged to rest, the weighing cell being configured to take measurements representative of the mass of the product carried by the dummy bottom during casting; and a support of the dummy bottom, to which the weighing cell is linked, configured to lower the false bottom relative to the fixed mold, substantially in a vertical direction, during casting; and a processing unit connected to each weighing cell, and configured to process the measurements, and calculate the variation in the mass of the product over time. 141100. A system for controlling the carrying out of the manufacture of at least one product by vertical semi-continuous casting , with direct cooling , in particular aluminum alloy , in a fixed respective mold () , said control system () comprising:{'b': '4', 'at least one respective bottom block () configured to form a movable bottom base of the fixed respective mold and to carry the product, during casting,'}{'b': 3', '4', '3', '4, 'at least one weighing cell (), on which the respective bottom block () is disposed in abutment, the weighing cell () being configured to take measurements representing the mass of the product carried by the respective bottom block () during casting, and'}{'b': 2', '3', '4', '41, 'a bottom block support (), to which the weighing cell () is connected, configured to lower the/each bottom block () with respect to the fixed respective mold (), substantially in a vertical direction, during casting,'}{'b': 21', '3, 'at least one processing unit () connected to the/each weighing cell (), and configured to process the measurements, to calculate the variation in mass of ...

UP-DRAWING CONTINUOUS CASTING APPARATUS AND UP-DRAWING CONTINUOUS CASTING METHOD

An up-drawing continuous casting apparatus includes a holding furnace that holds molten metal, a shape determining member that is arranged near a molten metal surface of the molten metal held in the holding furnace, and that determines a sectional shape of a casting by the molten metal passing through the shape determining member, and a cooling portion that cools the molten metal that has passed through the shape determining member. The shape determining member includes, on a main surface on the molten metal surface side, at least one of a protruding portion that protrudes from the main surface, or a recessed portion that is recessed from the main surface. 1. An up-drawing continuous casting apparatus comprising:a holding furnace that holds molten metal;a shape determining member that is arranged near a molten metal surface of the molten metal held in the holding furnace, and that determines a sectional shape of a casting by the molten metal passing through the shape determining member, anda cooling portion that cools the molten metal that has passed through the shape determining member,wherein the shape determining member includes, on a main surface on the molten metal surface side, at least one of a protruding portion that protrudes from the mail surface, or a recessed portion that is recessed from the main surfaces.2. The up-drawing continuous casting apparatus according to claim 1 , further comprising:a molten metal passage portion that is provided in the shape determining member and through which the molten metal passes,wherein the protruding portion is a first protruding portion that is formed along an edge of the molten metal passage portion.3. The up-drawing continuous casting apparatus according to claim 2 , wherein a gap is provided between the main surface of the shape determining member and the molten metal surface.4. The up-drawing continuous casting apparatus according to claim 2 , wherein the shape determining member has the recessed portion formed at ...

THIN SLAB NOZZLE FOR DISTRIBUTING HIGH MASS FLOW RATES

A thin slab nozzle comprises: 115-. (canceled)1713111131. Thin slab nozzle according to claim 16 , wherein the total cross-sectional area A(X) measured on planes π normal to the longitudinal axis X of both the central bore and the first and second front ports is characterized in that the relative variation claim 16 , ΔA(X)/Aa=|Aa−A(X)|/Aa claim 16 , of the total cross-sectional area A(X) with respect to the total cross-sectional area Aa at the upstream boundary is not greater than 15% claim 16 , for any plane π intersecting the longitudinal axis X claim 16 , from the upstream boundary down to 70% of the height He of the converging bore portion.191111. Thin slab nozzle according to claim 18 , wherein the geometry of the nozzle contains a feature selected from the group consisting of: (a) the radius of curvature ρb claim 18 , measured on a section of the thin slab nozzle along the first symmetry plane π claim 18 , is constant at any point of the bore wall of the transition bore portion and (b) the radius of curvature ρc claim 18 , measured on a cut of the thin slab nozzle along the first symmetry plane π claim 18 , is constant at any point of the bore wall of the end bore portion.2012. Thin slab nozzle according to claim 19 , wherein claim 19 , excluding the first and second port inlets claim 19 , the radii of curvature and height ratios of the bore wall of the converging bore portion claim 19 , transition bore portion and end bore portion defined with respect to a section of the thin slab nozzle along the first symmetry plane π claim 19 , apply also to a section of the thin slab nozzle along the second symmetry plane π.2131213123121312131. Thin slab nozzle according to claim 16 , wherein the converging bore portion of the central bore claim 16 , excluding the first and second port inlets claim 16 , has an elliptical or circular cross-section along a plane π claim 16 , normal to the longitudinal axis X claim 16 , having principal diameters claim 16 , D(X) claim 16 , D ...

CRYSTALLIZER FOR CONTINUOUS CASTING AND METHOD FOR ITS PRODUCTION

Crystallizer for continuous casting comprising a tubular body having at least one wall which defines a through longitudinal casting cavity and a plurality of longitudinal grooves made at least on one part of the wall and open toward the outside thereof. A covering binding is associated to the external surface of the wall to close the longitudinal groves and thus obtain corresponding cooling channels configured to make a cooling liquid flow inside them. 111211122121321314122121512212. Crystallizer for continuous casting comprising a tubular body ( , ) having at least one wall ( , ) which defines a through longitudinal casting cavity ( , ) and a plurality of longitudinal grooves () made at least on one part of said at least one wall ( , ) and open toward the outside thereof , characterized in that a covering binding () , comprising one or more layers of fiber material , is irremovably wound around said external surface of said at least one wall ( , ).21516. Crystallizer as in claim 1 , characterized in that said covering binding () comprises at least a band () made using at least one fiber impregnated claim 1 , or pre-impregnated claim 1 , with polymer material.3122121512212. Crystallizer as in claim 2 , characterized in that said polymer material claim 2 , when polymerized around said wall ( claim 2 , ) claim 2 , determines the solid and irremovable attachment of said covering binding () with respect to said wall ( claim 2 , ).412212. Crystallizer as in any claim hereinbefore claim 2 , characterized in that said fiber material is wound in a direction mainly transverse to the longitudinal development of the wall ( claim 2 , ).5. Crystallizer as in any claim hereinbefore claim 2 , characterized in that said fiber is chosen from a group comprising carbon fibers claim 2 , glass fibers claim 2 , aramid fibers or combinations thereof claim 2 , and said polymer is chosen from a group comprising polyamide claim 2 , epoxy or polyester resins.615122121417. Crystallizer as in ...

METHOD FOR PRODUCING A FLAT PRODUCT FROM AN IRON-BASED SHAPE MEMORY ALLOY

Methods for producing a flat product from an iron-based shape memory alloy may involve casting a melt comprised of iron, alloying elements, and impurities into a strip having a thickness of 1-30 mm and cooling the melt as the strip is formed. A twin-roll caster may be employed to help cool and form the melt into the strip. The resultant flat product is highly resistant to bending and is robust under pressure and torsion. 19.-. (canceled)10. A method for producing a flat product from an iron-based shape memory alloy , the method comprising:casting a melt that comprises alloying elements, impurities, and primarily iron in a casting device to form a strip having a thickness of 1-30 mm;cooling the melt as the strip is formed with a wall disposed along a longitudinal side of a region of the casting device, wherein the wall moves in a direction along which the strip is emitted from the region of the casting device, wherein the melt in contact with the wall is cooled at a cooling rate of at least 20 K/s; and{'sub': 'F', 'heating the strip emitted from the region of the casting device at least to a martensite finish temperature (M) of the alloying elements of the melt,'} (i) manganese at 12 wt % to 45 wt %;', '(ii) silicon at 1 wt % to 12 wt %;', '(iii) at least one element from a group 1 that consists of elements N, B, and C such that ΣN,C,10·B≧0.005% in weight percent; or', '(iv) at least one element from a group 2 that consists of elements Ti, Nb, W, V, and Zr such that ΣTi,Nb,W,V,Zr≧0.01% in weight percent., 'wherein the melt comprises at least one of11. The method of wherein the casting device comprises a twin-roll caster or a belt caster.12. The method of further comprising:cooling and cold-rolling the strip emitted from the region of the casting device and permitting the strip to solidify on a casting belt; andhot-rolling the strip after the cold-rolling of the strip.13. The method of wherein the casting device comprises a belt caster claim 10 , wherein the melt in ...

High Ductility Steel Alloys with Mixed Microconstituent Structure

This disclosure deals with steel alloys containing mixed microconstituent structure that has the ability to provide ductility at tensile strength levels at or above 900 MPa. More specifically, the alloys contain Fe, B, Si and Mn and indicate tensile strengths of 900 MPa to 1820 MPa and elongations of 2.5% to 76.0%. 1. A method comprising:a. supplying a metal alloy comprising Fe at a level of 61.0 to 81.0 atomic percent, Si at a level of 0.6 to 9.0 atomic percent, Mn at a level of 1.0 to 17.0 atomic percent and optionally B at a level up to 6.0 atomic percent;b. melting said alloy and cooling and solidifying and forming an alloy that has a matrix grain size of 5.0 μm to 1000 μm and boride grains, if present, at a size of 1.0 μm to 50.0 μm;c. exposing said alloy formed in step (b) to heat and stress and forming an alloy that has matrix grains at a size of 1.0 μm to 100 μm, boride grains, if present, at a size of 0.2 μm to 10.0 μm and precipitation grains at a size of 1.0 nm to 200 nm.2. The method of wherein said heat and stress in step (c) comprises heating from 700° C. up to the solidus temperature of said alloy and wherein said alloy has a yield strength and said stress exceeds said yield strength.3. The method of wherein said stress is in the range of 5 MPa to 1000 MPa.4. The method of wherein said alloy formed in step (c) has a yield strength of 140 MPa to 815 MPa.5. The method of wherein said alloy formed in step (c) is exposed to a mechanical stress to provide an alloy having a tensile strength of greater than or equal 900 MPa and an elongation greater than 2.5%.6. The method of wherein said alloy has a tensile strength of 900 MPa to 1820 MPa and an elongation from 2.5% to 76.0%.7. The method of wherein said alloy formed in step (c) is exposed to a mechanical stress to provide an alloy having matrix grain size of 100 nm to 50.0 μm and boride grain size of 0.2 μm to 10.0 μm.8. The method of wherein said alloy has precipitation grains having a size of 1 nm to 200 ...

Metal Steel Production by Slab Casting

The present disclosure is directed at metal alloys and methods of processing with application to slab casting methods and post-processing steps towards sheet production. The metals provide unique structure and exhibit advanced property combinations of high strength and/or high ductility.

PULLING-UP-TYPE CONTINUOUS CASTING METHOD

A pulling-up-type continuous casting method according to an aspect of the present disclosure is a pulling-up-type continuous casing method for pulling up molten metal held in a holding furnace by using a starter. When the starter is accelerated to a predetermined pulling-up speed at a start of casting, the pulling-up-type continuous casting method includes a first acceleration section in which the starter is accelerated from a standstill state to a first speed at a first acceleration, a second acceleration section in which the starter is accelerated from the first speed to a second speed at a second acceleration, and a constant speed section in which the starter is pulled up at the first speed, the constant speed section being positioned between the first and second acceleration sections. 1. A pulling-up-type continuous casting method for pulling up molten metal held in a holding furnace by using a starter , whereinwhen the starter is accelerated to a predetermined pulling-up speed at a start of casting, the pulling-up-type continuous casting method includes:a first acceleration section in which the starter is accelerated from a standstill state to a first speed at a first acceleration;a second acceleration section in which the starter is accelerated from the first speed to a second speed at a second acceleration; anda constant speed section in which the starter is pulled up at the first speed, the constant speed section being positioned between the first and second acceleration sections.2. The pulling-up-type continuous casting method according to claim 1 , whereinthe first acceleration is an acceleration that will cause a tearing in the molten metal pulled-up by the starter before the pulling-up speed of the starter reaches the predetermined pulling-up speed when the starter is continuously accelerated from the standstill state at that acceleration, andthe second acceleration is an acceleration that will cause a tearing in the molten metal pulled-up by the starter ...

METHOD FOR CONTINUOUSLY CASTING STEEL

A primary object of the present invention is to provide a technique of avoiding occurrence of surface defects caused by an electromagnetic brake while checking internal defects with this electromagnetic brake, so that cleanliness of a cast steel can be improved compared with prior arts, and the present invention provides a method for continuously casting steel, the method comprising supplying molten steel into a funnel mold while applying an electromagnetic brake to an outlet flow discharged from an outlet port of an immersion nozzle, wherein magnetic flux density (B) of the electromagnetic brake is within a range of the following (Formula 1): 2. The method for continuously casting steel according to claim 1 , wherein D/Dis 1.16 to 1.24.3. The method for continuously casting steel according to claim 1 , wherein H/His 0.161 to 0.327.4. The method for continuously casting steel according to claim 1 , wherein the flow velocity v of the molten steel is 0.441 m/s to 1.256 m/s.5. The method for continuously casting steel according to claim 1 , wherein the outlet flow angle θ of the molten steel is −45° to −5°.68-. (canceled) The present invention relates to a method for continuously casting steel.Continuous casting of steel is carried out while molten metal in a tundish is supplied into a mold of continuous casting equipment via an immersion nozzle. The molten steel is discharged from an outlet port that is formed in a lower end portion of the immersion nozzle, into the mold, is cooled in the mold, and is withdrawn from a mold outlet in the state where a thickness of a solidified shell enough to prevent breakout is ensured. The solidified shell is completely solidified by secondary cooling with spray during the process of withdrawn, and is cut, to be a cast steel.As a technique of improving the cleanliness of a cast steel, for example, Patent Literature 1 discloses that electromagnetic stirrers are oppositely arranged in the vicinity of a meniscus in long sides of a mold, ...

DISTRIBUTION DEVICE

A distribution device for use with a vertical casting system includes a body made of a refractory material, which includes a base and a peripheral wall. The base and the peripheral wall enclose a trough for containing and distributing liquid metal. A thermally insulating layer is located in a recess beneath the base. The refractory material of the body has a first thermal conductivity and the thermally insulating layer is made of a material having a second thermal conductivity that is less than the first thermal conductivity. 1. A distribution device for distributing liquid metal in a vertical casting system , the distribution device comprising a body made of a refractory material , the body including a base and a peripheral wall that together provide a trough for containing and distributing liquid metal , and a thermally insulating layer located beneath the base , wherein the refractory material of the body has a first thermal conductivity and the thermally insulating layer is made of an insulating material having a second thermal conductivity that is less than the first thermal conductivity.2. The distribution device according to claim 1 , wherein the second thermal conductivity is less than 50%.3. The distribution device according to claim 1 , wherein the second thermal conductivity is less than 0.25 W/mK.4. The distribution device according to claim 1 , wherein the body is made of a refractory ceramic material.5. The distribution device according to claim 1 , wherein the first thermal conductivity is in a range of 0.25-1.0 W/mK.6. The distribution device according to claim 1 , wherein the thermally insulating layer is made of an insulating material selected from the group consisting of a microporous board material claim 1 , a vacuum formed or pressed fiberboard claim 1 , a refractory paper Of and a castable refractory material.7. The distribution device according to claim 1 , wherein the body of the distribution device includes at least one flow channel in the ...

SHEET MADE OF ALUMINIUM ALLOY FOR THE STRUCTURE OF A MOTOR VEHICLE BODY

The invention relates to the use of a sheet made of an aluminium alloy for manufacturing a stamped bodywork or structural part of a motor vehicle body, also referred to as a “body in white”, wherein said sheet has a yield strength Rpno lower than 60 MPa and a tensile elongation Ag0 no lower than 34%. The invention also relates to a method for making such a stamped bodywork or structural part for a motor vehicle body, made from said sheet and selected in the group including inner panels or linings for car doors, a passenger compartment floor, a boot floor, a spare wheel housing, or even a passenger compartment side. 1. A sheet of aluminium alloy for manufacturing stamped bodywork or a structural part of a motor vehicle body comprising “body-in-white” , wherein said sheet has a yield strength of Rpgreater than or equal to 60 MPa and a tensile elongation under uniaxial tension Agreater than or equal to 34%.2. A sheet of aluminium alloy according to claim 1 , wherein said sheet has a Hole Expansion Ratio claim 1 , HER claim 1 , greater than 50.3. A sheet of aluminium alloy according to claim 2 , wherein said Hole Expansion Ratio is greater than or equal to 55.4. A sheet of aluminium alloy according to claim 1 , wherein the composition of said sheet is as follows (as a percentage by weight):Si: 0.15-0.50; Fe: 0.3-0.7; Cu: 0.05-0.10; Mn: 1.0-1.5; other elements <0.05 each and <0.15 in total, and the rest of aluminium.5. A sheet of aluminium alloy according to claim 1 , wherein the Fe content of said sheet is between 0.5% and 0.7%:6. A sheet of aluminium alloy according to claim 1 , wherein the Si content of said sheet is between 0.15% and 0.30%:7. A sheet of aluminium alloy according to claim 1 , wherein the Mn content of said sheet is between 1.0% and 1.2% and preferably 1.1% and 1.2%.8. A sheet of aluminium alloy according claim 1 , wherein after degreasing treatment alone or followed by phosphate-free conversion by hydrolysis and condensation of polysiloxanes of said ...

Device for controlling flow in mold and method for controlling flow in mold in thin-slab casting

The device for controlling a flow in a mold in thin-slab casting of steel has a thickness on the short side of the meniscus portion of 150 mm or less and a casting width of 2 m or less and includes a DC magnetic field generation unit and an immersion nozzle having a slit formed at the bottom so that the slit leads to the bottom of the discharge hole and opens outside, the discharge hole and the slit are present in the DC magnetic field zone, and the magnetic flux density B (T) in the DC magnetic field zone and the distance L (m) from the lower end of the immersion nozzle to the lower end of the core satisfy Formulae (1) and (2) described below:0.35T≤B≤1.0T  Formula (1)L≥0.06 m  Formula (2)

METAL SHEET FOR A MOTOR VEHICLE BODY HAVING HIGH MECHANICAL STRENGTH

The subject matter of the invention is a sheet for stamped lining or structural parts for an auto body stilled referred to as a body-in-white, made of aluminum alloy having the following composition (% by weight): 2. Sheet according to claim 1 , wherein the Si concentration is between 0.90 and 1.10%.3. Sheet according to claim 1 , wherein the Cu concentration is between 0.10 and 0.20%.4. Sheet according to claim 1 , wherein the Mg concentration is between 0.70 and 0.80%.5. Sheet according to claim 1 , wherein the Zn concentration is between 1.10 and 1.60% and optionally between 1.20 and 1.50%.6. Sheet according to claim 1 , wherein the V concentration is between 0.05 and 0.30% and optionally between 0.10 and 0.20%.7. Sheet according to claim 1 , wherein the Ti concentration is between 0.08 and 0.15%.8. Sheet according to claim 1 , wherein the Mn concentration is between 0.10 and 0.20%.9. Sheet according to claim 1 , wherein the Fe concentration is between 0.15 and 0.25%.10. A method for making a sheet according to comprising:casting, optionally semi-continuous vertical casting of a plate and its possible scalping,the homogenization of said plate at a temperature of 550 to 570° C. with a hold for 2 to 12 hours, optionally 4 to 6 hours, following by rapid cooling,reheating to a temperature of between 450 and 550° C. with holding for between 30 minutes and 3 hours, optionally substantially 2 hours,hot rolling of the plate into a strip having a thickness of between 3 and 10 mm,cold rolling to the final thickness,solution heat treatment of the rolled strip at a temperature greater than the solvus temperature of the alloy, while avoiding incipient melting, that is, between 550 and 570° C. for 5 seconds to 5 minutes, followed by quenching at a rate of more than 50° C./s and optionally more than 100° C./s,pre-aging or reversion by coiling at a temperature of at least 60° C. followed by cooling of the resulting coil in open air.11. A method for making a sheet according to ...

Method for operating continuous casting machine

A primary object of this invention is to provide a method for operating a continuous casting machine with which a mold can oscillate with a predetermined oscillation waveform since the start of operation of an oscillator. This invention is a method for operating a continuous casting machine, the method comprising: withdrawing a slab from a mold while vertically oscillating the mold with an oscillation waveform represented by the following formula (1) by selecting a value of φ according to a value of b so that the following formula (1) satisfies r(0)=0: r ( t )=( S/ 2){sin(ω t +φ)+ b cos 2(ω t +φ)+ b}   ( 1 ) where r(t): displacement of the mold (mm), S: vibration stroke of the mold S (mm), ω: angular velocity (=2πf) (rad/s), f: oscillation frequency of the mold (Hz), t: time(s), φ: initial phase (°), and b: non-sine coefficient (0<b≦0.25).

Crystallizer for Continuous Casting and Method for Obtaining the Same

A crystallizer for continuous casting including a tubular body formed of a first and a second tubular element both monolithic each made in one single piece in a metal alloy and mounted coaxial, the first inside the second with radial play, one of the first and second tubular element being provided with one or more grooves opened towards the other tubular element; the first and second tubular element are mechanically coupled together, by plastic deformation by means of drawing between a die and a mandrel appropriately shaped, in such a manner to eliminate the radial play, so that the tubular body is monolithic and the grooves are radially closed, forming conduits in the tubular body configured to serve as cooling conduits and/or housing reinforcement bars. 1. A crystallizer for continuous casting comprising a tubular body having a longitudinal axis of symmetry and having a first open end and a second open end , the tubular body defining within it , along the axis of symmetry and between the first and second ends , a casting cavity having the shape of a longitudinal conduit along the axis of symmetry , the casting cavity being delimited by an inner surface of an annular lateral wall of the tubular body , in a radial thickness of which , perpendicular to the axis of symmetry , one or more conduits are provided; the tubular body being formed by a first tubular element and a second tubular element mounted coaxial the first inside the second and one of the tubular elements being provided , on one lateral surface thereof , with one or more grooves that are radially opened towards the other tubular element and are closed in a fluid-tight manner by a lateral surface of the other tubular element to form said one or more conduits; characterized in that the first and second tubular elements are both monolithic , each being made in a single piece of a metal alloy , and are mechanically coupled together by plastic deformation in such a way that the tubular body is monolithic , an ...

UP-DRAWING CONTINUOUS CASTING APPARATUS AND UP-DRAWING CONTINUOUS CASTING METHOD

An up-thawing continuous casting apparatus includes a holding furnace that holds molten metal; a shape determining member that is arranged near a molten metal surface of a casting held in the holding furnace, and that determines a sectional shape of the molten metal by the molten metal passing through the shape determining member; a cooling portion that cools and solidifies the molten metal that has passed through the shape determining member; and a molten metal cooling portion that lowers a temperature of the molten metal held in the holding furnace. 1. An up-drawing continuous casting apparatus comprising:a holding furnace that holds molten metal;a shape determining member that is arranged near a molten metal surface of the molten metal held in the holding furnace, and that determines a sectional shape of a casting by the molten metal passing through the shape determining member;a cooling portion that cools and solidifies the molten metal that has passed through the shape determining member; anda molten metal cooling portion that lowers a temperature of the molten metal held in the holding furnace.2. The up-drawing continuous casting apparatus according to claim 1 , wherein the molten metal cooling portion is provided directly below the shape determining member.3. The up-drawing continuous casting apparatus according to claim 1 , further comprising:an actuator that moves the molten metal cooling portion in a top-bottom direction inside the holding furnace.4. The up-drawing continuous casting apparatus according to claim 1 , wherein cooling gas passes through an inside of the molten metal cooling portion.5. The up-drawing continuous casting apparatus according to claim 1 , wherein the molten metal cooling portion is made of ceramic.6. The up-drawing continuous casting apparatus according to claim 1 , further comprising:a partition wall that surrounds the molten metal; and an ambient temperature regulating portion that regulates a temperature of an atmosphere ...

METHOD FOR PRODUCING PLATINUM GROUP METAL OR PLATINUM GROUP-BASED ALLOY

An object of the present invention is to provide a molten ingot of a platinum group metal or a platinum group-based alloy having a high material yield by suppressing a scattering phenomenon during heating and melting in a method for producing a platinum group metal or a platinum group-based alloy. The method for producing a platinum group metal or a platinum group-based alloy according to the present invention includes a preparing step of weighing a raw material that is partially or entirely of powder and, when the alloy is to be produced, mixing the weighed raw material to obtain a powder mixture, a molding step of molding and solidifying the prepared raw material to obtain molded bodies, a sintering step of sintering the molded bodies to obtain a sintered body, a melting step of melting the sintered body to produce a molten ingot, and a deformation processing step of processing the molten ingot. In the sintering step, the molded bodies are sintered in a stacked state to produce a sintered body as a joined body. 1a preparing step of weighing a raw material that is partially or entirely of powder and, when the alloy is to be produced, mixing the weighed raw material to obtain a powder mixture;a molding step of molding and solidifying the prepared raw material to obtain molded bodies;a sintering step of sintering the molded bodies to obtain sintered bodies;a melting step of melting the sintered bodies using energy beam melting that uses a boat-shaped water-cooled copper crucible having a cavity formed therein to produce a molten ingot; anda deformation processing step of processing the molten ingot,wherein, in the sintering step, a shape and dimensions of the sintered bodies are determined so as to conform to the cavity, andwherein, in the melting step, the sintered bodies conforming to the cavity are densely arranged in the cavity of the boat-shaped water-cooled copper crucible to produce the molten ingot.. A method for producing a platinum group metal or a platinum ...

METHOD FOR PRODUCING SHEET INGOTS BY VERTICAL CASTING OF AN ALUMINIUM ALLOY

A method for casting a metal alloy in an ingot mold extending along a vertical axis, the horizontal section of the ingot mold being parallelepiped in shape. During casting, a travelling alternating magnetic field is applied to a liquid phase of the alloy, the magnetic field having a maximum amplitude propagating along an axis of propagation. Under the effect of the magnetic field, a Lorentz force is applied to the liquid phase of the alloy, such that a Lorentz force of maximum intensity propagates along the axis of propagation. The method includes modulating the maximum intensity of the Lorentz force propagating along the axis of propagation. This modulation is obtained by varying, over time, one or more parameters, referred to as force parameters, governing the Lorentz force. An ingot obtained by the method is also described. 1. A method for casting an aluminum alloy ingot in a substantially rectangular ingot mold comprising the following steps:preparing the aluminum alloy;casting the aluminum alloy in the ingot mold, along a vertical casting axis, the alloy being cooled, during the casting, by a runoff of a coolant in contact with the solidified metal;{'sub': '0', 'during the casting, applying a magnetic field of which the amplitude (B) is periodically varied according to a frequency (ƒ), said magnetic field being generated by at least one magnetic field generator arranged at the periphery of the ingot mold, in such a way as to apply a Lorentz force (F) at different points of a liquid portion of the alloy in the process of solidification;'}{'sub': '0', 'sup': 'max', 'the magnetic field applied being a traveling magnetic field, propagating along an axis of propagation, in such a way that a maximum amplitude (B) of the magnetic field propagates along said axis of propagation, defining a propagation wavelength (λ), said traveling magnetic field driving a propagation, along said axis of propagation, a Lorentz force of maximum intensity;'}wherein the force parameter, ...

UP-DRAWING CONTINUOUS CASTING APPARATUS AND UP-DRAWING CONTINUOUS CASTING METHOD

An up-drawing continuous casting apparatus includes a holding furnace which holds molten metal, a guide-out member which guides the molten metal out from a surface of the molten metal held in the holding furnace, a shape determining member which is arranged to adjoin the surface of the molten metal and allows the molten metal guided out by the guide-out member to pass through the shape determining member to define a shape of a cross section of a casting, a cooling portion which cools the molten metal after the molten metal passes through the shape determining member, and an impact imparting portion which imparts an impact to the guide-out member or the casting. 1. An up-drawing continuous casting apparatus comprising:a holding furnace which holds molten metal;a guide-out member which guides the molten metal out from a surface of the molten metal held in the holding furnace;a shape determining member which is arranged to adjoin the surface of the molten metal and allows the molten metal guided out by the guide-out member to pass through the shape determining member to define a shape of a cross section of a casting;a cooling portion which cools the molten metal after the molten metal passes through the shape determining member; andan impact imparting portion which imparts an impact to the guide-out member or the casting.2. The up-drawing continuous casting apparatus according to claim 1 ,wherein the impact imparting portion imparts an impact to the guide-out member or the casting by striking the guide-out member or the casting with a metal rod.3. The up-drawing continuous casting apparatus according to claim 1 ,wherein the impact imparting portion moves along a moving path of the guide-out member.4. The up-drawing continuous casting apparatus according to claim 1 ,wherein the impact imparting portion is an oscillator.5. The up-drawing continuous casting apparatus according to claim 4 ,wherein the impact imparting portion is fixed to the guide-out member while ...

METHOD FOR CONTINUOUSLY CASTING SLAB CONTAINING TITANIUM OR TITANIUM ALLOY

The present invention provides a method for casting a slab with good cast surface quality. The method includes pouring molten metal into a mold from one of the paired shorter sides of the mold while allowing superheat ΔT [° C.], which is a temperature difference obtained by subtracting the melting point Tm [° C.] of the raw material from the temperature Tin [° C.] of the molten material on the surface of the molten metal in the mold and at the pouring point of the molten metal, to satisfy the following Formula (1) and Formula (2): 1. A method for continuously casting a slab containing titanium or a titanium alloy , the method comprising melting a raw material containing titanium or a titanium alloy to form molten metal , and pouring the molten metal into an open mold having a rectangular cross-section where the molten metal is solidified and withdrawn from the bottom of the mold , [{'br': None, 'i': T', 'T+, 'sup': '2', '0.0014Δ+0.0144Δ699.45>800 \u2003\u2003Formula (1)'}, {'br': None, 'i': T', 'T+, 'sup': '2', '0.0008Δ+0.2472Δ853.02<1250 \u2003\u2003Formula (2)'}], 'wherein the molten metal is poured from one of the paired shorter sides of the mold while allowing superheat ΔT [° C.], which is a temperature difference obtained by subtracting the melting point Tm [° C.] of the raw material from the temperature Tin [° C.] of the molten material on the surface of the molten metal in the mold and at the pouring point of the molten metal, to satisfy the following Formula (1) and Formula (2)2. The method for continuously casting a slab containing titanium or a titanium alloy according to claim 1 , wherein the superheat ΔT is 300° C. or higher.3. The method for continuously casting a slab containing titanium or a titanium alloy according to claim 1 , wherein the surface of the molten metal in the mold is heated by plasma arc.4. The method for continuously casting a slab containing titanium or a titanium alloy according to claim 2 , wherein the surface of the molten metal ...

METHOD, APPARATUS, AND PROGRAM FOR DETERMINING CASTING STATE IN CONTINUOUS CASTING

A determination apparatus of a casting state in continuous casting where there are a solidified shell, a mold flux layer, and a mold being respective thermal conductors between a molten steel and cooling water for the mold, the determination apparatus comprising an estimation unit, a calculation unit, and a determination unit. A computer program for causing a computer to determine a casting state in continuous casting where there are a solidified shell, a mold flux layer, and a mold being respective thermal conductors between a molten steel and cooling water for the mold. 1. A determination apparatus of a casting state in continuous casting where there are a solidified shell , a mold flux layer , and a mold being respective thermal conductors between a molten steel and cooling water for the mold , the determination apparatus comprising:an estimation unit which finds a heat transfer coefficient α being a heat flux per a unit temperature difference between the solidified shell and the mold sandwiching the mold flux layer and a heat transfer coefficient β between the molten steel and the solidified shell by using data from a plurality of temperature sensing units which are embedded in the mold while shifting positions in a casting direction by solving an inverse problem, and estimates a solidified shell thickness and a solidified shell temperature from the heat transfer coefficient α and the heat transfer coefficient β;a calculation unit which sets the heat transfer coefficient α, the heat transfer coefficient β, the solidified shell estimated thickness, and the solidified shell estimated temperature found by the estimation unit as solidified state in mold estimation amounts, and obtains solidified state in mold evaluation amounts from the solidified state in mold estimation amounts; anda determination unit which determines whether a normal casting state or an abnormal casting state by comparing at least one or more kinds of amounts contained in the solidified state in ...

CONTINUOUS CASTING METHOD

In a continuous casting apparatus for casting a stainless steel billet , a long nozzle extending into a tundish is provided at a ladle for pouring a molten stainless steel in the ladle into the tundish . Further, a nitrogen gas is supplied as a seal gas around the molten stainless steel in the tundish , and continuous casting of the stainless steel billet is performed, in which, while immersing the spout of the long nozzle into the molten stainless steel in the tundish , the molten stainless steel is poured through the long nozzle into the tundish and the molten stainless steel in the tundish is poured into a casting mold 1. A continuous casting method for casting a solid metal by pouring a molten metal in a ladle into a tundish disposed therebelow and continuously pouring the molten metal in the tundish into a casting mold , the continuous casting method comprising:supplying a nitrogen gas as a seal gas around the molten metal in the tundish; andpouring into the tundish the molten metal in the ladle through a pouring nozzle and pouring into the casting mold the molten metal in the tundish, while immersing a spout of the pouring nozzle, which serves for pouring into the tundish the molten metal in the ladle, into the molten metal in the tundish.2. The continuous casting method of claim 1 , wherein a tundish powder is sprayed over a surface of the molten metal in the tundish claim 1 , and the tundish powder is interposed between the molten metal and the nitrogen gas.3. The continuous casting method of claim 1 , wherein the spout of the pouring nozzle is inserted to a depth of 100 mm to 150 mm into the molten metal in the tundish.4. The continuous casting method of claim 1 , wherein the solid metal which is to be cast is a stainless steel with a concentration of contained nitrogen of 400 ppm or less.5. The continuous casting method of claim 2 , wherein the spout of the pouring nozzle is inserted to a depth of 100 mm to 150 mm into the molten metal in the tundish.6. ...

CONTINUOUS CASTING METHOD

In a continuous casting device for casting a stainless steel billet , a long nozzle extending into a tundish is provided at a ladle . A molten stainless steel is poured through the long nozzle into the tundish , and a spout of the long nozzle is immersed into the poured molten stainless steel . During pouring, an argon gas is supplied around the molten stainless steel in the tundish . Further, continuous casting is performed, in which, while immersing the spout of the long nozzle into the molten stainless steel in the tundish , the molten stainless steel is poured from the ladle into the tundish and poured from the tundish into a casting mold . During casting, a nitrogen gas is supplied instead of the argon gas around the molten stainless steel inside the tundish 1. A continuous casting method for casting a solid metal by pouring a molten metal in a ladle into a tundish disposed therebelow and continuously pouring the molten metal in the tundish into a casting mold , the continuous casting method comprising:a long nozzle installation step for providing in the ladle a long nozzle extending into the tundish as a pouring nozzle for pouring into the tundish the molten metal in the ladle;a pouring step for pouring the molten metal into the tundish through the long nozzle and immersing a spout of the long nozzle into the molten metal in the tundish;a first seal gas supply step for supplying an inert gas as a seal gas around the molten metal in the tundish in the pouring step;a casting step for pouring the molten metal into the tundish through the long nozzle, while immersing the spout of the long nozzle into the molten metal in the tundish, and pouring into the casting mold the molten metal in the tundish; anda second seal gas supply step for supplying a nitrogen gas, instead of the inert gas, as a seal gas around the molten metal in the tundish in the casting step.2. The continuous casting method of claim 1 , wherein the inert gas of the first seal gas supply step is ...

CONTINUOUS CASTING METHOD

In a continuous casting method for casting an aluminum-deoxidized molten stainless steel by using a continuous casting apparatus in which a long nozzle extending into a tundish is provided at a ladle the molten stainless steel is poured through the long nozzle into the tundish while immersing a spout into the poured molten stainless steel and the molten stainless steel in the tundish is poured into a casting mold A TD powder is sprayed so that the powder covers the surface of the molten stainless steel in the tundish a nitrogen gas is supplied around the molten stainless steel and a calcium-containing material is added to the molten stainless steel in the tundish The surface of the molten stainless steel after casting is ground. 1. A continuous casting method for casting a solid metal by pouring a molten metal , subjected to aluminum deoxidation in a ladle , into a tundish and continuously pouring the molten metal in the tundish into a casting mold , the continuous casting method including:a long nozzle installation step for providing in the ladle a long nozzle extending into the tundish as a pouring nozzle for pouring the molten metal in the ladle into the tundish;a casting step for pouring the molten metal into the tundish through the long nozzle, while immersing a spout of the long nozzle into the molten metal poured into the tundish, and pouring the molten metal in the tundish into the casting mold;a spraying step for spraying a tundish powder so that the powder covers the surface of the molten metal in the tundish;a seal gas supply step for supplying a nitrogen gas as a seal gas around the molten metal sprayed with the tundish powder;a calcium-containing material addition step for adding a calcium-containing material to the molten metal retained in the tundish; anda grinding step for grinding the surface of the cast solid metal.2. The continuous casting method of claim 1 , wherein the molten metal includes titanium as a component.3. The continuous casting ...

METHOD FOR PRODUCING A METAL PRODUCT

A method for producing a metal product, wherein in a strand casting system, liquid metal is output as a slab from a mold vertically downward in a conveying direction, is guided along a strand guide, and is deflected into the horizontal, wherein the slab is heated in a furnace or inductively downstream of the stand casting system. 110-. (canceled)11. A method for producing a metallic product , for which liquid metal is discharged from a mold in a strand casting system as a slab vertically downwards in the conveying direction , guided along a strand guide and diverted into the horizontal direction , the slab being heated in a furnace downstream from the strand casting system , wherein the method comprises the steps of:a) in the conveying direction behind the mold in a first cooling zone: intensive cooling of the slab takes place in such a way, that a structural conversion from austenite to ferrite occurs in the edge region of the slab near the surface;b) downstream from the first cooling zone in the conveying direction in a first heating zone: reheating the slab in such a way that a structure conversion from ferrite into austenite takes place in the edge zone of the slab near the surface, the reheating of the slab taking place due to heat equalization in the slab, in that heat is permitted to flow from the interior of the slab to the surface of the slab;c) in the conveying direction behind the first heating zone in a second cooling zone: intensive cooling of the slab in such a way, that a structural conversion of austenite into ferrite takes place in the edge zone of the slab near the surface;d) downstream from the second cooling zone in the conveying direction, in a second heating zone: reheating of the slab in such a way, that structural conversion from ferrite into austenite takes place in the edge zone of the slab near the surface, the slab being heated in the furnace or by inductive heating.wherein at least one further intensive cooling of the slab is carried out ...

ABRASION-RESISTANT STEEL PLATE AND METHOD OF PRODUCING ABRASION-RESISTANT STEEL PLATE

An abrasion-resistant steel plate comprises: a specific chemical composition; and a microstructure in which a volume fraction of martensite at a depth of 1 mm from a surface of the abrasion-resistant steel plate is 90% or more, and a prior austenite grain size in a plate thickness central part at the mid-thickness of the abrasion-resistant steel plate is 80 μm or less, wherein hardness at a depth of 1 mm from the surface of the abrasion-resistant steel plate is 460 to 590 HBW 10/3000 in Brinell hardness, and a concentration [Mn] of Mn in mass % and a concentration [P] of P in mass % in a plate thickness central segregation area satisfy 0.04[Mn]+[P]<0.50. 17-. (canceled)8. An abrasion-resistant steel plate comprising: C: more than 0.23% and 0.34% or less,', 'Si: 0.01% to 1.0%,', 'Mn: 0.30% to 2.50%,', 'P: 0.020% or less,', 'S: 0.01% or less,', 'Cr: 0.01% to 2.00%,', 'Al: 0.001% to 0.100%,', 'N: 0.01% or less, and', 'a balance consisting of Fe and inevitable impurities; and, 'a chemical composition containing, in mass %,'}a microstructure in which a volume fraction of martensite at a depth of 1 mm from a surface of the abrasion-resistant steel sheet is 90% or more, and a prior austenite grain size at the mid-thickness of the abrasion-resistant steel plate is 80 μm or less,wherein hardness at a depth of 1 mm from the surface of the abrasion-resistant steel plate is 460 to 590 HBW 10/3000 in Brinell hardness, and {'br': None, '0.04[Mn]+[P]<0.50 \u2003\u2003(1).'}, 'a concentration [Mn] of Mn in mass % and a concentration [P] of P in mass % in a plate thickness central segregation area satisfy the following Expression (1)9. The abrasion-resistant steel plate according to claim 8 , Cu: 0.01% to 2.0%,', 'Ni: 0.01% to 5.0%,', 'Mo: 0.01% to 3.0%,', 'Nb: 0.001% to 0.100%,', 'Ti: 0.001% to 0.050%,', 'B: 0.0001% to 0.0100%,', 'V: 0.001% to 1.00%,', 'W: 0.01% to 1.5%,', 'Ca: 0.0001% to 0.0200%,', 'Mg: 0.0001% to 0.0200%, and', 'REM: 0.0005% to 0.0500%., 'wherein the chemical ...

SEMI-CONTINUOUS CASTING OF A STEEL STRIP

A method for semi-continuous casting of a strand () of steel in a strand casting machine and a strand casting machine for such casting. The strand has little segregation of the center and porosity. Yet it is castable rapidly. The method steps are: at a casting start of the strand casting machine, pouring liquid steel into an open-ended mold (). The mold is closed by a cold strand (). The liquid steel forms, together with the cold strand, a completely solidified strand start () and subsequently forms a semi-solidified strand (). Then extracting the semi-solidified strand () from the open-ended mold (). Supporting and guiding the semi-solidified strand () in a strand guide (). Cooling the semi-solidified strand () by secondary cooling () at the casting end of the strand casting machine, ending the pouring of liquid steel into the open-ended mold () and forming a strand end (). Extracting the strand end () from the open-ended mold (). Ending the extraction such that the strand end () lies outside the open-ended mold (). Ending the secondary cooling (). Controlling or regulating cooling of the semi-solidified strand () until complete solidification of the strand () in a tertiary cooling zone () of the strand casting machine. The cooling effect is stronger at the strand start () and decreases towards the strand end (). Discharging the strand () from the strand casting machine. 1. A method for semi-continuous casting of a strand made of steel in a strand casting machine , wherein the strand casting machine comprises:a cooled open-ended mold configured for primary cooling of the strand, followed bya strand guide for supporting and guiding movement of the strand, and having secondary cooling located and configured for cooling the strand, followed bytertiary cooling for cooling the strand,the method comprising steps of:starting casting in the strand casting machine, comprising pouring liquid steel into the open-ended mold while closing off the mold by a dummy bar and so that ...

Continuous casting method

In a continuous casting method for casting aluminum-deoxidized molten stainless steel 1 by using a continuous casting apparatus 100 in which a long nozzle 3 extending into a tundish 101 is provided at a ladle 2, the molten stainless steel 1 is poured into the tundish 101 through the long nozzle 3, while the spout 3 a of the long nozzle 3 is being immersed in the molten stainless steel 1 that has been poured, and the molten stainless steel 1 in the tundish 101 is poured into a casting mold 105. A TD powder 5 is sprayed so that the powder covers the surface of the molten stainless steel 1 in the tundish 101, and nitrogen gas is supplied around the molten stainless steel 1. A calcium-containing material is added to the molten stainless steel 1 in a state other than a state of retention in the tundish 101.

Cu-Ga Alloy Sputtering Target, and Method for Producing Same

A melted and cast Cu—Ga alloy sputtering target containing 22 at % or more and 29 at % or less of Ga, and remainder being Cu and unavoidable impurities, wherein the Cu—Ga alloy sputtering target has an eutectoid structure configured from a mixed phase of a ζ phase, which is an intermetallic compound layer of Cu and Ga, and a γ phase, and satisfies a relational expression of D≦7×C−150 when a diameter of the γ phase is D μm and a Ga concentration is C at %. A sputtering target having a cast structure is advantageous in that gas components such as oxygen can be reduced in comparison to a sintered compact target. Thus, it is possible to reduce oxygen and obtain a target with a favorable cast structure, in which the segregated phase is dispersed, by continuously solidifying the sputtering target having the foregoing cast structure under a solidifying condition of a constant cooling rate.

FREE CASTING METHOD, FREE CASTING APPARATUS, AND CASTING

A free casting method according to the present invention includes, a lead-out step for leading out molten metal from a lead-out area (P) provided in a source of supply, e.g. a surface level of the molten metal, to retain the molten metal temporarily by surface films (F) generated on an outer surface, and a forming step for obtaining a formed body by solidifying retained molten metal (MS) led out along a set passage (L) depending on a desired casting shape, wherein the retained molten metal is solidified after being formed into the desired casting shape by applying an external force thereto at positions between an unrestrained root portion of the retained molten metal in vicinity of the surface level of the molten metal and a solidification interface defined as a boundary between the retained molten metal and the formed body in the forming step. 1. A free casting apparatus , comprising:a crucible in which molten metal is contained, anda shape providing member configured to apply an external force to retained molten metal led out from a surface level of the molten metal contained in the crucible and temporarily retained by a surface film generated on an outer surface or surface tension to form the retained molten metal into a shape.2. The free casting apparatus as claimed in claim 1 , further comprising a drive source configured to guide an inducing body having a solid for inducing a basic shape designed for obtaining a desired casting shape along a set passage depending on the desired casting shape from the surface of the molten metal in the crucible.3. The free casting apparatus as claimed in claim 1 , further comprising a nozzle used to blow fluid to an outer surface of the retained molten metal or an outer surface of a formed body obtained by solidifying the retained molten metal.4. A casting obtained by a free casting method claim 1 , the method including:drawing molten metal up from a surface level of a molten metal in a crucible along a set passage;forming a ...

Aluminium - copper - lithium alloy products with improved fatigue properties

The disclosure provides for plate having a thickness of at least 80 mm comprising aluminium alloy as a percentage by weight %: Cu: 2.0-6.0; Li: 0.5-2.0; Mg: 0-1.0; Ag: 0-0.7; Zn 0-1.0; and at least one element selected from Zr, Mn, Cr, Sc, Hf and Ti, the amount of said element, if selected, being 0.05 to 0.20 wt % for Zr, 0.05 to 0.8% wt % t for Mn, 0.05 to 0.3 wt % for Cr and for Sc, 0.05 to 0.5 wt % Hf and 0.01 to 0.15% wt % for Ti, Si≦0.1; Fe≦0.1; others ≦0.05 each and ≦0.15 in total, wherein the aged state logarithmic fatigue mean measured at mid-thickness in the LT direction on smooth specimens with a maximum stress amplitude of 242 MPa, a frequency of 50 Hz, a stress ratio of R=0.1 of at least 250,000 cycles.

METHOD AND APPARATUS FOR REDUCING BUBBLES OR GAS POCKETS IN A METAL INGOT USING A CONTINUOUS CASTING MOLD

A method and apparatus are provided to cast a metal ingot using a continuous casting mold so that the ingot is essentially free of gas pockets which otherwise would result from gas bubbles being entrapped in the mushy zone and solid portion of the ingot during formation, wherein such bubbles may be caused by pouring molten metal into a molten liquid portion of the forming ingot and by impingement of a plasma plume of a plasma torch on the upper surface of the molten liquid portion. 1. A method comprising the steps of:providing a segmented continuous casting mold comprising in alternating fashion a plurality of electrically conductive upwardly extending fingers and a plurality of electrically nonconductive high temperature insulation pieces;withdrawing a metal ingot from the mold wherein the ingot comprises a solid portion, a mushy zone on top of the solid portion and a liquid portion on top of the mushy zone;producing gas bubbles in the liquid portion by at least one of (a) pouring molten metal into the liquid portion and (b) heating the liquid portion with a plasma plume of a plasma torch; andheating the liquid portion with an induction coil adjacent the mold whereby the liquid portion comprises a liquid metal head and a bubble zone such that the liquid metal head is on top of the mushy zone and essentially free of gas bubbles, and the bubble zone is on top of the liquid metal head and comprises gas bubbles.2. The method of further comprising the step of heating the liquid portion with a plasma plume of a plasma torch.3. The method of further comprising the step of pouring molten metal into the liquid portion.4. The method of wherein the step of pouring comprises pouring molten metal into the liquid portion from a hearth; wherein the hearth and mold are within an inert gas atmosphere.5. The method of further comprising the step of heating the liquid portion with a plasma plume of a plasma torch.6. The method of further comprising the step of preventing the pouring ...

STEEL PLANT WITH MULTIPLE CO-ROLLING LINE AND CORRESPONDING METHOD OF PRODUCTION

A steel plant for the production of long metal products comprises a continuous casting machine and a rolling mill disposed contiguous and in direct succession downstream of the continuous casting machine. The continuous casting machine is provided with at least two casting lines and the rolling mill is provided with at least two rolling lines. The plant comprises a single feed apparatus for feeding molten metal, and the at least two casting lines are configured to receive molten metal from the single feed apparatus. 1111114ab. Steel plant for the production of long metal products , comprising a continuous casting machine and a rolling mill disposed contiguous and in direct succession downstream of the continuous casting machine , in which the continuous casting machine is provided with at least two casting lines and the rolling mill is provided with at least two rolling lines , wherein each casting line is aligned with a respective rolling line defining overall at least two co-rolling lines disposed adjacent along respective work directions , said plant comprising a single feed apparatus for feeding molten metal , said at least two casting lines being configured to receive molten metal from said single feed apparatus , and further comprising at least a central management unit connected at least to an extractor unit of each of said at least two casting lines ( ,) and to a regulation device to regulate the stream of molten metal from said feed apparatus () to a corresponding crystallizer of each of said at least two casting lines , said central management unit being configured to control independently and autonomously at least each extractor unit and each regulation device so as to selectively vary the casting speed of each casting line , independently and autonomously with respect to the at least one other casting line.2. Steel plant as in claim 1 , and further comprising a transfer path for the semifinished cast products from the casting machine to the rolling mill ...

A PREPARATION METHOD OF ORIENTED HIGH SILICON STEEL

The preparation method includes steps of (1) melting steel according to in weight percentage 0.001-0.003% of C, 5.0-6.6% of Si, 0.2-0.3% of Mn, 0.05-0.12% of Al, 0.01-0.04% of V, 0.03-0.06% of Nb, 0.02-0.03% of S, 0.009-0.020% of N, O which is less than or equal to 0.0020%, and the balance being Fe and unavoidable impurities; (2) forming cast strips after a thin-strip casting course; (3) hot-rolling the cast strips under inert atmosphere conditions; (4) cooling the hot-rolled cast strips to 550-600 DEG C, coiling and performing low-temperature hot rolling/warm rolling on the coiled cast strips under a nitrogen atmosphere condition; (5) removing oxidized scales though pickling, performing cold rolling multiple times; (6) performing recrystallization annealing, coating with an MgO layer, and coiling; (7) performing purification annealing under hydrogen circulation conditions; and (8) removing oxidized scales, coating with an insulating layer, performing flat stretch annealing, and air-cooled coiling. 1. A preparation method of oriented high silicon steel , being performed according to the following steps of:{'b': '0', '(1) smelting to obtain molten steel according to set components in percentage by weight: 0.001-0.003% of C, 5.0-6.6% of Si, 0.2-0.3% of Mn, 0.05-0.12% of Al, 0.01-0.04% of V, 0.03-0.06% of Nb, 0.02-0.03% of S, 0.009-0.020% of N, which is less than or equal to 0.0020%, and the balance being Fe and unavoidable impurities;'}(2) performing a thin-strip casting course: enabling the molten steel to be charged from a gate into a tundish which is preheated at the temperature of 1200-1250 DEG C, controlling the superheat temperature to be at 20-50 DEG C, and through the tundish, enabling the molten steel to enter a thin-strip casting machine and to be formed into cast strips of which the thickness is 1.8-3.0 mm;(3) after drawing out cast strips, cooling the cast strips to 1000-1050 DEG C at the cooling rate of 50-100 DEG C/s under inert atmosphere conditions, ...

MELTING FURNACE FOR PRODUCING METAL

In production of a reactive metal using a melting furnace for producing metal having a hearth, ingots can be efficiently produced by efficiently cooling the ingots extracted from the mold provided in the melting furnace. In addition, an apparatus structure in which multiple ingots can be produced with high efficiency and high quality from one hearth, is provided. A melting furnace for producing metal is provided, the furnace has a hearth for having molten metal formed by melting raw material, a mold in which the molten metal is poured, an extracting jig which is provided below the mold for extracting ingot cooled and solidified downwardly, a cooling member for cooling the ingot extracted downwardly of the mold, and an outer case for keeping the hearth, the mold, the extracting jig, and the cooling member separated from the air, wherein at least one mold and extracting jig are provided in the outer case, and the cooling member is provided between the outer case and the ingot, or between the multiple ingots. 1. An electron beam melting furnace for producing metal , comprising:a hearth;a plurality of molds, each mold of the plurality of molds positioned to receive a molten material from the hearth;a plurality of extracting jigs, each extracting jig of the plurality positioned below a mold of the plurality of molds and capable of extracting downward an ingot received from the mold of the plurality of molds; andat least one cooling member positioned between at least two extracting jigs of the plurality of extraction jigs, the cooling member comprising:a first internal portion receiving a fluid of a first temperature;a second internal portion positioned below the first internal portion and receiving a fluid of a second temperature lower than that of the first temperature; anda dividing wall separating the first internal portion from the second internal portion.2. A melting furnace for producing metal , comprising:a hearth for holding molten metal formed by melting a raw ...

VERTICAL SEMI-CONTINUOUS CASTING EQUIPMENT AND VERTICAL SEMI-CONTINUOUS CASTING METHOD

Provided is vertical semi-continuous casting equipment including a guide device disposed under the mold to support the slab drawn from the plate, the guide device being configured to guide the descending of the slab. The guide device includes first and second guide parts including a plurality of guide rolls respectively disposed on both sides of a moving path of the plate under the mold to support the slab moving by the plate and guide the movement of the slab and a braking unit connected to each of the guide rolls to apply braking force to the guide roll that rotates by the movement of the slab. In accordance with an exemplary embodiment, the slab having the length longer than that of the slab in accordance with the related art may stably descend, the shaking of the slab may be prevented, and the casting speed may be stabilized. 1. Vertical semi-continuous casting equipment comprising:a mold configured to cool molten steel, thereby casting a slab;an elevatable plate descending while supporting a lower portion of the slab that is cast in the mold to draw the slab from the mold in a state in which the slab is disposed in a direction perpendicular to the ground; anda guide device disposed under the mold to support the slab drawn from the plate, the guide device being configured to guide the descending of the slab,wherein the guide device comprises first and second guide parts comprising: a plurality of guide rolls respectively disposed on both sides of a moving path of the plate under the mold to support the slab moving by the plate and guide the movement of the slab; and a braking unit connected to each of the guide rolls to apply braking force to the guide roll that rotates by the movement of the slab.2. The vertical semi-continuous casting equipment of claim 1 , wherein each of the first and second guide parts comprises a roll driving unit connected to each of the guide rolls to allow the guide roll to move forward or backward toward the moving path of the slab and ...

CONTINUOUS CASTING METHOD FOR INGOT PRODUCED FROM TITANIUM OR TITANIUM ALLOY

By controlling the temperature (T) of a surface portion () of an ingot () in a contact region () between a mold () and the ingot () and/or a passing heat flux (q) from the surface portion () of the ingot () to the mold () in the contact region (), the thickness (D) in the contact region () of a solidified shell () obtained by the solidification of molten metal () is brought into a predetermined range. Consequently an ingot having a good casting surface state can be cast. 1. A continuous casting method for continuously casting an ingot made of titanium or a titanium alloy by injecting molten metal having titanium or a titanium alloy melted therein into a bottomless mold and withdrawing the molten metal downward while being solidified ,wherein, by controlling temperature of a surface portion of the ingot in a contact region between the mold and the ingot, and/or a passing heat flux from the surface portion of the ingot to the mold in the contact region, thickness of a solidified shell formed by solidifying the molten metal in the contact region is brought into a predetermined range.2. The continuous casting method for the ingot made of titanium or a titanium alloy according to claim 1 , wherein average values of the temperature Tof the surface portion of the ingot in the contact region are controlled into the range of 800° C. Подробнее

CONTINUOUS CASTING METHOD AND CONTINUOUS CASTING DEVICE FOR TITANIUM INGOTS AND TITANIUM ALLOY INGOTS

The continuous casting device according to the present invention enables at least some of a plurality of hearths () to be converted between being hearths () used for titanium, which are used during the continuous casting of titanium ingots, and being hearths () used for titanium alloy, which are used during the continuous casting of titanium alloy ingots. The number of hearths () used for titanium alloy is greater than the number of hearths () used for titanium. Also, the total capacity of the hearths () used for titanium alloy is greater than the total capacity of the hearths () used for titanium. Thus, titanium ingots and titanium alloy ingots can each be continuously cast by means of a single piece of equipment. 1. A continuous casting device for titanium ingot and titanium alloy ingot that injects a molten metal having titanium or a titanium alloy melted therein into a bottomless mold via a plurality of hearths and while solidifying the molten metal , withdraws the resulting ingot downward , and thereby produces an ingot made of the titanium or titanium alloy by continuous casting ,wherein as at least some of the hearths, hearths for titanium to be used at the time of continuous casting for titanium ingot and hearths for titanium alloy to be used at the time of continuous casting for titanium alloy ingot can be used exchangeably,the number of the hearths for titanium alloy is greater than the number of the hearths for titanium, andthe total capacity of the hearths for titanium alloy is greater than the total capacity of the hearths for titanium.2. The continuous casting device for titanium ingot and titanium alloy ingot according to claim 1 , comprising a plurality of plasma arc heaters provided swingably above the hearths and capable of heating the surface of the molten metal in the hearths claim 1 ,wherein the number of the plasma arc heaters to be used at the time of continuous casting for titanium alloy ingot is greater than the number of the plasma arc ...

Molding device for continuous casting with stirring unit

A molding device includes a mold that forms a casting by cooling received melt, and a stirring unit that applies a magnetic field to the melt in the mold and allows a current to flow in the melt. The mold forms a vertical casting space that includes an inlet into which the melt flows and an outlet from which a product is taken. A transition plate is disposed at the mold space inlet. The melt can flow into the casting space from a hole in the transition plate. The stirring unit includes a magnetic field unit making lines of magnetic force vertically run into the casting space, and a first electrode at the inlet side and a second electrode at the outlet side that can flow current through the melt in the casting space, and generate an electromagnetic force by making the flowing current cross the lines of magnetic force.

UP-DRAWING CONTINUOUS CASTING APPARATUS AND UP-DRAWING CONTINUOUS CASTING METHOD

An up-drawing continuous casting apparatus includes a holding furnace that holds molten metal, and a shape defining member that is set near a molten metal surface of a molten metal held in the holding furnace, and defines a section shape of a casting to be cast, as the molten metal passes through the shape defining member. The shape defining member is able to be switched between a joined state and a partitioned state. With such a structure, it becomes possible to form a casting having a branched structure. 1. An up-drawing continuous casting apparatus , comprising:a holding furnace that holds molten metal; anda shape defining member that defines a sectional shape of a casting to be cast, as the molten metal passes through the shape defining member, whereinthe shape defining member is set near a molten metal surface of the molten metal held by the holding furnace, and the shape defining member is able to be switched between a joined state and a partitioned state.2. The up-drawing continuous casting apparatus according to claim 1 , further comprising:a molten metal cutter inserted into the molten metal that has passed through the shape defining member, in a case where the shape defining member is in the partitioned state.3. The up-drawing continuous casting apparatus according to claim 2 , whereina pair of the molten metal cutters is arranged so as to face each other through the molten metal that has passed through the shape defining member, on a parting line on which the shape defining member is partitioned.4. The up-drawing continuous casting apparatus according to claim 1 , wherein the shape defining member includes an inner shape defining member and an outer shape defining member claim 1 , andthe casting to be cast has a hollow structure.5. The up-drawing continuous casting apparatus according to claim 1 , further comprising:a cooling part that cools and solidifies the molten metal that has passed through the shape defining member.6. The up-drawing continuous ...

PULLING-UP-TYPE CONTINUOUS CASTING APPARATUS AND PULLING-UP-TYPE CONTINUOUS CASTING METHOD

A pulling-up-type continuous casting apparatus according to an aspect of the present invention includes a holding furnace that holds molten metal, and a shape defining member disposed above a molten-metal surface of the molten metal held in the holding furnace, the shape defining member being configured to define a cross-sectional shape of a cast-metal article to be cast as molten metal passes through an opening formed in the shape defining member. The opening is formed in such a manner that a size of the opening on a top surface of the shape defining member is larger than that on a bottom surface of the shape defining member. With this configuration, a cast-metal article having excellent surface quality can be produced even when molten metal is drawn up in an oblique direction. 1. A pulling-up-type continuous casting apparatus comprising:a holding furnace that holds molten metal; anda shape defining member disposed above a molten-metal surface of the molten metal held in the holding furnace, the shape defining member being configured to define a cross-sectional shape of a cast-metal article to be cast as the molten metal passes through an opening formed in the shape defining member, whereinthe opening is formed in such a manner that a size of the opening on a top surface of the shape defining member is larger than that on a bottom surface of the shape defining member.2. The pulling-up-type continuous casting apparatus according to claim 1 , wherein a cut-out or an inclined part is formed on a periphery of the opening on the top surface of the shape defining member.3. The pulling-up-type continuous casting apparatus according to claim 1 , further comprising:an image pickup unit that takes an image of the molten metal that has passed through the shape defining member; andan image analysis unit that detects a fluctuation on the molten metal from the image and determines a solidification interface based on presence/absence of the fluctuation, whereina shape of the ...

METHOD FOR CONTINUOUSLY CASTING SLAB CONTAINING TITANIUM OR TITANIUM ALLOY

The present invention provides a method for casting a slab having a good cast surface. The method includes heating the surface of molten metal on a metal inlet side of a mold by a first heat source so that the following formulas: q≧0.87 and c≦11.762q+0.3095 are satisfied where c is a cycle time [sec] of turning movement of the first heat source, and q is an average amount of heat input [MW/m] determined by accumulating an amount of heat input applied by at least the first heat source to the contact region between the upper surface of the slab on the metal inlet side and the mold, along the path of turning movement of the first heat source, and dividing the resultant accumulated value by the cycle time c. 1. A method for continuously casting a slab containing titanium or a titanium alloy by pouring molten metal formed by melting titanium or a titanium alloy into an open mold having a rectangular cross-section where the molten metal is solidified and withdrawn from the bottom of the mold , pouring the molten metal into the mold from one of the paired shorter sides of the mold, and', 'dividing, in a direction of longer sides of the mold, a surface of the molten metal in the mold into a metal inlet side, where the molten metal is poured, and a side opposite the metal inlet side, heating the surface of the molten metal on the metal inlet side of the mold by a first heat source, which is configured to turn in a horizontal plane over the surface of the molten metal on the metal inlet side, and heating the surface of the molten metal on the side opposite the metal inlet side by a second heat source, which is configured to turn in a horizontal plane over the surface of the molten metal on the side opposite the metal inlet side,, 'wherein the method includes'}{'sup': '2', 'wherein the surface of the molten metal on the metal inlet side is heated by the first heat source in the heating step so that the following formulas: q≧0.87 and c≦11.762q+0.3095 are satisfied where c is a ...

METHOD FOR CONTINUOUSLY CASTING INGOT MADE OF TITANIUM OR TITANIUM ALLOY

Disclosed is a continuous casting method in which a melt obtained by melting titanium or a titanium alloy is poured into a bottomless mold and is drawn downward while being solidified, wherein: the surface of the melt in the mold is heated by horizontally moving a plasma torch over the surface of the melt; thermocouples are provided at a plurality of locations along the circumferential direction of the mold; if the temperature of the mold measured by one of the thermocouples is lower than a target temperature, then the output of the plasma torch is increased when the plasma torch comes close to the location where that thermocouple is installed; and if said temperature is higher than the target temperature, then the output of the plasma torch is decreased when the plasma torch comes close to the location where that thermocouple is installed. 1. A method for continuous casting an ingot made of titanium or a titanium alloy by pouring molten metal prepared by melting titanium or a titanium alloy into a bottomless mold and drawing the molten metal downward while being solidified , the method comprising:a heating step, where, while a plasma torch is horizontally moved on the surface of the molten metal in the mold, the surface of the molten metal is heated by plasma arcs generated by the plasma torch;a temperature-measuring step for measuring a temperature of the mold by each of temperature sensors provided in a plurality of positions of the mold along the circumferential direction of the mold; anda heat input quantity control step for controlling heat input quantity per unit area applied from the plasma torch to the surface of the molten metal based on the temperature of the mold measured by the temperature sensors and a target temperature preset in each of the temperature sensors.2. The method for continuous casting an ingot made of titanium or a titanium alloy according to claim 1 , wherein:if the temperature of the mold measured by any of the temperature sensors is ...

PULLING-UP-TYPE CONTINUOUS CASTING APPARATUS AND PULLING-UP-TYPE CONTINUOUS CASTING METHOD

A pulling-up-type continuous casting apparatus according to an aspect of the present invention includes a molten-metal holding furnace that holds molten metal, a shape defining member disposed in a vicinity of a molten-metal surface in the molten-metal holding furnace, the shape defining member being configured to define a cross-sectional shape of a cast-metal article to be cast as the held molten metal passes through the shape defining member, and an actuator that applies a pressure to the molten metal held in the molten-metal holding furnace and thereby makes the held molten metal pass through the shape defining member. 1. A pulling-up-type continuous casting apparatus comprising:a holding furnace that holds molten metal;a shape defining member disposed in a vicinity of a molten-metal surface of the molten metal, the shape defining member being configured to define a cross-sectional shape of a cast-metal article to be cast as the molten metal passes through the shape defining member; anda pressurization device that applies a pressure to the molten metal held in the holding furnace and thereby makes the molten metal pass through the shape defining member.2. The pulling-up-type continuous casting apparatus according to claim 1 , wherein the pressurization device applies a pressure to the molten metal held in the holding furnace by moving the shape defining member into the molten metal held in the holding furnace.3. The pulling-up-type continuous casting apparatus according to claim 1 , wherein the pressurization device comprises:an enclosed vessel that hermetically encloses the molten metal held in the holding furnace; anda pressurization unit that feeds a fluid into the enclosed vessel and thereby applies a pressure to the molten metal held in the holding furnace.4. The pulling-up-type continuous casting apparatus according to claim 3 , whereinthe pressurization device further comprises a stalk extending from the shape defining member to the molten-metal surface of ...

PULLING-UP-TYPE CONTINUOUS CASTING METHOD AND PULLING-UP-TYPE CONTINUOUS CASTING APPARATUS

A pulling-up-type continuous casting method according to an aspect of the present invention includes disposing a shape defining member () above a molten-metal surface of molten metal (M) held in a holding furnace (), the shape defining member () being configured to define a cross-sectional shape of a cast-metal article (M) to be cast, submerging a starter (ST) into the molten metal (M) while making the starter (ST) pass through the shape defining member (), and pulling up the molten metal (M) by pulling up the starter (ST) while making the molten metal (M) pass through the shape defining member () after a temperature of the shape defining member () reaches a predetermined reference temperature. The reference temperature is equal to or higher than a solidification completion temperature of the molten metal (M). 111-. (canceled)12. A pulling-up-type continuous casting method comprising:disposing a shape defining member above a molten-metal surface of molten metal held in a holding furnace, the shape defining member being configured to define a cross-sectional shape of a cast-metal article to be cast;submerging a starter into the molten metal while making the starter pass through the shape defining member; andpulling up the molten metal by pulling up the starter while making the molten metal pass through the shape defining member after a temperature of the shape defining member reaches a predetermined reference temperature, whereinthe reference temperature is equal to or higher than a solidification completion temperature of the molten metal andwherein the temperature of the shape defining member is measured by a contact-type temperature sensor fixed on a top-side main surface of the shape defining member.13. The pulling-up-type continuous casting method according to claim 12 , wherein the reference temperature is equal to or higher than a solidification start temperature of the molten metal.14. The pulling-up-type continuous casting method according to claim 12 , ...

PRODUCTION METHOD AND PRODUCTION APPARATUS OF CONTINUOUSLY CAST METAL ROD

A method of producing a continuously cast metal rod capable of producing a high-quality continuously cast material is provided. In the method of producing a continuously cast metal rod, a cooling liquid is supplied to each of outer peripheral surfaces of a plurality of ingots extracted from a plurality of molds in parallel to cool each of the plurality of ingots. In a predetermined ingot, the number of adjacent ingots is the number of other ingots arranged around the predetermined so as to face the predetermined ingot, and an ingot small in the number of adjacent ingots is cooled with weak cooling in which the degree of cooling by the cooling liquid is reduced with respect to an ingot large in the number of adjacent ingots. 1. A method of producing a continuously cast metal rod in which a cooling liquid is supplied to each of outer peripheral surfaces of a plurality of ingots extracted from a plurality of molds in parallel to cool each of the plurality of ingots ,wherein when a number of other ingots arranged around a predetermined ingot so as to face the predetermined ingot is defined as a number of adjacent ingots, an ingot smaller in the number of adjacent ingots is cooled with weak cooling in which a degree of cooling by the cooling liquid is reduced with respect to an ingot larger in the number of adjacent ingots.2. The method of producing a continuously cast metal rod as recited in claim 1 ,wherein a supply quantity of the cooling liquid to the ingot smaller in the number of adjacent ingots is set to be less than a supply quantity of a cooling liquid to the ingot larger in the number of adjacent ingots.3. The method of producing a continuously cast metal rod as recited in claim 1 ,wherein supply pressure of a cooling liquid to the ingot smaller in the number of adjacent ingots is set to be lower than supply pressure of a cooling liquid to the ingot larger in the number of adjacent ingots.4. The method of producing a continuously cast metal rod as recited in ...

METHOD AND SYSTEM FOR SENSING INGOT POSITION IN REDUCED CROSS-SECTIONAL AREA MOLDS

A system and method for sensing the position of an ingot within a segmented mold of a vacuum metallurgical system. An inductive sensory system measures the variations in current between a power source and load of an induction heating coil. The system and method is particularly suitable for determining the position of an ingot within a melting system mold where the mold has a relatively reduced or small cross-sectional area. 1. A vacuum metallurgical system comprising:a segmented mold having an input end and an extraction end, configured to receive and cast a molten metal or alloy into an ingot;a primary heating induction coil positioned at least in part around the segmented mold and configured to induce heat in an interior region of the segmented mold;an heating power supply electrically coupled to and powering the primary heating induction coil;a tuning capacitor configured to tune the electrical circuit comprising at least the primary heating induction coil, the segmented mold, and the power supply, and further configured to optimize a power level for melting metal or alloy within the segmented mold;at least one sense coil positioned at least in part around an electrical conductor between the tuning capacitor and the primary heating induction coil;an ingot position actuator positioned to support and move the ingot and/or molten metal or alloy within the segmented mold; andan ingot position controller operatively coupled to at least both the at least one sense coil and the ingot position actuator, and configured to instruct the ingot position actuator to move molten metal or alloy within the segmented mold.2. The system according to claim 1 , further comprising a material feed configured to provide metal and/or alloy in either or both of solid or molten form to the input end of the segmented mold.3. The system according to claim 2 , wherein the material feed further comprises:a crucible positioned proximate to the input end of the segmented mold and configured to ...

CONTINUOUS CASTING METHOD FOR SLAB MADE OF TITANIUM OR TITANIUM ALLOY

A continuous casting method in which a molten metal obtained by melting titanium or a titanium alloy is injected into a bottomless mold having a rectangular cross-section and withdrawn downward while being caused to solidify, wherein a plasma torch () is caused to rotate in the horizontal direction above the surface of the molten metal () in the mold (), and a horizontally rotating flow is generated by electromagnetic stirring on at least the surface of the molten metal () in the mold (). It is thereby possible to cast a slab in which the casting surface condition is excellent. 1. A continuous casting method for continuously casting a slab made of titanium or a titanium alloy by injecting molten metal having titanium or a titanium alloy melted therein into a bottomless mold having a rectangular cross section and withdrawing the molten metal downward while being solidified ,wherein a plasma torch is configured to horizontally rotate on the surface of the molten metal in the mold, anda horizontally rotating flow is generated by electromagnetic stirring at least on the surface of the molten metal in the mold.20. The continuous casting method for the slab made of titanium or a titanium alloy according to claim 1 , wherein claim 1 , when a length of a long side of the slab is denoted as L and a coordinate axis x is set in the long side direction of the slab claim 1 , where the origin lies at the central part thereof claim 1 , in a vicinity of mold walls at long side parts of the mold claim 1 , absolute values of average values of flow rates in the x-axis direction at the surface of the molten metal located in a range of −2 L/5≦x≦2 L/5 are set to 300 mm/sec or more.3. The continuous casting method for the slab made of titanium or a titanium alloy according to claim 2 , wherein the vicinity of the mold walls at the long side parts of the mold is a location 10 mm away from the mold walls at the long side parts of the mold.4. The continuous casting method for the slab made ...

Casting Mould for Casting Steel Melt

A casting mould for casting steel melt into a continuously drawn strand is provided herein. A surface texture is formed on at least one inner surface of the casting mould facing towards the melt to be cast. The surface texture extends at least over region of the casting mould which, during operation, is wetted with slag floating on the melt that has been poured into the casting mould. The casting mould allows optimum solidification behaviour in the region of the casting mould that is critical in terms of the risk of crack formation. The surface texture is designed as a closed structure with self-contained, randomly distributed indentations. 1. A casting mould for casting steel melt into a continuously drawn strand wherein a surface texture is formed on at least one inner surfaces of the casting mould facing towards the melt to be cast , said surface texture extending at least over a region of the casting mould , which , during operation , is wetted with slag floating on the melt that has been poured into the casting mould , wherein the surface texture is designed as a closed structure with completely bordered , randomly distributed indentations.2.The casting mould according to claim 1 , wherein the surface texture extends over an area claim 1 , which claim 1 , measured in a casting direction claim 1 , begins at a distance of at least 10 mm below an upper edge of the mould and ends at a maximum distance of 600 mm.3. The casting mould according to claim 1 , wherein a maximum depth of indentations of the surface texture is 500 μm.4. The casting mould according to claim 1 , wherein a mean roughness index of the surface texture is between 10 μm and 50 μm.5. The casting mould according to claim 1 , wherein a mean roughness depth of the surface texture is between 80 μm and 250 μm.6. The casting mould according to claim 1 , wherein the casting mould has a square or rounded opening cross-section and wherein the surface texture is configured on at least one of the inner ...

METHOD AND PLANT FOR THE PRODUCTION OF LONG INGOTS HAVING A LARGE CROSS-SECTION

Method for producing ingots made of metal having cross-sectional areas of at least 0.10 mof a round, square or rectangular shape through casting of metal or molten steel either directly from the casting ladle () or using a fireproof lined intermediate vessel () in a short, water-cooled ingot mold open downwards () and withdrawing of the solidified ingot () from the same downwardly movable withdrawing tool (), wherein the casting process is continued with a casting rate determined in accordance with the casting cross-section for as long as the desired or maximum ingot length determined by the height of lift of the withdrawing tool () is reached, and additional liquid metal is fed at the end of the regular casting process to an extent that at least the contraction of the metal and steel melt occurring during solidification is balanced during, and whereby after completion of the regular casting process and completion of the ingot withdrawal, the casting process is continued with a casting rate reduced by at least the Factor from the heatable casting ladle () or the heatable intermediate vessel () or a distribution container (), and is reduced progressively or continuously at the end of the solidification to 10% the rate at the start of the additional casting. 1134688101321. Method for producing ingots made of metal having cross-sectional areas of at least 0.10 mof a round , square or rectangular shape through casting of metal or molten steel either directly from the casting ladle () or using a fireproof lined intermediate vessel () in a short , water-cooled ingot mold open downwards () and withdrawing of solidified ingot () from the same downwardly movable withdrawing tool () , wherein the casting process is continued with a casting rate determined in accordance with the casting cross-section for as long as the desired or maximum ingot length determined by the height of lift of the withdrawing tool () is reached , and additional liquid metal is fed at the end of the ...

UP-DRAWING CONTINUOUS CASTING METHOD, UP-DRAWING CONTINUOUS CASTING APPARATUS, AND CONTINUOUS CASTING

An up-drawing continuous casting method according to the present invention is an up-drawing continuous casting method for forming a casting having a predetermined shape by drawing up molten metal held in a holding furnace, and includes: a step of introducing, into the molten metal, a hollow member configured to draw up the molten metal; and a step of flowing inert gas into the hollow member so as to pour the inert gas into the molten metal. The casting is formed by drawing up the molten metal with the hollow member after stopping the flowing of the inert gas into the molten metal. 1: An up-drawing continuous casting method for forming a casting having a predetermined shape by drawing up molten metal held in a holding furnace , the up-drawing continuous casting method comprising:introducing a hollow member into the molten metal, the hollow member configured to draw up the molten metal; andflowing inert gas into the hollow member so as to pour the inert gas into the molten metal.2: The up-drawing continuous casting method according to claim 1 , further comprising:forming the casting by drawing up the molten metal with the hollow member after stopping the flowing of the inert gas into the molten metal.3: The up-drawing continuous casting method according to claim 1 , further comprising:introducing a plurality of hollow members into the molten metal; andflowing the inert gas into at least one of the plurality of hollow members so as to pour the inert gas into the molten metal.4: The up-drawing continuous casting method according to claim 1 , wherein:a mold release agent is provided in at least part of the hollow member.5: The up-drawing continuous casting method according to claim 4 , further comprising:separating the part of the hollow member from the casting formed by the molten metal solidifying, the part of the hollow member being provided with the mold release agent.6: The up-drawing continuous casting method according to claim 1 , further comprising:spraying ...

METHOD, APPARATUS, AND PROGRAM FOR DETERMINING CASTING STATE IN CONTINUOUS CASTING

A heat transfer coefficient α between a solidified shell () and a mold () sandwiching a mold flux layer (), and a heat transfer coefficient β between a molten steel () and the solidified shell () are found by solving an inverse problem by using data from thermocouples (), and a solidified shell thickness and a solidified shell temperature are estimated (solidified state in mold estimation amounts), and further, solidified state in mold evaluation amounts are obtained. It is determined whether a normal casting state or an abnormal casting state by comparing at least one or more kinds of amounts contained in the solidified state in mold estimation amounts and the solidified state in mold evaluation amounts with allowable limit values which are found based on at least one or more kinds of amounts contained in the solidified state in mold estimation amounts and the solidified state in mold evaluation amounts when the abnormal casting occurred in a past and stored in a data storage part. 1. A determination method of a casting state in continuous casting where there are a solidified shell , a mold flux layer , and a mold being respective thermal conductors between a molten steel and cooling water for the mold , the determination method comprising:a first step of finding a heat transfer coefficient α being a heat flux per a unit temperature difference between the solidified shell and the mold sandwiching the mold flux layer and a heat transfer coefficient β between the molten steel and the solidified shell by using data from a plurality of temperature sensing units which are embedded in the mold while shifting positions in a casting direction by solving an inverse problem, and estimating a solidified shell thickness and a solidified shell temperature from the heat transfer coefficient α and the heat transfer coefficient β;a second step of setting the heat transfer coefficient α, the heat transfer coefficient β, the solidified shell estimated thickness, and the solidified ...

Method for continuous-casting slab

A primary object of this invention is to provide a continuous casting method by which a slab of excellent internal quality can be obtained even if the casting speed is changed. In this invention, upon continuous casting with two pairs of the reduction rolls arranged along a casting direction and support rolls arranged between the reduction rolls, when a casting speed is reduced compared to a state where combination of reduction with reduction rolls at a first stage on an unsolidified portion of the slab and reduction with reduction rolls at a second stage on a solidified portion thereof is employed, the combination is switched to combination of reduction with the reduction rolls at the first stage on a portion of the slab at an end of solidification and the reduction with the reduction rolls at the second stage on the solidified portion thereof.

METHOD FOR CONTINUOUS-CASTING SLAB

A primary object of this invention is to provide a continuous casting method by which a slab of excellent internal quality can be obtained even if the casting speed is changed. In this invention, upon continuous casting with two pairs of the reduction rolls arranged along a casting direction and support rolls arranged between the reduction rolls, when a casting speed is reduced compared to a state where combination of reduction with reduction rolls at a first stage on an unsolidified portion of the slab and reduction with reduction rolls at a second stage on a solidified portion thereof is employed, the combination is switched to combination of reduction with the reduction rolls at the first stage on a portion of the slab at an end of solidification and the reduction with the reduction rolls at the second stage on the solidified portion thereof. 14-. (canceled)5. A method for continuous-casting a slab while reduction is carried out on the slab using a continuous casting machine with two stages of reduction rolls , each of the two stages consisting of a pair of the reduction rolls , and being arranged along a casting direction , a diameter of each of the reduction rolls being 1.2 to 2.0 times as much as thickness of the slab just before reduction with corresponding reduction rolls , the continuous casting machine Including the reduction rolls and support rolls , the support rolls being arranged between said two stages of the reduction rolls , the method comprising;increasing a casting speed compared to a state where the slab is cast at a constant speed under combination of reduction with reduction rolls at a first stage on a portion of the slab at an end of solidification, a solid-phase ratio of the portion at a center of the slab in a thickness direction being no less than 0.8 and less than 1.0, and reduction with reduction rolls at a second stage on a solidified portion of the slab, a solid-phase ratio of the solidified portion at the center of the slab in the ...

Method for continuous-casting slab

A primary object of this invention is to provide a continuous casting method by which a slab of excellent internal quality can be obtained even if the casting speed is changed. In this invention, upon continuous casting with two pairs of the reduction rolls arranged along a casting direction and support rolls arranged between the reduction rolls, when a casting speed is reduced compared to a state where combination of reduction with reduction rolls at a first stage on an unsolidified portion of the slab and reduction with reduction rolls at a second stage on a solidified portion thereof is employed, the combination is switched to combination of reduction with the reduction rolls at the first stage on a portion of the slab at an end of solidification and the reduction with the reduction rolls at the second stage on the solidified portion thereof.

Titanium continuous casting device

Provided is a device for titanium continuous casting ( 1 ) capable, even when continuously casting large diameter titanium ingots or titanium alloy ingots, of suppressing component segregation thereof. The device for titanium continuous casting ( 1 ) comprises: a mold ( 3 ) having an upper section having a circular upper opening ( 3 a ) for pouring in molten metal ( 6 ), and a bottom section having a lower opening for continuously drawing ingots ( 11 ); and a plurality of plasma torches ( 4, 5 ) to heat the molten metal in the mold ( 3 ) from the upper opening ( 3 a ) side. The plurality of plasma torches ( 4, 5 ) are disposed so that the amount of heat input to the molten metal ( 6 ) present in the outer circumference enclosing the center of the upper opening ( 3 a ) is greater than the amount of heat input to the molten metal ( 6 ) present in the center of the upper opening ( 3 a ).

CONTINUOUS CASTING INSTALLATION FOR THIN SLABS

An apparatus for the continuous casting of thin slabs, having a strand guide, which is arranged downstream of a permanent mold in the casting direction and which guides the strand output from the permanent mold along a first direction, having an adjoining bending/straightening region, which a mechanism for driving and bending the strand in a second direction, which differs from the first direction, having a cutting device, which cuts the strand into thin slabs, and having a first furnace, which is provided for temperature compensation in the strand, wherein the first furnace extends in an arched manner at least partially over the bending/straightening region and in part along the second direction. 112-. (canceled)13. A device for continuous casting of thin slabs , comprising; a permanent mold; strand guide that , in a casting direction , is disposed behind the permanent mold and guides a strand that is delivered by the permanent mold along a first direction; a bending/straightening region that adjoins said strand guide and has means for driving and bending the strand in a second direction that differs from the first direction; a cutting installation that cuts the strand into thin slabs; and a first furnace provided for equalizing temperature in the strand , wherein the first furnace extends in an arcuate manner at least partially across the bending/straightening region and in part along the second direction.14. The device according to claim 13 , further comprising at least one cooling segment provided in a region of the strand guide for cooling the strand.15. The device according to claim 13 , wherein the first furnace is curved in a range between 10° and 80°.16. The device according to claim 13 , wherein the device is configured for casting thin slabs having a thickness between 35 mm and 90 mm.17. The device according to claim 16 , wherein the device is configured for casting thin slabs having a thickness between 40 mm and 60 mm.18. The device according to claim 13 ...

MOLDING FACILITY

A molding facility in continuous casting enabling the quality of the cast slab to be achieved stably even if improving the productivity, the molding facility provided with a mold for continuous casting use, a first water box and second water box storing cooling water for cooling the mold, an electromagnetic stirring device imparting to molten metal in the mold an electromagnetic force causing a swirling flow to be generated in a horizontal plane, and an electromagnetic brake device imparting to a discharge flow of molten metal to an inside of the mold from a submerged nozzle an electromagnetic force in a direction braking the discharge flow, the first water box, the electromagnetic stirring device, the electromagnetic brake device, and the second water box being placed in that order from above to below at an outside surface of a long side mold plate of the mold so as to fit between a top end and bottom end of the long side mold plate, a core height H of the electromagnetic stirring device and a core height H of the electromagnetic brake device satisfying 0.80≤H/H≤2.33. 412. The molding facility according to claim 1 , wherein the core height H of the electromagnetic stirring device and the core height H of the electromagnetic brake device satisfy the relationship shown in the following numerical formula (2):{'br': None, 'i': H', 'H, '1+2≤500 mm\u2003\u2003(2).'}5. The molding facility according to claim 1 , wherein the electromagnetic brake device is comprised of a split brake.6. The molding facility according to claim 1 , wherein a casting speed is 2.0 m/min or less.7. The molding facility according to claim 2 , wherein a casting speed is 2.2 m/min or less.8. The molding facility according to claim 3 , wherein a casting speed is 2.4 m/min or less. The present invention relates to a molding facility provided with a mold used in continuous casting and an electromagnetic force generating device imparting electromagnetic force to molten metal in that mold.In continuous ...

METHOD FOR MANUFACTURING PRODUCTS MADE OF ALUMINIUM-COPPER-LITHIUM ALLOY WITH IMPROVED FATIGUE PROPERTIES, AND DISTRIBUTOR FOR THIS METHOD

The invention relates to a method for manufacturing an aluminium alloy product including the steps of: creating a bath of liquid metal in an aluminium-copper-lithium alloy, casting said alloy by vertical semi-continuous casting so as to obtain a plate with thickness T and width W such that, during solidification, the hydrogen content of said liquid metal bath (1) is lower than 0.4 ml/100 g, the oxygen content above the liquid surface () is less than 0.5% by volume. 1. Method of manufacturing an aluminum alloy product comprising(a) Preparing a bath of molten alloy metal comprising, as a percentage by weight, Cu: 2.0-6.0; Li: 0.5-2.0; Mg: 0-1.0; Ag: 0-0.7; Zn 0-1.0; and at least one element selected from Zr, Mn, Cr, Sc, Hf and Ti, the amount of said element, if selected, being 0.05 to 0.20 wt % for Zr, 0.05 to 0.8% wt %t for Mn, 0.05 to 0.3 wt % for Cr and for Sc, 0.05 to 0.5 wt % Hf and 0.01 to 0.15% wt % for Ti, Si≦0.1; Fe≦0.1; others ≦0.05 each and ≦0.15 in total, the hydrogen content of said molten metal bath is less than about 0.4 ml/100 g,', 'the oxygen content measured above the liquid surface is less than about 0.5% by volume,', 'a distributor device used for casting is made of fabric comprising essentially carbon; said distributor device comprises a lower face, an upper face defining the opening through which the molten metal is introduced and a wall of substantially rectangular section, the wall comprising two longitudinal portions parallel with width W and two transverse portions parallel with thickness T, said transverse and longitudinal portions being formed from at least two fabrics, a first substantially sealing and semi-rigid fabric ensuring that the distributor device keeps shape during casting, and a second non-sealing fabric allowing the passage and filtration of liquid, said first and second fabrics being bonded to each other without overlap or with overlap and no gap separating them, said first fabric continuously covering at least 30% of the ...

Molding device for continuous casting equipped with agitator

There is provided a molding device for continuous casting equipped with an agitator that reduces the amount of generated heat, is easy to carry out maintenance, is inexpensive, and is easy to use in practice. The molding device for continuous casting equipped with an agitator of the invention receives liquid-phase melt of a conductive material, and a solid-phase cast product is taken out from the molding device through the cooling of the melt. The molding device includes a casting mold and an agitator provided so as to correspond to the casting mold. The casting mold includes a casting space that includes an inlet and an outlet at a central portion of a substantially cylindrical side wall, and a magnetic field generation device receiving chamber that is formed in the side wall and is positioned outside the casting space. The casting mold receives the liquid-phase melt from the inlet into the casting space and discharges the solid-phase cast product from the outlet through the cooling in the casting space. The agitator includes a magnetic field generation device having an electrode unit that includes first and second electrodes supplying current to at least the liquid-phase melt present in the casting space, and a permanent magnet that applies a magnetic field to the liquid-phase melt. The magnetic field generation device is received in the magnetic field generation device receiving chamber of the casting mold, generates magnetic lines of force toward a center in a lateral direction, makes the magnetic lines of force pass through a part of the side wall of the casting mold and reach the casting space, and applies lateral magnetic lines of force, which cross the current, to the melt.

Pulling-up-type continuous casting apparatus and pulling-up-type continuous casting method

A pulling-up-type continuous casting apparatus according to an aspect of the present invention includes a molten-metal holding furnace that holds molten metal, a shape defining member configured to define a cross-sectional shape of a hollowed cast-metal article to be casted as held molten metal drawn from the molten-metal surface passes through the shape defining member, a cooling unit that cools the held molten metal by blowing a cooling gas on an inner peripheral surface of the hollowed cast-metal article near an solidification interface, the drawn molten metal continuously extending to the cast-metal article through the solidification interface, and a blower unit that blows air to a negative pressure area formed in a space between a flow path through which the cooling gas blown from the cooling unit flows and a top surface of the shape defining member.

CONTINUOUS STEEL CASTING METHOD

In the continuous steel casting method of the present invention, a gap between strand support rolls with a strand in a rectangular shape interposed therebetween is increased toward a downstream side in a casting direction to thereby bulge the strand having an unsolidified layer thereinside such that the thickness between long-side surfaces of the strand increases within the range of 0.1% or more and 10% or less of the thickness of the strand inside a mold. A portion of the strand in which the solid phase fraction in a central portion of the strand is within the range of 0.2 or more and less than 0.9 satisfies a prescribed total rolling reduction and a prescribed reduction gradient, and a portion of the strand in which the solid phase fraction is within the range of 0.9 or more satisfies a prescribed total rolling reduction and a prescribed reduction gradient. 1 [{'br': None, 'i': R', '/D, 'sub': t1', '0, '0.5≤≤1.0,\u2003\u2003(1)'}, {'br': None, 'i': 'R', 'sub': 'g1', '0.5≤≤3.0,\u2003\u2003(2)'}, {'br': None, 'i': R', '/D, 'sub': t2', '0, '0.2≤1.0,\u2003\u2003(3)'}, {'br': None, 'i': 'R', 'sub': 'g2', '0.1≤≤1.5,\u2003\u2003(4)'}], 'a total rolling reduction and a reduction gradient satisfy formulas (1) and (2) below when a solid phase fraction in a central portion of the strand is within the range of 0.2 or more and less than 0.9, and the total rolling reduction and the reduction gradient satisfy formulas (3) and (4) below when the solid phase fraction in the central portion of the strand is within the range of 0.9 or more{'sub': t1', '0', 'g1', 't2', 'g2, 'where R: the total rolling reduction (mm) of the strand when the solid phase fraction is within the range of 0.2 or more and less than 0.9, D: the amount of bulging (mm) of the strand, R: the reduction gradient (mm/m) of the strand when the solid phase fraction is within the range of 0.2 or more and less than 0.9, R: the total rolling reduction (mm) of the strand when the solid phase fraction is within the range ...

Способ непрерывного литья для слитка, изготавливаемого из титана или титанового сплава

РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2015 133 468 A (51) МПК B22D 11/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2015133468, 10.01.2014 (71) Заявитель(и): КАБУСИКИ КАЙСЯ КОБЕ СЕЙКО СЕ (КОБЕ СТИЛ, ЛТД.) (JP) Приоритет(ы): (30) Конвенционный приоритет: 11.01.2013 JP 2013-003916 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 11.08.2015 (86) Заявка PCT: (87) Публикация заявки PCT: WO 2014/109399 (17.07.2014) A Адрес для переписки: 129090, Москва, ул. Б. Спасская, 25, строение 3, ООО "Юридическая фирма Городисский и Партнеры" R U (57) Формула изобретения 1. Способ непрерывного литья для непрерывной отливки слитка, выполняемого из титана или титанового сплава, посредством подачи расплавленного металла, содержащего титан или титановый сплав, расплавленный в нем, в бездонную литейную форму и вытягивания металла вниз при затвердевании, в котором посредством управления температурой участка поверхности слитка в области контакта между литейной формой и слитком и/или проходящим тепловым потоком от участка поверхности слитка к литейной форме в области контакта, толщина затвердевшей оболочки, образованной посредством затвердевания расплавленного металла в области контакта, находится в предварительно заданном диапазоне. 2. Способ по п. 1, в котором средние значения температуры TS участка поверхности слитка в области контакта устанавливаются в диапазоне 800°C Подробнее

Способ разливки литийсодержащих алюминиевых сплавов

РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2015 147 907 A (51) МПК C22C 1/02 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2015147907, 11.03.2014 (71) Заявитель(и): АЛЕРИС РОЛЛД ПРОДАКТС ДЖЕРМАНИ ГМБХ (DE) Приоритет(ы): (30) Конвенционный приоритет: 11.04.2013 EP 13163369.5 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 11.11.2015 R U (43) Дата публикации заявки: 16.05.2017 Бюл. № 14 (72) Автор(ы): БРАНДТ Фред (DE) (86) Заявка PCT: (87) Публикация заявки PCT: WO 2014/166683 (16.10.2014) R U (54) СПОСОБ РАЗЛИВКИ ЛИТИЙСОДЕРЖАЩИХ АЛЮМИНИЕВЫХ СПЛАВОВ (57) Формула изобретения 1. Способ литья слитка из алюминиевого сплава, содержащего литий, причем слиток имеет длину L, ширину W и толщину Т, а способ включает этапы: (a) получение по меньшей мере двух расплавленных сплавов на основе алюминия в отдельных печах, причем первого сплава - с составом А, который не содержит лития в качестве целевого легирующего элемента, а второго сплава - с составом В, который содержит литий в качестве целевого легирующего элемента; (b) перенос первого сплава по лотку для транспортировки металла из печи на станцию разливки; (c) инициирование начала отливки слитка и разливки первого сплава до требуемой длины L1 слитка в направлении разливки; (d) затем перенос второго сплава по лотку для транспортировки металла из печи на станцию разливки при одновременном прекращении переноса первого сплава на упомянутую станцию разливки; (e) разливка второго сплава от концевой поверхности отлитого первого сплава на длине L1 до дополнительной требуемой длины L2 в направлении разливки; (f) обрезка отлитого слитка с его нижнего конца на длине, которая больше или равна отлитой длине L1. 2. Способ по п. 1, причем упомянутый этап (с) включает литье в кристаллизатор с прямым охлаждением в вертикальном направлении. Стр.: 1 A 2 0 1 5 1 4 7 9 0 7 A Адрес для переписки: 129090, Москва, ул. Б. Спасская, 25, стр. 3, ООО "Юридическая фирма Городисский и ...

Способ непрерывного литья слитка из титана или титанового сплава

РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2015 135 846 A (51) МПК B22D 11/041 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2015135846, 23.01.2014 (71) Заявитель(и): КАБУСИКИ КАЙСЯ КОБЕ СЕЙКО СЕ (КОБЕ СТИЛ, ЛТД.) (JP) Приоритет(ы): (30) Конвенционный приоритет: 25.01.2013 JP 2013-012034 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 25.08.2015 (86) Заявка PCT: (87) Публикация заявки PCT: WO 2014/115824 (31.07.2014) A Адрес для переписки: 129090, Москва, ул. Б. Спасская, 25, строение 3, ООО "Юридическая фирма Городисский и Партнеры" R U (57) Формула изобретения 1. Способ непрерывного литья слитка из титана или титанового сплава разливкой расплавленного металла, полученного плавлением титана или титанового сплава, в бездонный кристаллизатор и вытягиванием расплавленного металла вниз по мере затвердевания, причем способ включает: стадию нагревания, где в то время как плазменная горелка горизонтально перемещается на поверхности расплавленного металла в кристаллизаторе, поверхность расплавленного металла нагревают плазменными дугами, создаваемыми плазменной горелкой; стадию измерения температуры, на которой измеряют температуру кристаллизатора каждым из температурных датчиков, предусмотренных во множестве положений кристаллизатора вдоль окружного направления кристаллизатора; и стадию управления величиной подвода тепла, на которой управляют величиной подвода тепла на единицу площади, подаваемого от плазменной горелки к поверхности расплавленного металла, на основании температуры кристаллизатора, измеренной температурными датчиками, и целевой температуры, предварительно заданной в каждом из температурных датчиков. 2. Способ непрерывного литья слитка из титана или титанового сплава по п. 1, причем: если температура кристаллизатора, измеренная любым из температурных датчиков, Стр.: 1 A 2 0 1 5 1 3 5 8 4 6 (54) СПОСОБ НЕПРЕРЫВНОГО ЛИТЬЯ СЛИТКА ИЗ ТИТАНА ИЛИ ТИТАНОВОГО СПЛАВА 2 0 1 5 1 3 5 8 4 6 JP 2014 ...

Method of casting lithium containing aluminium alloys

FIELD: metallurgy. SUBSTANCE: invention relates to a foundry and can be used in the continuous casting of aluminium-lithium alloys. At least two aluminium based alloys are obtained in separate furnaces. First alloy has composition A which is free from lithium as purposive alloying element. Second alloy has a composition B which comprises lithium as purposive alloying element. Alloys are transported each in their own trough from the furnaces to the casting station. First, the alloy of composition A is cast to ingot length L1 in the casting direction. After establishing continuous casting conditions, the casting of the alloy of composition A is stopped and the alloy of composition B is poured from the end surface of the cast alloy of composition A to length L2. Cast ingot is cut from its lower end to a length greater than or equal to cast length L1. EFFECT: avoiding the use of salts when casting aluminium-lithium alloys. 11 cl РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 660 551 C2 (51) МПК B22D 11/10 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК B22D 11/10 (2006.01) (21)(22) Заявка: 2015147907, 11.03.2014 (24) Дата начала отсчета срока действия патента: (73) Патентообладатель(и): АЛЕРИС РОЛЛД ПРОДАКТС ДЖЕРМАНИ ГМБХ (DE) Дата регистрации: 06.07.2018 11.04.2013 EP 13163369.5 (43) Дата публикации заявки: 16.05.2017 Бюл. № 14 5415220 A1, 16.05.1995. RU 2381865 C1, 20.02.2010. RU 2038910 C1, 09.07.1995. RU 1721929 C, 30.07.1994. SU 1526030 A1, 30.06.1994. (45) Опубликовано: 06.07.2018 Бюл. № 19 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 11.11.2015 2 6 6 0 5 5 1 (56) Список документов, цитированных в отчете о поиске: US 4582118 A1, 15.04.1986. US Приоритет(ы): (30) Конвенционный приоритет: R U 11.03.2014 (72) Автор(ы): БРАНДТ, Фред (DE) EP 2014/054618 (11.03.2014) C 2 C 2 (86) Заявка PCT: (87) Публикация заявки PCT: R U 2 6 6 0 5 5 1 WO 2014/166683 (16.10.2014) Адрес для переписки: 129090, Москва ...

Method for continuously casting ingot made of titanium or titanium alloy

In a continuous casting method in which a molten metal in which titanium or a titanium alloy is dissolved is injected into a mold having no bottom and is drawn down while being solidified, the molten metal is heated horizontally while horizontally moving the plasma torch 7 on the molten metal in the mold 2, When the temperature of the mold 2 measured by one of the thermocouples 21 is lower than the target temperature, the thermocouple 21 is disposed at a plurality of locations along the circumferential direction of the mold 2, The output of the plasma torch 7 is increased when the plasma torch 7 is close to the installation site and when the plasma torch 7 is close to the installation site of the thermocouple 21 when the temperature is higher than the target temperature, It is possible to cast an ingot having a good casting surface condition by lowering the output of the casting 7.

Способ получения стального длинномерного проката путем непрерывной разливки и прокатки

Изобретение относится к металлургии. Способ включает разливку жидкой стали в кристаллизатор для непрерывного литья, обеспечивающий равномерное охлаждение и рост корочки, регулирование температуры сортовых заготовок или слитков, подачу отлитых сортовых заготовок или слитков в линию прокатных клетей без дополнительного нагрева. Температурные условия в отливаемой заготовке или слитке как на поверхности, так и в сердцевине соответствуют 1150-1250°С. Для предотвращения термической перегрузки валков прокатных клетей линии прокатного стана предусмотрен регулирующий орган для регулирования притока расплава стали в кристаллизатор. Обеспечивается упрощение конфигурации установки и эксплуатация с меньшими издержками. 6 з.п. ф-лы, 1 ил. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 484 921 (13) C2 (51) МПК B22D 11/12 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2010107172/02, 17.07.2008 (24) Дата начала отсчета срока действия патента: 17.07.2008 (73) Патентообладатель(и): СМС КОНКАСТ АГ (CH) R U Приоритет(ы): (30) Конвенционный приоритет: 27.07.2007 EP 07014841.6 (72) Автор(ы): КАВА Франц (CH) (43) Дата публикации заявки: 10.09.2011 Бюл. № 25 2 4 8 4 9 2 1 (45) Опубликовано: 20.06.2013 Бюл. № 17 (56) Список документов, цитированных в отчете о поиске: JP 1048609 А, 23.02.1989. ЕР 0498296 А2, 30.01.1992. SU 1695822 A3, 30.11.1991. ЕР 1466682 A1, 12.03.2004. ЕР 0834363 А2, 19.09.1997. 2 4 8 4 9 2 1 R U (86) Заявка PCT: EP 2008/005864 (17.07.2008) C 2 C 2 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 27.02.2010 (87) Публикация заявки РСТ: WO 2009/015782 (05.02.2009) Адрес для переписки: 129090, Москва, ул. Б. Спасская, 25, стр.3, ООО "Юридическая фирма Городисский и Партнеры", пат.пов. А.В. Мицу, рег.№ 364 (54) СПОСОБ ПОЛУЧЕНИЯ СТАЛЬНОГО ДЛИННОМЕРНОГО ПРОКАТА ПУТЕМ НЕПРЕРЫВНОЙ РАЗЛИВКИ И ПРОКАТКИ (57) Реферат: Изобретение относится к металлургии. Способ включает разливку жидкой стали в кристаллизатор для ...

Method of continuous casting for titanium or titanium alloy ingot

FIELD: metallurgy. SUBSTANCE: invention refers to metallurgy. Method involves feed of molten titanium or titanium alloy into crystalliser and drawing an ingot down during hardening. Thickness of hardened ingot shell in the contact area (16) between casting mould (2) and ingot (11) is maintained within predefined range by controlling temperature (T S ) of a site (11a) in contact area (16) and/or by transient heat flow (q) from site (11a) towards casting mould (2). Mean temperature of ingot surface site in the contact area is set within 800 °C<T S <1250 °C range. EFFECT: improved quality of ingot surface. 4 cl, 10 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 613 253 C2 (51) МПК B22D 11/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ФОРМУЛА (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ 2015133468, 10.01.2014 (24) Дата начала отсчета срока действия патента: 10.01.2014 Дата регистрации: Приоритет(ы): (30) Конвенционный приоритет: 11.01.2013 JP 2013-003916 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 11.08.2015 (56) Список документов, цитированных в отчете о поиске: WO2012115272A1, 30.08.2012. JP03-05247A, 06.03.1991. WO 2012144561A1, 26.10.2012. RU 2383636C2, 10.03.2010. (86) Заявка PCT: JP 2014/050358 (10.01.2014) (87) Публикация заявки PCT: 2 6 1 3 2 5 3 (45) Опубликовано: 15.03.2017 Бюл. № 8 (73) Патентообладатель(и): КАБУСИКИ КАЙСЯ КОБЕ СЕЙКО СЕ (КОБЕ СТИЛ, ЛТД.) (JP) (43) Дата публикации заявки: 17.02.2017 Бюл. № 5 R U 15.03.2017 (72) Автор(ы): КУРОСАВА, Еисуке (JP), НАКАОКА, Такехиро (JP), ЦУЦУМИ, Казуюки (JP), ОЯМА, Хидето (JP), КАНАХАСИ, Хидетака (JP), ИСИДА, Хитоси (JP), ТАКАХАСИ, Даики (JP), МАЦУВАКА, Дайсуке (JP) 2 6 1 3 2 5 3 R U Адрес для переписки: 129090, Москва, ул. Б. Спасская, 25, строение 3, ООО "Юридическая фирма Городисский и Партнеры" (54) СПОСОБ НЕПРЕРЫВНОГО ЛИТЬЯ ДЛЯ СЛИТКА, ИЗГОТАВЛИВАЕМОГО ИЗ ТИТАНА ИЛИ ТИТАНОВОГО СПЛАВА (57) Формула изобретения 1. Способ непрерывного литья для ...

Steel plant with multiple co-rolling lines and corresponding method of production

FIELD: foundry.SUBSTANCE: invention can be used at a plant for combined continuous casting and rolling of long metal products. Device comprises single feed apparatus (14) for discharging molten metal, continuous casting machine (11) and rolling mill (12). Casting machine (11) has at least two casting lines (11a, 11b), and rolling mill (12) has at least two rolling lines (12a, 12b). Central control device (36) independently and autonomously controls the operation of unloading device (16) of each of casting lines (11a, 11b) and device (32, 132), which regulates the flow of metal from feed apparatus (14) to corresponding crystallisers (29a, 29b) of casting lines (11a, 11b).EFFECT: selective variation of the casting speed of each casting line (11a, 11b) is ensured independently and autonomously with respect to the other casting lines.8 cl, 4 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 676 113 C2 (51) МПК B21B 1/46 (2006.01) B22D 41/08 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК B21B 1/46 (2006.01); B22D 41/08 (2006.01) (21)(22) Заявка: 2016117286, 03.10.2014 (24) Дата начала отсчета срока действия патента: Дата регистрации: 26.12.2018 04.10.2013 IT UD2013A000128 (43) Дата публикации заявки: 13.11.2017 Бюл. № (56) Список документов, цитированных в отчете о поиске: US 20040079512 A1, 29.04.2004. WO 2012013456 A2, 02.02.2012. JP S5645201 A, 24.04.1981. RU 2271256 С2, 10.03.2006. RU 2335357 С2, 10.10.2008. 32 (45) Опубликовано: 26.12.2018 Бюл. № 36 (86) Заявка PCT: C 2 C 2 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 04.05.2016 IB 2014/065031 (03.10.2014) (87) Публикация заявки PCT: 2 6 7 6 1 1 3 WO 2015/049663 (09.04.2015) R U 2 6 7 6 1 1 3 (73) Патентообладатель(и): ДАНЬЕЛИ И К. ОФФИЧИНЕ МЕККАНИКЕ СПА (IT) Приоритет(ы): (30) Конвенционный приоритет: R U 03.10.2014 (72) Автор(ы): БЕНЕДЕТТИ, Джанпьетро (IT), БОРДИНЬОН, Джузеппе (IT), МУЛИНАРИС, Фабрицио (IT), ПОЛОНИ, Альфредо (IT) Адрес для ...

Submerged nozzle centering apparatus

본 발명은 침지노즐 센터링 장치에 관한 것이다. 본 발명은 몰드(3)의 장변과 단변방향 중앙측에 배치되고, 침지노즐(5)의 외면을 향해 레이저빔을 조사하는 다수개의 레이저빔 발생기(20)와; 상기 몰드(3)의 상부에 구비된 턴디쉬카(15)에 설치되어 상기 레이저빔에 의해 측정된 상기 침지노즐(5)의 설치위치에 따라서 턴디쉬(1) 또는 턴디쉬카(15)를 이동시켜 침지노즐(5)의 위치를 센터링하는 센터링조작부(30,40); 그리고, 상기 레이저빔 발생기(20)에서 조사되는 레이저빔의 길이를 판단하여 상기 센터링조작부(30,40)의 동작을 제어하는 제어수단(50);를 포함한다. 본 발명에 의하면, 침지노즐(5)을 정확하고 신속하게 센터링할 수 있는 것은 물론 침지노즐(5)의 센터링을 항상 일정하게 확보할 수 있으므로 용강의 편류현상을 최소화할 수 있다. 따라서 슬라브의 품질향상을 기대할 수 있는 이점이 있다. The present invention relates to an immersion nozzle centering device. The present invention comprises: a plurality of laser beam generators 20 disposed on the central side of the long side and the short side of the mold 3 and for irradiating a laser beam toward the outer surface of the immersion nozzle 5; The tundish 1 or the tundish car 15 is installed in the tundish car 15 provided on the upper part of the mold 3 according to the installation position of the immersion nozzle 5 measured by the laser beam. Centering operation unit 30, 40 for moving to center the position of the immersion nozzle (5); And, the control means 50 for controlling the operation of the centering operation unit 30, 40 by determining the length of the laser beam irradiated from the laser beam generator 20; includes. According to the present invention, the immersion nozzle 5 can be accurately and quickly centered, and the centering of the immersion nozzle 5 can be secured at all times, thereby minimizing the drift of molten steel. Therefore, there is an advantage that can be expected to improve the quality of the slab. 침지노즐, 센터링, 변동량 측정 Immersion nozzle, centering, fluctuation measurement