СПОСОБ НАНЕСЕНИЯ ЗАЩИТНЫХ ПОКРЫТИЙ НА ПОВЕРХНОСТЬ ЗАГОТОВОК ИЗ ТИТАНА И ЕГО СПЛАВОВ

Изобретение относится к изготовлению конструкций из титановых сплавов и может быть использовано в объемной и листовой штамповке и при термообработке титановых сплавов. Изобретение направлено на улучшение технологических и защитных свойств покрытий. Способ включает очищение от загрязнений поверхности заготовок, механическую обработку, обезжиривание в ацетоне или смывках, обезвоживание в техническом спирте, прогревание заготовок в термопечи при температуре 250-280oС в течение 1,5-2,0 ч для создания на поверхности плотной оксидной пленки, нанесение защитного покрытия и его сушку. Использование изобретения по сравнению с известными техническими решениями позволяет значительно уменьшить содержание газовых примесей в поверхностном слое готовых деталей. 2 табл.

ОБМАЗКА ДЛЯ ЗАЩИТЫ СТАЛЬНЫХ ЗАГОТОВОК ОТ ОКИСЛЕНИЯ

Изобретение относится к области металлургии, в частности к способам защиты от окисления стальных заготовок, и может быть использовано на металлургических и машиностроительных предприятиях. Целью изобретения является увеличение степени защиты стальных заготовок, в том числе заготовок вагонных колес, от окисления во время технологических нагревов, расширение температурного интервала защитного действия обмазки, а также полное сохранение обмазки после нагрева, которая может выполнять роль технологической смазки при дальнейшей обработке заготовок. 1 табл. Сущность изобретения: в состав наносимой обмазки кроме оксида кремния дополнительно вводят натриевое или калиевое стекло (возможно силикатная глыба) и жидкое стекло при следующем соотношении компонентов, мас. % : оксид кремния 15 - 35; стекло 40 - 60; жидкое стекло 15 - 35.

ОБМАЗКА ДЛЯ ЗАЩИТЫ СТАЛЬНЫХ ЗАГОТОВОК ОТ ОКИСЛЕНИЯ

Изобретение относится к металлургии, в частности к способам защиты от окисления стальных заготовок, и может быть использовано на металлургических и машиностроительных предприятиях. Техническим результатам изобретения является увеличение степени защиты стальных заготовок, в том числе заготовок вагонных колес от окисления во время технологических нагревов, расширение температурного интервала защитного действия обмазки, а также самоотславивание и удаление защитной обмазки при обработке заготовок после нагрева. Сущность изобретения заключается в том, что в состав наносимой обмазки кроме оксида кремния дополнительно вводят кремний, натриевое или калиевое стекло (возможно силикатная глыба) и жидкое стекло при следующем соотношении компонентов, мас.S10 44-64; Si 5-14; стекло 10-26; жидкое стекло 10-26. Согласно второму варианту изобретения в состав наносимой обмазки, кроме оксида кремния, дополнительно вводят ферросилиций, натриевое или калиевое стекло (возможно силикатная глыба) и жидкое стекло ...

СОСТАВ ДЛЯ ЗАЩИТЫ МЕТАЛЛА ОТ ОКИСЛЕНИЯ

Изобретение может быть использовано для защиты металла (Ме) от окисления. Состав наносят на горячий Ме (проверено до 1450<198>С). В течение 5-10 с образуется защитная пленка, имеющая хорошую адгезию к Ме, которая не осыпается при транспортировке и кантовке Ме. Также хорошо держится маркировка. Поверхность Ме без трещин. Образование окалины незначительное, до 0,3-0,6 кг/т. Состав для защиты Ме от окисления, содержащий силикат щелочного металла, ингибитор окисления (ИО), воду, дополнительно содержит диоксид кремния, причем в качестве ИО используют окисел Ме из ряда напряжений Ме, имеющих сродство к кислороду большее или равное в сравнении с трехвалентным железом, в сочетании со свободным Ме из этого же ряда и/или в сочетании с графитом при следующем соотношении компонентов, мас.%: силикат щелочного Ме 6 - 25, ИО 20 - 40, диоксид кремния 2 - 12, вода - остальное, а ПО имеет соотношение компонентов: окисел Ме и Ме, причем частное от деления первого на второе равно от 1 до 30, или соотношение ...

СОСТАВ ДЛЯ ЗАЩИТЫ МЕТАЛЛА ОТ ОКИСЛЕНИЯ

Изобретение может быть использовано для защиты металла (Ме) от окисления. Состав наносят на горячий Ме (проверено до 1450<198>С). В течение 5-10 с образуется защитная пленка, имеющая хорошую адгезию к Ме, которая не осыпается при транспортировке и кантовке Ме. Также хорошо держится маркировка. Поверхность Ме без трещин. Образование окалины незначительное, до 0,3-0,6 кг/т. Состав для защиты Ме от окисления, содержащий силикат щелочного металла, ингибитор окисления (ИО), воду, дополнительно содержит диоксид кремния, причем в качестве ИО используют окисел Ме из ряда напряжений Ме, имеющих сродство к кислороду большее или равное в сравнении с трехвалентным железом, в сочетании со свободным Ме из этого же ряда и/или в сочетании с графитом при следующем соотношении компонентов, мас.%: силикат щелочного Ме 6 - 25, ИО 20 - 40, диоксид кремния 2 - 12, вода - остальное, а ПО имеет соотношение компонентов: окисел Ме и Ме, причем частное от деления первого на второе равно от 1 до 30, или соотношение ...

Состав покрытия для защиты стальных слитков от окисления при нагреве

Установка для электролитного нагрева под закалку

Защитное покрытие для предохранения листов электротехнической стали от сваривания при отжиге

Способ предотвращения сваривания листовой стали в процессе термообработки

Противоокислительная обмазка

Изобретение относится к термической обработке и может быть применено на машиностроительных и металлургических предприятиях. Целью изобретения является повышение защиты от окисления и обезуглероживания при длительной эксплуатации при 900-1150°С за счет уменьшения пористости. Предлагаемый состав содержащий, мас.%, двуокись кремния 30-45, карбонат натрия 10-15, графит 35-45, оксид хрома 5-10, обеспечивает защиту стальных изделий от окисления и обезуглероживания при 900-1050°С и выдержке свыше 10 ч. 1 табл.

Состав для защиты металла от окисления при нагреве

Состав для защиты металла от окисления

СОСТАВ ДЛЯ ЗАЩИТЫ МЕТАЛЛА . ОТ ОКИСЛЕНИЯ при высокотемпературной пайке, содержащий кремнийорганический полимер, органический растворитель и алюминиевую пудру, отличающийся тем, что, с целью снижения трудоемкости при нанесении и удалении состава, он дополнительно содержит графит при следукицем соотношении компонентов, мае.%: Кремнийорганичес60-90 кий полимер Алюминиевая 3-15 пудра 5-20 Графит Органический Остальное § растворитель ...

Способ предохранения листов стали от слипания и сваривания при отжиге

Суспензия для покрытия металлических слитков при нагреве

Antioxidans, Verfahren zur Verarbeitung von Stahlmaterial und nach dem Verfahren hergestelltes gewalztes Produkt

Die vorliegende Erfindung betrifft ein Antioxidans, ein Verfahren zur Verarbeitung eines Stahlmaterials und ein gewalztes Produkt, das unter Verwendung des gleichen Verfahrens hergestellt wird, wobei das Verfahren die folgenden Schritte umfasst: Herstellen eines Stahlmaterials; Herstellen eines Antioxidans; Aufbringen des Antioxidans auf die Oberfläche des Stahlmaterials, um einen Antioxidationsfilm durch Schmelzen zu bilden; und thermisches Behandeln des Stahlmaterials mit dem darauf gebildeten Antioxidationsfilm, wodurch die Korngrenzenoxidation an der Oberfläche des Stahlmaterials eingeschränkt werden kann, mit der resultierenden Verringerung von Oberflächendefekten in einem Endprodukt.

Producing steel element comprising zinc alloy coating, comprises stamping out blank from sheet metal coated with zinc alloy, heating stamped-out blank to temperature, and holding blank at this temperature for predetermined time

The method comprises stamping out a blank from a sheet metal coated with zinc or zinc alloy, heating the stamped-out blank in an oven to a temperature, holding the blank at this temperature for a predetermined time to allow the formation of austenite, cooling the blank at a temperature of 500-600[deg] C to achieve a solidification of a zinc layer, transferring the heated blank to a forming tool, forming a steel element in the forming tool, and cooling the blank in the tool at a cooling rate above the critical quenching rate to harden the blank. The method comprises stamping out a blank from a sheet metal coated with zinc or zinc alloy, heating the stamped-out blank in an oven to a temperature, holding the blank at this temperature for a predetermined time to allow the formation of austenite, cooling the blank at a temperature of 500-600[deg] C to achieve a solidification of a zinc layer, transferring the heated blank to a forming tool, forming a steel element in the forming tool, and cooling ...

Improvements in the shaping of heavy metals

In the hot working of heavy metals such as by piercing, rolling or drawing, a lubricating and oxidation preventing powder mixture is used which forms on the hot finished workpiece a uniform anti-oxidation readily removable non-vitreous layer; the mixture comprises at least 0.5% by weight of crystalline components substantially all of space-lattice structure of which all solid components are of powder form and at least one component remaining solid during working. Preferably the mixture includes a crystalline portion containing crystalline metallic oxides, including the oxide of the metal workpiece, which have an equal or greater affinity for oxygen than the workpiece metal and melting points above the working temperature, and another portion which is primarily crystalline consisting of substances which do not give off oxygen and have melting points close to or less than the working temperature. For drawing operations the mixture has no components which melt during working, but for other ...

Improved coatings for titanium bodies

... 1,127,566. Enamels and enamelling. CONTIMET G.m.b.H. 24 May, 1967, No. 24230/67. Addition.to 1,075,887. Heading C1M. [Also in Division B2] A titanium or titanium base alloy body has a surface coating which essentially consists of potassium silicate and finely divided, aluminium and is such as: form an effective glaze when working the body at temperatures of the order of 1800‹ to 2400‹ F. The body has a. surface coating to protect the surface from atmospheric oxidation during heat treatment thereof, the coating being formed by application of an intimate mixture consisting essentially of (a) from 3 to 6 parts by weight of an aqueous solution of potassium silicate which may have a viscosity of 30 to 40 degrees BÚ, (b) 3 to 8 parts by weight of aluminium powder, and (c) from ¢ to 2 parts by weight of sand; theaqueous solution, may be present in a. proportion of from. 1 : 1 to 1 : 2À5 of the sand.

PROCEDURE FOR THE PROTECTION OF A HIGH-MELTING METAL

PROCEDURE FOR THE COOLING WITH LOW DEFORMATION OF METALLURGICAL ARTICLES.

Procedure for the thermal treatment of metal bands

PROCEDURE FOR THE PRODUCTION OF STEEL PRODUCTS, PREFERABLY OF BANDERN AND SHEET METALS

PROCEDURE FOR THE ADHESIVE-FREE GLOWING OF NON-FERROUS METAL PARTS

Means for the prevention of the surface oxidation

Procedure for eliminating magnetic aging and improving the Watt losses of dynamo-electric machines

METHOD FOR PROTECTING A HOT ROLLED FERROUS PRODUCT, AND RESULTANT PRODUCT

SILICON STEEL AND PROCESSING THEREFORE

A CURABLE PROTECTIVE COATING COMPOSITION

A self-collapsed protective coating composition and use thereof are provided. The coating composition for hot stamping of steel material comprises a film forming binder, a pigment, a stripping agent, and a solvent. The coating composition can be used in the manufacturing of hot stamped steel material, which can protect the surface of steel material from oxide scale during hot stamping process and provide ease for subsequent welding.

Verfahren zum Schutz der Werkzeuge beim Strangpressen und zum Schutz des ausgepresten Stranges

Verfahren zum Stützen von heissem Metall während seiner Abkühlung

Procédé de fabrication d'une matière métallique stratifiée, moyen pour la mise en oeuvre ainsi que produit obtenu selon ce procédé

Vorrichtung an Triebfahrzeugen zur Verminderung der durch die Zugkräfte hervorgerufenen Achsentlastungen

Verfahren zur Abdichtung des von einem heissen Strang durchlaufenen Innenraumes einer Behandlungsanlage, Vorrichtung zur Durchführung des Verfahrens und Anwendung des Verfahrens

Verfahren zur Herstellung von Platten mittels Dickenreduzierung

A METHOD FOR SURFACE TREATMENT OF CAST IRON ARTICLES

СПОСІБ ПОВЕРХНЕВОЇ ОБРОБКИ ВИРОБІВ З ЧАВУНУ

Винахід відноситься до галузі металургії, а саме до хіміко-термічної обробки виробів з чавуну. Спосіб поверхневої обробки виробів з чавуну, переважно з чавуну з графітом, включає насичення поверхні виробу вуглецевмісною плазмою. Насичення ведуть до одержання ледебуритної структури, орієнтованої перпендикулярно до поверхні виробу, і до насичення вуглецем не більше за 4,2 %. Винахід забезпечує підвищення зносостійкості виробів з чавуну в корозійних середовищах.

СПОСІБ ВИГОТОВЛЕННЯ МЕХАНІЧНО ОБРОБЛЕНОЇ МЕТАЛЕВОЇ ДЕТАЛІ, МЕХАНІЧНО ОБРОБЛЕНА МЕТАЛЕВА ДЕТАЛЬ, ЗАСТОСУВАННЯ МЕТАЛЕВОЇ ДЕТАЛІ ТА ЕЛЕМЕНТ КОНСТРУКЦІЇ

Даний винахід належить до способу виготовлення механічно обробленої металевої деталі, який включає в себе виготовлення металевого листа, попередню механічну обробку згаданого листа з однієї або двох сторін для одержання попередньо механічно обробленої заготовки, термообробку згаданої попередньо механічно обробленої заготовки на твердий розчин, обробку загартуванням, з необов'язковим подальшим контрольованим розтягненням. Така деталь може бути застосована як елемент конструкції в авіаційній промисловості.

КОМПОЗИЦИЯ ДЛЯ получения защитного ПОКРЫТИЯ СТАЛЕЙ

Композиция включает стекло боросиликатное, карбоксилметилцеллюлозу и добавки. В качестве добавок композиция содержит высококремнеземистый тонкоизмельченный компонент и пылевидные отходы шамотного производства.

СКЛАД ПОКРИТТЯ ДЛЯ ЗАХИСТУ РЕСОРНОЇ СТАЛІ ВІД ЗНЕВУГЛЕЦЮВАННЯ ПРИ ТЕРМООБРОБЦІ

Склад покриття для захисту ресорної сталі від зневуглецювання при термообробці містить двоокис кремнію, оксид алюмінію, оксид магнію, борний ангідрид і зв'язуюче. Як оксиди містить оксиди з домішками, а як зв'язуюче містить рідке скло.

Method for hardening metal workpieces.

Séparateur de recuit pour lames d'acier au silicium à grain orienté.

Un séparateur de recuit utilisable pour produire une lame d'acier au silicium à grain orienté ayant d'excellentes propriétés magnétiques, comprend un oxyde de magnésium non hydratable qui a été grillé à une température de 1 300 degrés C ou plus, de préférence de 1 300 à 2 100 degrés C, et qui se présente sous la forme de fines particules, dont 70 % en poids ont une taille de 5 microns ou moins, et optionnellement, de l'hydroxyde de magnésium dans une proportion de 1 à 100 % rapportée au poids de l'oxyde de magnésium et/ou un composé d'aluminium dans une proportion de 0,05 à 10 % rapportée au poids de l'oxyde de magnésium ...

Process for the deposit uninterrupted of a protective coating on products of forging mill, rolling, or foundry

Improvement with the spinning, the forging and the heat treatment of metals at high temperature

A METHOD FOR OBTAINING STRIP IRON OR SHEETS Of STEEL FREE FROM GRAPHITE OF SURFACE IN ORDER TO COVER THEM BY a LAYER OF METAL

METHOD OF FORMING AN ASSEMBLY OF ROD-SHAPED WORKPIECE IN A HOLDER FOR HEAT TREATMENT

Protective composition for preventing carburization, nitriding or ae.

HEAT TREATMENT OF FLAT METAL ARTICLES

PROCESS OF HEAT TREATMENT AND HARDENING OF PARTS FORGEES

METHOD OF ENAMELLING THE INTERIOR OF FINNED METAL PIPES

MANUFACTURING SYSTEM FOR ANNEALING SEPARATING AGENT

process for preparing a product of alloyed alumíniolítio for all done it melt and melt welded bond

METHOD FOR PREVENTING SKID MARK

PURPOSE: To reduce the skid marks to be generated in a furnace effectively in the stage of heating steel materials by coating materials for suppressing heating on the parts to be unaffected by skids. CONSTITUTION: The range B where steel materials are affected by skids 2 is predicted as areas 12 where the generation of skid marks are predicted in the stage of heating the steel materials in a heating furnace. Materials for suppressing heating are coated on the top and side surfaces of areas 11 where heating to high temp. is predicted except the areas 12 and the steel materials coated with such materials are charged into the heating furnace. Anti-oxidation agents prepd. by mixing granulated blast furnace slag, SiO2 and Al2O3, etc. are used for said materials and are coated at about 1kg in each 1m2. The average temp. is decreased by the above-mentioned method without the additional decrease in the temp. in the areas where the temp. drops and the skid marks are reduced effectively. COPYRIGHT ...

Verfahren zum Warmwalzen von rostfreiem Stahl und dafür verwendete Zusammensetzungen zur Oberflächenbehandlung

PROCEDURE FOR THE PRODUCTION OF ELECTRIC SHEETS WITH A GLASS COAT

PROCEDURE FOR THE TREATMENT OF STAINLESS STEEL

Transformer volumes cold-rolled and - sheet metals and procedures for the production the same

PROCEDURE FOR THE PRODUCTION OF STAHLBANDERN WITH A METALLIZATION

PROCEDURE FOR THE BLANKGLUHEN AND RECRYSTALLIZATION OF NON-FERROUS METALS

DECARBURISATION PROTECTION OF IRON AND/OR STEEL SURFACES

BERUSSEN FROM WORKPIECES TO THE CHAR-NEUTRAL THERMAL TREATMENT

PROCEDURE FOR SUMMARIZING A MULTIPLICITY OF STABFORMIGER WORK STUCCO, IN PARTICULAR TWIST DRILL, FOR A TRANSPORTATION UNIT FOR THE COMMON HARD ONE OF THE SLOPE ENDS WORK STUCCO BY DIPPING

PROCEDURE FOR THE AVOIDANCE OF ADHESIVES WITH THE GLOWING OF STEEL STRIP

COMPOSITION AND PROCESS FOR ENHANCED PROPERTIES OF FERROUS COMPONENTS

HARD METALLIC MATERIALS, HARD METALLIC COATINGS, METHODS OF PROCESSING METALLIC MATERIALS AND METHODS OF PRODUCING METALLIC COATINGS

The invention includes a method of producing a hard metallic material by forming a mixture containing at least 55% iron and at least one of B, C, Si and P. The mixture is formed into an alloy and cooled to form a metallic material having a hardness of greater than about 9.2 GPa. The invention includes a method of forming a wire by combining a metal strip and a powder. The strip and the powder are rolled to form a wire containing at least 55% iron and from 2-7 additional elements including at least one of C, Si and B. The invention also includes a method of forming a hardened surface on a substrate by processing a solid mass to form a powder, applying the powder to a surface to form a layer containing metallic glass, and converting the glass to a crystalline material having a nanocrystalline grain size.

SURFACE TREATED STEEL SHEET FOR THE USE OF FORMING OPERATION

PROCESS FOR PRODUCING GRAIN-ORIENTED ELECTRICAL STEEL SHEET HAVING BOTH IMPROVED MAGNETIC PROPERTIES AND PROPERTIES OF GLASS FILM

PROCESS FOR PRODUCING GRAIN-ORIENTED ELECTRICAL STEEL SHEET HAVING BOTH IMPROVED MAGNETIC PROPERTIES AND PROPERTIES OF GLASS FILM The present invention provides an annealing separator comprising from 0.05 to 2.0 parts by weight of antimony sulfate based on 100 parts by weight of magnesium oxide, and at least one chloride selected from the group consisting of Sb, Sr, Ti, and Zr chlorides in a chlorine amount of from 5 to 20% by weight based on 100% of the chloride and antimony sulfate, and occasionally comprises Ti oxide in an amount of from 0.5 to 10 parts. The annealing separator is applied on the decarburization annealed strip, and improves both the magnetic properties and properties of glass film, in the production of a grain-oriented electrical steel sheet.

SURFACE TREATMENT METHOD FOR METAL MATERIAL AND MOLD TREATED BY SURFACE TREATMENT METHOD

A surface treatment method for a metal material is provided which includes applying diluted sulfuric acid to a surface of the metal material that is composed primarily of iron, performing a heat treatment on the metal material in the presence of at least one of CO, C02 and organic gas under nitriding conditions under which a nitrided layer is formed in a superficial layer of the metal material after the application of the diluted sulfuric acid to form a carbon film which includes at least one of carbon nanocoils, carbon nanotubes and carbon nanofilaments on a surface of the nitrided layer of the metal material.

PROCESS FOR AVOIDING STICKERS IN THE ANNEALING OF COLD STRIP UNDER HYDROGEN-CONTAINING ATMOSPHERES

When cold strip steel is annealed, diffusion welds, so-called stickers, frequently form on the strip's surface. In order to avoid these, the cold strip, above 600.degree.C (holding time) is coated by oxidation with a thin surface film which prevents sticking. Below 600.degree.C, during the cooling phase, this surface film is removed by reduction. In the case where a protective gas comprising hydrogen is used in an amount of greater than 5%, with the remainder being nitrogen, carbon dioxide is preferably added as an oxidizing agent. The process is controlled via a defined oxygen partial pressure. The reduction is performed via the hydrogen.

ШИХТА БЕЗОБЖИГОВОГО ПОКРЫТИЯ ДЛЯ ЗАЩИТЫ ЛЕГКООКИСЛЯЮЩИХСЯ СТАЛЕЙ

Шихта безобжигового покрытия для защиты легкоокисляющихся сталей включает шамот каолинизированный, карбоксиметилцеллюлозу натрия и глинистую составляющую. С целью повышения защитных от окисления и обезуглероживания свойств покрытия в интервале температур 700-1000°С шихта содержит алюмоборсиликатную стеклофритту с интервалом размягчения 720-810°С и в качестве глинистой составляющей - глину.

Child car seat

Production process of automobile thermal-formed structural component

一种防止高碳钢坯脱碳的涂料

A paint for preventing the decarbonization of high-carbon steel billet when it is heated is prepared from graphite, glass powder, silicate, oxide, water glass as adhesive and water as diluent, and contains C (15-35 wt.%), SiO2 (25-45), CaO (0-15), MgO (0-10), Al2O3 (0-15), R2O (5-20) and water (rest). Its advantages are high effect and adhesion, short solidifying time, and automatic removal after rolled.

Mixing device of MgO coating liquid of orientation silicon steel decarbonization annealed wire

TA9 expansion joint manufacturing method

Oily resistance to high temperature oxidation protection coating and its application and method for production of titanium alloy

Oxidation and decarburization resistant coating powder for high-carbon chromium bearing steel heating process

FREEZING OF PROTECTION AGAINST AN INTENSE, APPLICABLE SOURCE OF HEAT ON TOUSSUPPORTS

Annealing silicon steel sheet or strip - using parting cpd. contg. magnesium oxide and boron oxide as magnesium borate

Cooling hot-rolled products - using selective surface coating to ensure uniform cooling of entire cross-section

Process of heating of steel ingots intended to be forged or extruded

FORMATION OF CHROMIUM?CONTAINING COATINGS ON BOTH SIDES OF STEEL STRIP WITH ONE COATED SIDE HAVING A BRIGHT FINISH

TWO STAGE HEAT TREATMENT PROCESS FOR THE PRODUCTION OF UNALLOYED, COLD?ROLLED ELECTRICAL STEEL

Process for the bright annealing and recrystallization of non-ferrous metals

Process and mould for annealing of metal articles

La présente invention concerne un procédé pour le recuit ou l'hypertrempe de pièces métalliques, par lequel on dispose une pièce à recuire dans un manchon de manière à ménager un espace entre la surface externe dudit tube et la surface interne de ladite pièce, procédé caractérisé en ce qu'on remplit l'espace ainsi ménagé au moyen d'une poudre céramique que l'on compacte jusqu'à isoler la surface externe de ladite pièce de toute atteinte gazeuse corrosive. Elle s'applique plus particulièrement aux tubes cintrés ou multiformés.

MAGNESIA-SILICA COMPLEXES

COMPOSITION OF MAGNESIA TO FORM a COATING OF GLASS ISOLATING ON STEEL WITH SILICON AND ITS PROCESS From OBTAINING

BOUILLIE DE MAGNESIE AQUEUSE POUR LA FORMATION D'UN REVETEMENT DE VERRE ISOLANT SUR DE L'ACIER AU SILICIUM. UNE PROPORTION NOTABLE DE LA MAGNESIE EST INACTIVE (ACTIVITE A L'ACIDE CITRIQUE SUPERIEURE A 200SECONDES), UN COMPOSE DE TYPE PHOSPHATE DECOMPOSABLE EST PRESENT A RAISON DE 2 A 25 EN POIDS, CALCULE EN PO, PAR RAPPORT AU POIDS SEC DE MAGNESIE ET LA CONCENTRATION DE LA BOUILLIE EN MAGNESIE EST D'AU MOINS 0,24GML. LA BOUILLIE RESISTE A LA DECANTATION PENDANT UNE DUREE ALLANT JUSQU'A 10HEURES ET A UNE VISCOSITE SOUHAITABLE POUR L'APPLICATION PAR DES MOYENS CLASSIQUES; LES COMPOSES DE TYPE PHOSPHATE PREFERES SONT LE PHOSPHATE MONOCALCIQUE MONOHYDRATE, LE POLYPHOSPHATE D'AMMONIUM SOLUBLE DANS L'EAU ET LE PHOSPHATE DICALCIQUE DIHYDRATE.

방향성 전기강판용 소둔 분리제 조성물, 및 이를 이용한 방향성 전기강판의 제조방법

... 방향성 전기강판용 소둔 분리제 조성물, 및 이를 이용한 방향성 전기강판의 제조방법에 관한 것으로, 구체적으로는, 마그네슘 산화물 또는 마그네슘 수산화물; 금속 요오드화물; 및 용매;를 포함하는, 방향성 전기강판용 소둔 분리제 조성물, 및 이를 고온 소둔 공정에서 소둔 분리제로 사용하는 방향성 전기강판의 제조 방법을 제공할 수 있다.

METHOD FOR COOLING PROFILE LAMINATES

FORMING METHOD FOR BLACK FILM OF GOOD ADHESION

PURPOSE: To form a black film on the surface of a steel plate, by applying a DC voltage to the steel plate to perform electrolysis in the aqueous solution with carbon black as main components including the caking agent and the electrolyte before the heat treatment process. CONSTITUTION: A steel plate or a band steel is soaked into the processing bath including carbon black as main components, glue, gelatin, CMC, water soluble resin, and so on as the caking agent, and nitric acid salt, sulfuric acid salt, chloride, ammonium salt, and so on of a metal as the electrolyte before the heat treatment process of the steel plate or the band steel. Here, the steel plate or the band steel is used as the cathode, and a proper conductor is used as the anode, and a DC voltage is applied across both electrodes. Otherwise, an AC voltage with a DC current superposed is applied across the steel plate or the band steel and the counter electrode. As the result, a uniform black film of good adhesion is formed ...

СПОСОБ ЗАЩИТЫ НИЗКОУГЛЕРОДИСТОЙ СТАЛИ ОТ ОБЕЗУГЛЕРОЖИВАНИЯ ПРИ ВЫСОКОТЕМПЕРАТУРНОЙ ОБРАБОТКЕ

Изобретение относится к способам защиты изделий при высокотемпературной обработке. Способ заключается в нанесении на поверхность низкоуглеродистой стали с объемным содержанием углерода Co слоя металлического порошка с содержанием углерода C1 и толщиной h, величина которой связана с оптимальным временем tv защиты изделия от обезуглероживания соотношением: , где: D - коэффициент диффузии углерода в металл основы при верхней температурной границе обработки изделия, а y - корень уравнения в котором - интеграл вероятности. 2 табл., 4 ил.

ЗАЩИТНО-СМАЗОЧНЫЙ МАТЕРИАЛ ДЛЯ ТЕРМООБРАБОТКИ И ГОРЯЧЕЙ ДЕФОРМАЦИИ МЕТАЛЛОВ И СПЛАВОВ

Изобретение относится к металлургии, в частности к защитно-смазочным материалам, используемым при термообработке и горячей деформации металлов и сплавов. Может использоваться при термообработке и горячей деформации титана, циркония, сплавов на их основе и сталей. Защитно-смазочный материал для термообработки и горячей деформации заготовок из металлов и сплавов содержит, мас.%: порошок меди 20-70, остальное - жидкое стекло. Материал обеспечивает снижение глубины дефектного слоя, повышение эффективности защиты, а также экономичность за счет простоты нанесения и удаления. 2 ил.

СПОСОБ НАНЕСЕНИЯ ЗАЩИТНЫХ ПОКРЫТИЙ НА ПОВЕРХНОСТЬ ЗАГОТОВОК ИЗ ТИТАНА И ЕГО СПЛАВОВ

Способ нанесения защитных покрытий на поверхность заготовок из титана и его сплавов, включающий механическую очистку, обезжиривание, обезвоживание и сушку поверхности заготовок, нанесение защитного покрытия на поверхность заготовок и его сушку, отличающийся тем, что после обезвоживания заготовку нагревают до температуры 250 - 280oC в течение 1,5 - 2,0 ч для создания на поверхности заготовки плотной оксидной пленки.

СТАЛЬ ДЛЯ ГОРЯЧЕЙ ШТАМПОВКИ ИЛИ ЗАКАЛКИ В ИНСТРУМЕНТЕ, ОБЛАДАЮЩАЯ УЛУЧШЕННОЙ ПЛАСТИЧНОСТЬЮ

Изобретение относится к изготовлению горячекатаных или холоднокатаных деталей. Техническим результатом изобретения является получение детали с гомогенной структурой и однородными механическими свойствами. Для достижения технического результата стальную деталь получают из стали, содержащей, мас.%: С: более или равным 0,040, но менее или равным 0,100; Мn: более или равным 0,80, но менее или равным 2,00; Si: менее или равным 0,30; S: менее или равным 0,005; Р: менее или равным 0,030; Аl: более или равным 0,010, но менее или равным 0,070; Nb: более или равным 0,015, но менее или равным 0,100; Ti: более или равным 0,030, но менее или равным 0,080; N: менее или равным 0,009; Сu: менее или равным 0,100; Ni: менее или равным 0,100; Сr: менее или равным 0,100; Мо: менее или равным 0,100 и Са: менее или равным 0,006, остальное: железо и неизбежные примеси, при этом микроструктура стальной детали состоит, по меньшей мере, из 75% равноосного феррита, мартенсита в количестве не менее 5% и не более 20% ...

СПОСОБ ЗАЩИТЫ ДЕТАЛЕЙ ИЗ СТАЛЕЙ И СПЛАВОВ ПРИ ВЫСОКОТЕМПЕРАТУРНОЙ ОБРАБОТКЕ

Изобретение относится к области термической обработки и может быть использовано для защиты деталей из сталей и сплавов. Для предотвращения образования окалины, снижения глубины окисленного приповерхностного слоя, снижения толщины обезуглероженного слоя и уменьшения потерь легирующих компонентов в деталях из сталей и сплавов детали подвергают высокотемпературной обработке в печи, при этом совместно с деталями в печь вводят комплексное химическое соединение алюминия и хрома с ацетилацетоном в количестве от 5 до 40 г на м3 печи. 3 табл.

ЗАЩИТНО-СМАЗОЧНЫЙ МАТЕРИАЛ ДЛЯ ТЕРМООБРАБОТКИ И ГОРЯЧЕЙ ДЕФОРМАЦИИ МЕТАЛЛОВ И СПЛАВОВ

Защитно-смазочный материал для термообработки и горячей деформации заготовок из металлов и сплавов на основе жидкого стекла с наполнителем, отличающийся тем, что в качестве наполнителя используется порошок меди в количестве 20-70 мас.%, остальное - жидкое стекло.

Защитная обмазка для защиты стальных слитков и заготовок при нагреве от окисления и обезуглероживания

Состав покрытия для защиты изделий и способ обработки изделий

Изобретение относится к средствам защиты от окисления и обезуглероживания молотовых штампов при их нагреве под закалку и может быть использовано при термообработке массивных изделий на машиностроительных и металлургических заводах. Цель - повышение надежности защиты за счет уменьшения привари-ваемости покрытия к поверхности и толщины окисленного слоя. Состав содержит, мас.%: кристаллический графит 0-15; железная окалина 60-65; алюмохромфосфатная связка 10-12; вода-остальное. Способ обработки включает приготовление состава покрытия, нанесение слоем определенной толщины на защищаемую поверхность, сушку и нагрев штампов, причем алюмох- ромфосфатную связку предварительно растворяют в воде, после чего жидкую основу смешивают с порошкообразными компонентами до получения однородной безком- ковой массы, которую наносят на рабочую поверхность штампов равномерным слоем толщиной 0,010-0,015 ихтолщины, при этом штампы устанавливают в печь вверх защитным покрытием. 2 с.п. ф-лы, 2 табл. сл с ...

Состав для защиты электротехнической стали от сваривания при термообработке

Method for producing partially hardened steel components

The invention relates to a method for producing partially hardened steel components in which a blank is subjected to a temperature increase that is sufficient for a quench-hardening and after reaching a desired temperature, the blank is transferred to a forming tool in which the blank is quench-hardened or the blank is cold-formed and the component obtained by the cold-forming is then subjected to a temperature increase. During the heating of the blank or component, absorption masses rest against and/or are spaced with a small gap apart from regions that are intended to have a lower hardness and/or higher ductility; with regard to its expansion and thickness, its thermal conductivity, and its thermal capacity and/or with regard to its emissivity, the absorption mass is dimensioned so that the thermal energy acting on the component in the region to remain ductile flows through the component into the absorption mass.

Strip, Sheet or Blank Suitable for Hot Forming and Process for the Production Thereof

Disclosed is a strip, sheet or blank suitable for hot forming at a temperature of 700° C. or above, including a substrate of hot formable steel, optionally coated with an active corrosion protective coating. The optionally coated steel substrate is provided with a ceramic based coating having a thickness of at most 25 micron. Also disclosed is a process to produce such strip, sheet or blank.

ANNUALING SEPARATION AGENT FOR PRODUCING GRAIN-ORIENTED SILICON STEEL WITH SMOOTH SURFACE AND GOOD MAGNETIC PROPERTY

An annealing separator for manufacturing grain-oriented silicon steel with mirror-like surface having good magnetic performance consists of the composition of which is 77˜98 by wt % of AlOpowder, 1˜8 by wt % of alkaline earth powder, 1˜15 by wt % of alkali metal chloride and/or alkaline earth metal chloride. The annealing separator of the invention can avoid forming a glass-film undercoating on the surface of the steel sheet during high-temperature annealing, and at the same time, the oxide embedded at near-surface of the sheet is removed by means of corrosive reaction of the chloride, so that a produce with smooth surface and stable magnetic performance is obtained.

CARBURIZED STEEL PART HAVING EXCELLENT LOW CYCLE BENDING FATIGUE STRENGTH

A carburized steel part having excellent low cycle bending fatigue strength which is comprised of a steel material which contains, by mass %, C: 0.1 to 0.6%, Si: 0.01 to 1.5%, Mn: 0.3 to 2.0, P: 0.02% or less, S: 0.001 to 0.15%, N: 0.001 to 0.03%, Al: 0.001 to 0.06%, and O: 0.005% or less and has a balance of substantially iron and unavoidable impurities and which is carburized and quenched, and then tempered, which steel part has a surface hardness of HV550 to HV800 and a core hardness of HV400 to HV500. 1. A carburized steel part having excellent low cycle bending fatigue strength which is comprised of a steel material consisting of , by mass % ,C: 0.1 to 0.6%,Si: 0.01 to 1.5%,Mn: 0.3 to 2.0%,P: 0.02% or less,S: 0.001 to 0.15%,N: 0.001 to 0.03%,Al: 0.001 to 0.06%,Ti: 0.01 to 0.2%,B: 0.0002 to 0.005%,Cr: 1.2 to 3.0%,Ca: 0.0002 to 0.005%,O: 0.005% or less andone or both of Nb: 0.01 to 0.2% and V: 0.03 to 0.2%, anda balance of substantially iron and unavoidable impurities, wherein the steel material which is carburized, quenched, and then tempered,wherein said carburized steel part has a surface hardness of HV550 to HV800, and a core hardness of HV400 to HV500.2. The carburized steel part having excellent low cycle bending fatigue strength as set forth in claim 1 , wherein said low cycle bending fatigue strength is 20 kN or more.39-. (canceled)10. The carburized steel part having excellent low cycle bending fatigue strength as set forth in claim 1 , wherein said carburized steel part is a differential gear or transmission gear.11. The carburized steel part having excellent low cycle bending fatigue strength as set forth in claim 2 , wherein said carburized steel part is a differential gear or transmission gear. The present invention relates to a carburized steel part having excellent low cycle bending fatigue strength.Parts for machine structures, differential gears, transmission gears, toothed carburized shafts, and other gears sometimes break at the tooth bases ...

Method and System for Using an Irreversible Thermo-Chromatic Indicator for Quality Assurance of a Part Subjected to Heat Treating

A system and method of verifying that a part is heat treated to strengthen the part. The part is marked with a thermo-chromatic composition before heat treating. The part is then heat treated to strengthen the part and change the color of the thermo-chromatic composition to indicate successful completion of the heat treating process. A detector may act to prevent the inclusion of a non-heat treated part in an assembly by disabling an assembly tool. A controller may also provide data related to the completion of the heat treating process to be recorded in a database. 1. A method of manufacturing a part that is strengthened by heat treating , comprising:forming the part;marking the part in a predetermined location with an irreversible thermo-chromatic composition;heating the part to increase the strength of the part and to change the irreversible thermo-chromatic composition from a first color to a second color;detecting whether the thermo-chromatic composition is the first color or the second color after the heating step; andcontrolling a subsequent manufacturing process based upon whether the thermo-chromatic composition is the first color or the second color.2. The method of wherein the thermo-chromatic composition is an irreversible thermo-chromatic ink that has a first color that is white and a second color that is a darker color.3. The method of wherein the step of marking the part is performed by spraying the part in a location that is visible during the detecting step.4. The method of wherein the step of heating the part is performed by exposing the parts to convective air at 170° C.-240° C. for more than 20 minutes.5. The method of wherein the step of forming the part is selected from a group consisting of:stamping the part in a sheet metal forming process,extruding the part,forging, andhydro-forming the part.6. The method of wherein the step of detecting whether the irreversible thermo-chromatic composition is the first color or the second color further ...

Methods for the production of clad steel products

Billets and methods for manufacturing them are disclosed. The billets include a cladding member including an alloy selected from the group including stainless steel, nickel-chrome, nickel-copper, and copper-nickel alloys, and a steel body that is positioned so that it has an interface with the cladding member, the steel body having a formation in which the scavenging metal is located and elements being provided for separating the scavenging metal from the cladding member at the interface.

METHOD FOR INCREASING THE PLASTIC DEFORMABILITY OF A WORKPIECE USING AN ABSORPTION AGENT

A method for at least locally increasing the plasticity of a metal workpiece, which contains in particular an aluminum alloy, wherein the workpiece is irradiated in order to increase its temperature, and an associated production device, is provided. In order to be able to more quickly and thoroughly heat specific regions of a metal workpiece than other regions in a targeted manner, wherein it is possible to heat these regions more quickly and thoroughly with the same radiation output, while the surface of the workpiece remains largely unaffected, it is proposed that an absorbent be applied at least locally to the workpiece prior to irradiation thereof, wherein the degree of absorption of the absorbent for the radiation is greater than the degree of absorption of the workpiece for the radiation. 1. A method for at least locally increasing the plasticity of a metal workpiece , which contains an aluminum alloy , wherein the workpiece is irradiated in order to increase its temperature , an absorbent is applied at least locally to the workpiece prior to irradiation , and the degree of absorption of the absorbent for the radiation is greater than the degree of absorption of the workpiece for the radiation.2. The method according to claim 1 , wherein the absorbent adheres to where it is applied to the workpiece during irradiation of the workpiece.3. The method according to claim 1 , wherein the absorbent is applied to at least two sides of the metal workpiece.4. The method according to claim 1 , wherein the absorbent contains grey and/or black components.5. The method according to claim 1 , wherein the absorbent contains graphite.6. The method according to claim 1 , wherein the absorbent at least partially evaporates after application to the workpiece and prior to irradiation.7. The method according to claim 1 , wherein the absorbent contains at least one liquid carrier medium and/or at least one solid claim 1 , and wherein the absorbent is powdered and absorbent.8. The ...

ANNEALING SEPARATOR FOR GRAIN-ORIENTED ELECTROMAGNETIC STEEL SHEET

An annealing separator for a grain oriented electrical steel sheet does not inhibit the flowability of an atmospheric gas during the final annealing of the coil-shaped product and can prevent the occurrence of surface roughness. The annealing separator contains 0.01-0.05 mass % of Cl, 0.05-0.15 mass % of B, 0.1-2 mass % of CaO and 0.03-1.0 mass % of PO, and is mainly composed of magnesia having: a degree of activity of citric acid of 30-120 seconds as measured at 40% CAA; a specific surface area of 8-50 m/g as measured by a BET method; an amount of hydration of 0.5-5.2 mass % as measured in terms of ignition loss; and a content of particles each having a particle diameter of 45 μm or more of 0.1 mass % or less, the annealing separator further containing a water-insoluble compound having a particle diameter of 45-150 μm inclusive in an amount of 0.05-20 mass % inclusive. 12-. (canceled)3. An annealing separator for a grain oriented electrical steel sheet comprising: Cl: 0.01 mass % to 0.05 mass %; B: 0.05 mass % to 0 ,15 mass %; CaO: 0.1 mass % to 2 mass %; and PO: 0.03 mass % to 1.0 mass % , the annealing separator mainly composed of magnesia having: a degree of activity of citric acid of 30 seconds to 120 seconds as measured at 40% CAA; a specific surface area of 8 m/g to 50 m/g as measured by a BET method; an amount of hydration of 0.5 mass % to 5.2 mass % as measured in terms of ignition loss; and a content of magnesia particles each having a particle diameter of 45 μm or more of 0.1 mass % or less , the annealing separator further containing a water-insoluble compound having a particle diameter of 45 μm or more to 150 μm or less in an amount of 0.05 mass % or more to 20 mass % or less.4. The annealing separator according to claim 3 , wherein the water-insoluble compound is an oxide claim 3 , and the oxide is an oxide of at least one element selected from the group consisting of Al claim 3 , Si claim 3 , P claim 3 , Ti claim 3 , Cr claim 3 , Mn claim 3 , Fe claim ...

REGENERATIVE HEAT TREATMENT METHOD FOR HEAT-RESISTANT METAL MEMBER SUFFERING FROM CREEP DAMAGE

A heat-resistant metal member suffering from creep damage is covered by a heat-resistant covering member and secured so as to contact an outer periphery of the heat-resistant metal member, and the heat-resistant metal member covered by the heat-resistant covering member is heated to a temperature of 1000° C. or greater. A compressive force accordingly acts on the heat-resistant metal member undergoing thermal expansion toward the outer periphery, enabling efficient regenerative heat treatment to be performed on the heat-resistant metal member suffering from creep damage, while restraining thermal expansion in the direction toward the outer periphery of the heat-resistant metal member. 1. A regenerative heat treatment method for a heat-resistant metal member suffering from creep damage , the method comprising:covering the heat-resistant metal member by a heat-resistant covering member and securing so as to contact an outer periphery of the heat-resistant metal member; andheating the heat-resistant metal member covered by the heat-resistant covering member to a temperature of 1000° C. or greater.2. The method according to claim 1 , wherein claim 1 ,{'sub': '1', 'after heating the heat-resistant metal member covered by the heat-resistant covering member to a temperature of 1000° C. or greater, the heat-resistant metal member covered by the heat-resistant covering member is cooled and re-heated to a temperature of an Atransformation point or greater.'} The present invention relates to a regenerative heat treatment method for a heat-resistant metal member suffering from creep damage.Hitherto, as a method to regenerate locations degraded by creep damage in high temperature members, such as those employed in thermal or nuclear power plants, or chemical plants (for example, high temperature resistant welds of boilers and turbines, and base material for high temperature pipes, headers, nozzles and the like), a method has been developed in which, for example, the high ...

METHOD OF MANUFACTURING Ni-BASE SUPERALLOY

There is provided a method of manufacturing an Ni-base superalloy which enables a uniform coat of a glass lubricant to be maintained even after heated to hot forging temperature. The method of manufacturing an Ni-base superalloy in which a forging stock containing an Ni-base superalloy, coated with a lubricant, is subjected to hot forging includes: a preliminary oxidation step of previously generating a Cr oxide coating film having a film thickness of 0.5 to 50 μm on the forging stock thereby to obtain a preliminarily oxidized material; a lubricant coating step of coating the preliminarily oxidized material with a glass lubricant containing borosilicate glass as a main component thereby to obtain a material to be forged; and a hot forging step of hot forging the material to be forged thereby to obtain a hot forged material. 1. A method of manufacturing an Ni-base superalloy , in which a forging stock including an Ni-base superalloy , coated with a lubricant , is subjected to hot forging , comprising:a preliminary oxidation step of previously generating a Cr oxide coating film having a film thickness of 0.5 to 50 μm on the forging stock;a lubricant coating step of coating a Cr oxide coating film formed on the forging stock having been subjected to the preliminary oxidation step with a glass lubricant including borosilicate glass as a main component; anda hot forging step of hot forging the forging stock having been subjected to the lubricant coating step.2. The method of manufacturing an Ni-base superalloy according to claim 1 , wherein the hot forging step is closed die forging using a die heated to a temperature of 400° C. or higher.3. The method of manufacturing an Ni-base superalloy according to claim 1 , wherein in the hot forging step the forging stock heated to a temperature of 900 to 1100° C. is subjected to hot forging.4. The method of manufacturing an Ni-base superalloy according to claim 2 , wherein in the hot forging step the forging stock heated to a ...

Manufacturing method of high magnetic flux density oriented electrical steel with excellent magnetic and coating properties

이 발명은 상자소둔로 없이도 안정적인 억제제를 형성시켜 자기특성과 피막특성이 양호한 방향성 전기강판을 제조하게 하려는 것이다. 이 발명에 따른 방향성 전기강판의 제조방법은 방향성 전기강판의 슬랩을 1,250℃이하의 저온에서 재가열하고 열간압연한 후, 열연판소둔을 행한 다음, 냉간압연하여 최종판 두께를 얻으며, 탈탄 및 질화에 의해 질소를 강 속에 넣고, 고온하에서 최종소둔하는 단계를 포함하며, 최종소둔단계에 진입하기 전에 소량의 Si 3 N 4 가 혼입된 MgO 슬러리를 강판에 도포하고, 최종소둔단계는 100% 수소분위기에서 행한다. 전기강판 슬랩은 0.1 중량% 이하의 C와, 1.0-4.8 중량%의 Si와, 0.010-0.05 중량%의 Al과, 0.05-2.0 중량%의 Mn과, 100ppm 이하의 N와, 0.01 중량%의 S 및, 잔부를 이루는 Fe 및 불가피한 불순물을 함유한다. 전기강판 슬랩에는 Cu, Cr 및 Ni이 함유됨으로써 최종적으로 AlN계통의 질화물을 억제제로 이용하거나, 또는, B가 함유됨으로써 BN를 억제제로 이용할 수 있다. The present invention is to produce a grain-oriented electrical steel sheet having good magnetic properties and coating properties by forming a stable inhibitor without the box annealing furnace. In the method for manufacturing a grain-oriented electrical steel sheet according to the present invention, the slab of the grain-oriented electrical steel sheet is reheated at a low temperature of 1,250 ° C. or lower, hot rolled, and then hot-rolled sheet is annealed, and then cold-rolled to obtain a final sheet thickness, by decarburization and nitriding. Nitrogen is introduced into the steel, and the final annealing is carried out at a high temperature. Before entering the final annealing step, a small amount of Si 3 N 4 mixed MgO slurry is applied to the steel sheet, and the final annealing step is performed in a 100% hydrogen atmosphere. . Electrical steel slab is 0.1 wt% or less of C, 1.0-4.8 wt% of Si, 0.010-0.05 wt% of Al, 0.05-2.0 wt% of Mn, 100 ppm or less of N, and 0.01 wt% of S And Fe, which forms the remainder, and unavoidable impurities. Cu, Cr, and Ni are contained in the electrical steel slab to finally use an AlN-based nitride as an inhibitor, or, by containing B, BN can be used as an inhibitor.

Strips, sheets or blanks suitable for hot forming, and methods for their production

Electrical steel sheet for stacking, stacked electrical steel sheet, method of manufacturing stacked electrical steel sheet, and iron core for automotive motor

자동차용 모터 등의 고온 접착성, 고온 내유성이 요구되는 적층 철심에 사용되는 적층형 전자 강판을 제공한다.　적층용 전자 강판으로서, 전자 강판과, 상기 전자 강판의 적어도 편면에 형성되고, 마르텐스 경도(HM)가 50 이상, 500 미만인 접착형 절연 피막을 구비하는 적층용 전자 강판이다. A laminated type electromagnetic steel sheet for use in a laminated iron core requiring high temperature adhesiveness and high temperature oil resistance such as automotive motors. An electromagnetic steel sheet for lamination, comprising: an electromagnetic steel sheet; and an adhesive insulating film formed on at least one side of the electromagnetic steel sheet and having a Martens hardness (HM) of 50 or more and less than 500.

Protective-lubricant material for hot metal forming

FIELD: metallurgy. SUBSTANCE: invention relates to metallurgy, in particular, to protective-lubricating materials used in hot deformation of metals or alloys. Protective-lubricating material for hot plastic deformation of metals or alloys contains glass fabric and graphite lubricant applied on its one side on water basis. Surface density of protective-lubricating material is 310 ± 15 g/m 2 . Said glass fabric has thickness of 0.27 ± 0.03 mm. Graphite water-based lubricant contains colloidal graphite; the content of colloidal graphite in terms of the dry residue is equal to 8–14 % of the surface density of the protective-lubricating material. EFFECT: providing stability of dimensions of structural components of forgings produced by batches on one set of process tool using protective-lubricant material, wherein there is no need for periodic cleaning of die engraving from graphitized-containing layer accumulated on working surface. 1 cl РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 741 047 C1 (51) МПК C21D 1/68 (2006.01) C21D 8/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК C21D 1/68 (2020.08); C21D 8/005 (2020.08) (21)(22) Заявка: 2019139839, 06.12.2019 (24) Дата начала отсчета срока действия патента: (73) Патентообладатель(и): Общество с ограниченной ответственностью "Би Концепт", (ООО "Би Концепт") (RU) Дата регистрации: 22.01.2021 (45) Опубликовано: 22.01.2021 Бюл. № 3 2 7 4 1 0 4 7 R U (54) ЗАЩИТНО-СМАЗОЧНЫЙ МАТЕРИАЛ ДЛЯ ГОРЯЧЕЙ ОБРАБОТКИ МЕТАЛЛОВ ДАВЛЕНИЕМ (57) Реферат: Изобретение относится к металлургии, в на водной основе содержит коллоидный графит, частности, к защитно-смазочным материалам, при этом содержание коллоидного графита в используемым при горячей деформации металлов пересчете на сухой остаток составляет 8-14% от или сплавов. Защитно-смазочный материал для поверхностной плотности защитно-смазочного горячей пластической деформации металлов или материала. Обеспечивается стабильность сплавов ...

Method for producing a directional electric steel plate having high magnetic property and thin profile

이 발명은 상자소둔로 없이도 안정적인 억제제를 형성시켜 두께가 얇으면서도 자기특성과 피막특성이 양호한 방향성 전기강판을 제조하게 하려는 것이다. 이 발명에 따른 방향성 전기강판의 제조방법은 방향성 전기강판의 슬랩를 1,250℃이하의 저온에서 재가열하고, 열간압연한 후, 1.45-1.55mm의 두께로 1차 냉간압연하고 열연판소둔을 행한 다음, 2차 냉간압연하여 0.20mm 이하의 얇은 판 두께를 얻으며, 탈탄 및 질화에 의해 질소를 강 속에 넣고, 고온하에서 최종소둔하는 단계를 포함하며, 열연판소둔단계에서의 최고도달온도가 1,120℃ 이상이며, 최고도달온도까지의 승온시간이 90초 이내이고, 2차 냉간압연단계에서의 압연율이 85-90%이며, 최종소둔단계에 진입하기 전에 소량의 Si 3 N 4 가 혼입된 MgO 슬러리를 강판에 도포하고, 최종소둔단계는 100% 수소분위기에서 행한다. 전기강판 슬랩은 0.1 중량% 이하의 C와, 1.0-4.8 중량%의 Si와, 0.010-0.05 중량%의 Al과, 0.05-2.0 중량%의 Mn과, 100ppm 이하의 N와, 0.01 중량%의 S 및, 잔부를 이루는 Fe 및 불가피한 불순물을 함유한다. 전기강판 슬랩에는 Cu, Cr 및 Ni이 함유됨으로써 최종적으로 AlN계통의 질화물을 억제제로 이용하거나, 또는, B가 함유됨으로써 BN를 억제제로 이용할 수 있다. The present invention is to form a stable inhibitor without a box annealing furnace to produce a grain-oriented electrical steel sheet having a thin thickness but good magnetic properties and coating properties. In the method for producing a grain-oriented electrical steel sheet according to the present invention, the slab of the grain-oriented electrical steel sheet is reheated at a low temperature of 1,250 ° C. or lower, hot rolled, and then first cold rolled to a thickness of 1.45-1.55 mm and subjected to hot rolled sheet annealing Cold rolling is used to obtain a thin plate thickness of 0.20mm or less, including nitrogen in the steel by decarburization and nitriding, and final annealing at a high temperature. The maximum reaching temperature in the hot-rolled sheet annealing step is 1,120 ° C or more. The temperature rise time to the maximum reaching temperature is within 90 seconds, the rolling rate in the second cold rolling stage is 85-90%, and the MgO slurry containing a small amount of Si 3 N 4 mixed into the steel sheet before entering the final annealing stage. After application, the final annealing step is carried out in a 100% hydrogen atmosphere. Electrical steel slab is 0.1 wt% or less of C, 1.0-4.8 wt% of Si, 0.010-0.05 wt% of Al, 0.05-2.0 wt% of Mn, 100 ppm or less of N, and 0.01 wt% of ...

Method for preventing oxidation of material to be heated

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

High-strength bolt and manufacturing method thereof

본발명은 내지연파괴성능과 냉간소성가공성이 우수한 고강도 볼트용 강선 및 고강도 볼트의 제조방법에 관한 것이다. The present invention relates to a high-strength bolt steel wire and a high-strength bolt manufacturing method excellent in delayed fracture performance and cold firing workability. 본 발명은, 양호한 냉간소성가공성과 우수한 내지연파과성능을 발휘하기 때문에, 고강도 볼트용 강선으로서, 다음과 같은 신규한 윤활피막층을 강선에 피복시켜 냉간조성가공을 행하는 것이다. Since the present invention exhibits good cold plastic workability and excellent delayed breakthrough performance, it is a high-strength bolt steel wire which is subjected to cold forming processing by coating the following new lubricating coating layer on the steel wire. 신규한 윤활피막층으로는, 강선의 표면에 접착되어 피복된 무기염계 윤활피막과, 무기염계 윤활피막에 적층된 비(非) 인계의 특수윤활피막으로 구성된 다층피막이다. 상기 무기염계 윤활피막은 규산칼륨이 바람직하며, 또한 특수 윤활피막으로는 스테아린산칼슘이 바람직하다. The novel lubricating film layer is a multilayer coating composed of an inorganic salt-based lubricating film bonded to the surface of a steel wire and a non-phosphorus special lubricating film laminated on the inorganic salt-based lubricating film. The inorganic salt lubricating film is preferably potassium silicate, and as the special lubricating film, calcium stearate is preferable. 상기한 신규 윤활피막층을 코팅한 고강도 볼트용 강선을 대상으로 바람직한 냉간소성가공을 행한다. 다음으로 열처리를 수행하여 강표층부를 소정의 깊이까지 탈탄 컨트롤을 행하여, 내지연파괴성능이 우수한 강강도 볼트를 획득한다. The preferred cold firing is performed on the high-strength bolt steel wire coated with the novel lubricating film layer. Next, heat treatment is performed to decarburize the steel surface layer to a predetermined depth to obtain a strength bolt having excellent delayed fracture performance. 고강도 볼트, 윤활피막, 강선, 내지연파괴 High strength bolts, lubricating film, steel wire, delayed fracture

Insulating coating liquid for oriented silicon steel surface, oriented silicon steel plate and manufacturing method thereof

本发明公开了一种用于取向硅钢表面的绝缘涂层涂液，其含有：磷酸二氢镁、胶态二氧化硅、铬酐、磷酸二氢锌和氧氯化锆。本发明还公开了一种取向硅钢板，其包括基板，所述基板表面具有采用上述的绝缘涂层涂液涂覆在基板上而形成的涂层。相应地，本发明还公开了上述取向硅钢板的制造方法，其包括步骤：在基板表面涂覆所述绝缘涂层涂液，然后进行烧结处理，其中烧结处理中的板温为800‑900℃。本发明所述的绝缘涂层涂液可以有效用于取向硅钢板中，且可以在其表面形成涂层。该表面涂层能够赋予取向硅钢板更高的张力和更优异的耐热性能，具有良好的推广前景和应用效果。

An anti-oxidation coating for steel and method of protecting steel from oxidation

An anti-oxidation coating for steel is prepared by mixing Mg-containing minerals, laminated silicates, metallurgy solid wastes, commercial aluminum powders, organic thickening agents, inorganic bindings, which comprise Al2O3, SiO2, MgO, CaO, Fe2O3, C, B2O3, P2O5, Na2O, together with water. The density of the resultant coating slurry is adjusted within 1100-1500kg/m3 by controlling the amount of added water. The coating can be directly sprayed onto the hot steel whose temperature is up to 1000°C before its entering into hot-rolling furnaceand a continuous protection film can be formed under high temperature. Thus, the high temperature oxidation burning loss during transportation and soaking treatment of the slab before the hot-rolling can be effectively reduced without changing those primary properties of steel substrate. The advantages of the anti-oxidation coating are good self-stripping property after heating, easy obtained raw materials, low cost and simple preparing process. The present anti-oxidation coating can be used widely in the anti-oxidation of various steels during 800-1300°C / 2-10 hours heating.

Process for hardening metal workpieces

Electrical steel sheet for stacking, stacked electrical steel sheet, method of manufacturing stacked electrical steel sheet, and iron core for automotive motor

자동차용 모터 등의 고온 접착성, 고온 내유성이 요구되는 적층 철심에 사용되는 적층형 전자 강판을 제공한다.　적층용 전자 강판으로서, 전자 강판과, 상기 전자 강판의 적어도 편면에 형성되고, 마르텐스 경도(HM)가 50 이상, 500 미만인 접착형 절연 피막을 구비하는 적층용 전자 강판이다.

Transmission device for mold steel processing equipment

【課題】金型鋼が圧延中に、媒体によって、金型鋼ワークの圧延変形中のオーステナイトの形成を回避し、剪断変形層の厚さを低減することができる、金型鋼加工設備用伝動装置を提供する。【解決手段】ローラ搬送装置に設けられたセラミック発熱体によって加工待ちの金型鋼ワークを第１温度範囲内に維持し、それによって金型鋼ワーク表面の結晶特性が温度の急激な変化によって変化しないことを保証することができる。また、本発明はナノ金属粉末を含有する液体媒体を、媒体ノズルを通して、ワーク表面の圧延機に接触しようとしている場所にスプレーする。【選択図】図１

Production of grain oriented electrical steel sheet having uniform glass film and excellent magnetic characteristic

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Anti-oxidation spraying method of steel billet and spraying equipment thereof

本发明提供了一种钢坯的防氧化喷涂方法及喷涂设备。其方法是使400℃—1000℃温度的钢坯(2)进入到预定喷涂区域(10)，采用多个防氧化涂料喷涂装置在两个或两个以上的方位上对钢坯(2)进行防氧化喷涂，从而直接在400℃—1000℃的钢坯(2)上形成防氧化涂层。采用本发明的方法和设备，能够在高温条件下对钢坯在线喷涂防氧化涂层，从而减少钢坯的氧化烧损率。

A method of the scale-free heating of steel material part is carried out using solid carburizer

一种采用固体渗碳剂进行钢铁材料零件无氧化加热的方法，本发明涉及一种钢铁材料零件无氧化加热的方法。本发明是要解决现有进行无氧化加热的方法存在成本高、操作困难，加工质量不稳定，不易批量生产的问题。方法：将零件埋入装满固体渗碳剂的铁箱中并密封。再将铁箱装入普通的加热炉中加热即可。加热时零件完全接触箱内的还原气氛，杜绝氧化作用发生，实现了无氧化加热。本发明用于钢铁材料零件的热加工。

Preparing method for heat treating agent for heat treatment of speed changing box shell

本发明涉及车用零部件加工技术领域，具体是涉及一种变速箱壳体热处理用热处理剂的制备方法。首先向容器中加入10份月桂醇聚醚硫酸酯钠和20份水，搅拌5分钟；接着缓慢加入0.5份碳酸钾，边加边搅拌，添加完毕后搅拌5分钟；接着缓慢加入12份丙烯酸酯乳液和10份水，边加边搅拌，添加完毕后搅拌5分钟；然后缓慢加入0.5份黄酮苷，边加边搅拌，添加完毕后搅拌5分钟；最后缓慢加入10份环己烷和10份水，搅拌20分钟。本发明的热处理剂的制备方法，通过逐步添加以及合理选择加料顺序，不仅能够提高各物质之间的溶解性能，还能避免颗粒团聚的可能，使热处理剂的热处理防护功能得到显著的提升。

Roller conveyer system

PURPOSE: A roller conveyor system is provided to enable gap adjustment to thermally treat multiple objects in an oven. CONSTITUTION: A roller conveyor system comprises a first roller conveyor(100) and a second roller conveyor(200). The first roller conveyor is used to a coating or a plating process. The second roller conveyor passes an oven. The first and second roller conveyors are arranged into the shape of a rectangular to circulate a palette on a roller. A driving roller, a driving unit, and a direction conversion part are arranged at each corner of the first and second roller conveyors. The direction conversion part rotates the driving roller in a horizontal direction to convert a moving direction of the palette placed on the driving roller. A direction conversion part after the coating or the plating process in the first roller conveyor is arranged near a direction conversion part before thermal treatment in the second roller conveyor so that the objects placed on the palette on the direction conversion part of the first roller conveyor to the palette on the direction conversion part of the second roller conveyor. The second roller conveyor is divided before the oven to pass through the over in multiple rows.

Agent for preventing generation of oxide scale of steel material

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Ferrule protect device for part heat treatment

PURPOSE: A ferrule protection ring for partial heat treatment is provided to improve work efficiency with securing the safety of production by removing harmful elements and simplifying a partial heat treatment process. CONSTITUTION: A ferrule protection ring for partial heat treatment comprises a ferrule fixing mount(10) and a ferrule outer fixing ring(20). The ferrule fixing mount exposes the part(111) of a fitting tube ferrule(110) to be thermally treated. The ferrule inside fixing portion(11) of the ferrule fixing mount is fitted inside a ferrule. The ferrule outer fixing ring partially exposes the part of a fitting tube ferrule to be thermally treated. The ferrule outside fixing portion(21) of the ferrule outer fixing ring is fitted outside the ferrule. The ferrule fixing mount and the ferrule outer fixing ring are respectively press-fitted inside and outside the ferrule.

Coating agents for annealing of the electric steel sheet

내용 없음.

Additive composition of annealing separating agent, method for manufacturing the same, annealing separating agent composition including the same, and method for manufacturing steel sheet using the same

본 발명의 구현예들에서는, 융점이 900 ℃이하인 저융점 입자를 적어도 1종 이상 포함하는, 첨가제; 및 분산매;를 포함하며, 상기 저융점 입자는, Sr, Ni, Cu, Cr, Bi, Co, Ca, Zr, Mg, 및 Mn 중에서 선택되는 금속의 화합물이 포함된 것이고, 입경이 1.0 ㎛ 이하(단, 0 ㎛ 제외)이며, 상기 분산매 내 콜로이드 상으로 분산되는 것인, 첨가제 조성물 및 이의 제조 방법을 제공한다. 또한, 상기 첨가제 조성물을 첨가한 소둔 분리제 조성물, 이의 제조 방법, 및 이를 이용한 방향성 전기강판의 제조 방법을 제공한다. In embodiments of the present invention, an additive comprising at least one low-melting-point particle having a melting point of 900 DEG C or lower; Wherein the low melting point particle contains a compound of a metal selected from Sr, Ni, Cu, Cr, Bi, Co, Ca, Zr, Mg and Mn, (Excluding 0 占 퐉), and is dispersed in the colloid phase in the dispersion medium, and a process for producing the same. The present invention also provides an annealing separator composition to which the additive composition is added, a method for producing the same, and a method for producing a grain oriented electrical steel sheet using the same.

A kind of high magnetic induction grain-oriented silicon steel aoxidizes magnesium-dope with low aquation

本发明涉及高磁感取向硅钢用的氧化镁，具体为一种高磁感取向硅钢用低水化氧化镁涂料，包括质量份为10‑15的特种氧化镁，质量份为0.5‑1.5的二氧化钛，质量份为0.001‑0.005的低熔点化合物，低熔点化合物为锑化合物，质量份为0.001‑0.005的疏水剂，疏水剂为硅微粉，质量份为80‑90的去离子水,上述成分在1000‑1500r/min搅拌状态下混合60‑90分钟，反应温度在0‑5°C条件下制成低水化氧化镁涂料。本发明采用疏水剂抑制氧化镁水化，减少由于Mg(OH) 2 带入钢卷间的水量，达到形成均匀一致的硅酸镁底层，保证钢卷层间露点的一致性，避免过氧化现象的发生。

PROCEDURE FOR PROTECTING METAL AGAINST HIGH TEMPERATURE ROXYDATION

Separating agent for annealing

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Method for improving maximum bending angle of product

本发明公开了一种用于提高产品最大弯曲角度的方法，包括以下步骤：对待成型产品进行热成形处理，其中，在热成形处理过程中，所述待成型产品会产生自回火行为；其中，在步骤“对待成型产品进行热成形处理”中采用能提高自回火程度的方法，包括：在热成形处理过程中，使热成型模具的温度控制在预设范围内，所述预设范围在100‑240℃之间，以增加热成形过程中待成型产品在450℃‑150℃温度区间的时间；并同时控制保压压力，以增加所述待成型产品与所述热成型模具之间的换热速度。本发明提供的一种用于提高产品最大弯曲角度的方法，其能提高热成形零件的冷弯性能。

PROCESS FOR STABILIZING THE VISCOSITY OF AN AQUEOUS MAGNESIA SUSPENSION AND COMPOSITION USED FOR THIS EFFECT

Manufacture of cold rolled steel sheet

ANNEALING SEPARATOR FOR ORIENTED GRAIN SILICON STEEL BLADES

ANNEALING SEPARATOR FOR ORIENTED GRAIN SILICON STEEL BLADES

Un séparateur de recuit utilisable pour produire une lame d'acier au silicium à grain orienté ayant d'excellentes propriétés magnétiques, comprend un oxyde de magnésium non hydratable qui a été grillé à une température de 1 300 degrés C ou plus, de préférence de 1 300 à 2 100 degrés C, et qui se présente sous la forme de fines particules, dont 70 % en poids ont une taille de 5 microns ou moins, et optionnellement, de l'hydroxyde de magnésium dans une proportion de 1 à 100 % rapportée au poids de l'oxyde de magnésium et/ou un composé d'aluminium dans une proportion de 0,05 à 10 % rapportée au poids de l'oxyde de magnésium An annealing separator usable to produce a grain oriented silicon steel blade having excellent magnetic properties, comprises a non-hydratable magnesium oxide which has been roasted at a temperature of 1300 degrees C or more, preferably 1. 300 to 2100 degrees C, and which is in the form of fine particles, 70% by weight of which have a size of 5 microns or less, and optionally, magnesium hydroxide in a proportion of 1 to 100% reported by weight of magnesium oxide and / or an aluminum compound in a proportion of 0.05 to 10% based on the weight of magnesium oxide

Protective coating for titanium and titanium alloys

Method for preventing burning of cold rolled steel sheet during strain relieving annealing

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Production of stainless steel sheets

APPARATUS AND METHOD FOR CEMENTATION PROCESSING

Protecting steel against corrosive gas - esp fluorine arising from uranium hexafluoride

Steel is protected from corrosive gases esp. F2 by (a) hot-spraying a coating of Al on the steel, (b) mechanical blasting to obtain a smooth surface and close the pores in the Al, (c) heat treating the coated part below the temp. where diffusion of the Fe-Al occurs. The Al coating is pref. 30-300 mu thick, shot-blasted with rounded particles, esp. of Al with mean dia. 1mm, and heat-treated 2 hours at 450 degrees C. This method prevents the reaction of the steel with uranium hexafluoride utilised in isotope sepn.; this reaction produces solid, non-adherent fluorides which interfere with the appts. and cause loss of uranium in addn. to steel corrosion.

PROCESS FOR PREVENTING SHEET METAL SHEET DURING HEAT TREATMENT

Improvements in the heat treatment of metals

Patent FR2204711A1

Surface preparation process for steel products

Patent FR2236017B1

Patent FR2268874A1

Patent FR2399485B1

Method and composition for controlling scale formation on iron-bearing surfaces

METHOD FOR PREVENTING THE STICKING OF METAL SHEETS DURING A HEAT TREATMENT

Procédé comprenant une étape de traitement thermique à proprement parler pendant laquelle lesdites tôles sont en contact sur une partie de leur surface (c'est à dire qu'elles sont par exemples bobinées ou en paquets serrés) et une étape de traitement préalable de ces surfaces à l'aide d'une solution aqueuse ou hydro-alcoolique dans laquelle on a introduit un produit organique de type silane.Ce traitement permet d'éviter le collage des tôles; il est particulièrement efficace et ne nécessite pas d'activation préalable de la surface. Method comprising a heat treatment step proper during which said sheets are in contact on part of their surface (that is to say that they are for example wound or in tight bundles) and a step of prior treatment of these surfaces using an aqueous or hydro-alcoholic solution into which an organic silane-type product has been introduced. This treatment avoids sticking of the sheets; it is particularly effective and does not require prior activation of the surface.

Patent FR2058055A5

Heat treatment of metal powder

Method of protecting metal surfaces during heat treatment

A composition for application to slabs, billets and other articles of metal such as tools which are to undergo heat treatment comprises ferrosilicon, a finely divided refractory material and a fusible glass-forming material. Oxidation and decarburization are thereby reduced. The refractory may be alumina, magnesia, silica or a silicate the fusible material may be powdered glass or a mixture of silicates, borates or phosphates with iron oxide or lead oxide. The composition may also contain aluminium and an oxidizing agent such as a nitrate or chlorate, iron oxide or manganese dioxide if these are present a fluoride is also preferably added. The mixture may be suspended in water or an organic solvent with an alkyl ammonium montmorillonite as a dispersing agent. A resinous adhesive may also be included. The composition may be applied by brushing, dipping or spraying.ALSO:A composition for application to slabs, billets and other articles of metal such as tools which are to undergo heat treatment comprises ferro-silicon, a finely divided refractory material and a fusible glaze-forming material. Oxidation and decarburization are thereby reduced. The refractory may be alumina, magnesia, silica or a silicate the fusible material may be powdered glass or a mixture of silicates, borates or phosphates with iron oxide or lead oxide. The composition may also contain aluminium and an oxidizing agent such as a nitrate or chlorate, iron oxide or manganese dioxide if these are present a fluoride is also preferably added. The mixture may be suspended in water or an organic solvent with an alkyl ammonium mont-morillonite as a dispersing agent. A resinous adhesive may also be included. The composition may be applied by brushing, dipping or spraying.ALSO:A composition for application to slabs, billets and other articles of metal such as tools which are to undergo heat treatment comprises ferrosilicon, a finely divided refractory material and a fusible glaze-forming material. Oxidation ...

Annealing separator for grain oriented silicon steel strips

An annealing separator useful for producing a grain oriented silicon steel strip having an excellent magnetic property, comprises non-hydrating magnesium oxide which has been calcined at a temperature of 1300° C. or more, preferably, from 1300° to 2100° C., and which is in the form of fine particles, 70% by weight of which have a size of 5 microns or less, and optionally, magnesium hydroxide in an amount of 1 to 100% based on the weight of the magnesium oxide and/or an aluminium compound in an amount of 0.05 to 10% based on the weight of the magnesium oxide.

Process for the extrusion of heavy metals, in particular steel

Silicon steel and processing therefore

A process for producing grain oriented electromagnetic silicon steel. The process includes the steps of: preparing a melt of silicon steel having, by weight, from 2.5 to 4.0% silicon; casting the steel; hot rolling the steel; cold rolling the steel; decarburizing the steel; applying a substantially non-reactive aluminum hydroxide coating to the steel; and final texture annealing the steel. The annealed steel being characterized by a substantially uniform metallic surface.

Annealing separator

Coating composition

Method of stabilizing viscosity and increasing concentration of aqueous magnesia slurry

ABSTRACT OF THE DISCLOSURE A method of stabilizing the viscosity and increasing the concentration of an aqueous magnesia slurry in which the magnesia has a citric acid activity less than 200 seconds. Magnesia concentrations of 0.1 to 0.24 grams magnesia per cubic centimeter of slurry can be stabilized by addition of 0.5% to 25% by weight of a decomposable phosphate-containing compound, calculated as P2O5, based on the dry weight of magnesia. Preferred phosphate compounds include monocalcium phosphate monohydrate, water soluble ammonium polyphosphate, dibasic calcium phosphate, and tribasic calcium phosphate.

Separating-agents composition and method using same

Annealing separator composition for grain-oriented electrical steel sheet, and method of manufacturing grain-oriented electrical steel sheet using the same

How to cure metal elements

RELEASE AGENT AND METHOD FOR annealing a silicon steel.

Elevated temperature working of metals and alloys

Deviated heat preventing method at slab heating

Process for protecting tools in press spinning and for protecting the bar

Process for obtaining grain=oriented electromagnetic silicon steel

Method of producing permalloy cores

A method of producing permalloy cores comprising the steps of applying an annealing separator coating 0.1 to 50 µm thick to at least one surface of wide permalloy strip, slitting the wide permalloy strip to a final width, winding or punching the final width strip, and annealing the strip at a temperature in the range 1000 °to 1300°C, and a permalloy core producible with this method. The method allows the efficient manufacturing of permalloy cores with highly stable magnetic properties.

A kind of non-oxidation heat treatment for being used to protect iron scale

一种用于保护氧化铁皮的无氧化热处理方法，属于热处理技术领域。采用Al 2 O 3 粉末及铝箔包覆试样后进行不同温度下的热处理，解决了采用传统的管式或箱式真空热处理炉需要惰性气体和抽真空实现无氧化的热处理方式，同时避免了采用热模拟试验无法获得实际生产工艺中氧化铁皮结构的试验方法，采用该无氧化热处理方法，方便快捷，无成本，无污染，无变形，安全可靠，完整地保护了氧化铁皮结构不受氧化，且试样尺寸不受限制。

Curable protective coating composition

The present invention relates to a self-collapsed protective coating composition and use thereof. In particular, the invention relates to a self-collapsed protective coating composition for hot stamping of steel material, which can protect the surface of steel material from oxide scale and provide ease for subsequent welding.

PROCESS FOR PRODUCING AN ELECTRIC GRAIN ORIENTED STEEL RIBBON HAVING IMPROVED MAGNETIC PROPERTIES AND GLASS FILM PROPERTIES

LA PRESENTE INVENTION FOURNIT UN SEPARATEUR DE RECUIT CONSTITUE DE 0,05 A 2PARTIES EN POIDS DE SULFATE D'ANTIMOINE PAR RAPPORT A 100PARTIES EN POIDS D'OXYDE DE MAGNESIUM, ET D'AU MOINS UN CHLORURE CHOISI PARMI LES CHLORURES DE SB, SR, TI ET ZR, LA PROPORTION DE CHLORURE ETANT DE 5 A 20 EN POIDS PAR RAPPORT A LA TOTALITE DU CHLORURE ET DU SULFATE D'ANTIMOINE, ET POUVANT LE CAS ECHEANT CONTENIR DE L'OXYDE DE TI DANS UNE PROPORTION DE 0,5 A 10PARTIES EN POIDS. LE SEPARATEUR DE RECUIT EST APPLIQUE SUR LE RUBAN RECUIT POUR DECARBURATION ET AMELIORE TANT LES PROPRIETES MAGNETIQUES QUE LES PROPRIETES DE PELLICULE DE VERRE, LORS DE LA PRODUCTION D'UNE TOLE D'ACIER ELECTRIQUE A GRAINS ORIENTES. UTILISATION NOTAMMENT POUR REALISER LES NOYAUX DE TRANSFORMATEURS ET AUTRES APPAREILS ELECTRIQUES. THE PRESENT INVENTION PROVIDES AN ANCIENT SEPARATOR CONSISTING OF 0.05 TO 2 PARTS BY WEIGHT OF ANTIMONY SULPHATE RELATED TO 100 PARTS BY WEIGHT OF MAGNESIUM OXIDE, AND AT LEAST ONE CHLORIDE SELECTED FROM CHLORIDES OF SB, SR, TI AND ZR, THE PROPORTION OF CHLORIDE BEING 5 TO 20 BY WEIGHT TO TOTAL CHLORIDE AND ANTIMONY SULPHATE, AND MAY IF NECESSARY CONTAIN TI OXIDE IN A PROPORTION OF 0.5 TO 10 PARTS IN WEIGHT. The annealing separator is applied to the annealed tape for decarburization and improves both the magnetic properties and the glass film properties, when producing an oriented grain steel sheet. USE IN PARTICULAR FOR MAKING THE CORES OF TRANSFORMERS AND OTHER ELECTRICAL DEVICES.

COOLING PROCESS MINIMIZING DEFORMATION OF METALLURGICAL PRODUCTS

L'INVENTION EST RELATIVE A UN PROCEDE DE REFROIDISSEMENT ECONOMIQUE DE PRODUITS METALLURGIQUES QUI MINIMISE LES DEFORMATIONS DE CEUX-CI TOUT EN PRESERVANT LEURS PROPRIETES D'EMPLOI. LA METHODE CONSISTE A REFROIDIR LE PRODUIT METALLURGIQUE AVEC UN MODE DE REFROIDISSEMENT DIFFERENT ENTRE APPROXIMATIVEMENT LES DEUX MOITIES ADJACENTES DE SA SURFACE EXTERIEURE, CHACUNE D'ELLES S'ETENDANT SELON LE SENS LONG OU LE PLAN PRINCIPAL DU PRODUIT QUAND IL(S) EXISTE(NT). CES DIFFERENCES DE REFROIDISSEMENT PEUVENT ETRE ASSUREES PAR LA DIFFERENCE DES CONDITIONS D'ARROSAGE DU PRODUIT OU PAR ENDUCTION D'UNE DES MOITIES DU PRODUIT PAR UN REVETEMENT ISOLANT. LA METHODE S'APPLIQUE PARTICULIEREMENT BIEN AUX PRODUITS RELATIVEMENT MINCES. IL EN RESULTE EGALEMENT UNE ECONOMIE DE FLUIDE DE REFROIDISSEMENT ET UNE AUGMENTATION DE LA PRODUCTIVITE DES INSTALLATIONS. THE INVENTION RELATES TO AN ECONOMICAL COOLING PROCESS FOR METALLURGIC PRODUCTS WHICH MINIMIZES THE DEFORMATIONS OF THEM WHILE PRESERVING THEIR PROPERTIES OF USE. THE METHOD CONSISTS OF COOLING THE METALLURGIC PRODUCT WITH A DIFFERENT COOLING MODE BETWEEN APPROXIMATELY THE TWO ADJACENT HALVES OF ITS EXTERIOR SURFACE, EACH OF THEM EXTENDING IN THE LONG DIRECTION OR THE MAIN PLANE OF THE PRODUCT WHEN IT (S) EXISTS (NT) ). THESE DIFFERENCES IN COOLING MAY BE PROVIDED BY THE DIFFERENCE IN THE CONDITIONS OF WATERING THE PRODUCT OR BY COATING ONE HALF OF THE PRODUCT WITH AN INSULATING COATING. THE METHOD APPLIES PARTICULARLY WELL TO RELATIVELY THIN PRODUCTS. THIS ALSO RESULTS IN A SAVING OF COOLING FLUID AND AN INCREASE IN THE PRODUCTIVITY OF THE PLANTS.

A curable protective coating composition

A self-collapsed protective coating composition and use thereof are provided. The coating composition for hot stamping of steel material comprises a film forming binder, a pigment, a stripping agent, and a solvent. The coating composition can be used in the manufacturing of hot stamped steel material, which can protect the surface of steel material from oxide scale during hot stamping process and provide ease for subsequent welding.

A kind of preparation method of the energy-absorbing component of bumper

本发明涉及汽车配件技术领域，尤其涉及一种汽车保险杠的吸能组件的制备方法。步骤如下：泡沫钼吸能块采用钼泡沫材料制成，其他部件的成型依现有技术实施；将泡沫钼吸能块置于预处理液中浸泡处理5小时，取出后沥干，然后于200℃下热处理2小时；首先将泡沫钼吸能块一个个组装在保险杠挡板的吸能腔中，然后将弹簧安装在吸能腔内相邻泡沫钼吸能块之间，最后将保险杠挡板安装到车身固定支架上。一种汽车保险杠的吸能组件及其制备方法，产品结构设计较为新颖，在吸能组件的加工制备过程中，对泡沫钼吸能块进行了预处理，从而提高了其缓冲性能，同时，使其耐腐蚀性能变得更好。

Patent FR2058056A5

Processing stainless steel

METAL AND FIRE-RESISTANT PROTECTION METHODS

Patent FR2192180A1

Preparation method of magnesium oxide for high-viscosity silicon steel

本发明涉一种高粘度硅钢用氧化镁的制备方法，具体为一种高粘度硅钢用氧化镁的制备方法，提升现有取向硅钢质量。将白云石碳化法制得的轻质氧化镁通过与水进行合成后，在板框压滤机进行固液分离；分离得到的固体氢氧化镁经过煅烧，得到氧化镁；经涡轮式粉碎机粉碎包装后即得到高粘度硅钢用氧化镁。产品具有生产工艺独特、成本较低、无三废产生，能明显提高硅钢片厂氧化镁配液后粘度值，增加氧化镁与硅钢片粘结力。同时提高取向硅钢磁感应强度，降低铁损，增加硅钢片正品率。可针对性在取向硅钢生产厂家推广使用。

Method for improving adhesiveness of low-temperature high-magnetic-induction oriented silicon steel

本发明涉及一种提高低温高磁感取向硅钢附着性的方法，该方法在现有低温高磁感取向硅钢连续式脱碳退火炉中，通过在脱碳退火前区通入氮气、氢气干式混合气，在脱碳退火后区通入氮气、氢气湿式混合气进行脱碳，在渗氮区通入氮气、氢气湿式混合气及氨气进行渗氮，解决了低温高磁感取向硅钢附着性不好的难题。本发明方法提高了钢中总氧量、增加了氧化层厚度、改善了氧化层结构，经高温退火后生成了致密的硅酸镁底层，附着性大幅提高，测试结果均在C级以上，大部分样品在B级以上。

In-line calibration equipment for heat-treated molding material

The present invention relates to in-line calibration equipment for heat-treated molding materials. The purpose of the present invention is to provide the in-line calibration equipment for heat-treated molding materials which maximizes the automation of a length test and a displacement test of the heat-treated molding material, thereby being able to enhance the reliability of the tests. The equipment comprises: a conveyor belt to which the plurality of heat-treated molding materials are supplied; a step feeder on which the plurality of heat-treated molding materials transferred from the conveyor belt are stacked; an anti-rust unit having an anti-rust support frame, an anti-rust cloth, and an anti-rust roller; a length measuring unit having a length measuring frame and a length measuring sensor; a transfer unit having a transfer frame, a transfer chain, and a transfer actuator; a straightness measuring unit having a displacement measuring frame and a displacement sensor; and a storage unit having a first storage frame, a second storage frame, and a rotary actuator.

A transfer device for die steel processing equipment

Eine Übertragungsvorrichtung für die Matrizenstahlverarbeitungsausrüstung, die ein Rollenförderband (72) umfasst, das zwischen einer Wärmebehandlungsvorrichtung und einer Nachbearbeitungsvorrichtung verbunden ist, wobei das Rollenförderband (72) eine Rolle (73), ein Lager (74) und einen Rahmen (75) umfasst, dadurch gekennzeichnet, dass der Keramikheizkörper gleichmäßig an der Innenwand der Rolle angeordnet ist, wobei ein Ende der Rolle (73) mit einem Ende des Lagers (74) verbunden ist, wobei das andere Ende des Lagers (74) mit einem Motor verbunden ist, der die Rolle antreibt, um sich im Rahmen (75) zu drehen, wobei das andere Ende der Rolle (73) mit einem Elektrodenverbindungszylinder (76) verbunden ist, der innen und außen zwei Metallelektrodenringe umfasst, und der Innere Metallelektrodenring ragt aus dem äußeren Metallelektrodenring heraus, wobei die beiden Metallelektrodenringe jeweils und stabil elektrisch mit den beiden Elektroden des Keramikheizkörpers verbunden sind, wobei ein erstes Kontaktstück (81) und ein zweites Kontaktstück (82), die in stabilem elektrischen Kontakt mit den beiden Metallelektrodenringen stehen, jeweils innerhalb des Rahmens (75) angeordnet sind, wobei das erste Kontaktstück und das zweite Kontaktstück durch ein Isoliermaterial (83) getrennt sind, wobei das erste Kontaktstück und das zweite Kontaktstück die beiden Elektroden des Keramikheizkörpers über die beiden Metallelektrodenringe mit stabiler Leistung versorgen, und der Keramikheizkörper gleichmäßig eine konstante Temperatur des ersten Temperaturbereichs an die Außenwand der Rolle nach der Stromversorgung liefert, so dass das Matrizenstahlwerkstück nach der Wärmebehandlung langsam auf den ersten Temperaturbereich auf dem Rollenförderband (72) geglüht wird und diese Temperatur beibehalten wird. A transfer device for die steel processing equipment comprising a roller conveyor belt (72) connected between a heat treatment device and a post-processing device, the roller conveyor belt ( ...

Temporary scale retardant coatings

A coating composition containing 75-95% MgO, 2-10% B 2 O 3 and 0-15% C, which is effective in retarding oxidation of ferrous metal articles, especially at temperatures in excess of 2150°F. Additional protection is achieved when about 11-17% TiO 2 is substituted for about the same amount of MgO. The composition is admixed with a suitable vehicle and is applied to the metal surface in the form of a dispersion, suspension or as a slurry.

High speed tin plating process

Methods for the electrolytic preparation of tin coated metals are disclosed. Organic polybasic acids, such as methanedisulfonic acid [CH2(SO3H)2], 1,3-acetonedisulfonic acid [CO(CH2SO3H)2], anhydrides, and their water soluble salts, and mixtures thereof may be used as the electrolyte in the plating process or as the flux in the reflow process. Acetone, gamma-butyrolactone, or a mixture thereof, may be applied to a tin plated surface, either before or after reflow. The methods of the invention produce plated material that is free of blue haze.

Protection of hot metallic bodies against oxidation

Caleb mabshall

Oxidation inhibitor of steel material

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

COMPOSITION OF COATING BASED ON MAGNESIUM OXIDE AND PROCEDURE FOR USING THIS COMPOSITION

Electricians' steel plate with corrosion resisting insolating layer and iron core used in motor or transformer

本发明涉及具有耐蚀性好的磷酸盐-有机树脂系电绝缘涂层的电工钢板及由此制得的电机或变压器用铁心。

Silicon steel and processing therefore

SILICON STEEL AND PROCESSING THEREFORE ABSTRACT OF THE DISCLOSURE A process for producing grain oriented electromagnetic silicon steel. The process includes the steps of: preparing a melt of silicon steel having, by weight, from 2.5 to 4.0% silicon; casting the steel; hot rolling the steel; cold rolling the steel; decarburizing the steel; applying a substantially non-reactive aluminum hydroxide coating to the steel; and final texture annealing the steel. The annealed steel being characterized by a substantially uniform metallic surface.

Annealing separator used in the finishing annealing step for producing a grain-oriented electrical steel sheet

Method for manufacturing electrical sheet

본 발명은 전기기기의 핵심부품인 각종 모터나 변합기 등의 철심재료로 사용되는 무방향성 전기강판의 제조방법에 관한 것이며, 그 목적은 최종제품의 외관 및 표면품질이 우수한 무방향성 전기강판의 제조방법을 제공하고자 하는데 있다. The present invention relates to a method for manufacturing a non-oriented electrical steel sheet used as iron core materials, such as various motors and transformers, which are the core parts of electrical equipment, the purpose of the production of non-oriented electrical steel sheet excellent in appearance and surface quality of the final product To provide a way. 상기 목적을 달성하기 위한 본 발명은 중량%로 Si:0.1-3.0%, Al:0.5% 이하, Mn:0.5% 이하, P:0.1% 이하, 잔부 Fe 및 기타 불가피하게 함유되는 불순물로 조성되는 강 슬라브를 사용하여 무방향성 전기강판을 제조하는 방법에 있어서, 상기 강 슬라브를 통상의 방법으로 열간압연과 냉간압연한 다음 먼저 무기질계 코팅제로 절연코팅을 실시한 후 700-1000℃의 온도범위에서 소둔하는 외관 및 표면품질이 우수한 무방향성 전기강판의 제조방법에 관한 것을 그 기술적 요지로 한다. The present invention for achieving the above object is a steel composition of Si: 0.1-3.0%, Al: 0.5% or less, Mn: 0.5% or less, P: 0.1% or less, balance Fe and other unavoidable impurities In the method for producing a non-oriented electrical steel sheet using a slab, the steel slab is hot-rolled and cold-rolled in a conventional manner, and then subjected to insulation coating with an inorganic coating agent and then annealed at a temperature range of 700-1000 ℃ The technical gist of the non-oriented electrical steel sheet having excellent appearance and surface quality is described.

Method for improving the annealing separator coating on silicon steel and coating therefor

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heat treatment method for explosive welding composite board

本发明公开了爆炸焊接复合板热处理方法，其步骤如下：S1：对爆炸焊接成型的复合板进行表面清洗，校平处理；S2：在所述S1处理后的复合板的金属表面涂覆隔离剂；S3：将涂覆隔离剂的复合板的金属表面两两合扣，然后进行装炉；S4：装炉完成后，进行合炉密封，并对炉腔内充填惰性气体；S5：对复合板进行热处理操作；S6：热处理结束后进行校平、探伤、切割处理；S7：对涂刷隔离剂的金属表面进行机械抛光；S8：检验，包装。本发明具有操作简单、成本低、处理效率高等优点。

Electromagnetic steel sheet having a highly corrosion-resistant insulating film and a core for use in motors or transformers made of the electromagnetic steel sheet

An electromagnetic steel sheet having a corrosion-resistant electrically insulating film. The insulating film is formed by spraying and baking, on the steel sheet, a treating liquid containing an emulsion of fine resin particles, a reducing agent and an accelerator. The emulsion of fine resin particles exhibits a weight change peak temperature of not lower than about 400°C as measured by differential thermal weight measurement conducted while raising the emulsion temperature at a constant rate of temperature rise. The emulsion also substantially resists when contacted by phosphoric acid. The reducing agent is a phosphate ion aqueous solution containing a metal. Also disclosed is a corrosion-resistant core made from the electromagnetic steel sheet.