Настройки

Укажите год
-

Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

Подробнее
-

Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

Подробнее

Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Укажите год
Укажите год
Применить Всего найдено 2347. Отображено 100.
20-02-2013 дата публикации

ЭЛЕКТРОДУГОВАЯ ПЕЧЬ ПОСТОЯННОГО ТОКА ДЛЯ ПЛАВКИ

Номер: RU0000124956U1
Автор: Алферов Вадим Иванович, Володин Алексей Михайлович, Кучер Игорь Владимирович, Скибин Сергей Александрович, Стернин Леонид Евгеньевич
Принадлежит: Открытое акционерное общество "Тяжпрессмаш"

1. Электродуговая печь постоянного тока для плавки металла, содержащая футерованный корпус со сводом и днищем, окно для загрузки исходного материала, сливное отверстие, сводовый и, по меньшей мере, один подовый электроды, а также источник электроэнергии, к которому подсоединены электроды, и систему регулирования тока, отличающаяся тем, что на внешней поверхности корпуса печи между уровнем окна загрузки и днищем установлен соленоид, обеспечивающий при подаче тока магнитное насыщение расплавленного металла. 2. Электродуговая печь по п.1, отличающаяся тем, что соленоид снабжен магнитопроводом, один из полюсов которого расположен на уровне расплавленного металла, а другой - на уровне нижней поверхности днища. 3. Электродуговая печь по п.2, отличающаяся тем, что соленоид расположен внутри магнитопровода и снабжён системой воздушного охлаждения. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 124 956 U1 (51) МПК F27B 3/08 (2006.01) F27D 27/00 (2010.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ 2012124626/02, 14.06.2012 (24) Дата начала отсчета срока действия патента: 14.06.2012 (45) Опубликовано: 20.02.2013 Бюл. № 5 1 2 4 9 5 6 R U Формула полезной модели 1. Электродуговая печь постоянного тока для плавки металла, содержащая футерованный корпус со сводом и днищем, окно для загрузки исходного материала, сливное отверстие, сводовый и, по меньшей мере, один подовый электроды, а также источник электроэнергии, к которому подсоединены электроды, и систему регулирования тока, отличающаяся тем, что на внешней поверхности корпуса печи между уровнем окна загрузки и днищем установлен соленоид, обеспечивающий при подаче тока магнитное насыщение расплавленного металла. 2. Электродуговая печь по п.1, отличающаяся тем, что соленоид снабжен магнитопроводом, один из полюсов которого расположен на уровне расплавленного металла, а другой - на уровне нижней поверхности днища. 3. Электродуговая печь по п.2, отличающаяся тем, что ...

Подробнее
Номер записи: 1
26-02-2018 дата публикации

Индукционная индукторная тигельная печь с кольцевым наборным магнитопроводом

Номер: RU0000177465U1
Автор: Левшин Александр Геннадьевич, Левшин Геннадий Егорович
Принадлежит: федеральное государственное бюджетное образовательное учреждение высшего образования "Алтайский государственный технический университет им. И.И. Ползунова" (АлтГТУ)

Индукционная индукторная тигельная печь с кольцевым наборным магнитопроводом предназначена для использования в металлургии и литейном производстве для выплавки различных сплавов, доведения расплава до необходимых свойств и выдержки его для порционной разливки. Печь содержит скрепленные вместе каркас с верхней и нижней плитами, футерованный тигель, охлаждаемый индуктор с электроизолированными витками и токоподводом, наружный наборный магнитопровод. Между тиглем и индуктором размещена цилиндрическая обечайка. Магнитопровод выполнен в виде кольцевого кожуха. Обечайка и магнитопровод расположены между плитами с образованием замкнутой кольцевой полости для размещения индуктора и хладагента. Значительно расширяется сфера использования индукционных плавки и тигельной печи путем снижения энергоемкости плавки, уменьшения эксплуатационных расходов и занимаемой площади, повышения защищенности индуктора и работающих и надежности работы печи. И 1 177465 ко РОССИЙСКАЯ ФЕДЕРАЦИЯ ВУ” 177465” 44 ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ИЗВЕЩЕНИЯ К ПАТЕНТУ НА ПОЛЕЗНУЮ МОДЕЛЬ ММ9К Досрочное прекращение действия патента из-за неуплаты в установленный срок пошлины за поддержание патента в силе Дата прекращения действия патента: 09.12.2018 Дата внесения записи в Государственный реестр: 16.09.2019 Дата публикации и номер бюллетеня: 16.09.2019 Бюл. №26 Стр.: 1 па ЗА ДЬ ЕП

Подробнее
Номер записи: 2
26-02-2018 дата публикации

Индукционная индукторная тигельная печь с проволочным индуктором

Номер: RU0000177475U1
Автор: Левшин Александр Геннадьевич, Левшин Геннадий Егорович
Принадлежит: федеральное государственное бюджетное образовательное учреждение высшего образования "Алтайский государственный технический университет им. И.И. Ползунова" (АлтГТУ)

Индукционная индукторная тигельная печь с проволочным индуктором предназначена для использования в металлургии и литейном производстве для выплавки различных сплавов, доведения расплава до необходимых свойств и выдержки его для порционной разливки. Печь содержит скрепленные вместе каркас с верхней и нижней плитами, футерованный тигель, охлаждаемый индуктор с электроизолированными витками и токоподводом, наружный наборный магнитопровод. Между тиглем и индуктором размещена цилиндрическая обечайка. Наборный магнитопровод выполнен в виде полого цилиндра. Витки индуктора выполнены из одно- или многопроволочного проводника. Обечайка и магнитопровод расположены между плитами с образованием замкнутой кольцевой полости для размещения индуктора и хладагента. Значительно расширяется сфера использования индукционных плавки и тигельной печи путем снижения энергоемкости плавки, уменьшения эксплуатационных расходов и занимаемой площади, повышения защищенности индуктора и работающих и надежности работы печи. И 1 177475 ко РОССИЙСКАЯ ФЕДЕРАЦИЯ 7 ВУ’? 177 475 41 ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ИЗВЕЩЕНИЯ К ПАТЕНТУ НА ПОЛЕЗНУЮ МОДЕЛЬ ММ9К Досрочное прекращение действия патента из-за неуплаты в установленный срок пошлины за поддержание патента в силе Дата прекращения действия патента: 09.12.2018 Дата внесения записи в Государственный реестр: 16.09.2019 Дата публикации и номер бюллетеня: 16.09.2019 Бюл. №26 Стр.: 1 па УДЛУД ДАТЬ ЕП

Подробнее
Номер записи: 3
22-05-2019 дата публикации

УСТРОЙСТВО МАГНИТОГИДРОДИНАМИЧЕСКОГО ПЕРЕМЕШИВАНИЯ ЖИДКОГО МЕТАЛЛА В ЦИЛИНДРИЧЕСКОЙ ВАННЕ

Номер: RU0000189343U1
Автор: Алиферов Александр Иванович, Бикеев Роман Александрович, Морев Андрей Эдуардович, Промзелев Владислав Алексеевич
Принадлежит: ФЕДЕРАЛЬНОЕ ГОСУДАРСТВЕННОЕ БЮДЖЕТНОЕ ОБРАЗОВАТЕЛЬНОЕ УЧРЕЖДЕНИЕ ВЫСШЕГО ОБРАЗОВАНИЯ "НОВОСИБИРСКИЙ ГОСУДАРСТВЕННЫЙ ТЕХНИЧЕСКИЙ УНИВЕРСИТЕТ"

Полезная модель относится к области металлургии, а именно к устройствам магнитогидродинамического перемешивания жидких металлов. Электромагнитная сила, действующая на расплав, создается специальным устройством с постоянными магнитами. Предлагаемое устройство позволяет повысить КПД электромагнитного перемешивателя жидкого металла за счет наличия концентраторов магнитного поля, которые уменьшают потоки рассеяния, кроме того, предлагаемое устройство позволяет организовывать вращательное движение расплава по средствам воздействия на него вращающегося магнитного поля при фиксированном расположении концентраторов относительно магнитной системы, а также позволяет организовать возмущение расплава при фиксированном расположении концентраторов относительно ванны расплава, создавая пульсирующее магнитное поле, что существенно повышает гомогенность расплава по температуре, химическому составу и структуре. Переменное магнитное поле различных форм создает в расплаве вихревой ток, при взаимодействии которого с внешним магнитным полем постоянных магнитов возникает сила Лоренца, действующая на расплав, и приводящая к его перемещению. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 189 343 U1 (51) МПК F27D 27/00 (2010.01) F27B 14/06 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (52) СПК F27D 27/00 (2018.08); F27B 14/06 (2018.08) (21)(22) Заявка: 2018134418, 27.09.2018 (24) Дата начала отсчета срока действия патента: Дата регистрации: 22.05.2019 (45) Опубликовано: 22.05.2019 Бюл. № 15 Адрес для переписки: 630073, г. Новосибирск, пр. Карла Маркса, 20, ФГБОУ ВО " Новосибирский государственный технический университет" (73) Патентообладатель(и): ФЕДЕРАЛЬНОЕ ГОСУДАРСТВЕННОЕ БЮДЖЕТНОЕ ОБРАЗОВАТЕЛЬНОЕ УЧРЕЖДЕНИЕ ВЫСШЕГО ОБРАЗОВАНИЯ "НОВОСИБИРСКИЙ ГОСУДАРСТВЕННЫЙ ТЕХНИЧЕСКИЙ УНИВЕРСИТЕТ" (RU) (56) Список документов, цитированных в отчете о поиске: RU 2543022 С1, 27.02.2015. RU U 1 1 8 9 3 4 3 R U (54) УСТРОЙСТВО МАГНИТОГИДРОДИНАМИЧЕСКОГО ...

Подробнее
Номер записи: 4
25-10-2021 дата публикации

УСТРОЙСТВО МАГНИТОГИДРОДИНАМИЧЕСКОГО ПЕРЕМЕШИВАНИЯ ЖИДКОГО МЕТАЛЛА В ЦИЛИНДРИЧЕСКОЙ ВАННЕ

Номер: RU0000207347U1
Автор: Алиферов Александр Иванович, Морев Андрей Эдуардович
Принадлежит: ФЕДЕРАЛЬНОЕ ГОСУДАРСТВЕННОЕ БЮДЖЕТНОЕ ОБРАЗОВАТЕЛЬНОЕ УЧРЕЖДЕНИЕ ВЫСШЕГО ОБРАЗОВАНИЯ «НОВОСИБИРСКИЙ ГОСУДАРСТВЕННЫЙ ТЕХНИЧЕСКИЙ УНИВЕРСИТЕТ»

Полезная модель относится к области металлургии, а именно к устройствам магнитогидродинамического перемешивания жидких металлов. Электромагнитная сила, действующая на расплав, создается специальным устройством с постоянными магнитами. Предлагаемое устройство позволяет обеспечить технологически необходимую равномерность вводимых в расплав легирующих элементов за счет спиралевидной формы вращающихся постоянных магнитов. Источником электромагнитного поля, влияющего на расплав, является система вращающихся постоянных магнитов. Переменное магнитное поле создает в расплаве вихревой ток, при взаимодействии которого с внешним магнитным полем постоянных магнитов возникает сила Лоренца, действующая на расплав и приводящая к его перемещению. Спиралевидная форма постоянных магнитов позволяет достичь помимо азимутальной составляющей скорости расплава еще и движение по высоте ванны: от центра ванны по радиусу к стенке, по стенке вверх и от верхней точки зеркала расплава вниз, создавая воронку жидкого металла, которая интенсифицирует процесс перемешивания легирующих элементов по объему расплава. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 207 347 U1 (51) МПК F27D 27/00 (2010.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (52) СПК F27D 27/00 (2021.08) (21)(22) Заявка: 2021121847, 23.07.2021 (24) Дата начала отсчета срока действия патента: 25.10.2021 Приоритет(ы): (22) Дата подачи заявки: 23.07.2021 (45) Опубликовано: 25.10.2021 Бюл. № 30 2 0 7 3 4 7 R U (56) Список документов, цитированных в отчете о поиске: RU 2543022 C1, 27.02.2015. RU 2157492 C2, 10.10.2000. RU 2465528 C1, 27.10.2012. RU 2224966 C1, 27.02.2004. GB 2389645 A, 17.12.2003. US 5563904 A, 08.10.1998. (54) УСТРОЙСТВО МАГНИТОГИДРОДИНАМИЧЕСКОГО ПЕРЕМЕШИВАНИЯ ЖИДКОГО МЕТАЛЛА В ЦИЛИНДРИЧЕСКОЙ ВАННЕ (57) Реферат: Полезная модель относится к области расплаве вихревой ток, при взаимодействии металлургии, а именно к устройствам которого с внешним магнитным полем ...

Подробнее
Номер записи: 5
27-06-2013 дата публикации

Metal melting apparatus and method for melting metal

Номер: US20130161881A1
Автор: Shao-Hua Lu
Принадлежит: Pinda Tech Co Ltd

A metal melting apparatus has a heating furnace, a melting furnace mounted on the heating furnace, a high-cycle regenerative system (FIRS), a raw material feeding device and a melted material feeding device mounted on the melting furnace. The HRS heats and recycles high temperature air in the heating furnace and guides the high temperature air to the preheating screw to preheat metal materials in the preheating screw. Thus, a time for melting the metal materials from solid to liquid is greatly shortened. Furthermore, a series of processes for preheating the metal materials in the raw material feeding device, melting the metal materials in the melting furnace and injecting the molten materials to the molds is fluent, time-saving and safe, and can progress continuously.

Подробнее
Номер записи: 6
22-08-2013 дата публикации

Transferring molten metal using non-gravity assist launder

Номер: US20130214014A1
Автор: Paul V. Cooper
Принадлежит: Individual

A system and method for transferring molten metal from a vessel and into a launder is disclosed. The system includes at least a vessel for containing molten metal, an overflow (or dividing) wall, and a device or structure, such as a molten metal pump, for generating a stream of molten metal. The dividing wall divides the vessel into a first chamber and a second chamber, wherein part of the second chamber has a height H 2 . The device for generating a stream of molten metal, which is preferably a molten metal pump, is preferably positioned in the first chamber. When the device operates, it generates a stream of molten metal from the first chamber and into the second chamber. When the level of molten metal in the second chamber exceeds H 2 , molten metal flows out of the vessel and into the launder. The launder has a horizontal angle of between 0° and −10° to help prevent dross from being pulled by gravity into downstream vessels.

Подробнее
Номер записи: 7
14-11-2013 дата публикации

Molten metal transfer vessel and method of construction

Номер: US20130299525A1
Автор: Paul V. Cooper, Vincent D. Fontana
Принадлежит: Molten Metal Equipment Innovations LLC

The invention relates to systems for transferring molten metal from one structure to another. Aspects of the invention include a transfer chamber constructed inside of or next to a vessel used to retain molten metal. The transfer chamber is in fluid communication with the vessel so molten metal from the vessel can enter the transfer chamber. A powered device, which may be inside of the transfer chamber, moves molten metal upward and out of the transfer chamber and preferably into a structure outside of the vessel, such as another vessel or a launder.

Подробнее
Номер записи: 8
05-12-2013 дата публикации

APPARATUS AND METHOD FOR SUPPLYING HEAT TO A METAL MELT

Номер: US20130322486A1
Автор: Venas Karl
Принадлежит: ALU INNOVATION AS

The invention relates to a device and a method for supplying heat to a metal melt, where in a closed container () with openings () for supply and discharge of the melt and where a sub pressure may be formed, a rotor () in the form of a hallow rotation body and a hollow driving shaft () containing the electrode () for supply of electric current for formation of an electric arc () towards the surface () of the metal of the melt. The lower end of the electrode () is positioned in a hollow head with an opening () downwards towards the bottom of the container (). The hollow head is configured to provide access to the surface () of the metal melt, so that the electric arc () is formed inside the head and where the hollow driving shaft () possibly is configured for supply of gas to the metal melt. The lower end surface of the rotor () is configured so that a pumping effect in the heated melt beneath the lower end of the rotor () is formed, moving the heated melt sideways away from the rotor () along the lower, external end surface of the rotor (). 24016. Apparatus according to claim 1 , where the axes of said borings () form an angle with a plane being perpendicular to the longitudinal axis of the rotor ().316164116. Apparatus according to claim 1 , where the external vertical surface of the rotor () at least in the region of the lower end of the rotor () is provided with slots () claim 1 , grooves or profiles in order to improve the pumping effect beneath the lower end surface of the rotor ().44116. Apparatus according to claim 3 , wherein the slots () claim 3 , grooves or profiles extend in the longitudinal direction of the rotor () and may be straight or helical.541. Apparatus according to claim 4 , where the slots () claim 4 , the grooves or the profiles extend in a direction around the rotor on its external surface.620. Apparatus according to claim 5 , wherein the hollow shaft () is configured to supply gas of the metal melt.78-. (canceled) The present invention ...

Подробнее
Номер записи: 9
09-01-2014 дата публикации

Rotary degasser and rotor therefor

Номер: US20140008849A1
Автор: Paul V. Cooper
Принадлежит: Individual

A device for dispersing gas into molten metal includes an impeller, a drive shaft having a gas-transfer passage therein, and a first end and a second end, and a drive source. The second end of the drive shaft is connected to the impeller and the first end is connected to the drive source. The impeller includes a first portion and a second portion with a plurality of cavities. The first portion covers the second portion to help prevent gas from escaping to the surface without entering the cavities and being mixed with molten metal as the impeller rotates. When gas is transferred through the gas-transfer passage, it exits through the gas-release opening(s) in the bottom of the impeller. At least some of the gas enters the cavities where it is mixed with the molten metal being displaced by the impeller. Also disclosed are impellers that can be used to practice the invention.

Подробнее
Номер записи: 10
20-02-2014 дата публикации

DEVICE AND METHOD FOR REMOVING IMPURITIES IN ALUMINUM MELT

Номер: US20140047952A1
Автор: ZENG Jianmin
Принадлежит: GUANGXI UNIVERSITY

A device and method for removing impurities in aluminum melt. The device comprises an upper furnace body, a lower furnace body, an intermediate partition plate, a crucible, heating elements and a charging opening. The intermediate partition plate is mounted between the upper furnace body and the lower furnace body. The upper furnace body, a mixing chamber and the heating element are above the intermediate partition plate. The crucible is amounted in the lower furnace body. The heating element is provided around the lower furnace body. The lower furnace body is provided with the charging opening and a pipeline. The upper furnace body is provided with an inlet valve and an exhaust valve. The mixing chamber and the crucible are connected by a jet pipe passing through the intermediate partition plate. A ceramic seal pad is used for sealing between the mixing chamber and the jet pipe. During use, the aluminum melt and a liquid flux are placed in the crucible, the liquid flux covers the aluminum melt, the pressure of the lower furnace body is increased, the aluminum melt first stably enters the mixing chamber along the jet pipe, then the liquid flux enters the mixing chamber in a manner of confined jet flow and is uniformly mixed with the aluminum melt, last the pressure of the lower furnace body is unloaded, so that the mixed liquid falls back into the crucible, and this operation may be repeated for multiple times. For the device and the method, the impurity removal is quick, the efficiency is high and the process is closed, so there is no environmental pollution, and the aluminum melt after the impurity removal may be directly cast. 1. A device for removing impurities in aluminum melt comprising:an upper furnace body,a lower furnace body,an intermediate partition plate,a crucible,heating elements, anda charging opening,wherein the intermediate partition plate is mounted between the upper furnace body and the lower furnace body;the upper furnace body, a mixing chamber ...

Подробнее
Номер записи: 11
20-03-2014 дата публикации

PERMANENT MAGNET TYPE CYLINDRICAL MOLTEN-METAL AGITATOR AND MELTING FURNACE WITH PERMANENT MAGNET TYPE SUCTION PUMP

Номер: US20140079561A1
Автор: Takahashi Kenzo
Принадлежит:

There is provided an energy-saving agitator that suppresses the amount of generated heat, is easy to use and carry out maintenance, has flexibility in an installation position, and can also adjust an agitating ability. The agitator includes a furnace body that includes a molten metal room storing a molten metal, and an agitating unit that agitates the molten metal stored in the furnace body. The agitating unit includes a molten-metal driving room-forming part that is disposed in the molten metal room, applies a driving force to the molten metal, and forms a driving room of which both ends are opened; a pair of electrodes that is disposed in the driving room and makes current flow in the driving room under the presence of the molten metal; and a magnetic field unit which is formed of a permanent magnet disposed outside the furnace body, of which one pole of an N pole and an S pole faces the furnace body so that magnetic lines of force generated from the one pole cross the current, and which generates an electromagnetic force for driving the molten metal from one end toward the other end in the driving room. 1. A permanent magnet type molten-metal agitator comprising:a furnace body that includes a molten metal room storing a molten metal; andan agitating unit that agitates the molten metal stored in the furnace body, a molten-metal driving room-forming part that is disposed in the molten metal room, applies a driving force to the molten metal, and forms a driving room of which both ends are opened,', 'a pair of electrodes that is disposed in the driving room and makes current flow in the driving room under the presence of the molten metal, and', 'a magnetic field unit which is formed of a permanent magnet and is disposed outside the furnace body, of which one pole of an N pole and an S pole faces the furnace body so that magnetic lines of force generated from the one pole cross the current, and which generates an electromagnetic force for driving the molten metal from ...

Подробнее
Номер записи: 12
02-01-2020 дата публикации

Liquid lithium supply and regulation

Номер: US20200002153A1
Автор: Bernard Frey, Jean Delmas
Принадлежит: Applied Materials Inc

Methods and systems for the production and delivery of lithium metal of high purity are provided. More particularly, methods and systems for lithium metal purification, delivery and deposition are provided. In at least one aspect, a liquid lithium delivery system is provided. The liquid lithium delivery system comprises a liquid lithium delivery module. The liquid lithium delivery system comprises a lithium storage region operable to store the liquid lithium, a pumping region operable to move liquid lithium through the lithium delivery, and a flow control region. The pumping region comprises an electromagnetic pump operable to move the liquid lithium using electromagnetism. The flow control region operable to control the flow of liquid lithium, comprising one or more valves operable to control the flow of the liquid lithium, wherein the pumping region is positioned downstream from the lithium storage region and upstream from the flow control region.

Подробнее
Номер записи: 13
05-01-2017 дата публикации

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

Номер: US20170003077A1
Автор: Takahashi Kenzo
Принадлежит:

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., ...

Подробнее
Номер записи: 14
04-01-2018 дата публикации

DEVICE AND METHOD FOR MANUFACTURING AN ACTIVE ALLOY

Номер: US20180002782A1
Автор: CHENG Chien-Tzu, Huang Chao-Hsien, Hung Yu-Ting, Hwang Weng-Sing, QI Guan-Ping
Принадлежит:

An device for manufacturing an active alloy includes: a melting chamber including: a working pipe surrounded by an induction coil and forming a working area; a chamber base disposed below the working pipe and communicated with the working pipe, and including: a gas inlet hole; a vacuum pump connection port; and a vacuum sensor, for measuring a vacuum degree in the working pipe; a chamber door communicated with the chamber base; a first bracket passing through the chamber base, and moving towards a direction away from or near the working area; a second bracket extending into the working pipe, and moving towards a direction away from or near the working area; and a material recycling seat which can extend into the chamber base in a push and pull way. 1. A device for manufacturing an active alloy , comprising: a working pipe surrounded by an induction coil and forming with a working area;', a gas inlet hole;', 'a vacuum pump connection port; and', 'a vacuum sensor, for measuring a vacuum degree in the working pipe;, 'a chamber base disposed below the working pipe and communicated with the working pipe, and comprising, 'a chamber door communicated with the chamber base;', 'a first bracket passing through the chamber base, and moving towards a direction away from or near the working area;', 'a second bracket extending into the working pipe, and moving towards a direction away from or near the working area; and', 'a material recycling seat extending into the chamber base in a push and pull way;, 'a melting chamber comprisinga vacuum pump unit physically connected to the vacuum pump connection port, for making the melting chamber form a vacuum confined space; andan inert gas supply unit communicated with the melting chamber via the gas inlet hole.2. The device for manufacturing an active alloy according to claim 1 , wherein:the chamber door is used for placing a first active metal into the chamber base;the first bracket is used for lifting up the position of the first ...

Подробнее
Номер записи: 15
04-01-2018 дата публикации

METHOD FOR MANUFACTURING A NICKEL-TITANIUM ALLOY USING A HIGH VACUUM CRUCIBLELESS LEVITATION MELTING PROCESS

Номер: US20180003441A1
Автор: CHENG Chien-Tzu, Huang Chao-Hsien, Hung Yu-Ting, Hwang Weng-Sing, QI Guan-Ping
Принадлежит:

A method for manufacturing a nickel-titanium alloy includes steps of: placing a titanium material on a first bracket, and placing a nickel material on a second bracket; vacuumizing the vacuum confined space of the melting chamber to below a pressure of 10Torr, and lifting up the titanium material placed on the first bracket to a working area of an induction coil; introducing inert gases; starting the induction coil, to make the titanium material in a levitation state and electromagnetically stirred and heated; dropping the first bracket; measuring whether the temperature of the working area of the induction coil reaches a predetermined temperature range; when the first active metal is in the half molten state, dropping the nickel material placed on the second bracket to be added to the titanium material, and obtaining a homogenizing nickel-titanium alloy by means of electromagnetic stirring and heating; and recycling the homogenizing nickel-titanium alloy. 1. A method for manufacturing a nickel-titanium alloy using a high vacuum crucibleless levitation melting process , the method comprising:step A: placing a titanium material on a first bracket, and placing a nickel material on a second bracket, so as to make the titanium nickel and materials located in a vacuum confined space of a melting chamber;{'sup': '−5', 'step B: vacuumizing the vacuum confined space of the melting chamber to below a pressure of 10Torr, and lifting up the titanium material placed on the first bracket to a working area of an induction coil;'}step C: introducing inert gases, to prevent the titanium material from producing an oxidization reaction in a subsequent high-temperature process;step D: starting the induction coil, to make the titanium material in a levitation state and electromagnetically stirred and heated;step E: dropping the first bracket, to make the titanium material stably levitate and electromagnetically stirred and heated;step F: measuring whether the temperature of the working ...

Подробнее
Номер записи: 16
09-01-2020 дата публикации

MULTI-CHAMBER MELTING FURNACE AND METHOD FOR MELTING NON-FERROUS SCRAP METAL

Номер: US20200011602A1
Автор: HUBBAUER Herbert, JUMELET Tom, LUTTINGER Patrick
Принадлежит:

A multi-chamber melting furnace for melting scrap of non-ferrous metals, in particular aluminum scrap, including a first shaft furnace with a shaft for charge material, in which impurities of the charge material can be removed, and at least one furnace chamber which is connected to the shaft of the first shaft furnace and has a first heat supply device, wherein at least one second shaft furnace with a shaft for charge material, in which shaft impurities of the charge material can be removed, the furnace chamber being connected to the shaft of the second shaft furnace and being arranged between the shafts in such a manner that the furnace chamber forms a main melting chamber in which the molten bath is located during operation. 1. A multi-chamber melting furnace for melting scrap of non-ferrous metals , in particular aluminum scrap , comprising a first shaft furnace with a shaft for charge material , in which impurities of the charge material can be removed , and at least one furnace chamber which is connected to the shaft of the first shaft furnace and has a first heat supply device , wherein at least one second shaft furnace with a shaft for charge material , in which impurities of the charge material can be removed , the furnace chamber being connected to the shaft of the second shaft furnace and being arranged between the shafts in such a manner that the furnace chamber forms a main melting chamber in which the molten bath is located during operation.2. The multi-chamber melting furnace according to claim 1 , wherein the furnace chamber and the lower end of the shafts are directly connected to each other.3. The multi-chamber melting furnace according to claim 1 , wherein the furnace chamber and the shafts are arranged laterally next to each other.4. The multi-chamber melting furnace according to claim 1 , wherein the furnace chamber and the shafts each have longitudinal sides adjoining each other claim 1 , the furnace chamber and the shafts being connected to ...

Подробнее
Номер записи: 17
18-01-2018 дата публикации

CONTINUOUS CASTING DEVICE FOR SLAB COMPRISING TITANIUM OR TITANIUM ALLOY

Номер: US20180015534A1
Автор: Kanahashi Hidetaka, KUROSAWA Eisuke, Nakaoka Takehiro, Oyama Hideto
Принадлежит: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)

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 ...

Подробнее
Номер записи: 18
21-01-2021 дата публикации

Tuyere for a basic oxygen furnace

Номер: US20210017616A1
Автор: Anandkumar Makwana, Anup Vasant Sane, Gregory J. Buragino, Michael David Buzinski
Принадлежит: Air Products and Chemicals Inc

A tuyere comprising an inner tube including a lower section having a first diameter, an upper section having a second diameter smaller than the first diameter, and a converging transition section having a converging angle Θ from 15° to 35° connecting the lower section to the upper section, the inner tube terminating in an inner nozzle at a downstream end of the upper section; and an outer tube surrounding the inner tube so as to create an annulus there between, the outer tube including a lower section having a third diameter larger than the first diameter, an upper section having a fourth diameter smaller than the third diameter but larger than the second diameter, and a converging transition section having connecting the lower section to the upper section, the outer tube terminating in an outer nozzle at a downstream end of the upper section.

Подробнее
Номер записи: 19
25-01-2018 дата публикации

SYSTEM AND METHOD FOR MELTING LIGHT GAUGE METAL STOCK

Номер: US20180023894A1
Автор: Chandler Richard C.
Принадлежит:

An exemplary furnace system for melting stock metal includes a main hearth and a side well subsystem, which includes a melting well disposed downstream of the main hearth for receiving flow from the main hearth, an input flow inducer disposed upstream of the melting well and downstream of the main hearth, and an output flow inducer disposed downstream of the melting well and upstream of the main hearth. The input flow inducer drives molten metal into the melting well, thereby forming a differential metal head in the melting well. The output flow inducer evacuates molten metal from an output conduit, thereby reducing counter-pressure at an output port of the melting well communicating with the output conduit. This allows atmospheric pressure to add to the differential metal head in the melting well, resulting in an increase in productivity of the side well subsystem and of the furnace system as a whole. 1. A method of melting and recovering metal with a furnace system , comprising the steps of:supplying a molten metal bath;forcibly directing molten metal from the molten metal bath into a melting well at an input port of the melting well under motive force applied to the molten metal by an input flow inducer;adding pieces of solid metal to the melting well, the pieces at least partially melting in the molten metal in the melting well, molten metal flowing out of the melting well via an output flow conduit, the output flow conduit having a first end opening to and fluidly coupled to the melting well at the output port of the melting well and the output flow conduit having a second end terminating at a discharge opening of the output flow conduit through which molten metal is discharged from the output flow conduit into the molten metal bath, the discharge opening of the output flow conduit upstream of a point in the furnace system from which molten metal is tapped or recovered, and the output flow conduit establishing an enclosed passage between the output port of the ...

Подробнее
Номер записи: 20
04-02-2016 дата публикации

MOLTEN METAL TRANSFER SYSTEM AND ROTOR

Номер: US20160031007A1
Автор: Cooper Paul V., Fontana Vincent D.
Принадлежит:

The invention relates to systems for transferring molten metal from one structure to another. Aspects of the invention include a transfer chamber constructed inside of or next to a vessel used to retain molten metal. The transfer chamber is in fluid communication with the vessel so molten metal from the vessel can enter the transfer chamber. A powered device, which may be inside of the transfer chamber, moves molten metal upward and out of the transfer chamber and preferably into a structure outside of the vessel, such as another vessel or a launder. 1. A method of forming a transfer well in a vessel for containing molten metal , the method comprising the steps of:(a) creating a form adjacent an interior wall of the vessel, the form defining a transfer well having an outer wall, a top surface, a bottom surface, an opening in the top surface, and an internal cavity, the internal cavity for holding molten metal and having an upper portion and a lower portion, a restricted area in the lower portion of the internal cavity, an uptake section above the restricted area and in communication with the opening in the top surface, and;(b) placing refractory material in the form to create the transfer well, wherein the interior wall of the vessel forms part of the outer wall of the transfer well.2. The method of wherein there is an opening in the outer wall beneath the restricted area.3. A method of forming a first structure for the transfer of molten metal from the first structure to a second structure claim 1 , the method comprising the steps of: forming a transfer chamber in the first structure claim 1 , the transfer chamber having an opening claim 1 , an uptake section above the opening claim 1 , and an outlet in communication with the uptake section and above the opening and leading out of the first structure; wherein the transfer chamber includes a restricted section at or above the opening claim 1 , but below the outlet claim 1 , the restricted section configured to ...

Подробнее
Номер записи: 21
01-02-2018 дата публикации

THERMOPLASTIC KETTLE AUXILIARY HEAT EXCHANGER SYSTEM

Номер: US20180031320A1
Автор: Shea James P.
Принадлежит:

An auxiliary heating means for improving the melting efficiency of melter kettles used to melt thermoplastic pavement marking materials. The auxiliary heating means includes a tube assembly through which thermoplastic material received from the bottom of the melter kettle is transferred to the top of the melter kettle. The tube assembly comprises an odd number of tubes having augers therein. The tube assembly is coupled to a side portion of the melter kettle and located within a heat chamber through which hot combustion gases from a combustion chamber at the bottom of the melter kettle flow and transfer heat into the tube assembly. The heat chamber comprises an extended portion of a heat chamber that surrounds the melter kettle. 1. In a melter kettle for melting thermoplastic pavement marking material wherein the melter kettle is provided with a combustion chamber the improvement comprising a tube assembly coupled to a side portion of the melter kettle and located within a heat chamber that surrounds the melter kettle through which heat chamber hot combustion gases from the combustion chamber can flow upward around the tube assembly , the tube assembly including an odd number of vertical tubes that are connected at the tops and bottom in a serpentine manner , the tube assembly is coupled at one end to a lower portion of the melter kettle and coupled at another end to the top of the melter kettle for receiving molten thermoplastic from the lower portion of the melter kettle and discharging molten thermoplastic material to the top of the melter kettle.2. The melter kettle of claim 1 , wherein the heat chamber includes an extended portion that surrounds the tube assembly.3. The melter kettle of claim 1 , further including an insulation chamber that surrounds the tube assembly.4. The melter kettle of claim 1 , wherein each tube of the tube assembly contains an auger for transferring molten thermoplastic material therethrough.5. The melter kettle of claim 4 , wherein a ...

Подробнее
Номер записи: 22
11-02-2016 дата публикации

METHOD OF PROCESSING MOLTEN METALS AND ALLOYS

Номер: US20160040936A1
Автор: Amusin Lev
Принадлежит:

A technological method of treatment of two or more materials forming a melt is disclosed. The melt may be subjected to turbulence under simultaneous combined action of resonance and hydraulic impact. Turbulence occurs when parameters of compelled vibration equalize with natural oscillations of the melt which is a function of geometric parameters of the crucible, the rheological, physical and mechanical characteristic of the two or more materials. An application of a low frequency mechanical vibration with an amplitude between 0.5-2.5 mm, frequency between 30-300 Hz, and acceleration between 15-50 G (Gravitational acceleration) may be performed on a hermetically sealed cylindrical crucible, vertically installed on a vibration unit. The heat for melting may be generated by a furnace (e.g., induction heater) installed around vibrating crucible. Various combinations of materials, batch and continuous processes are possible. 1. A molten metal processing machine for mixing two or more materials , the machine comprising:a crucible defining an interior circular surface and opposed flat inner surfaces which defines an interior space for holding the two or more materials to be mixed, the opposed flat inner surfaces being parallel to each other, the length of the crucible defining a longitudinal axis which is perpendicular to the opposed flat inner surfaces;a vibration unit attached to the crucible and operative to vibrate the crucible until resonance is reached with the two or more materials so that the two or more materials held in the interior space of the crucible experiences a turbulence phenomenon, the vibration unit defining a single vibration direction which is parallel to the longitudinal axis of the crucible;a heater attached or adjacent to the crucible for maintaining the two or more materials held in the interior space in the molten state while the vibration unit vibrates the crucible.2. The machine of wherein the vibration direction is vertical.3. The machine of ...

Подробнее
Номер записи: 23
09-02-2017 дата публикации

IMMERSION HEATER FOR MOLTEN METAL

Номер: US20170038146A1
Автор: Cooper Paul V.
Принадлежит:

The invention relates to a device for heating molten metal by the use of a heater that can be immersed into the molten metal. This immersion heater includes an outer cover formed of one or more materials resistant to the molten metal in which the immersion heater is to be used, and a heating element inside of the outer cover, where the heating element is protected from contacting the molten metal. 1. A device comprising:a vessel for containing molten metal, the vessel having a length, a width, a top surface, a first chamber and a second chamber;a plurality of immersion heaters positioned in line across the width of the vessel, each of the plurality of immersion heaters comprising an outer cover of material resistant to molten metal and a heating element inside of the outer cover, the heating element connectable to an energy source, the outer cover comprised of a material formulated to be resistant to the molten metal, wherein the outer cover protects the heating element from contacting the molten metal when the immersion heater is positioned in the molten metal; andwherein the plurality of immersion heaters divides the vessel into the first chamber and the second chamber.2. The device of claim 1 , wherein the energy source of each heating element is a source of electricity.3. The device of claim 1 , wherein each heating element is one or more wire coils.4. The device of claim 1 , wherein each immersion heater is rectangular.5. The device of claim 1 , wherein each outer cover is comprised of one or more of graphite and ceramic.61. The device of claim 1 , wherein each outer cover is molded over each heating element.7. The device of claim 1 , wherein each outer cover has a cavity and the heating element corresponding to each outer cover is positioned in the cavity.8. The device of claim 1 , wherein the vessel has a top surface and further comprises one or more insulated covers to cover a portion of the top surface of the vessel.9. The device of claim 8 , wherein at ...

Подробнее
Номер записи: 24
18-02-2016 дата публикации

ROTARY DEGASSERS AND COMPONENTS THEREFOR

Номер: US20160047602A1
Автор: Cooper Paul V.
Принадлежит:

Disclosed are degassers, couplings, impeller shafts and impellers for use in molten metal. One such coupling transfers gas into an impeller shaft, the coupling having a smooth, tapered internal surface to align with a corresponding surface on the impeller shaft and help prevent gas leakage and to assist in preventing damage to the impeller shaft. Improved impellers for shearing and mixing gas are also disclosed, as is a degasser including one or more of these components. 1. A shaft for use in a rotary degasser , the shaft comprising:a first end, a second end, an outer sidewall, and an inner passage for transferring gas, wherein the first end is tapered, and at least one groove is formed adjacent the tapered first end, wherein the tapered first end mates with an inner tapered portion in a coupling, and one or more retainers that are threadingly received in the coupling are each threadingly received in an opening of the coupling positioned such that each of the one or more retainers is positioned to be received in and to apply pressure to one or more of the grooves, in order to apply driving force from the coupling to the shaft.2. The shaft of that has a plurality of grooves.3. The shaft of that is comprised of graphite.4. The shaft of wherein the grooves are not vertically aligned.5. The shaft of wherein the at least one groove is vertical.6. The shaft of wherein the at least one groove is circular.7. The shaft of that is coupled with a metal coupling having a first claim 1 , tapered end that receives the tapered first end of the shaft and a second end that receives the adjacent portion of the shaft containing the at least one groove claim 1 , the second end including one or more openings through which retainers may be received to contact at least one of the one or more grooves to apply driving force to the shaft.8. The shaft of wherein there is a plurality of grooves and a plurality of openings with each opening corresponding to one groove.9. The shaft of wherein ...

Подробнее
Номер записи: 25
16-02-2017 дата публикации

VESSEL TRANSFER SYSTEMS AND DEVICES

Номер: US20170045298A1
Автор: Cooper Paul V.
Принадлежит:

A system for removing molten metal from a vessel is disclosed. The system includes a pump and a refractory casing that houses the pump. As the pump operates it moves molten metal upward through an uptake section of the casing until it reaches an outlet wherein it exits the vessel. The outlet may be attached to a launder. Another system uses a wall to divide a cavity of the chamber into two portions. The wall has an opening and a pump pumps molten metal from a first portion into a second portion until the level in the second portion reaches an outlet and exits the vessel. 1. A system pump for moving molten metal out of a vessel having a first section and a second section , the system including:(a) a motor, a super structure that supports the motor, a drive shaft having a first end connected to the motor and a second end connected to a rotor, and a discharge;(b) a bracket on the superstructure, the bracket configured to attach to a mounting flange, wherein the mounting flange is attached to the vessel, such that when the bracket is connected to the mounting flange, the discharge aligns with an opening that leads from the first section to the second section;(c) a vessel outlet formed at an angle of greater than 30 degrees to the pump discharge.2. The system of that further includes a launder in fluid communication with the vessel outlet.3. The system of wherein the launder has a bottom surface and the outlet has a bottom surface that aligns with the launder bottom surface.4. The system of wherein the super structure is a steel platform.5. The system of wherein the vessel outlet is formed at an angle of greater than 45 degrees to the pump discharge.6. The system of wherein the vessel outlet is formed at an angle of greater than 75 degrees to the pump discharge.7. The system of wherein the vessel outlet is formed at an angle of 90 degrees to the pump discharge.8. The system of wherein the vessel includes a front side with one or more front flanges on the front side claim ...

Подробнее
Номер записи: 26
25-02-2016 дата публикации

Method and apparatus for moving molten metal

Номер: US20160052050A1
Автор: Andrew Ivanovich Gulayev, Dmitry Nikolaevich Ivanov, Evgeny Pavlov, Pavel Olegovich Gasanov
Принадлежит: Individual

Methods and apparatus for moving a molten metal are provided in which the electromagnetic inductor includes at least two pairs of electromagnetic pole pairs and in which a first magnetic field component is generated between one pole in a first electromagnetic pole pair and a second pole in a different electromagnetic pole pair, and in which a second magnetic field component is generated between the two poles in one or more electromagnetic pole pairs, the second magnetic field component thereby generating one or more eddy currents in the molten metal. Those eddy currents are generally parallel to the surface of the molten metal and so have greater magnitude and extent that eddy currents perpendicular to the surface. Such eddy currents provide useful additional movement to the molten metal, for instance for stirring purposes, particularly when the depth of molten metal is small.

Подробнее
Номер записи: 27
25-02-2016 дата публикации

Support and compression assemblies for curvilinear molten metal transfer device

Номер: US20160052053A1
Автор: Eric W. Reeves, Randal Guy Womack, Richard Allen WAYMENT, Richard Scott Bruski, Robert Bruce Wagstaff
Принадлежит: Novelis Inc Canada

A curvilinear metal transfer device with support and compression assemblies that help maintain a constant force on the transfer device's metal outer casing and refractory as the outer casing and refractory expand and contract due to temperature fluctuations. In one embodiment, the support assemblies are configured to apply force to the refractory to keep the refractory in tension with the outer casing to suspend the refractory relative the outer casing. Also disclosed are clamp plates that help hold the refractory in place, and nested lids that cover the curvilinear metal transfer device.

Подробнее
Номер записи: 28
25-02-2016 дата публикации

Mixing cold hearth metallurgical system and process for producing metals and metal alloys

Номер: US20160052060A1
Автор: ANDREW VAN OS LaTOUR, Christopher Paul Eonta, Scott Weston Steiner
Принадлежит: Molyworks Materials Corp

A metallurgical system for producing metals and metal alloys includes a fluid cooled mixing cold hearth having a melting cavity configured to hold a raw material for melting into a molten metal, and a mechanical drive configured to mount and move the mixing cold hearth for mixing the raw material. The system also includes a heat source configured to heat the raw material in the melting cavity, and a heat removal system configured to provide adjustable insulation for the molten metal. The mixing cold hearth can be configured as a removal element of an assembly of interchangeable mixing cold hearths, with each mixing cold hearth of the assembly configured for melting a specific category of raw materials. A process includes the steps of providing the mixing cold hearth, feeding the raw material into the melting cavity, heating the raw material, and moving the mixing cold hearth during the heating step.

Подробнее
Номер записи: 29
25-02-2016 дата публикации

ROTOR AND ROTOR SHAFT FOR MOLTEN METAL

Номер: US20160053762A1
Автор: Cooper Paul V.
Принадлежит:

A molten metal rotor receives and retains an end of a molten metal rotor shaft. The rotor shaft has one or more projections at the end received in the rotor. The rotor has an inner cavity, a top surface with an opening leading to the inner cavity, and at least one abutment. The opening includes one or more portions for allowing each projection to pass through the opening and into the inner cavity. The rotor and/or shaft are then rotated so at least one of the outwardly-extending projections is under the top surface of the rotor and is against an abutment. A molten metal pump, rotary degasser scrap melter or other device used in molten metal may utilize a rotor/shaft combination as disclosed herein. 1. A rotor having a cavity for receiving an end of a rotor shaft , the rotor cavity having a top surface with an opening through which the end of the rotor shaft passes and is received in the cavity , the opening leading to the cavity and having at least one elongated section , and the cavity including at least one abutment in the cavity.2. The rotor of wherein the opening includes a plurality of elongated sections in the opening.3. The rotor of that has three elongated sections.4. The rotor of wherein the cavity has a diameter and the opening has a width claim 1 , the width of the opening being less than the diameter of the cavity.5. The rotor of wherein the opening has a first width that does not include the elongated section and a second width that includes the elongated section claim 1 , the first width being less than the second width.6. The rotor of wherein the cavity has a diameter and the first width and second width are each less than the diameter.7. The rotor of wherein the top surface comprises ceramic.8. The rotor of that comprises one or more of the group comprising ceramic and graphite.9. A rotor shaft having a first end that is received in a coupling and a second end for connecting to a rotor claim 1 , the second end having at least one outward-extending ...

Подробнее
Номер записи: 30
23-02-2017 дата публикации

DROSS MANAGEMENT SYSTEM AND METHOD

Номер: US20170051381A1
Автор: Herbert James
Принадлежит:

A dross processing assembly includes a stirring station at which dross in a first dross recovery vessel is stirred and a pressing station at which previously stirred dross in a second dross recovery vessel is pressed simultaneously with the stirring of the dross in the first dross recovery vessel. The stirring station and the pressing station may be commonly housed in an enclosure. A conveyor system may advance dross recovery vessels through the dross processing assembly for continuous dross processing. 1. A dross processing assembly , comprising:a stirring station at which dross in a first dross pan is stirred; anda pressing station at which dross in a second dross pan that was previously stirred by the stirring station is pressed simultaneously with the stirring of the dross in the first dross pan.2. The dross processing assembly of claim 1 , further comprising an enclosure in which the stirring station and the pressing station are commonly housed.3. The dross pressing assembly of claim 2 , wherein fumes and dust from the stirring station and the pressing station are exhausted from the enclosure together.4. The dross processing assembly of claim 1 , further comprising a conveyor system configured claim 1 , following a stirring cycle of the dross in the first dross pan and a pressing cycle of the dross in the second dross pan claim 1 , to advance the second dross pan to a retrieval area claim 1 , advance the first dross pan from the stirring station to the pressing station claim 1 , and advance a third dross pan from a staging area to the stirring station.5. The dross processing assembly of claim 4 , further comprising a first door between the staging area and the stirring station and a second door between the pressing station and the retrieval area claim 4 , wherein the doors are operated in coordination with the conveyor system.6. The dross processing assembly of claim 1 , further comprising a conveyor system configured to move dross pans from the stirring ...

Подробнее
Номер записи: 31
17-03-2022 дата публикации

MOLTEN METAL TRANSFER STRUCTURE AND METHOD

Номер: US20220080498A1
Автор: Cooper Paul V., Fontana Vincent D.
Принадлежит: Molten Metal Equipment Innovations, LLC

The invention relates to systems for transferring molten metal from one structure to another. Aspects of the invention include a transfer chamber constructed inside of or next to a vessel used to retain molten metal. The transfer chamber is in fluid communication with the vessel so molten metal from the vessel can enter the transfer chamber. A powered device, which may be inside of the transfer chamber, moves molten metal upward and out of the transfer chamber and preferably into a structure outside of the vessel, such as another vessel or a launder. 1. A method for transferring molten metal from a vessel , wherein the vessel comprises: (a) a cavity configured for retaining molten metal; (b) an intake section in communication with the cavity; (c) a transfer well in communication with the intake section; (d) an outlet in communication with the transfer well; and (e) one or more brackets attached to the vessel , wherein the brackets are configured to position an insert next to an outside surface of the vessel such that an inlet of the insert aligns with the outlet of the vessel; the method comprising the steps of: positioning the insert next to the outside surface of the vessel so that the inlet of the insert aligns with the outlet of the vessel , and operating a molten metal pump positioned in the insert to move molten metal from the vessel into the insert.2. The method of claim 1 , wherein the pump comprises a rotor and drive shaft and that further includes the step of positioning the rotor and the drive shaft at least partially in an uptake section of the insert.3. The method of claim 1 , wherein the insert inlet has a cross-sectional area and the insert includes an uptake section that has a second cross-sectional area claim 1 , wherein the second cross-sectional area is larger than the cross-sectional area.4. The method of claim 3 , wherein the insert uptake section is cylindrical.5. The method of claim 3 , wherein the insert uptake section comprises a first ...

Подробнее
Номер записи: 32
09-03-2017 дата публикации

Ultrasonic Probes with Gas Outlets for Degassing of Molten Metals

Номер: US20170067134A1
Автор: Victor F. Rundquist
Принадлежит: Southwire Co LLC

Ultrasonic probes containing a plurality of gas delivery channels are disclosed, as well as ultrasonic probes containing recessed areas near the tip of the probe. Ultrasonic devices containing these probes, and methods for molten metal degassing using these ultrasonic devices, also are disclosed.

Подробнее
Номер записи: 33
24-03-2016 дата публикации

METHOD OF FORMING TRANSFER WELL

Номер: US20160082507A1
Автор: Cooper Paul V., Fontana Vincent D.
Принадлежит:

The invention relates to systems for transferring molten metal from one structure to another. Aspects of the invention include a transfer chamber constructed inside of or next to a vessel used to retain molten metal. The transfer chamber is in fluid communication with the vessel so molten metal from the vessel can enter the transfer chamber. A powered device, which may be inside of the transfer chamber, moves molten metal upward and out of the transfer chamber and preferably into a structure outside of the vessel, such as another vessel or a launder. 1. A method of forming a transfer well in a vessel for containing molten metal , the method comprising the steps of:(a) creating a form adjacent a side wall of the vessel, the form defining a transfer well having an outer wall, a top surface, a bottom surface, an opening in the top surface, and an internal cavity, the internal cavity having an uptake section, and a restricted area below or as part of the uptake section, and an outlet above the restricted area and in communication with the uptake section;(b) placing refractory material in the form to create the transfer well, wherein the vessel side wall adjacent the transfer well forms part of the outer wall of the transfer well; and(c) forming an opening near a bottom of the transfer wall, the opening in communication with the uptake section.2. The method of wherein the opening comprises all or part of the restricted area.3. A method of forming a first structure for the transfer of molten metal from the first structure to a second structure claim 1 , the method comprising the steps of: forming a transfer chamber in the first structure claim 1 , the transfer chamber having an opening claim 1 , an uptake section above the opening claim 1 , and an outlet in communication with the uptake section and above the opening and leading out of the first structure; wherein the transfer chamber includes a section at or above the opening claim 1 , but below the outlet claim 1 , ...

Подробнее
Номер записи: 34
23-03-2017 дата публикации

Non-Magnetic Steel Structure For A Steel Or Aluminium Making Process

Номер: US20170080485A1
Автор: Eriksson Jan-Erik, Svahn Conny, Teng Lidong
Принадлежит:

A non-magnetic steel structure for a steel or aluminium making process, which non-magnetic steel structure is arranged to enable penetration of a magnetic field from an electromagnetic stirrer or electromagnetic brake into a melt in a vessel for molten metal, wherein the non-magnetic steel structure includes manganese in the range 12-40 mass %. 1. A fully austenitic high manganese non-magnetic steel structure for a steel or aluminium making process , wherein the non-magnetic steel structure is one of a housing of an electromagnetic stirrer or electromagnetic brake , a window of a ladle , a window of an electromagnetic arc furnace or an aluminium furnace , a window of a casting mould , and a strand support roller for supporting semi-solidified strands , and wherein the non-magnetic steel structure consists of manganese in the range 12-40 mass % , carbon in the range 0.5-1.0 mass % , aluminium in the range 0.1-1.5 mass % , silicon in the range 0.05-1.5 mass % , the remaining content of the non-magnetic steel structure being composed of iron and impurities.2. The non-magnetic steel structure as claimed in claim 1 , wherein the manganese is in the range 12-30 mass %.3. The non-magnetic steel structure as claimed in claim 1 , wherein the manganese is in the range 16-30 mass %.4. The non-magnetic steel structure as claimed in claim 1 , wherein the manganese is in the range 18-30 mass %.5. The non-magnetic steel structure as claimed in claim 1 , wherein the manganese is in the range 20-30 mass %.6. The non-magnetic steel structure as claimed in wherein the manganese is in the range 20-25 mass %.7. A vessel for molten metal for a continuous casting process claim 1 , wherein the vessel for molten metal is one of an electric arc furnace and a ladle claim 1 , which vessel comprises:a refractory material forming an internal lining of the casting vessel, anda non-magnetic steel structure wherein the non-magnetic steel structure is one of a housing of an electromagnetic stirrer ...

Подробнее
Номер записи: 35
23-03-2017 дата публикации

ROTARY DEGASSERS AND COMPONENTS THEREFOR

Номер: US20170082368A1
Автор: Cooper Paul V.
Принадлежит:

Disclosed are degassers, couplings, impeller shafts and impellers for use in molten metal. One such coupling transfers gas into an impeller shaft, the coupling having a smooth, tapered internal surface to align with a corresponding surface on the impeller shaft and help prevent gas leakage and to assist in preventing damage to the impeller shaft. Improved impellers for shearing and mixing gas are also disclosed, as is a degasser including one or more of these components. 1. A shaft that cannot be threadingly connected to a corresponding coupling for use in a rotary degasser , the shaft comprising:a first end, a second end, an outer sidewall, a center portion between the first end and the second end, and an inner passage for transferring gas, wherein the first end is tapered and not threaded, and one or more grooves that are not threads formed adjacent the tapered first end between the center portion and the tapered first end; wherein the shaft is configured to be received in the corresponding coupling so that the tapered first end mates with an inner tapered portion in the coupling, and one or more retainers are received in the coupling such that each is positioned to be pressed against one of the one or more grooves, in order to apply driving force from the coupling to the shaft.2. The shaft of that has a plurality of grooves.3. The shaft of wherein the grooves are not vertically aligned.4. The shaft of wherein the at least one groove is vertical.5. The shaft of wherein the at least one groove is circular.6. The shaft of wherein at least two of the plurality of grooves are each configured to align with an opening on the coupling.7. The shaft of wherein the second end of the shaft is threaded.8. The shaft of wherein the second end of the shaft is configured to threadingly connect to a rotor.9. The shaft of wherein the taper is at an angle between 20° and 45°.10. The shaft of wherein the one or more grooves are not vertically aligned.11. The shaft of wherein the one ...

Подробнее
Номер записи: 36
31-03-2016 дата публикации

PUMP STRUCTURE FOR USE IN TRANSFER CHAMBER

Номер: US20160089718A1
Автор: Cooper Paul V., Fontana Vincent D.
Принадлежит:

The invention relates to systems for transferring molten metal from one structure to another. Aspects of the invention include a transfer chamber constructed inside of or next to a vessel used to retain molten metal. The transfer chamber is in fluid communication with the vessel so molten metal from the vessel can enter the transfer chamber. A powered device, which may be inside of the transfer chamber, moves molten metal upward and out of the transfer chamber and preferably into a structure outside of the vessel, such as another vessel or a launder. 1. A method of building a molten metal pump to fit within a transfer well in a vessel having a restricted area in which a rotor is to be positioned , and a top surface , the method comprising the steps of:(a) reviewing at least a measurement of the height of the transfer well; and(b) constricting a molten metal pump that includes a motor, a superstructure, a rotor, and a shaft connecting the motor to the rotor, the pump configured so when the superstructure is positioned on the top surface, the rotor is positioned at least partially in the restricted area.2. The method of wherein the rotor is positioned entirely in the restricted area.3. The method of that further includes the step of adding one or more structures to the superstructure to assist it in being supported by the top surface.4. The method of wherein the one or more structures are one more brackets.5. The method of wherein the pump does not have support posts or a pump housing.6. The method of wherein the drive shaft comprises a motor shaft coupled to a rotor shaft claim 1 , wherein the motor shaft is connected to the motor and the rotor shaft is connected to the rotor.7. The method of that further includes the step of reviewing the dimensions of the restricted area and configuring the rotor to fit at least partially within the restricted area.8. The method of wherein the rotor fits entirely within the restricted area.9. The method of wherein the restricted ...

Подробнее
Номер записи: 37
30-03-2017 дата публикации

CONTINUOUS CASTING DEVICE FOR SLAB COMPRISING TITANIUM OR TITANIUM ALLOY

Номер: US20170087625A1
Автор: Kanahashi Hidetaka, KUROSAWA Eisuke, Nakaoka Takehiro, Oyama Hideto
Принадлежит: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)

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 ...

Подробнее
Номер записи: 38
31-03-2016 дата публикации

METHOD OF TRANSFERRING MOLTEN METAL FROM A VESSEL

Номер: US20160091251A1
Автор: Cooper Paul V., Fontana Vincent D.
Принадлежит:

The invention relates to systems for transferring molten metal from one structure to another. Aspects of the invention include a transfer chamber constructed inside of or next to a vessel used to retain molten metal. The transfer chamber is in fluid communication with the vessel so molten metal from the vessel can enter the transfer chamber. A powered device, which may be inside of the transfer chamber, moves molten metal upward and out of the transfer chamber and preferably into a structure outside of the vessel, such as another vessel or a launder. 1. A method of transferring molten metal from a first structure to a second structure , the method comprising the steps of:(a) generating a flow of molten metal into a first structure having a bottom surface, and a transfer chamber therein, the transfer chamber having an opening, an uptake section above the opening, and an outlet in communication with the uptake section and above the opening and leading out of the first structure; wherein the bottom surface of the transfer chamber is below the uptake section and the outlet; and(b) generating a flow of molten metal into the opening, and up the uptake section, where it exits the outlet and exits the first structure.2. The method of that further includes the step of:(a) positioning a molten metal pump in the first structure; and(b) activating the pump to move molten metal into the opening, up the uptake section, and out of the outlet.3. The method of wherein the pump is located in the transfer chamber.4. The method of wherein the pump includes a rotor.5. The method of wherein the transfer chamber has an inner wall and there is a 1/32″ to ¼″ clearance between the rotor and the inner wall.6. The method of wherein the pump is a variable speed pump.7. The method of wherein the first structure has a top surface above the outlet and the top surface has one or more brackets to position the pump in the transfer chamber.8. The method of wherein the pump includes one or more ...

Подробнее
Номер записи: 39
29-03-2018 дата публикации

Method and device for driving conductive metal

Номер: US20180087840A1
Автор: Kenzo Takahashi
Принадлежит: Individual

A method of driving conductive molten metal and a melting furnace, the method including making direct current flow vertically between a first electrode, and applying a magnetic field radially toward the center of a melting chamber from the outside of the melting furnace or toward the outside of the melting furnace from the center of the melting chamber to apply torque. The method further includes rotating the molten metal by the torque to discharge the molten metal to a holding furnace, which is provided on the melting chamber, from an outlet opening of a partition plate provided between the melting chamber and the holding furnace and to suck the molten metal, which is present in the holding furnace, from an inlet opening of the partition plate.

Подробнее
Номер записи: 40
26-06-2014 дата публикации

Method And Arrangement For Vortex Reduction In A Metal Making Process

Номер: US20140175715A1
Автор: Carlsson Christer, Eriksson Jan-Erik, Kroon Tord, Rahmani Mohamed Ali, Widlund Ola, Yang Hongliang, Zhang Xiaojing
Принадлежит:

A method for reducing vortex formation in molten metal when bottom tapping the molten metal from a metallurgical vessel in a metal making process. The method includes the steps of tapping the molten metal via a tapping hole in the metallurgical vessel, and providing a flow of the molten metal in the metallurgical vessel while tapping via a time-varying electromagnetic field applied to the metallurgical vessel, the flow of the molten metal being such that it constantly moves vortices in the molten metal away from a tapping hole region during the tapping to thereby prevent accumulation of the vortices for vortex formation over the tapping hole. It is also presented an arrangement for carrying out the method. 1. A method for reducing vortex formation in molten metal when bottom tapping the molten metal from a metallurgical vessel in a metal making process , wherein the method comprises:tapping the molten metal via a tapping hole in the metallurgical vessel, andproviding a flow of the molten metal in the metallurgical vessel while tapping by means of a time-varying electromagnetic field applied to the metallurgical vessel and provided by an electromagnetic stirrer, wherein the time-varying electromagnetic field provides a forced convection of the molten metal in the metallurgical vessel, the flow of the molten metal being such that it constantly moves vortices in the molten metal away from a tapping hole region of the metallurgical vessel during the tapping to thereby prevent accumulation of the vortices for vortex formation over the tapping hole.2. The method as claimed in claim 1 , wherein the molten metal flow is transverse to a central axis of the tapping hole.3. The method as claimed in claim 1 , wherein the molten metal flows towards a first inner wall portion of the metallurgical vessel at the bottom of the metallurgical vessel and towards a second inner wall portion opposite the first inner wall portion at the surface of the molten metal.4. The method as claimed ...

Подробнее
Номер записи: 41
21-04-2016 дата публикации

ROTARY INJECTOR AND PROCESS OF ADDING FLUXING SOLIDS IN MOLTEN ALUMINUM

Номер: US20160108496A1
Автор: Breton Francis, Langlais Joseph, Munger Serge, Waite Peter Donald
Принадлежит:

A rotary injector comprising an elongated shaft having a proximal end and a distal end, and an impeller at the distal end of the elongated shaft, the elongated shaft and the impeller being collectively rotatable during operation around an axis of the shaft, the rotary injector being hollow and having an internal supply conduit extending along the shaft and across the impeller, the supply conduit having an inlet at the proximal end of the shaft, a main portion extending from the inlet to a discharge portion, the discharge portion extending to an axial outlet, the discharge portion having a narrow end connecting the main portion of the supply conduit and a broader end at the axial outlet. 1. A rotary injector comprising an elongated shaft having a proximal end and a distal end , and an impeller at the distal end of the elongated shaft , the elongated shaft and the impeller being collectively rotatable during operation around an axis of the shaft , the rotary injector being hollow and having an internal supply conduit extending along the shaft and across the impeller , the supply conduit having an inlet at the proximal end of the shaft , a main portion extending from the inlet to a discharge portion , the discharge portion extending to an axial outlet , the discharge portion having a narrow end connecting the main portion of the supply conduit and a broader end at the axial outlet.2. The rotary injector of wherein the impeller has blades external to and surrounding the discharge portion.3. The rotary injector of wherein the blades are in a transversal plane coinciding with the axial position of the discharge portion.4. The rotary injector of wherein the discharge portion has a truncated conical shape.5. The rotary injector of wherein the axial outlet has a sharp edge.6. The rotary injector of wherein the discharge portion has an angle of between about 5 and 20° relative the shaft axis.7. The rotary injector of wherein the discharge portion has an angle of between 5 and ...

Подробнее
Номер записи: 42
29-04-2021 дата публикации

DROSS MANAGEMENT SYSTEM AND METHOD

Номер: US20210123118A1
Автор: Herbert James
Принадлежит: ALTEK Europe Ltd.

A dross processing assembly includes a stirring station at which dross in a first dross recovery vessel is stirred and a pressing station at which previously stirred dross in a second dross recovery vessel is pressed simultaneously with the stirring of the dross in the first dross recovery vessel. The stirring station and the pressing station may be commonly housed in an enclosure. A conveyor system may advance dross recovery vessels through the dross processing assembly for continuous dross processing. 110-. (canceled)11. A method of recovering aluminum from dross , the method comprising:conveying in a dross processing assembly a first dross pan comprising stirred dross to a pressing station;wherein the dross in the first dross pan was stirred at a stirring station;positioning a second dross pan comprising dross at the stirring station; andsimultaneously stirring the dross in the second dross pan at the stirring station and pressing the dross in the first dross pan at the pressing station.12. The method of claim 11 , wherein the conveying and the positioning are carried out simultaneously.13. The method of claim 11 , wherein the conveying and the positioning are carried out sequentially.14. The method of claim 11 , wherein the positioning further comprises conveying the second dross pan from a staging area to the stirring station.15. The method of claim 14 , wherein an automation performs at least a portion of the stirring of the dross in the second dross pan claim 14 , at least a portion of the pressing of the dross in the first dross pan claim 14 , and at least a portion of the conveying of the dross pans.16. The method of claim 15 ,wherein a first door is between the staging area and the stirring station and a second door is between the pressing station and a retrieval area, andwherein the automation operates the first door and the second door in coordination with the stirring, pressing and conveying.17. The method of claim 11 , wherein the first dross pan is in ...

Подробнее
Номер записи: 43
26-04-2018 дата публикации

MOLTEN METAL TRANSFER SYSTEM AND ROTOR

Номер: US20180111189A1
Автор: Cooper Paul V., Fontana Vincent D.
Принадлежит:

The invention relates to systems for transferring molten metal from one structure to another. Aspects of the invention include a transfer chamber constructed inside of or next to a vessel used to retain molten metal. The transfer chamber is in fluid communication with the vessel so molten metal from the vessel can enter the transfer chamber. A powered device, which may be inside of the transfer chamber, moves molten metal upward and out of the transfer chamber and preferably into a structure outside of the vessel, such as another vessel or a launder. 1. A method for transferring molten metal from a first vessel configured to contain molten metal , wherein the first vessel comprises: (a) interior walls; (b) a cavity defined by the interior walls , the cavity configured for retaining molten metal; (c) an opening in communication with the cavity; (d) an uptake section that is part of the cavity and that is above , and in fluid communication with , the opening , wherein the uptake section is configured to move molten metal upward and therethrough , and (e) an outlet above the opening , the outlet in fluid communication with the uptake section , wherein the outlet is configured so that molten metal can exit the uptake section through the outlet; and a molten metal pump having a motor , a drive shaft having a first end connected to the motor and extending into the uptake section , the drive shaft further having a second end connected to a rotor , wherein the rotor is configured to move molten metal upward into the uptake section;the method comprising the steps of: operating the pump to move molten metal in the first vessel up in to the uptake section and through the outlet.2. The method of claim 1 , wherein the first vessel further includes an inner bottom surface that slopes downward towards the opening.3. The method of that further includes the step of adding molten metal to the first vessel.4. The method of claim 1 , wherein the pump is operated continuously for a ...

Подробнее
Номер записи: 44
04-05-2017 дата публикации

Station and Method for Transferring a Metal Melt from a Melting Furnace to a Transport Crucible, and Arrangement Having Such a Station

Номер: US20170122665A1
Автор: Hommel Oliver, Walkenhorst Oliver
Принадлежит:

The invention relates to a station for transferring a metal melt from a melting furnace into a transport crucible. The station includes a docking chamber, which has a docking opening and is designed to be docked to a filling opening of the transport crucible a suctioning device, which is designed to suction a gas from the docking chamber or from the transport crucible docked to the docking chamber, and a suction pipe, which has a suction channel extending between an inlet opening and an outlet opening. The inlet opening is arranged outside the docking chamber and the outlet opening is arranged in such a way that a metal melt flowing through the suction channel and exiting from the outlet opening passes through the docking opening. 1. A station for transferring a metal melt from a melting furnace to a transport crucible , the station comprising:a docking chamber that has a docking opening and is configured for being docked with the docking opening to a filling opening of a transport crucible,a suction device that is configured to suction a gas from the docking chamber or from a transport crucible docked to the docking chamber, anda suction pipe that has a suction channel extending between an inlet opening and an outlet opening, wherein the inlet opening is arranged outside the docking chamber and the outlet opening is arranged such that a metal melt flowing through the suction channel and exiting from the outlet opening passes through the docking opening.2. The station according to claim 1 , wherein the docking chamber has an attachment pipe claim 1 , which is configured for mounting the suction pipe the docking chamber a flange connection.3. The station according to claim 2 , wherein the suction pipe has an exchangeable section claim 2 , which can be inserted through the attachment pipe into the docking chamber.4. The station according to claim 1 , wherein the suction device has a suck-in channel with a suck-in opening for suctioning a gas claim 1 , wherein the suck ...

Подробнее
Номер записи: 45
31-07-2014 дата публикации

METAL MELTING FURNACE VORTEX CHAMBER BODY AND METAL MELTING FURNACE USING THE SAME

Номер: US20140210145A1
Автор: Takahashi Kenzo
Принадлежит:

A metal melting furnace includes: a furnace body which includes a storage space storing molten metal; a vortex chamber body which includes a vortex chamber capable of communicating with the storage space of the furnace body; and a drop weir part which changes a communication state and an interruption state between the storage space and the vortex chamber, wherein the drop weir part includes a blind drop weir and an opening type drop weir which are formed as separate members, wherein at least the blind drop weir is movable up and down with respect to the vortex chamber body and is selectively positioned at an upward movement position and a downward movement position so as to switch the communication state and the interruption state, and wherein the opening type drop weir includes notches which communicate the vortex chamber and the storage space with each other in the communication state. 1. A metal melting furnace vortex chamber body with a vortex chamber capable of communicating with a storage space of a furnace body having the storage space storing molten metal , the metal melting furnace vortex chamber body comprising:a drop weir part which switches a communication state and an interruption state between the storage space and the vortex chamber,wherein the drop weir part includes a blind drop weir and an opening type drop weir which are formed as separate members,wherein at least the blind drop weir is movable up and down with respect to the vortex chamber body and is selectively positioned at an upward movement position and a downward movement position so as to switch the communication state and the interruption state, andwherein the opening type drop weir includes notches which communicate the vortex chamber and the storage space with each other in the communication state.2. The metal melting furnace vortex chamber body according to claim 1 ,wherein the blind drop weir and the opening type drop weir are all detachable from the vortex chamber body.3. The metal ...

Подробнее
Номер записи: 46
21-05-2015 дата публикации

Ultrasonic Probes With Gas Outlets for Degassing of Molten Metals

Номер: US20150135901A1
Автор: Rundquist Victor F.
Принадлежит:

Ultrasonic probes containing a plurality of gas delivery channels are disclosed, as well as ultrasonic probes containing recessed areas near the tip of the probe. Ultrasonic devices containing these probes, and methods for molten metal degassing using these ultrasonic devices, also are disclosed. 1. An ultrasonic device comprising:an ultrasonic transducer;an ultrasonic probe attached to the transducer, the probe comprising a tip and two or more gas delivery channels extending through the probe; and a gas inlet,', 'gas flow paths through the gas delivery channels, and', 'gas outlets at or near the tip of the probe., 'a gas delivery system, the gas delivery system comprising2. The ultrasonic device of claim 1 , wherein the probe comprises stainless steel claim 1 , titanium claim 1 , niobium claim 1 , a ceramic claim 1 , or a combination thereof.3. The ultrasonic device of claim 1 , wherein the probe comprises a Sialon claim 1 , a Silicon carbide claim 1 , a Boron carbide claim 1 , a Boron nitride claim 1 , a Silicon nitride claim 1 , an Aluminum nitride claim 1 , an Aluminum oxide claim 1 , a Zirconia claim 1 , or a combination thereof.4. The ultrasonic device of claim 1 , wherein:the probe comprises a Sialon;the probe comprises from three to five gas delivery channels; andthe gas outlets are at the tip of the probe.5. The ultrasonic device of claim 1 , wherein the probe is a generally cylindrical elongated probe claim 1 , and a length to diameter ratio of the elongated probe is in a range from about 5:1 to about 25:1.6. The ultrasonic device of claim 1 , wherein the probe is a generally cylindrical elongated probe claim 1 , and a ratio of the cross-sectional area of the tip of the elongated probe to the cross-sectional area of the gas delivery channels is in a range from about 30:1 to about 1000:1.7. The ultrasonic device of claim 1 , wherein the ultrasonic device further comprises a booster between the transducer and the probe claim 1 , and the gas inlet is in the ...

Подробнее
Номер записи: 47
11-05-2017 дата публикации

NONFERROUS METAL MELTING FURNACE AND METHOD FOR MELTING NONFERROUS METAL

Номер: US20170130298A1
Автор: Fujita Ken, HANAOKA Nahoko, Inuzuka Fumito, TERANISHI Matoshi, YABUMOTO Hirotoshi
Принадлежит:

A vortex chamber includes an outer circumference wall, a container, an annular shoal portion provided between the container and the outer circumference wall so as to encircle the outer circumference of the container, and a dam portion protruding upward from the upper surface of the outer circumference of the container so as to partition the container from the shoal portion. An undried nonferrous metal block is fed into the shoal portion, the block having such a size that is not completely submerged into the molten metal in the shoal portion. The fed nonferrous metal block is gradually melted to have a reduced volume of small pieces and particles of nonferrous metal, which are re-circulated in the shoal portion, flown over the dam portion, and dropped into the container, thereby forming a vortex in the container in which remaining small pieces and particles submerged into the molten metal are melted. 1. A nonferrous metal melting furnace comprising:a heating chamber for heating molten metal to increase and hold the temperature of the molten metal;a vortex chamber communicated with the heating chamber, the vortex chamber being arranged to submerge and melt in a vortex of the molten metal a nonferrous metal being fed; anda re-circulation metal pump,the re-circulation metal pump being used to feed the molten metal in the heating chamber to the vortex chamber and feed the molten metal discharged from the vortex chamber back to the heating chamber, the vortex chamber comprising:an outer circumference wall configured so as to provide a flow passage through which the molten metal is fed from a side of the heating chamber, the outer circumference wall having internally a space;a container disposed at an internal center of the outer circumference wall, and having an opening at an upper side thereof and a tapered wall of an upside down conical shape at a lower side thereof;a shoal portion annularly provided between the container and the outer circumference wall so as to ...

Подробнее
Номер записи: 48
19-05-2016 дата публикации

METALLURGICAL APPARATUS

Номер: US20160138868A1
Автор: Bosworth Paul, MIDGLEY Jason Dennis
Принадлежит:

A metallurgical apparatus comprises a vessel for holding a body of liquid metal and a circulating apparatus for circulating the body of liquid metal within the vessel. The vessel has a peripheral wall and a base, and the circulating apparatus comprises a launder that provides an open-topped flow channel and a pumping device for pumping liquid metal through the launder. The launder has an inlet end connected to a first opening in the peripheral wall and an outlet end connected to a second opening in the peripheral wall. The pumping device is configured to pump liquid metal through the launder so that liquid metal flows out of the vessel through the first opening and into the vessel through the second opening, thereby causing the body of liquid metal within the vessel to circulate. 1. A metallurgical apparatus comprising:a vessel for holding a body of liquid metal, anda circulating apparatus for circulating the body of liquid metal within the vessel,wherein the vessel has a peripheral wall and a base, and a launder that provides a flow channel and', 'a pumping device for pumping liquid metal through the launder,', 'wherein the launder has an inlet end connected to a first opening in the peripheral wall and an outlet end connected to a second opening in the peripheral wall, and', 'wherein the pumping device is configured to pump liquid metal through the launder so that liquid metal flows out of the vessel through the first opening and into the vessel through the second opening, thereby causing the body of liquid metal within the vessel to circulate., 'wherein the circulating apparatus comprises2. The metallurgical apparatus according to claim 1 , wherein the flow channel is open-topped and includes a lid that closes the flow channel and can be opened or removed to provide access to the flow channel.3. The metallurgical apparatus according to claim 1 , wherein the launder includes a heating system for heating the launder to a desired operating temperature.4. The ...

Подробнее
Номер записи: 49
30-04-2020 дата публикации

TRANSFER STRUCTURE WITH MOLTEN METAL PUMP SUPPORT

Номер: US20200130050A1
Автор: Cooper Paul V., Fontana Vincent D.
Принадлежит: Molten Metal Equipment Innovations, LLC

The invention relates to systems for transferring molten metal from one structure to another. Aspects of the invention include a transfer chamber constructed inside of or next to a vessel used to retain molten metal. The transfer chamber is in fluid communication with the vessel so molten metal from the vessel can enter the transfer chamber. A powered device, which may be inside of the transfer chamber, moves molten metal upward and out of the transfer chamber and preferably into a structure outside of the vessel, such as another vessel or a launder. 1. A method for transferring molten metal from a first vessel configured to contain molten metal , wherein the first vessel comprises: (a) interior walls; (b) a cavity defined by the interior walls , the cavity configured for retaining molten metal; (c) a first side wall and a second side wall opposite the first side wall , (d) an opening in communication with the cavity; (e) an uptake section positioned in the cavity and that is above , and in fluid communication with , the opening , wherein the uptake section is configured to move molten metal upward and therethrough , (f) one or more brackets for positioning the molten metal pump in the cavity , (g) an outlet above the opening , the outlet in fluid communication with the uptake section , wherein the outlet is configured so that molten metal can exit the uptake section through the outlet; and (h) a molten metal pump having a motor , a drive shaft having a first end connected to the motor and extending into the uptake section , the drive shaft further having a second end connected to a rotor , wherein the rotor is configured to move molten metal upward into the uptake section;the method comprising the steps of: attaching the pump to the one or more brackets, operating the pump to move molten metal in the first vessel up in to the uptake section and through the outlet.2. The method of claim 1 , wherein the first vessel further includes an inner bottom surface that ...

Подробнее
Номер записи: 50
30-04-2020 дата публикации

TRANSFER VESSEL WITH DIVIDING WALL

Номер: US20200130051A1
Автор: Cooper Paul V., Fontana Vincent D.
Принадлежит: Molten Metal Equipment Innovations, LLC

The invention relates to systems for transferring molten metal from one structure to another. Aspects of the invention include a transfer chamber constructed inside of or next to a vessel used to retain molten metal. The transfer chamber is in fluid communication with the vessel so molten metal from the vessel can enter the transfer chamber. A powered device, which may be inside of the transfer chamber, moves molten metal upward and out of the transfer chamber and preferably into a structure outside of the vessel, such as another vessel or a launder. 1. A method for transferring molten metal from a first vessel configured to contain molten metal , wherein the first vessel comprises: (a) interior walls; (b) a cavity defined by the interior walls , the cavity configured for retaining molten metal; (c) an opening in communication with the cavity; (d) an uptake section that is part of the cavity and that is above , and in fluid communication with , the opening , wherein the uptake section is configured to move molten metal upward and therethrough , (e) a wall dividing the cavity into a first section and a second section , wherein the second section includes the uptake section , (f) an outlet above the opening , the outlet in fluid communication with the uptake section , wherein the outlet is configured so that molten metal can exit the uptake section through the outlet; and (g) a molten metal pump having a motor , a drive shaft having a first end connected to the motor and extending into the uptake section , the drive shaft further having a second end connected to a rotor , wherein the rotor is configured to move molten metal upward into the uptake section;the method comprising the steps of: pumping molten metal from the first section to the second section; operating the pump to move molten metal in the first vessel up in to the uptake section and through the outlet.2. The method of claim 1 , wherein the first vessel further includes an inner bottom surface that slopes ...

Подробнее
Номер записи: 51
30-04-2020 дата публикации

VESSEL FOR MOLTEN METAL TRANSFER

Номер: US20200130052A1
Автор: Cooper Paul V., Fontana Vincent D.
Принадлежит: Molten Metal Equipment Innovations, LLC

The invention relates to systems for transferring molten metal from one structure to another. Aspects of the invention include a transfer chamber constructed inside of or next to a vessel used to retain molten metal. The transfer chamber is in fluid communication with the vessel so molten metal from the vessel can enter the transfer chamber. A powered device, which may be inside of the transfer chamber, moves molten metal upward and out of the transfer chamber and preferably into a structure outside of the vessel, such as another vessel or a launder. 1. A method for transferring molten metal from a first vessel configured to contain molten metal , wherein the first vessel comprises: (a) interior walls; (b) a cavity defined by the interior walls , the cavity configured for retaining molten metal; (c) an opening in communication with the cavity; (d) an uptake section positioned in the cavity and that is above , and in fluid communication with , the opening , and is configured to move molten metal upward and therethrough , wherein the uptake section has three walls inside of the vessel cavity and a fourth wall that is an inner surface of an outer wall of the vessel; (e) an outlet above the opening , the outlet in fluid communication with the uptake section , wherein the outlet is configured so that molten metal can exit the uptake section through the outlet; and (f) a molten metal pump having a motor , a drive shaft having a first end connected to the motor and extending into the uptake section , the drive shaft further having a second end connected to a rotor , wherein the rotor is configured to move molten metal upward into the uptake section;the method comprising the steps of: operating the pump to move molten metal in the first vessel up in to the uptake section and through the outlet.2. The method of claim 1 , wherein the first vessel further includes an inner bottom surface that slopes downward towards the opening.3. The method of that further includes the step ...

Подробнее
Номер записи: 52
30-04-2020 дата публикации

MOLTEN METAL TRANSFER VESSEL WITH PUMP

Номер: US20200130053A1
Автор: Cooper Paul V., Fontana Vincent D.
Принадлежит: Molten Metal Equipment Innovations, LLC

The invention relates to systems for transferring molten metal from one structure to another. Aspects of the invention include a transfer chamber constructed inside of or next to a vessel used to retain molten metal. The transfer chamber is in fluid communication with the vessel so molten metal from the vessel can enter the transfer chamber. A powered device, which may be inside of the transfer chamber, moves molten metal upward and out of the transfer chamber and preferably into a structure outside of the vessel, such as another vessel or a launder. 1. A method for transferring molten metal from a first vessel configured to contain molten metal , wherein the first vessel comprises: (a) interior walls; (b) a cavity defined by the interior walls , the cavity configured for retaining molten metal; (c) an opening in communication with the cavity; (d) an uptake section that is above , and in fluid communication with , the opening , wherein the uptake section is configured to move molten metal upward and therethrough , (e) an outlet above the opening , the outlet in fluid communication with the uptake section , wherein the outlet is configured so that molten metal can exit the uptake section through the outlet; (f) one or more brackets for positioning a pump in the cavity; and (g) a molten metal pump having a motor , a drive shaft having a first end connected to the motor and extending into the uptake section , the drive shaft further having a second end connected to a rotor , wherein the rotor is configured to move molten metal upward into the uptake section;the method comprising the steps of: positioning the pump in the cavity and attaching the pump to the one or more brackets, operating the pump to move molten metal in the first vessel up in to the uptake section and through the outlet.2. The method of claim 1 , wherein the first vessel further includes an inner bottom surface that slopes downward towards the opening.3. The method of that further includes the step of ...

Подробнее
Номер записи: 53
30-04-2020 дата публикации

TRANSFER SYSTEM WITH DUAL-FLOW ROTOR

Номер: US20200130054A1
Автор: Cooper Paul V., Fontana Vincent D.
Принадлежит: Molten Metal Equipment Innovations, LLC

The invention relates to systems for transferring molten metal from one structure to another. Aspects of the invention include a transfer chamber constructed inside of or next to a vessel used to retain molten metal. The transfer chamber is in fluid communication with the vessel so molten metal from the vessel can enter the transfer chamber. A powered device, which may be inside of the transfer chamber, moves molten metal upward and out of the transfer chamber and preferably into a structure outside of the vessel, such as another vessel or a launder. 1. A method for transferring molten metal from a first vessel configured to contain molten metal , wherein the first vessel comprises: (a) interior walls; (b) a cavity defined by the interior walls , the cavity configured for retaining molten metal; (c) an opening in communication with the cavity; (d) an uptake section that is part of the cavity and that is above , and in fluid communication with , the opening , wherein the uptake section is configured to move molten metal upward and therethrough , (e) an outlet above the opening , the outlet in fluid communication with the uptake section , wherein the outlet is configured so that molten metal can exit the uptake section through the outlet; and (f) a molten metal pump having a motor , a drive shaft having a first end connected to the motor and extending into the uptake section , the drive shaft further having a second end connected to a rotor , wherein the rotor comprises one or more rotor blades , and each blade includes: (a) a first portion having (i) a leading edge with a thickness of ⅛″ or greater , (ii) a first upper surface angled to direct molten metal upwards , and (iii) a first bottom surface with an angle equal to or less than the angle of the first upper surface as measured from a vertical axis; and (b) a second portion integrally formed with the first portion , the second portion having (i) a second upper surface angled to direct molten metal upwards , the ...

Подробнее
Номер записи: 54
02-06-2016 дата публикации

METHOD FOR OPERATING AN ELECTRIC ARC FURNACE AND ELECTRIC ARC FURNACE

Номер: US20160153714A1
Автор: Dorndorf Markus, Engels Ralf, Hein Michel, Kruger Klaus, NARDACCHIONE Domenico
Принадлежит:

An electric arc furnace () and to a method for operating an electric arc furnace having at least one electrode () for generating an electric arc (), in which the desired value of the current (I) guided to the electrode () oscillates about a predetermined base value (I). 1. A method for operating an electric arc furnace comprising a furnace vessel for metal to be melted and having at least one electrode for generating an electric arc extending into the vessel;an electric current supply to each of the electrodes, which supply is variable over time by at least one of variations of electric current and variations of frequency; and{'sub': '0', 'the method comprising oscillating of a target value of current fed to the electrode about a pre-determined base value (I).'}2. The method as claimed in claim 1 , wherein the oscillation of the target value of the current takes place at a periodic frequency.3. The method as claimed in claim 2 , wherein the periodic frequency (f) is 0.2 Hz to 2 Hz.4. The method as claimed in claim 1 , further comprising causing the oscillation of the current (I) about the base value (I) by changing the amplitude and/or the periodic frequency (f) of the current (I).5. The method as claimed in claim 4 , further comprising increasing the periodic frequency (f) during a time segment.6. The method as claimed in claim 4 , wherein the electric arc furnace comprises three of the electrodes claim 4 , each of the electrodes having a respective electric current supply for supplying a respective electric current to each of the three electrodes claim 4 , and oscillating the three currents at a phase shift of 120°.7. The method according to claim 6 , wherein due to the oscillation of the target value of the current (I) at one after another at each of the three electrodes claim 6 , generating a longer electric arc specifically at the respective electrode affected by the oscillation claim 6 , and at the unaffected electrodes claim 6 , generating an electric arc ...

Подробнее
Номер записи: 55
07-05-2020 дата публикации

MOLD PUMP ENGAGEMENT APPARATUS

Номер: US20200141411A1
Автор: HORSFALL ANDREW, Tipton Jon
Принадлежит:

A molten metal pump assembly and method to fill a mold with molten metal, such as aluminum. The assembly includes a support frame for suspending the molten metal pump above a furnace. The support frame includes a mechanism for lifting and lowering the molten metal pump into engagement and disengagement with the mold. 1. A molten metal pump assembly to fill an associated mold with molten metal , the assembly comprising:a pump having an elongated shaft connecting a motor to an impeller, the impeller being housed within a chamber of a base member such that rotation of the impeller draws molten metal into the chamber via an inlet and forces molten metal through an outlet of the chamber and into a riser assembly,a frame configured to receive the pump, the frame being mounted to an associated furnace apparatus,said frame suspending the pump such that the base member can be disposed in molten metal residing in said furnace apparatus, andwherein said frame includes a mechanism for selectively raising and lowering said pump into engagement and disengagement with said mold.2. The assembly of wherein said mechanism comprises a lever arm.3. The assembly of wherein said frame includes at least one resilient element disposed between a pump engaging section and a furnace apparatus engaging frame.4. The assembly of wherein said at least one resilient element is further disposed between a riser component of the pump and the furnace engaging frame.5. The assembly of wherein said resilient element comprises a spring.6. The assembly of wherein said lever arm orients said pump in a raised position wherein the pump engages the mold and lowers the pump in response to an excessive hydraulic claim 2 , pneumatic claim 2 , or mechanical force supplied by a furnace lifting apparatus.7. The assembly of wherein said raising and lowering covers a distance of between about 0.5 and 2 inches.8. The assembly of wherein said pump engages said mold with a mating pressure of less than 100 lbs.9. The ...

Подробнее
Номер записи: 56
07-06-2018 дата публикации

FURNACE FOR MELTING AND TREATING METAL AND METALLIC WASTE AND METHOD THEREFOR

Номер: US20180156540A1
Автор: COBOS Luis
Принадлежит:

A furnace includes a tank having outer and inner walls defining a closed canal configured to be filled with molten metal continuously circulating along the closed canal. The closed canal includes at least one heating area having a heating component configured to transfer energy to the molten metal thus overheating it; at least one loading area configured for material to be melted or treated, dragged by the overheated molten metal on its surface; a melting/treatment area configured to receive the overheated molten metal and material dragged on its surface. The overheated molten metal transfers its exceeding energy to the material, causing its melting/treatment. The furnace has a central hollow delimited by the inner wall. The furnace includes a driving component within the hollow, having a rotor with at least one magnet body. The rotor is coupled to a motor and configured to rotate upon activation of the motor, generating a magnetic field capable of causing circulation of the molten metal in a continuous and cyclical manner. 1. A furnace comprising:a tank having an outer wall and an inner wall, arranged to define a closed canal between said inner wall and said outer wall,a central hollow delimited by said inner wall,and at least one driving means located within said central hollow, wherein said at least one driving means comprises a rotor comprising at least two permanent magnets, the rotor being coupled to a motor and configured to rotate upon activation of said motor, thus generating a magnetic field, at least one heating area comprising heating means configured to transfer energy to the molten metal thus overheating said molten metal;', 'at least one loading area configured for loading metal or metallic waste into said molten metal to be melted or treated, said metal or metallic waste, in used of the furnace, being dragged by the overheated molten metal on its surface;', 'a melting/treatment area configured to receive the overheated molten metal and the metal or ...

Подробнее
Номер записи: 57
24-06-2021 дата публикации

ELECTRIC FURNACE AND METHOD FOR MELTING AND REDUCING IRON OXIDE-CONTAINING IRON RAW MATERIAL

Номер: US20210190427A1
Автор: KASAHARA Shuhei, Taguchi Takahiro, YAMAZAKI Tsuyoshi
Принадлежит: NIPPON STEEL CORPORATION

This electric furnace includes one or more upper electrodes, one or more bottom-blowing tuyeres, a mechanical stirrer equipped with an impeller, and a charging device which injects an iron oxide-containing iron raw material. 1. An electric furnace comprising:one or more upper electrodes;one or more bottom-blowing tuyeres;a mechanical stirrer equipped with an impeller; anda charging device which injects an iron oxide-containing iron raw material.2. The electric furnace according to claim 1 , comprising:three or more of the bottom-blowing tuyeres; anda plurality of the upper electrodes,wherein, when a straight line orthogonal to a shortest line segment of individual line segments connecting centers of the upper electrodes and a center of the impeller is drawn at a point closer to the impeller between two points that equally divide the shortest line segment into three parts in a plan view,centers of at least three bottom-blowing tuyeres among the respective bottom-blowing tuyeres are present closer to the respective upper electrodes than the orthogonal straight line.3. The electric furnace according to claim 2 ,wherein, in the plan view, centers of all of the respective upper electrodes and a raw material injection opening of the charging device is present inside a polygonal shape connecting the respective centers of the three or more bottom-blowing tuyeres present closer to the respective upper electrodes than the orthogonal straight line.4. A method for melting and reducing an iron oxide-containing iron raw material in which the electric furnace according to is used claim 1 , the method comprising:when the iron oxide-containing iron raw material having an iron metallization percentage of 45% or more and 95% or less is charged from the charging device and melted and reduced in the electric furnace in which molten metal is present, immersing and rotating the impeller of the mechanical stirrer in the molten metal, thereby stirring slag present on a surface of the molten ...

Подробнее
Номер записи: 58
14-06-2018 дата публикации

CONDUCTIVE METAL MELTING FURNACE, CONDUCTIVE METAL MELTING FURNACE SYSTEM EQUIPPED WITH SAME, AND CONDUCTIVE METAL MELTING METHOD

Номер: US20180164037A1
Автор: Takahashi Kenzo
Принадлежит:

To provide a technique that reliably and quickly melts conductive metal, there is provided a conductive metal melting method including: rotating a magnetic field device formed of a permanent magnet, which includes a permanent magnet, about a vertical axis near a driving flow channel of a flow channel that includes an inlet through which conductive molten metal flows into the flow channel from the outside and an outlet through which the molten metal is discharged to the outside and includes a vortex chamber provided between the driving flow channel provided on an upstream side and an outflow channel provided on a downstream side, and moving lines of magnetic force of the permanent magnet while the lines of magnetic force of the permanent magnet pass through the molten metal present in the driving flow channel; allowing the molten metal to flow into the vortex chamber by an electromagnetic force generated with the movement to generate the vortex of the molten metal in the vortex chamber into which the raw material is to be put; and discharging the molten metal to the outside from the outlet. The conductive metal melting method further includes driving the molten metal present in the outflow channel toward the outlet by an electromagnetic force generated with the movement of the lines of magnetic force as necessary. 1: A conductive metal melting furnace that melts a raw material of conductive metal to form molten metal , the conductive metal melting furnace comprising:a flow channel that includes an inlet through which the conductive molten metal flows into the flow channel from the outside and an outlet through which the molten metal is discharged to the outside; anda magnetic field device formed of a permanent magnet that includes a permanent magnet and is rotatable about a vertical axis,wherein the flow channel includes a driving flow channel that is provided on an upstream side, an outflow channel that is provided on a downstream side, and a vortex chamber that is ...

Подробнее
Номер записи: 59
15-06-2017 дата публикации

MULTI-STAGE IMPELLER FOR MOLTEN METAL

Номер: US20170167793A1
Автор: Cooper Paul V., Fontana Vincent D.
Принадлежит:

Aspects of the invention relate to systems and devices for transferring molten metal. A powered device, such as a molten metal pump, which may be inside of a transfer chamber, includes a multi-stage rotor to move molten metal within a vessel. The molten metal may be moved out of the vessel and into another structure, which could be another vessel or a launder. 1. A rotor with blades for directing molten metal towards the rotor interior and away from the rotor interior , the rotor comprising one or more rotor blades , wherein each rotor blade comprises:(a) a first portion having a first surface angled to direct molten metal towards the rotor interior;(b) a second portion separate from, juxtaposed to, and at least partially closer to the rotor interior than the first portion, and having a second surface angled to direct molten metal towards the rotor interior; and(c) a third portion separate from, and juxtaposed to the second portion, and having a third surface for directing molten metal outward from the rotor interior.2. The rotor of that further includes a connective portion for connecting to a rotor shaft.3. The rotor of wherein the connective portion includes a threaded bore.4. The rotor of wherein the first surface has an angle of between 15° and 45°.5. The rotor of wherein the second surface has an angle of between 45° and 70°.6. The rotor of wherein the first surface has an angle of between 10° and 45°.7. The rotor of wherein the second surface has an angle of between 10° and 60°.8. The rotor of wherein the angle of the first surface is +/−10° of the angle of the second surface.9. The rotor of that has three claim 1 , equally-radially-spaced blades.10. The rotor of that is comprised of graphite.11. The rotor of wherein each blade further includes a top surface and a recess claim 1 , the recess extending downward from the top surface at an angle greater than 90° and less than 180° from a vertical axis.12. The rotor of wherein each blade has a top surface and a ...

Подробнее
Номер записи: 60
11-09-2014 дата публикации

MAGNETIC PUMP INSTALLATION

Номер: US20140252697A1
Автор: RAUCH EDWIN L.
Принадлежит: Novelis Inc.

A magnetic pump in a pump well in a molten metal furnace with a long, relatively thin side wall that wraps around a significant fraction of the circumference of the pump, which facilitates creation of an eddy current based flow field in the molten material with better magnetic coupling, thereby enhancing the effectiveness of the pump. Breach of the well wall will not result in spillage of metal outside the furnace, and the well can be monitored for any such breach or other change so that the pump can be lifted out of the well to protect it from contact with the molten metal in the event of such a breach, or other appropriate action can be taken.

Подробнее
Номер записи: 61
11-09-2014 дата публикации

MAGNETIC PUMP INSTALLATION

Номер: US20140252698A1
Автор: RAUCH EDWIN L.
Принадлежит: Novelis Inc.

A magnetic pump in a pump well in a molten metal furnace with a long, relatively thin side wall that wraps around a significant fraction of the circumference of the pump, which facilitates creation of an eddy current based flow field in the molten material with better magnetic coupling, thereby enhancing the effectiveness of the pump. Breach of the well wall will not result in spillage of metal outside the furnace, and the well can be monitored for any such breach or other change so that the pump can be lifted out of the well to protect it from contact with the molten metal in the event of such a breach, or other appropriate action can be taken.

Подробнее
Номер записи: 62
11-09-2014 дата публикации

SYSTEM AND MTEHOD FOR DEGASSING MOLTEN METAL

Номер: US20140252701A1
Автор: Cooper Paul V.
Принадлежит:

A system for adding gas to and transferring molten metal from a vessel and into one or more of a ladle, ingot mold, launder, feed die cast machine or other structure is disclosed. The system includes at least a vessel for containing molten metal, an overflow (or dividing) wall, a device or structure, such as a molten metal pump, for generating a stream of molten metal, and one or more gas-release devices.

Подробнее
Номер записи: 63
29-09-2022 дата публикации

METAL MELTING APPARATUS, SCREEN PLATE FOR METAL MELTING, AND METHOD OF MELTING METAL

Номер: US20220307768A1
Автор: Iwamoto Tomihiro, Mochizuki Kiyata
Принадлежит: TOUNETSU CO., LTD.

A metal melting apparatus capable of providing a clear melt with little oxides, even when either one or a mixture of scrap material and fresh material is supplied. Solution is provided by a metal melting apparatus including melting chamber to which a melt raw material is supplied, and gas injection system for injecting gas into melt in the melting chamber to generate a vortex of melt in the melting chamber. 1. A metal melting apparatus comprising:a melting chamber to which a melt raw material is supplied, anda gas injection system for injecting gas into melt in the melting chamber to generate a vortex of melt in the melting chamber.2. The metal melting apparatus according to claim 1 ,wherein the gas is an inert gas which is inactive to the melt.3. The metal melting apparatus according to claim 1 ,wherein the gas injection system comprises a plurality of gas injection ports to inject the gas from a plurality of locations in the melting chamber.4. The metal melting apparatus according to claim 1 ,wherein the gas is injected in an upward spiral direction along an interior wall surface of the melting chamber.5. The metal melting apparatus according to claim 1 ,wherein the melting chamber is in a part of a melt circulation channel, andwherein the melt circulated to the melting chamber is supplied to the melting chamber as a fluid for generating a vortex together with the injected gas.6. The metal melting apparatus according to claim 1 , further comprising:a supply line for supplying the melt from the melting chamber to a subsequent step, andimpacting means provided in the supply line or in the melting chamber in the vicinity of the supply line, for making an impact on unmolten melt raw material that is flowing out of the melting chamber to the subsequent step.7. The metal melting apparatus according to claim 6 ,wherein the impacting means is an interior wall of the supply line or an interior wall of the melting chamber in the vicinity of the supply line, configured to ...

Подробнее
Номер записи: 64
21-06-2018 дата публикации

PROCESS FOR PRODUCING METALS AND METAL ALLOYS USING MIXING COLD HEARTH

Номер: US20180169761A1
Автор: EONTA CHRISTOPHER PAUL, LaTOUR ANDREW VAN OS, STEINER SCOTT WESTON
Принадлежит: MOLYWORKS MATERIALS CORP.

A metallurgical system for producing metals and metal alloys includes a fluid cooled mixing cold hearth having a melting cavity configured to hold a raw material for melting into a molten metal, and a mechanical drive configured to mount and move the mixing cold hearth for mixing the raw material. The system also includes a heat source configured to heat the raw material in the melting cavity, and a heat removal system configured to provide adjustable insulation for the molten metal. The mixing cold hearth can be configured as a removal element of an assembly of interchangeable mixing cold hearths, with each mixing cold hearth of the assembly configured for melting a specific category of raw materials. A process includes the steps of providing the mixing cold hearth, feeding the raw material into the melting cavity, heating the raw material, and moving the mixing cold hearth during the heating step. 1. A process for producing metals and metal alloys comprising:providing a mixing cold hearth having a melting cavity configured to hold a raw material for melting into a molten metal, an induction coil configured to generate an electromagnetic field for stirring and heating the raw material in the melting cavity into the molten metal, and a mechanical drive configured to move the mixing cold hearth for mixing the raw material in the melting cavity;feeding the raw material into the melting cavity;heating the raw material in the melting cavity;stirring the raw material during the heating step using the electromagnetic field; andmoving the mixing cold hearth during the heating step using the mechanical drive.2. The process of wherein the moving step includes both oscillatory movement and rotational movement of the mixing cold hearth or a combination thereof.3. The process of further comprising providing a heat removal system having a plurality of fluid cooled tiles configured to provide adjustable insulation for the molten metal; and controlling parameters within the ...

Подробнее
Номер записи: 65
22-06-2017 дата публикации

Method And Arrangement For Improving Heat Transfer For Tundish Plasma Heating

Номер: US20170173687A1
Автор: Abiona Emmanuel, Eriksson Jan-Erik, Yang Hongliang
Принадлежит:

An arrangement for heat transfer to a melt in a tundish in a continuous casting process, wherein the tundish includes at least one outlet and an inlet, the arrangement including a heating chamber, a plasma heating apparatus including a plasma torch positioned inside the heating chamber, wherein the plasma heating apparatus is mounted on an arm and arranged to operate through a hole in the heating chamber with a distance to the melt and an electromagnetic stirrer placed outside of the heating chamber and arranged to electromagnetically stir the melt. The heating chamber further includes a pair of weirs installed at an upper part of the heating chamber and a pair of dams installed at a lower part of the heating chamber and the electromagnetic stirrer is arranged to electromagnetically stir the melt in a region of the heating chamber, wherein the region is enclosed by the weirs and dams. 1. A method for improving a heat transfer of a melt in a tundish in a continuous casting process , comprising:mounting a plasma heating device with a plasma torch positioned inside a heating chamber, wherein the heating chamber is positioned above the tundish with a distance to the melt,installing a pair of weirs at an upper part of the heating chamber,installing a pair of dams at an lower part of the heating chamber,mounting an electromagnetic stirrer on an outer surface of the tundish for electromagnetically stirring the melt,applying plasma heating to the melt inside of the tundish through a heating chamber, andelectromagnetically stirring the melt in a region of the heating chamber, wherein the region is enclosed by the weirs and dams.2. The method according to further comprising controlling a stirring speed of the electromagnetically stirring in a range of 0.2-0.5 m/sec.3. The method according to further comprising controlling a stirring speed of the electromagnetically stirring higher than 0.5 m/sec.4. The method according to further comprising electromagnetically stirring the ...

Подробнее
Номер записи: 66
22-06-2017 дата публикации

ROTARY DEGASSERS AND COMPONENTS THEREFOR

Номер: US20170176106A1
Автор: Cooper Paul V.
Принадлежит:

Disclosed are degassers, couplings, impeller shafts and impellers for use in molten metal. One such coupling transfers gas into an impeller shaft, the coupling having a smooth, tapered internal surface to align with a corresponding surface on the impeller shaft and help prevent gas leakage and to assist in preventing damage to the impeller shaft. Improved impellers for shearing and mixing gas are also disclosed, as is a degasser including one or more of these components. 1. A shaft that cannot be threadingly connected to a corresponding coupling for use in a rotary degasser , the shaft comprising:a first end, a second end, an outer sidewall, and an inner passage for transferring gas, wherein the first end is tapered and not threaded, and one or more grooves that are not threads formed adjacent the tapered first end; wherein the shaft is configured to be received in the corresponding coupling so that the tapered first end mates with an inner tapered portion in the coupling, and one or more retainers are received in the coupling such that each is positioned to be pressed against one of the one or more grooves, in order to apply driving force from the coupling to the shaft; wherein the shaft has a outer portion between the first end and the second end and the one or more grooves is between the center portion and the tapered part of the first end.2. The shaft of that has a plurality of grooves.3. The shaft of wherein the grooves are not vertically aligned.4. The shaft of wherein the at least one groove is vertical.5. The shaft of wherein the at least one groove is circular.6. The shaft of wherein at least two of the plurality of grooves are each configured to align with an opening on the coupling.7. The shaft of wherein the second end of the shaft is threaded.8. The shaft of wherein the second end of the shaft is configured to threadingly connect to a rotor.9. The shaft of wherein the taper is at an angle between 20° and 45°.10. The shaft of wherein the one or more ...

Подробнее
Номер записи: 67
22-06-2017 дата публикации

MOLTEN METAL STIRRING DEVICE AND MOLTEN METAL TRANSFER DEVICE

Номер: US20170176107A1
Автор: Takahashi Kenzo
Принадлежит:

[Problem] There are provided an efficient molten metal stirring device and an efficient molten metal transfer device. 1. A molten metal stirring device comprising:a furnace main body that includes a storage chamber storing molten metal formed of conductive metal; anda rotating-shifting magnetic field unit main body that is rotatable to drive and stir the molten metal stored in the furnace main body,wherein the rotating-shifting magnetic field unit main body includes a permanent magnet, so that input/output magnetic lines of force, which go out of the permanent magnet or enter the permanent magnet, move with the rotation of the rotating-shifting magnetic field unit main body while penetrating the molten metal, in order that a first electromagnetic force for driving the molten metal is generated by eddy currents that are generated by the movement of the input/output magnetic lines of force,the furnace main body includes at least a pair of electrodes that allow current to flow through the molten metal,the pair of electrodes are provided in the storage chamber at positions where the current flowing between the pair of electrodes and the input/output magnetic lines of force intersect each other and generate a second electromagnetic force for driving the molten metal in the same direction as the first electromagnetic force, andthe molten metal stored in the storage chamber is driven and stirred by a resultant driving force of the first and second electromagnetic forces.2. The molten metal stirring device according to claim 1 ,wherein the pair of electrodes are provided at a predetermined interval in a vertical direction parallel to a height direction, andthe rotating-shifting magnetic field unit main body is provided so as to be rotatable about a vertical axis.3. The molten metal stirring device according to claim 1 ,wherein the pair of electrodes are provided at a predetermined interval in a horizontal direction intersecting a height direction, andthe rotating-shifting ...

Подробнее
Номер записи: 68
30-06-2016 дата публикации

MOLTEN IRON REFINING METHOD AND DEVICE THEREOF

Номер: US20160186277A1
Автор: CHUN Jin Kyu, Kang Soo Chang, Park Jung Ho, SEO Yun Yeol
Принадлежит:

Provided are a molten metal refining device and method. The molten metal refining method includes: preparing molten metal; dipping an impeller into the molten metal; supplying a liquid dephosphorization agent on top of the molten metal; and stirring the molten metal by rotating the impeller, wherein a solid dephosphorization agent in a powder state is supplied through the lower portion of the impeller in the stirring of the molten metal, thereby improving the stirring efficiency of the molten metal and efficiently controlling the phosphorus concentration in the molten metal. 1. A device for refining molten metal , comprising:an impeller extending in a vertical direction over a ladle in which the molten metal is charged; anda liquid dephosphorization agent supply part disposed over the ladle to supply a molten state liquid dephosphorization agent to a top portion of the molten metal, an impeller body;', 'blades provided on an upper outer circumferential surface of the impeller body;', 'a supply pipe which is disposed inside the impeller body along a lengthwise direction of the impeller body and through which a solid dephosphorization agent in a powder state and a transfer gas are supplied; and', 'blowing nozzles partially passing through a lower portion of the impeller body and communicating with the supply pipe., 'wherein the impeller comprises2. The device of claim 1 , wherein the blades are positioned above approximately the midpoint of a total depth of the molten metal claim 1 , and the blowing nozzles are positioned under approximately the midpoint of the total depth of the molten metal.3. The device of claim 2 , wherein the blades are disposed in a region of approximately 10% to approximately 30% with respect to a total depth of the molten metal from a molten metal surface of the molten metal.4. The device of claim 1 , wherein the liquid dephosphorization agent supply part is connected to a discharge pipe provided with a heater to heat the liquid ...

Подробнее
Номер записи: 69
20-06-2019 дата публикации

Ultrasonic Probes with Gas Outlets for Degassing of Molten Metals

Номер: US20190185961A1
Автор: Rundquist Victor F.
Принадлежит:

Ultrasonic probes containing a plurality of gas delivery channels are disclosed, as well as ultrasonic probes containing recessed areas near the tip of the probe. Ultrasonic devices containing these probes, and methods for molten metal degassing using these ultrasonic devices, also are disclosed. 125-. (canceled)26. An ultrasonic device comprising:an ultrasonic transducer;an ultrasonic probe attached to the transducer, the probe comprising a tip and two or more gas delivery channels extending through the probe; and a gas inlet,', 'gas flow paths through the gas delivery channels, and', 'gas outlets at or within about 2 cm of the tip of the probe;, 'a gas delivery system, the gas delivery system comprisingwherein the probe comprises a ceramic.27. The ultrasonic device of claim 26 , wherein the gas outlets are at or within about 1 cm of the tip of the probe.28. The ultrasonic device of claim 26 , wherein the gas outlets are at the tip of the probe.29. The ultrasonic device of claim 26 , wherein the probe comprises a Sialon claim 26 , a Silicon carbide claim 26 , a Boron carbide claim 26 , a Boron nitride claim 26 , a Silicon nitride claim 26 , an Aluminum nitride claim 26 , an Aluminum oxide claim 26 , a Zirconia claim 26 , or a combination thereof.30. The ultrasonic device of claim 26 , wherein the probe comprises a Sialon.31. The ultrasonic device of claim 30 , wherein a length to diameter ratio of the probe is in a range from about 5:1 to about 25:1.32. The ultrasonic device of claim 30 , wherein the probe comprises from two to eight gas delivery channels.33. The ultrasonic device of claim 30 , wherein a ratio of the cross-sectional area of the tip of the probe to the cross-sectional area of the gas delivery channels is in a range from about 30:1 to about 1000:1.34. The ultrasonic device of claim 26 , further comprising a booster between the transducer and the probe.35. A method for reducing an amount of a dissolved gas and/or an impurity in a molten metal bath ...

Подробнее
Номер записи: 70
25-09-2014 дата публикации

METAL MELTING FURNACE VORTEX CHAMBER BODY AND METAL MELTING FURNACE USING THE SAME

Номер: US20140284854A1
Автор: Takahashi Kenzo
Принадлежит:

A metal melting furnace includes: a furnace body including a storage space storing molten metal; a vortex chamber body including a vortex chamber communicating with the storage space, the vortex chamber body including a partition plate serving as a drop weir uprightly formed inside the vortex chamber, the partition plate disposed at a communication side with respect to the storage space in the vortex chamber so that the longitudinal direction of the partition plate follows the communication direction and divides the communication side to form first and second vortex chamber openings positioned at both sides of the partition plate and communicating with both the storage space and the vortex chamber; and a molten metal whirling gap formed between a front end portion of the partition plate positioned inside of the vortex chamber in the longitudinal direction and an inner wall of the vortex chamber body facing the front end portion. 1. A metal melting furnace vortex chamber body with a vortex chamber communicating with a storage space of a furnace body having the storage space storing molten metal , the metal melting furnace vortex chamber body comprising:a partition plate which is provided as a drop weir uprightly formed inside the vortex chamber of the vortex chamber body,wherein the partition plate is disposed at a communication side with respect to the storage space in the vortex chamber so that the longitudinal direction of the partition plate follows the communication direction and divides the communication side so as to form first and second vortex chamber openings positioned at both sides of the partition plate and communicating with both the storage space and the vortex chamber, andwherein a molten metal whirling gap is formed between a front end portion of the partition plate positioned at the inside of the vortex chamber in the longitudinal direction and an inner wall of the vortex chamber body facing the front end portion.2. The metal melting furnace vortex ...

Подробнее
Номер записи: 71
12-07-2018 дата публикации

Rotor and rotor shaft for molten metal

Номер: US20180195513A1
Автор: Paul V. Cooper
Принадлежит: Molten Metal Equipment Innovations LLC

A molten metal rotor receives and retains an end of a molten metal rotor shaft. The rotor shaft has one or more projections at the end received in the rotor. The rotor has an inner cavity, a top surface with an opening leading to the inner cavity, and at least one abutment. The opening includes one or more portions for allowing each projection to pass through the opening and into the inner cavity. The rotor and/or shaft are then rotated so at least one of the outwardly-extending projections is under the top surface of the rotor and is against an abutment. A molten metal pump, rotary degasser scrap melter or other device used in molten metal may utilize a rotor/shaft combination as disclosed herein.

Подробнее
Номер записи: 72
13-07-2017 дата публикации

Pusher Pump Resistant to Corrosion by Molten Aluminum and Having an Improved Flow Profile

Номер: US20170198685A1
Автор: Costino James, Komarovskiy Igor, Lee Yong
Принадлежит:

A bubble pump having a steel tube pump body having an interior formed from a ceramic material that resists attack by molten metal. The pump further has a nitrogen supply line attached to a lower portion of the pump body. The pump body and nitrogen supply line are covered with a ceramic cloth material that resists attack by molten metal. The pump also includes a discharge head attached to the top of the pump body. The discharge head is formed of a cast ceramic material that resists attack by molten metal and includes a distribution chamber therein which has an ellipsoidal dome shape with a generally flat bottom and an ellipsoidal top. The discharge head also includes two discharge nozzles which have a square cross section. These features provide the inventive pump with extended service life and reduced discharge turbulence of the molten metal. 1. A bubble pump having:a pump body comprising a vertical steel tube configured to allow for the transport of molten metal there through;said pump body having an interior formed from a material that resists attack by molten metal;a nitrogen supply line attached to a lower portion of said pump body;said nitrogen supply line and said pump body communicating so as to allow the flow of nitrogen from said nitrogen supply line into the interior of said pump body; anda discharge head attached to the top of said pump body;said discharge head communicating with said pump body so as to allow for transport of molten metal and nitrogen from said pump body, into and then out of said discharge head.2. The bubble pump of claim 1 , wherein said material that resists attack by molten metal is selected from the group consisting of alumina claim 1 , magnesia claim 1 , silicate claim 1 , silicon carbide claim 1 , graphite claim 1 , and the mixtures of these ceramic materials.3. The bubble pump of claim 1 , wherein said pump body is wrapped in one or more layers of ceramic cloth to provide the exterior of said pump body with flexible resistance to ...

Подробнее
Номер записи: 73
02-10-2014 дата публикации

APPARATUS FOR INDUCING FLOW IN A MOLTEN MATERIAL

Номер: US20140291899A1
Автор: Guest Graham
Принадлежит: SOLIOS THERMAL LIMITED

The apparatus includes a furnace having a furnace chamber (), a port () in fluid communication with the furnace chamber having an inclined lower wall (), and a bi-directional induction unit () mounted to the inclined lower wall for inducing flow in molten material in the port. A retractable channel plate assembly () is selectively positionable in the port to define an extraction flow channel () for the molten material between the channel plate assembly and the inclined lower wall. A drive arrangement () moves the channel plate assembly into and out of the port and the control of a control system () which includes a sensor system () for measuring the level of the molten material in the port and a feedback system for providing information regarding the position of the channel plate assembly. A method of operating the apparatus is also disclosed. 1. Apparatus for inducing flow in a molten material , the apparatus comprising a furnace having a furnace chamber , a port in fluid communication with the furnace chamber and having an inclined lower wall , a bi-directional induction unit mounted to the inclined lower wall of the port for inducing flow in molten material in the port , a retractable channel plate assembly selectively positionable in the port to define an extraction flow channel for the molten material between the channel plate assembly and the inclined lower wall , a drive arrangement for moving the channel plate assembly into and out of the port , a control system for controlling the drive system , the control system including a sensor system for measuring the level of the molten material in the port and a feedback system for providing information regarding the position of the channel plate assembly.2. Apparatus as claimed in claim 1 , in which the apparatus can be operated in an extraction mode to extract molten material from the furnace chamber through the port claim 1 , the control system being configured when operated in the extraction mode to advance the ...

Подробнее
Номер записи: 74
16-10-2014 дата публикации

Method And A Control System For Controlling A Melting And Refining Process

Номер: US20140305261A1
Автор: Carl-Fredrik Lindberg, Jan-Erik Eriksson, Lidong Teng, Michael Lundh, Xiaojing Zhang
Принадлежит: Individual

A method and device for controlling a melting and refining process in an electric arc furnace for melting a metal, wherein the electric arc furnace includes molten and solid metal and a slag layer on the surface of the molten metal, wherein an electromagnetic stirrer is arranged for stirring the molten metal. The method includes calculating/determining masses of the molten and solid metal at a point of time, wherein the calculation is based on initial values of the molten and solid metal, an arc power supplied to the electric arc furnace, and temperatures of the molten and solid metal, determining a stirring power based on the calculated/determined masses, and supplying the determined stirring power to the electromagnetic stirrer.

Подробнее
Номер записи: 75
13-08-2015 дата публикации

Transferring molten metal using non-gravity assist launder

Номер: US20150224574A1
Автор: Paul V. Cooper
Принадлежит: Individual

A system and method for transferring molten metal from a vessel and into a launder is disclosed. The system includes at least a vessel for containing molten metal, an overflow (or dividing) wall, and a device or structure, such as a molten metal pump, for generating a stream of molten metal. The dividing wall divides the vessel into a first chamber and a second chamber, wherein part of the second chamber has a height H 2. The device for generating a stream of molten metal, which is preferably a molten metal pump, is preferably positioned in the first chamber. When the device operates, it generates a stream of molten metal from the first chamber and into the second chamber. When the level of molten metal in the second chamber exceeds H 2, molten metal flows out of the vessel and into the launder. The launder has a horizontal angle of between 0° and −10° to help prevent dross from being pulled by gravity into downstream vessels.

Подробнее
Номер записи: 76
02-08-2018 дата публикации

METALLURGICAL APPARATUS

Номер: US20180216890A1
Автор: Bosworth Paul, MIDGLEY Jason Dennis
Принадлежит:

A circulating apparatus for circulating the body of molten metal within an associated furnace is provided. The circulating apparatus includes a molded body with an inlet and an outlet. The inlet and the outlet are aligned with corresponding openings on the associated furnace. The inlet and the outlet define a flow chamber within the molded body. An inductor is secured to a portion of the molded body. The inductor is configured to pump molten metal from the associated furnace and into the flow chamber. A flow channel is spaced from the inlet and the outlet on the molded body. A dam assembly is positioned adjacent the outlet. The dam assembly is movable between a raised position and a lowered position relative to the outlet. The molten fluid flows back into the associated furnace when the dam assembly is in the raised position and the molten fluid flows to the flow channel when the dam assembly is in the lowered position. 1. An apparatus for optional circulating molten metal within an associated furnace or transferring molten metal from the associated furnace , the apparatus comprising:a body including an inlet and an outlet, the inlet and the outlet being aligned with corresponding openings on the associated furnace, the inlet and the outlet defining a flow channel within the body;an inductor secured to a portion of the body, the inductor being configured to draw molten metal from the associated furnace and into the flow channel;a wall notch spaced from the inlet and the outlet on the molded body; anda dam assembly positioned adjacent at least one of the inlet and the outlet, the dam assembly being movable between a raised position and a lowered position;wherein the molten metal flows back into the associated furnace when the dam assembly is in the raised position and the molten metal rises within the flow channel and is capable of reaching the wall notch when the dam assembly is in the lowered position.2. The apparatus of wherein the inductor is formed in a floor of ...

Подробнее
Номер записи: 77
10-08-2017 дата публикации

THERMOPLASTIC KETTLE AUXILIARY HEAT EXCHANGER SYSTEM

Номер: US20170227289A1
Автор: Shea James P.
Принадлежит:

An auxiliary heat exchanger that is used in conjunction with thermoplastic melter kettles. The auxiliary heat exchanger receives molten thermoplastic material from the bottom of a melter kettle, transports the molten thermoplastic material though the auxiliary heat exchanger and feeds the molten thermoplastic material into the top of the melter kettle thereby mixing hotter molten thermoplastic material from the bottom of the melter kettle into cooler thermoplastic material near the top of the melter kettle. The auxiliary heat exchanger includes an oil bath chamber and parallel heat transfer tubes that are arranged in a serpentine configuration and include motor drive augers to transport molten thermoplastic material through the auxiliary heat exchanger. 1. In a melter kettle for melting thermoplastic pavement marking material wherein the melter kettle is provided with a combustion chamber the improvement comprising an auxiliary heater coupled to the melter kettle , the auxiliary heater comprising an oil bath chamber through which heated oil is circulated and a configuration of heat transfer tubes within the oil bath chamber through which molten thermoplastic material can flow , the configuration of heat transfer tubes is coupled at one end to a lower portion of the melter kettle and coupled at another end to the top of the melter kettle for receiving molten thermoplastic from the lower portion of the melter kettle and discharging molten thermoplastic material to the top of the melter kettle.2. The melter kettle of further comprising a heat dome chamber in the bottom of melter kettle.3. The melter kettle of claim 2 , further comprising an exhaust gas conduit that is provided between the top of the heat dome chamber and the top of the melter kettle through which exhaust gas conduit combustion gases received in the heat dome chamber can be exhausted from the top of the melter kettle.4. The melter kettle of claim 1 , wherein the configuration of heat transfer tubes ...

Подробнее
Номер записи: 78
10-08-2017 дата публикации

System And Method For Determining Temperature Of A Metal Melt In An Electric Arc Furnace

Номер: US20170227290A1
Автор: Eriksson Jan Erik, Lundh Michael, Svahn Conny, Zhang Xiaojing
Принадлежит:

A system and a method for determining/predicting a tapping time for a metal melt in an electric arc furnace (EAF), at least one electrode is provided for melting the metal melt until it reach a target tapping temperature, the EAF further includes a slag and smoke layer on the surface of the metal melt, wherein an electromagnetic stirrer is provided for stirring the metal melt. 1. A method for determining/predicting a tapping time for a metal melt in an electric arc furnace (EAF) , wherein at least one electrode is provided for melting the metal melt until it reach a target tapping temperature , wherein the EAF further comprises a slag and smoke layer on the surface of the metal melt , wherein an electromagnetic stirrer is provided for stirring the metal melt , the method comprisinga) supplying a power to the electrode in order to melt a scrap to a metal melt,b) electromagnetic stirring the metal melt in the EAF,c) arranging a lance unit dedicatedly configured to including an inert gas,d) blowing away the slag and smoke from the surface of the metal melt by the dedicatedly arranged lance unit,e) non-contactingly measuring a temperature of the metal melt,f) receiving the measured temperature,g) calculating a temperature profile based on the received temperature,h) estimating/predicting a tapping temperature at a time point based on the calculated temperature profile, andi) determining a tapping time based on the estimated temperature, the target tapping temperature and the power supplied to the electrode.2. The method according to claim 1 , comprisingj) re-calculating/adjusting the temperature profile upon receiving a new measured temperature,k) estimating/predicting a tapping temperature at a time point based on the re-calculated/adjusted temperature profile, andl) determining a tapping time based on the estimated temperature, the target tapping temperature and the power supplied to the electrode.3. A system for determining/predicting a tapping time of a metal melt ...

Подробнее
Номер записи: 79
10-08-2017 дата публикации

HEAT DOME TEMPERATURE REGULATION SYSTEM

Номер: US20170227291A1
Автор: Shea James P.
Принадлежит:

A thermoplastic melter kettle having a heat dome chamber from which combustion gases are exhausted through a conduit that connects between a top of the heat dome chamber and the top of the melter kettle. An adjustable venting arrangement coupled to the conduit allows for adjustment of the flow of exhaust gases through the conduit. 1. In a melter kettle for melting thermoplastic pavement marking material wherein the melter kettle is provided with a combustion chamber and a heat dome chamber in the bottom of melter kettle the improvement wherein an exhaust gas conduit is provided between the top of the heat dome chamber and the top of the melter kettle through which exhaust gas conduit combustion gases received in the heat dome chamber can be exhausted from the top of the melter kettle.2. The melter kettle of claim 1 , wherein the exhaust gas conduit is provided with cooperating vents that can be adjusted to regulate the flow of exhaust gases therethrough.3. The melter kettle of claim 1 , wherein the cooperating vents are provided in adjacent coaxial rotating structures.4. The melter kettle of claim 1 , wherein the melter kettle further include rotating agitators that rotate about the exhaust gas conduit.5. The melter kettle of claim 1 , wherein the exhaust gas conduit comprises a dome chimney stack tube that is located within a tube drive shaft that rotates about the dome chimney stack tube.6. The melter kettle of claim 5 , further including rotating agitators that are attached to the tube drive shaft to rotate with the tube drive shaft.7. The melter kettle of claim 5 , further including a motor positioned above the top of the melter kettle which drives rotation of the tube drive shaft.8. The melter kettle of claim 6 , further including a motor positioned above the top of the melter kettle which drives rotation of the tube drive shaft.9. The melter kettle of claim 1 , further comprising a kettle side heat chamber through which combustion gases in the combustion ...

Подробнее
Номер записи: 80
18-08-2016 дата публикации

HOT MELT ADHESIVE SUPPLY AND METHODS ASSOCIATED THEREWITH

Номер: US20160236230A1
Автор: Chastine Christopher R., Clark Justin A., Estelle Peter W., Evans Howard B., Ganzer Charles P., Guerrero Manuel A., Ramosevac Enes, Riney John M., SHIN SANG HYUB, Varga Leslie J.
Принадлежит:

A melter for heating and melting particulate hot melt adhesive into a liquefied form is disclosed. The melter includes a heated receiving device having an interior with an inlet configured to receive the particulate hot melt adhesive and an outlet. A flexible hopper holds a supply of the particulate hot melt adhesive and a particulate hot melt adhesive feed device allows the particulate hot melt adhesive to be directed from the flexible hopper to the inlet of the heated receiving device. 1. A melter for heating and melting particulate hot melt adhesive into a liquefied form , the melter comprising:a heated receiving device having an interior with an inlet configured to receive the particulate hot melt adhesive and an outlet, the heated receiving device operative to heat and melt the particulate hot melt adhesive, and direct the hot melt adhesive as a liquefied form to the outlet;a flexible hopper configured to hold a supply of the particulate hot melt adhesive; anda particulate hot melt adhesive feed device allowing the particulate hot melt adhesive to be directed from the flexible hopper to the inlet of the heated receiving device.2. The melter of claim 1 , wherein the flexible hopper further comprises a bag.3. The melter of claim 2 , wherein the bag further comprises a fabric.4. The melter of claim 1 , wherein the flexible hopper further comprises at least a first section that can be articulated relative to another section to move particulate adjacent to a wall of the flexible hopper toward a central interior location of the flexible hopper.5. The melter of claim 1 , further comprising an articulation device comprising a driven element operative to move the particulate hot melt adhesive held in the flexible hopper.6. The melter of claim 5 , wherein the flexible hopper comprises movable wall portions and the articulation device moves the wall portions to move the particulate hot melt adhesive held in the flexible hopper.7. The melter of claim 6 , wherein at least a ...

Подробнее
Номер записи: 81
18-08-2016 дата публикации

HOT MELT ADHESIVE SUPPLY AND METHODS ASSOCIATED THEREWITH

Номер: US20160236231A1
Автор: Chastine Christopher R., Clark Justin A., Estelle Peter W., Evans Howard B., Ganzer Charles P., Guerrero Manuel A., Ramosevac Enes, Riney John M., SHIN SANG HYUB, Varga Leslie J.
Принадлежит:

A flexible bag system can dispense particulate hot melt adhesive. The flexible bag system includes an articulation device in contact with the flexible bag body and manipulates the flexible bag body to maintain fluidity of the particulate hot melt adhesive out of the outlet. A system for supplying particulate hot melt adhesive is also disclosed. The system includes an outer housing, a flexible inner housing disposed inside the outer housing that receives the particulate hot melt adhesive, a transfer opening disposed inside the flexible inner housing and through which the particulate hot melt adhesive is transferred, and an agitator in contact with the flexible inner housing, where the agitator applies a lateral force to a surface of the flexible inner housing. 1. A flexible bag system configured to dispense particulate hot melt adhesive , the flexible bag system comprising:a flexible bag body having an outer surface and an inner surface, the flexible bag body being configured to hold the particulate hot melt adhesive;an outlet in fluid communication with the interior of the flexible bag body, the outlet being configured to output particulate hot melt adhesive to a melter; andan articulation device in contact with the flexible bag body, and configured to manipulate the flexible bag body to maintain fluidity of the particulate hot melt adhesive out of the outlet.2. The flexible bag system of claim 1 , wherein the articulation device is within the flexible bag body and contacts the inner surface of the flexible bag body.3. The flexible bag system of claim 2 , wherein the articulation device comprises one or more end pieces connected to a drive mechanism by one or more corresponding arms claim 2 , the one or more end pieces being coupled to the inner surface of the flexible bag body.4. The flexible bag system of claim 3 , wherein the drive mechanism is an eccentric drive mechanism that rotates the one or more arms to manipulate the flexible bag body.5. The flexible bag ...

Подробнее
Номер записи: 82
16-08-2018 дата публикации

POSITIVE DISPLACEMENT TRANSFER GEAR PUMP FOR MOLTEN METAL

Номер: US20180230995A1
Автор: Thut Bruno H.
Принадлежит:

A self-cleaning transfer gear pump for transferring molten metal includes the following features: a transfer conduit extends upward from an outlet of a base, two rotatable gears are formed of refractory material and disposed in the gear chamber and engage each other during rotation. A boss functioning as a bearing extends from the drive gear and is adapted to be received in an opening in the base. A shaft is fastened at a lower end to the drive gear. A filter is fastened to the base so as to cover the inlet and prevents particles and objects in the molten metal from entering the gear chamber. In operational mode, a motor rotates the shaft and the drive gear whereby the drive gear and the second gear engage each other while being rotated so as to positively displace molten metal from the inlet to the outlet and along the transfer conduit to the remote location. In self-cleaning mode, the motor rotates the shaft and the drive gear effectively to draw molten metal from the transfer conduit by positive displacement, through the outlet, and toward the inlet therefore cleaning the filter by removing the particles adhering to the filter. Also included are a system with optional filter and optional self-cleaning mode but including an inlet portion of a die casting machine, and a method for operating the gear pump. A flow sensor may be used to transmit pulses into and from the transfer conduit so as to enable determination of a volume of molten metal being charged. The control of the molten metal volume being charged is not solely controlled by the flow sensor. 1. A self-cleaning transfer gear pump for transferring molten metal comprising:a base including an interior gear chamber, an inlet, an outlet and a shaft opening, said base being formed of refractory material and being adapted to be submerged in molten metal;a transfer conduit extending upward from the outlet of said base to above the surface of the molten metal and to a remote location;two rotatable gears formed of ...

Подробнее
Номер записи: 83
24-08-2017 дата публикации

ADVANCED MATERIAL FOR MOLTEN METAL PROCESSING EQUIPMENT

Номер: US20170241713A1
Автор: Henderson Richard S., Lutes Lennard, Tetkoskie Jason, Tipton Jon
Принадлежит: PROTEK, INC.

A molten metal processing apparatus selected from a pump, a degasser, a flux injector, and a scrap submergence device constructed to include at least one element comprised of C/C composite. 1. A molten metal processing apparatus selected from a pump , a degasser , a flux injector and a scrap submergence device including at least one element comprised of C/C composite.2. The apparatus of claim 1 , wherein said element is further comprised of at least one of ceramic and graphite in combination with said C/C composite.3. The apparatus of claim 2 , wherein said element comprises an impeller.4. The apparatus of claim 3 , wherein at least one of a top plate claim 3 , a bearing ring claim 3 , and a vane of the impeller is comprised of said C/C composite.5. The apparatus of claim 4 , wherein said impeller comprises a graphite hub and at least one C/C composite vane.6. The apparatus of claim 1 , wherein said C/C composite is comprised of carbon fibers disposed in a carbon matrix.7. The apparatus of claim 6 , wherein said carbon matrix is derived from a phenolic resin or pitch.8. The apparatus of wherein said carbon fibers are in the form of a yarn or a cloth.9. The apparatus of wherein said C/C composite includes an oxidation resistant impregnate.10. A molten metal pump claim 1 , degasser claim 1 , flux injector claim 1 , and/or scrap submergence device comprising a motor claim 1 , a shaft engaging the motor at a first end and an impeller at a second end claim 1 , wherein at least one component intended to be disposed below a molten metal surface is comprised of C/C composite.11. The apparatus of claim 10 , wherein at least a portion of said shaft is comprised of C/C composite.12. The apparatus of claim 10 , wherein at least a portion of said impeller is comprised of C/C composite.13. The apparatus of claim 10 , wherein said component comprises a bearing ring.14. The apparatus of claim 10 , wherein said component comprises a pump housing.15. The apparatus of claim 10 , ...

Подробнее
Номер записи: 84
01-09-2016 дата публикации

IMPROVEMENTS IN AND RELATING TO APPARATUS FOR STIRRING AND METHODS OF STIRRING

Номер: US20160252306A1
Автор: MAKEPEACE Stephen, Peel Alan
Принадлежит:

A method of stirring and apparatus for stirring using electromagnetic stirrer units is provided. The method and apparatus are particularly useful in relation to molten metal stirring. Each stirrer unit is mounted on a moveable carriage so that it can be moved between a first location, a second location and potentially further locations. The same stirrer unit is used to provide stirring at each location, so allowing multiple locations to be stirred but only requiring a single stirrer unit to do so. The method and apparatus also provide convenient connection of air cooling to the stirrer unit. 1. A method of stirring , the method including:a) providing a number of electromagnetic stirrer units, each stirrer unit being moveably mounted;b) providing a number of locations at which stirring is to be provided by a stirrer unit;c) providing stirring at a first location from amongst the number of locations using a stirrer unit;d) providing stirring at a second location from amongst the number of locations using the same stirrer unit, the second location being different to the first location.2. An apparatus for stirring , the apparatus including:a) a number of electromagnetic stirrer units;b) a moveable mounting for each stirrer unit; andb) a number of locations at which stirring is to be provided by a stirrer unit; wherein, the apparatus has a first state in which a stirring unit is at a first location selected from amongst the number of locations; andthe apparatus has a second state in which the same stirring unit is at a second location selected from amongst the number of locations, the second location being different to the first location.3. The apparatus according to in which the stirrer unit is in fluid communication with a source of coolant claim 2 , the coolant being air claim 2 , when at the first location.4. The apparatus according to in which the stirring is stirring of molten metal and/or is stirring a furnace and/or a ladle and/or a storage vessel and/or a ...

Подробнее
Номер записи: 85
30-08-2018 дата публикации

ELECTRIC IMMERSION ALUMINUM HOLDING FURNACE WITH CIRCULATION MEANS AND RELATED METHOD

Номер: US20180245852A1
Автор: KENNEDY Gordon
Принадлежит:

A process to hold molten aluminum alloy in a refractory lined vessel using heating elements disposed within ceramic immersion heating tubes to provide accurate temperature metal for the casting industry. The vessel is lined with multi thicknesses of high insulating refractory materials to minimize heat loss with contoured corners to allow smooth flow of circulating metal provided by a gear drive with rotary shaft and impeller. The heating elements are housed in a ceramic protection tube to prevent aluminum leakage which would result in element failure. The receiving and outlet wells are separated by refractory arches. An insulated inert gas purged cover is used over the heat chamber to reduce heat loss and allow for an inert purge gas to minimize surface oxidation. A thermocouple for temperature control is positioned in the exit chamber. A ceramic drain plug is provided to remove metal for maintenance. 1. A system comprising:an electric immersion holding furnace having refractory walls engaging an insulated floor, wherein the refractory walls engaging the insulated floor define a holding chamber;a heating element disposed within an immersion tube, wherein the immersion tube extends into the holding chamber; andmeans for circulating molten metal within the electric immersion holding furnace in a substantially horizontal direction.2. The system of claim 1 , wherein the immersion tube further comprises silicon nitride.3. The system of claim 1 , wherein the immersion tube further comprises silicon carbide.4. The system of claim 1 , wherein the immersion tube further comprises silicon nitride and a compound configured to withstand the heat of the electric immersion holding furnace.5. An electric immersion holding furnace comprising:refractory walls operatively connected to an insulated floor, wherein the refractory walls and insulated floor define a holding chamber;an immersion tube, extending through a refractory wall and disposed within the holding chamber;a motor ...

Подробнее
Номер записи: 86
24-09-2015 дата публикации

IMPELLER AND METHOD OF MELT-POOL PROCESSING METHOD USING THE SAME

Номер: US20150267270A1
Автор: Han Woong Hee, Kang Soo Chang, KIM Wook, Park Jung Ho, Song Min Ho
Принадлежит:

An impellor for stirring a melt pool includes: an impellor body extending in the length direction; a blowing nozzle which is provided in such a way as to pass through one part at the bottom end of the impellor body; and a blade provided on the upper part of the impellor body. As a result, when the impellor is used, a stirring flow produced due to the blade and a stirring flow due to substances blown into the melt-pool via the blowing nozzle correspond to each other, and the two flows are combined such that the overall stirring force is improved. Consequently, it is possible to improve the efficiency of stirring by the impeller as compared with hitherto, and, as a result, refining efficiency in the refining step is improved as the rate of reaction between the melt-pool and additives is increased. 1. An impeller for stirring melt-pool , comprising:an impeller body extending in a longitudinal direction;a blowing nozzle configured to pass through a portion of a lower portion of the impeller body; anda blade installed at an upper portion of the impeller body.2. The impeller of claim 1 , wherein the impeller body is submerged in a container containing the melt-pool claim 1 , andthe impeller body is submerged at least from a bath surface of the melt-pool to a lower region of the melt-pool.3. The impeller of claim 2 , further comprising a supply tube which is configured to longitudinally pass through an inside of the impeller body and has a lower end communicating with the blowing nozzle.4. The impeller of claim 2 ,wherein when it is assumed that the melt-pool contained in the container has a height of H,the blade is positioned at a region above a (½)H position from a bottom surface of the container, andthe blowing nozzle is positioned at a region under the (½)H position from the bottom surface of the container.5. The impeller of claim 4 ,wherein the blade is installed adjacent to the bath surface of the melt-pool and the blowing nozzle is provided adjacent to the bottom ...

Подробнее
Номер записи: 87
21-09-2017 дата публикации

A DEVICE AND METHOD FOR HIGH SHEAR LIQUID METAL TREATMENT

Номер: US20170266717A1
Автор: CASSINATH Zen
Принадлежит:

A high shear liquid metal treatment device for treating metal includes a barrel, a rotor shaft, rotor fans, and stator plates. The barrel has a longitudinal axis that extends between an upper end and a lower end, and an opening at its upper and lower ends. The rotor shaft is mounted centrally through, and parallel to the longitudinal axis. The rotor fans are mounted along an axial length of the shaft. The stator plates are formed on an inner surface of the barrel and are located between adjacent rotor fans. Each stator plate has at least one passage formed therethrough to allow fluid to pass through the plate; and upper and lower surfaces of each stator plate are formed to be within the minimum distance of an adjacent rotor fan. The minimum distance is between 10 μm and 10 mm. The device allows improved treatment of liquid and semi-liquid metals during processing.

Подробнее
Номер записи: 88
13-08-2020 дата публикации

MOLTEN METAL ROTOR WITH HARDENED TOP

Номер: US20200256350A1
Автор: Cooper Paul V.
Принадлежит: Molten Metal Equipment Innovations, LLC

Embodiments of the invention are directed to a rotor for a molten metal pump and a molten metal pump including the rotor. The rotor has a main body and a top comprised of a material that is at least twice as hard as the main body. The top, among other things, may form a first portion of each rotor blade wherein the first portion directs molten metal into a pump chamber or other structure in which the rotor is mounted. 1. A rotor for use in molten metal , the rotor comprising a graphite body , a top surface , and a plurality of vanes each having a leading face and a trailing face , and hardened portions comprising hardened material at least twice as hard as the graphite body , the hardened portions comprising: the top surface , less than all of the leading face , and less than all of the trailing face.2. The rotor of claim 1 , wherein the hardened portions are comprised of material that is 2-3 times as hard as the graphite body.3. The rotor of claim 1 , wherein the hardened portions are comprised of material that is 2-4 times as hard as the graphite body.4. The rotor of claim 1 , wherein the hardened portions are comprised of material that is 2-5 times as hard as the graphite body.5. The rotor of claim 1 , wherein the hardened portions are cemented to the graphite body.6. The rotor of claim 1 , wherein the hardened portions are comprised of silicon carbide.7. The rotor of that comprises a plurality of blades claim 1 , wherein each blade has a first section and a second section claim 1 , and the first section pushes molten metal towards the second section claim 1 , and the second section pushes molten metal outward claim 1 , wherein the entire first section is comprised of hardened material.8. The rotor of claim 7 , wherein part of the second section is comprised of hardened material.9. The rotor of claim 7 , wherein the at least part of the second portion formed by the hardened material is immediately beneath the first portion.10. The rotor of that further includes a ...

Подробнее
Номер записи: 89
08-10-2015 дата публикации

METAL MELT CIRCULATING DRIVE DEVICE AND MAIN BATH INCLUDING THE SAME

Номер: US20150283605A1
Автор: Takahashi Kenzo
Принадлежит:

A melt circulating drive device mounted on a side wall of a main bath and driven to agitate nonferrous metal melt present in a melt storage room storing nonferrous metal melt of the main bath. The melt circulating drive device includes a melt drive tank, a melt drive unit, and a partition plate. The melt drive tank includes a hermetically-sealed drive chamber including an opening allowing the drive chamber to communicate with the melt storage room, and the melt drive tank stores melt, which flows from the opening, in the drive chamber. The melt drive unit includes a permanent magnet unit rotated about a first up and down axis while making magnetic lines of force up and down pass through the melt, and a drive unit for the permanent magnet unit that rotates the melt, about the first up and down axis by rotationally driving the permanent magnet unit. 1. A melt circulating drive device that is mounted on a side wall of a main bath and is driven to agitate nonferrous metal melt present in a melt storage room storing nonferrous metal melt of the main bath , the melt circulating drive device comprising:a melt drive tank that includes a hermetically-sealed drive chamber, the drive chamber including an opening allowing the drive chamber to communicate with the melt storage room, and the melt drive tank storing melt, which flows from the opening, in the drive chamber;a melt drive unit that is installed above the melt drive tank, and includes a permanent magnet unit that is rotated about a first up and down axis while making magnetic lines of force pass through along the up and down direction the melt present in the drive chamber of the melt drive tank, and a drive unit for the permanent magnet unit that rotates the melt, which is present in the drive chamber, about the first up and down axis by rotationally driving the permanent magnet unit; anda partition plate that is disposed upright in the drive chamber of the melt drive tank along a direction where the drive chamber and ...

Подробнее
Номер записи: 90
08-10-2015 дата публикации

Transferring molten metal from one structure to another

Номер: US20150285557A1
Автор: Paul V. Cooper
Принадлежит: Individual

A system for transferring molten metal from a vessel and into one or more of a ladle, ingot mold, launder, feed die cast machine or other structure is disclosed. The system includes at least a vessel for containing molten metal, an overflow (or dividing) wall, and a device or structure, such as a molten metal pump, for generating a stream of molten metal. The dividing wall divides the vessel into a first chamber and a second chamber, wherein part of the second chamber has a height H 2 . The device for generating a stream of molten metal, which is preferably a molten metal pump, is preferably positioned in the first chamber. When the device operates, it generates a stream of molten metal from the first chamber and into the second chamber. When the level of molten metal in the second chamber exceeds H 2 , molten metal flows out of the vessel and into another structure, such as into one or more ladles and/or one or more launders.

Подробнее
Номер записи: 91
28-09-2017 дата публикации

TRANSFERRING MOLTEN METAL FROM ONE STRUCTURE TO ANOTHER

Номер: US20170276430A1
Автор: Cooper Paul V.
Принадлежит:

A system and method for transferring molten metal from a vessel and into one or more of a ladle, ingot mold, launder, feed die cast machine or other structure is disclosed. The system includes at least a vessel for containing molten metal, an overflow (or dividing) wall, and a device or structure, such as a molten metal pump, for generating a stream of molten metal. The dividing wall divides the vessel into a first chamber and a second chamber, wherein part of the second chamber has a height H The device for generating a stream of molten metal, which is preferably a molten metal pump, is preferably positioned in the first chamber. When the device operates, it generates a stream of molten metal from the first chamber and into the second chamber. When the level of molten metal in the second chamber exceeds H molten metal flows out of the vessel and into another structure, such as into one or more ladles and/or one or more launders. 1. A system for transferring molten metal from a vessel , the vessel comprising at least a first chamber and a second chamber , the first chamber and second chamber being separated by a dividing wall including an opening , the system further comprising:a pump configured to fit into the first chamber and to pump molten metal from the first chamber through the opening in the dividing wall and into the second chamber to raise the level of molten metal in the second chamber to a level at which molten metal flows out of the second chamber; anda degasser in one or both of the first chamber and second chamber, wherein the degasser is configured to degas molten metal.2. The system of that further includes one or more of a launder claim 1 , a ladle claim 1 , an ingot mold and a feed die cast machine claim 1 , wherein when the molten metal flows out of the second chamber it flows into one or more of a launder claim 1 , a ladle claim 1 , an ingot mold claim 1 , and a feed die cast machine.3. The system of wherein the pump is a circulation pump.4. The ...

Подробнее
Номер записи: 92
20-08-2020 дата публикации

CHAOTIC STIRRING DEVICE AND METHOD COMBINING PLASMA ARC SMELTING AND PERMANENT MAGNET

Номер: US20200263926A1
Автор: Li Xia, REN Zhongming, Wang Jiang, Yu Jianbo, ZHANG Yujia, ZHANG Zhenqiang
Принадлежит:

A chaotic stirring device combining plasma arc smelting and permanent magnet including a furnace body; the furnace body is provided therein with a water-cooled copper crucible; the center of an upper surface of the water-cooled copper crucible is a groove for placing raw metals, and the water-cooled copper crucible is internally a hollow cavity; a return pipe is disposed directly below the groove in the hollow cavity; an upper end of the return pipe is vertical upward, and is horizontally provided with a filter screen; a spherical magnet is placed between the filter screen and the groove; one side of the water-cooled copper crucible is provided with a first water inlet pipe and a first water outlet pipe; the first water inlet pipe is connected to the hollow cavity, and the first water outlet pipe is connected to the bottom of the return pipe. 1. A chaotic stirring device combining plasma arc smelting and permanent magnet , wherein the device comprises a furnace body; the furnace body is provided therein with a water-cooled copper crucible; the center of an upper surface of the water-cooled copper crucible is a groove for placing raw metals;the water-cooled copper crucible is internally a hollow cavity; a return pipe is disposed at a place directly below the groove in the hollow cavity; an upper end of the return pipe is vertical upward, and is horizontally provided with a filter screen; a spherical magnet is placed between the filter screen and the groove; one side of the water-cooled copper crucible is provided with a first water inlet pipe and a first water outlet pipe;the first water inlet pipe is connected to the hollow cavity, and the first water outlet pipe is connected to the bottom of the return pipe, to form a water flow passage in the water-cooled copper crucible.2. The chaotic stirring device combining plasma arc smelting and permanent magnet according to claim 1 , wherein a tungsten electrode and a nozzle are disposed directly above the groove claim 1 , ...

Подробнее
Номер записи: 93
20-10-2016 дата публикации

SYSTEM AND METHOD FOR DEGASSING MOLTEN METAL

Номер: US20160305711A1
Автор: Cooper Paul V.
Принадлежит:

A system for adding gas to and transferring molten metal from a vessel and into one or more of a ladle, ingot mold, launder, feed die cast machine or other structure is disclosed. The system includes at least a vessel for containing molten metal, an overflow (or dividing) wall, a device or structure, such as a molten metal pump, for generating a stream of molten metal, and one or more gas-release devices. 1. A method for releasing gas into molten metal in a system comprising: a vessel for containing molten metal , the vessel comprising a bottom interior surface; a raised chamber in fluid communication with the vessel , the raised chamber comprising: (i) a bottom interior surface positioned at least partially above the bottom interior surface of the vessel; and (ii) a discharge for expelling molten metal from the raised chamber; and a plurality of degassers positioned in the raised chamber , the plurality of degassers releasing gas into the molten metal in the raised chamber; and a dividing wall between each of the degassers , each dividing wall including an opening through which molten metal can pass wherein the method comprises the steps of:(a) creating a flow of molten metal past each of the degassers;(b) releasing gas from each of the degassers into the flow of molten metal; and(c) the flow of molten metal passing into a launder or ladle after being degassed without first being retained in another vessel.2. The method of further comprising a pump positioned in the vessel for pumping the molten metal from the vessel to the raised chamber.3. The method of wherein the degassers are in line.4. The method of wherein the degassers are mounted on a top wall of the raised chamber.5. The method of wherein the raised chamber has side walls and the top wall of the raised chamber is removably attached to the side walls.6. The method of wherein the degassers are rotary degassers claim 1 , each rotary degasser comprising:(a) a shaft that extends into the raised chamber; and(b) ...

Подробнее
Номер записи: 94
27-10-2016 дата публикации

DEVICE FOR PRODUCING SEMI-SOLID SLURRY

Номер: US20160313062A1
Автор: GUO Hongmin, HUANG Chiwei, LIU Xubo, YANG Xiangjie
Принадлежит:

A device for producing semi-solid slurry, including a height adjustment mechanism, a position adjustment mechanism, a melt protection mechanism, a support mechanism, a revolving pipe, guide mechanisms, thermally-adapted elastic supports, a driving mechanism of the revolving pipe, and a cooling module. The height adjustment mechanism is a box structure including an upper casing and a lower casing. The position adjustment mechanism includes a stationary rail and a moving rail support, and the stationary rail is fixed on the upper casing of the height adjustment mechanism. The melt protection mechanism includes a seal box including a base plate fixed on the moving rail support. The support mechanism includes a main support frame and an angle adjustment bracket, the main support frame is fixed on the base plate of the seal box, and the angle adjustment bracket is mounted on the main support frame. 1. A device for producing semi-solid slurry , comprising:a height adjustment mechanism, the height adjustment mechanism being a box structure comprising an upper casing and a lower casing;a position adjustment mechanism, the position adjustment mechanism comprising a stationary rail and a moving rail support, the stationary rail being fixed on the upper casing of the height adjustment mechanism;a melt protection mechanism, the melt protection mechanism comprising a seal box comprising a base plate fixed on the moving rail support;a support mechanism, the support mechanism comprising a main support frame and an angle adjustment bracket, the main support frame being fixed on the base plate of the seal box, and the angle adjustment bracket being mounted on the main support frame;a revolving pipe, the revolving pipe comprising a material inlet and a material outlet and being supported by a support system, the support system comprising a front pillar, a rear pillar, and four guide wheels; the four guide wheels being hinged to the front pillar and the rear pillar, respectively; the ...

Подробнее
Номер записи: 95
27-10-2016 дата публикации

MAGNETIC PUMP INSTALLATION

Номер: US20160313065A1
Автор: RAUCH EDWIN L.
Принадлежит: Novelis Inc.

A magnetic pump in a pump well in a molten metal furnace with a long, relatively thin side wall that wraps around a significant fraction of the circumference of the pump, which facilitates creation of an eddy current based flow field in the molten material with better magnetic coupling, thereby enhancing the effectiveness of the pump. Breach of the well wall will not result in spillage of metal outside the furnace, and the well can be monitored for any such breach or other change so that the pump can be lifted out of the well to protect it from contact with the molten metal in the event of such a breach, or other appropriate action can be taken. 1. A molten metal furnace comprising:a furnace vessel;a pump well positionable inside the furnace vessel and spaced apart from exterior walls of the furnace vessel; and a magnetic pump at least partially within the pump well;', 'a detector for detecting breach of the pump well; and', 'a lift actuatable in response to a signal from the detector to lift the magnetic pump out of the pump well., 'an apparatus for agitating molten metal within the furnace vessel, the apparatus comprising2. The furnace of claim 1 , wherein the magnetic pump comprises a rotatable permanent magnet assembly and wherein the magnetic pump further comprises a motor for rotating the rotatable permanent magnet assembly.3. The furnace of claim 1 , wherein the magnetic pump comprises a stationary electromagnetic assembly.4. The furnace of claim 1 , further comprising a blower for injecting cooling medium into the pump well.5. The furnace of claim 4 , further comprising a jacket adapted for passing the cooling medium around the magnet assembly.6. The agitation apparatus of claim 1 , wherein the detector is a thermocouple.7. The agitation apparatus of claim 1 , wherein the detector is a conduction detector.8. A molten metal agitation apparatus for use in a non-ferrous molten metal furnace claim 1 , the apparatus comprising:a pump well positionable inside a ...

Подробнее
Номер записи: 96
05-11-2015 дата публикации

DEGASSER SNORKEL WITH SERPENTINE FLOW PATH COOLING

Номер: US20150315665A1
Автор: ELKSNITIS ANDREW, Sherman Michael J.
Принадлежит:

A snorkel () having a double shell core () that defines an annular gap () between the shells and that has an array of baffles () arranged in the annular gap to define a serpentine flow path for cooling gases that pass through the annular gap. In an embodiment, a snorkel includes a flange () that defines an internal passageway () such that the fluid pathway through annular gap () includes passage of cooling medium through internal passageway (). 1. A snorkel for use with a reaction vessel for degassing molten metal , said snorkel comprising:a first shell having an upper edge and a lower edge, said first shell defining a closed an outer surface and a closed an inner surface between said upper and lower edges;a second shell having an upper edge and a lower edge, said second shell defining a closed an outer surface and a closed an inner surface between said upper and lower edges, said second shell being oriented outside said first shell with the outer surface of said first shell opposing the inner surface of said second shell to define an annular gap therebetween, said second shell having an inlet opening and an outlet opening that are in fluid communication with said annual gap;a first refractory lining that is secured to the interior surface of said first shell;a second refractory lining that is secured to the outer surface of said second shell;an array of baffles, each baffle in said array of baffles being located in said annular gap between the outer surface of said first shell and the inner surface of said second shell and being located at a different respective longitudinal position of said annular gap, longitudinally adjacent baffles in said array cooperating with the outer surface of said first shell and the inner surface of said second shell to define at least first and second passageways, said inlet opening being in fluid communication with said outlet opening through said first passageway in series with said second passageway, at least one of said baffles ...

Подробнее
Номер записи: 97
03-10-2019 дата публикации

HOT MELT ADHESIVE SUPPLY AND METHODS ASSOCIATED THEREWITH

Номер: US20190299242A1
Автор: Chastine Christopher R., Clark Justin A., Estelle Peter W., Evans Howard B., Ganzer Charles P., Guerrero Manuel A., Ramosevac Enes, Riney John M., SHIN SANG HYUB, Varga Leslie J.
Принадлежит:

A melter melts particulate hot melt adhesive into a liquefied form. The melter includes a heated receiving device having an interior with an inlet that receives the particulate hot melt adhesive and an outlet. The heated receiving device melts the particulate hot melt adhesive and directs the liquified hot melt adhesive to the outlet. A prepackaged container holds a supply of the particulate hot melt adhesive and includes an outlet. A particulate hot melt adhesive feed device allows the particulate hot melt adhesive to be directed from the outlet of the prepackaged container to the inlet of the heated receiving device. 1. A melter configured to melt particulate hot melt adhesive into a liquefied form , the melter comprising:a heated receiving device having an interior with an inlet configured to receive the particulate hot melt adhesive and an outlet, the heated receiving device operative to melt the particulate hot melt adhesive and direct the liquified hot melt adhesive to the outlet;a prepackaged container holding a supply of the particulate hot melt adhesive and including an outlet; anda particulate hot melt adhesive feed device allowing the particulate hot melt adhesive to be directed from the outlet of the prepackaged container to the inlet of the heated receiving device.2. The melter of claim 1 , wherein the prepackaged container further comprises a flexible bag.3. The melter of claim 1 , wherein the prepackaged container further comprises a rigid container.4. The melter of claim 1 , further comprising a cover on the outlet of the prepackaged container claim 1 , the cover capable of being opened for establishing a flow path for the particulate hot melt adhesive through the outlet of the prepackaged container.5. The melter of claim 4 , wherein the cover further comprises a rupturable element.6. The melter of claim 1 , further comprising:a container mounting component positioned adjacent the heated receiving device, wherein the prepackaged container is directly ...

Подробнее
Номер записи: 98
03-11-2016 дата публикации

VESSEL TRANSFER INSERT AND SYSTEM

Номер: US20160320129A1
Автор: Cooper Paul V.
Принадлежит:

A system for removing molten metal from a vessel is disclosed. The system includes a pump and a refractory casing that houses the pump. As the pump operates it moves molten metal upward through an uptake section of the casing until it reaches an outlet wherein it exits the vessel. The outlet may be attached to a launder. Another system uses a wall to divide a cavity of the chamber into two portions. The wall has an opening and a pump pumps molten metal from a first portion into a second portion until the level in the second portion reaches an outlet and exits the vessel. 1. A device for use in transferring molten metal , the device comprising:(a) a housing with one or more exterior walls and an upper surface;(b) a cavity defined within the housing;(c) an opening in one of the one or more exterior walls; the opening in communication with the cavity and configured to be aligned with an utlet of a molten metal pump; and(d) one or more brackets on the upper surface, at least one of the brackets including one or more extensions, the one or more extensions for lifting the device and placing it into or out of a vessel for retaining molten metal.2. The device of further includes a first bracket for connecting to a molten metal pump and positioning the molten metal pump outlet next to the opening.3. The device of wherein the first bracket is configured to connect to a corresponding bracket on the molten metal pump.4. The device of that further includes a second bracket for connecting to a launder.5. The device of wherein the second bracket connects to a corresponding bracket on the launder.6. The device of that includes an outlet.7. The device of that further includes a launder attached to the outlet.8. The device of that further includes a launder and the launder has a bottom surface with an opening therein.9. The device of wherein the outer surface is rectangular.10. The device of that further includes a platform mounted on the top surface claim 1 , the platform for ...

Подробнее
Номер записи: 99
03-11-2016 дата публикации

VESSEL TRANSFER INSERT AND SYSTEM

Номер: US20160320130A1
Автор: Cooper Paul V.
Принадлежит:

A system for removing molten metal from a vessel is disclosed. The system includes a pump and a refractory casing that houses the pump. As the pump operates it moves molten metal upward through an uptake section of the casing until it reaches an outlet wherein it exits the vessel. The outlet may be attached to a launder. Another system uses a wall to divide a cavity of the chamber into two portions. The wall has an opening and a pump pumps molten metal from a first portion into a second portion until the level in the second portion reaches an outlet and exits the vessel. 1. A method for transferring molten metal by utilizing a pumping device for placement into a pumping well for pumping molten metal , the pumping device including (a) a pump having a motor , a rotor and a drive shaft connecting the motor to the rotor , and (b) a portable refractory housing in which the molten metal pump is positioned; the portable refractory housing including: (i) an inlet , (ii) an uptake tube having a height , and (iii) an outlet having a height , and in communication with the uptake tube , (c) the rotor being positioned in the uptake tube , and (d) the pump being removable from the portable refractory housing without removing the portable refractory housing from the pumping well , and the portable refractory housing also being removable from the pumping well , the method comprising the steps of:(a) operating the pump to turn the rotor;(b) in response to the rotor turning, moving molten metal upward into the uptake tube without creating a vortex at the surface of the molten metal inside of the chamber, after the level of molten metal inside the uptake tube reaches half the height or more of the height of the uptake tube; and(c) in response to the level of molten metal exceeding the height of the outlet, the molten metal exiting the chamber through the outlet.2. The method of wherein the rotor turns continuously until at least some molten metal exits the outlet.3. The method of ...

Подробнее
Номер записи: 100