RU93007352A - METHOD FOR PROCESSING ALUMINUM ALLOYS CONTAINING LITHIUM - Google Patents

METHOD FOR PROCESSING ALUMINUM ALLOYS CONTAINING LITHIUM

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Publication number
RU93007352A
RU93007352A RU93007352/02A RU93007352A RU93007352A RU 93007352 A RU93007352 A RU 93007352A RU 93007352/02 A RU93007352/02 A RU 93007352/02A RU 93007352 A RU93007352 A RU 93007352A RU 93007352 A RU93007352 A RU 93007352A
Authority
RU
Russia
Prior art keywords
vacuuming
mixer
melt
overflow
stage
Prior art date
Application number
RU93007352/02A
Other languages
Russian (ru)
Inventor
С.Б. Комаров
В.Е. Анферов
Б.В. Овсянников
В.И. Благодатский
Original Assignee
С.Б. Комаров
Filing date
Publication date
Application filed by С.Б. Комаров filed Critical С.Б. Комаров
Publication of RU93007352A publication Critical patent/RU93007352A/en

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Claims (1)

Способ относится к металлургии цветных металлов и может быть использован для рафинирования алюминиевых сплавов, содержащих литий. Способ включает приготовление расплава в печи, перелив по металлопроводу в миксер с атмосферой инертного газа, вакуумирование в две стадии, отстаивание расплава с последующей разливкой в слитки. Новым в способе является то, что первую стадию вакуумирования выполняют в процессе перелива расплава в миксер путем создания в нем разрежения, перелив проводят при 765-800°С, причем при переливе в металлопроводе создают знакопеременное, не менее четырехкратное, изменение направления движения струи в вертикальной плоскости при суммарном угле изменения вектора движения струи не менее 300°, перед второй стадией вакуумирования поверхность расплава в миксере очищают от шлака, вторую стадию вакуумирования проводят при 710 - 760°С, а разливку в слитки - при наличии разрежения в миксере. Это позволит снизить содержание водорода в сплаве, повысить литейные свойства, пластичность сплава и производительность процесса.The method relates to the metallurgy of non-ferrous metals and can be used for refining aluminum alloys containing lithium. The method includes the preparation of the melt in a furnace, overflowing the metal pipe into a mixer with an inert gas atmosphere, vacuuming in two stages, settling the melt, followed by casting into ingots. New in the method is that the first stage of vacuuming is performed in the process of melt overflow into the mixer by creating a vacuum in it, the overflow is carried out at 765-800 ° C, and at overflow in the metal conduit they create an alternating, at least fourfold, change in the direction of jet movement plane at a total angle of change of the motion vector of the jet is not less than 300 °; before the second stage of vacuuming, the surface of the melt in the mixer is cleaned of slag, the second stage of vacuuming is carried out at 710 - 760 ° С, and the ingot is cast - if there is a vacuum in the mixer. This will reduce the hydrogen content in the alloy, improve casting properties, ductility of the alloy and process performance.
RU93007352/02A 1993-02-05 METHOD FOR PROCESSING ALUMINUM ALLOYS CONTAINING LITHIUM RU93007352A (en)

Publications (1)

Publication Number Publication Date
RU93007352A true RU93007352A (en) 1995-09-20

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2463364C1 (en) * 2011-05-03 2012-10-10 Открытое акционерное общество "Каменск-Уральский металлургический завод" Method to produce ingots from aluminium alloys containing lithium

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2463364C1 (en) * 2011-05-03 2012-10-10 Открытое акционерное общество "Каменск-Уральский металлургический завод" Method to produce ingots from aluminium alloys containing lithium

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