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Title:
METHOD OF OBTAINING ALUMINIUM-SILICON ALLOYS
Document Type and Number:
WIPO Patent Application WO/1997/033008
Kind Code:
A1
Abstract:
The invention pertains to the metallurgy of non-ferrous metals and alloys. In order to obtain aluminium-silicon alloys in a form suitable for subsequent use, silicon-containing compounds are added to an aluminium melt which is then made to absorb hydrogen, an additive is introduced at a temperature of not less than 750 �C, the melt is allowed to stand for a time and the cycle is repeated. Quartz sand or crystalline silicon is used as the silicon-containing compound, while the additive used comprises an asbestos wad wetted in a water-graphite suspension, slags from silumin production, boric acid, aluminium hydroxide and titanium. Absorption of hydrogen is achieved either by the introduction of additives or with steam. The reaction mixture is allowed to stand for 20-40 minutes, the slag is removed and the metal is poured.

Inventors:
Fedotov, Vladimir Mikhailovich
Application Number:
PCT/RU1996/000363
Publication Date:
September 12, 1997
Filing Date:
December 26, 1996
Export Citation:
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Assignee:
Fedotov, Vladimir Mikhailovich
International Classes:
C22C1/06; C22C1/02; C22C21/02; (IPC1-7): C22C1/02; C22C21/02
Foreign References:
SU1772198A1
RU2002831C1
SU1203917A1
DE1202984B
EP0396388A2
US5069875A
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