Title:
航空機産業に由来するアルミニウム合金製のスクラップのリサイクル方法
Document Type and Number:
Japanese Patent JP2009541585
Kind Code:
A
Abstract:
A manufacturing process for a remelt block containing aluminum designed for making aluminum alloy for the aircraft industry in which scrap containing mainly aluminum alloys used in the aircraft industry is supplied during a supply stage, the scrap is melted in a smelting furnace in order to obtain an initial molten metal bath during a smelting stage, the initial molten metal bath is subjected to purification by fractional crystallization in order to obtain a solidified mass and a bath of residual liquid during a segregation stage, and the solidified mass is recovered in order to obtain a remelt block during a recovery stage. The invention is particularly useful for the recycling of aluminum alloys used in the aircraft industry as it makes it possible to purify scrap of series 2XXX or series 7XXX alloys for iron and silicon, without eliminating additive elements such as zinc, copper and magnesium.
Inventors:
Verdier, Jean-Francois
Butyruil, Jean-Remy
Leroy, Michelle
Varax, Didier
Butyruil, Jean-Remy
Leroy, Michelle
Varax, Didier
Application Number:
JP2009515910A
Publication Date:
November 26, 2009
Filing Date:
June 18, 2007
Export Citation:
Assignee:
ALCAN RHENALU
International Classes:
C22B21/06; B22D25/06; C22B7/00; C22B9/02; C22C1/02
Domestic Patent References:
| JPH0827528A | 1996-01-30 | |||
| JPH10328620A | 1998-12-15 | |||
| JP2002155322A | 2002-05-31 | |||
| JPS6267128A | 1987-03-26 | |||
| JP2005532473A | 2005-10-27 | |||
| JPH07166259A | 1995-06-27 | |||
| JP2002534603A | 2002-10-15 |
Attorney, Agent or Firm:
Keiichi Ota