Patent ID: 8202347
Filing Date: 2012-06-19
Classification: C22B,Y02P

Abstract:
1. A manufacturing process for a remelt block containing aluminum designed for making aluminum alloy for the aircraft industry in which (i) scrap containing mainly aluminum alloys used in the aircraft industry is supplied during a supply stage; (ii) said scrap is melted in a smelting furnace in order to obtain an initial molten metal bath during a smelting stage; (iii) 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 (iv) the solidified mass is recovered in order to obtain a remelt block during a recovery stage; wherein a floating bed of scrap is created on the molten metal bath during whole or part of the smelting stage.