公开(公告)号：US5045110A

公开(公告)日：1991-09-03

申请号：US525704

申请日：1990-05-21

申请人： Mattheus Vader ,  Jan Noordegraaf ,  Edward H. Klein Nagelvoort ,  Jan P. Mulder

发明人： Mattheus Vader ,  Jan Noordegraaf ,  Edward H. Klein Nagelvoort ,  Jan P. Mulder

IPC分类号： B22F9/08 ,  B22F9/10 ,  C22C1/02 ,  C22C1/03 ,  C22C1/04 ,  C22C21/00 ,  C22C21/04 ,  C22C24/00

CPC分类号： C22C21/04 ,  C22C1/026 ,  C22C1/03 ,  C22C1/0416

摘要： A process is described for the preparation of an aluminium-strontium master alloy suitable for use as structure refiner during the solidification of molten aluminium-silicon alloys, comprising atomizing a molten alloy containing 3 to 30% by weight of strontium, the balance being aluminium, quick cooling of the atomized droplets to obtain solid particles and consolidation of the obtained solid particles.

公开(公告)号：US5066323A

公开(公告)日：1991-11-19

申请号：US363848

申请日：1989-06-12

申请人： Jan P. Mulder

发明人： Jan P. Mulder

IPC分类号： B22D1/00 ,  C22C1/02 ,  C22C1/03 ,  C22C21/04

CPC分类号： C22C1/026 ,  C22C1/03 ,  C22C21/04

摘要： Hexafluorophosphates may be used as structure refiner during solidification of molten aluminium-silicon alloys. The structure refining effect is obtained almost immediately after addition of the hexafluorophosphate to the molten alloy. The hexafluorophosphates are preferably used in the form of a master composition wherein as diluents metals are used, especially copper.