公开(公告)号：EP1213366A2

公开(公告)日：2002-06-12

申请号：EP01307824.1

申请日：2001-09-14

申请人： RYOBI LTD. ,  HONDA GIKEN KOGYO KABUSHIKI KAISHA

发明人： Komazaki, Toru ,  Nishi, Naomi ,  Sasaki, Hideto ,  Fukuchi, Fumiaki, c/o K.K. Honda Gijutsu Kenkyusho ,  Mikasa, Tetsuo, c/o K.K. Honda Gijutsu Kenkyusho ,  Kubo, Nobuo, c/o K.K. Honda Gijutsu Kenkyusho

IPC分类号： C22C21/02 ,  B22D17/00

CPC分类号： C22C21/02 ,  B22D17/00

摘要： An aluminum alloy for die-casting capable of being used in high pressure die-casting method, and capable of providing a product having a sufficiently high strength and elongation without T6 treatment after casting and endurable under a corrosive atmosphere. Such aluminum alloy is used as a material of a subordinate frame for an automobile. The aluminum alloy contains from 8.0 to 9.0 mass % of Si, from 0.35 to 0.45 mass % of Mg, from 0.3 to 0.4 mass % of Mn, from 0.002 to 0.008 mass % of Be, less than 0.20 mass % of Fe, not more than 0.2 mass % of Cu, not more than 0.1 mass % of Zn, not more than 0.1 mass % of Ni, not more than 0.1 mass % of Sn, and remainders of Al and inevitable impurities. High pressure die casting is performed with this alloy by a die-casting machine provided with a seal ring disposed over a plunger tip, liquidized gaskets, a sealing rubber and a pin seal plate those being capable of providing high sealability and high vacuum in a mold cavity.