发明名称 |
Method for manufacture of aluminum alloy casting |
摘要 |
A cast article of aluminum alloy is produced by pouring into a mold a molten Al-Si-Mg type casting alloy having an antimony (Sb) content in the range of about 0.03%-1.0% by weight and, while the alloy cast body is cooling following complete solidification but before its temperature has fallen below 450 DEG C., placing the solidified cast body into a heating furnace kept at temperatures in the range of from 500 DEG to 550 DEG C. and retaining it at an intermediately high-temperature within that temperature range for not more than 30 minutes, subsequently quenching said cast body in cold water or hot water and thereafter subjecting the quenched cast body to a conventional artificial aging treatment. The resulting cast articles are, in terms of strength, toughness and resistance to thermal shocks, comparable with or superior to cast articles obtained by conventional methods but can be manufactured in a reduced period of time with consequential savings in cost.
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申请公布号 |
US4420345(A) |
申请公布日期 |
1983.12.13 |
申请号 |
US19810321881 |
申请日期 |
1981.11.16 |
申请人 |
NIPPON LIGHT METAL COMPANY LIMITED |
发明人 |
ITO, TADAO;HASHIMOTO, AKIO |
分类号 |
C22F1/05;(IPC1-7):C22F1/04 |
主分类号 |
C22F1/05 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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