发明名称 |
Method of producing steel components that simultaneously have high strength and high ductility and which retain these properties even after a hot forming operation |
摘要 |
A steel with a carbon content of less than 0.3 percent by weight is used for steel-based components which are subjected to hot forming. A predominantly lower bainite structure is achieved by controlled cooling. The advantage is that components, such as truck steering knuckles, which are forged at temperatures of up to about 1300 DEG C., no longer need be subjected to annealing or tempering after cooling in order to possess good ductility in addition to high strength.
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申请公布号 |
US4737202(A) |
申请公布日期 |
1988.04.12 |
申请号 |
US19860909744 |
申请日期 |
1986.09.19 |
申请人 |
M A N NUTZFAHRZEUGE GMBH |
发明人 |
MUELLER, HANS;ALBERT, MAX |
分类号 |
C21D1/00;C21D1/20;C21D9/00;C22C38/12;(IPC1-7):C21D1/68 |
主分类号 |
C21D1/00 |
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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