| 发明名称 |
STEEL SPRING, AND STEEL BAR AND METHOD FOR PRODUCING SAME |
| 摘要 |
A hot rolled steel bar is subjected to controlled hot roll finishing and cooling conditions which, together with the composition of the steel and controlled subsequent heat treating and quenching conditions, enable the formation of a steel spring having both relatively high hardness and high toughness.
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| 申请公布号 |
CA2071190(C) |
申请公布日期 |
1999.12.07 |
| 申请号 |
CA19922071190 |
申请日期 |
1992.06.12 |
| 申请人 |
|
发明人 |
HEITMANN, WILLIAM E.;RASTOGI, PRABHAT K.;OAKWOOD, THOMAS G. |
| 分类号 |
C21D1/25;C21D8/00;C21D9/02;C22C38/24;(IPC1-7):C22C38/24;B21B1/00;F16F1/02 |
主分类号 |
C21D1/25 |
| 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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