| 发明名称 |
IMPROVING METHOD FOR TOUGHNESS OF STEEL MATERIAL |
| 摘要 |
PURPOSE:To improve the toughness of a steel material in casting of steel by increasing the cooling rate in an austenite formation process after solidification and carrying out rolling or forging without converting the austenite so as to make the austenite grains fine. |
| 申请公布号 |
JPS544224(A) |
申请公布日期 |
1979.01.12 |
| 申请号 |
JP19770068402 |
申请日期 |
1977.06.11 |
| 申请人 |
NIPPON STEEL CORP |
发明人 |
OZAWA TSUTOMU;INOUE YASUSHI |
| 分类号 |
B22D11/124;B22D27/04;C21D7/13;C21D8/00 |
主分类号 |
B22D11/124 |
| 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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