| 发明名称 |
COOLING WITH PREVENTION OF OXIDATION |
| 摘要 |
PURPOSE:In the quenching of tool steel etc. by air cool, degradation of products quality due to oxidation is prevented by adoption of innert gas as a cooling atmosphere. |
| 申请公布号 |
JPS5278706(A) |
申请公布日期 |
1977.07.02 |
| 申请号 |
JP19750155041 |
申请日期 |
1975.12.26 |
| 申请人 |
HITACHI LTD |
发明人 |
ITOU KENICHI;NARITA MAMORU |
| 分类号 |
C21D1/00;C21D1/18;C21D1/84 |
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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