| 发明名称 |
PROCESS FOR IMPROVING THE DURABILITY OF HYDRAULIC CHISELS |
| 摘要 |
A process is disclosed for improving the durability of hydraulic chisels. After hardening and tempering the chisel up to 50-53 HRC, the outer diameter (3), including the cut-out (6), is once again tempered at high temperatures over depth (5) to achieve surface hardness from 40 to 43 HRC. |
| 申请公布号 |
WO9715421(A1) |
申请公布日期 |
1997.05.01 |
| 申请号 |
WO1996DE01967 |
申请日期 |
1996.10.17 |
| 申请人 |
HUNGER, CHRISTIAN;FISCHER, HANS-GERD |
发明人 |
HUNGER, CHRISTIAN;FISCHER, HANS-GERD |
| 分类号 |
B25D17/02;(IPC1-7):B25D17/02 |
主分类号 |
B25D17/02 |
| 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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