发明名称 |
ELONGATED ELEMENT AND STEEL FOR PERCUSSIVE ROCK DRILLING |
摘要 |
The present invention relates to a martensitic, corrosion resistant steel fo r rock drilling with properties adjusted essentially with regard to resistance against corrosion fatigue. This has been obtained in that an elongated eleme nt for percussive rock drilling which includes at least a thread and a flush channel has been made in a corrosion resistant steel with a mainly martensit ic structure.
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申请公布号 |
CA2395825(A1) |
申请公布日期 |
2001.08.23 |
申请号 |
CA20012395825 |
申请日期 |
2001.02.13 |
申请人 |
SANDVIK AB |
发明人 |
LINDEN, JOHAN;LUNDELL, LARS-GUNNAR |
分类号 |
C22C38/18;C22C38/00;C22C38/20;C22C38/22;C22C38/42;C22C38/44;E21B17/042;(IPC1-7):C22C38/18 |
主分类号 |
C22C38/18 |
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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