发明名称 |
HARDMETALL FOR FJELLBORING, MINERALSKJAERING OG MOTORVEITEKNIKK. |
摘要 |
The invention relates to a coated cemented carbide body for rock drilling having a substrate containing at least one metal carbide and a binder metal and an at least partly covering coating comprising at least one diamond- or cBN- layer applied by CVD- or PVD-technique. The cemented carbide body has a core of cemented carbide containing eta-phase surrounded by a surface zone of cemented carbide free of eta-phase. <IMAGE> |
申请公布号 |
NO912305(D0) |
申请公布日期 |
1991.06.14 |
申请号 |
NO19910002305 |
申请日期 |
1991.06.14 |
申请人 |
SANDVIK AB |
发明人 |
EDERYD, STEFAN;SOEDERBERG, STAFFAN |
分类号 |
C22C29/08;C23C14/06;C23C16/26;C23C16/27;C23C16/30;C23C16/34;(IPC1-7):E21B/ |
主分类号 |
C22C29/08 |
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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