发明名称 |
HARTMETALL- ODER CERMETKÖRPER UND VERFAHREN ZU SEINER HERSTELLUNG |
摘要 |
A hard metal or cermet body has a 2 to 100 mum thick first layer having a binder metal proportion of 2 to 25 mass % and up to 25 volume % of a nitride or carbonitride of one or more metals of Group IVa of the periodic system or up to 10 volume % of a carbide or carbonitride of V, Nb, Ta or Cr, balance WC, whereby the amount of nitride, carbonitride or carbide of the afore-mentioned metals amounts to at least 0.01 volume %. Under the first layer is a 2 to 40 mum thick second layer with an enhanced nitrogen proportion relative to the first layer, is disposed. Thereunder is a transition zone with a thickness of 2 to 100 mum in which the composition gradually changes to a homogeneous composition in the inner core of the hard metal or cermet body. |
申请公布号 |
DE502004011588(D1) |
申请公布日期 |
2010.10.07 |
申请号 |
DE20045011588T |
申请日期 |
2004.05.14 |
申请人 |
KENNAMETAL WIDIA PRODUKTIONS GMBH & CO. KG |
发明人 |
LENGAUER, WALTER;UCAKAR, VERA;DREYER, KLAUS;KASSEL, DIETER;DAUB, HANS WERNER |
分类号 |
C22C29/00;B22F3/10;C21D1/34;C21D1/76;C22C1/05;C23C30/00 |
主分类号 |
C22C29/00 |
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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