发明名称 |
Valve seat rings made of basic Co or Co/Mo alloys, and production thereof |
摘要 |
A cylinder head for internal combustion engines, comprising a metallic valve seat ring that is formed by a thermally sprayed homogeneous layer made of a basic Co or Co/Mo alloy. The sum of the Co content and Mo content in the alloy exceeds 50 percent by weight while the Fe content lies below 5 percent by weight. Also disclosed is a method for thermally spraying said valve seat ring by means of an arc wire spraying process with the aid of at least two filler wires and/or composite wires, the essential Co portion in the deposited layer being delivered by the jacket of the filler wire and/or the matrix of the composite wire.
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申请公布号 |
US7401586(B2) |
申请公布日期 |
2008.07.22 |
申请号 |
US20040566624 |
申请日期 |
2004.07.21 |
申请人 |
DAIMLER AG |
发明人 |
ESSWEIN ERNST;GRAU STEFAN;HAUG TILMANN;SAGEL ALEXANDER |
分类号 |
F02N3/00;B21K1/22;B23K9/04;B23K35/02;B23K35/30;C23C4/04;C23C4/06;C23C4/08;C23C4/12 |
主分类号 |
F02N3/00 |
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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