发明名称 |
CYLINDER HEAD WITH VALVE SEAT AND METHOD FOR THE PRODUCTION THEREOF |
摘要 |
Cylinder head made of cast iron has valve seats provided therein. The valve seats include an annular bore provided in the cast-iron material, a nickel-based intermediate layer which is provided thereon and a contact layer which is provided on said intermediate layer. The contact layer has an air-hardening tool steel, wherein said layers are provided in such a manner that an annularly acting compressive stress is present near the free surface of said contact layer. The invention further includes a method for the production thereof.
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申请公布号 |
US2011239858(A1) |
申请公布日期 |
2011.10.06 |
申请号 |
US200913056929 |
申请日期 |
2009.08.03 |
申请人 |
SLOT HENDRIK MARCEL;KROSSE SEBASTIAAN MARIA;ZIJP JOHANNES PETRUZ |
发明人 |
SLOT HENDRIK MARCEL;KROSSE SEBASTIAAN MARIA;ZIJP JOHANNES PETRUZ |
分类号 |
F16J10/00;B23K26/00 |
主分类号 |
F16J10/00 |
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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