发明名称 |
NOCKENWELLE UND VERFAHREN ZU DEREN HERSTELLUNG |
摘要 |
A camshaft having a tubular steel shaft and a sintered cam piece joined to the shaft. The sintered cam piece has iron tetroxide film at its surface. The camshaft is produced by assembling a powder compact to the steel shaft to provide a camshaft assembly, sintering the assembly to provide an integral assembly, correcting bending to the assembly, annealing the assembly, grinding the cam piece and effecting vaporization treatment to the assembly at a temperature lower than the annealing temperature. |
申请公布号 |
DE4001392(A1) |
申请公布日期 |
1990.08.02 |
申请号 |
DE19904001392 |
申请日期 |
1990.01.18 |
申请人 |
NIPPON PISTON RING CO., LTD., TOKIO/TOKYO, JP |
发明人 |
SUZUKI, YASUO;TAKEGUCHI, SHUNSUKE, TOCHIGI, JP |
分类号 |
B22F7/06;C22C33/02;F01L1/047;F16H53/02 |
主分类号 |
B22F7/06 |
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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