发明名称 |
Camshaft and method for producing the same |
摘要 |
A method for producing 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.
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申请公布号 |
US5064608(A) |
申请公布日期 |
1991.11.12 |
申请号 |
US19910651730 |
申请日期 |
1991.02.05 |
申请人 |
NIPPON PISTON RING CO., LTD. |
发明人 |
SUZUKI, YASUO;TAKEGUCHI, SHUNSUKE |
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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