发明名称 |
Method of making oil scraper piston rings |
摘要 |
A method of making an oil scraper piston ring includes the following steps of providing a base ring body including a circumferential web having flanks and an outer circumferential surface; galvanically depositing on the web a wear resistant hard chromium layer having solid particles embedded therein; applying a break-off resistant cover layer to the hard chromium layer; and grinding the cover layer to provide the outer circumferential surface of the web with sharp bounding edges
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申请公布号 |
US6199274(B1) |
申请公布日期 |
2001.03.13 |
申请号 |
US19980203174 |
申请日期 |
1998.11.30 |
申请人 |
FEDERAL-MOGUL BURSCHEID GMBH |
发明人 |
PREYER KARLFRIED |
分类号 |
F02F5/00;C25D5/12;C25D15/02;F16J9/06;F16J9/20;(IPC1-7):B23P15/06 |
主分类号 |
F02F5/00 |
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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