发明授权
- 专利标题: Process for production of oil control rings
- 专利标题(中): 油控环生产工艺
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申请号: US679890申请日: 1976-04-26
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公开(公告)号: US4106977A公开(公告)日: 1978-08-15
- 发明人: Heck Klaus
- 申请人: Heck Klaus
- 申请人地址: DEX
- 专利权人: Audi Nsu Auto Union Aktiengesellschaft
- 当前专利权人: Audi Nsu Auto Union Aktiengesellschaft
- 当前专利权人地址: DEX
- 优先权: DEX2520698 19750509
- 主分类号: F02F5/00
- IPC分类号: F02F5/00 ; B23P15/08 ; B24B19/11 ; B32B18/00 ; C23F1/00 ; F16J9/20 ; F16J9/26 ; F16J15/34 ; C23F1/02
摘要:
A process for the production of oil control rings having a scraper edge formed by a layer consisting of a wear-resistant material. The wear-resistant layer is embedded between two softer layers. Thereafter, the scraper edge is machined and the soft layers recessed by etching to expose the scraper edges.
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