发明授权
- 专利标题： Piston ring with chromium solid particle wear-prevention layer and corrosion-resistant flank surface
- 专利标题（中）： 活塞环采用铬固体颗粒防磨层和耐腐蚀侧面
-
申请号： US14385327申请日： 2012-12-07
-
公开(公告)号： US09404578B2公开(公告)日： 2016-08-02
- 发明人: Christian Herbst-Dederichs , Waldemar Urbatzka , Stefan Duerdoth , Peter-Klaus Esser
- 申请人： Federal-Mogul Burscheid GmbH
- 申请人地址： DE Burscheid
- 专利权人： Federal-Mogul Burscheid GmbH
- 当前专利权人： Federal-Mogul Burscheid GmbH
- 当前专利权人地址： DE Burscheid
- 代理机构： Patterson Thuente Pedersen, P.A.
- 国际申请： PCT/EP2012/074839 WO 20121207
- 国际公布： WO2013/135325 WO 20130919
- 主分类号： F16J9/26
- IPC分类号： F16J9/26 ; C23C8/26 ; C23C8/80 ; C23C8/34 ; C23C8/04 ; C23C8/28 ; C23C28/00 ; C25D5/02 ; C25D5/48 ; C25D7/04
摘要：
A coated piston ring having a base body of chromium steel with more than 10 wt.-% chromium and having an inner circumferential surface, a first flank surface, a second flank surface and an outer circumferential surface. The first flank surface comprises a nitride diffusion layer with a layer thickness of from 5-300 μm, a nitride connecting layer with a layer thickness of from 0.5-15 μm on the nitride diffusion layer, and an oxide layer with a layer thickness of from 0.05-3 μm on the nitride connecting layer. The second flank surface comprises the nitride diffusion layer, and the outer circumferential surface comprises the nitride diffusion layer and a chromium solid particle layer with 0.1-30 vol.-% solid particles, relative to the total volume of the chromium solid particle layer on the nitride diffusion layer.
公开/授权文献
信息查询
