Title:
The piston ring which has the wear prevention layer and the corrosion-resistant frank side of chromium solid particles
Document Type and Number:
Japanese Patent JP6049151
Kind Code:
B2
Abstract:
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.
Inventors:
Help strike-Dederix, Christian
Urbacca, Valdemar
Durdot, Stephan
Esser, Peter-Klaus
Urbacca, Valdemar
Durdot, Stephan
Esser, Peter-Klaus
Application Number:
JP2014561301A
Publication Date:
December 21, 2016
Filing Date:
December 07, 2012
Export Citation:
Assignee:
FEDERAL-MOGUL BURSCHEID GMBH
International Classes:
F16J9/26; F02F5/00; F16J9/20
Domestic Patent References:
| JP2085570A | ||||
| JP2004190560A | ||||
| JP2002257237A | ||||
| JP2011516726A | ||||
| JP2009507160A |
Foreign References:
| WO2003098079A1 | ||||
| DE102007038188A1 | ||||
| US4570946 |
Attorney, Agent or Firm:
Michiharu Soga
Kajinami order
Masahiro Taguchi
Ichiro Oi
Kazuhiro Mitsunaga
Kanayama Asuka
Kajinami order
Masahiro Taguchi
Ichiro Oi
Kazuhiro Mitsunaga
Kanayama Asuka