Title:
積層被覆膜とその製造方法およびピストンリング
Document Type and Number:
Japanese Patent JP6842165
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a film deposition technique such that a CrN layer can be coated with a hard carbon layer through a series of processes in the same film deposition apparatus, and superior slide characteristics can be stably secured by making the hard carbon layer exhibit its low friction as well as wear resistance and peeling resistance that the CrN layer has by securing adhesion of the hard carbon layer to the CrN layer more than before.SOLUTION: The present invention relates to a laminate coating film which has a CrN layer formed as a ground layer on a base material and also has a hard carbon layer laminated on the CrN layer. The CrN layer has a columnar crystal structure such that an intensity ratio (111)/(200) of X-ray diffraction of a (111) plane to a (200) plane is 0.50-3.0 and also has a surface of 0.5-2.5 μm in surface roughness at a maximum height Rz specified by ANSI B46.1 or 16-35% at a load length rate Mr1 specified by JIS B 0671-2.SELECTED DRAWING: Figure 1
Inventors:
Akinori Shibata
Hideki Moriguchi
Hideki Moriguchi
Application Number:
JP2017052753A
Publication Date:
March 17, 2021
Filing Date:
March 17, 2017
Export Citation:
Assignee:
Japan ITF Co., Ltd.
International Classes:
C23C14/06; B32B9/00; B32B15/04; F02F5/00; F16J9/26
Domestic Patent References:
| JP2013249491A | ||||
| JP2009520914A | ||||
| JP2003113941A | ||||
| JP2015516506A | ||||
| JP2016183382A | ||||
| JP8312779A |
Attorney, Agent or Firm:
Tetsuji Kamidai
Naomi Kamino
Naomi Kamino