Title:
ピストンリング
Document Type and Number:
Japanese Patent JP6784869
Kind Code:
B2
Abstract:
To provide a piston ring excellent in thermal setting resistance, and also excellent in side surface wear resistance even under such a high-temperature high-pressure environment as to be more than 300°C and up to 400°C, the base metal of the piston ring is a steel containing, by mass%, C: 0.30 to 0.65%, Si: 0.80 to 1.20%, Mn: 0.20 to 0.60%, Cr: 4.50 to 5.70%, Cu: 0.01 to 0.5%, and at least one of Mo, V, W, and Co: 0.2 to 5.4%.
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Inventors:
Takashi Kimura
Yuji Shima
Yuji Shima
Application Number:
JP2020515516A
Publication Date:
November 11, 2020
Filing Date:
April 24, 2019
Export Citation:
Assignee:
Riken Co., Ltd.
International Classes:
F16J9/26; F02F5/00
Foreign References:
| WO2018056282A1 | ||||
| WO2017022660A1 | ||||
| WO2017154309A1 | ||||
| WO2017155331A1 |
Attorney, Agent or Firm:
Takaishi Tachibana
Kenji Takaishi
Kenji Takaishi