Title:
圧力リング及びその製造方法
Document Type and Number:
Japanese Patent JP5676146
Kind Code:
B2
Abstract:
To provide a price-competitive compression ring having excellent thermal conductivity and thermal sag resistance, which can be used in a high-thermal-load environment of high-compression-ratio engines, steel identified by the material number of SUP 10 in JIS G 4801, which contains small amounts of alloying elements, is used, and a piston ring wire is annealed before an oil-tempering treatment such that spheroidal cementite having an average particle size of 0.1-1.5 µm is dispersed in a tempered martensite matrix, thereby suppressing the movement of dislocation and creep even at 300°C, and improving thermal sag resistance.
Inventors:
島 祐司
高橋 純也
加門 良一
高橋 純也
加門 良一
Application Number:
JP2010119048A
Publication Date:
February 25, 2015
Filing Date:
May 25, 2010
Export Citation:
Assignee:
株式会社リケン
トクセン工業株式会社
トクセン工業株式会社
International Classes:
F16J9/26; F02F5/00
Attorney, Agent or Firm:
Kitsuma Takaishi