发明名称 |
PRESSURE RING AND FABRICATION METHOD THEREFOR |
摘要 |
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 SKS93 in JIS G 4404 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. |
申请公布号 |
EP2725264(A1) |
申请公布日期 |
2014.04.30 |
申请号 |
EP20120801952 |
申请日期 |
2012.06.21 |
申请人 |
KABUSHIKI KAISHA RIKEN |
发明人 |
SHIMA YUJI;KAMON, RYOUICHI |
分类号 |
F16J9/26;C21D1/25;C21D1/26;C21D1/32;C21D5/00;C21D6/00;C21D9/00;C21D9/40;C21D9/52;C22C38/00;C22C38/02;C22C38/04;C22C38/18;C22C38/20;C22C38/22;C22C38/24;C22C38/40;C22C38/58;F02F5/00 |
主分类号 |
F16J9/26 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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