发明名称 |
STEEL PRODUCTS FOR PISTON RINGS AND PISTON RINGS |
摘要 |
A steel product having a composition which contains by mass C: 0.01 to 1.9%, Si: 0.01 to 1.9%, Mn: 5.0 to 24.0% with balance consisting of Fe and unavoidable impurities and a steel product described above which further contains Cr: 18.0% or below and/or Ni: 12.0% or below in addition to the above essential elements. The above steel products may each further contain Al: 1% or below and/or N: 0.3% or below and the above steel products may each further contain one or more elements selected from among Nb, Ti, Zr, Mo and Cu in a total amount of 4.0% or below. The steel products can sufficiently follow the thermal expansion of a cylinder made of an aluminum alloy and thus enables the production of a piston ring which is suitable for use as a piston ring to slide on the inner face of a cylinder bore made of an aluminum alloy in an internal combustion engine and which can retain excellent sealing properties.
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申请公布号 |
US2010253006(A1) |
申请公布日期 |
2010.10.07 |
申请号 |
US20080744411 |
申请日期 |
2008.11.28 |
申请人 |
NIPPON PISTON RING CO., LTD |
发明人 |
ISHIKAWA YOSHIKI;TAKAKI SEISUKE;ONODA MOTONOBU |
分类号 |
F16J9/26;C22C38/00;C22C38/04;C22C38/08;C22C38/16;C22C38/18;C22C38/38;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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