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Invention Grant
CN101526046B 活塞环 有权

活塞环
Abstract:
活塞环包括：精炼钢，所述精炼钢含有：0.20％质量至0.90％质量的碳C、0.10％质量至小于0.60％质量的硅Si、0.20％质量至1.50％质量的锰Mn、0.30％质量至2.00％质量的铬Cr和剩余物，所述剩余物包括：铁Fe和不可避免的杂质。由以下表达式(1)基于Si、Mn和Cr的含量计算的参数A为9.0或更小：参数A＝8.8Si+1.6Mn+1.7Cr---表达式(1)。由以下表达式(2)基于C、Si、Mn和Cr的含量计算的参数B为10.8或更大：参数B＝36C+4.2Si+3.8Mn+4.5Cr---表达式(2)。
Abstract(English):

A piston ring (R) includes: a refined steel including: carbon C in a range of 0.20 % mass to 0.90 % mass, silicon Si in a range of 0.10 % mass to less than 0.60 % mass, manganese Mn in a range of 0.20 % mass to 1.50 % mass, chromium Cr in a range of 0.30 % mass to 2.00 % mass, and a remnant including: iron Fe, and an unavoidable impurity. A parameter A calculated from the following expression (1)based on contents of the Si, Mn and Cr is 9.0 or less: parameter A = 8.8 Si + 1.6 Mn + 1.7 Cr --- expression (1). A parameter B calculated from the following expression (2) based on contents of the C, Si, Mn and Cr is 10.8 or more: parameter B = 36 C + 4.2 Si + 3.8 Mn + 4.5 Cr --- expression (2).

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