碳当量对Cr—Cu-Ni合金灰铸铁冷激凸轮轴铸造弯曲变形的影响  

Effect of Carbon Equivalent on Bending Deformation of Cr-Cu-Ni Alloy Cast Iron Camshafts

作　　者：沈保罗[1,2] 李莉 高致文 张昊 

机构地区：[1]四川大学材料科学与工程学院,四川成都610064 [2]成都金顶凸轮轴铸造有限公司,四川郫县611732

出　　处：《铸造工程》2014年第1期15-17,共3页Foundry Engineering

摘　　要：设计了碳当量高低不同的两组铸铁，浇注凸轮轴考察其变形情况。采用大量数据统计分析碳当量对Cr-Cu—Ni合金灰铸铁冷激凸轮轴弯曲变形的影响。对统计数据初步分析的结果表明，提高铸铁的碳当量，并将其控制在4．10％～4．25％，可以将过度弯曲变形（跳动超过1mm）凸轮轴的数量减少80％左右。Two sets of cast iron with different carbon equivalent were designed, and the camshafts were poured to observe their bending deformation. A large amount of data was used for statistical analysis on effect of the carbon equivalent on the bending deformation of a kind of Cr-Cu-Ni alloy chilled cast iron camshaft. A preliminary analysis of statistics shows that the number of camshafts with excessive deformation （radial runout more than 1 mm） can be reduced about 80% by increasing carbon equivalent and controlling it in range of 4.10%-4.25%.

关 键 词：冷激凸轮轴 合金铸铁 弯曲变形 碳当量 

分 类 号：TG143.2[一般工业技术—材料科学与工程]