混合稀土共晶Al―Si合金在内燃机活塞工业的应用研究

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Based on the eutectic Al-Si alloys in industrial production, replaced the 1.2% Ni composition by using a- bout 1% of the mixed rare earth elements to produce piston entity. Detected the peKormance indicators on the rare earth eutectic A1-Si Piston and compared with the same pistons without replacement of rare earth, and concluded the technology is worth the popularization and application of the internal combustion engine piston industry.在工业生产所使用的共晶铝硅合金基础上，用1％左右的混合稀土元素替换1．2％的Ni成分，生产出活塞实体。对稀土共晶Al―si活塞进行了各项性能指标的检测，并与未作成分替换时生产的同种活塞的各项性能指标进行了比较分析，得出了该技术值得在内燃机活塞工业中推广应用的结论。