380压铸合金成分的变化对力学性能的影响

Influence of Chemical Composition Change of 380 Aluminum Alloy on Mechanical Properties

试验分析了３８０压铸合金化学成分的不同配比对力学性能的影响。结果表明高合金含量配制的３８０铝合金与低合金含量配制的３８０铝合金相比，前者抗拉强度、屈服强度及硬度高，而后者伸长率高，标准的３８０铝合金成分则在二者之间。实际应用中，应根据零件对力学性能的具体要求合理选配。

Different rations of chemical composition of 380 die casting alloy are analyzed. The results show that 380 alloy with high alloy has a higher tensile strength,yielding strength and hardness while 380 with low alloy has higher elongation. Chemical composition of 380 alloy with excellent comprehensive properties should be proper.