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一、前言Al—Si—Mg系的ZL104合金和Al—Si—Cu—Mg系的725、771合金是具有良好铸造性能的高强度铝合金,适宜于浇注形状
I. Introduction Al-Si-Mg based ZL104 and Al-Si-Cu-Mg based 725,771 alloys are high strength aluminum alloys with good casting properties and are suitable for casting shapes