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1前言铝及铝合金冷拉（轧）圆管主要用于飞机和火箭上的导管、小型导弹的壳体、原子反应堆中的轴棒套管、运载火箭上的燃料管以及航空、航天、兵器、电子、化工、纺织、机械等工业中要求刚度大、重量轻的结构件，是国民经济和国防现代化建设不可缺少的重要轻金属材料。本文所说
1 Introduction Aluminum and aluminum alloy cold drawing (rolling) pipe is mainly used for aircraft and rockets on the catheter, the shell of small missiles, atomic rod bushing in nuclear reactors, rocket fuel pipe and aviation, aerospace, weapons It is an important light metal material indispensable to the national economy and national defense modernization in the industries of electronics, chemicals, textiles and machinery requiring rigidity and light weight. This article said