形变时效对不同Cu含量的稀土铝电工圆杆的影响

发布时间：2018-02-09 01:01

  本文关键词： 形变热处理 铝电工圆杆 导电率 抗拉强度　出处：《中国有色金属学报》2017年08期 　论文类型：期刊论文

【摘要】：铝电工圆杆是电缆、电线的坯料,其质量好坏直接影响铝导线的优劣。通过扫描电镜、X射线物相分析等方法,对比铸态、轧制态和形变时效态下不同Cu含量的稀土铝电工圆杆的抗拉强度和导电率,研究形变热处理对铝电工圆杆的影响。结果表明:经过形变热处理后,试样的晶界得到薄化,组织更加均匀;当Cu含量为0.2%时,通过(500℃,3 h固溶处理)+85%轧制+(150℃,12 h时效)的形变热处理,试样抗拉强度达到179 MPa,导电率为60.78%IACS,综合性能较佳。
[Abstract]:The aluminum electrician round rod is the billet of cable and wire, and its quality directly affects the quality of aluminum wire. By means of scanning electron microscope (SEM) and X-ray phase analysis, the as-cast state is compared. The tensile strength and conductivity of rare earth aluminum electrotechnical circular bar with different Cu content in rolling and deformed aging state are studied. The effect of thermomechanical treatment on aluminum electrical circular rod is studied. The results show that the grain boundary of the sample is thinned after the deformation heat treatment. The microstructure is more uniform, and when Cu content is 0.2, the tensile strength of the sample is 179MPa, the conductivity is 60.78IACSs, and the comprehensive properties are better when the Cu content is 0.2and treated by solution treatment at 500 鈩，

本文编号：1496703