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采用自制水平单晶连铸设备制备铜单晶, 并对铜单晶的力学性能和电阻率进行了测试分析。结果表明,铜单晶与多晶铸棒比,抗拉强度降低20 .85 % ,屈服强度降低86 .54 % ,延伸率增加80 .24 % , 断面收缩率增加394 .50 % ; 与轧制棒比, 抗拉强度降低65 .97 % , 屈服强度降低98 .27 % , 延伸率增加270 .00 % , 断面收缩率增加4 .00 % ; 与多晶铸棒比电阻率降低15 .57 % , 与定向凝固铸棒比电阻率降低4 .24 % 。因此, 连铸铜单晶具有非常优异的塑性加工性能和低电阻率
Copper single crystals were prepared by self-made single crystal continuous casting equipment. The mechanical properties and resistivity of copper single crystal were tested and analyzed. The results show that the ratio of copper single crystal to polycrystalline cast rod decreases the tensile strength by 20%. 85%, yield strength decreased by 86. 54% increase in elongation of 80. 24%, cross-sectional shrinkage increased 394. 50%; Compared with rolled rods, the tensile strength is reduced by 65%. 97%, 98 lower yield strength. 27% increase in elongation of 270. 00%, cross section reduction rate increased by 4. 00%; and polycrystalline cast rod specific resistance decreased by 15. 57%, and the specific solidification cast rod specific resistance decreased 4. 24%. Therefore, continuous casting single crystal copper has a very good plastic processing performance and low resistivity