我厂生产的大电流隔离开关,有一种尺寸较大的管型零件,其材料为紫铜 M_1(见图1)。由于没有规格合适的紫铜管料,因此,考虑采用紫铜板剪料、滚园、校正、再焊接成园简,然后再切削加工。由于零件尺寸比较大,焊接时散热面积也很大,加上铜的导热速度很快,因此,焊接加工比较困难。但是,我们遵照伟大领袖毛主席“抓革命,促生产,促工作,促战备”的伟大教导,奋发图强,自力更生,经过多次摸索试验,不断的总结经验,终于用碳弧焊顺利的 I plant the production of high-current isolating switch, there is a larger tube parts, the material for the copper M_1 (see Figure 1). Because there is no suitable standard copper tube material, therefore, consider the use of copper cutting board, roll garden, correction, and then welded into the park Jane, and then cutting. Due to the larger size of the parts, welding heat dissipation area is also great, coupled with the rapid thermal conductivity of copper, so welding is more difficult. However, following the great teachings of the great leader Chairman Mao, “Grasping the Revolution, Propelling Production, Promoting Work and Promoting Preparatory Operation,” we worked hard to make our own efforts and made our own efforts. After repeated experiments and experiments, we finally succeeded in using carbon arc welding