由我校焊接教研室负责,长春电器设备厂参加研制的BXK-20型可控硅逆变式中频弧焊电源,经过三年的努力,达到了计划任务书规定的指标。长春市科委受吉林省科委委托,于今年初举行了鉴定会。来自全国33个单位的56名代表参加了会议。与会代表对技术文件、图纸进行了认真审查,对两台样机进行了严格测试,并进行了认 By our school welding department, Changchun Electric Equipment Factory to participate in the development of BXK-20 SCR inverter IF welding power source, after three years of hard work, reached the planning task book targets. Changchun Science and Technology Commission commissioned by the Jilin Provincial Science and Technology Commission, held early this year appraisal. Fifty-six representatives from 33 units nationwide attended the meeting. The delegates carefully reviewed technical documents and drawings, conducted rigorous tests on the two prototypes, and conducted a