随着我国对外政策的开放,近几年进口了一批日本松下公司的NEW K系列气体保护焊机。这种焊机为可控硅型,体积小、重量轻、送丝机构也较为可靠。通过两年来的使用与实测,发现这种焊机存在三个较严重的问题。即飞溅大,成型差(富Ar混合气体保护时);焊丝端头小球大,引弧性能差;网路电压波动补偿能力差。经研究改进后,上述问题得到了满意解决。 1.减少飞溅及焊缝成型的改善 With the opening up of China’s foreign policy, in recent years, a batch of NEW K series gas shielded welding machines from Japan Matsushita Company have been imported. This type of welding machine is SCR, small size, light weight, wire feeding mechanism is also more reliable. After two years of use and measurement, it was found that there are three more serious problems with this type of welder. That splash big, poor shape (rich Ar mixed gas protection); wire tip big ball, arc poor performance; poor network voltage fluctuation compensation. After research and improvement, the above problems have been satisfactorily solved. 1. To reduce the splash and improve the weld molding