焊道处理机原理上就是局部电解。http://zhidao.baidu.com/link?url=co32mtDXZaaKs2KQHfIBdvMv197wZaMz5-ckFnAJmpvKawb-8SDwg_gtJbzclBGCMAYybY-lBUkj-Si4XEzCqy63fXEPv-r9Jhvx54rIfEO
