Study on solder bead control after resistance welding of dip-tin conductor
In order to solve the problem of high rate of solder bead spatter caused by resistance welding of dip-tin conductor and coil in miniature circuit breaker,this paper mainly studies from three aspects:auxiliary equipment,electrode material and welding process parameters.The results show that with the addition of air blowing apparatus,adopting Cu-A1203 electrode,make process parameters of the slow rising time is set at 120 ms,and the holding time is set at 200 ms,the bad spray rate of tin beads decreases from 53%to 1%.