With steel wire welding, after welding, gently Wei, solder joint fractureReply immediately when you knowSpecific how to heat preservation, can say detailed point?
Do you weld low carbon steel?And the principle of equal strength used in welding rod and weldment, or the principle of equal composition?Try the ingredients principle!After the welding is finished, after annealing, you try
Preheat before welding and cool down after welding
