Grounding iron and copper to exothermic welding
After all, the material in each manufacturer is somewhat different.General practiceConnect the two (bound with wire)Choose the mold that suits youPour powder into itignition
Earthing flat steel can be connected by welding or screw connection. When welding, the lap length is more than two times of the width of the flat steel, and at least three sides are welded and two long sides are included. When bolt meets the requirements of the reference bus connection process, 4 bolts are generally required.
These are two metals with different melting points, and some of them are troublesome. It is best to obtain these test data with the manufacturer when buying molds and aluminium powders.
