Exothermic welding powder is a simple, high-efficiency, high-quality metal joining process that utilizes the chemical reaction heat of a metal compound as a heat source, through superheated (reduced) molten metal, directly or indirectly heated, in a special graphite mold A welded joint with a certain shape and size in accordance with engineering requirements is formed in the welding chamber. In praesenti, exhormode welding est plerumque reponi mechanica et corporis nexum methodis inter metalla in praeteritum. Multi internationalis signa suadeo usum exothermic welding processibus in grounding systems, ut IEEE, IEC, NEC, ASME, etc.