SG Power is the leading Exothermic Mould Manufacturer & Supplier In India. They are providing high quality Product in the Industry.
Exothermic welding, is a welding process for joining two electrical conductors, This process completed with exothermic reaction of a copper thermite composition to heat the copper, and requires no external source of heat or current. The chemical reaction that produces the heat is an aluminothermic reaction between aluminum powder and a copper oxide. The reaction reaches very high temperatures, depending on the metal oxide used. The reactants
are in the form of powders, with the reaction triggered using a spark from a flint lighter.
When welding copper conductors, the process employs a semi-permanent graphite crucible mould, in which the molten copper, produced by the reaction, flows through the mould and over and around the conductors to be welded, forming an electrically conductive weld between them. When the copper cools, the mould is either broken off or left in place.
Exothermic welding has higher mechanical strength than other forms of weld, and excellent corrosion resistance. It is also highly stable when subject to repeated short-circuit pulses, and does not suffer from increased electrical resistance over the lifetime of the installation.