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Exothermic Welding System
Exothermic welding is also known as exothermic bonding, thermite welding, or thermit welding. Exothermic welding was first used to weld signal bonds to railroad tracks.

Exothermic welding is often used to join copper conductors. The welding process joins two electrical conductors by use of superheated copper alloy. An exothermic reaction requires no external heat or current source. The reaction occurs between a copper thermite composition that heats the copper. The chemical reaction is aluminothermic, occurring between aluminum powder and copper oxides. The reaction reaches very high temperatures. Reactant powders and a spark is all that is needed for a high energy reaction.
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