Thermite welding process for joining railway tracks

Thermite reaction is the reaction used to join the railway tracks. It is an exothermic redox reaction in which more reactive aluminium meta**l replaces iron from its oxide to produce molten iron which is used for joining the railway tracks.

Welding work in railway is done by welder who is an expert technician. Time management has to be given a lot of attention in this work so that welding is perfect. All this work is done by blocking the railway line or it is done outside the railway line.

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