Where is thermite process used and why?
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Where is thermite process used and why?
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Answer:
In engineering, the thermite process isused to weld railway tracks together. A mixture of aluminium grit and iron(II, III) oxide is added to the apparatus and lit with an ignition rod. Liquid iron and aluminium oxide form in a very exothermic reaction.
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Question:-
Where is thermite process used and why?
AnSWer:-
Thermite process is mainly used in broken rails, broken machine parts etc can welded without removing them from their original sites.
❐ When the mixture is ignited, ferric oxide is reduced to metallic iron by aluminium. Because of evolution is large amount of heat, temperature rises to ~ 25000°c.
The molten iron thus produced is allowed to fall on the red hot broken ends of iron pieces and joins them together.