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What is themite welding |
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Answer» When iron oxide reacts with the aluminium lots of energy with molten iron is formed which is used in welding process. This process is called thermite welding.The reaction of iron oxide with aluminium is used to join railing of railway tracks or cracked machine parts. This reaction is known as the thermite reaction. When iron is react with aluminium, then iron,aluminium oxide and heat form.And this iron is used to join the broken railway track and broken machinery. A mixture of ferric oxide ( Fe2O3) and aluminum powder (Al) is called thermite . In thermite welding iron (Fe) is obtained and this iron is used for welding the railway tracks.. the reaction is as follows .............. ... 2Al + Fe2O3 -----> Al2O3 + 2Fe + heat.. this reaction takes place when magnesium ribbon is burnt. |
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