(i) Soldering: The process of soldering in electrical work is generally used to make joints in conductors and to terminate a conductor for a mechanical connection to an appropriate terminal in electrical equipment. This method involves the use of molten metal introduced to the two surfaces to be joined. The metal used for joining copper surface is solder which is an alloy of tin lead. The disadvantage of soldering is that the process/method makes the joint a non-separable contact.
OR A method of joining cables using solder flux and soldering iron.
(ii) Soldering bit: The function of soldering bit is to store and carry heat source to the work to store motten solder, deliver the molten solder and withdraw surplus solder. The material for the bit is most often copper on which molten solder clings readily without difficulty. The heating media for a soldering bit are considered as coal gas paraffin or petrol flames and electric heating or this is the tool used during soldering, the bit should be heated until a green flame appears and must always be kept clean.
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