Methods of Brazing

Torch Brazing. This method requires very little equipment and is more frequently practiced. It involves the use of a type of gas blowpipe fitted with the combination of air and gas regulators by means of which both the size and nature of the flame can be adjusted to suit the work. The gas combinations used and the temperatures obtained from them are given below: Torch Brazing (a) Compressed air-coal gas : 10000C to 11510C (b) Coal gas-oxygen : 21000C to 22000C (c) Hydrogen-oxygen : 24000C (d) Oxy-acetylene : 32000C In general,…

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