Page 218 - Mechanical Engineer's Data Handbook

206 MECHANICAL ENGINEER'S DATA HANDBOOK

5.10.2 Soldered joints

I
Single lap joint Gas-alr brazing torch
v

Onset lap joint
M 5.10.4 Brazed joints
lock
Double
joint
In the figure, several types of brazed joint are shown;
the arrows indicate the direction of the load.

son soldering

5.10.3 Brazing
Above about 800 "C the process is called 'brazing' (or
hard soldering). Brazing rod (50Y0 copper and 50%
zinc) is used for general work, with a flux consisting of
borax mixed to a paste with water. A torch supplied
with mains gas and compressed air is used. Taps
control the flow and mixture. For large-scale produc-
tion work, induction and furnace heating are used.

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