Idea full of holes holds water on heat
25th July 1981, Page 9
25th July 1981
Page 9
Page 9, 25th July 1981
— Idea full of holes holds water on heat
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A TECHNIQUE which is claimed to improve production of heat exchangers and to reduce costs has been developed by Flowdrilling (UK) Ltd.
The process is based on the use of bushes of flowdrilled holes and uses an internal, rather than an external, heat
source.
Flowdrilling claims that by applying the heat internally the solder is drawn fully into the joint, so improving reliability and saving on solder.
The bushes in the header have a top collar which acts as a natural placement for the solder rings and a depth stop for the location of the tube.
There is no internal crevice in the joint, and cooling fins may be placed much closer to the manifold surface as external access with a heating torch is no longer required.