Tube method of making a composite heat exchanger tube

Details Tube method of making a composite heat exchanger tube Tube method of making a composite heat exchanger tube

1991-10-04

1992-04-21

Cuda, Irene

Metal working

Method of mechanical manufacture

Heat exchanger or boiler making

29890049, 29890053, 228183, B21D 5302

Patent

active

051055406

ABSTRACT:
A method for fabricating a composite tube for a heat exchanger includes the steps of feeding tube stock and liner stock into a tube mill, superimposing liner stock upon the tube stock and simultaneously forming the tube stock into an outer tube while forming the liner stock into a lining within the tube. The tube is then welded or brazed longitudinally and the liner is brazed to the outer tube.

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patent: 3906605 (1975-09-01), McLain
patent: 4470452 (1984-09-01), Rhodes
patent: 4878925 (1989-11-01), Kojima

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