Method of manufacturing flat tubes for heat exchanger

Details Method of manufacturing flat tubes for heat exchanger Method of manufacturing flat tubes for heat exchanger

1995-05-09

2000-09-19

Cuda, Irene

Metal working

Method of mechanical manufacture

Heat exchanger or boiler making

29890054, B23P 1526

Patent

active

061193410

ABSTRACT:
A method of manufacturing flat tubes by forming a flat tube body from a single plate material which is continuously drawn from a drum by either folding it into two or placing two plate materials one upon the other, and cutting the flat tube body in a predetermined length. The method is characterized by the steps of placing the plate material with its inner surface facing downwardly at any selected stage before completion of folding the plate into two, or before completion of placing two plates one upon the other; fluxing the inner surface of the plate material with a liquid flux material, and drying the applied flux material.

REFERENCES:
patent: 4688311 (1987-08-01), Saperstein et al.
patent: 4852233 (1989-08-01), Kawase
patent: 4945635 (1990-08-01), Nobusue et al.
patent: 5102032 (1992-04-01), Cottone et al.
patent: 5322209 (1994-06-01), Barten et al.

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