Brazing method for heat exchanger tube and fins of aluminum heat exchanger

Abstract

PURPOSE: To improve brazeability of straight line parts and corrugated fins of a heat exchanger tube without increasing the quantity of flux used. CONSTITUTION: The straight line parts 3 and 3 and the corrugated fins 2 and 2 are combined alternately. The flux is applied to the upper edges of the respective straight line parts 3 and 3 from nozzle 11 opening with the same pitch as the straight line parts 3 and 3 with polybutene as a dispersant. While this state being left at it is, the heat exchange tube 1 and the corrugated fins 2 and 2 are heated to sublimate the polybutene and the flux is concentrated on contact parts between the respective straight line parts 3 and 3 and the corrugated fins 2 and 2. COPYRIGHT: (C)1992,JPO&Japio

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Cited By (3)

    Publication numberPublication dateAssigneeTitle
    US-6199750-B1March 13, 2001Calsonic Kansei CorporationMethod of manufacturing core of heat exchanger
    US-6325276-B1December 04, 2001Calsonic Kansei CorporationMethod and apparatus for applying flux for use in brazing aluminum material
    US-6783056-B2August 31, 2004Calsonic Kansei CorporationMethod and apparatus for applying flux for use in brazing aluminum material