Method of soldering tube to plate

Details Method of soldering tube to plate Method of soldering tube to plate

1980-02-01

1981-06-09

Richter, Sheldon J.

Metal fusion bonding

Process

Plural joints

291574, 165 79, 165178, 228245, 285 31, 285192, 285287, F28F 916

Patent

active

042720060

ABSTRACT:
A method of making and the resulting heat exchanger in which there is provided a header plate having a tube receiving opening closely embracing the tube in the opening with a sheet of solder on at least one of the tube and plate adjacent to the opening together with a retainer wettable by the molten solder attached to the tube and plate and bearing against the solder to retain it in position. The assembly of tube, plate, retainer and solder is heated to a melting temperature for the solder with the result that the molten solder flows over the wettable retainer and into the space between the plate and tube by capillary attraction after which the solder is cooled to a solidifying temperature to form a solder joint uniting the tube and header.

REFERENCES:
patent: 235834 (1880-12-01), White
patent: 2073778 (1937-03-01), Boerger
patent: 2229207 (1941-01-01), Hansen
patent: 2752129 (1956-06-01), Modine
patent: 2813502 (1957-11-01), Drom
patent: 2961062 (1960-11-01), Hunter et al.
patent: 3245465 (1966-04-01), Young
patent: 3589440 (1971-06-01), Friedrich
patent: 3734175 (1973-05-01), Christensen
patent: 4023611 (1977-05-01), Clemens et al.

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