Extrudable corrosion resistant aluminum alloy

Details Extrudable corrosion resistant aluminum alloy Extrudable corrosion resistant aluminum alloy

1993-12-17

1995-12-26

Yee, Deborah

Alloys or metallic compositions

Aluminum base

Titanium, zirconium, hafnium, vanadium, niobium, or tantalum...

C22C 2100

Patent

active

054785251

ABSTRACT:
An extrudable brazeable corrosion resistant aluminum alloy, consisting essentially of, by weight percent, 0.1-0.2 titanium, 0.6-1.2 manganese, up to 0.1 silicon, up to 0.2 iron, and other impurities up to 0.15, with each such other impurity no greater than 0.03, and the remainder aluminum.
A method of fabricating a heat exchange tube array, by (i) extruding aluminum alloy tubing of the above composition to a uniform wall thickness of about 0.4mm; (ii) bending and/or arranging the tubes to form a tube array for conducting a fluid medium therethrough; (iii) interposing an aluminum-based heat exchange means between and in contact with the tubes of the array to provide for heat transfer; (iv) brazing the heat exchange means to the tube array by heating to the temperature range of 595.degree. C. whereby the tube array will not be adversely affected metallurgically by the brazing operation.

REFERENCES:
patent: 4499050 (1985-02-01), Tong
patent: 5286316 (1994-02-01), Wade

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