B - Operations – Transporting – 21 – D
Patent
B - Operations, Transporting
21
D
B21D 53/08 (2006.01) B21C 23/10 (2006.01) B23K 1/00 (2006.01) B23P 15/26 (2006.01) C22C 21/00 (2006.01) F28D 1/047 (2006.01) F28D 1/053 (2006.01) F28F 1/12 (2006.01) F28F 21/08 (2006.01)
Patent
CA 2137099
An extrudable brazeable corrosion resistant aluminum alloy, consisting essentially of, by weight percent, .1-.2 titanium, .6-1.2 manganese, up to .1 silicon, up to .2 iron, and other impurities up to .15, with each such other impurity no greater than .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 .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°C whereby the tube array will not be adversely affected metallurgically by the brazing operation.
Smith Warren Albert
Study Alan Lee
Ford Motor Company Of Canada Limited
Sim & Mcburney
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