The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Oct. 16, 1990

Filed:

Apr. 03, 1990
Applicant:
Inventors:

Ichiro Iwai, Tochigiken, JP;

Shigekazu Nagai, Osaka, JP;

Tatsuo Otsuka, Tochigiken, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23K / ; B23K / ; B23K / ;
U.S. Cl.
CPC ...
228183 ; 228223 ; 22826317 ;
Abstract

A method of forming a heat exchanger includes brazing heat exchanger components with a flux of non-corrosive fluoride complexes. The components comprise an aluminum alloy having improved brazing characteristics and containing 0.3 to 0.8% Mg, 4.0 to 8.0% Zn, one or more of 0.05 to 0.30% Zr, 0.05 to 0.30% Mn, 0.05 to 0.30% of Cr, 0.05 to 0.30% of Cu, aluminum and unavoidable impurities.


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