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.
Patent No.:
Date of Patent:
Oct. 26, 1999
Filed:
Nov. 03, 1995
Edgar G Eichhorn, Livermore, CA (US);
David L Childree, Livermore, CA (US);
Kaiser Aluminum & Chemical Corporation, Pleasonton, CA (US);
Abstract
The present invention provides a method of joining aluminum parts by brazing, comprising the steps of (a) providing a composite sheet having an aluminum core alloy material and a filler alloy cladding, applied to the core alloy material, the cladding including about filler alloy for brazing, which includes about 4 to 18 wt. % silicon, about 0.001 to 0.4 wt. % magnesium, about 0.01 to 0.3 wt. % lithium, not more than about 2 wt. % zinc, not more than about 1.25 wt. % manganese, not more than about 0.30 wt. % iron, not more than about 0.10 wt. % copper, not more than 0.15 wt. % impurities, balance aluminum; (b) contacting an aluminum part with the filler alloy cladding; and (c) brazing the aluminum part and the composite sheet to produce a brazed assembly.