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:
Nov. 13, 2007
Filed:
Jul. 18, 2003
Jacques Hubert Olga Joseph Wijenberg, Amsterdam, NL;
Adrianus Jacobus Witterbrood, Velserbroek, NL;
Joop Nicolaas Mooij, Castricum, NL;
Jacques Hubert Olga Joseph Wijenberg, Amsterdam, NL;
Adrianus Jacobus Witterbrood, Velserbroek, NL;
Joop Nicolaas Mooij, Castricum, NL;
Aleris Aluminum Koblenz GmbH, Koblenz, DE;
Abstract
The invention relates to a brazing sheet product comprising a core sheet, a clad layer on said core sheet made of an aluminum alloy containing silicon in an amount in the range of 4 to 14% by weight, an optional layer comprising nickel on the outersurface of said clad layer, and a diffusion layer comprising nickel-tin alloy on the outer surface of said nickel layer. The invention further relates to a method of manufacturing such a brazing product comprising the process step of plating different metal layers and subjecting the plated brazing product to an annealing treatment by holding the plated brazing product at a temperature in the range of 100 to 500° C. for a period of 1 sec. to 300 minutes to form a diffusion layer comprising nickel-tin alloy on the outer surface of said layer comprising nickel.