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:
Jan. 25, 2011
Filed:
Jul. 26, 2005
Sylvestre Safrany, Voiron, FR;
Michel Mediouni, Moirans, FR;
Sylvain Henry, Saint Jean de Moirans, FR;
Sandrine Dulac, Grenoble, FR;
Sylvestre Safrany, Voiron, FR;
Michel Mediouni, Moirans, FR;
Sylvain Henry, Saint Jean de Moirans, FR;
Sandrine Dulac, Grenoble, FR;
Alcan Rhenalu, Paris, FR;
Abstract
A method of assembling aluminum alloy products, such as sheets, strips or tubes, by means of fluxless brazing, where the absence of flux is made possible by using a prior treatment resulting in formation of a conversion layer on the surface of the products. The treatment involves using a solution containing Kand Fions and at least one acid in a quantity such that the pH of the solution is less than 3. The inventive method enables effective flux was brazing in industrial conditions, such as a for the production of heat exchangers used in motor vehicles.