Brazing sheet product and method of its manufacture

Details Brazing sheet product and method of its manufacture Brazing sheet product and method of its manufacture

B - Operations, Transporting

23

K

B23K 35/24 (2006.01) B23K 35/02 (2006.01) B23K 35/28 (2006.01)

Patent

CA 2508030

Disclosed is a brazing sheet product including a core metal sheet (1), on at least one side of the core metal sheet (1) a clad layer (2) made of an aluminum brazing ally comprising silicon in an amount in the range of 4 to 14% by weight, and on at least one outersurface of the clad layer (2) a layer comprising iron or iron alloy (4), and on the outersurface of the layer comprising iron or iron alloy (4) a further layer (3) including a metal X, whereby X is selected from the group consisting of tin, zinc, bismuth, indium, antimony, strontium, titanium, maganese, copper, or combinations of two or more thereof. Also, disclosed is a method of manufacturing such a brazing product, and a brazed assembly including at least one component made of this brazing product.

L'invention concerne un produit de feuille de brasage comprenant une feuille métallique (1) centrale, sur au moins une face de laquelle (1) est formée une couche gaine (2) faite d'un alliage d'aluminium à braser qui contient du silicium à raison de 4 à 14 % en poids ; et, sur au moins une surface extérieure de la couche gaine (2), une couche contenant du fer ou un alliage de fer (4) ; et, sur la surface extérieure de la couche contenant du fer ou un alliage de fer (4), une autre couche (3) renfermant un métal X, X étant sélectionné dans le groupe constitué par l'étain, le zinc, le bismuth, l'indium, l'antimoine, le strontium, le titane, le manganèse, le cuivre ou des combinaisons de deux ou davantage de ces éléments. L'invention concerne aussi un procédé de fabrication du produit de brasage, et un ensemble brasé comprenant au moins un composant fait de ce produit de brasage.

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