Patent ID: 8158273
Filing Date: 2012-04-17
Classification: B23K,B32B,C22C,F28F,Y10S,Y10T

Abstract:
1. An aluminium alloy brazing sheet comprising: a thin covering material layer, a core material layer, and an Al—Si alloy brazing material layer as an intermediate material interposed between said thin covering material and said core material, said thin covering material and said core material being comprised of aluminium alloys having a solidus temperature higher than a liquidus temperature of said brazing material so that the molten brazing material seeps onto a surface of said thin covering material when said brazing material is molten in a brazing operation, wherein said Al—Si alloy brazing material contains from 0.01 to 0.06 Mg, and wherein the aluminium alloy brazing sheet has a total Mg-content of less than 0.06%.