ALUMINIUM ALLOY SHEET PRODUCT OR EXTRUDED PRODUCT FOR FLUXLESS BRAZING

摘要

The invention relates to aluminium alloy sheet product or extruded product for fluxless brazing, comprising of an aluminium alloy core having on at least one face an aluminium filler clad layer containing 4% to 15% of Si, the filler clad layer having an inner-surface and an outer-surface, the inner-surface is facing the aluminium alloy core and the outer-surface is facing a coating layer of 2 to 45 mg/sq.m of Bi or of a Bi-based alloy. Furthermore, the invention relates to a method of brazing a brazed assembly incorporating at least one member made from the brazing sheet material.