BRAZING METHOD FOR DIFFERENT KINDS OF METAL

摘要

PROBLEM TO BE SOLVED: To prevent the reduction of the corrosion resistance and strength of a material caused by the melting of Al and Cu in the base metals by the mutual diffusion of Al and Cu in a brazing method for an Al material and a Cu material. SOLUTION: In the brazing of an Al material 1 consisting of Al or an alloy essentially consisting of Al and a Cu material 2 consisting of Cu or an alloy essentially consisting of Cu, an Ni member 3 consisting of Ni or an alloy essentially consisting of Ni has been clad on the surface on the side of the Al material 1 in the Cu material 2, and the Al material 1 and the Cu material 2 are brazed via the Ni member 3.