1.      Introduction

Phos-copper brazing alloy is base on the raw material with

the binary alloy of copper-phosphorus. It has good fluidity,

 low cost, perfect processing property. No need to add flux

when brazing copper and silver, and the joint has good strength.

Note：1, P: phosphorus; Sn: Stannum; Cu: copper;

      2, CWA:Chinawelding association; AWS:Americawelding Society;

 DVS: German Welding Society

       3, REM: Remain;