... can continuously work under 150°C. The "Size segregation phenomena"will happen while Phos/Copper brazing is heated slowly,so,quickly ... heat is needed.The brazing seam will turn to deep dark after brazed,and then recover to ... 0.05~0.13m/m gap is recommended,and it will get a satisfying effect. Ningbo Hemudu Brazing & Soldering Materials CO.,LTD ...