Refrigeration
Flame brazing aluminium to copper is common in the refrigeration industry where copper tubes are brazed to aluminium roll-bond panels or tubes. Brazing copper to aluminium is very similar to brazing aluminium to aluminium, but some precautions are necessary. In flame brazing the inter-diffusion of copper and aluminium can be halted rapidly by simply removing the heat source - in this case simply removing the flame is sufficient to allow the joint to cool quickly.
