Brazing copper tubing

Brazing for copper pipe involves using high heat from a torch to melt a brazing rod (a filler metal) into a joint, creating a strong, gas-tight seal, most commonly seen in HVAC systems for refrigeration lines. The process requires cleaning the copper pipe and fitting surfaces, heating the joint area (not the rod itself) with a torch until the base metal's heat melts the filler metal, and then allowing the joint to cool naturally. Copper-phosphorus alloys are often used as they are self-fluxing,

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