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Pure copper inResistance brazingIt is easy to generate copper oxide and cuprous oxide, but it is not difficult to remove them with flux, so the weldability is good.
Operational points 1. Remove oxides, oil stains and other debris on the surface of the workpiece before welding. 2. Soak in sulfuric acid cold water with a concentration of 5%-15% 3. The solder material can be silver-based solder material or copper-phosphorus solder material. 4. It is not advisable to use the maximum welding current for brazing. 5. Adjust the welding current first to a small value and then to a large value until satisfied. 6. When the temperature reaches the temperature, step on the foot switch intermittently to control the temperature. 7. Quench the water after welding to allow the base metal and solder to crystallize quickly.
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