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Handheld brazing machine and desktop brazing machine diagram
Brass is an alloy of copper and zinc.Resistance brazingZinc oxide and cuprous oxide are easily generated on the surface at high temperatures. Although zinc oxide is more firmly bonded, it is easier to remove with flux, so it does not affect the weldability.
Operational points 1. Like pure copper, oxides, oil stains and other debris on the surface of the workpiece must be removed before brazing. 2. Soak in sulfuric acid cold water with a concentration of 5%-15%. 3. The solder material can be silver-based solder or copper-phosphorus solder. 4. The effect of using FB101 or FB102 flux is better 5. It is advisable to use less than 80% of the welding current for brazing. 6. Test welding with a small current first, then slowly increase the welding current until the speed is satisfactory. 7. When the temperature reaches the temperature, step on the foot switch intermittently to control the temperature. 8. Quench the water after welding to allow the base metal and solder to crystallize quickly.
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