Induction Soldering Copper Wires With IGBT High Frequency Heating Units
Objective Soldering two copper wires to pre-installed turrets on a copper buss bar
Material Solder dipped copper/nickel buss bar, 2 tinned stranded copper wires, brazing stick
Temperature 446 ºF (230 ºC)
Frequency 230 kHz
Equipment • DW-UHF-6kW induction heating system, equipped with a remote workhead containing one 1.2μF capacitor.
• An induction heating coil designed and developed specifically for this application.
Process A four turn split helical coil is used to solder the buss bar assembly. The 2 copper wires are applied to the turrets and power is applied for 30 seconds. The brazing stick is fed by hand to the heated parts and the braze flows evenly, creating the joint.
Results/Benefits Induction heating provides:
• Reduced solder time
• Even distribution of heating
• Joint to joint consistency
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