Brazing Joining Copper Connectors With Induction
Objective: Brazing a joint between a copper lug and nickel plated copperĀ pins on a pressurized heater connector.
Material: 1.5ā (38.1mm) dia heater connector in a ceramic insulator withĀ L shaped copper lugs and nickel plated copper pins, silverĀ solder and braze
Temperature 1175-1375 ĀŗF (635-746 ĀŗC)
Frequency 270 kHz
Equipment ā¢ DW-UHF-10 kW induction heating system, equipped with aĀ remote workhead containing two 1.5Ī¼F capacitors for aĀ total of 0.75Ī¼F
ā¢ An induction heating coil designed and developedĀ specifically for this application.
Process A two turn helical coil is used to heat the copper lugs andĀ nickel plated copper pins for 1 minute. A clamp is used inĀ production to hold the copper lugs in place for brazing.
Results/Benefits Induction heating provides:
ā¢ Minimal transfer of heat to adjacent ceramic insulator.
ā¢ Hands-free heating that involves minimal operator skill forĀ manufacturing.
ā¢ Flameless processing.
ā¢ Heat very small precise areas within production tolerances.
ā¢ Even distribution of heating.