Induction Brazing a Joint on Pressurized Heater Connectors

A client came to THE LAB at Ambrell needing to braze a joint between a copper lug and nickel-plated copper pins on a pressurized heater connector. The target temperature was 1175-1375 ºF (635-746 ºC). THE LAB determined that an Ambrell EASYHEAT^TM 10 kW, 150-400 kHz induction heating power supply would meet the client's objectives.

More Brazing Application Notes

A two-turn helical coil was designed to heat the copper lugs and nickel-plated copper pins for one minute, which was the client's goal. A clamp was used in production to hold the copper lugs in place for brazing. Induction offered a number of benefits for this brazing application including:

• Minimal transfer of heat to the adjacent ceramic insulator
• Hands-free heating that involves minimal operator skill for manufacturing
  • Flameless processing
  • Can heat very small precise areas within production tolerances
  • Even distribution of heating

If you have an application you'd like assessed, contact THE LAB to take advantage of complimentary induction heating application testing from our expert team.