Note: Braze electrical contacts to brass and copper bus

Objective:

Heat silver contacts and brass/copper bus for brazing application 

End Product:

Electrical contacts

Equipment:

Ambrell 5 kW induction heating system, equipped with a remote workhead containing two 1.0 μF capacitors for a total of 0.5 μF An induction heating coil designed and developed specifically for this application.

Materials:

Silver contact .75 (19mm) diameter, brass and copper bus 2 inx 1 in (50.8 x 25.4mm), braze shims, white flux 

Temperature:

1300 °F (704 °C)

Frequency:

320 kHz

Testing:

A five-turn split helical coil is used to heat the assembly. The parts are placed 90° to the coil between the top turn and second turn with braze shims and flux. The parts reach 1300 °F (704 °C) in less than 40 seconds to braze the parts together.

Benefits:

  • Hands-free heating that involves no operator skill for manufacturing

  • Better joint quality

  • Faster heating cycles, more consistent results

  • Even distribution of heating 

Braze electrical contacts to brass and copper bus

Visit our Applications Lab to learn more about free applications testing.
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