Note: Brazing carbide insert to pipe gripper chuck

Objective:

To braze carbide inserts into steel blocks in the assembly of pipe gripper chuck 

End Product:

Pipe gripper chuck

Equipment:

  • Ambrell EASYHEAT 4.2 kW 400kHz induction heating system, equipped with a remote workhead containing one 1.0μF capacitor
  • An induction heating coil designed and developed specifically for this application. 

Materials:

Steel blocks,1” (25.0mm) wide X 3.5” (87mm) long and 2” (50mm) tall, toothed carbide inserts 

Temperature:

1450 ºF (780 ºC)

Frequency:

192 kHz

Testing:

Blocks are fluxed and braze shims are sandwiched between the toothed carbide inserts and wells in the steel. A two-turn helical coil is used to heat the assembled part. A two-step heat profile flows the braze within 150 seconds per part Induction heating is proposed to replace a hand/flame process, delivering significant reduction in per-part cycles. 

Benefits:

Direct heating of the part, saving energy
Flameless process; doesn’t ‘blow’ the braze
Precise control of heat 
Process precision and repeatability for consistent results
Easy integrated into automated process
Even distribution of heating
Reduced flame hazard 
Brazing carbide insert to pipe gripper chuck

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