Induction Susceptor Heating

How Induction Susceptor Heating Works

What is Susceptor Heating?

A susceptor is induction heated, conducting energy to the work material. Susceptors are made from silicon carbide, molybdenum, graphite, stainless steels and other conductive materials.

Induction generates an electromagnetic field in a work coil that induces currents in the conductive material of a workpiece placed within or near the coil. Friction from these currents elevates the temperature of the susceptor.

Induction susceptor heating Benefits 

  • Meets tight production tolerances with precise localized heat to small areas creating pinpoint accuracy

  • Increases production rates with faster heating cycles

  • Reduces defect rates with repeatable, reliable heat

  • Eliminates variability from operator-to-operator, shift-to-shift

  • Maintains metallurgical characteristics of the individual metals

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Free Induction susceptor heating Application Notes

Select from our collection of susceptor heating notes, taken from years supporting our customers. Read how we helped to solve their process heating challenges.

image: Heating a 4 Tubular Carbon Susceptor to 5400 °F (3000 °C)Heating a 4 Tubular Carbon Susceptor to 5400 °F (3000 °C)

A tubular carbon susceptor is held within an atmospherecontrolled quartz chamber. Induction is used to heat the susceptor

image: Soldering Co-axial Wire to a Metal FrameSoldering Co-axial Wire to a Metal Frame

Given the small size of the part and the assembly's geometry, a graphite cylinder was required as a susceptor.

image: Heating graphite susceptor for glass reflow for X-ray tubesHeating graphite susceptor for glass reflow for X-ray tubes

A two turn helical coil is used for heating. Six graphite susceptors are placed in the nitrogen atmosphere with glass discs and a stainless steel holder.

image: Heating aluminium susceptor for powder expansionHeating aluminium susceptor for powder expansion

Expand powder into solid form for use in crash helmets

image: Induction Melting Glass for Fiber DrawingInduction Melting Glass for Fiber Drawing

To heat a metal susceptor vessel to 2200°F within 25 minutes with induction for a fiberglass melting application

image: Brazing a heat-sensing probeBrazing a heat-sensing probe

A C-shaped steel susceptor is used to ensure even heating and for ease of loading and unloading the samples.

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