Note: Heating threaded area of fastener

Objective:

To heat the threaded area of fasteners to 375 °F (190.5 °C) at a rate of 8000 parts per hour 

End Product:

Non magnetic threaded pins

Equipment:

  • Ambrell 20 kW induction heating system, equipped with a remote workhead containing four 1.0 μF capacitors for a total of 1.0 μF
  • An induction heating coil designed and developed specifically for this application. 

Materials:

Non magnetic threaded pins in a 0.03 in (.76mm) thick steel plate, pins are 0.5 in œ (12.7mm) apart center to center 

Temperature:

375 °F (190.5 °C)

Frequency:

235 kHz

Testing:

A single-turn channel coil is used for this application. The threaded pins are placed in a stainless steel plate 0.5 in (12.7mm) apart center to center. Twenty pins are heated for 10 seconds to reach 375 °F (190.5 °C) at a rate of 8000 parts per hour.

Benefits:

  • Localized only to the threaded area

  • Increased production time

  • Flameless process

  • Even distribution of heating

Heating threaded area of fastener

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