Note: Heating wire for hot heading

Objective:

To heat multiple steel wires to 1350ºF (732ºC)

End Product:

Steel wire

Equipment:

  • Ambrell 5.0 kW induction heating system, equipped with a remote workhead containing one 0.66µF capacitor
  • An induction heating coil designed and developed specifically for this application.

Materials:

Steel wire 0.185” (4.4mm) OD 

Temperature:

1350 ºF (732ºC)

Frequency:

141 kHz

Testing:

A two-turn channel coil is used to heat 12 wires at a time to reach the required 130 parts per minute. The wires are placed 0.5” (12.7mm) on center. The top 0.3” (7.6mm) of the wires are heated for 5 seconds to achieve the desired temperature. 

Benefits:

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

  • Elimination of springback effect

  • Extended die life

  • Better grain flow and microstructure

  • Even distribution of heating 

Heating wire for hot heading

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