Note: Heating steel; polypropylene insertion (pallet manufacturing)

Objective:

Inserting brass threaded inserts into 7 locations on a plastic thermostat housing

End Product:

Thermostat

Equipment:

Ambrell EASYHEAT 3.5 kW, 150-400 kHz induction heating system with a workhead and coil specifically designed for this application

Materials:

Brass inserts ¼” (6.3mm) diameter, plastic thermostat housing

Temperature:

700 ºF (371 ºC)

Frequency:

Testing:

This application has three different coils for varying hole patterns. A three-turn oblong coil is used to heat 2 brass inserts in close proximity. The inserts are heated in the coil above the insertion hole for 10 seconds to reach 700 ºF (371 ºC). The inserts are then pushed into the holes for placement. The second hole pattern requires a two place, three turn coil and the third pattern requires a three place, three turn coil. All three applications reach 700 ºF (371 ºC) in 10 seconds and can be heated using three 3.5 kW units. 

Benefits:

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

  • Simplified fixturing

  • Faster production time

  • Even distribution of heating

Heating steel; polypropylene insertion (pallet manufacturing)

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