Note: Heating steel for insertion into polypropylene
Objective:
Heating magnetic steel to 300 °F (149 °C) for insertion into a polypropylene board
End Product:
Pallets
Equipment:
Ambrell EKOHEAT 40 kW, 50-150 kHz induction heating system with a workhead and coil specifically designed for this application
Materials:
Hollow steel beam with two rails 3 in (76.2 mm) apart with steel barbs 0.25 in (6.35 mm) long and 0.04 in (1.02 mm) thick
polypropylene sandwich-ribbed reinforced board .50â (12.7 mm) thick
Temperature:
300 °F (149 °C)
Frequency:
108 kHz
Testing:
A single turn channel coil was used to heat the steel beam. The rail reached 300 °F (149 °C) in 20 seconds. The polypropylene board was pushed down on the steel beam to join the metal-to-plastic bond.
Benefits:
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Hands-free heating that involves no operator skill for manufacturing
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Faster production time
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Even distribution of heating
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âÂÂGreenerâ manufacturing of pallets using reusable, recyclable materials

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