Induction Heating Steel Pipe To Remove plastic coating With RF Heating System
Objective Recover the polypropylene insulation from hollow steel tubes to allowĀ recycling of both the tubes and the insulation.
Material Hollow steel tubes 1/8ā (0.318 cm) to 5/8ā (1.59 cm) ID
Protective polypropylene coating
Temperature 150 ĀŗC (302Ā°F)
Frequency 185 kHz
Equipment ā¢ DW-UHF-4.5kW induction heating system, equipped with a remoteĀ workhead containing one 1.5 Ī¼F capacitor
ā¢ An induction heating coil designed and developed specifically forĀ this application.
Process/Narrative A six turn letterbox shaped coil is used to heat the inner steel pipes. TheĀ plastic coating is softened enough to be easily removed and recycled. TheĀ time required to melt the plastic from one meter of wire is approximately 45Ā seconds. This varies based on the diameter of the tube.
Results/Benefits Induction heating is the only feasible way to remove the plastic coating,
leaving it in an unpolluted form for recycling. It is a faster processingĀ method and also reduces in the companyās carbon footprint.
