1995-02-01

Magnetic Induction Heating for Automotive Seat Trim Bonding 950148

Magnetic induction heating can be used to bond automotive seat trim covers to foam pads. A thermoplastic film doped with ferromagnetic particles is placed between the trim cover and foam pad. An induction coil can be designed for specific seat contours in a tool press. When current is applied to the induction coil located in the tool, magnetic flux is induced. Eddy currents generated in the ferromagnetic particles activate the hot melt film. Heat is delivered directly to the bondline. The process does not damage heat sensitive trim materials (i.e.. leather, vinyl) as the tool surface remains cool. Process reversibility permits design for recyclability and a reduction in production scrap rates.

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