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Resin-bonding method

  • US 5,123,989 A
  • Filed: 06/11/1990
  • Issued: 06/23/1992
  • Est. Priority Date: 06/14/1989
  • Status: Expired due to Fees
First Claim
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1. A method for bonding a resin part, said method comprising the steps of:

  • disposing as a heating-medium at said resin part a magnetic complex having a coercive force (Hc) of not less than 50 Oe, a maximum flux density (Bm) of not lower than 1,000 G and a residual flux density/coercive force (Br/Hc) ratio of not less than 1.3 and being composed of a resin and 0.1 to 90% by weight of magnetic particles which have a coercive force (Hc) of not less than 50 Oe and are selected from the group consisting of iron oxide particles, ferrite particles and a mixture thereof; and

    applying an alternating magnetic field to said heating-medium with an intensity of 2 to 15 times the coercive force (Hc) of said heating-medium, by using a magnetic field generating means comprising a high-frequency power source and a heating-unit comprising an electromagnetic core and an exciting coil, in a frequency of 1 to 400 KHz, thereby causing said heating-medium to generate heat for fuse-bonding said resin part.

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