There is the plastic bonded magnets p-m rotor of resilient coating

There is the plastic bonded magnets p-m rotor of resilient coating

  • CN 102,195,380 B
  • Filed: 06/30/2011
  • Issued: 09/09/2015
  • Est. Priority Date: 06/30/2011
  • Status: Active Grant
First Claim
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1. there is the plastic bonded magnets p-m rotor of resilient coating, comprise metal shaft and bonded permanent magnet, wherein, between metal shaft and bonded permanent magnet, be provided with resilient coating;

  • Bonded permanent magnet selects nylon 12 to bond strontium ferrite, and resilient coating selects nylon 12;

    Resilient coating cross section is circular;

    Its preparation method is;

    Metal shaft is placed in mould, mold temperature 80 DEG C, by nylon 12 at 80 DEG C drying after at least 4 hours through injection molding machine injection moulding resilient coating, become semi-finished product, injection temperature 240 DEG C, injection rate 80mm/s, cool die sinking after 10 seconds and semi-finished product are taken out;

    Above-mentioned semi-finished product are placed in p-m rotor mould, mold temperature 80 DEG C, above-mentioned nylon 12 is bondd strontium ferrite at 80 DEG C after at least dry 4 hours through injection molding machine injection binding magnet part, injection temperature 280 DEG C, injection rate 60mm/s, cool die sinking after 10 seconds, take out goods, complete production process.

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