DEVELOPMENT OF LEVITATION COIL BY REACTION INJECTION MOLDING METHOD

The ground coils to be used along the entire length of a magnetically levitated transportation system need to withstand long term outdoor service and be provided in extremely large quantities. It is for these reasons that the coils need to be durable and inexpensive. Dicyclopentadiene, a major component of low viscous liquid in reaction injection molding (RIM), is injected into the mold. It reacts with catalyst and cures in a short time to produce a substance featuring superior quality not obtainable by the conventional injection molding. The molding process may be undertaken at normal temperature and pressure, the molding equipment is inexpensive, and the insulation scheme of the wound coils can be simplified. There are several reasons that the ground coils are suitable for mass production. This paper discusses the application of RIM technology through trial manufacture of practical ground coils incorporated with several improvements. The economic effect was investigated as well.

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  • Corporate Authors:

    Railway Technical Research Institute

    2-8-38, Hikari-cho, Kokubunji-shi
    Tokyo 185,   Japan 
  • Authors:
    • Suzuki, M
    • Fujimoto, T
    • Suwa, H
  • Publication Date: 2000-6

Language

  • English

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Filing Info

  • Accession Number: 00797522
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Aug 23 2000 12:00AM