Idemitsu Kosan Company, Limited

Central Japan Railway Company

Mitsubishi Electric Corporation

Mitsubishi Denki Kabushiki Kaisha

Hiromori Ishihara

Yoshifumi Itabashi

Akihiro Fujita

Yoshihiro Jizo

Tsuyoshi Fujimoto

Tomomi Hasegawa

Nobuhiko Mizuno

Futoshi Yonekawa

Toru Iga

Haruo Kobayashi

Keizo Yoshikawa

Keizou Yoshikawa

Hiroaki Ota

Yaichi Fuwa

A process for producing a molding having an embedded member which comprises: a first step in which a mold () having pins () which extend from the outside to the inside of the mold and can be withdrawn outward is heated to a given temperature; a second step in which a member () to be embedded is held in a given position within the mold by supporting the member, including an upper part thereof, with the pins (); a third step in which a thermoplastic resin is packed through a gate () first into that part of the cavity of the mold () which is located under the member to be embedded to thereby cause the thermoplastic resin to press the member against the pin () located in an upper part of the mold; a fourth step in which the thermoplastic resin is packed into the remaining part of the cavity of the mold (); and a fifth step in which the pins () are withdrawn successively from the lower side of the mold before cooling to a temperature at which the thermoplastic resin solidifies and loses its flowability.

Process for producing molded object with embedded member

A ground coil device for a magnetic levitation railway that can be manufactured with a high productivity and exhibit less fluctuation in strength, reduced weight, and good recyclability, and a process for manufacturing the device. The ground coil device includes a coil conductor covered with a thermoplastic resin molding material containing 100 parts by mass of a thermoplastic resin, from 20 to 200 parts by mass of an inorganic filler, and from 0 to 25 parts by mass of an elastomer. A process for producing the ground coil device for magnetic levitation railway includes filling the thermoplastic resin molding material into a cavity of a metal mold into which the coil conductor is previously inserted, by an injection molding method, to obtain an integrally molded product.

Ground coil device for magnetic levitation railway and method for manufacture thereof

In a magnetic levitation transportation system ground coil unit in which inside an annular coil conductor that is annularly wound, a mounting bushincluding such a mounting holeas to be parallel to a central axis of the coil conductor is disposed, and the coil conductor and the bushare integrally molded using a thermoplastic resin to form a casingof the coil conductor, thickness of the thermoplastic resin of a connection part that provides a connection between the bushand the coil conductor is made smaller than thickness of the coil conductor, and a plurality of reinforcing ribstothat are formed using the thermoplastic resin are provided radially from the bushside toward the coil conductor side to be integral with the connection part and the casing

Magnetic levitation transportation system ground coil unit and manufacturing method thereof

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Aichi, Japan

Hiromori Ishihara