To provide an injection molding device and a forming method of a composite for resin bonding-type magnet, with which thermosetting resin can be injected while a leakage phenomenon that thermosetting resin leaks from a nozzle is controlled at the time of measuring the composite for resin bonding-type magnet and it can continuously and stably be manufactured.
The injection molding device of the composite for resin bonding-type magnet is provided with a means supplying the composite for resin bonding-type magnet, where thermosetting resin is set to be a binder component of magnetic powder, into a cylinder, the cylinder receiving the composite for resin bonding-type magnet, which is sent, and melting it, a screw with check valve, which sends the received composite for resin bonding-type magnet in front of the cylinder and measures it and the nozzle supplying the measured composite for resin bonding-type magnet to a confronted mold and filling a cavity with it. The device is also provided with a means with which the screw with check valve performs sucking back before the composite for resin bonding-type magnet is measured.
COPYRIGHT: (C)2008,JPO&INPIT
| JP4763290 | RTB rare earth permanent magnet |
| WO/2012/099188 | R-T-B SINTERED MAGNET |
| JPS62177101 | PRODUCTION OF PERMANENT MAGNET MATERIAL |
OMORI KENJI
SATO TAKASHI
Next Patent: RESIN-SEALED SEMICONDUCTOR DEVICE