发明名称 |
Apparatus for producing a solid magnet roller using a movable mold |
摘要 |
An apparatus for manufacturing a magnet roller makes it possible to remarkably reduce defects on the surface or the inside of a magnet roller and also to control "warp" of the magnet roller sufficiently so that it does not adversely affect the functions of the magnet roller. A metal mold for magnetic field injection molding is composed of two fixed mold counterparts and a movable mold counterpart. The movable mold counterpart is moved to increase the volume of the cavity of the metal mold as a resin-bonded magnet material is injected into the mold.
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申请公布号 |
US6302669(B1) |
申请公布日期 |
2001.10.16 |
申请号 |
US19980179482 |
申请日期 |
1998.10.27 |
申请人 |
BRIDGESTONE CORPORATION |
发明人 |
NISHIZAWA TOSHIMICHI;NANBA TAKATOSHI;NAKADA KAZUHIRO |
分类号 |
B29C45/00;B29C45/56;B41J29/17;G03G15/08;G03G15/09;G03G21/00;(IPC1-7):B29C45/04 |
主分类号 |
B29C45/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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