Title:
成形装置、金型及びマグネットロールの製造方法
Document Type and Number:
Japanese Patent JP6390719
Kind Code:
B2
Abstract:
A molding device for molding a magnet roll with a profiled cross-section comprises a heating and kneading unit that supplies, to a cylindrical metal mold, a kneaded material obtained by heating and kneading a raw mixture including ferromagnetic particles and thermoplastic resin, an extrusion molding unit that molds the supplied kneaded material by the metal mold, and a magnetic field generating unit disposed at an end portion of the metal mold in a lengthwise direction that generates a magnetic field inside the metal mold, and the metal mold has a profiled C-shaped cross-section at an inlet for the kneaded material and a profiled cross-section at an outlet for the kneaded material more complex than the inlet.
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Inventors:
Taniguchi
Oshige Masahiko
Oshige Masahiko
Application Number:
JP2016571958A
Publication Date:
September 26, 2018
Filing Date:
January 19, 2016
Export Citation:
Assignee:
Hitachi Metals Co., Ltd.
International Classes:
H01F7/02; G03G15/00; G03G15/09; H01F13/00
Domestic Patent References:
JP9120927A | ||||
JP2003100511A | ||||
JP11162731A | ||||
JP9275028A | ||||
JP9148166A | ||||
JP2013021191A |
Foreign References:
WO1998003981A1 | ||||
WO2012105226A1 | ||||
US5384957 |
Attorney, Agent or Firm:
Hideno Kono
Nobuo Kono
Nobuo Kono