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Title:
MOLDING DEVICE, DIE, METHOD FOR MANUFACTURING MAGNET ROLL AND METHOD FOR MAGNETIZING MAGNET ROLL
Document Type and Number:
WIPO Patent Application WO/2016/121571
Kind Code:
A1
Abstract:
Provided are a molding device and the like capable of suppressing curvature of an irregularly-shaped magnet roll and level differences on the surface thereof when the magnet roll is extrusion molded. A molding device for molding a magnet roll having an irregularly-shaped cross section is provided with: a heating and kneading unit for supply to a cylindrical die; an extrusion molding unit that molds a supplied kneaded material by means of the die; and a magnetic field generation unit that is disposed at an end in the longitudinal direction of the die and generates a magnetic field within the die. The die is configured such that an inlet for the kneaded material has an irregular C-shaped cross section, and an outlet for the kneaded material has a more complicated irregularly-shaped cross section than the inlet.

Inventors:
TANIGUCHI, Osamu (2977, Taira, Yoshii-machi, Takasaki-sh, Gunma 15, 〒3702115, JP)
ORIMO, Masahiko (2977, Taira, Yoshii-machi, Takasaki-sh, Gunma 15, 〒3702115, JP)
Application Number:
JP2016/051417
Publication Date:
August 04, 2016
Filing Date:
January 19, 2016
Export Citation:
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Assignee:
HITACHI METALS, LTD. (2-70, Konan 1-chome Minato-k, Tokyo 24, 〒1088224, JP)
International Classes:
G03G15/09; H01F7/02; H01F13/00; H01F41/02
Domestic Patent References:
WO1998003981A11998-01-29
WO2012105226A12012-08-09
Foreign References:
JPH11162731A1999-06-18
JPH09275028A1997-10-21
JPH09148166A1997-06-06
JP2003100511A2003-04-04
JPS63133816A1988-06-06
JP2013021191A2013-01-31
JP2008244322A2008-10-09
Attorney, Agent or Firm:
KOHNO, Hideto et al. (KOHNO & KOHNO, 4-3 Tsuriganecho 2-chome, Chuo-ku, Osaka-sh, Osaka 35, 〒5400035, JP)
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