シャフト一体型ボンド磁石及びその製造方法

Title:

シャフト一体型ボンド磁石及びその製造方法

Document Type and Number:

Japanese Patent JP7200574

Kind Code:

B2

Abstract:

To provide a shaft-integrated bonded magnet having a high bond strength between a bond magnet and a shaft, and a manufacturing method of the shaft-integrated bonded magnet by compression molding.SOLUTION: In a shaft-integrated bonded magnet in which a cylindrical bond magnet is integrally provided on the peripheral surface of a cylindrical shaft 2, a plurality of first grooves 2d extending in the axial direction of the shaft 2 are formed on the peripheral surface of the large-diameter central portion 2a of the shaft 2. In addition, a second groove 2e is formed on the peripheral surface of the central portion 2a of the shaft 2 so as to extend over the entire region or a partial region in the circumferential direction.SELECTED DRAWING: Figure 3

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Inventors:

Hiroshi Okajima
Masahiro Masuzawa

Application Number:

JP2018182472A

Publication Date:

January 10, 2023

Filing Date:

September 27, 2018

Export Citation:

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Assignee:

Hitachi Metals Co., Ltd.

International Classes:

H01F41/02; H01F7/02

Domestic Patent References:

JP2005020974A
JP2005237047A
JP2018125517A
JP2003345135A
JP2019118215A
JP2007159191A

Foreign References:

WO2006001304A1

Attorney, Agent or Firm:

Hidehito Kono
Tono Kono

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