Title:
An insulating adhesion method of a neodymium magnet, and a pressing device of a lamination neodymium magnet
Document Type and Number:
Japanese Patent JP6207099
Kind Code:
B2
Abstract:
According to the present invention there is provided a method of bonding Nd-Fe-B permanent magnets together. The method includes the steps of:
a) degreasing and activating adhesion surfaces of the Nd-Fe-B permanent magnets;
b) coating an insulating adhesive on the adhesion surfaces of the Nd-Fe-B permanent magnets such that a thickness of an adhesive layer is 1 to 100µm;
c) initial curing the insulating adhesive at a temperature T1 of 20°C to 250°C for 0.1 h to 24h;
d) stacking the Nd-Fe-B permanent magnets together in a fixing tool (4) and curing the insulating adhesive under pressure of 0.1MPa to 10 MPa and a temperature T2 of 150°C to 350°C for 0.1h to 12h; and
e) stop heating and allow to cool down the bonded Nd-Fe-B permanent magnets to room temperature.
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Inventors:
Peng
Jia Michining
Yang Kun Kun
Jia Michining
Yang Kun Kun
Application Number:
JP2015231361A
Publication Date:
October 04, 2017
Filing Date:
November 27, 2015
Export Citation:
Assignee:
Yantai Steel Magnetic Materials Stock Co., Ltd.
International Classes:
H01F41/02; C09J5/02; C09J5/06; C09J201/00; H01F7/02; H02K15/03
Domestic Patent References:
| JP2004328927A | ||||
| JP59006760A | ||||
| JP5812821B2 | ||||
| JP2002158105A | ||||
| JP2003293190A | ||||
| JP2006506039A | ||||
| JP62117069U | ||||
| JP2014027100A |
Foreign References:
| WO2001095460A1 |
Attorney, Agent or Firm:
Kenji Hidaka
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