Title:
A method to which the demagnetization loss of a bond magnet is made to increase
Document Type and Number:
Japanese Patent JP6021096
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a method of manufacturing a bond magnet, in which magnetization characteristics are improved and a characteristic adjustment width is widened, and which is simple and reduces costs.SOLUTION: Regardless of a grain size of a magnet powder, magnetization characteristics at a thermally regulated temperature 50°C are high similarly but as the thermally regulated temperature becomes higher, thermal demagnetization is enlarged more for the magnet powder of a small grain size, thereby incurring a characteristic difference. Namely, the grain size of the magnet powder is set within a range where thermal fluctuation occurs, such that action of a diamagnetic field is received easily and the amount of demagnetization caused by thermal fluctuation is increased. Therefore, a method of manufacturing a bond magnet can be obtained in which high magnetization characteristics can be obtained and a characteristic adjustment width is widened, and which is simple and reduces costs.
Inventors:
Haruhiro Yukimura
Application Number:
JP2012017889A
Publication Date:
November 02, 2016
Filing Date:
January 31, 2012
Export Citation:
Assignee:
Minebea Co., Ltd.
International Classes:
H01F41/02; H01F1/057; H01F1/08; H01F13/00
Domestic Patent References:
| JP2006203173A | ||||
| JP2008047554A | ||||
| JP3053505A | ||||
| JP10177911A | ||||
| JP2005260189A |
Attorney, Agent or Firm:
Tomohiro Sakamoto