Title:
圧粉成形体、リアクトル用コア、及び磁気回路部品
Document Type and Number:
Japanese Patent JP5845141
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a green compact having low loss and high productivity, a core for a reactor having the green compact, and a magnetic circuit component.SOLUTION: A green compact 10 is formed by compression-molding coated soft magnetic material powders having insulation coats, and is a deformed frustum mainly consisting of a frustum part 113 sandwiched between plate-like parts 111, 112 disposed so as to face each other. A longitudinal section of the green compact 10 consists of a trapezoidal surface 113s, a rectangular-shaped surface 111s at long side connected to a long side of the trapezoidal surface 113s, a rectangular-shaped surface 112s at short side connected to a short side of the trapezoidal surface 113s. A sliding surface of a molding die mainly consists of an outer peripheral surface 113o of the frustum part 113. Friction between a compression molded product and the molding die is reduced and damage of insulation coats of the green compact 10 can be reduced because the outer peripheral surface 113o is inclined to the extraction direction of the compression molded product. Therefore the green compact 10 has low loss, and high productivity by shortening post-processing time.
Inventors:
Jun Sato
Uozumi Masato
Koji Yamaguchi
Kazubetsu Kusetsu
Uozumi Masato
Koji Yamaguchi
Kazubetsu Kusetsu
Application Number:
JP2012125851A
Publication Date:
January 20, 2016
Filing Date:
June 01, 2012
Export Citation:
Assignee:
Sumitomo Electric Industries, Ltd.
Sumitomo Electric Sintered Alloy Co., Ltd.
Sumitomo Electric Sintered Alloy Co., Ltd.
International Classes:
H01F27/255; B22F1/00; B22F1/02; B22F3/00; B22F5/00; H01F27/24; H01F37/00
Domestic Patent References:
| JP2008160020A | ||||
| JP7173504A | ||||
| JP10296499A | ||||
| JP4168201A | ||||
| JP2000144211A | ||||
| JP2007201206A | ||||
| JP2006229203A |
Attorney, Agent or Firm:
Hiroshi Yamano