JPS55128812A - Manufacture of rotor magnet of radial magnetic anisotropy - Google Patents

Manufacture of rotor magnet of radial magnetic anisotropy

Info

Publication number
JPS55128812A
JPS55128812A JP3622679A JP3622679A JPS55128812A JP S55128812 A JPS55128812 A JP S55128812A JP 3622679 A JP3622679 A JP 3622679A JP 3622679 A JP3622679 A JP 3622679A JP S55128812 A JPS55128812 A JP S55128812A
Authority
JP
Japan
Prior art keywords
easy magnetization
magnetization axis
cup
piece
manufacture
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP3622679A
Other languages
Japanese (ja)
Other versions
JPS6139725B2 (en
Inventor
Michihiro Torii
Masanao Okuda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
FDK Corp
Original Assignee
FDK Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by FDK Corp filed Critical FDK Corp
Priority to JP3622679A priority Critical patent/JPS55128812A/en
Publication of JPS55128812A publication Critical patent/JPS55128812A/en
Publication of JPS6139725B2 publication Critical patent/JPS6139725B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Manufacturing Cores, Coils, And Magnets (AREA)
  • Permanent Field Magnets Of Synchronous Machinery (AREA)

Abstract

PURPOSE: To simply and cheaply manufacture a magnet rotor of radial anisotropy, by drawing a plastic permanent magnet material having an easy magnetization axis in the direction of the thickness.
CONSTITUTION: A plastic permanent magnet material sheet 1 having an easy magnetization axis in the direction of the thickness is drawn by a die 2 and a punch 3 so that the annular part 5 of a cup-shaped piece 4 has an easy magnetization axis in the radial direction and the flange 6 and flat bottom 7 of the piece 4 have easy magnetization axes in the axial direction. The cup-shaped piece 4 is inserted into a punching die 10 having a die hole 9 of diameter almost equal to the inside diameter of the housing section 8 of the annular part 5 of the piece 4. A punch 11 of diameter slightly smaller than that of the die hole 9 is pressed down on the flat bottom 7 of the cup-shaped piece 4. The flange 6 is cut off. This results in providing a rotor magnet 12 having an easy magnetization axis in the radial direction.
COPYRIGHT: (C)1980,JPO&Japio
JP3622679A 1979-03-29 1979-03-29 Manufacture of rotor magnet of radial magnetic anisotropy Granted JPS55128812A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3622679A JPS55128812A (en) 1979-03-29 1979-03-29 Manufacture of rotor magnet of radial magnetic anisotropy

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3622679A JPS55128812A (en) 1979-03-29 1979-03-29 Manufacture of rotor magnet of radial magnetic anisotropy

Publications (2)

Publication Number Publication Date
JPS55128812A true JPS55128812A (en) 1980-10-06
JPS6139725B2 JPS6139725B2 (en) 1986-09-05

Family

ID=12463856

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3622679A Granted JPS55128812A (en) 1979-03-29 1979-03-29 Manufacture of rotor magnet of radial magnetic anisotropy

Country Status (1)

Country Link
JP (1) JPS55128812A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61182779U (en) * 1985-05-07 1986-11-14

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04306346A (en) * 1991-04-02 1992-10-29 Times Eng:Kk Reinforcing bar for reinforced concrete beam-column

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61182779U (en) * 1985-05-07 1986-11-14

Also Published As

Publication number Publication date
JPS6139725B2 (en) 1986-09-05

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