Original document(21 pages)  中文版
    A method of producing a radial anisotropic cylinder sintered magnet in which residual magnetic flux density in the radial direction of a cylinder increases or decreases at a cycle of 90ae along the peripheral direction of the cylinder, and the maximum value of radial-direction residual magnetic flux densities along the entire periphery of the cylinder is 0.95-1.60T with the minimum value of radial-direction residual magnetic flux densities being 50-95% of the maximum value, comprising the steps of using a ferromagnetic material as the core material of a mold, and molding and sintering magnetic powder filled in a mold cavity by applying an oriented magnetic field to the magnetic powder by a horizontal magnetic field vertical molding method; and a method of producing permanent magnet motor-use cylinder multi-pole magnet comprising the step of magnetizing the above magnet so that the boundary between the N pole and the S pole is located within a peripheral range of +-10ae of a radial direction in which a residual magnetic flux density shows a minimum value.
Application Number
申请号
200580009032 Application Date
申请日
2005.06.20
Title 名称 Methods of producing radial anisotropic cylinder sintered magnet and permanent magnet motor-use cylinder multi-pole magnet
Publication Number
公开号
1934663 Publication Date
公开日
2007.03.21
Approval Pub. Date Granted Pub. Date
International Classification 分类号 H01F41/02;H02K15/03
Applicant(s) Name
申请人
Shinetsu Chemical Co.
Address 地址
Inventor(s) Name 发明人
Attorney & Agent 代理人 caisheng wei

  
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