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A kind of rare earth permanent magnet material molding equipment and molding method

A technology of material molding and rare earth permanent magnets, which is applied in the direction of magnetic materials, magnetic objects, electrical components, etc., can solve the problem of low magnetic field strength

Active Publication Date: 2017-02-22
宁波金鸡强磁股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] As for the orientation of the radial ring magnet, in the prior art, the radial ring magnet is oriented by repelling the magnetic field. This orientation method is limited by the magnetic conduction of the mandrel, resulting in a low magnetic field intensity.

Method used

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  • A kind of rare earth permanent magnet material molding equipment and molding method
  • A kind of rare earth permanent magnet material molding equipment and molding method
  • A kind of rare earth permanent magnet material molding equipment and molding method

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Embodiment Construction

[0025] The following are specific embodiments of the present invention and in conjunction with the accompanying drawings, the technical solutions of the present invention are further described, but the present invention is not limited to these embodiments.

[0026] Please refer to figure 1 , figure 1 It is a schematic diagram of the structure of a plate magnet prepared by rotation in the first preferred embodiment of the present invention. exist figure 1 Among them, the bottom of the magnetic pole 4 is wound with a wire package 5 to generate a magnetic field, and the magnetic pole 4 gradually converges from the end to the top in structure so that the magnetic field converges at the top in a linear shape. In a preferred situation, the width of the magnetic field at the top of the magnetic pole is generally less than 5 mm.

[0027] figure 1 Although only one magnetic pole 4 wrapped around the wire package 5 is shown in FIG. 2 , multiple magnetic poles 4 can be provided accor...

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Abstract

The invention discloses rare earth permanent magnetic material molding equipment, which comprises one or a plurality of magnetic poles, and a die for containing magnetic powder, wherein the magnetic pole shrinks from tail to top, and the magnetic powder moves relatively to the magnetic pole. The magnetic powder is oriented through movement of the magnetic powder and motionless of a magnetic field; the front end of the magnetic field shrinks, so that line-by-line scanning is performed on the magnetic powder in movement, and the limit that a molding area is smaller than a magnet pole head in orientation and molding by the conventional magnetic field is broken. The equipment can prepare plate-like magnetic steel of large area or higher annular or tile magnetic steel.

Description

technical field [0001] The invention relates to the technical field of permanent magnet material manufacturing, in particular to a rare earth permanent magnet material forming equipment and a forming method. Background technique [0002] Rare earth permanent magnet materials have strong anisotropy and are widely used in the preparation of various high-performance magnetic materials. Existing rare earth permanent magnet materials are usually prepared by filling magnetic powder into a mold, applying a magnetic field to the mold and simultaneously pressing and forming it. However, in this molding method, the size of the rare earth permanent magnet material is compatible with the orientation magnetic pole head, that is, the size of the rare earth permanent magnet material is limited by the orientation magnetic field pole head, so the rare earth permanent magnet material prepared by this molding method The size of the material is usually smaller. [0003] For example, the appli...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F1/053B22F3/03
Inventor 王会杰胡元虎张元宏王涌陈咪珍
Owner 宁波金鸡强磁股份有限公司