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Radial and axial composite magnetizing device and magnetizing method for bonded neodymium iron boron magnet ring

A magnetizing device, NdFeB technology, applied in the direction of magnetic objects, electrical components, circuits, etc., can solve the problems of large magnetic ring repulsion, high cost, difficult splicing and assembly, etc.

Pending Publication Date: 2022-03-29
NINGBO YUNSHENG BONDED MAGNET CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the past, this type of structure magnetic ring was often spliced ​​by two anisotropic sintered NdFeB magnetic rings with opposite polarities and one axially oriented sintered NdFeB magnetic ring. The repulsive force between the magnetic rings is relatively large, and splicing and assembly are difficult, resulting in high costs

Method used

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  • Radial and axial composite magnetizing device and magnetizing method for bonded neodymium iron boron magnet ring
  • Radial and axial composite magnetizing device and magnetizing method for bonded neodymium iron boron magnet ring
  • Radial and axial composite magnetizing device and magnetizing method for bonded neodymium iron boron magnet ring

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Embodiment Construction

[0033] The present invention is further explained in conjunction with the accompanying drawings.

[0034] see Figure 1 to Figure 12 A bonded NdFeB magnetic ring 3 radial and axial composite magnetizing device shown includes a fixture body 1 made of soft magnetic materials, and the materials made of the fixture body 1 include but are not limited to electrical pure iron , carbon steel, silicon steel sheet, permalloy, amorphous soft magnetic and nanocrystalline alloy materials, the fixture body 1 is provided with a ring-shaped groove.

[0035] A magnetizing coil 2 is placed in the slot, the slot is located in the middle of the fixture body 1, and the thickness of the coil is 0.2 to 0.8 times the height of the bonded NdFeB magnetic ring 3 to be magnetized. Coils use insulated wires including but not limited to enameled wires and yarn-covered wires. Materials include but not limited to copper wires and silver wires. The cross-sections of the wires in the coils include but not lim...

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Abstract

The invention discloses a bonding neodymium iron boron magnetic ring radial and axial composite magnetizing device which comprises a clamp body made of soft magnetic materials, an annular wire groove is formed in the clamp body, a magnetizing coil is placed in the wire groove, the magnetizing coil is spirally arranged and arranged in a wire winding groove, and the magnetizing coil is arranged in the wire winding groove. The magnetizing coil is integrally arranged in an annular shape, magnetic lines of force generated by pulse current after the magnetizing coil is powered on form a magnetic field loop, and a magnetic ring to be magnetized is arranged on the periphery of the annular magnetizing coil or in the annular magnetizing coil. The invention provides a radial and axial composite magnetizing device and method for a bonded neodymium-iron-boron magnetic ring. A radial, axial and radial composite magnetizing structure can be realized by magnetizing an integral bonded neodymium-iron-boron magnetic ring once.

Description

technical field [0001] The invention relates to the technical field of rare earth permanent magnet materials, in particular to a magnetizing device and a magnetizing method in which radial and axial directions of bonded NdFeB magnetic rings are compounded. Background technique [0002] As the third-generation rare earth permanent magnet material, NdFeB material has been developed since 1983. Due to its characteristics of one-time molding, high magnetic energy product, excellent dynamic recovery characteristics and high cost performance, it has high manufacturing efficiency, small size and light weight. The ideal material for industrial magnetic devices has been widely used in information technology, high-end CNC machine tools and robots, new energy vehicles, high-end medical equipment, urban rail transit, energy-saving home appliances and other fields. [0003] The splicing structure of radiation-oriented magnetized magnetic ring and axially oriented magnetized magnetic ring...

Claims

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Application Information

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IPC IPC(8): H01F13/00
CPCH01F13/003
Inventor 杨武张维山程波波龚嘉楠陈昶帆
Owner NINGBO YUNSHENG BONDED MAGNET CO LTD
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