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Permanent magnet and manufacturing method thereof

A manufacturing method and technology of permanent magnets, applied in the field of materials, can solve problems such as demagnetization and failure of permanent magnets

Inactive Publication Date: 2014-03-26
苏永龙
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Permanent magnets are widely used in production and life, but due to the problems of the material itself and the production process, permanent magnets will have different degrees of degaussing and failure during use.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] A permanent magnet comprises 20 parts of iron powder, 15 parts of permalloy powder, 5 parts of low-carbon steel powder, 2 parts of hard alloy powder, 12 parts of aluminum-magnesium alloy powder and 1 part of metal zirconium powder.

[0015] The particle sizes of the powders are all 200 microns.

[0016] A method for manufacturing a permanent magnet, comprising the steps of:

[0017] Mix 20 parts of iron powder, 15 parts of Permalloy powder, 5 parts of low-carbon steel powder, 2 parts of cemented carbide powder, 12 parts of aluminum-magnesium alloy powder and 1 part of metal zirconium powder, and then place it in a set shape in the mold. The particle sizes of the powders are all 200 microns.

[0018] On the outside of the mold, use an alternating magnetic field with a constant amplitude and a frequency of 50 Hz to adjust the orientation of the above-mentioned alloy powder powder. During the adjustment, the mold is slightly vibrated to assist the turning of the powder, ...

Embodiment 2

[0021] A permanent magnet comprises 50 parts of iron powder, 20 parts of permalloy powder, 10 parts of low-carbon steel powder, 6 parts of hard alloy powder, 19 parts of aluminum-magnesium alloy powder and 3 parts of metal zirconium powder.

[0022] The particle size of the powders is all 300 microns.

Embodiment 3

[0024] A permanent magnet comprises 25 parts of iron powder, 17 parts of permalloy powder, 7 parts of low-carbon steel powder, 4 parts of hard alloy powder, 17 parts of aluminum-magnesium alloy powder and 2 parts of metal zirconium powder.

[0025] The particle sizes of the powders are all 250 microns.

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Abstract

A permanent magnet comprises: 20-50 parts of iron powder, 15-20 parts of permalloy powder, 5-10 parts of mild steel powder, 2-6 parts of cemented carbide powder, 12-19 parts of aluminium magnesium alloy powder, and 1-3 parts of metal zirconium powder. The manufacture method comprises: uniformly mixing the iron powder, the permalloy powder, the mild steel powder, the cemented carbide powder, the aluminium magnesium alloy powder, and the metal zirconium powder, and placing the mixture in a mould with a set shape; implementing orientation regulation of the alloy powder by applying an alternating magnetic field with a constant amplitude and 50Hz of frequency on the outer side of the mould, and slightly shocking the mould while regulation to help the powder to turn; and carrying out compression moulding. The permanent magnet provided by the method has advantages of good quality, and not easy demagnetization and failure, and can better guarantee production and life.

Description

technical field [0001] The invention belongs to the field of materials, in particular to a permanent magnet and a manufacturing method thereof. Background technique [0002] Permanent magnets are widely used in production and life, but due to the problems of the material itself and the production process, the permanent magnets will have different degrees of degaussing and failure during use. Contents of the invention [0003] The purpose of the present invention is to provide a permanent magnet and a manufacturing method thereof. The permanent magnet produced by the method has good quality, is not easy to demagnetize and fail, and can better guarantee production and life. [0004] The technical solutions adopted are: [0005] A permanent magnet, comprising 20-50 parts of iron powder, 15-20 parts of permalloy powder, 5-10 parts of low-carbon steel powder powder, 2-6 parts of hard alloy powder, 12-19 parts of aluminum-magnesium alloy powder and 1-3 parts of metal zirconium...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/00C22C33/02H01F1/047
Inventor 苏永龙
Owner 苏永龙
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