Magnetic powder adhesive for adhesion of anisotropic magnetic powder

An anisotropic magnetic and magnetic powder technology, applied in the field of anisotropic magnets, can solve problems such as single components and functions, poor rotation of magnetic powder particles, and unsatisfactory magnetic field orientation effects, so as to ensure comprehensive magnetic properties, improve lubricity, The effect of improving the magnetic field orientation effect

Inactive Publication Date: 2019-11-19
DONGGUAN HAITIAN MAGNETIC IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The binders of existing permanent magnet materials are mainly plastics, resins, etc. The main defect is that the components and functions are single, which makes the magnetic field orientation effect of permanent magnet materials unsatisfactory due to the poor rotation of magnetic powder particles during magnetic field orientation.

Method used

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  • Magnetic powder adhesive for adhesion of anisotropic magnetic powder
  • Magnetic powder adhesive for adhesion of anisotropic magnetic powder
  • Magnetic powder adhesive for adhesion of anisotropic magnetic powder

Examples

Experimental program
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Effect test

Embodiment Construction

[0018] The following examples are further explanations and illustrations of the present invention, and do not constitute any limitation to the present invention.

[0019] The magnetic powder adhesive for bonding anisotropic magnetic powders of the present invention is prepared by mixing adhesives, curing agents, accelerators and additives, and is used to coat and connect magnetic powder particles when preparing magnetic powders of various magnets.

[0020] The magnetic powder glue includes the following components in weight percent: 60-70 adhesives, 21-28 curing agents, 2-4 accelerators and 6-9 additives. In this embodiment, preferably 65% ​​of the adhesive, 24% of the curing agent, 3% of the accelerator, and 8% of the additive, and the above components are mixed to form a magnetic powder adhesive mixture. Wherein, the adhesive may be one of rubber, plastic, and resin. In this embodiment, the resin is epoxy resin, which is the main component of the magnetic powder glue, and is...

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Abstract

The invention relates to a magnetic powder adhesive for the adhesion of anisotropic magnetic powder, wherein the magnetic powder adhesive comprises, by weight, 60-70 parts of an adhesive, 21-28 partsof a curing agent, 2-4 parts of an accelerator, and 6-9 parts of an additive, wherein the adhesive is one selected from a rubber, a plastic and a resin, the resin is an epoxy resin, the curing agent is aromatic amine, and the accelerator is imidazole. According to the present invention, various components are mixed to form the magnetic powder adhesive mixture; and with the application of the magnetic powder adhesive in the magnetic field orientation of magnetic powder adhesion, the magnetic powder particles can rotate freely so as to effectively improve the orientation efficiency and the orientation effect.

Description

【Technical field】 [0001] The invention relates to anisotropic magnets, in particular to a magnetic powder adhesive for anisotropic magnetic powder bonding which is easy to be oriented by a magnetic field and has good orientation effect. 【Background technique】 [0002] The bonded permanent magnet material is made by adding NdFeB magnetic powder into a binder. As a high-performance permanent magnet material, it conforms to the trend of the development of small, light and thin contemporary electronic products. It is used in office automation equipment, electric It is widely used in the fields of installation machinery, audio-visual equipment, instrumentation, small motors and measuring machinery, mobile phones, CD-ROM, DVD-ROM drive motors, hard disk spindle motors HDD and other micro-special DC motors and automation instruments. The binders of the existing permanent magnet materials are mainly plastics, resins, etc. The main defect is that the components and functions are sing...

Claims

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Application Information

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IPC IPC(8): C08L63/00C08L91/06C08K3/04C08G59/50C08G59/68H01F1/057
CPCC08G59/5033C08G59/686C08K2201/01C08L63/00H01F1/0578C08L91/06C08K3/04
Inventor 赵威盛赵立文
Owner DONGGUAN HAITIAN MAGNETIC IND CO LTD
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