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Nd-Fe-B permanent magnet material for robot and preparation method of Nd-Fe-B permanent magnet material

A permanent magnet material, neodymium iron boron technology, applied in the direction of magnetic materials, inductor/transformer/magnet manufacturing, magnetic objects, etc., to achieve the effect of increasing anisotropy field, improving coercive force, and improving performance

Inactive Publication Date: 2016-11-09
ANHUI NINGCI ELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the field of intelligent robots, the performance requirements such as coercive force and magnetic energy product of NdFeB permanent magnet materials are relatively high, and the existing NdFeB permanent magnet material preparation methods can no longer meet the demand. Preparation method of coercive force and magnetic energy product of iron boron permanent magnet material

Method used

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Embodiment Construction

[0015] The present invention adopts the following technical solutions to achieve: the NdFeB permanent magnet material for robots is composed of the following elements according to the mass percentage: praseodymium neodymium 25~35%, boron 0.86~1.12%, dysprosium 1.6~4.2%, copper 0.1~ 0.8%, cobalt 1.2~3.6%, aluminum 0.1~0.6%, zirconium 0.05~0.35%, niobium 0.1~0.9%, gallium 0.05~0.35%, cerium 0.2~0.5%, gadolinium 0.3~0.6%, terbium 0.2~0.8% , holmium 0.1~0.7%, and the balance is iron.

[0016] As a preferred solution of the present invention, the mass ratio of praseodymium to neodymium of the neodymium-iron-boron permanent magnet material for robots is 1:3.

[0017] As a preferred solution of the present invention, the NdFeB permanent magnet material for robots consists of the following raw materials in parts by weight: praseodymium neodymium 28.5-29%, boron 0.94-0.98%, dysprosium 2.5-3%, copper 0.3-0.4%, cobalt 2~2.5%, aluminum 0.2~0.3%, zirconium 0.1~0.2%, niobium 0.2~0.3%, gall...

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Abstract

The invention discloses an Nd-Fe-B permanent magnet material for a robot. The Nd-Fe-B permanent magnet material comprises the following elements by mass percent: 25-35% of praseodymium neodymium, 0.86-1.12% of boron, 1.6-4.2% of dysprosium, 0.1-0.8% of copper, 1.2-3.6% of cobalt, 0.1-0.6% of aluminum, 0.05-0.35% of zirconium, 0.1-0.9% of niobium, 0.05-0.35% of gallium, 0.2-0.5% of cerium, 0.3-0.6% of gadolinium, 0.2-0.8% of terbium, and 0.1-0.7% of holmium, with the balance being iron. In the Nd-Fe-B permanent magnet material, element matching is optimized, the anisotropic field of a magnetic molecule is effectively improved, the coercivity of the Nd-Fe-B permanent magnet material is improved, the influence on magnetic energy product is reduced, and the performance of the Nd-Fe-B permanent magnet material is greatly improved.

Description

technical field [0001] The invention relates to the field of magnetic materials, in particular to a neodymium-iron-boron permanent magnet material for robots and a preparation method thereof. Background technique [0002] NdFeB permanent magnet material is the third generation of permanent magnet material, which has excellent magnetic characteristics and energy saving and environmental protection effects. As an important functional material, it has been widely used in energy, transportation, machinery, computers, intelligent robots and other fields. In the field of intelligent robots, the performance requirements such as coercive force and magnetic energy product of NdFeB permanent magnet materials are relatively high, and the existing NdFeB permanent magnet material preparation methods can no longer meet the demand. The preparation method of coercive force and magnetic energy product of iron boron permanent magnet material. Contents of the invention [0003] The purpose...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F1/057H01F41/02
CPCH01F1/0577H01F41/0253
Inventor 张大鹏
Owner ANHUI NINGCI ELECTRONICS TECH CO LTD
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