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A kind of functional material and preparation method

A technology of functional materials and alloys, applied in the direction of magnetic materials, inorganic materials, magnetic objects, etc., can solve the problem of insufficient magnetic induction intensity, and achieve the effects of good practicability, strong structure, and high social value

Active Publication Date: 2017-10-10
盐城市华达照明电器有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the residual magnetic induction of the material is not high enough

Method used

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  • A kind of functional material and preparation method
  • A kind of functional material and preparation method
  • A kind of functional material and preparation method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A preparation method of multiple rare earth phase materials, comprising the following steps:

[0019] 1) Dosing according to the following mass percentages: Nd34%, Nb0.01%, Gd0.01%, Ti0.01%, Ni0.15%, Bi1%, Dy 1%, Cr 0.01%, B 4%, residual Fe;

[0020] 2) Add the prepared raw materials above into a vacuum induction furnace to melt an alloy ingot, and the vacuum degree of the electric furnace is required to be less than 0.1Pa. Then put the obtained alloy ingot into the remelting tubular crucible in the vacuum induction forming furnace for remelting. The remelting temperature is 1600-1670°C. At 2-4mm above the rim, put the above alloy ingot in a tubular crucible and melt it. After the alloy is melted, it will be sprayed out from the hole at the bottom of the crucible under the action of argon and contact with the edge of the rotating runner to form a thickness of 770-780μm. , Alloy strip with a width of 13-15mm, the rotational speed of the runner rim is 20-24m / s.

[0021]...

Embodiment 2

[0023] A preparation method of multiple rare earth phase materials, comprising the following steps:

[0024] 1) Dosing according to the following mass percentages: Nd36%, Nb0.15%, Gd0.15%, Ti0.15%, Ni0.15%, Bi4%, Dy4%, Cr 0.15%, B 7%, residual Fe;

[0025] 2) Add the prepared raw materials above into a vacuum induction furnace to melt an alloy ingot, and the vacuum degree of the electric furnace is required to be less than 0.1Pa. Then put the obtained alloy ingot into the remelting tubular crucible in the vacuum induction forming furnace for remelting. The remelting temperature is 1600-1670°C. At 2-4mm above the rim, put the above alloy ingot in a tubular crucible and melt it. After the alloy is melted, it will be sprayed out from the hole at the bottom of the crucible under the action of argon and contact with the edge of the rotating runner to form a thickness of 770-780μm. , Alloy strip with a width of 13-15mm, the rotational speed of the runner rim is 20-24m / s.

[0026] ...

Embodiment 3

[0028] A preparation method of multiple rare earth phase materials, comprising the following steps:

[0029] 1) Dosing according to the following mass percentages: Nd35%, Nb0.02%, Gd0.03%, Ti0.075%, Ni0.09%, Bi3%, Dy3%, Cr 0.08%, B 6%, residual Fe;

[0030] 2) Add the prepared raw materials above into a vacuum induction furnace to melt an alloy ingot, and the vacuum degree of the electric furnace is required to be less than 0.1Pa. Then put the obtained alloy ingot into the remelting tubular crucible in the vacuum induction forming furnace for remelting. The remelting temperature is 1600-1670°C. At 2-4mm above the rim, put the above alloy ingot in a tubular crucible and melt it. After the alloy is melted, it will be sprayed out from the hole at the bottom of the crucible under the action of argon and contact with the edge of the rotating runner to form a thickness of 770-780μm. , Alloy strip with a width of 13-15mm, the rotational speed of the runner rim is 20-24m / s.

[0031]...

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Abstract

The invention discloses a functional material and a preparation method. The functional material is blended by components in percentage by mass as follows: 34%-36% of Nd, 0.01%-0.15% of Nb, 0.01%-0.15% of Gd, 0.01%-0.15% of Ti, 0.01%-0.15% of Ni, 1%-4% of Bi, 1%-4% of Dy, 0.01%-0.15% of Cr, 4%-7% of B and the balance of Fe. The functional material has uniform tissue and strong structure, the corrosion resistance of the material can be improved, and the magnetism is improved. The permanent magnet material has good stability and practicability and can be widely applied to various fields such as electronic devices, aerospace engineering, computer equipment, magnetic separators, communication equipment, medical equipment, electric bicycles, electronic toys and the like.

Description

technical field [0001] The invention belongs to the field of metal materials, and in particular relates to a functional material and a preparation method. Background technique [0002] It has a wide hysteresis loop, high coercive force, high remanence, and can maintain constant magnetic properties once magnetized. Also known as hard magnetic materials. In practice, permanent magnet materials work in the second quadrant demagnetization part of the hysteresis loop after deep magnetic saturation and magnetization. Commonly used permanent magnet materials are divided into AlNiCo permanent magnet alloys, FeCrCo permanent magnet alloys, permanent ferrites, rare earth permanent magnet materials and composite permanent magnet materials. [0003] Chinese patent CN201410682666.X discloses a rare earth permanent magnet material and its preparation method, wherein the main composition of the rare earth permanent magnet material is (by weight percentage, wt%), PrNd 28-35%; one of Dy or...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F1/059H01F1/08C22C38/12C22C38/14C22C38/08C22C38/18C22C33/02
CPCC22C33/02C22C38/005C22C38/08C22C38/12C22C38/14C22C38/18H01F1/059H01F1/086
Inventor 赵浩峰陶昭灵王玲张仕昭王巧玲刘妍慧张泽中李树岭阿穷王槐亮何晨晨许琪曼牟雯婷
Owner 盐城市华达照明电器有限公司
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