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Sintered neodymium iron boron permanent magnet material for louver and preparation method thereof

A permanent magnet material, NdFeB technology, applied in magnetic materials, inductance/transformer/magnet manufacturing, magnetic objects, etc., can solve problems such as difficulty in opening and closing shutters, economic losses for customers, trouble in replacing magnets, etc., to increase lifespan, Reduce trouble and economic loss, avoid the effect of demagnetization

Inactive Publication Date: 2018-11-16
江苏博瑞通磁业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Blinds are a style of windows, which originated in China. The shutters on the market are either slender ornate, or rough and majestic. The horizontal lines arranged as a whole show a grand and warm plane beauty. To bring a sense of change and pleasing to the modern and simple space, magnets are used on the blinds. Magnets are particularly important parts in the opening and closing of the blinds. If the magnetism of the magnets decreases or disappears, it may cause difficulty in opening and closing the blinds, or even cannot Opening and closing, the magnet must be replaced at this time, which is troublesome to replace the magnet, and brings unnecessary economic losses to the customer. The magnet in the shutter is particularly important. Therefore, the present invention proposes a solution to the problem that the magnet in the shutter is easy to demagnetize. Sintered NdFeB permanent magnet material for shutters and preparation method thereof

Method used

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  • Sintered neodymium iron boron permanent magnet material for louver and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A sintered NdFeB permanent magnet material for blinds, comprising the following mass ratio components: 20 parts of Nd flakes, 65 parts of Fe flakes, 1 part of B flakes and 1 part of metal alloy nano powder.

[0024] In this embodiment: the metal alloy nanopowder is a mixture of Fe-based alloys, Co-based alloys and Cu-based alloys.

[0025] The above materials are prepared into NdFeB permanent magnet materials, including the following steps:

[0026] Step 1: Put Nd flakes, Fe flakes and B flakes in a vacuum induction melting furnace for mixing and melting, and then shape them to make rare earth permanent magnet blocks;

[0027] Step 2: The rare earth permanent magnet block is made into rare earth magnetic powder with a diameter of 2 microns through hydrogen explosion and jet milling;

[0028] Step 3: Put the rare earth magnetic powder and the metal alloy nano into a stainless steel container for stirring and mixing, and the stirring and mixing time is 2 hours;

[0029]...

Embodiment 2

[0033] A sintered NdFeB permanent magnet material for blinds, comprising the following mass ratio components: 35 parts of Nd flakes, 75 parts of Fe flakes, 3 parts of B flakes and 2 parts of metal alloy nano powder.

[0034] In this embodiment: the metal alloy nanopowder is a mixture of Fe-based alloys, Co-based alloys and Cu-based alloys.

[0035] The above materials are prepared into NdFeB permanent magnet materials, including the following steps:

[0036] Step 1: Put Nd flakes, Fe flakes and B flakes in a vacuum induction melting furnace for mixing and melting, and then shape them to make rare earth permanent magnet blocks;

[0037] Step 2: The rare earth permanent magnet block is made into rare earth magnetic powder with a diameter of 2 microns through hydrogen explosion and jet milling;

[0038] Step 3: Put the rare earth magnetic powder and the metal alloy nano into a stainless steel container for stirring and mixing, and the stirring and mixing time is 2 hours;

[003...

Embodiment 3

[0043] A sintered NdFeB permanent magnet material for blinds, comprising the following mass ratio components: 50 parts of Nd flakes, 80 parts of Fe flakes, 5 parts of B flakes and 3 parts of metal alloy nano powder.

[0044] In this embodiment: the metal alloy nanopowder is a mixture of Fe-based alloys, Co-based alloys and Cu-based alloys.

[0045] The above materials are prepared into NdFeB permanent magnet materials, including the following steps:

[0046] Step 1: Put Nd flakes, Fe flakes and B flakes in a vacuum induction melting furnace for mixing and melting, and then shape them to make rare earth permanent magnet blocks;

[0047] Step 2: The rare earth permanent magnet block is made into rare earth magnetic powder with a diameter of 2 microns through hydrogen explosion and jet milling;

[0048] Step 3: Put the rare earth magnetic powder and the metal alloy nano into a stainless steel container for stirring and mixing, and the stirring and mixing time is 2 hours;

[004...

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Abstract

The invention provides a sintered neodymium iron boron permanent magnet material for a louver and a preparation method thereof and relates to the technical field of magnetic materials. The neodymium iron boron permanent magnet material is prepared from, by mass, 20-50 parts of Nd sheets, 65-80 parts of Fe sheets, 1-5 parts of B sheets and 1-3 parts of metal alloy nano-powder through block making,powder mixing, oriented compression and formation, vacuum sintering and actual thermal treatment. The neodymium iron boron permanent magnet material obtained by adopting the material proportion and the method has better magnetic property, the service life of the neodymium iron boron permanent magnet material on the louver is effectively prolonged, the problem is solved that the permanent magnet material on the louver is demagnetized after being used for a period of time, and unnecessary trouble and economic losses brought by replacement needed after the permanent magnet material on the louveris used for a period of time are decreased.

Description

technical field [0001] The invention relates to the technical field of magnetic materials, in particular to a sintered NdFeB permanent magnet material for shutters and a preparation method thereof. Background technique [0002] Blinds are a style of windows, which originated in China. The shutters on the market are either slender and gorgeous, or bold and majestic. The horizontal lines arranged as a whole show a grand and warm plane beauty. To bring a sense of change and pleasing to the modern and simple space, magnets are used on the blinds. Magnets are particularly important parts in the opening and closing of the blinds. If the magnetism of the magnets decreases or disappears, it may cause difficulty in opening and closing the blinds, or even cannot Opening and closing, the magnet must be replaced at this time, which is troublesome to replace the magnet, and it will bring unnecessary economic losses to the customer. The magnet in the shutter is particularly important. A ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F1/057H01F41/02
CPCH01F1/0577H01F41/0266
Inventor 刘兴民
Owner 江苏博瑞通磁业有限公司