Device for graphene modified sintered neodymium iron boron permanent magnet materials

A graphene-modified and permanent-magnet material technology, which is applied to a device for graphene-modified sintered NdFeB permanent magnet materials, and in the field of graphene-modified sintered NdFeB, can solve the problem that the overall temperature is not high and the reaction temperature is difficult to control. , time-consuming and labor-intensive problems, to achieve the effect of saving time

Inactive Publication Date: 2021-04-16
GANZHOU FORTUNE ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved in the present invention is to provide a device for graphene-modified sintered NdFeB permanent magnet materials, one of which is to have the function of automatically weighing the amount of material used, and to solve the problem of low efficiency, time-consuming and labor-intensive manual weighing Another purpose is to solve the problem that the reaction temperature is not easy to control, so as to achieve the effect of local high temperature in the reaction process, but the overall temperature is not high, and another purpose is to have a rapid pressure control function, It is convenient to inject argon into the equipment or adjust the pressure at any time, which is conducive to obtaining better quality final products

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  • Device for graphene modified sintered neodymium iron boron permanent magnet materials

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Embodiment 1

[0029] Such as figure 1 As shown, the present invention provides a kind of device of graphene modified sintered NdFeB permanent magnet material, comprises raw material distribution equipment 1, discharge plasma sintering equipment 2 and control panel 3, the bottom of raw material distribution equipment 1 is connected in discharge plasma Inside the sintering equipment 2 , a control panel 3 is fixedly installed on one side of the spark plasma sintering equipment 2 .

[0030] optional, such as figure 2As shown, the raw material distribution equipment 1 includes an induction valve 4, a material weighing bucket 5, an induction power head 6, an inductance connection channel 11 and a weighing control room 7. The raw material distribution equipment 1 is provided with a feed box inside, and the feed box The bottom of the material weighing bucket 5 is fixedly installed with a sensing valve 4, the top of the material weighing bucket 5 is lapped on the bottom of the feed box, and one en...

Embodiment 2

[0035] Such as Figure 4 As shown, on the basis of Embodiment 1, the present invention provides a technical solution: spark plasma sintering equipment 2 includes a heat storage and discharge chamber 17, a heat accumulation layer 18 and a temperature sensing probe 19, and one end of the heat storage and discharge chamber 17 is fixedly connected Inside the heat gathering layer 18 , the bottom of the temperature sensing probe 19 is fixedly installed inside the heat gathering layer 18 .

[0036] preferred, such as Figure 5 As shown, the spark plasma sintering equipment 2 is provided with a material sintering mold 21 inside, the two ends of the material sintering mold 21 are fixedly installed with an electrode layer 23, the bottom of the electrode layer 23 is provided with a pulse current transmitter 24, and the two sides of the electrode layer 23 are fixed. An electron reflective layer 25 is installed, and a material receiving port 22 is opened on the top of the material sinteri...

Embodiment 3

[0040] Such as Image 6 As shown, on the basis of Embodiment 1 and Embodiment 2, the present invention provides a technical solution: preferably, an internal gas control device 20 is fixedly installed inside the spark plasma sintering device 2, and the internal gas control device 20 is located in the discharge plasma sintering device. On both sides of the sintering equipment 2, the internal gas control equipment 20 includes a gas exchange plate 26, an argon / vacuum extraction and infusion chamber 27, an automatic telescopic connecting rod 28, an air pressurized extraction and injection chamber 29, and a limit card joint 30. The bottom of the vacuum extraction and infusion chamber 27 is fixedly connected to the top of the gas exchange plate 26, one end of the automatic telescopic connecting rod 28 is fixedly connected to the top of the argon / vacuum extraction and infusion chamber 27, and the other end of the automatic telescopic connecting rod 28 is fixedly connected to the air ...

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Abstract

The invention discloses a device for graphene modified sintered neodymium iron boron permanent magnet materials, and relates to the technical field of permanent magnet materials. The device comprises raw material distribution equipment, discharge plasma sintering equipment and a control panel, wherein the bottom of the raw material distribution equipment is connected to the interior of the discharge plasma sintering equipment, the control panel is fixedly installed on one side of the discharge plasma sintering equipment, and the raw material distribution equipment comprises a sensing valve, a material weighing barrel, a sensing power source, an inductor connecting channel and a weight weighing control chamber. According to the device, the use amount of various raw materials can be automatically controlled, manual weighing in advance is not needed, the operation of automatic weighing can be completed only by pouring the raw materials into the equipment, so that more time is saved, the high automation of the whole process of material filling, weighing and feeding stopping is realized, materials can be sintered and formed by the discharge plasma sintering device within several minutes, the preparation time can be greatly shortened, and the efficiency is improved.

Description

technical field [0001] The invention relates to a graphene-modified sintered NdFeB, relates to the technical field of permanent magnet materials, in particular to a device for graphene-modified sintered NdFeB permanent magnet materials. Background technique [0002] Since the development of the first generation of permanent magnet materials at the end of the nineteenth century, the development of new permanent magnet materials with better performance has been an important direction pursued by relevant industries and academic circles, and the advent of the third generation of NdFeB permanent magnet materials has greatly promoted The development and application of permanent magnetic materials. Compared with other materials, NdFeB permanent magnets have a larger maximum magnetic energy product, up to 460 kJ / m3, and the research is relatively mature. They are widely used in the production of computer hard drives, mobile phones, wind power and automatic traction devices. The low...

Claims

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Application Information

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IPC IPC(8): B22F3/105B22F1/00H01F1/057
Inventor 喻玺剧智华庞再升戚植奇陈剑威
Owner GANZHOU FORTUNE ELECTRONICS
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