Component analysis and sample preparation method of grain boundary diffusion type neodymium iron boron

A technology of grain boundary diffusion and component analysis, which is applied in the direction of analysis of materials, preparation of test samples, sampling, etc., can solve the problems of complex sample preparation and process for component analysis, long digestion process, insufficient digestion, etc., to achieve easy operation, The effect of short time, shortened process and time

Inactive Publication Date: 2020-12-18
GANZHOU FORTUNE ELECTRONICS
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a sample preparation method for component analysis of NdFeB-like grain boundary diffusion, which solves the problem that the final digestion process is relatively long due to the large sample volume, and it is extremely prone to insufficient digestion. , affecting the final component analysis sample preparation and complex problems in the process

Method used

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  • Component analysis and sample preparation method of grain boundary diffusion type neodymium iron boron
  • Component analysis and sample preparation method of grain boundary diffusion type neodymium iron boron
  • Component analysis and sample preparation method of grain boundary diffusion type neodymium iron boron

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Embodiment 1

[0032] Embodiment 1: A sample preparation method for component analysis of NdFeB-like grain boundary diffusion, comprising the following steps:

[0033] S1, NdFeB pretreatment

[0034] Select a piece of NdFeB sheet with a thickness of 5mm, and use the corresponding treatment liquid to carry out surface treatment on the selected NdFeB sheet to remove surface stains, then rinse with distilled water, and then dry the surface by drying equipment to obtain the foundation For NdFeB flakes, the treatment solution is hydrochloric acid solution or nitric acid solution, the treatment time of the treatment solution is 4-8 minutes, and the drying time of the drying equipment is 3-6 minutes.

[0035] S2. Making grain boundary diffusion NdFeB

[0036] The basic NdFeB flakes obtained after pretreatment are prepared by grain boundary diffusion to obtain grain boundary diffusion-like NdFeB flakes. The preparation methods of grain boundary diffusion include evaporation diffusion, magnetron spu...

Embodiment 2

[0045] Embodiment 2: A sample preparation method for component analysis of NdFeB-like grain boundary diffusion, comprising the following steps:

[0046] S1, NdFeB pretreatment

[0047]Select a piece of NdFeB sheet with a thickness of 6mm, and use the corresponding treatment liquid to carry out surface treatment on the selected NdFeB sheet to remove surface stains, then rinse with distilled water, and then dry the surface by drying equipment to obtain the foundation For NdFeB flakes, the treatment solution is hydrochloric acid solution or nitric acid solution, the treatment time of the treatment solution is 4-8 minutes, and the drying time of the drying equipment is 3-6 minutes.

[0048] S2. Making grain boundary diffusion NdFeB

[0049] The basic NdFeB flakes obtained after pretreatment are prepared by grain boundary diffusion to obtain grain boundary diffusion-like NdFeB flakes. The preparation methods of grain boundary diffusion include evaporation diffusion, magnetron sput...

Embodiment 3

[0058] Embodiment 3: A sample preparation method for component analysis of NdFeB-like grain boundary diffusion, comprising the following steps:

[0059] S1, NdFeB pretreatment

[0060] Select a piece of NdFeB sheet with a thickness of 6.5 mm, and use the corresponding treatment liquid to carry out surface treatment on the selected NdFeB sheet to remove surface stains, then rinse with distilled water, and then dry the surface by drying equipment to obtain For basic NdFeB flakes, the treatment solution is hydrochloric acid solution or nitric acid solution, the treatment time of the treatment solution is 4-8 minutes, and the drying time of the drying equipment is 3-6 minutes.

[0061] S2. Making grain boundary diffusion NdFeB

[0062] The basic NdFeB flakes obtained after pretreatment are prepared by grain boundary diffusion to obtain grain boundary diffusion-like NdFeB flakes. The preparation methods of grain boundary diffusion include evaporation diffusion, magnetron sputterin...

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Abstract

The invention relates to the technical field of grain boundary diffusion type neodymium iron boron component analysis, and discloses a component analysis sample preparation method of grain boundary diffusion type neodymium iron boron, which comprises the following steps of S1, neodymium iron boron pretreatment, S2, grain boundary diffusion type neodymium iron boron preparation, S3, grain boundarydiffusion type neodymium iron boron selection, S4, cleaning and drying, S5, sample crushing, and S6, sample analysis and sample preparation. According to the component analysis and sample preparationmethod of the grain boundary diffusion type neodymium iron boron, component analysis and sample preparation are conducted on the grain boundary diffusion type neodymium iron boron through six steps ofS1, neodymium iron boron pretreatment, S2, grain boundary diffusion type neodymium iron boron preparation, S3, grain boundary diffusion type neodymium iron boron selection, S4, cleaning and drying, S5, sample crushing and S6, sample analysis and sample preparation, the step process is simple, and operation is easy. Meanwhile, the flaky sample is converted into powder in the step S5, digestion treatment in the step S6 is facilitated, the sample digestion process is more sufficient, the time is shorter, and the component analysis and sample preparation time is greatly shortened.

Description

technical field [0001] The invention relates to the technical field of component analysis of grain boundary diffusion-like NdFeB, in particular to a component analysis and sample preparation method of grain boundary diffusion-like NdFeB. Background technique [0002] NdFeB magnets, also known as NdFeB magnets, are tetragonal crystals formed of neodymium, iron, and boron. The magnetic energy product of this magnet is greater than that of the samarium cobalt magnet, and it was the material with the largest magnetic energy product in the world at that time. This kind of magnet is the second most magnetic permanent magnet after the absolute zero holmium magnet, and it is also the most commonly used rare earth magnet. NdFeB magnets are widely used in electronic products, such as hard drives, mobile phones, earphones, and battery-powered tools, and are widely used in automobiles, consumer electronics, and wind power. In order to save resources and improve performance, a kind of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/28G01N1/34G01N1/44
CPCG01N1/28G01N1/286G01N1/34G01N1/44
Inventor 喻玺庞再升钟春燕戚植奇
Owner GANZHOU FORTUNE ELECTRONICS
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