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Method for detecting granularity and surface feature of diamond micro-powder by using flow cytometer

A technology of diamond micropowder and surface characteristics, which is applied in the direction of particle size analysis, preparation of test samples, instruments, etc., to achieve the effects of not being easy to agglomerate, improving the dispersion effect, and improving the detection efficiency

Active Publication Date: 2017-12-26
惠丰钻石股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is: aiming at the deficiencies in the existing diamond powder detection technology, the present invention provides a method for detecting the particle size and surface characteristics of diamond powder by using a flow cytometer

Method used

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Examples

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Effect test

Embodiment 1

[0032] The present invention utilizes flow cytometer to detect the method for diamond micropowder particle size and surface characteristic, it is characterized in that, described detection method comprises the following steps:

[0033] a, at room temperature, take by weighing 0.2 g of the prepared diamond micropowder as a test sample;

[0034] B, sodium chloride is added in water and is mixed with the sodium chloride solution that mass concentration is 0.9%, the gained sodium chloride solution is adopted filter bottle to filter, obtains sodium chloride solution for subsequent use;

[0035] C, the detection sample diamond micropowder 0.2g that step a takes by weighing is placed in container, adds in the sodium chloride solution that 40mL step b prepares and stirs 3 minutes, obtains diamond micropowder solution for subsequent use;

[0036] d. Put the container containing the stirred diamond micropowder solution in step c on the lifting platform in the ultrasonic cell pulverizer,...

Embodiment 2

[0048] The present invention utilizes flow cytometer to detect the method for diamond micropowder particle size and surface characteristic, it is characterized in that, described detection method comprises the following steps:

[0049] a, at room temperature, take by weighing 0.2 g of the prepared diamond micropowder as a test sample;

[0050] B, sodium chloride is added in water and is mixed with the sodium chloride solution that mass concentration is 0.6%, the gained sodium chloride solution is adopted filter bottle to filter, obtains sodium chloride solution for subsequent use;

[0051] C, the detection sample diamond micropowder 0.2g that step a takes by weighing is placed in container, adds in the sodium chloride solution that 50mL step b prepares and stirs 4 minutes, obtains diamond micropowder solution for subsequent use;

[0052] d. Put the container containing the stirred diamond micropowder solution in step c on the lifting platform in the ultrasonic cell pulverizer,...

Embodiment 3

[0061] The present invention utilizes flow cytometer to detect the method for diamond micropowder particle size and surface characteristic, it is characterized in that, described detection method comprises the following steps:

[0062] a, at room temperature, take by weighing 0.2 g of the prepared diamond micropowder as a test sample;

[0063] B, sodium chloride is added in water and is mixed with the sodium chloride solution that mass concentration is 0.8%, the gained sodium chloride solution is adopted filter bottle to filter, obtains sodium chloride solution for subsequent use;

[0064] C, place 0.2 g of the test sample diamond micropowder weighed in step a in the container, add 60 mL of the sodium chloride solution prepared in step b and stir for 4 minutes to obtain the diamond micropowder solution for subsequent use;

[0065] d. Put the container containing the stirred diamond micropowder solution in step c on the lifting platform in the ultrasonic cell pulverizer, lift t...

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Abstract

The invention discloses a method for detecting the granularity and surface feature of diamond micro-powder by using a flow cytometer. The method comprises the steps of putting a detecting sample diamond micro-powder into a container, adding a prepared sodium chloride solution, stirring to obtain a diamond micro-powder solution; putting the container containing the diamond micro-powder solution into an ultrasonic cell pulverizer for ultrasonic dispersion, so as to obtain a primarily dispersed diamond micro-powder solution; standing the obtained solution, then adding a prepared octylphenoxypolyethoxyethanol solution and evenly shaking; then putting the solution into the ultrasonic cell pulverizer for ultrasonic dispersion again, so as to obtain a to-be-detected diamond powder solution; finally, automatically detecting the to-be-detected diamond powder solution by adopting the flow cytometer and automatically storing data; finally calling out data of diameter, circularity, breadth length ratio, strip ratio and granularity distribution, and analyzing a result. The detection method provided by the invention can reduce agglomeration to a large extent; the operation is simple, and the effect is obvious.

Description

1. Technical field: [0001] The invention relates to a method for detecting the particle size and surface characteristics of diamond micropowder, which belongs to the technical field of superhard material micropowder, and in particular relates to a method for detecting the particle size and surface characteristics of diamond micropowder by using a flow cytometer. 2. Background technology: [0002] Diamond micropowder refers to diamond particles with a particle size finer than 36 / 54 microns. In the production of diamond micropowder, the particle size distribution and surface characteristics of diamond (crystal form of diamond micropowder) have a great influence on the use of diamond micropowder, especially In the field of diamond wire saw applications. Different particle size distributions and different crystal forms will have a serious impact on diamond wire cutting. In the production of diamond, because the powder particles absorb a large amount of mechanical energy and hea...

Claims

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Application Information

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IPC IPC(8): G01N1/38G01N15/02G01N15/14
CPCG01N1/38G01N15/0205G01N15/1404
Inventor 王再福李飞
Owner 惠丰钻石股份有限公司
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