Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A kind of diamond powder particle size analysis sampling quantitative method

A diamond powder and particle size analysis technology, which is applied in particle size analysis, particle and sedimentation analysis, sampling, etc., can solve problems that affect the accuracy and stability of analysis results, troublesome sampling methods, and deviations in analysis results, etc., and achieve diamond particle size analysis. Standardized sampling methods, improved sample preparation efficiency, and improved stability

Active Publication Date: 2018-08-28
CENT FOR QUALITY SUPERVISION & INSPECTION OF ARTIFICIAL DIAMOND POWDER IN HENAN PROVINCE
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, when the operator conducts particle size analysis, when preparing the analysis suspension, he must take multiple samples to configure the suspension containing the particle sample to be analyzed, until the concentration of the prepared suspension meets the analysis requirements, then the analysis can be performed. The process is time-consuming and labor-intensive, and because the concentration required by the instrument has a certain range, even the suspension prepared by multiple tests cannot guarantee the consistency of each concentration, and the difference in concentration will lead to deviations in the analysis results
Therefore, the current sampling method is cumbersome, cannot be quantified, and is not standardized, which affects the accuracy and stability of the analysis results.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A kind of diamond powder particle size analysis sampling quantitative method
  • A kind of diamond powder particle size analysis sampling quantitative method
  • A kind of diamond powder particle size analysis sampling quantitative method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Take M8 / 12 diamond micropowder as the reference sample, and its average particle size is d 1 =(8+12) / 2=10μm, the laser particle size analyzer is used as the analysis instrument. After many tests, it is determined that the best sampling volume is 0.2±0.01g, and the test is relatively stable. Therefore, the best sampling volume for the reference sample is 0.2±0.01g.

[0037] Take three types of diamond powder, M2 / 4, M8 / 16, and M15 / 25 as the samples to be tested, and their average particle sizes are d. 2(M2 / 4) =(2+4) / 2=3μm, d 2(M8 / 16) =(8+16) / 2=12μm, d 2(M15 / 25) =(15+25) / 2=20μm, then according to the formula Calculate the optimal sampling volume of the three samples, as shown in Table 1. The three samples of diamond powder to be tested were prepared into suspensions for analysis by the laser particle size analyzer. All of them were successful at one time, and they all met the concentration requirements of the instrument analysis, and good test results were obtained, as shown ...

Embodiment 2

[0046] Take M8 / 12 diamond micropowder as the reference sample, and its average particle size is d 1 =(8+12) / 2=10μm, using the resistance method particle size analyzer as the analysis instrument, after many tests, it is determined that the best sampling amount is 0.1±0.001g, the test is relatively stable, so the best sampling amount for the reference sample It is 0.1±0.001g.

[0047] Take diamond powder M2 / 4, M8 / 16, M15 / 25 as the samples to be tested, and their average particle sizes are d respectively 2(M2 / 4) =(2+4) / 2=3μm, d 2(M8 / 16) =(8+16) / 2=12μm, d 2(M15 / 25) =(15+25) / 2=20μm, then according to the formula Calculate the optimal sampling volume of the three samples, as shown in Table 3. The three samples of diamond powder to be tested were prepared as suspensions for the analysis of the instrument resistance particle size analyzer. All of them were successful at one time and met the concentration requirements of the instrument analysis. The test results are shown in Table 3.

[00...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
particle diameteraaaaaaaaaa
particle sizeaaaaaaaaaa
particle sizeaaaaaaaaaa
Login to View More

Abstract

The invention discloses a sampling quantification method for analyzing the granularity of diamond micro-powder. The method comprises the following steps: taking a diamond micro-powder reference sample with the average particle size of d1, and carrying out multi-time measurement through adopting a laser particle analyzer or a resistance particle analyzer to determine an optimum sampling amount m1 for the granularity analysis of the sample; and detecting a diamond micro-powder sample-to-be detected with the average particle size of d2 through adopting the same laser particle analyzer, determining an optimum sampling amount m2 for the granularity analysis of the sample-to-be-detected from the optimum sampling amount m1 of the diamond micro-powder reference sample according to the following formula: m2 = (m1*d2) / d1, and analyzing and detecting the granularity of the diamond micro-powder sample-to-be-detected. The sample be rapidly made through the formula determined by the method right the first time, so the sample making efficiency is greatly improved, sample making standards are standardized, and the accuracy and the stability of a test result are improved.

Description

Technical field [0001] The invention belongs to the technical field of superhard material detection, and in particular relates to a method for sampling and quantifying diamond fine powder particle size analysis. technical background [0002] The particle size composition of diamond powder is an important technical indicator for measuring product quality. At present, the analysis of particle size composition is usually performed by laser particle size analyzer, resistance method particle size analyzer and other instruments. [0003] No matter which method is used in the analysis process, it is necessary to take a small amount of micropowder sample and add it to the dispersion medium (usually an aqueous solution) to form a certain concentration of suspension before the analysis can be performed. The concentration of the suspension should not be too large. It should not be too small, too much or too small concentration will affect the measurement of the instrument. At present, when ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G01N15/02
CPCG01N15/02G01N15/0205G01N2001/1006
Inventor 梁晓冬张晓晨王敏张钰嵩陈洁周波王本龙
Owner CENT FOR QUALITY SUPERVISION & INSPECTION OF ARTIFICIAL DIAMOND POWDER IN HENAN PROVINCE
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com