Method for measuring depth of superhard abrasive impact toughness sample tube

An impact toughness, super-hard abrasive technology, applied in measuring devices, using repetitive force/pulse force to test the strength of materials, analyzing materials, etc. In-depth test accuracy, affecting product production and actual use, etc., to achieve the effect of accurate performance indicators and product classification, convenient measurement, and small errors

Inactive Publication Date: 2017-01-04
ZHONGNAN DIAMOND CO LTD
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Problems solved by technology

When measuring with a depth micrometer, the repeated measurement error generally exceeds 0.1mm. This depth difference will cause an error of more than 2% in the superhard abrasive impact toughness test value, which will cause unnecessary trouble for the analysis and elimination of measurement errors and affect the depth test of the sample tube. accuracy, which may lead to great differences in the performance index and product classification of superabrasives, affecting product production and actual use

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  • Method for measuring depth of superhard abrasive impact toughness sample tube

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Embodiment Construction

[0012] The present invention will be further described below in combination with specific embodiments.

[0013] The main steps of the synthetic diamond impact toughness test are: put 2 ct (0.4 g) of the sample to be tested and a steel ball (φ8) into the impact sample tube, cover it and clamp it on the impact toughness tester. Turn on the impact toughness tester and measure the unbroken rate after a certain number of impacts. The unbroken rate is corrected by the standard sample, which is the impact toughness value of the sample.

[0014] see figure 1 , a superabrasive impact toughness sample tube, comprising a sample tube 1 and a sample tube cover 2, is applied to the impact toughness test of artificial diamond, and the method for measuring its depth comprises the following steps:

[0015] 1) Clean the sample tube to be measured with alcohol, dry it and place it under the temperature and humidity conditions required for measurement for more than 30 minutes;

[0016] 2) Take ...

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Abstract

The invention discloses a method for measuring the depth of a superhard abrasive impact toughness sample tube. By cleaning a sample tube with alcohol before measurement, the influence on the measurement result caused by dust and sundries adhered to the sample tube can be effectively avoided, the measurement error is reduced, and the measurement accuracy is improved; and a G5-precision steel ball with high ball precision is adopted, the steel ball diameter and the measurement direction are independent from the direction of putting the steel ball into the sample tube effectively, thus the measurement is more convenient, accurate and effective, and the repeatability measurement error can be effectively controlled below 0.01mm. In the measurement method disclosed by the invention, the tool selection is easy, and the measurement steps are simple and convenient; more importantly, the measurement result error is low, the data is accurate, the error is low, thus the performance index and product grading of the superhard abrasive are more accurate, the actual production and application of the product are better met, and the product quality as well as the safety, stability and reliability of actual application is improved.

Description

technical field [0001] The invention relates to the technical field of superhard abrasive performance detection, in particular to a method for measuring the depth of a superhard abrasive impact toughness sample tube. Background technique [0002] Impact toughness is the main performance index and product classification basis of superabrasives. The sample tube is an important part of the superabrasive impact toughness test. The depth of the sample tube is one of the main parameters affecting the impact toughness test value. It must be accurately measured during processing, production and purchase acceptance. According to the length measurement rules, the depth of the sample tube is now measured with a depth micrometer. However, due to the material characteristics and high hardness of the sample tube, the sample tube cannot be stamped, and can only be produced by turning and heat treatment. The bottom of the actual product is not an ideal smooth and regular arc surface, but ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/32
CPCG01N3/32G01N2203/0005
Inventor 卢灿华张凤岭王志涛张凤莲王洋
Owner ZHONGNAN DIAMOND CO LTD
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