Method for measuring depth of superhard abrasive impact toughness sample tube

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 ...

AI Technical Summary

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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