Webster hardness tester is small and portable, and it is also convenient and fast to use. It is deeply loved by quality inspection personnel of aluminum profile factories at home and abroad. Although Webster hardness tester is very simple to use, some improper operations will also bring deviation to the measurement results. Here we will talk about these factors that affect the measurement accuracy to help you use Webster hardness tester normally.
During the test, it should be noted that the distance between two adjacent indentations should not be less than 6mm, otherwise, the previous indentation will affect the accuracy of the next measurement.
Although the hard oxide film is very thin, it will also affect the accuracy of hardness measurement of aluminum profile. Experience shows that the thickness is 10 μ M oxide film will make the hardness measurement value higher by 0.5 ~ 1HW.
All kinds of coatings will seriously affect the measurement accuracy. Therefore, it is required to remove the coating with sandpaper or solvent before hardness measurement.
Hi, I'm Joanna Zhao, the Import & Export Manager of Shenyang TX Testing Instruments Inc. I've been with TX Testing for 15 years, gaining hands-on experience by closely observing the production process and personally assembling and testing our portable hardness testers. This has deepened my technical understanding and strengthened my confidence in the industry's development. With this foundation, I provide professional support, feasibility analyses, and customized solutions to meet diverse customer needs, offering one-stop services that ensure efficiency and satisfaction.
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