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What is the Leeb hardness tester

by:Sure     2021-08-25
With the development of monolithic technology, in 1978, Dr. Leeb, a Swiss, first proposed a brand-new hardness test method, which is the Richter scale test. The basic principle of the Leeb hardness tester test is that an impact body with a certain quality impacts the surface of the sample under a certain test force. The impact velocity and rebound velocity of the impact body at a distance of 1 mm from the surface of the sample are measured. With the development of monolithic technology, in 1978, Dr. Leeb, a Swiss, first proposed a new method for measuring hardness, which is the Richter scale test. The basic principle of the Leeb hardness tester is that an impact body with a certain quality impacts the surface of the sample under a certain test force. The impact speed and rebound speed of the impact body 1mm from the surface of the sample are measured. The electromagnetic principle is used to induce and The speed is proportional to the voltage. The Leeb hardness value is expressed as the ratio of the rebound velocity of the impact body to the impact velocity. The calculation formula of the Leeb hardness tester: HLu003d1000 (VB/VA). In the formula: HL-Leeb hardness value, VB-rebound speed of the impact body, VA-impact speed of the impact body.
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