Application and Calibration Compensation of Leeb Hardness Tester in Heat Treatment Field

The detection principle of Leeb hardness tester and the precautions in the application of heat treatment field were described,and the calibration compensation method and results of Leeb hardness tester were discussed. The results show that the brand, weight, hardness, thickness and surface roughness of the tested material should be paid attention to when using the Leeb hardness tester, and the appropriate impact device and test method should be adopted to avoid the detection error caused by unsuitable test conditions or improper operation. In the case of unsuitable testing conditions and unsatisfactory environment, the accuracy of conversion results can be improved by calculating the calibration deviation (compensation value) and making a calibration.