Compared with the traditional hardness tester and the Leeb hardness tester, the ultrasonic hardness tester has its unique superiority.
通过对其工作原理的分析和与其他硬度测试仪器的对比，总结了超声硬度计在硬度测试上独特的优越性。
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In this paper, large alloy iron parts and low-alloy steel parts after surface heat treatment, used in the diesel engine, were tested and compared. By Leeb hardness sclerometer.