一、前言喷砂硬度计测定磨具硬度从1931年至今已有五十余年了,我国磨料磨具行业对150~#以粗粒度磨具硬度的检测一直沿用喷砂法。从几十年磨具制造和磨削应用的实践上看,喷砂法能够较好地反映磨具的硬度性能,并具有准确、迅速、简单的特点。尽管当前一些声、电测 First, the foreword Sandblasting hardness tester measured from 1931 so far has been more than 50 years, China’s abrasive industry to 150 ~ # to coarse-grained abrasive hardness testing has been used sandblasting method. From the practice of abrasive manufacturing and grinding applications for decades, the sandblasting method can better reflect the hardness performance of the abrasive and has the characteristics of being accurate, rapid and simple. Despite the current sound, electricity measurement