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洛氏硬度计具有操作简便、工作效率高、对试样破坏性小、测量范围广等优点 ,广泛应用于冶金、电子、机械等行业和部门。在日常的检修工作中 ,我们经常会遇到测量示值超差的现象。下面以莱州产ＨＲ - 15 0Ａ型硬度计为例 ,对其超差原因及调修进行探讨。一、测量示值严重偏低1 压
Rockwell hardness tester has the advantages of simple operation, high work efficiency, small destructiveness of the sample, wide measuring range and other advantages. It is widely used in metallurgy, electronics, machinery and other industries and departments. In routine maintenance work, we often encounter the phenomenon of measuring the value of tolerance. The following to Laizhou HR - 150A type hardness tester, for example, to investigate the reasons for its overshoot and repair. First, the measurement shows a serious low pressure 1