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为解决石油泵管(内径φ38～φ100.5)内孔表面硬度,炮管内表面及其它缸体内表面硬度的测量,设计了一种特深孔内表面洛氏硬度计,介绍了该仪器结构原理及测量精度分析.
In order to solve the inner surface hardness of the inner diameter of the oil pump pipe (inner diameter φ38 ~ φ100.5), the inner surface of the barrel and other cylinder body, a special deep-hole inner surface Rockwell hardness tester is designed. The structure of the instrument Principle and measurement accuracy analysis.