固相颗粒冲蚀性测量装置及所测岩粉冲蚀指标

本文介绍一种六方筒式固相颗粒冲蚀性测量装置,分析了其工作原理和冲蚀机理。对装置的工作参数——颗粒粒径、颗粒浓度、颗粒冲击速度等一一进行了试验和结果分析。在此基础上,确定了测量颗粒冲蚀性的标准规程,并用此规程测量多种岩石颗粒的冲蚀磨损性能。整个工作表明:这种冲蚀性测定装置体小轻便,操作方便,测量误差小,重复性能好,能区分不同岩石颗粒的冲蚀性能。根据需要,还能改变规程和测试材料,测量不同条件下颗粒冲蚀性能和材料的耐磨性能。

INTRODUCTION OF A NEW SOLID EROSION TESTER AND ITS MEASUREMENT OF THE EROSIVE WEAR OF ROCK GRAINS

In engineering operation, erosion of solids is a factor that cannot be ignored as it reduces the life and efficiency of machine and tool. Quantitative measurement of this wear is needed to study its law and to combat it. The authoers designed a hexagnal device for testing solid erosion and analysed its working principle and wear mechanism A lot of tests were made to study the effects of operating parameters of the tester, such as solid size, solid content and solid impact rate. Based on this a testing standard is presented Erosive wear of various rock grains was measured with this standard. Conclusions can be drawn from all the work that the hexagnal device is portable and easy-handling. It has minimum measuring error and good repeatability, and can be used as a tool for testing solid erosion. The tester application can also be expanded by adjusting operation parameters or/ and by changing testing materials to measure solid wear under different conditions and wear resistance of various materials.