实验研究了磨削参数对磨削热压氮化硅（HPSN）强度和表面光洁度的影响。研究了平面磨削中砂轮粒度、砂轮切削深度和工作速度等机械参数。建立了砂轮切割深度与地面HPSN抗弯强度之间的关系。由此，提出了高效、高强度磨削HPSN的建议。探讨了表面光洁度与磨削参数之间的关系。

EXPERIMENTAL RESEARCH HAS BEEN CONDUCTED INTO THE EFFECT OF GRINDING PARAMETERS ON STRENGTH AND SURFACE FINISH OF GROUND HOT PRESSED SILICON NITRIDE (HPSN). WHEEL GRIT SIZE AND MACHINE PARAMETERS OF WHEEL DEPTH OF CUT AND WORKSPEED IN SURFACE GRINDING HAVE BEEN INVESTIGATED. A RELATIONSHIP HAS BEEN ESTABLISHED BETWEEN THE WHEEL GRIT DEPTH OF CUT AND FLEXURAL STRENGTH OF GROUND HPSN. FROM THIS, RECOMMENDATIONS ARE MADE FOR EFFICIENT, HIGH STRENGTH GRINDING OF HPSN. THE RELATIONSHIPS BETWEEN SURFACE FINISH AND GRINDING PARAMETERS ARE EXPLORED.