高分子添加剂对磨料水射流切面锥度影响的研究

Experimental study on cutting taper by high polymeric additives abrasive water jet

通过高分子添加剂磨料水射流和磨料水射流切割大理石的对比实验,测试了在不同工况下切割端面的切面锥度。实验结果表明:相同工况下,高分子添加剂磨料射流较磨料水射流能减小切割端面切面锥度,当高分子添加剂浓度过低或过高时(本实验为300 ppm和500 ppm),会零星出现切面锥度大于磨料水射流切面锥度状况;不同浓度高分子添加剂磨料射流对切割端面锥度影响不一,存在最优浓度,实验为400 ppm;相同走刀速度下,高分子添加剂磨料射流和磨料水射流端面切面锥度均随靶距的增加而增大。

By the cutting marble experiment between abrasive water jet and polymeric additives abrasive water jet, measured the cutting taper of the kerr in the different station. The experiment shows that polymeric addi- tives abrasive water jet can reduce the cutting taper than abrasive water jet, and when the polymer addi- tive concentration is too low or too high（the concentration is 300 ppm and 500 ppm in this experiment ）, the cutting taper is smaller sporadically under abrasive water jet than polymeric additives abrasive jet. The polymeric additive concentration have different influence on surface roughness, and the optimal concentration is 400ppm in this experiment. Under the same feeding speed, the cutting taper increases with the increase of the target distance by means of polymer additives abrasive jet or abrasive water iet.