淹没状态下超高压磨料水射流切割实验研究

利用水射流切割实验系统,在80～240 MPa压力范围内对完全淹没状态下磨料水射流切割岩石的性能进行了实验研究.通过实验及数据分析,得出了磨料粒径和质量流量、射流压力、靶距、切割横移速度等参数对射流切割性能的影响规律.结果表明,在实验给出的工况条件下,磨料流量存在最佳值,在一定范围内切割深度随磨料流量增加而增加,当磨料流量达到一定值后,切割深度随流量增加反而下降;切割深度与射流压力基本呈线性增长关系;随着靶距的增大,切割深度逐渐减小;切割深度随切割速度的增加呈指数衰减趋势.

Experimental study on cutting performance by of ultrahigh pressure abrasive waterjet in submerged environment

With the waterjet cutting system,in the AWJ pressure range from 80 to 240 MPa,the experiments of cutting the rock by abrasive waterjet were done in the submerged environment.Based on the experiments,meaningful result was derived that reveals the relationships between the cutting depth and the cutting parameters of waterjet.The study shows that,in the condition of the experiments,an optimal value exists for the abrasive flux.The cutting depth grows with the abrasive flux in certain range,then decreases when ...