淹没状态下超高压磨料水射流切割实验研究  

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

作　　者：王宗龙[1] 胡寿根[1] 姚文龙[1] 杨升[1] 

机构地区：[1]上海理工大学能源与动力工程工程学院,上海200093

出　　处：《上海理工大学学报》2009年第3期209-212,共4页Journal of University of Shanghai For Science and Technology

基　　金：国家自然科学基金资助项目(50275097);上海市科委资助项目(022912182)

摘　　要：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.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 the flux over the optimal value; the cutting depth increases linearly basically with the increase of waterjet pressure, falls with the rising of standoff distance, and decays exponentially with the increase of cutting speed.

关 键 词：淹没状态 切割性能 磨料水射流 射流参数 

分 类 号：TP69[自动化与计算机技术—控制理论与控制工程]