磨料浆体射流技术及其切割性能试验研究

提出了在低压下应用磨料浆体射流技术的切割系统,该系统采用了新型的添加剂材料配制浆料,经试验分析,可取代高聚物类添加剂。系统采用一种特殊的高压料罐来传递压力,使浆料与高压传递介质互不掺混,各自独立循环使用。试验研究了低压磨料浆体射流切割不同材料时切割速度与切割深度的关系,对比了不同直径喷嘴的切割能力。对切割比能耗进行了计算与分析,结果显示在同等切割能力下,该种切割技术比能耗小,切割成本低,切割质量好,且使用小直径喷嘴,优势更为明显。

ABRASIVE SUSPENSION JET TECHNOLOGY AND EXPERIMENTAL STUDY ON CUTTING PERFORMANCE

The abrasive suspension jet cutting system at low pressure is presented. In this system, a new type of additive material is adopted in suspension preparation. It has been validated through experiments that this additive material can be used instead of macromolecule polymer. A special high-pressure container is used to transfer the high pressure to the suspension. The suspension is completely separated from medium at high-pressure, and they can be recycled separately. The relation between feed rate and the cut depth is discussed. The cutting abilities of nozzles in different diameter are compared, and the energy consumption rate is analyzed. The results show that the abrasive suspension jet cutting has smaller energy consumption rate, lower cutting cost and better surface quality when compared with the traditional abrasive jet cutting. The advantages are more remarkable when nozzle with smaller diameter is used.