过去20年中,高压水射流技术在许多国家经过不断的研究和发展,已经成为加工各种高硬度材料的新工艺,在大面积清垢、分割和切割等应用领域也取得了举世瞩目的成就。清垢和切割的区别仅在于切削边的质量不同,切割时的切削边质量要比清垢的高。按物理特性,高压水射流技术,应称为高速水射流技术,因为这种工艺的本质不在于它的压力,而在于它是从一个极小直径的喷咀中喷出后产生了超音速的速度。极高的速度产生极强的紊流并在射流射出后在喷咀出口处扩散形成岛形状,由此而能在一个极小距 Over the past 20 years, the high-pressure water jet technology has been continuously researched and developed in many countries and has become a new process for processing various high-hardness materials. It has also made remarkable achievements in such large-scale applications as dirt removal, cutting and cutting . The only difference between dirt removal and cutting is the quality of the cutting edge. The quality of the cutting edge when cutting is higher than that of dirt removal. According to physical characteristics, high-pressure water jet technology should be referred to as high-speed water jet technology, because the essence of this process is not its pressure, but rather it is produced from a very small diameter nozzle after the supersonic speed. Extremely high velocities produce turbulent turbulent flow and diffuse into the island shape at the exit of the jet after the jet emerges,