The change of water jet velocity during waterjet cutting and maintenance of waterjet high voltage generator

The waterjet uses the action of the water jet to cut and crush objects. During the cutting action of the water jet, when the water jet touches the object, its speed will change, but I don’t know what it is. Change the way. And for waterjet, how to maintain its high-pressure generator?
 
    When the pressure in the waterjet reaches a certain height, the water will flow out of the nozzle of the waterjet and hit the object at an ultra-high running speed, thereby impacting it. However, when the impact occurs, it will also cause a sudden change in the jet velocity, resulting in a sudden change in the internal pressure of the water droplet state and the internal stress field of the material at the contact point, and it will destroy the object.
 
    In other words, the water jet droplets of the waterjet and the object interact with each other. When the droplets act on the surface of the object, the jet can only remain flat in the first stage, and free radial movement will occur once it contacts the solid material. . Therefore, the speed of the water jet's water jet changes when it touches an object.
 
    Since the waterjet is a tool with very powerful cutting capabilities, it can be used for cutting various materials. In addition to these important accessories such as sand pipes and nozzles, high-pressure generators are also indispensable in waterjets. An important part missing. To ensure the safety of the water cutting process, the normal operation of the high-pressure generator is one of the conditions, and one of the measures to prevent problems is to pay attention to maintenance.
 
   Specifically, it is necessary to regularly check whether the cooling device of the waterjet high-pressure generator is automatically activated to keep the temperature of the cooling water within the specified range; at the same time, it is necessary to constantly observe the liquid condition and add hydraulic oil in time according to the actual situation. If the high-voltage generator is interfered by dust, it will be damaged, so dust protection devices must be installed in each part to keep it in good working condition.
 
    In addition, it is often necessary to check the oil filter signal light of the high pressure of the water jet, so that its corresponding function can be smoothly played. In short, if there is no problem with the high-voltage generator, the probability of waterjet failure will also be significantly controlled.