The request for the water jet nozzle during the water jet cutting
In water jet cutting, materials are separated using a high-pressure water jet. Usually, the pressure of between 1000 and 4000 bar is used, but it is also needed depending on the consistency of the material to be cut then increase the pressure up to 6200 bar. The pressure exerted on the surface of the workpiece determines the depth of the cut. However, under the pressure of 600 bars that have no materials can be removed. The depth of the cut increases linearly with the pressure. The diameter of the water jet nozzle used must be selected in proportion to the cutting depth, which means the cutting depth is deeper and the water jet cutting nozzle diameter needs bigger.?And the distance between the nozzles must be inversely proportional.
?Generally, the water flow outlet speed is 900 to 1000 m/s. The waterjet nozzle diameter is proportional to the cutting depth. An advantage of this process, which is gentle on the material, is that it generates only a little heat. In pure water jet cutting, only water is used for cutting. The final result is determined by the parameters to pump pressure, nozzle distance, nozzle diameter, and feed speed. The choice of these parameters determines the energy input directly at the point of action and thus also the quality of the surface and the achieved productivity of the cut. Abrasive water jet cutting is used for harder materials. An abrasive agent is also added here, which requires further parameters in the process such as focus nozzle diameter, focus nozzle length, abrasive hardness, abrasive grain size, and water mass flow. The joint becomes wider as a result, but the separability is increased.
领英推荐
??As the pressure is?high and flow speed is?quick then the tungsten carbide water jet nozzle needs high wear resistance. Or the nozzle hole will be easily bigger and bigger.
? So the water jet nozzle quality and size are very important for the water jet cutting.
If you need or are interested in the water jet nozzles pls contact:
Nancy Xia [email protected]