Tungsten Carbide Porous Nozzle Factors II

In the beginning, tungsten carbide porous nozzle uses the impact of water-flow for rock cracking. After that it depends on the returned flow for scouring the wall and associate with jet-flow pressure, which deepens the hole and increases the volume. Some related experimental statistics show that the growth of aperture will decrease with as time goes by and every type of nozzles are similar, which explains that tungsten carbide porous nozzle aperture is determined by the diameter of hole D and less influenced by quantity of holes. In addition, with the increasing numbers of spraying holes, the roundness of hole will increase. And less holes will make flow disperse and can not connect well, which make it out of round.

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