Tungsten Carbide Hydraulic Sand-blasting Nozzle Abrasion II

There are three types of erosion that micro-cutting, fatigue-wearing and brittle rupture. The micro-cutting abrasion can be divided into two directions of sand movements, one is normal direction and the other is tangential direction If the hardness of the nozzle material is weaker than the hardness of the sand, the particles will hit the inside wall and cut a certain depth by a small angle in the normal direction, and cut at a distance in the tangential direction so that the nozzle inner wall will eventually abrased. Therefore, the inner diameter of the nozzle is expanding.

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