Tungsten Carbide Nozzle Lifespan Improving IV

The entrance angle of nozzle affects inner flow path abrasion directly. When the convergent angle of entrance is narrowing, the rate of wear will increase linearly. In addition, the bumps on the inner wall surface of the nozzle will also have a greater impact resistance against the sand-blasting, which expands the cracks on the surface and accelerates the abrasion of nozzle. Therefore, enhancing the fineness of inner wall can decrease the abrasion to some degree. Nowadays, many new materials appeared in succession, such as complex carbide, whose density and hardness is as good as tungsten carbide, but its lifespan is several ten times longer than tungsten carbide.















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