Tungsten Carbide Hydraulic Sand-blasting Nozzle Abrasion IV

In addition, the particles move at a high speed in tube, which makes intense friction with inner wall and produces a quantity of heat. Although the cooling water takes off a part of heat, it brings about part difference in temperature and stress field, which leads to thermal peeling. What’s more, micro-structure of the inner wall will be spread into water by the rest of heat, and chemical composition has been changed. Therefore, the performance of nozzle is reduced and the abrasion is severer, which called spreading wear.

















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