Maintenance of nozzles during the coating pre-treatment process
1 Causes of nozzle failure 1.1 Erosion. When the high flow rate of liquid passing through the nozzle hole at the metal surface, it will produce erosion of the nozzle hole, resulting in lower nozzle pressure, spray state becomes irregular. The chance of erosion of the nozzle depends on the hardness of the liquid, spray pressure,…