Automatic ultrasonic cleaning machine is a branch of ultrasonic cleaning machine, which can be used for pretreatment of phosphating treatment of metal surface. The so-called phosphating refers to the method of forming a stable insoluble phosphating film on the surface of metal workpieces after treatment with an acidic solution containing sodium dihydrogen phosphate. The resulting film is called phosphating film. The main purpose of phosphating film is to increase the adhesion of the film and improve the corrosion resistance of the coating. If the traditional process is used to treat the workpiece with acid, it will cause serious environmental pollution and bad working environment. At the same time, the disadvantage is that it is difficult to clean the residual acid after pickling and derusting the parts with complex structure. After the workpiece is sprayed for a period of time, corrosion occurs along the gap, damaging the coating surface and seriously affecting the appearance and internal quality of the product. Therefore, the improved process is degreasing, water washing, ultrasonic derusting, water washing, surface conditioning, phosphating, ultrasonic rinsing and drying. Two sets of ultrasonic cleaning equipment are added to the process. The rust removal by hydrochloric acid is changed to ultrasonic rust removal by phosphoric acid as the medium, and the water washing before drying is changed to ultrasonic rinsing.

全自动超声波清洗机技术应用于涂装前处理，具有以下优点：，超声波清洁工件表面将达到非常均匀和清洁的效果。利用超声波清洗机的工作原理，可使清洗液中的气泡均匀破碎，使清洗均匀。其次，它不会损坏高精度的表面。如采用水基工业清洗剂代替传统的强酸强碱，避免了强酸强碱和有机溶剂对环境的污染，符合要求。超声波清洗还可以有效减少有毒溶剂造成的污染和人身伤害。再次可自动清洗，无需人工重新刷涂，很好地避免了人工清洗过程中的人为损坏和工作场所脏污。清洗后，使用磷酸盐可以更好地提高耐腐蚀性，改善基材与涂层或其他有机饰面层之间的附着力，并清洁表面，这可以很好地改善材料的冷加工性能，如拉丝、拉管、挤压，提高表面摩擦性能，促进其滑动。

The application of full-automatic ultrasonic cleaning machine technology to coating pretreatment has the following advantages: first, ultrasonic cleaning of the workpiece surface will achieve a very uniform and clean effect. Using the working principle of the ultrasonic cleaning machine, the bubbles in the cleaning liquid can be uniformly broken and the cleaning is uniform. Second, it does not damage the high-precision surface. If water-based industrial cleaning agent is used instead of traditional strong acid and strong alkali, the environmental pollution caused by strong acid and strong alkali and organic solvent is avoided, which meets the environmental protection requirements. Ultrasonic cleaning can also effectively reduce pollution and personal injury caused by toxic solvents. It can be automatically cleaned again, without manual re brushing, which can well avoid artificial damage and dirty work place during manual cleaning. After cleaning, the use of phosphate can better improve the corrosion resistance, improve the adhesion between the substrate and the coating or other organic finishing layers, and clean the surface. This can well improve the cold processing performance of the material, such as wire drawing, pipe drawing and extrusion, improve the surface friction performance and promote its sliding.

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