Commonly used metals in addition to electrolytic degreasing and cleaning methods are required by certain solvents or adjuvants, difficult to recover these solvents or adjuvants are dissolved in water, increase the cost of the metal degreasing, environmental pollution. The micro-nano bubble water uses a purely physical method to peel off the oily ester and oil stains from the metal surface, and the oily bubbles rise to the water surface, and the grease is concentrated on the water surface after rupture. There is no need to add solvents in the whole process, which saves a lot of chemical agents and reduces the environmental pollution of chemical agents. At the same time, the bubbles bring the oil to the water surface, and there is no oil residue in the water. The cleaning water can be recycled and reused, which saves a lot of water and has the characteristics of high efficiency, water saving and environmental protection. |