Latest products
What is the process of electrolytic degreasing of packaging steel strips?
by：Hongmei
2021-03-15
What is the process of electrolytic degreasing of packaging steel strips?
When the steel strip is soaked and cleaned to remove most of the oil stains, it enters the electrolyte. The electrolyte penetrates between the residual oil stains and the steel belt. When the steel belt is charged, the electrolyte produces electrolysis, generating a large amount of hydrogen and oxygen tiny bubbles, which can remove the oil from the inner layer of the oil stain and the steel belt. The oil film and the steel strip are peeled off the adhesive surface. Even the oily dirt in the very small gaps on the surface of the steel strip is dug out by air bubbles from the inside by the all-permeable electrolyte. After the oil is separated from the steel strip by bubbles, it is easily crimped into fine oil droplets under the action of its own surface tension, and the hydrogen and oxygen bubbles emerging from the surface of the steel strip will stay on these small oil droplets. When the bubble grows to a certain size, its buoyancy is greater than the adhesion force between the oil droplet and the surface of the steel strip, and the bubble will take the oil drop off the surface of the steel strip and enter the degreasing liquid.
It should be noted that the electrolyte for electrolytic degreasing is an aqueous alkaline degreasing agent solution. During the electrolytic degreasing process, the wetting, permeating, dispersing, and solubilizing processes of soaking and cleaning are also carried out. Electrolysis and soaking work together. process.
When the steel strip is soaked and cleaned to remove most of the oil stains, it enters the electrolyte. The electrolyte penetrates between the residual oil stains and the steel belt. When the steel belt is charged, the electrolyte produces electrolysis, generating a large amount of hydrogen and oxygen tiny bubbles, which can remove the oil from the inner layer of the oil stain and the steel belt. The oil film and the steel strip are peeled off the adhesive surface. Even the oily dirt in the very small gaps on the surface of the steel strip is dug out by air bubbles from the inside by the all-permeable electrolyte. After the oil is separated from the steel strip by bubbles, it is easily crimped into fine oil droplets under the action of its own surface tension, and the hydrogen and oxygen bubbles emerging from the surface of the steel strip will stay on these small oil droplets. When the bubble grows to a certain size, its buoyancy is greater than the adhesion force between the oil droplet and the surface of the steel strip, and the bubble will take the oil drop off the surface of the steel strip and enter the degreasing liquid.
It should be noted that the electrolyte for electrolytic degreasing is an aqueous alkaline degreasing agent solution. During the electrolytic degreasing process, the wetting, permeating, dispersing, and solubilizing processes of soaking and cleaning are also carried out. Electrolysis and soaking work together. process.
