An aluminum plate-based graining treatment pool

Abstract

The invention discloses a graining pond for an aluminum substrate. The graining pond for the aluminum substrate comprises an electrolytic tank, an electrolyte inlet tube, a water inlet tube and an ampere meter. A liquid outlet tube is arranged on the side wall of the electrolytic tank. A partition is arranged in the middle of the electrolytic tank. A plurality of overflowing holes are formed in the middle section of the partition. A liquid baffle directly facing the middle of the partition is horizontally arranged on the inner wall of a liquid supplementing cavity. The outlet end of the electrolyte inlet tube bends and extends to the bottom of the liquid supplementing cavity. The outlet end of the water inlet tube bends and extends above the liquid supplementing cavity. New electrolyte and water are injected into the liquid supplementing cavity through the electrolyte inlet tube and the water inlet tube correspondingly; in addition, the outlet end of the electrolyte inlet tube extends to the bottom of the liquid supplementing cavity, so that the newly supplemented electrolyte firstly enters an electrolysis cavity through the overflowing holes; and meanwhile, an external water pump is used for pumping out the part, with the fluctuant aluminum ion content, of the electrolyte in the electrolysis cavity through the liquid outlet tube on the side wall of the electrolytic tank, and therefore, it is guaranteed that the aluminum ion level in the electrolysis cavity is maintained in a relatively stable state.

Description

technical field [0001] The invention relates to the field of aluminum plate-based printing, in particular to an aluminum plate-based graining treatment pool. Background technique [0002] In the production process of the aluminum plate-based printing plate, the aluminum plate needs to be electrolytically etched. The electrolyte is a 10g / L hydrochloric acid solution. During the electrolysis process, aluminum ions will continue to be generated. Therefore, it is necessary to add fresh solution without aluminum ions to prevent the concentration of aluminum ions from being too high. The concentration of aluminum ions will affect the quality of the electrolytic grain of the printing plate. The existing method is to directly let off a part of the electrolyte, and then directly add a certain amount of water and hydrochloric acid. The disadvantage is that the concentration of aluminum ions is unstable, and the ion concentration drops significantly after changing the liquid. If the ...

AI Technical Summary

Problems solved by technology

The disadvantage is that the concentration of aluminum ions is unstable, and the ion concentration drops significantly after changing the liquid. If the liquid is not changed, it will grow upwards. Too high or too low aluminum ion concentration is not conducive to electrolysis.

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