Aluminum substrate electrolytic cell

Abstract

The invention discloses an aluminum substrate electrolytic cell comprising an electrolytic cell body, an electrolyte inlet pipe, a water inlet pipe and an ampere meter. A liquid outlet pipe is arranged on the side wall of the electrolytic cell body; a partition plate is arranged on the middle portion of the electrolytic cell body; a plurality of overflow holes are formed in the middle segment of the partition plate; a liquid baffle right opposite to the middle portion of the partition plate is horizontally arranged on the inner wall of a liquid supplementing cavity; the outlet end of the electrolyte inlet pipe is bent and extends to the bottom of the liquid supplementing cavity; and the outlet end of the water inlet pipe is bent and extends to the portion above the liquid supplementing cavity. By means of the electrolyte inlet pipe and the water inlet pipe, new electrolytes and water are injected into the liquid supplementing cavity; the outlet end of the electrolyte inlet pipe extends to the bottom of the liquid supplementing cavity, so that the newly-supplemented electrolytes enter an electrolytic cavity firstly through the overflow holes; and meanwhile, an outside water pump pumps out the part, with the aluminum ion content fluctuating, in the electrolytic cavity through the liquid outlet pipe on the side wall of the electrolytic cell body, so that it is guaranteed that the level of aluminum ions in the electrolytic 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 electrolytic cell. 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 liquid...

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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