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Cathode roller chemical polishing solution and polishing method

A technology of chemical polishing and polishing liquid, which is applied in the field of chemical polishing liquid and polishing of titanium cathode rollers, to achieve the effects of saving manpower and material resources, improving anti-adhesion, increasing tensile strength and ductility

Active Publication Date: 2018-12-18
CHANGZHOU UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although online polishing is fast and convenient, since it is carried out on a normal running foil machine, it is difficult to completely repair some damages such as arc spots on the surface of the cathode roller. Therefore, after several times of online polishing on the cathode roller, it must offline polishing

Method used

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  • Cathode roller chemical polishing solution and polishing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Slowly dissolve oxalic acid in deionized water, slowly add an aqueous solution of citric acid under stirring conditions, and then add an aqueous solution of polyvinylpyrrolidone (K30). The concentration of oxalic acid is 50g / L, the concentration of citric acid is 10g / L, and the concentration of polyvinylpyrrolidone (K30) is 0.01g / L. After the titanium plate is cleaned and degreased, it is placed in a chemical polishing solution, soaked for 20 minutes under the condition of stirring the chemical polishing solution at 20°C, and the purpose of polishing the titanium plate can be achieved. The appearance and roughness results of the titanium plates are listed in Table 1.

Embodiment 2

[0018] Slowly dissolve oxalic acid in deionized water, slowly add an aqueous solution of citric acid under stirring conditions, and then add an aqueous solution of polyvinylpyrrolidone (K30). The concentration of oxalic acid was 100 g / L, the concentration of citric acid was 20 g / L, and the concentration of polyvinylpyrrolidone (K30) was 0.1 g / L. After the titanium plate is cleaned and degreased, it is placed in a chemical polishing solution, soaked for 15 minutes under the condition of stirring the chemical polishing solution at 30°C, and the purpose of polishing the titanium plate can be achieved. The appearance and roughness results of the titanium plates are listed in Table 1.

Embodiment 3

[0020] Slowly dissolve oxalic acid in deionized water, slowly add an aqueous solution of citric acid under stirring conditions, and then add an aqueous solution of polyvinylpyrrolidone (K30). The concentration of oxalic acid was 200 g / L, the concentration of citric acid was 30 g / L, and the concentration of polyvinylpyrrolidone (K30) was 0.2 g / L. After the titanium plate is cleaned and degreased, it is placed in a chemical polishing solution, soaked for 10 minutes under the condition of stirring the chemical polishing solution at 40°C, and the purpose of polishing the titanium plate can be achieved. The appearance and roughness results of the titanium plates are listed in Table 1.

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Abstract

The invention belongs to the technical field of electrolytic copper foil production technologies and provides a titanium cathode roller chemical polishing solution and a polishing method. The polishing solution is composed of two kinds of organic acid and a surface active agent. The organic acid refers to oxalic acid with the reducibility concentration being 50-300g / L and citric acid capable of forming a stable complex with metal ions like cupric ions, nickel ions and titanium ions and with the concentration being 10-50g / L. The surface active agent refers to polyvinylpyrrolidone with the concentration being 0.01-0.5g / L. The cathode roller polishing method includes the steps that after a titanium cathode roller is put into the polishing solution after being cleaned and degreased, the rotaryroller is soaked for 10-20 minutes at the temperature of 20-60 DEG C, operation is easy, a mirror surface is formed on the surface of the cathode roller after polishing and manufactured electrolyticcopper foil has the advantages that crystals are fine and compact and stripping is made easy. The titanium cathode roller can meet the requirements of lithium battery copper foil after being repairedby the chemical polishing solution, and the requirements of the copper foil for a printed wiring board can also be met.

Description

technical field [0001] The invention belongs to the technical field of electrolytic copper foil production technology, and in particular relates to a chemical polishing solution and a polishing method for a titanium cathode roller. Background technique [0002] The titanium cathode roll is a key component in the manufacture of electrolytic copper foil. During the production process of the electrolytic copper foil, the surface of the titanium cathode roll is always in a state of change. Due to electrochemical corrosion and mechanical corrosion, the oxide film on the surface of the cathode roller gradually thickens, resulting in poor conductivity of the cathode roller; due to the uneven color of the roller surface, some bright lines are generated, which affects the crystal growth of the copper foil during electrodeposition ; Due to the increasing roughness of the surface of the cathode roller, the electrodeposited crystals of copper ions on the surface of the cathode roller ar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23F3/06
CPCC23F3/06
Inventor 陈智栋吴敏娴王文昌明小强王朋举鲁卫平
Owner CHANGZHOU UNIV
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