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Protection method and device for cathode roller after grinding and application

A cathode roller and grinder technology, applied in chemical instruments and methods, crystal growth, electrolysis process, etc., can solve the problem of undiscovered cathode roller protection, and achieve the effect of protecting the surface of the cathode roller and isolating the air

Active Publication Date: 2020-06-26
GUANGDONG FINE YUAN SCI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] The applicant searched "roll, polish or abrade, protect" in the EPO, and found no relevant research on the protection of cathode rolls after grinding

Method used

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  • Protection method and device for cathode roller after grinding and application
  • Protection method and device for cathode roller after grinding and application
  • Protection method and device for cathode roller after grinding and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0105] After grinding the cathode roll with a width of 1.4m and a diameter of 2.7m, it is protected.

[0106] After cleaning and drying the cathode roller with pure water, spray copper sulfate solution on the cathode roller with a spraying device.

[0107] See the table below for specific parameters.

[0108] Table 1

[0109]

[0110] The cathode roller of Example 1, after the protective layer is formed, is hoisted into the anode tank, and the copper sulfate electrolyte circulation is started after installation. After the copper sulfate crystals on the surface of the cathode roller are melted, no oxide layer is found on the surface, and the cathode roller is used No quality problems such as color difference were found in the stripped copper foil.

Embodiment 2

[0119] After grinding the cathode roll with a width of 1.4m and a diameter of 2.7m, it is protected.

[0120] After cleaning and drying the cathode roller with pure water, spray copper sulfate solution on the cathode roller with a spraying device.

[0121] See the table below for specific parameters.

[0122] table 3

[0123]

[0124] The cathode roll of embodiment 2, after the protective layer is formed, is hoisted to the anode tank, and after installation, the copper sulfate electrolyte is circulated. After the copper sulfate crystals on the surface of the cathode roll are dissolved into the copper sulfate electrolyte, no oxidation is found on the surface. Layer, using the copper foil peeled off from the cathode roller, no quality problems such as color difference were found.

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Abstract

The invention discloses a protection method and device for a cathode roller after grinding and application. The invention belongs to the technical field of electrolytic copper foil production. The method is technically characterized by comprising the following steps: S1, hoisting a cathode roller from a crude foil engine, and moving the cathode roller to a grinding machine for grinding; s2, aftergrinding, pure water is adopted for cleaning, specifically, after the grinding machine finishes grinding the cathode roller, pure water is adopted for cleaning the surface of the cathode roller; s3, after cleaning is stopped, the cathode roller continues to rotate for 1-10 min; s4, a protective layer is constructed on the surface of the cathode roller; S4, after the surface of the cathode roller is blow-dried, a copper sulfate solution is uniformly sprayed on the surface of the cathode roller; s4-2, stopping spraying the copper sulfate solution when the copper sulfate solution exists on the surface of the cathode roller; and S4-3, after copper sulfate crystals are formed on the surface of the cathode roller, the roller surface of the cathode roller is protected. According to the protectionmethod and device for the ground cathode roller and the application, the ground cathode roller surface is protected, and therefore various properties of the electrolytic copper foil are guaranteed.

Description

technical field [0001] The invention relates to the field of electrolytic copper foil production, in particular to a protection method, device and application of a cathode roller after grinding. Background technique [0002] The cathode roller is the core equipment in the production of electrolytic copper foil, also known as the heart of electrolytic copper foil production, and plays a very important role. In the current battery production industry, the requirements for energy storage are getting higher and higher. At the same time, the requirements for copper foil are also getting higher and higher, and the length of copper foil is also getting longer and longer. The surface quality of the cathode roller directly affects the electrolytic copper foil. Surface quality and visual effects. In the copper foil production process, after a certain length of copper foil is produced, the surface of the cathode roller will gradually oxidize. It needs to be polished online to remove th...

Claims

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Application Information

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IPC IPC(8): C30B7/00C30B29/46C25D1/04
CPCC25D1/04C30B7/005C30B29/46
Inventor 温丙台洪远程郑衍年郭志航王俊锋王崇华叶敬敏
Owner GUANGDONG FINE YUAN SCI TECH CO LTD
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