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sallen@sure365.com.cn
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About Us
Tianjin Xun'er Technology Co., Ltd
Date: 2025-03-12Read: 8
Electrolytic copper foil, as a functional basic raw material in the electronic manufacturing industry, is known as the "neural network" for electronic product signal and power transmission and communication. It is mainly used in the production of printed circuit boards and lithium batteries. In recent years, with the increasing demand in the lithium-ion battery industry, the amount of copper foil used has surged, and the copper foil industry has developed rapidly.
Electrolytic copper foil is formed by depositing copper ions from the electrolyte onto a smooth rotating stainless steel (or titanium) circular cathode drum,At present, roll cathodes and insoluble anodes are commonly used in China to produce electrolytic copper foil by continuous method.
The process of producing electrolytic copper foil by roller continuous electrolysis mainly includes electrolytic dissolution of copper, electrolyte filtration and purification, electrolytic generation of original foil, roughening treatment, plating with different layers of metal, oxidation prevention treatment, and cutting and packaging.
In the copper foil production process, multiple electromagnetic flow meters are usually used to monitor the electrolyte flow rate at different stages. For example, during the process of injecting electrolyte into the storage tank, an electromagnetic flowmeter can be used to accurately control the injection amount; In the electrolyte circulation filtration system, an electromagnetic flowmeter can be used to monitor the flow rate changes before and after filtration; During the electrolysis process, an electromagnetic flowmeter can be used to monitor the flow rate of the electrolyte in real time to ensure the stability of the electrolysis process and the quality of the copper foil.
Xun'er on-site application case
A copper foil construction project of a certain enterprise in Shanxi needs to replace the flow measuring instruments in the production process with domestic production, involving the copper dissolution (lithium battery) process, high-level sulfuric acid tank copper dissolution tank, sewage circulation pump plate replacement copper dissolution tank point positions; Clean liquid tank device, clean liquid pump clean liquid filter point; The device of the foil making machine, the inlet of the foil making machine, and the point of the anti oxidation tank; The replacement of flow meters at multiple locations includes the copper dissolution (foil) process, high-level sulfuric acid tank copper dissolution tank, sewage circulation pump plate replacement copper dissolution tank point, as well as acid washing process, roughening system, solidification system, blackening system, zinc nickel system, silane system, silane tank inlet (organic corrosion) and other multiple processes. The process is complex and involves a large number of products.
1
Accurately measure the dissolved solution at each stage, ensuring corrosion resistance and stable performance;
2
The output methods of different points should be flexibly matched;
3
Instruments should meet the needs of safety production;
In view of the previous inaccurate measurement and frequent instrument failures of the customer, Xun'er engineers conducted on-site investigations and analyzed the properties of different point media. Based on the properties of the media, corresponding electrodes and liners were equipped with electromagnetic flow meters for different point replacements.
Because the temperature of copper sulfate medium in the customer's pipeline is around 50 ° C, the pipeline temperature will drop to 20 ° C during shutdown and pipeline cleaning, and the temperature change will create negative pressure. The Xun'er team has determined to use precision casting, sanitary grade lining, and steel mesh lining materials for the configuration of electromagnetic flow meters to avoid lining deformation caused by negative pressure in pipelines.
At the same time, to meet the flexible output mode of different points on site, the electromagnetic flowmeter is replaced with an output of 4-20mA, with HART communication, a power supply of 24VDC, and a dedicated 15 meter cable.
The copper foil industry uses high-power equipment on site, and the electromagnetic environment is complex. In response to this working condition, engineers have optimized the design of the electromagnetic converter to ensure that the instrument can meet electromagnetic compatibility, and has the ability to resist electrical fast transients/pulse groups, electrostatic discharge immunity, power frequency magnetic fields, as well as interference caused by changes in the power supply terminal and power supply voltage. In addition,To ensure the safety of the instruments, all instruments adopt explosion-proof design to isolate explosive flames and prevent them in advance.
Due to the recognition of the improvements proposed in the process, our company's 687 electromagnetic flow meters have been adopted by the customer in the new project, and the measurement system has undergone significant improvements with accurate and stable data. The precise measurement data provided by the electromagnetic flowmeter provides a reliable basis for production decision-making, successfully solving the problems of inaccurate measurement and frequent failures encountered when using imported brands, ensuring the smooth progress of the production process. At the same time, it enhances the stability and consistency of the production process, helping enterprises improve product quality and production efficiency.
The customer is very satisfied with the performance and solution of Xun'er products, and has expressed that they will continue to use our company's products in future new factory construction.
Recommended on-site application products
The LDG series electromagnetic flowmeter is a flow measuring instrument specifically designed for measuring corrosive media. Its measuring electrodes can be made of special corrosion-resistant materials, which can effectively resist the erosion of highly corrosive fluids such as copper sulfate.
This flowmeter has a negative pressure resistant structural design, which can withstand the negative pressure inside the pipeline and avoid lining detachment. It is a measuring product used in the copper foil manufacturing industry.
Product Features:
■The measurement error is better than ± 0.5%;
The lower limit of flow velocity is less than 0.3m/s;
Multiple signal output methods are convenient to use and do not require straight pipe installation;
Ultra low network loss, energy saving and consumption reduction.