Calendered copper foil It is a thin copper material made by compressing and deforming copper billet for many times. be relative to Electrolytic copper foil Calendered copper foil has higher requirements on production process.

First of all, one of the reasons why the production process requirements of calendered copper foil are relatively high is that its preparation process needs to go through multiple processes. Generally speaking, the production process of calendered copper foil includes billet preparation, preheating, rough rolling, intermediate rolling, finishing rolling, annealing, washing, slag removal, cutting and other links. Each link needs accurate control parameters to ensure the quality of the final product. In contrast, the production process of electrolytic copper foil is relatively simple, and only a few processes such as electrolysis, quenching and fine grinding are needed to get the finished product. Therefore, the production process of calendered copper foil is more complex and cumbersome than electrolytic copper foil, and higher requirements naturally arise.

Secondly, the production process of calendered copper foil pays more attention to the purity and composition control of products than electrolytic copper foil. In the process of preparation, the original copper material of rolled copper foil needs to be pretreated through billet preparation, preheating and other links to remove impurities and metallurgical heterogeneity. In addition, the temperature, strength, speed and other parameters need to be accurately controlled during the rolling process. These strict requirements enable the calendered copper foil to achieve extremely high purity and uniformity, thus ensuring its excellent electrical and mechanical properties. In contrast, the preparation process of electrolytic copper foil is much simpler, and its purity and composition control requirements are relatively low.

In addition, the reasons why the production process of calendered copper foil has higher requirements than electrolytic copper foil include the following aspects. First, the rolled copper foil needs to undergo multiple compression deformation, so it needs to have high strength and good plasticity. Secondly, in the process of rolling copper foil, the surface roughness and dimensional accuracy of the product are required to reach a higher level to meet the requirements of different application fields for product quality. Moreover, a series of technical means and measures, such as annealing treatment, washing, slag removal, etc., need to be taken in the process of rolling copper foil to improve the performance and quality of products.

In conclusion, calendered copper foil has higher requirements on production process than electrolytic copper foil. This is mainly reflected in the complex preparation process, accurate control of purity and composition, high mechanical and electrical properties of products, high surface roughness and dimensional accuracy. These strict production process requirements enable calendered copper foil to meet various application requirements in different fields (such as electronics, electrical, communications, etc.).