Calendered copper foil It is a product made by repeatedly rolling and annealing high-precision copper strip (usually less than 150 microns in thickness) based on the principle of plastic processing. Now let's introduce its knowledge points.

The ductility, bending resistance and conductivity of rolled copper foil are better than Electrolytic copper foil The purity of copper is also higher than that of electrolytic copper foil. Since it is to be used, we should know that it is an indispensable raw material for making printed circuit boards, copper clad boards and lithium-ion batteries. Industrial copper foil can be divided into rolling and electrolysis according to its manufacturing process. Electrolysis is the electrolytic production of copper based on the electrochemical principle. The internal structure of raw foil is vertical acicular crystal structure, and its production cost is low. In fact, this kind of rolled copper foil is mainly formed by the repeated rolling annealing process of copper ingot based on the principle of plastic processing. Its internal structure is lamellar crystal structure, and the rolled copper foil products have good ductility. At present, the rolled copper foil is mainly used for the production of rigid circuit boards, while the rolled copper foil is mainly used for flexible and high-frequency circuit boards.

Calendered copper foil can be used in heat dissipation substrate, graphene film preparation, aerospace, lithium battery, LED, smart car, UAV, wearable electronic products and other industries. Especially flexible, it gets rid of the limitations of traditional circuit plane design. It can arrange circuits in three-dimensional space. The circuit of calendered copper foil is more flexible and has higher technical content. Calendered copper foil is also due to its own flexibility and bending resistance. It becomes the choice for manufacturing flexible printed circuit boards. After understanding, we also found that due to the large scale of investment in calendering copper foil projects, domestic enterprises have not yet fully mastered the core technology patents and key technologies, product research and development and market development are still in the exploratory stage, while few enterprises actually invest in the production of calendering copper foil. Of course, some projects need to be constructed in stages, and some projects may not be implemented. If 50% of the capacity listed in the table can be put into production in 2020, the capacity of domestic rolled copper foil will be close to 23120t. As a manufacturer, there is also good after-sales service. If you buy products, you will provide pre-sales and after-sales services for everyone. You can also see that their product types are diverse, which can meet the needs of different customers. If you think it is good, you should immediately contact and purchase the products that are suitable for you.