What are the production processes in the production process of composite copper foil equipment?

The production process of Composite Copper Foil Equipment is a complex and delicate industrial process, covering multiple links from raw material preparation to the final product. Each link is crucial and directly affects the quality and performance of the final product.

Raw material preparation and pretreatment
In the production of composite copper foil, the selection and pretreatment of raw materials are the primary links. High-quality copper foil and substrate (such as polyester film PET, polypropylene PP, etc.) are the basis for ensuring the quality of the final product. At this stage, the copper foil must undergo strict screening and testing to ensure that its key parameters such as thickness, width and surface roughness meet the production standards. At the same time, the pretreatment of the substrate cannot be ignored, including steps such as cleaning and static elimination to promote good bonding between it and the copper foil.

Surface treatment process
Surface treatment plays a key role in the production process of composite copper foil. The surface of the copper foil and the substrate is modified by chemical treatment, physical treatment or a combination of both to improve its wettability, adhesion and corrosion resistance. Common surface treatment techniques include chemical etching, electroplating and spraying. In modern composite copper foil production equipment, these surface treatment processes usually rely on automated production lines to ensure the consistency and stability of the treatment process.

Coating and Lamination Process
The coating process is the process of uniformly coating a specific coating material on the surface of the copper foil or substrate. In the production of composite copper foil, the coating materials usually include conductive glue and resin, etc. These materials not only enhance the bonding between the copper foil and the substrate, but also improve the overall performance of the composite copper foil. After coating, the copper foil and the substrate need to be tightly bonded through a lamination process. During the lamination process, precise control of parameters such as temperature, pressure and time is the key to ensure the tight bonding between the copper foil and the substrate and the uniform distribution of the coating.

Curing and Cooling Process
The curing process involves keeping the laminated composite copper foil at high temperature for a certain period of time to induce a chemical reaction in the coating material to form a stable chemical bond. This process is crucial to improving the heat resistance, corrosion resistance and mechanical strength of the composite copper foil. After curing, the composite copper foil needs to be cooled to reduce the temperature and make it usable.

Testing and quality control
In the production process of composite copper foil, testing and quality control are the core links to ensure product quality. By combining online and offline testing methods, the thickness, width, surface roughness, conductivity and heat resistance of the composite copper foil are strictly tested. At the same time, regular maintenance and calibration of production equipment are also necessary measures to ensure production accuracy and stability.

Winding and packaging
After the above process, the composite copper foil enters the winding and packaging stage. During the winding process, the winding tension and speed need to be accurately controlled to avoid problems such as wrinkles or breaks in the copper foil. The packaging link needs to select appropriate materials and methods to ensure that the composite copper foil is not contaminated or damaged during transportation and storage.