Zhenjiang Optimized Ultra thin Copper Foil Processing
With the further competition in the market, even those with high added value have to be controlled from the production cost. Because the production requires very strict cleanliness of its electrolytic solution (copper sulfate solution), many filtration systems and liquid feeding pumps are repeatedly used in previous production processes. A new process flow is provided here, which can fundamentally control product quality and reduce production costs.
Zhenjiang Optimized Ultra thin Copper Foil Processing
Copper foil is an indispensable raw material for making printed circuit board (PCB), copper clad plate (CCL) and lithium-ion battery. For industrial use, it can be divided into calendered copper foil and two categories according to its manufacturing process. Electrolytic copper foil is made by electrolysis of copper based on electrochemical principle. The internal structure of raw foil is vertical acicular crystal structure, and its production cost is relatively low.
Zhenjiang Optimized Ultra thin Copper Foil Processing
The technical feature of electrolytic copper foil is that various technical conditions in electrolyte and additives must be strictly controlled, so equipment alone is not enough to produce high-performance copper foil; High performance has high requirements for the materials of anode plate and cathode roll in the raw foil equipment, the processing accuracy and consistency of the equipment; In the production process, the concentration of copper and acid in the electrolyte needs to be monitored and adjusted in real time.
Zhenjiang Optimized Ultra thin Copper Foil Processing
In order to avoid the copper oxide powder falling off and moving to the substrate, the surface treatment method has also been constantly improved. For example, TW copper foil is coated with a thin layer of zinc on the roughened surface of the copper foil, and the surface is gray; TC type copper foil is coated with a thin layer of copper zinc alloy on the roughened surface of the copper foil. At this time, the surface of the copper foil is golden yellow. After special treatment, the thermal discoloration resistance, oxidation resistance and cyanide resistance of copper foil in PCB manufacturing are improved accordingly.
Zhenjiang Optimized Ultra thin Copper Foil Processing
The copper clad laminate is composed of copper foil, reinforcement material and adhesive. Plates are usually classified according to the reinforcement material category and adhesive category or plate characteristics.
