Zhaoqing Preferred Copper Foil Manufacturer
Calendered copper foil is the original foil made from copper plate by repeated rolling, and then roughened according to requirements. Due to the limitation of processing technology, its width is difficult to meet the requirements of rigid copper clad laminate, so calendered copper foil is rarely used on rigid copper clad laminate; However, because the bending resistance and elastic coefficient are greater than electrolytic copper foil, they are often used on flexible copper clad laminate.
Zhaoqing Preferred Copper Foil Manufacturer
Copper foil can also be divided into: single-sided treatment (single-sided hair), double-sided treatment (double-sided thick), smooth treatment (double-sided hair), double-sided light copper foil (double-sided hair) and very low profile copper foil (VLP copper foil) according to the surface condition. Post copper foil can be divided into electrolytic copper foil and calendered copper foil according to different production methods.
Zhaoqing Preferred Copper Foil Manufacturer
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.
Zhaoqing Preferred Copper Foil Manufacturer
Speaking saliva splashes on the surface, and stains will appear when saliva is rolled up. A short time is a dark point, and a long time is a dark point. The size of the point is related to the saliva splashed on the copper foil.
Zhaoqing Preferred Copper Foil Manufacturer
The calendered copper foil is made by repeated rolling annealing process of copper ingot based on the principle of plastic processing. Its internal structure is lamellar crystal structure, and the product has good ductility. At present, it is mainly used in the production of rigid circuit boards, while the rolled copper foil is mainly used in flexible and high-frequency circuit boards.
Zhaoqing Preferred Copper Foil Manufacturer
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.
