Ganzhou Preferred Lithium Battery Copper Foil Price
If the rough surface and pinholes appear at the same time when there are stains on the rough surface, it indicates that the stains are caused by the dirty electrolyte, and the dirt is attached to the copper foil in the electrolytic cell. If there are stains on the rough surface, the copper foil is not rough and there are no pinholes, it means that the workshop production environment is dirty, the air contains dust, or other suspended impurities fall on the surface of the copper foil.
Ganzhou Preferred Lithium Battery Copper Foil Price
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.
Ganzhou Preferred Lithium Battery Copper Foil Price
With the development of high-density wiring technology for low profile copper foil multilayer boards, the traditional type cannot meet the needs of manufacturing high-precision printed circuit boards. Therefore, a new generation of copper foils, low profile (LP) and ultra-low profile (VLP), have emerged one after another. Compared with ordinary electrolytic copper foil, LP copper foil has fine crystal (2/zm), equiaxed grains, no columnar crystals, lamellar crystals, flat prisms and low surface roughness.
Ganzhou Preferred Lithium Battery Copper Foil Price
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.
Ganzhou Preferred Lithium Battery Copper Foil Price
The production process of electrolytic copper foil is simple. There are three main processes: solution raw foil, surface treatment and product slitting. The production process seems simple, but it is a production process that integrates electronics, machinery and electrochemistry, and is particularly strict with the production environment. Therefore, the industry does not have a set of standard and universal production equipment and technology, and each manufacturer shows its own ingenuity, which is also an important bottleneck affecting the improvement of domestic production capacity and quality.
