Shaoguan copper foil processing
Excellent tensile strength and elongation High tensile strength and elongation under normal conditions can improve processing ability, enhance rigidity and avoid wrinkles to improve production qualification rate. High temperature extensibility (THE) copper foil and high tensile strength copper foil at high temperature can improve the thermal stability of printed boards and avoid deformation and warpage.
Shaoguan copper foil processing
Copper foil is not a traditional metal copper product. It combines design concepts such as composite material and nano material technology, and different internal microstructures, resulting in different properties from traditional pure copper. The application of copper foil mainly focuses on the characteristics of conduction, heat conduction and electromagnetic wave shielding.
Shaoguan copper foil processing
The air supply of general air conditioning has a large impact. For the stains caused by the dirty electrolyte, the filtering of electrolyte should be strengthened. After being transferred from the electrolytic cell, the copper foil must be washed with electrolyte, because the surface of the copper foil is attached with organic matter or other impurities. The water pressure of copper foil washing must have enough pressure and a certain amount of water.
Shaoguan copper foil processing
Copper clad laminate is the base plate for manufacturing PCB, which is an important type with large amount of materials. The manufacturing process of copper clad laminate is to impregnate glass fiber cloth, glass fiber mat, paper and other reinforcement materials with epoxy resin, phenolic resin and other adhesives, dry them to the first stage at appropriate temperature, obtain pre impregnating materials (referred to as impregnating materials), and then stack them according to process requirements and copper foil, The required copper clad laminate is obtained by heating and pressurizing on the laminator.
Shaoguan copper foil processing
Galvanizing barrier layer: After the rough surface is galvanized, a barrier layer is formed to improve the oxidation resistance of the copper foil in natural air. After galvanizing, the appearance will look gray. After a period of storage, the gray will turn into copper yellow. The more zinc is plated, the more yellow the copper foil will be.
