Yancheng preferred conductive copper foil manufacturer
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.
Yancheng preferred conductive copper foil manufacturer
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.
Yancheng preferred conductive copper foil manufacturer
The copper foil industry belongs to the copper processing industry, which processes copper into extremely thin copper strips or sheets by means of rolling, electrolysis and sputtering, and further applies them as industrial raw materials in various downstream products. The thickness of μ Below m, the thickness varies depending on the scene used.
Yancheng preferred conductive copper foil manufacturer
Surface passivation: chromate (or chromate and zinc salt) solution is used for surface passivation (i.e. anti oxidation treatment) after the barrier layer is plated to form a complex film with chromium (or chromium zinc) as the main body on the surface, so that the copper foil will not be oxidized and discolored due to direct contact with air, and at the same time, the heat resistance of the copper foil is improved (higher zinc content, better heat resistance), The storage period of copper foil can reach 3 months.
Yancheng preferred conductive copper foil manufacturer
With electrolytic copper or wire return material of equal purity as raw material, it is dissolved in the solution containing copper sulfate. Electrolysis is carried out in an electrolytic cell with insoluble material as anode and cathode roller immersed in copper sulfate electrolyte at constant speed as cathode. Copper in the solution is deposited on the surface of cathode roller to form copper foil. The thickness is controlled by cathode current density and cathode roller speed. After the roller rotates out of the liquid level, it is continuously stripped from the cathode roll, washed, dried and rolled to generate the original foil.
Yancheng preferred conductive copper foil manufacturer
The surface of the copper foil shall be smooth and clean without obvious wrinkles, oxidation spots, scratches, pitting, pits and stains. The porosity of 305g/m2 and above is required to be 300ram × No more than 8 penetration points within 300mm area; The total area of pores on an area of 0.5m2 shall not exceed the circular area with a diameter of 0.125mm.
