The standard scale of rolled Pure Copper Foil is (0.05～0.010) mm (thickness) × (40～600) mm (width), and the length is generally not less than 5000mm when supplied in coils. The conditions are soft and hard, and most of them are hard. Its characteristics are: fine arrangement, uniform function; high surface finish, good public service; single minimum thickness and width are restricted. Rolled copper foil can be divided into oxygen-free copper foil for electron tubes, oxygen-free copper foil and red copper foil according to chemical composition, and corrosion-resistant alloy copper foil with trace elements and heat-resistant alloy copper foil are added. Pure copper foil is mainly used for flexible printed circuit boards, cardboard circuit printed boards, electromagnetic shielding tapes, composite flat cables, windings and layer electrodes of lithium batteries. Corrosion-resistant alloy copper foil and heat-resistant alloy copper foil are mostly used for radiators, gaskets, brake pads, etc. With the miniaturization of electrical and electronic components, the application range of copper and copper alloy foil will be wider.
Pure Copper Foil(copper foil): a kind of cationic electrolytic material, a thin, continuous metal foil deposited on the base layer of the circuit board, which acts as the conductor of the PCB. It easily adheres to the insulating layer, accepts the printed protective layer, and forms a circuit pattern after corrosion. Copper mirror test (copper mirror test): a flux corrosion test, using a vacuum deposition film on the glass plate. Copper foil is made of copper and a certain proportion of other metals. Copper foil generally has 90 foil and 88 foil, that is, the copper content is 90% and 88%, and the size is 16*16cm. Copper foil is the most widely used. Decorative materials. Such as: hotels, temples, Buddha statues, golden signs, tile mosaics, crafts.Pure Copper Foil is your good choice.
