Aluminum foil is widely used in heat transfer, packaging, electronics, construction, household and other fields depending on the application can be divided into many forms, such as household aluminum foil, container foil, air conditioner foil, aluminum foil and other electronics, which is an electronic foil electronic aluminum foil. Aluminum foil for the electronic industry chain: ingots - High purity aluminum ingot - electronic aluminum foil - foil electrode - electrolytic capacitor. Electronic aluminum foil, also known as electrolytic capacitor foil, is used to produce aluminum electrolytic capacitor electrode foil used billet.
Aluminum foil characteristics ----shape
Aluminum foil can be divided according to the shape of a roll of aluminum foil and a sheet of aluminum foil. Most aluminum foil deep processing wool was supplied in roll form, only a few handicraft packaging occasions with a sheet of aluminum foil.
Aluminum foil can be divided according to the state of a hard foil, semi-rigid foil and soft foil.
① hard foil: After rolling without softening treatment (annealing) of aluminum foil, without degreasing, surface Bu there is a residual Shantou. So hard foil printing, laminating, coating must be degreased before, if used for forming can be used directly.
② semi-rigid foil: aluminum foil hardness (or strength) of the aluminum foil rigid foil and soft foil is commonly used for forming.
③ soft foil: After full annealing after rolling and become soft aluminum foil, soft material, the surface is no residual oil. Most applications, such as packaging, composite, electrical materials, use soft foil.
Surface condition
Press the foil surface state can be divided into one side and smooth on both sides of light aluminum foil.
① sided light aluminum foil: doublet rolling of aluminum foil, shiny side of the rear sub-volume, - face black hair, so called side light aluminum foil. Side light foil thickness usually not more than 0.025mm.
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② double-sided light aluminum foil: single rolled aluminum foil, two paintings and roller contact with both sides of the aluminum foil due to the roll surface roughness is divided into different mirror two surface light aluminum foil and a general two surface light aluminum foil. Two faces of the optical thickness of the aluminum foil is generally not less than 0.01mm.