aluminum foil in jumbo roll manufacturer
|type||Industrial aluminum foil|
|application||cable,waterproof,transformer and so on.|
|alloy||8011 1060 1235 8079|
|temper||H112 H24 H18 O|
|width||as your request|
|surface||one side bright,one side matt or both sides bright|
Aluminium Foil For Electrolytic Capacitor
Aluminium electrolytic capacitors are polarized electrolytic capacitors whose anode electrode (+) is made of a pure aluminum foil with an etched surface. The aluminum forms a very thin insulating layer of aluminium oxide by anodization that acts as the dielectric of the capacitor.
The electrode foil made of pure aluminum anode has the characteristics of medium capacitance, uniform surface, less ash powder, low strength, good anti attenuation stability and so on, which is especially suitable for varieties with high stability. The electrode foil is usually prepared by alternating current chemical etching method.
The corrosion mechanism of pure aluminum foil is different from that of aluminum copper foil and aluminum manganese foil. Because there is no copper and manganese added in pure aluminum foil intentionally, the corrosion core of intermetallic compound is less, and the main corrosion core is produced in cold working process Intergranular defect -- dislocation outcrop formed by dislocations on the surface. The aluminum purity of this kind of foil is generally between 99.7% and 99.95%. With the increase of aluminum purity, the corrosion resistance is also improved.
The quality determines the reliability and stability of capacitor quality. As for the negative element aluminum foil, its chemical composition and processing quality greatly affect the quality level of aluminum foil.