Knowledge

The electronic aluminum foil is an aluminum foil processed by a series of calendering, cleaning and cutting processes on a high-purity aluminum ingot, and is a raw material for producing an electrode foil. The electronic aluminum foil is a high-purity aluminum foil which is obtained by hot-rolling a fine aluminum (high-purity aluminum) aluminum ingot into an aluminum sheet, and further cold rolling and annealing. The specific production process of the electronic aluminum foil includes: melting casting - soaking - hot rolling - pre-annealing - cold rolling - intermediate annealing - cold rolling - foil rolling - slitting - performance testing - packaging.

Common alloys for electronic aluminum foil:

The main products of electronic aluminum foil are 1xxx and 3xxx aluminum alloy coils, and electronic aluminum foil is mainly used in electronic components and other fields.

1070 aluminum foil: 1070 aluminum foil, high plasticity, corrosion resistance, good electrical conductivity and thermal conductivity.

1100 aluminum foil: 1100 aluminum foil has complete specifications, with food grade, clean oil, less pinholes, good product plate shape, and no deformation. Widely used in aluminum gaskets, aluminum caps, aluminum composite panels and other fields.

3003 aluminum foil: 3003 aluminum foil has many advantages such as food grade, clean oil removal, less pinholes, good product plate shape, no deformation, and easy to fall off. Products are widely used in electronic foil, container foil, aluminum honeycomb core, lunch box materials, electrolytic capacitors and other fields

Electronic aluminum foil is widely used in capacitors. Capacitors can be divided into three categories: aluminum electrolytic capacitors, ceramic capacitors and film capacitors. Among them, aluminum electrolytic capacitors are the most widely used varieties of all electronic capacitor products. The rapid development of China's capacitor manufacturing industry has led to an increasing demand for electronic aluminum foil. Due to the high difficulty in the production of electronic aluminum foil required for the manufacture of capacitor anodes, the current domestic supply capacity is still insufficient in the medium and high-end products, but with The supply of domestic aluminum foil products has been increasing, and this situation has changed significantly.

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