What Is Electronic Aluminum Foil

The electronic aluminum foil is a kind of aluminum foil processed by a series of rolling, cleaning and cutting processes of high-purity aluminum ingots. It is the key raw material for the production of aluminum electrolytic capacitors.

After the raw material is processed into aluminum foil, it is subjected to surface corrosion treatment and reoxidation treatment, and then wound processing to make capacitors. Electronic aluminum foil refers to the plain aluminum foil, which is the key raw material for the production of aluminum electrolytic capacitors. Due to the sequence of the production process, it is divided into electronic aluminum foil and electrode foil.

Electronic aluminum foil and electrolyte together account for 30%-70% of the raw material cost of aluminum electrolytic capacitors. It can store electrical energy and can be used as the positive and negative electrodes of electrolytic capacitors.

Manufacturing process

Electronic aluminum foil is high-purity aluminum foil, which is made of refined aluminum The specific production process of electronic aluminum foil includes: casting - soaking - hot rolling - pre-annealing - cold rolling - intermediate annealing - cold rolling - foil rolling - slitting - performance testing - packaging.

Electronic aluminum foil can be divided into high voltage anode foil, low voltage anode foil, negative electrode foil, etc. The high-voltage anode foil presents a column-like corrosion surface, the low-voltage anode foil is of a sponge-like corrosion surface, and the anode foil of the medium-voltage section is a of moth-eaten corrosion surface.

The main application of electronic aluminum foil is in capacitors. Capacitors can be divided into three categories: aluminum electrolytic capacitors, ceramic capacitors and film capacitors according to different materials. Among them, aluminum electrolytic capacitors are the most used type of all electronic capacitor products.

The aluminum foil for capacitors includes 1xxx and 3xxx aluminum. Specifically speaking, they are 1070, 1100A and 3003. The common temper is H18 and the thickness is 0.02-0.055 mm. Welcome to leave message below to inquire what you need.