[China Aluminum Network] Compared to traditional primary processing aluminum ingots, the production of high-purity aluminum has higher product added value and profit margins. High-purity aluminum refers to aluminum with an Al content of ≥99.999% (5N). High purity aluminum has many excellent properties and is widely used. It has better conductivity, ductility, reflectivity and corrosion resistance than primary aluminum, and has a wide range of uses in the electronics industry, aerospace and other fields. In the electronics industry, it is used to make aluminum foils for high-voltage capacitors, high-performance wires, and bonding wires for integrated circuits; in the aerospace industry, high-purity aluminum is used to develop and produce plasma sails (to promote the relatively new power of spacecraft); high-speed rail transportation In addition to high-speed rail vehicles, high-purity aluminum vehicles are required to prepare high-performance alloys, and because high-purity aluminum has the characteristics of low magnetic permeability and light weight, it has been widely applied in magnetic suspension materials; in optical applications, the automotive industry Reflection reflectors for lights, astronomical telescopes and other aluminum reflectors are widely used, and high-purity aluminum is also being used abroad as a reflective surface for large-scale astronomical telescopes. With the further recognition and development of the properties of high-purity aluminum, the application prospect of high-purity aluminum is more and more broad.
The internationally mature purification technology consists of three layers of liquid electrolysis and segregation. The three-layer liquid method is now widely used, but compared with the segregation method, the latter has the advantages of power saving, low energy consumption, and environmental protection, and can save 6,000 degrees per ton. Moreover, the segregation method uses physical methods. No other additive substances are involved in the entire process, and no special additional energy is required to promote the solidification and segregation processes. In addition to the gases and dust generated by the aluminum smelting itself, no toxic substances are produced during the production process. Harmful substances, in line with the requirements of environmental protection production.
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