Bauxite is the best raw material for the production of metal aluminum, and its consumption accounts for more than 90% of the world's total bauxite output. Bauxite was first discovered by French geologists in 1821. To produce aluminum from bauxite, it is first necessary to make alumina, and then to make aluminum by electrolysis. The mining of bauxite began in France in 1873, and the production of alumina from bauxite began in 1894, using the Bayer process. By 1900, small amounts of bauxite were mined in countries such as France, Italy and the United States, with annual production of only 90,000 tons.

With the development of modern industry, aluminum as a metal and alloy applied to aviation and military industry, and then expanded to civilian industry, since the aluminum industry has been rapid development, by 2016, the world electrolytic aluminum production has reached more than 57 million tons, in 2016 the mining of bauxite increased to 262 million tons. According to the 2017 data of the US Bureau of Mines, the world's bauxite reserves are 28 billion tons, and the bauxite resources endowed by the earth provide raw materials for the world and China's aluminum industry.

Aluminum tube Aluminum square tube aluminum raw material Aluminum ore smelting is a method of alloying metal. It is a process that changes the metal state by heating, so that the matrix metal and alloying components are melted into a uniform melt according to the required ratio, and make it meet the internal purity, casting temperature and other specific requirements. The quality of melt has a decisive impact on the processing performance and final use performance of aluminum, if the melt quality is congenital deficiency, it will bring potential dangers to the use of products, therefore, melting is a key process that plays a dominant role in the quality of processed products.

The main pollutants of aluminum industrial materials include those produced during the production of alumina

New alloys are constantly being developed by various countries, and the deformed aluminum alloy registered by the American Aluminum Association has reached 680, of which the largest amount is the 6063 aluminum alloy in the aluminum-magnesia-silicon system registered by the American Aluminum Company in 1954.

The main pollutants of aluminum industrial materials include red mud produced in the production process of alumina, fluorine waste gas from electrolytic production, carbon calcination and roasting flue gas, electrolytic cell overhaul waste, aluminum processing waste water waste oil and other industrial waste, these waste slag, waste gas, waste water has always been the key target of environmental monitoring. It is related to occupational health and safety, social, ecological and economic sustainability.

In order to make the aluminum industry continue to develop in the direction of green and low-carbon, the corresponding environmental protection and energy saving equipment has been continuously developed, and strive to improve the overall environmental protection level of the aluminum industry from various aspects such as environmental protection, intelligence and integrated control.

Every aluminum company at home and abroad has made different contributions to the development of the aluminum industry while enjoying the technological and equipment achievements of the world's aluminum industry.

The surface treatment technology of aluminum products has developed very rapidly, and the aluminum alloy products after surface treatment give people a very beautiful and delicate appearance. Chemical conversion film treatment is one of our most common surface treatment technologies. Such as anodic oxidation, composite anodic oxidation, micro arc oxidation, electrophoretic coating, etc., are all chemical conversion film treatments. Chemical conversion film treatment is more mature and stable than other surface technology treatments. But now the use of more is a composite technology, composite technology is a collection of the advantages of various technologies to avoid their shortcomings. Such as arc glow technology, ion beam combined sputtering technology, ion beam combined sputtering technology will be magnetron sputtering and ion injection, ion sputtering combined with fast speed, low temperature, good bonding force and other advantages. There is also the combination of laser and sputtering

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