Reasons for High Energy Consumption and High Pollution in Aluminum Profile Industry

[China Aluminum Industry Network] 1 Smelting and recycling: At present, the electric furnace in the aluminum smelting furnace accounts for 5%, the oil furnace accounts for 91%, and the gas furnace accounts for 4%, resulting in the fuel consumption of re-melting and producing 1 ton of extruded round ingots compared with that of industrial developed countries. It is 55.17% higher, while the actual smelting energy consumption of actual ingots (rolled slabs and extruded round bars) is much higher than that of industrially developed countries. In addition, the overall energy consumption of aluminum smelting furnaces is still at a medium to low level.

2 Casting, rolling and extrusion: lack of high-grade products; small machine tables, extrusion equipment, backward, low efficiency; low degree of automation equipment, can not achieve isothermal rapid extrusion, production of precision profiles; mold quality is poor.

3 Surface treatment: Surface treatment is a process of high power consumption, high water consumption, and high pollution in aluminum processing.

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