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我国生产加工铝材的传统方法是铝加工厂从电解铝厂购进重15或20公斤的铝锭,经重熔,调配成分、精炼净化,尔后铸成各种形状和规格的锭坯,用于加工各种铝型材。这样,重熔过程中不仅耗费大量的能源、人力和占用设备,且金属大量烧损。重熔一吨铝锭大约耗电150度,烧损金属1.5％左右,如果按目前国内每年生产40万吨铝锭计算,其中40％电解铝毛坯化(即16万吨加工铝材),将节电2400万度,节约金属铝0.24万吨,其直接经济效益和社会效益都是显而易
The traditional method of producing and processing aluminum in our country is that the aluminum processing plant purchases the aluminum ingots weighing 15 or 20 kg from the electrolytic aluminum plant, remelts, mixes the ingredients, purifies and purifies, and later cast ingots of various shapes and specifications are used In the processing of various aluminum. In this way, remelting process not only consume a lot of energy, manpower and occupy equipment, and a lot of metal burning. Remelting an ton of aluminum ingot consumes about 150 degrees, burning 1.5% of the metal, if the current annual domestic production of 400,000 tons of aluminum ingot, of which 40% electrolytic aluminum billet (that is, 160,000 tons of processed aluminum), will Saving 24 million degrees, saving 24,000 tons of aluminum, the direct economic and social benefits are obvious