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控制铁、硅污染是提高铝箔坯料质量的重要措施之一。铝熔铸过程中的杂质硅、A12O。等的混人，是高温熔融铝液与耐火材料的润湿性反应和渗透造成的。从耐火材料选择方面提出了污染机理和防冶的措施。
Control of iron and silicon pollution is to improve the quality of aluminum foil blank one of the important measures. Aluminum casting process of silicon impurities, A12O. Etc., is caused by the wetting reaction and infiltration of high-temperature molten aluminum liquid and refractory material. Pollution mechanism and anti-metallurgical measures are put forward from the aspects of refractories selection.