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铝熔体净化的好坏直接关系到高性能铝材的质量水平。西南铝加工厂为满足市场对３００４铝合金罐材、箔材、航空铝材的质量要求，自行设计、开发双级在线式净化设备（ＤＤＦ）。设备最大处理铝熔体能力为４００ｋｇ／ｍｉｎ。结合生产２８０３８１５ｔ铸锭的实践和熔体净化理论以及国内外的有关文献，论证了ＤＤＦ系统技术指标的先进性、工艺的稳定性和经济的合理性。
The quality of aluminum melt purification is directly related to the quality level of high-performance aluminum. Southwest Aluminum Processing Plant To meet the market’s quality requirements for 3004 aluminum alloy cans, foils and aviation aluminum, it designs and develops two-stage on-line purification equipment (DDF). Equipment maximum capacity of aluminum melt 400kg / min. Combined with the practice of producing 2803815t ingot and the theory of melt purification, as well as the relevant literature at home and abroad, the advanced technical indicators of DDF system, process stability and economic rationality are demonstrated.