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分析了用四辊轧机轧制纯铝板带材表面产生油污的原因;讨论了控制方法.增设二次吹扫装置、控制工艺润滑油的质量和退火温度,可以避免铝板带材表面产生油污“,”The appearance of oil stains on surface of aluminum strips are analysed.The control methods are discussed.The oil stains can be avoided by installing dual blow off unit,increasing oil quality and controlling annealing temperature.