利用光学显微镜、电子探针等手段分析了磷在双辊连铸磷铜钢薄带中的宏观分布规律.结果表明,磷在双辊连铸薄带中由外到内呈梯度分布,且表面附近的磷浓度远高于名义含量而中心区域的磷浓度却低于名义含量；双辊连铸磷铜薄带经冷轧和退火处理后,表面富磷层并没有消失,磷沿厚度方向的分布形式也没有发生变化.通过理论分析得到,双辊连铸磷铜钢薄带中磷的异常偏析是快速凝固造成的急剧收缩以及轧制力引起的高温变形共同作用所致.
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