以 1 2mm厚的 0 8Al钢作为母带 ,纯铜作为复合层材料 ,系统地研究了浸渍复合时间、铜液温度及钢带预热温度等工艺参数对铜复合层厚度变化的影响规律·研究结果表明 :随浸渍复合时间的增加 ,复合层的厚度变化经历了凝固生长和回熔两个阶段 ,钢带的预热温度越低 ,铜复合层厚度越厚 ,在通常的铜液过热度 (<1 0 0℃ )范围内 ,铜液温度的变化对复合层的厚度影响不大· The influence of the process parameters such as impregnation time, liquid temperature and strip preheating temperature on the thickness change of copper composite layer was studied systematically by using 12Al steel with 12mm thickness as the master and pure copper as the composite layer material. The results show that with the increase of impregnation time, the thickness of the composite layer undergoes two stages of solidification growth and meltback. The lower the preheating temperature of the steel strip, the thicker the copper composite layer. Under the normal copper liquid superheat degree <100 ℃), the change of copper liquid temperature has little effect on the thickness of the composite layer