铜-钢反向凝固复合带的实验研究

Copper Clad Steel Coil Produced by Inversion Casting

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 effect of immersion time, preheating temperature of the matrix steel coil and temperature of liquid copper on the thickness of copper clad layer of copper clad steel coil was investigated systematically. The matix coil was steel and 1 2?mm thick. It is shown that the thickness of copper clad layer forms through solidification growth stage and remelting stage sequentially. The thickness of the layer firstly increase and then decreases with the immersion time. The lower the preheating temperature of the steel,the thicker the thickness of the copper clad layer. Within the ordinary superheat range of liquid copper(<100?℃),the temperature of liquid copper has little effect on the thickness of the copper clad layer.