H90/钢反向凝固复合层的厚度变化规律

以08Al钢作为母带，H90黄铜作为复合材料，系统地研究了反向凝固复合工艺浸渍复合时间、铜液的温度以及钢带的预热温度和厚度对黄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、平衡相持和回熔3个阶段；铜液温度以及钢带预热温度和厚度变化不改变复合层厚度的变化规律，但对各阶段的持续时间和复合层的厚度有影响；钢带越厚以及铜液的温度和钢带的预热温度越低，复合层的厚度越厚。

Thickness Variation of Cladding Layer in H90/steel by Inversion Solidification Process

The effects of the preheating temperature, the thickness and immersion time of 08A1 steel strip master and the temperature of cladding liquid brass on the thickness of brass cladding layer by inversion solidification process were investigated systematically. The results showed that the thickness variation of the brass cladding layer involved sequentially in solidification growth, equilibrium holding and remelting stages with increasing in immersion time. Variation of temperature of liquid brass as well as preheating temperature and thickness of steel strip did not change the thickness variation pattern of cladding layer, but affected the holding time at individual stages and thickness of the cladding layer. Increase in the thickness and decrease in preheating temperature of steel strip and decrease in temperature of liquid brass could be beneficial to increasing the cladding thickness.