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在实验室条件下 ,用市售碳素钢板作为母带 ,用 0 8Al低碳钢作为复合层材料 ,对反向凝固连铸薄带生产过程中复合层在母带表面的凝固生长规律进行了研究。研究结果表明 ,母带在钢水中的浸渍时间、母带厚度和钢水过热度对复合层厚度有显著影响 ,而且这些工艺参数之间存在交互作用 ;复合层的变化经历了“快速生长”、“平衡相持”和“迅速回熔”三个阶段 ,这三个阶段在复合层厚度 -浸渍时间图上共同组成具有较长平台的反向凝固“∩”形特征曲线 ;较低的钢水温度和较厚的母带有利于增加复合层厚度。
In the laboratory conditions, using commercially available carbon steel as a masterbatch, with 0 8Al low carbon steel as a composite layer material, the reverse solidification continuous casting strip production process of the composite layer on the surface of the solidification of the growth rule the study. The results show that the impregnation time of the masterbatch in the molten steel, the thickness of the masterbatch and the superheat of the molten steel have a significant effect on the thickness of the composite layer, and there is an interaction between these process parameters; the change of the composite layer has undergone rapid growth, Balance stalemate “and” rapid meltback “three stages, these three stages in the composite layer thickness - impregnation time chart together constitute a long platform reverse coagulation” ∩ "-shaped characteristic curve; lower temperature and the molten steel Thick masters help to increase the thickness of the composite layer.