论文部分内容阅读
建立了求解宽断面板坯结晶器内的钢液流动、传热和凝固数学模型,研究了不同浸入式水口结构、铸坯宽度、铸坯厚度和拉速等工况条件下,宽断面板坯结晶器内的流动、传热和凝固行为。结果表明:随着铸坯的宽度从1 800 mm增加2 200 mm时,从浸入式水口侧孔出来的射流在结晶器下部的影响范围更广;宽断面结晶器中的浸入式水口结构对不同铸坯断面和拉速下的流动和凝固行为产生较大的影响;在生产中需根据宽断面结晶器的流动及传热特点进行水口结构及工艺参数的优化。
The mathematic model of fluid flow, heat transfer and solidification in wide slab mold was established. The effects of different submerged nozzle structures, slab width, slab thickness and casting speed were studied. Mold flow, heat transfer and solidification behavior. The results show that with the increase of slab width from 1 800 mm to 2 200 mm, the jet coming from the side hole of the submerged nozzle has a wider influence on the lower part of the mold. The structure of the submerged nozzle in the wide- The flow and solidification behavior of slab section and casting speed have a great impact. In the production, the structure and process parameters of nozzle should be optimized according to the flow and heat transfer characteristics of wide-section crystallizer.