通过对五组材质的金相组织、常规机械性能、高温强度、耐热性能、收缩、裂纹倾向性等的研究,特研制出一种综合性能好的钒钛铬半球半蠕铁素体型铸铁。用这种材质试制高炉镶砖冷却壁并安装在攀钢炼铁厂1号,3号高炉的六段、七段上试用已取得良好的效果。 Based on the study of the metallographic structure, the conventional mechanical properties, the high temperature strength, the heat resistance, the shrinkage and the crack tendency of the five sets of materials, a vanadium-titanium-chromium hemispherical cast iron with a good overall performance is specially developed. With this material trial blast furnace built-in cooling stave and installed in Panzhihua Iron and Steel Works 1, No. 3 blast furnace six sections, seven sections on the trial has achieved good results.