【作者】 何宇明； 胡兵； 周宏； 王谦； 张慧；

【Author】 He Yuming;Hu Bing;Zhou Hong;Wang Qian;Zhang Hui;Chongqing Iron and Steel Co.,Ltd.;Chongqing University;Beijing Iron and Steel Research Institute;

【机构】 重庆钢铁股份有限公司； 重庆大学； 北京钢铁研究总院；

【摘要】 直弧型连铸机自身特点,生产宽厚板坯时容易出现角部横裂纹,也容易出现角部纵裂纹。通过偏喷嘴,二冷动态配水,大倒角结晶器等技术,板坯温度避开钢的第三脆性区;大倒角结晶器,直弧型连铸机对弧,板坯宽窄面鼓肚预防等技术降低了坯壳所受到的应力,两方面的综合效果使板坯角部裂纹形成的几率明显降低,基本解决板坯角部横裂纹和纵裂纹问题。更多还原

【Abstract】 Straight characteristics arc continuous caster, the production of transverse corner cracks in generous slab of falling, and prone to Angle and longitudinal crack. By partial nozzle, secondary cooling dynamic water distribution, large chamfer mould technology, such as the slab temperature to avoid the third brittle zone of steel; big chamfer mould, straight arc continuous caster of arc, the slab width drum belly prevention technology reduces the stress of the shell is, two aspects of the comprehensive effect to reduce the risk of the slab corner crack formation, basically solved the slab corner transverse cracks and longitudinal crack problem.更多还原