低碳铝镇静钢SPHC-2浸入式水口堵塞原因及预防措施  

Causes and Preventive Measures of Submerged Nozzle Blockage of Low Carbon Aluminum Killed Steel SPHC-2

作　　者：赵亚飞 李洪波 任志鑫 梁仕豪 ZHAO Ya-fei;LI Hong-bo;REN Zhi-xin;LIANG Shi-hao(Wu'an Yuhua Iron and Steel Co.Ltd.,Handan 056300,China;Hebei Cold Forming Steel Technology Innovation Center,Handan 056300,China)

机构地区：[1]武安市裕华钢铁有限公司,河北邯郸056300 [2]河北省冷成型用钢技术创新中心,河北邯郸056300

出　　处：《甘肃冶金》2023年第3期60-62,67,共4页Gansu Metallurgy

摘　　要：裕华钢铁在生产SPHC-2深冲钢时采用吹氩直上工艺,有利于钢厂降低工序成本,但此类钢种在连铸过程中钢水可浇性较差,水口下部堵塞严重,铸坯质量和轧材缺陷突出,综合合格率99.87%,低于国内先进同行,造成企业综合成本升高。须对现有工艺进行调整和优化,提高钢水洁净度,解决钢水可浇性问题,提高产品质量和竞争优势。Yuhua Iron and Steel adopts argon blowing up process in the production of SPHC-2 deep drawing steel,which is conducive to reducing process cost.However,in the continuous casting process of this kind of steel,the pouring ability of molten steel is poor,the lower part of the water mouth is blocked seriously,the casting billet quality and rolling material defects are prominent,the comprehensive pass rate of 99.87%is lower than the domestic advanced counterparts,resulting in higher comprehensive costs for enterprises.It is necessary to adjust and optimize the existing process,improve the cleanliness of molten steel,solve the problem of pouring ability of molten steel,improve product quality and competitive advantage.

关 键 词：深冲钢 直上工艺 水口堵塞 钢水可浇性 钢水洁净度 

分 类 号：TF777[冶金工程—钢铁冶金]