SPHC-2钢种总氧和夹杂物控制技术与实践  

Control Technology and Practice of Total Oxygen and Inclusion of SPHC-2 Steel

作　　者：赵亚飞 李洪波 高振伟 孟凡超 ZHAO Yafei;LI Hongbo;GAO Zhenwei;MENG Fanchao(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4期81-84,共4页Gansu Metallurgy

摘　　要：钢中氧含量及夹杂物含量超标会严重降低热轧卷板表面质量,影响加工性能及钢板表面质量等。研究了炉渣碱度、软吹时间、连铸保护浇注等项目以及对T[O]主要影响以及精炼过程夹杂物的演变,通过一系列管控措施有效降低了钢水氧含量,控制了夹杂物,使得夹杂物符合A、B、C、D各类夹杂物≤1.0要求的比例由91.04%提高到98.69%,从而提升了SPHC-2钢种钢水纯净度,满足客户高品质家电面板用钢使用的技术要求。Excessive oxygen content and inclusion content in steel can seriously reduce the surface quality of hot rolled coil,and affect the machining performance and surface quality of steel plate.The main influence on T[O]and the evolution of inclusions in refining process are analyzed.Through the implementation of a series of control measures,the oxygen content of molten steel in the production process is effectively reduced and the inclusions are controlled.The proportion of inclusions that meet the requirements of inclusions A,B,C and D≤1.0 is increased from 91.04%to 98.69%,thus improving the purity of SPHC-2 steel,and meeting the technical requirements of customers for the use of high-quality household appliance panel steel.

关 键 词：SPHC-2钢种 T[O]和夹杂物 钢水纯净度 夹杂物的演变 

分 类 号：TG142.13[一般工业技术—材料科学与工程]