中碳钢保护渣在大断面圆坯连铸机上的应用试验  

Application Test of Medium Carbon Steel Protection Slag in Large Section Round Billet Continuous Caster

作　　者：刘利 闻小德 吕安明 刘超群 石荣民 

机构地区：[1]山钢股份莱芜分公司特钢事业部,山东莱芜271105

出　　处：《山东冶金》2016年第5期36-38,共3页Shandong Metallurgy

摘　　要：为了研究适合莱钢100 t大断面圆坯的中碳钢保护渣,选择3种中碳钢保护渣(A型、B型、C型),在钢水条件几乎相同,结晶器锥度设置和液位设置相同的情况下,在莱钢大圆坯连铸机上进行应用试验并对使用性能进行比较分析。结果表明,A型渣产生的温度分布整体性较好,B型渣的温度分布与C型渣相似,但其低温区域面积较大,热流数据与C型渣相比有所下降;3种保护渣吨钢消耗、熔融层厚度、对水口的侵蚀以及对钢种质量的影响相当。A型保护渣使用性能最好。大圆坯连铸浇注中碳钢应选择碱度适中、黏度大、熔化温度高的保护渣。In order to research the slag for the large section round billet of steel with 100 t capacity in Laiwu Steel, this paper chooses three carbon steel protecting slag （type A, type B, type C）. Keep nearly the same conditions of molten steel, crystallization tapers set and level set the same, the application test in the Laiwu steel round billet continuous casting machine and the comparative analysis on the use of performance were carried out. The results show that the slag of type A on temperature distribution overall is good. Type B slag temperature distribution is similar to that of type C slag. But the low temperature area of type B slag is larger, the heat flow data is decreased compared with that of the type C slag. The three kinds of protective slag have same influence on the consumption per ton steel, melting layer thickness, the nozzle erosion and steel quality. The usage performance of the type A protective slag is the best. The protective slag with moderate basicity, higher viscosity and higher melting temperature should chosen for the carbon steel round bloom continuous casting.

关 键 词：中碳钢 圆坯连铸 保护渣 使用性能 黏度 

分 类 号：TF777[冶金工程—钢铁冶金]