连铸保护渣中碳控制熔化速度的机制  

Mechanism of Controlling Melting Rate by Carbon in Mold Powder for Continuous Casting

作　　者：颜慧成[1] 杨春梅[2] 席常锁[1] 刘志宏[1] 王新月[1] 

机构地区：[1]钢铁研究总院国家连铸技术工程研究中心,北京100081 [2]太原师范学院化学系,山西太原030012

出　　处：《钢铁研究学报》2011年第4期28-31,共4页Journal of Iron and Steel Research

摘　　要：在传统的保护渣熔融结构的基础上,提出了保护渣熔化速度的主要控制因素——积碳层的氧化机制,着重分析了其中自由碳与结合碳的烧损机理,然后对熔渣池的形成与圆、板坯保护渣熔化速度及碳含量差异进行了探讨,对薄板坯保护渣使用情况和熔渣层中碳的影响进行了分析,表明圆坯、板坯、薄板坯保护渣中设计碳含量依次减少。A major effective factor for continuous casting（CC） power melting rate——oxidizing of carbon deposition layer was presented.Based on the traditional model of molten powder,the behavior of free carbon and combined carbon was emphatically analyzed and then two phenomena——formation of power pool and difference of power between round bloom continuous casting and slab continuous casting were discussed.The carbon content of mold powder and utilization in CSP is analyzed.It is showed that the carbon content of round bloom,slab and CSP powder is reduced respectively.

关 键 词：连铸保护渣 熔化速度 积碳层 

分 类 号：TF777[冶金工程—钢铁冶金]