EAF—CSP流程铌微合金化管线钢的连铸工艺  

Continuous casting process of Nb microalloyed pipeline steel

作　　者：苏东 庄汉洲 高吉祥 王进步[2] 李亚平[2] 洪兵雄[2] 沈训良[2] 

机构地区：[1]广钢集团技术中心CSP应用技术研究所 [2]广州珠江钢铁有限责任公司

出　　处：《连铸》2006年第4期8-10,22,共4页Continuous Casting

摘　　要：基于珠钢采用铌微合金化技术成功地开发了管线钢X52和X56的事实,结合CSP薄板坯连铸工艺特点,探索出一套适合含铌钢薄板坯连铸的浇注温度制度、结晶器保护渣、连铸拉速和结晶器热流密度匹配及二次冷却曲线等工艺控制技术。Based on the fact that ZIS succeed in manufacturing X52 and X56 pipeline steel by means of Nb Micro - alloying technology, and combined with the technical characteristic of TSCR, a series of technology to control thin slab continuous casting process for Nb - bearing steel were investigated, such as the schedules of pouring temperature, mold casting powder, matching slab withdrawing rate and heat flux density, and the selection of secondary cooling curve etc.

关 键 词：铌微合金化 连铸工艺 管线钢 结晶器保护渣 工艺控制技术 薄板坯连铸 工艺特点 温度制度 冷却曲线 密度匹配 

分 类 号：TF777[冶金工程—钢铁冶金]