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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 Zhuzhou Steel has successfully developed pipeline steel X52 and X56 with niobium microalloying technology, combined with the characteristics of CSP thin slab continuous casting process, a set of pouring temperature system suitable for thin slab continuous casting with niobium steel was explored. The mold protection Slag, casting speed and mold heat flux density matching and secondary cooling curve and other process control technology.