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连铸工艺中弯月面控制的发展 被引量:1

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摘要 在生产效率和板坯质量方面,连铸工艺中的弯月面控制总是十分重要的.为了掌握弯月面控制的发展方面,本文首先概括介绍早期针对生产效率而采用的弯月面控制技术,进而介绍当前为了提高板坯质量而采用的顶部凹槽的弯月面控制技术.80年代,两项关于生产效率的弯月面控制技术发展起来.一项是结晶器状况监测系统,另一项是高速结晶器调宽技术.至于板坯质量方面,最近我们发展了在结晶器周围加上低频交流电磁场的电磁连铸技术(EMC),并且开展了中间实验和连铸生产规模的应用研究.关于EMC技术在弯月面控制的三方面作用得到证实,即结晶器和凝固坯壳之间的软接触,垂直搅拌,焦耳热使初始凝固阶段能适度冷却.
出处 《钢铁》 CAS CSCD 北大核心 2004年第z1期482-485,共4页 Iron and Steel
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