内蒙古科技大学
《连铸连轧工艺结课论文》 —保护渣的研究及应用
学生姓名： 学 号： 专 业： 班 级： 指导教师：
目录
1.摘要····················································2 2.关键词··················································2 3.引言····················································2 4.概念····················································2 5. 炼钢连铸工艺流程·······································3 6.连铸结晶器保护渣作用····································3 7. 薄板坯连铸技术的特点及对结晶器保护渣的要求·············3 8. 结晶器保护渣的成分·····································4 9. 薄板坯连铸结晶器保护渣的物理性能及冶金特性·············6 10结晶器保护渣的应用·····································10 11结论··················································11 12.参考文献··············································11
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连铸连轧工艺结课论文
—保护渣的研究及应用
[摘要]：连铸结晶器保护渣对铸坯表面质量具有显著影响。通过对保护渣理化性能、熔化特性的基础研究, 确定了连铸用保护渣的组成及成分范围。确定的保护渣熔化温度, 粘度被实践证明是合理的, 这为保护渣的研究提供了理论依据。通过工业性试验的应用证明所研制的保护渣系能满足薄板坯连铸的需要, 使用效果良好, 为我国连铸用保护渣的配制提供了方向。 [关键词]：连铸；保护渣；结晶器
Class paper of Continuous Steel Casting and rolling process
—Protection slag research and application [Abstract]: Continuous casting crystallizer protection slag on casting surface quality
has significant effect. Based on the physical and chemical properties, protective slag melting characteristics of the basic research, determine the continuous casting with protection slag composition and composition range. Certain protection slag melting temperature, viscosity was proved to be reasonable, this for the protection of slag research provides a theoretical basis. Through the application of industrial test that the developed protection slag system can meet the need of slab continuous casting, the use effect is good, for our country with the preparation of the continuous casting slag protection provided direction.
[Key words]: Continuous Steel Casting；Protection slag；Slag crystallizer
一、引言
作为一项划时代的技术进步【1】，薄板坯连铸技术以其简化生产工序、节能降耗、投资省、成本低、提高铸坯质量和经济效益好等优点而得到迅速发展。目前，世界上各类薄板坯连铸机的生产能力已达3800万t/a。据日本钢铁界人土预测【2】，到2020年连铸薄板坯产量将占连铸坯总产量的45%~60%， 连铸带钢产量将占总产量的10%~15%，而传统连铸机所浇铸的连铸坯产量将仅占连铸坯总产量30%~45%。
薄板坯连铸与常规板坯连铸在设计和工艺上最大的区别是结晶器形状及振动方式，浸入式水口的设计和薄板坯连铸结晶器保护渣的物理性能及化学成分的优化二项关键技术。分析薄板坯连铸技术的发展，结晶器保护渣对稳定薄板坯连铸工艺、扩大薄板坯连铸品种、提高铸坯表而质量和产量以及减轻操作难度有着十分重要的作用。可以说，薄板坯连铸能达到目前的水平是与结晶。器保护渣技术密不可分的。因此，结晶器保护渣技术作为薄板坯连铸技术的重要组成部分，必须下大力量进行开发研究，使之符合薄板坯连铸工艺的要求。
二、概念
（1）连铸：连续铸钢（英文，Continuous Steel Casting）的简称，把钢水直接浇注成形的先进技术。
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连铸连轧工艺结课论文(DOC)
