纯净钢生产技术

简要探讨了纯净钢和洁净钢的概念,概述了近20年来国内外主要钢厂生产纯净钢过程中控制钢中杂质元素(主要是C、S、P、N、H、O)的技术进展,为我国纯净钢生产提供了有益的借鉴。     

论纯净钢及其生产技术

详细介绍了纯净钢的生产技术:去碳、去硫、去磷、去氮、去氢、去氧及夹杂物的控制,最后阐述我国纯净钢的生产现状及趋势.     

铁水预处理与纯净钢冶炼(一)

铁水预处理特别是铁水三脱处理技术自获得工业化应用以来，已成为纯净钢冶炼必不可少的最经济工序。综述了国内外铁水深度预处理以及转炉生产纯净钢冶炼工艺的发展现状和部分工业规模生产的操作结果，论述了铁水预处理对纯净钢生产的意义，分析了冶炼纯净钢的铁水深度预处理技术。认为在目前我国调整钢铁产业结构、开发品种、提高质量的关键时期，大力发展和推广铁水深度预处理技术，辅以钢水炉外精炼，必将为钢铁企业扩大纯净钢种冶炼、改善质量、降低成本、提高产品竞争力和附加值发挥巨大作用，带来显著经济效益。     

电弧炉热装铁水生产纯净钢的技术

电弧炉采用热装铁水冶炼纯净钢是目前世界上流行的一种工艺，对于配置EAF、LF、CCM的短流程钢厂来讲，充分发挥EAF的功能，是生产纯净钢的关键。简要介绍了新钢集团电炉厂在生产纯净钢方面的技术。     

纯净钢及其生产工艺的发展

分析了杂质在钢中的行为和引发的钢材缺陷,总结了纯净度对钢材力学性能和使用性能的影响。根据对脱磷工艺的控制,提出了两种纯净钢生产工艺：（１）铁水“三脱”纯净钢生产工艺;（２）钢水精炼纯净钢生产工艺。通过技术比较,铁水“三脱”工艺生产效率高,过程温度损失小,辅畏料和耐火材料消耗低,流程简单,控制容易,冶炼周期短,可用时生产直低Ｐ、Ｎ钢种,适合转炉工厂采用。     

攀钢纯净钢生产实践与探讨

介绍了攀钢纯净钢生产工艺和试验结果,对纯净钢生产的脱磷、脱硫以及氧氢氮的去除工艺进行了分析,建立了以半钢炼钢技术为代表的攀钢纯净钢生产工艺。     

太钢50t电炉纯净钢生产实践

介绍了太钢50t电炉在纯净钢生产方面的实践,阐述了电炉钢生产过程中对P、S、O、N、H等元素以及残余元素的控制措施,分析了太钢50t电炉目前纯净钢控制水平。     

纯净钢的生产及其对策

本文论述了纯净钢的概念和开发研制纯净钢的重要意义，介绍了国内外生产纯净钢的工艺和质量水平，并根据首钢目前的原料条件和炼钢设备情况提出了生产纯净的对策。     

洁净钢生产技术初探

主要论述钢的洁净度与其性能之间的关系,以及近年来国内外主要钢厂生产洁净钢控制钢中杂质元素[C、S、P、N、H、O]技术的进展,为鞍钢纯净钢的生产提供有益的借鉴.     

“转炉＋RH真空处理”冶炼高纯度原料纯铁生产实践及冶炼高纯净钢工艺初探

通过太钢YT0高纯度原料纯铁的生产实践，对“转炉＋RH真空处理”冶炼高纯净钢的生产工艺进行了可行性研究。结果表明，只要对高炉铁水中锰和硫含量进行控制，强化铁水预处理，保证转炉终点较好的碳、氧平衡以及确定真空处理钢液脱氧合适的加铝量，高纯净钢的生产是完全可能的。另外，本方对用铝脱氧镇静钢中夹杂物的形态、数量控制也进行了描述。研究结果对太钢进一步开发高纯净钢必定有一定的指导作用。     

研究洁净钢生产工艺 推进品种钢结构调整

介绍了洁净钢的概念、安钢洁净钢生产平台的建设情况以及目前品种结构下洁净钢的控制水平,对比了国内外先进技术指标,分析了在洁净钢指标和生产上存在的差距.提出了要加大洁净钢的工艺研究力度,推进品种结构的调整和洁净钢规模化生产的速度.     

洁净钢新技术与高品质钢的生产

综述了国内外洁净钢技术的发展与新观点,在工业生产中的定义,生产过程中洁净度的控制,以及高品质钢对钢水洁净度的要求;提出了洁净钢经济洁净度控制与发展策略。     

Low-Cost and Large-Scale Clean Steel Production Technology

As the market demand for clean steel increased,a number of new technologies for clean steel production have been developed in some domestic and foreign steelmaking plants.Based on the existing equipments and technical conditions in the No.1 steelmaking plant of Ansteel,a series of clean steel technologies have been integrated including single bay duplex-dephosphorization in steelmaking control technology,high efficiency desulfurization technology,the control technology for nitrogen content during the whole process,the control technology for hydrogen content in VD,and the systematic control technology for oxygen content.A series of process for all kinds of ultra-low phosphorus,ultra-low sulfur and relative low level of inclusions have been designed in clean steel production.This process include hot metal desulfurization and slag-off,single bay duplex-dephosphorization in BOF,molten steel slag-off,LF processing,VD processing,and continuous casting with protection,then a stable,low-cost and large-scale production process has been formed.Applying this integrative technology,the sum of 5 major elements including phosphorus,sulfur,oxygen,nitrogen,hydrogen is less than 80×10-6 in high alloy steel scale production,and the industrial applications for clean steel technology have been achieved.     

洁净钢中杂质元素的控制

综述了洁净钢中氧，氮，碳，硫，磷，氢等一系列有害元素的控制技术及国内外一些厂家生产这类钢所达到的水平，可为我国洁净钢的生产提供参考。     

Control of Sulfur Content in the Production of Clean Steel in Panzhihua Steel

This article mainly introduced the process of clean steel with different ways in Panzhihua Steel based on high sulfur content hot metal. With the development and application of sulfur control technologies in hot metal pretreatment, converter steel-making and refining processes, Panzhihua Steel had achieved the production of clean steel such as 350km/h steel for high speed railway, electric steel, etc.     

适应市场需求,开发包钢洁净钢生产技术

介绍国内外洁净钢生产技术工艺,结合包钢现有生产工艺就开发洁净钢生产技术的可行性进行粗略分析,提出了生产洁净钢所应采取的技术措施。     

如何建立高效低成本洁净钢平台

 本文根据洁净钢的定义,阐明了建立洁净钢制造平台的重要意义,分析对比以铁水“三脱”预处理为基础的洁净钢生产新流程和以炉外精炼为主体的传统流程的技术指标。讨论了传统洁净钢流程中存在的炼钢回硫、低碳脱磷、脱氧与夹杂物控制和强还原精炼等四项基本矛盾,并讨论其对洁净钢生产成本和能耗的影响。在此基础上提出建立高效低成本洁净钢平台应重点研究解决全量铁水“三脱”预处理、少渣冶炼、高碳出钢和真空碳脱氧以及改变夹杂物上浮方式等四项关键技术。     

Overview:Development of Clean Steel Production at Baosteel

The development of clean steel technology at Baosteel can be dated back to the first production of IF steels and pipeline steels in the early 1990s.Now the technology has gradually covered nearly the whole range of products.This progressive development is introduced in the overview including the levels of cleanliness for some steel grades at Baosteel.The technologies at different processes for the production of clean steel and the removal of some impurity elements in molten steel are also discussed.Suggestions are given on the future research and development of clean steel technology at Baosteel in the aim to keep a sustainable development,which should focus on the basic research,inclusion control and making efficient use of inclusions,as well as stable and reliable low-cost manufacturing technology,removal of harmful residual elements,and the expanding of the technology to stainless steels and special steels.     

洁净钢制备技术的研究现状及发展

介绍了洁净钢制备技术研究现状,包括生产工艺、钢中杂质元素(S、P、O、N、H)的去除和非金属夹杂物的控制,对于洁净钢的未来发展趋势也进行了展望。     

Reviews and Prospects of Clean Steel Production Practices in Ansteel

It summarizes the recognition of clean steel through the reviews the historical development and production practices of clean steel of Ansteel in this paper.The technological characteristic,equipment,controlling capability and new exploratory of clean steel production of Ansteel are introduced.It has also made a new appraisal to the production line of different clean steel from the angle of high efficiency,stabilization and low-cost.The prospects of new production technology of clean steel are introduced at the end of the paper.