宝钢纯净钢生产技术的进步

论述了钢中碳、氮、氧、磷、硫以及夹杂物控制方面的技术进步，讨论了IF钢、管线钢所达到的纯净度纵使水平。     

氢在Q960纯净钢中的扩散

用电化学氢渗透方法研究高强度纯净钢Q960中氢陷阱、氢渗透温度和试样厚度对氢扩散系数的影响. 研究结果表明: Q960纯净钢中的氢陷阱延长氢原子的穿透时间, 同时降低氢在钢中的扩散系数, 而可逆氢陷阱对氢扩散系数的影响大于不可逆氢陷阱; 氢在Q960纯净钢中的表观扩散激活能为26 056 J/mol; 氢在Q960纯净钢中的扩散系数与试样厚度无关.     

清澈纯净贝加尔湖

它是世界上最古老、最纯净、最深、最与众不同的湖：贝加尔湖。它地处亚洲的中心，有着独特的生态系统，那里生长着透明的鱼和能在淡水中生活的海豹。     

纯净钢及其有害杂质元素去除的研究进展

随着人们对钢质量和纯净度要求的不断提升,对钢中有害杂质元素的去除日益迫切。本文简要论述了传统钢中杂质元素硫、磷、氢、氮和有色金属杂质元素铜、砷等的去除研究进展情况。     

饮用水越纯净越好吗

没有一个人愿意喝脏水，这是毫无疑问的。那么，为了人体的健康，我们喝的水是不是越纯净越好呢？     

纯净碳化钨的制备及其催化活性

通过优化钨和碳的比例,利用间歇微波加热法首次合成了纯净的纳米碳化钨.电化学测试结果表明,所制备出的纳米碳化钨具有较好的氧还原活性.     

浅谈利用不纯净软钾镁钒制取硫酸钾

根据溶液理论计算不纯净软钾镁钒制取硫酸钾的试验,提出利用不纯净的软钾镁钒制取硫酸钾的工艺方法。     

豫光集团 在革新中走向洁净

我们追寻钻石,只因它的纯净和光芒;我们储蓄黄金,喜欢它的纯度和重量;我们到访豫光集团,是想透视下铅王国的空气纯净度,看看他们是怎样给废旧的材料提纯,怎样维持环境的清新。     

纯净的汽车燃料

使用纯净燃料的公共汽车已开始在澳大利亚首都堪培拉的街头行驶.这种新型燃料是由84.5%的柴油、15%的酒精及0.5%的乳化剂组成的混合体.酒精有食品工业及木材加工业的废料制成;混合体中的乳化剂则是澳大利亚化学家自行研制的,它能克服柴油与酒精不相混溶的难题.     

纯净空气你我做起

随着改革的不断深入，我国的社会和经济正以较高的速度不断向前发展，人们从环境中索取的越来越多，对赖以生存的环境却没有很好地保护。空气污染是环境污染的一个方面，它已经影响了人们的生活、生存和发展。让学生知道保护我们生存的环境是功在当代、利在千秋的大事为此，我们五（2）班开展了为期四周的“纯净空气，你我做起”社会综合实践活动。     

钢铁企业绿色制造运行关键技术研究

为了促进钢铁企业经济效益与可持续发展效益的最大化,基于5层结构的钢铁企业绿色制造运行模式,对其中钢铁产品生命周期主线层的绿色工艺规划和钢铁清洁化生产等关键技术进行研究。重点分析了绿色工艺规划体系结构中的工艺路线、工艺方法、工艺装备、辅助物料以及工艺参数等规划内容,讨论了钢铁生产中高炉炼铁、转炉炼钢、连铸和轧钢4个阶段涉及到的资源消耗和环境影响问题,并提出了相应的解决方案。     

采用石油液化气进行钢液脱氧

在实验室利用石油液化气对钢中氧进行去除。研究结果表明：利用石油液化气对钢液脱氧是可行的,配合 VD 真空冶炼,可用于生产高碳、高质量洁净钢。钢液脱氧时,通入氩气和液化气两者的混合气体的脱氧效果优于单纯通入单一气体,钢中氧含量下降更明显,碳含量增加幅度更低。混合气体对钢液脱氧操作8 min 后,钢中脱氧减慢,氧含量下降不明显。钢液脱氧的起始阶段,钢中碳含量增加较为缓慢,当钢中氧含量降低到一定水平后,钢中碳含量迅速增加。通入氩气,加强了钢液搅拌,在一定程度上抑制钢中氢含量的增加速度,促进了钢中氢的去除。     

中国石油钢管的发展前景展望

在阐述了中国石油钢管产品的发展历程和技术进步的基础上,着重介绍了各主要钢管企业面对石油工业对石油钢管日益严格的技术要求,积极研究开发新产品,指出了中国石油钢管制造行业的广阔发展前景。     

广西建筑钢结构现状调查分析

通过对目前广西钢结构工程、钢结构技术力量以及钢结构企业的调查,介绍广西钢结构现状,并与全国钢结构状况进行了比较,分析了制约广西钢结构发展的因素,并预测今后的发展前景．     

钢铁冶金过程的可视化与仿真

Steel production involves the transfer and transformation of material and energy at different levels, structures, and scales, and this process incurs substantial information in the material and energy dimensions. Given the black-box feature of iron and steel production processes, process visualization plays an important role and inevitably benefits parameter correction, technical support decision-making, personnel training, and other aspects of the steel metallurgy industry. The technological characteristics of the entire process in the steel industry were analyzed in this study, a visualization technology route based on virtual reality (VR) was built, and the important components of visual simulation system for steel industry and the important technical points needed to realize the system were proposed. On the foundation, a visual simulation model for the process scheduling of the iron and steel enterprise raw materials’ field, slab, and hot rolling processes was built, and a visualization simulation platform of the iron and steel metallurgy plant-wide process, including ironmaking, steelmaking, hot rolling, and cold rolling, was developed. Lastly, the effectiveness of platform was illustrated by practical application.     

中国无缝钢管技术装备的发展对策探讨

结合中国无缝钢管技术装备发展的问题,从充分发挥现有先进装备的特长和作用进行结构调整等方面探讨了中国无缝钢管技术装备的发展对策。     

Visualization and simulation of steel metallurgy processes

Steel production involves the transfer and transformation of material and energy at different levels, structures, and scales, and this process incurs substantial information in the material and energy dimensions. Given the black-box feature of iron and steel production processes, process visualization plays an important role and inevitably benefits parameter correction, technical support decision-making, personnel training, and other aspects of the steel metallurgy industry. The technological characteristics of the entire process in the steel industry were analyzed in this study, a visualization technology route based on virtual reality(VR) was built, and the important components of visual simulation system for steel industry and the important technical points needed to realize the system were proposed. On the foundation, a visual simulation model for the process scheduling of the iron and steel enterprise raw materials' field, slab, and hot rolling processes was built, and a visualization simulation platform of the iron and steel metallurgy plant-wide process, including ironmaking, steelmaking, hot rolling, and cold rolling, was developed. Lastly, the effectiveness of platform was illustrated by practical application.     

钢结构住宅体系抗震性能

从高层建筑物的钢结构的住宅结构体系的抗震性能的角度着手,建立钢框架、钢框架支撑和钢框架剪力墙的三维立体空间的有限元模型。通过有限元的软件对这3种钢框架模型进行8°的抗震设防下模拟,并分别对其进行模态分析与动力时程的研究分析,根据3种模型的动力时程的顶点位移与层和层之间的位移进行相关对比,指出对钢结构设置支撑和剪力墙,来完善高层的钢结构的住宅结构体系的抗震性能,从而提高建筑物的稳定性和抗震能力。     

欧盟钢铁减排路线图及其启示

 欧盟委员会于2019年底发布《欧洲绿色协议》，提出将在2050年率先实现碳中和。欧盟为此提出了七大绿色行动计划和四大支撑保障措施，并特别针对钢铁行业提出了明确的欧盟钢铁减排路线图。论述了欧盟绿色新政的背景和意义，分析了欧盟各个行业实现碳中和的具体要求，比较了钢铁减排路线图中的具体技术，讨论了欧盟实施减排的政策措施，探讨了其对我国未来的钢铁行业绿色可持续发展的启示。     

Variation and optimization of acid-dissolved aluminum content in stainless steel

As a key step in secondary refining, the deoxidation process in clean stainless steel production is widely researched by many scholars. In this study, vacuum oxygen decarburization (VOD) deoxidation refining in a 40-t electric arc furnace + VOD + ingot casting process was analyzed and optimized on the basis of Al deoxidation of stainless steel and thermodynamic equilibrium reactions between the slag and steel. Under good stirring conditions in VOD, the deoxidation reaction reaches equilibrium rapidly, and the oxygen activity in the bulk steel is controlled by the slag composition and Al content. A basicity of 3–5 and an Al content greater than 0.015wt% in the melt resulted in an oxygen content less than 0.0006wt%. In addition, the dissolved oxygen content decreased slightly when the Al content in the steel was greater than 0.02wt%. Because of the equilibrium of the Si–O reaction between the slag and steel, the activity of SiO₂ will increase while the Si content increases; thus, the Si content should be lowered to enable the formation of a high-basicity slag. A high-basicity, low-Al₂O₃ slag and an increased Si content will reduce the Al consumption caused by SiO₂ reduction.