检索结果-南通市图书馆

同方期刊数据库

dephosphorization Thermodynamics of Crude Steel Using CaO-Based Flux

在线全文

学校读者我要写书评

暂无评论

Journal of iron and Steel Research international 2003年第3期10卷 10-15页

作者： YANG Yin-dong McKague A R McLean A sommerville i d University of Toronto

The experiments were carried out at 1 175-1 450 ℃ to study the phosphorus distribution ratio between molten Ca O-based slags and carbon saturated hot metal. The phosphate capacity of the slags and the activity coefficient of PO2. 5were calculated from the phosphorus distribution ratio. The effect of addition of Ca F2 and / or Ca Cl2 on the thermodynamic properties of slags was discussed. The correlation of optical basicity with phosphate capacity of slags was studied,and the dephosphorization ability of Ca O-based fluxes with various additives was compared with the results from different studies.

关键词： phosphorus activity coefficient phosphate capacity optical basicity lime-based flux clean steel

Use of Solid State Carbothermic Reduction in Production of Transition Metals and Their Carbides

在线全文

学校读者我要写书评

暂无评论

Journal of iron and Steel Research international 2000年第2期7卷 14-22页

作者： YANG Yin-dong sommerville i d JOHNSTON R F McLEAN A University of Toronto LaTrobe University

The use of solid state carbothermic reduction as a precursor to the smelting of transition metal ores was examined . The advantages of the introduction of a prereduction stage include enabling the more efficient use of fines and the achievement of higher energy efficiencies. A solid state reduction using carbon as the reductant offers a simpler alternative for their treatment. Subsequent treatment of the reduced material could include intensive bath smelting to produce ferroalloys or, in some case, solid state separation of the transition metal carbide where this has commercial significance.

关键词： solid state carbothermic reduction transition metals carbide

development of Mathematical Model of Slag Flow Field and Temperature Field in ESR System

在线全文

学校读者我要写书评

暂无评论

Journal of iron and Steel Research international 2000年第2期7卷 27-31页

作者： YANG Yin-dong sommerville i d JOHNSTON R F McLEAN A University of Toronto LaTrobe University

The heat transfer phenomena and driving forces of slag bath flow in ESR process were analyzed, and the mathematical models in ESR system were reviewed and evaluated. The electromagnetic force is the main driving force for the flow formation in the ESR slag pool, and the temperature difference in the pool creates a convective flow in the system. The shape of the electrode tip has an effect on electromagnetic field distribution in slag pool, thus affects the flow pattern. Finally an improved mathematical model of slag pool flow was proposed.

关键词： ESR electromagnetic force buoyancy force flow field temperature field mathematical model

在线全文

学校读者我要写书评

暂无评论

冶金炉渣硫化能力与成份和温度的关系

钢铁钒钛 1987年第4期 74-80+88页

作者： Sosinsky d.J. ,sommerville i.d. ,徐涛

1.前言渣的碱度,在金属的火法冶炼特别是炼钢和炼铁工艺上是很重要的概念。它的重要性随着日益强调钢质量和要求钢中含有很低的残留元素如氧、氢、硫、磷等而日益提高。尽管如此,直到现在还没有完全满意的、可用来衡量渣碱度的方法。 ... 详细信息

1.前言渣的碱度,在金属的火法冶炼特别是炼钢和炼铁工艺上是很重要的概念。它的重要性随着日益强调钢质量和要求钢中含有很低的残留元素如氧、氢、硫、磷等而日益提高。尽管如此,直到现在还没有完全满意的、可用来衡量渣碱度的方法。传统的衡量渣碱度的方法是用不同的经验碱度指数。在这当中,最有用的是Bell等人提出的指数,或者是用某些过剩

关键词：碳酸化碳化渣碱度等式光学碱度碱度指数金属离子

Effect of Carbon Properties on Melting Behavior of Mold Fluxes for Continuous Casting of Steels

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Journal of iron and Steel Research international 2006年第2期13卷 22-26页

作者： i. d. sommerville A. McLean department of Materials Science and Engineering University of Toronto Toronto M5S-3E4 Ontario Canada

during continuous casting of steel, the properties of mold fluxes strongly affect the casting performance, steel quality and environment of casting operation. The high temperature microscopy technique was used to investigate the melting behaviour of mold fluxes, and drip test method was used to determine their melting rate. The results showed that free carbon is a dominant factor in governing the melting behaviour of fluxes, and the melting rate is increased with increasing carbon reactivity and decreasing carbon content.

关键词： continuous casting carbon reactivity mold flux flux melting rate steel

Fundamental of Slag design for iron and Steel Refining

在线全文

学校读者我要写书评

暂无评论

Fundamental of Slag Design for Iron and Steel Refining

第十八届（2014年）全国炼钢学术会议

作者： Y.d.Yang i.d.sommerville A.McLean department of Materials Science and Engineering University of Toronto

in this paper,the fundamental aspect of oxide melts pertaining to the removal of impurities from hot metal and liquid steel are discussed with particular emphasis on the concepts of slag basicity and slag *** capacities of various species in molten slags are evaluated using the traditional method of empirical ratios to describe slag basicity as well as the relatively new concept of optical *** are provided to illustrate how these concepts can be used to control the behaviour of alkalies in the blast furnace as well as phosphorus,sulphur,water vapour and nitrogen during *** is shown that optical basicity avoids the confusion that can arise from the use of empirical basicity ratios,particularly with regard to the effect of magnesia,and in addition,facilitates the design of slags with appropriate characteristics and properties for the treatment of hot metal and liquid steel.

关键词： Slag capacities dephosphorization desulphurization nitrogen water vapour optical basicity oxide melt steelmaking custom-designed slags.

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

直流电弧冶炼工艺中的电解效应

铁合金 1990年第4期21卷 48-54页

作者： F.L.Kemeny i.d.sommerville A.Mc Lean 李岩 Kemtek金属加工公司多伦多大学

前言在炼钢和精炼中,大多数金属-炉渣反应具有电解特性,渣中组分即使不是全部也是大部分处于离子态,这点已为过去40年来许多研究所确定。目前我们对炉渣结构和性质的认识是牢固地建立在这一概念基础上的。然而对于金属炉渣反应这方面的... 详细信息

前言在炼钢和精炼中,大多数金属-炉渣反应具有电解特性,渣中组分即使不是全部也是大部分处于离子态,这点已为过去40年来许多研究所确定。目前我们对炉渣结构和性质的认识是牢固地建立在这一概念基础上的。然而对于金属炉渣反应这方面的作用还大量被忽略,其主要原因是:为了维持电荷中性,其两半反应必须同时进行,而且发生在同一部位,即在金属-炉渣界面。

关键词：直流电弧炉电解效应炼钢

在线全文

学校读者我要写书评

暂无评论

钢的连铸用保护渣的表征

钢铁 2003年第Z1期38卷 185-188页

作者： E. Wei Y-d. Yang C. Feng i.d. sommerville A. McLean department of Materials Science & Engineering University of Toronto Ontario Canada M5S-3E4 Department of Materials Science & EngineeringUniversity of Toronto Ontario Canada M5S-3E4 Department of Materials Science & EngineeringUniversity of Toronto Ontario Canada M5S-3E4 Department of Materials Science & EngineeringUniversity of Toronto Ontario Canada M5S-3E4 Department of Materials Science & EngineeringUniversity of Toronto Ontario Canada M5S-3E4

在钢的连铸过程中,结晶器保护渣的性质强烈地影响着铸造的行为、钢的质量、以及连铸工艺的环境.本研究采用高温显微技术来研究保护渣的熔化行为,采用液滴测试方法来测定保护渣的熔化速率.结果表明:自由碳是控制保护渣熔化行为的主要因素... 详细信息

在钢的连铸过程中,结晶器保护渣的性质强烈地影响着铸造的行为、钢的质量、以及连铸工艺的环境.本研究采用高温显微技术来研究保护渣的熔化行为,采用液滴测试方法来测定保护渣的熔化速率.结果表明:自由碳是控制保护渣熔化行为的主要因素.熔化速率随碳的反应能力的增加而增加,随着碳含量的减少而增加.

关键词：连铸碳的反应性连铸保护渣保护渣熔化速率钢

利用铝业废渣和副产品作为钢铁工业精炼合成渣

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

钢铁 2003年第Z1期38卷 208-212页

作者： Y.-d. Yang i.d. sommerville A. McLean X. Bi J. Hou dept. Of Materials Science & Engineering University of Toronto Ontario Canada M5S-3E4 Dept. Of Materials Science & Engineering University of Toronto Ontario Canada M5S-3E4 Dept. Of Materials Science & Engineering University of Toronto Ontario Canada M5S-3E4 Dept. of Metallurgy Wuhan University of Science & Technology HuBei China Shandong Aluminum Co. Ltd. Zhibo Shandong China

讨论了利用铝业的废渣和副产品作为钢铁工业的精炼合成渣的可能性和实际结果,介绍了一些将铝业废渣转化为炼钢合成渣的成功工艺,概述了脱硫方面使用铝酸钙为基的合成渣的有关理论.通过合理利用冶金废渣材料,可减少对来自冶金工业的固体... 详细信息

讨论了利用铝业的废渣和副产品作为钢铁工业的精炼合成渣的可能性和实际结果,介绍了一些将铝业废渣转化为炼钢合成渣的成功工艺,概述了脱硫方面使用铝酸钙为基的合成渣的有关理论.通过合理利用冶金废渣材料,可减少对来自冶金工业的固体废渣的总处理量.

关键词：铝业铝酸钙环境铁水脱硫废渣