Ferrous Metallurgy. Bulletin of Scientific , Technical and Economic Information最新文献_第7页

Main conditions of rational technological solutions of injection processes for ladle desulphurization of hot metal by various dispersed reagents 各种分散剂在钢包脱硫中喷射工艺的合理工艺方案的主要条件

Ferrous Metallurgy. Bulletin of Scientific , Technical and Economic Information Pub Date : 2018-12-09 DOI: 10.32339/0135-5910-2018-11-13-20

A. F. Shevchenko, I. A. Manachin

{"title":"Main conditions of rational technological solutions of injection processes for ladle desulphurization of hot metal by various dispersed reagents","authors":"A. F. Shevchenko, I. A. Manachin","doi":"10.32339/0135-5910-2018-11-13-20","DOIUrl":"https://doi.org/10.32339/0135-5910-2018-11-13-20","url":null,"abstract":" Application of dispersed reagents in hot metal ladle treatment processes enabled for solving a wide range of tasks of increasing metal products quality and improving technical and economic indices of metal smelting processes. But there are reserves of existing technologies improving, since during their application a whole number of peculiarities of heat- and mass exchange processes, having place in ladle at wide range of parameters and refining conditions, are not taken into consideration. Therefore, elaboration of conceptions about exchange processes mechanisms at different reagents injection input and elaboration of most rational technological solutions are rather actual.Influence of chemical and fraction-dispersed content of reagents on hot metal desulphurization processes studied. First priority of CaO and Mg application justified.It was shown, that when using fine powders, particles less 0.08 mm practically do not penetrate into hot metal melt, and when grain reagents (0.2–1.6 mm) are used, their particles can penetrate into hot metal by a depth of 25 mm.It was established that during the injection desulphurization there are conditions and separation of blow-in two-phase stream takes place in near-tuyere zone with division for gas and solid components.During the desulphurization by powder non-magnesium reagents (lime), the powder concentration 40–60 kg/Nm3 in gas justified, usage of reducing agents not from hot metal components (С, Si, Mn), but Al introduced from outside. Besides, it was recommended to introduce evaporating and gas-forming (in the melt) additions into gas and solid phase for additional phase dispersion in the neartuyere zone.During the magnesium mono-injection its application in the form of grains (0.2–1.6 mm) justified and blow-in velocity >80 m/s.The obtained scientific preconditions of hot metal desulphurization efficiency increase by different reagents were checked in industrial conditions. ","PeriodicalId":429631,"journal":{"name":"Ferrous Metallurgy. Bulletin of Scientific , Technical and Economic Information","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123990014","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Peculiarities of silicomanganese smelting technology and its efficiency increase by semi-coke application 硅锰冶炼工艺的特点及应用半焦提高效率

Ferrous Metallurgy. Bulletin of Scientific , Technical and Economic Information Pub Date : 2018-12-09 DOI: 10.32339/0135-5910-2018-11-58-68

N. F. Yakushevich, V. M. Strakhov, O. Volodin, V. V. Slepenkov, I. V. Gorbachenko

{"title":"Peculiarities of silicomanganese smelting technology and its efficiency increase by semi-coke application","authors":"N. F. Yakushevich, V. M. Strakhov, O. Volodin, V. V. Slepenkov, I. V. Gorbachenko","doi":"10.32339/0135-5910-2018-11-58-68","DOIUrl":"https://doi.org/10.32339/0135-5910-2018-11-58-68","url":null,"abstract":". Peculiarities of silicomanganese smelting technology in a shaft ore-reduction furnace considered, a diagram of its bath structure presented, as well as currents distribution, temperature and slag regimes. Manganese and silicon reduction mechanism presented, in which complexes formed in the coke layer are playing a leading role, the complexes being consisted of high-carbon Fe– C–Mn melt drops and included inside them carbon reducing agent small particles. It was shown, that those drops-complexes moving through the slag melt layer results in additional reduction of manganese and silicon from the slag. materials” (ZUM) production application analyzed for silicomanganese smelting from manganese ores concentrates, containing 33–37% Mn. Semi-coke quality indices presented, comparing with traditionally used coke nuts. It was determined that UVF semi-coke considerably exceeds the coke nuts by physical and chemical properties (reaction ability, specific electric resistance, ash content). A calculation of material balances of silicomanganese heats with usage of UVF semi-coke and coke nuts done, advantage of semi-coke application shown even at minimal increase of manganese into metal extraction coefficient (~1%). Theoretical calculations and industrial experience confirmed efficiency of UVF semi-coke of OJSC ZUM production application as a carbon reducing agent at manganese alloys smelting. Longtime industrial tests of semi-coke at ferro-silicomanganese smelting at RKO-25 furnaces of Taraz steel-works, Kazakhstan, and GeoFerroMetal plant, Georgia, showed a high technical and economic efficiency of semi-coke application instead of 50% and 100% coke nuts.","PeriodicalId":429631,"journal":{"name":"Ferrous Metallurgy. Bulletin of Scientific , Technical and Economic Information","volume":"410 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122955721","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Methods of investigation of protective ability of packaging materials containing volatile corrosion inhibitors 含挥发性缓蚀剂包装材料防护能力的研究方法

Ferrous Metallurgy. Bulletin of Scientific , Technical and Economic Information Pub Date : 2018-12-09 DOI: 10.32339/0135-5910-2018-11-77-84

L. Kolyada, E. V. Tarasyuk

引用次数: 5

Optimization of agglomeration burdens by metallugical properties complex Report 2. Optimization of BF burden components by their complex high temperature properties 基于冶金性能复合体的结块负荷优化利用高炉炉料组分复杂的高温特性优化炉料组分

Ferrous Metallurgy. Bulletin of Scientific , Technical and Economic Information Pub Date : 2018-12-08 DOI: 10.32339/0135-5910-2018-11-29-37

A. V. D’yakov, M. Vituschenko, A. Odintsov, V. Kobelev, A. Chernavin, G. A. Nechkin

{"title":"Optimization of agglomeration burdens by metallugical properties complex Report 2. Optimization of BF burden components by their complex high temperature properties","authors":"A. V. D’yakov, M. Vituschenko, A. Odintsov, V. Kobelev, A. Chernavin, G. A. Nechkin","doi":"10.32339/0135-5910-2018-11-29-37","DOIUrl":"https://doi.org/10.32339/0135-5910-2018-11-29-37","url":null,"abstract":"Along with strength characteristics of agglomerated raw materials, its high temperature properties - the degree of reducibility, softening-smelting temperature and melt filterability through coke filling - have a great influence on technological indices of BF process. Knowledge of the properties change regularities is and actual task for through optimization of blast furnace burden composition aimed at BF smelting intensification. Blast furnace burden composition influence on reducibility, temperature interval of softening-smelting, viscosity of intermediate slags, filterability heat products through coke filling and desulphurization ability of intermediate slags studied. Influence of BOF nickel slag additions on complex of high temperature properties of iron ore raw materials estimated. Influence of pellets portion in BF burden on the process of BF slag filtration considered. It was shown, that increase of pellets portion in the burden results in slag filterability through coke filling decrease during the BF burden smelting. A favorable role of BOF nickel slag in agglomeration and blast furnace processes of JSC “ArcelorMittal Temirtau” determined. Analysis of the data obtained showed that Sulphur content in hot metal during slag sinter smelting depends practically only on intermediate slag basicity. Range of main components content in the iron ore raw materials determined, as well as contents of sinter and blast furnace burdens of JSC “ArcelorMittal Temirtau”, having most favorable complex of high temperature properties and to a great extent meeting the requirements to the iron ore raw materials.","PeriodicalId":429631,"journal":{"name":"Ferrous Metallurgy. Bulletin of Scientific , Technical and Economic Information","volume":" 15","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132011922","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Peculiarities of alkaline metals, aluminum, magnesium and cobalt distribution among minerals in iron ore sinter made of oxidized ferruginous quartzites concentrates 氧化含铁石英岩精矿烧结铁矿中碱金属、铝、镁、钴在矿物中的分布特点

Ferrous Metallurgy. Bulletin of Scientific , Technical and Economic Information Pub Date : 2018-11-09 DOI: 10.32339/0135-5910-2018-10-18-26

I. Bersenev

{"title":"Peculiarities of alkaline metals, aluminum, magnesium and cobalt distribution among minerals in iron ore sinter made of oxidized ferruginous quartzites concentrates","authors":"I. Bersenev","doi":"10.32339/0135-5910-2018-10-18-26","DOIUrl":"https://doi.org/10.32339/0135-5910-2018-10-18-26","url":null,"abstract":"The aim of the work was to study the peculiarities and mechanism of migration of the components during the sintering of the oxidized ferruginous quartzites concentrates. As a result, it was determined thatthe silicate vitreous bond (B2= 0,9–1,1; FeO = 17–23 %; SiO2= 35–40 %) concentrates alkaline metals in its structure, MgO = 0,3–6,0 %, Al2O3= 0,2–7,2 %. It was formed at the basis of silicate minerals of the concentrate waste rock. Ore phases contain as an isomorphic impurity MgO (up to 3.0 %), Al2O3(up to 1.0 %), CoO (up to 0.43 %). The flux and iron-containing components of the original raw materials were the sources of magnesium and aluminum, the iron ore concentrate, in which cobalt is a part of magnetite as an isomorphic admixture was the source of cobalt. Fundamental differences in the distribution of elements between the ore phases in the agglomeration of oxidized ferruginous quartzites and non-oxidized (magnetite) were absent, due to the comparable composition of the waste rock and the mechanism of formation and crystallization of the melt.","PeriodicalId":429631,"journal":{"name":"Ferrous Metallurgy. Bulletin of Scientific , Technical and Economic Information","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130143225","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Peculiarities of structure formation of steel carbon wire of perlite class after a combined deformation processing 珍珠岩类碳钢丝复合变形后组织形成的特点

Ferrous Metallurgy. Bulletin of Scientific , Technical and Economic Information Pub Date : 2018-11-09 DOI: 10.32339/0135-5910-2018-10-74-81

M. Polyakova, K. Narasimhan, M. Prasad, K. Pivovarova, A. Gulin, Y. Efimova

{"title":"Peculiarities of structure formation of steel carbon wire of perlite class after a combined deformation processing","authors":"M. Polyakova, K. Narasimhan, M. Prasad, K. Pivovarova, A. Gulin, Y. Efimova","doi":"10.32339/0135-5910-2018-10-74-81","DOIUrl":"https://doi.org/10.32339/0135-5910-2018-10-74-81","url":null,"abstract":"Creation of methods of metals and alloys deformation nanostructuring, which could be adapted into existing industrial plant by their technological parameters and productivity, is one of actual problems to be solved at present by researchers.Description of a wire combined deformation processing bydrawing with bending and twisting presented. Results of metallographic study of high-carbon wire of Stal 70 grade steel indicated specific peculiarities of influence of different kinds of plastic deformation combining on the steel structure. Mechanical tests of the wire after different kinds of combined processing showed, that such a processing provides combination of strength and ductility, typical for a steel with ultrafine grain structure. Using a method of differential scanning calorimetry, the stored energy value and calorimetric peak temperature value of deformed wire made of high-carbon Stal 70 steel determined. It was shown, that the stored energy value and calorimetric peak temperature value are sensitive to technological parameters of combined deformation processing change.","PeriodicalId":429631,"journal":{"name":"Ferrous Metallurgy. Bulletin of Scientific , Technical and Economic Information","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130856251","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Modernization of continuous casting machines with the purpose of increasing of finished product quality 以提高成品质量为目的的连铸机现代化

Ferrous Metallurgy. Bulletin of Scientific , Technical and Economic Information Pub Date : 2018-11-09 DOI: 10.32339/0135-5910-2018-10-50-60

S. Shakhov, D. Shakhov

{"title":"Modernization of continuous casting machines with the purpose of increasing of finished product quality","authors":"S. Shakhov, D. Shakhov","doi":"10.32339/0135-5910-2018-10-50-60","DOIUrl":"https://doi.org/10.32339/0135-5910-2018-10-50-60","url":null,"abstract":"To prevent formation or suppress development of crystallization,shrink and liquating defects different methods of physical impact on setting melt are used. For technology selection in every case economy, efficiencyand ecological norms should be considered first of all.Methods of physical impact on crystallizable billet considered: electro-hydro impulse impact, gas-impulse stirring, modifier input, inoculator input, consumable coolers input, ultrasonic impact, “soft” reduction, electromagnetic stirring (EMS).Due to authors’ opinion, EMS of liquid portion of a CC billet is the most effective method ofactive impact on crystallization process of a CC billet directly during casting resulted in a guarantee possibility to control the process of structure formation. At present in world practice the EMS of liquid metal at CC machines became an integral part of advanced technology of high quality billets obtaining. The requirements increase to products qualityand development of effective methods and means of melts electromagnetic processing resulted in a requirement of obligatory EMS usage when producing products of high quality steels.It was shown, that for a number of CC bullet macrostructure defects, arising from crystallization process, shrinkage and liquating phenomena, which can not be eliminated completely even at optimal CC machinesdesign features and rational technology parameters of CC process, additional methods of physical impact on the liquid metal setting needed. The method to be used depends on the CC technology and existing CC machines equipment.","PeriodicalId":429631,"journal":{"name":"Ferrous Metallurgy. Bulletin of Scientific , Technical and Economic Information","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127455937","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Development of technologies with a purpose of increasing of metallurgical properties of Kachkanar pellets 以提高卡奇卡纳尔球团冶金性能为目的的技术开发

Ferrous Metallurgy. Bulletin of Scientific , Technical and Economic Information Pub Date : 2018-09-25 DOI: 10.32339/0135-5910-2018-9-32-39

B. Yur'ev, V. Dudko

{"title":"Development of technologies with a purpose of increasing of metallurgical properties of Kachkanar pellets","authors":"B. Yur'ev, V. Dudko","doi":"10.32339/0135-5910-2018-9-32-39","DOIUrl":"https://doi.org/10.32339/0135-5910-2018-9-32-39","url":null,"abstract":"A blast furnace technology developed, using equally basicity Kachkanar iron ore raw materials. Research work carried out to study gas media content and pellets basicity influence on their structure and metallurgical properties, as well as basicity and fuel content in the burden influence on metallurgical properties and structure of sinter. It was determined, that usage of low basicity pellets and high basicity sinter with weak rupture during reduction, provide a high gas penetrability in the upper horizons of blast furnace.It was shown, that presence of amphoteric titanium oxides and aluminum in Kachkanar sinter and pellets, as well as decrease of slope angle of the shaft in blast furnace prevents the early sticking of burden materials in the lower horizons of the furnace, that provides smooth burden lowering, high degree of gas reduction potential usage and thus the increase of the furnace productivity as well as coke rate decrease.An analysis of the work to optimize the technology of pellets production of Kachkanar concentrates made. It was determined, that an increase of the pellets quality can be reached as a result of implementation of a technology of their roasting with a partial dissociation of hematite. A complex estimation of metallurgical properties of partially dissociated pellets carried out. It was shown, that the pellets with hematite-magnetite structure, being a result of partial dissociation of hematite, are reduced at higher temperatures, when their intensive swell and rupture at the stage of hematite-into-magnetite transfer do not happen.","PeriodicalId":429631,"journal":{"name":"Ferrous Metallurgy. Bulletin of Scientific , Technical and Economic Information","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132573980","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

V. Development of new powder wires for building-up. A powder wire based on dust of gas cleaning systems of silicomanganese 五、新型堆焊粉末线材的开发。一种基于硅锰气体净化系统粉尘的粉末线

Ferrous Metallurgy. Bulletin of Scientific , Technical and Economic Information Pub Date : 2018-09-25 DOI: 10.32339/0135-5910-2018-9-101-106

N. A. Коzyrev, R. Kryukov, A. Nepomnyaschikh, A. A. Usol’tsev, М. Popova

{"title":"V. Development of new powder wires for building-up. A powder wire based on dust of gas cleaning systems of silicomanganese","authors":"N. A. Коzyrev, R. Kryukov, A. Nepomnyaschikh, A. A. Usol’tsev, М. Popova","doi":"10.32339/0135-5910-2018-9-101-106","DOIUrl":"https://doi.org/10.32339/0135-5910-2018-9-101-106","url":null,"abstract":"A new powder wire developed by using dust of gas cleaning systems of silicomanganese production plant and powder of gas cleaning systems of aluminum production at different proportion of components. As components the following was used: dust of gas cleaning systems of aluminum production plant, % (mas.): 21–46.23 Al2O3; 18–27 F; 8–15 Na2O; 0.4–6 K2O; 0.7–2.3 CaO; 0.5–2.48 Si2O; 2.1–3.27 Fe2O3; 12.5–30.2 Ctotal; 0.07–0.9 MnO; 0.06–0.9 MgO; 0.09–0.19 S; 0.1–0.18 P, and dust of gas cleaning systems of silicomanganese production plant, % (mas.): 2.43 Al2O3; 1.32 Na2O; 5.56 K2O; 6.4 CaO; 29.19 SiO2; 0.137 BaO; 7.54 MgO; 0.23 S; 0.04 P; 1.067 Fe; 27.69 Mn; 2.687 Zn; 3.833 Pb.The building-up was done under a flux, made of slag of silicomanganese plant of Zapadno-Sibirsky steel-works, havin the chemical composition (%, mas.): 6.91–9.62 Al2O3; 22.85–31.70 CaO; 46.46–48.16 SiO2; 0.27–0.81 FeO; 6.48–7.92 MgO; 8.01–8.43 MnO; 0.28–0.76 F; 0.26–0.36 Na2O; 0.62 K2O; 0.15–0.17 S; 0.01 P. The building-up mode selected. Samples wear tests were carried out at machine 2070 СМТ-1. Chemical composition of the built-up metal was determined at spectrometer ДФС-71. The hardness of built-up layers was measured by hardness meter МЕТ-ДУ. The estimation of nonmetallic inclusions was made as per GOST 1778– 70 by optical microscope Olympus GX-51.Quality indices studied and coefficients of manganese recovery at different proportions of components calculated. Statistical processing of the study results was made, statistical curves of influence of component compositions on properties of built-up layer constructed.","PeriodicalId":429631,"journal":{"name":"Ferrous Metallurgy. Bulletin of Scientific , Technical and Economic Information","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123301577","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A systematic approach to development of a technology of reducing smelting of steel 系统地探讨了炼钢还原冶炼技术的发展

Ferrous Metallurgy. Bulletin of Scientific , Technical and Economic Information Pub Date : 2018-09-25 DOI: 10.32339/0135-5910-2018-9-40-47

S. Tleugabulov, E. Tazhiev, B. S. Tleugabulov

引用次数: 0