The Experts below are selected from a list of 57 Experts worldwide ranked by ideXlab platform
B. N. Grigor’ev - One of the best experts on this subject based on the ideXlab platform.
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Technogenic mineral formation in refractory materials in the Open-Hearth Process
Refractories and Industrial Ceramics, 2011Co-Authors: A. M. Batanova, T. I. Shchekina, E. N. Gramenitskii, V. P. Grigor’ev, A. N. Pyrikov, B. N. Grigor’evAbstract:A study has been made in a series of researches by authors of the present article of features of the change in phase and chemical composition of magnesia refractory mixes, used in the Hearths of Open-Hearth furnaces and subject to chemical corrosion during their reaction with metallurgical melts. During performance of this work the Hearth wear mechanism was studied during service using for ramming magnesia powder grade PPM-85 (GOST 24862) of domestic production (OAO Kombinat Magnezit). Previously magnesia dolomite mixes grade AnkerHearth [1] and JeHearth grade [2], obtained from overseas enterprises, were studied for this purpose.
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Technogenic mineral formation in refractory materials in the Open-Hearth Process
Refractories and Industrial Ceramics, 2011Co-Authors: A. M. Batanova, T. I. Shchekina, E. N. Gramenitskii, V. P. Grigor’ev, A. N. Pyrikov, B. N. Grigor’evAbstract:Zonal changes have been studied for a refractory mix of OAO Kombinat Magnezit (Satka) on reaction with melt in the Open-Hearth Process. Four zones of change are isolated. In successive zones there is a reduction in MgO content in the material and a relative increase in the amount of CaO, TiO_2, Al_2O_3, SiO_2, and Fe. In this direction there is an increase in feruginosity of periclase and an increase mix porosity, melt and substitution solid phases appear. These changes reduce refractory mix resistance and promote its breakdown.
Sanjay Chandra - One of the best experts on this subject based on the ideXlab platform.
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Thin-slab casting: New possibilities
Sadhana-academy Proceedings in Engineering Sciences, 2001Co-Authors: Amit Chatteree, Sanjay ChandraAbstract:Changes in the IT industry are known to proceed at a scorching pace. In sharp contrast, the rate of development in the steel industry is generally slow. Nonetheless, the unpact of recenr technical development on the steel industry has been quite significant. The production chain from iron ore to final rolled steel is a long one and the shortening of this length has long been the endeanvour of scientists and engineers. The initial development came in the form of speeding up the Process of steelmaking by reducing the slow Open-Hearth Process (8 h tap-to-tap time with the 45 min tap-to-tap time of the Basic Oxygen Furnace (BOF) Process. Significant development thereafter have been in the Process of continuous production of billets and blooms from liquid steel thereby doing away with the large blooming mills needed for rolling ingots.
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Thin-slab casting: New possibilities
Sadhana, 2001Co-Authors: Amit Chatteree, Sanjay ChandraAbstract:Changes in the IT industry are known to proceed at a scorching pace. In sharp contrast, the rate of development in the steel industry is generally slow. Nonetheless, the unpact of recenr technical development on the steel industry has been quite significant. The production chain from iron ore to final rolled steel is a long one and the shortening of this length has long been the endeanvour of scientists and engineers. The initial development came in the form of speeding up the Process of steelmaking by reducing the slow Open-Hearth Process (8 h tap-to-tap time with the 45 min tap-to-tap time of the Basic Oxygen Furnace (BOF) Process. Significant development thereafter have been in the Process of continuous production of billets and blooms from liquid steel thereby doing away with the large blooming mills needed for rolling ingots. For a fairly long time after the stabilition of continuous casting, hot rolling involved reheating thick (200–250mm) slabs and reducing them in a hot strip mill. The advent of thin-slab casters has made even these large hot strip mills redundant. The new installations produce thin slabs (50–70mm) that are directly nil led hin strip without the need of an intermediate furnace for raising the stock temperature; the so-called cunnel furnace prior to the rolling stands serving only to equalise stock temperatures. Additionally, what started as a step for reducing investment in hot rolling has in fact, given new opportunity for direct hot rolling of thickneses that were, for long, considered to be feasible only through the cold-rolling route. This article discusses the slow but steady encroachment of hot-rolled sheets into the domain of strip thicknesses hitherto produced by cold rolling and tries to show how the development of thin-slab casters has allowed this Process to be accelerated. A techno-economic analysis of thin-slab casting: been presented along with the benefits that arise when a thin-slab caster is linked to the blast furnace and basic oxygen route of steel making.
A. M. Batanova - One of the best experts on this subject based on the ideXlab platform.
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Technogenic mineral formation in refractory materials in the Open-Hearth Process
Refractories and Industrial Ceramics, 2011Co-Authors: A. M. Batanova, T. I. Shchekina, E. N. Gramenitskii, V. P. Grigor’ev, A. N. Pyrikov, B. N. Grigor’evAbstract:A study has been made in a series of researches by authors of the present article of features of the change in phase and chemical composition of magnesia refractory mixes, used in the Hearths of Open-Hearth furnaces and subject to chemical corrosion during their reaction with metallurgical melts. During performance of this work the Hearth wear mechanism was studied during service using for ramming magnesia powder grade PPM-85 (GOST 24862) of domestic production (OAO Kombinat Magnezit). Previously magnesia dolomite mixes grade AnkerHearth [1] and JeHearth grade [2], obtained from overseas enterprises, were studied for this purpose.
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Technogenic mineral formation in refractory materials in the Open-Hearth Process
Refractories and Industrial Ceramics, 2011Co-Authors: A. M. Batanova, T. I. Shchekina, E. N. Gramenitskii, V. P. Grigor’ev, A. N. Pyrikov, B. N. Grigor’evAbstract:Zonal changes have been studied for a refractory mix of OAO Kombinat Magnezit (Satka) on reaction with melt in the Open-Hearth Process. Four zones of change are isolated. In successive zones there is a reduction in MgO content in the material and a relative increase in the amount of CaO, TiO_2, Al_2O_3, SiO_2, and Fe. In this direction there is an increase in feruginosity of periclase and an increase mix porosity, melt and substitution solid phases appear. These changes reduce refractory mix resistance and promote its breakdown.
Feven Asrat - One of the best experts on this subject based on the ideXlab platform.
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A Review on steel production and development of Steelmaking Technologies
2018Co-Authors: Ramesh Rudrapati, Migbar Assefa, Ersame Damtaw, Yeabsira Assege, Feven AsratAbstract:The main objective of this study was to provide a state-of-the-art review for the production, material properties, and applications of steel materials. The steel has developed several steelmaking technologies like Bessemer Process for steelmaking, Open-Hearth Process for steelmaking, Linz–Donawitz steelmaking, and electric arc furnace steelmaking. In the present study, the production procedure, advantages, and limitations of each of the steelmaking Process have been discussed. The application of steel materials in various industrial purposes has been explored. From the study, the concluding remarks have been drawn
L.g.w. Verhoef - One of the best experts on this subject based on the ideXlab platform.
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Urban heritage, building maintenance: iron & steel
1999Co-Authors: L.g.w. VerhoefAbstract:In the 1ge century what had been the traditional building techniques up to th at time were considerably changed owing to the use of cast iron and later wrought iron and steel. In fact, the industrial revolution, initially based in England, would not have been possible without these materiais. Not only the development of the product, in which the ditlerence bet ween iron and steellay purely !he fact that steel could be tempered, while iron could be hammered into shape, but also the manufacturing Processes. These progressed via the puddling fumace, introduced by Henry Cort in 1784, which made possible the production of wrought iron, the Bessemer converter 1855, and the Siemens-Martin Open Hearth Process and led to continuous improvements in building technology.
