Dynamic interaction of refractory and molten steel
· The dynamic interaction between molten steel and refractory material will seriously affect the service life of the refractory lining and restrict the smelting safety and efficiency of steelmaking. In this paper experiments on the interaction between an alumina-magnesia castable and molten steel under dynamic smelting conditions were performed.
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OPTIMISATION OF REFRACTORY COMPONENTS OF
· refractory components as well as high temperature evolution of their properties. KEYWORDS continuous casting refractory interactions plate refractory properties corrosion thermal shock resistance 1. Introduction The development of the continuous casting process resulted in a longer residence time of the molten steel in the steel casting ladle.
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Dynamic slag/refractory interaction of lightweight Al2O3
· Fig. 1 shows the schematic of the experiment furnace and procedure of the dynamic slag/refractory interaction experiments. A medium-frequency induction furnace with dimensions of 550 mm (inner diameter) 1000 mm (depth) was used to heat and melt 1000 kg of steel that was covered by slag with a thickness of approximately 80 mm.
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Slag/refractory and metal/refractory interactions during
· simple dip test whereby samples of refractory were held in molten steel for pre-determined periods of time in an induction furnace. The samples were then prepared and analysed under the SEM (with EDS facility) to study the interface between the steel and refractory. This technique allowed a detailed description of the interactions to be made
Get PriceA CFD Study on Refractory Wear in RH Degassing Process
· ciently reduce carbon and sulfur contents in molten steel.1–3) It is well known that the complicated flow of the molten steel in the RH degasser caused by the vacuum and the lift-ing gas would create a significant wear and tear of the lining refractory.4–6) Besides
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The Study of Molten Liquid — Refractory Interactions — It
Cite this paper as Garbers-Craig A. (2016) The Study of Molten Liquid — Refractory Interactions — It Is All about the Phase(s). In Reddy R.G. Chaubal P. Pistorius P.C. Pal U. (eds) Advances in Molten Slags Fluxes and Salts Proceedings of the 10th International Conference on Molten
Get PriceGasifier Refractories Coal Slags and Their Interaction
· Refractory linings are used to protect the steel vessel from the attack by corrosive gases molten slag and abrasive wear as well as to insulate the vessel from energy loss during gasification. The service life of refractory liners for gasifiers has been identified by users as a critical barrier to IGCC
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INTERACTION MECHANISM BETWEEN REFRACTORY AND
· shaped and sintered in refractory factory (Refractory Factory of Chongqing Iron and Steel Co.). These bricks were sintered in high temperature furnace (the service temperature over 1800°C) in the reduction atmosphere. The properties of the refractories are listed in the table 1. The Smelting reduction melts consisted of molten slag and iron bath.
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The Effect of Refining Slag and Refractory on Inclusion
MgO-based refractory and MgO bearing slag both have the potential to supply Mg or Ca to the molten steel and then prompt the inclusion transformation. In this paper the effect of MgO-based refractory and MgO bearing slag on the spinel generation was investigated on laboratorial scale. The results indicated that refractory had a great contribution to MgO·Al2O3 spinel
Get PriceInteraction between Molten Steel and Runner Materials
· Interaction between Molten Steel and Runner Materials during Steel Ingot Bottom material was observed between the runner steel and the surrounding refractory brick that partly Evidence of the molten steel breaking through cracks in the runner brick and leaking around the bricks is observed as large attached fins in several places (Fig.4
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CORROSION TESTS FOR REFRACTORY MATERIALS
· refractory crack and break. The major chemical attack is corrosion which comes from the interaction between a refractory and a corrosive medium gas molten metals molten glasses molten salts or slag. It results in a loss of mass and thickness and in the degradation of the material properties. The steel industry is one of the major consumers
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CORROSION TESTS FOR REFRACTORY MATERIALS
The steel industry is one the biggest consumers of refractories. In this industry refractories are commonly used as linings for steel production equipment because they can sustain high temperature and corrosive attack in their working environment. However due to the harsh conditions their life span is limited. Corrosion mainly by slag and molten steel is the principal phenomenon responsible
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Interaction between Molten Steel and Runner Materials
· Interaction between Molten Steel and Runner Materials during Steel Ingot Bottom material was observed between the runner steel and the surrounding refractory brick that partly Evidence of the molten steel breaking through cracks in the runner brick and leaking around the bricks is observed as large attached fins in several places (Fig.4
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Interaction between Molten Steel and Runner Materials
· Interaction between Molten Steel and Runner Materials during Steel Ingot Bottom material was observed between the runner steel and the surrounding refractory brick that partly Evidence of the molten steel breaking through cracks in the runner brick and leaking around the bricks is observed as large attached fins in several places (Fig.4
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A Study on Molten Steel/Slag/Refractory Reactions during
· evidence of interaction between liquid steel and refractory materials which is dependent on both the steel composition and the type of refractory material. Therefore the reactions that transfer elements between the refractories and molten steel are closely related to the product quality.
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A Study on Molten Steel/Slag/Refractory Reactions during
· evidence of interaction between liquid steel and refractory materials which is dependent on both the steel composition and the type of refractory material. Therefore the reactions that transfer elements between the refractories and molten steel are closely related to the product quality.
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An experimental study of the interactions between liquid
In the production of high quality steel the understanding of the interactions between liquid steel and refractories and of their effect on steel purity and cleanness are becoming more and more important. An experimental study has been performed in order to estimate the importance of the reaction between a MgO-based tundish refractory and an Al-killed steel.
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Interaction between molten steel and different kinds of
· AbstractInteractions between the molten steel and the refractory linings are of fundamental importance for the steelmaking industry. During the casting process the steel cleanliness can be made worse because of the reoxidation of the molten steel in contact with the atmosphere and/or other sources of oxygen (refractories top slag etc.). In the industrial trial periods four tundish
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Agglomeration and Removal of Alumina Inclusions in
molten steel for not only fluid dynamic action but also interfacial chemical interaction and the precise control of Agglomeration and Removal of Alumina Inclusions in Molten Steel with Controlled Concentrations of Interfacial Active Elements Katsuhiro SASAI
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International Journal of Minerals Metallurgy and Materials
· International Journal of Minerals Metallurgy and Materials (IJMMM ISSN CN /TF monthly started in 1994 formerly known as Journal of University of Science and Technology Beijing) is an international journal devoted to publishing original research articles (and occasional invited reviews) on all aspects of minerals processing physical metallurgy process metallurgy and
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High-temperature Interactions of Alumina–Carbon
the refractory over time eventually causing uncontrolled expansion of saturated refractory and hot face spalling.10) The corrosion of alumina–carbon refractories is prima-rily influenced by their chemical reactions with molten iron/steel which proceed through a direct contact with the metal. The composition of the refractory its physical tex-
Get PriceEffect of Selenium on the Interaction Between Refractory
· The interaction between steel and refractory is mainly caused by the chemical reaction and the molten metal penetration. The interfacial phenomenon at the refractory/steel interface has a huge influence on the microstructure evolution of the contact area of the solid refractory material and the molten steel. Zhukovskaya et al.
Get PriceInteraction between molten steel and different kinds of
· AbstractInteractions between the molten steel and the refractory linings are of fundamental importance for the steelmaking industry. During the casting process the steel cleanliness can be made worse because of the reoxidation of the molten steel in contact with the atmosphere and/or other sources of oxygen (refractories top slag etc.). In the industrial trial periods four tundish
Get PriceREFRACTORY NON WETTING OR CORROSION RESISTANT
· REFRACTORY NON WETTING OR CORROSION RESISTANT PROPERTIES AGAINST MOLTEN ALUMINIUM AND ITS ALLOYS Published on February 21 2016 February 21 2016 •
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The Study of Molten Liquid — Refractory Interactions — It
Cite this paper as Garbers-Craig A. (2016) The Study of Molten Liquid — Refractory Interactions — It Is All about the Phase(s). In Reddy R.G. Chaubal P. Pistorius P.C. Pal U. (eds) Advances in Molten Slags Fluxes and Salts Proceedings of the 10th International Conference on Molten
Get PriceA Reaction Between High Mn-High Al Steel and CaO-SiO
· 3 type) which seems inert to Al in molten steel. 5 6 Although the CaO-Al 2O 3-type flux has shown some promising results that the degree of steel/flux interaction could be minimized it exhibits other prob-lems such as increased viscosity and reduced consump-tion thereby resulting in inadequate lubrication. 5 On
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CORROSION TESTS FOR REFRACTORY MATERIALS
The steel industry is one the biggest consumers of refractories. In this industry refractories are commonly used as linings for steel production equipment because they can sustain high temperature and corrosive attack in their working environment. However due to the harsh conditions their life span is limited. Corrosion mainly by slag and molten steel is the principal phenomenon responsible
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Use of slag-line refractory in ladle for tire cord steel
Refractory for slag-line of steel ladle had been improved to meet the demand of tire cord steel making in Baosteel. Bricks with different material such as MgO-Cr2O3 MgO-ZrO2-C and MgO-C were experimented in ladle.
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A Study on Molten Steel/Slag/Refractory Reactions during
· When the molten steel is treated in a ladle the reaction between steel and the refractory lining have a great influence on the steel purity. Many steel plants use MgO-C refractories with a content of C between 5 and 20 wt-
Get PriceThe Quality Interaction of Molten Salts in the Systems
The aim of this study was to realize and evaluate laboratory corrosion tests associated with problems such as wear of refractory materials for example at processing of aluminium. Corrosion tests were carried out by static crucible corrosion test in laboratory resistive furnace at 850 °C during 2 hours in air atmosphere. Two types of aluminum-silica molded refractories were used as a
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