reaction kinetics of steel in induction furnace

Microstructure and kinetics of induction brazing TiAl ...

2006-2-25  Microstructure and kinetics of induction brazing TiAl-based intermetallics to steel 35CrMo using AgCuTi filler metal. ... Compared with conventional vacuum furnace brazing, induction vacuum brazing is characterized by very rapid thermal ... Obviously the reaction layer D adjacent to the steel 35CrMo is TiC, which is the white strip and very thin.

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Reaction kinetics during direct alloying of manganese ore ...

2020-2-27  In order to increase the reaction rates between the molten steel and the slag and cut down the reduction time when the top slag of manganese ore is added into the molten steel, a method of directly alloying manganese ore has been experimented in a 500-kg induction furnace. The results show that the manganese yield is greater than 90% when the wire feeding method is used. The manganese

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Kinetics of Steel Refining in a Ladle Furnace - Thermo ...

Kinetics of Steel Refining in a Ladle Furnace. This in-depth example shows how to set up a full kinetic simulation of steel refining in a ladle furnace using the Process Metallurgy Module in Thermo-Calc. The Process Metallurgy Module uses the Effective Equilibrium Reaction Zone model (EERZ) to simulate the kinetics of the process.

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Kinetic Model of Decarburization and Denitrogenation in ...

2009-1-22  Specific laboratory trials in the vacuum induction furnace were performed on a 300-kg scale under reduced pressure in VCD and VOD styles to investigate kinetics of the decarburization and denitrogenation for the stainless steel because of inconvenience in temperature and metal composition measured during the actual VOD process.

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STUDIES ON DIRECT REDUCED IRON MELTING IN

2012-7-26  kinetic of melting DRI is very much under detail study. Keeping this in view an attempt was made in the present work, to study melting of DRI and its kinetics using molten steel bath as hot heel in the laboratory set up of induction furnace unit. 2. CHARACTERISTICS OF DRI Direct reduced iron (DRI) is produced in three

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Reduction Kinetics of Electric Arc Furnace Oxidizing Slag ...

2016-7-13  Reduction experiments were carried out in an induction furnace (40 kHz, maximum power of 20 kW). Figure 1 shows a schematic diagram of the experimental apparatus. 70 g of slag in a MgO crucible (O.D.: 63.75 mm, I.D.: 56.35 mm, height: 76.5 mm) was placed in a graphite holder (O.D.: 75 mm, I.D.: 65 mm, height: 100 mm), which was inductively heated under an Ar (6 N purity) atmosphere.

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Kinetic Study of the Nitrogen Removal Rate from Molten ...

A nitrogen removal experiment was carried out under reduced pressure using a 600-kg-scale induction furnace. Using normal and 17 mass%Cr steel, two methods to promote the reaction were selected, i.e., expansion of the reaction area with CO boiling and reduction of surface active elements, with the aim of promoting the chemical reaction at the metal–gas interface.

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(PDF) Kinetic Model of Steel Refining in a Ladle Furnace

Kinetic Model of Steel Refining in a Ladle Furnace. ... include more detailed descriptions of the mass transport and the resulting reactions kinetics. [151, 159, 160] Overall, the

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A kinetic study of carbon injection into electric arc ...

2009-8-26  To clarify the reaction kinetics and find the optimum conditions of coal injection into slags, experiments of coal injection directly into slags were carried out in the present study. On the basis of kinetic analysis, slag foaming is discussed as well. Experimental Experiments were carried out in a 75 kW induction furnace.

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Studies on direct reduced iron melting in induction furnace

The experiment was continued to reduce pellet composite in the HBC furnace. The pig iron produced from this process contained of 93.62%Fe, 3.5%C, 1.55%Si, 0.87%Mn,

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A Kinetic Ladle Furnace Process Simulation Model ...

One of the main limitations of the kinetic model was the over-prediction of calcium pick-up in steel due to steel-slag reaction. Induction furnace experiments were conducted using MgO, ZrO2 and ...

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STUDIES ON DIRECT REDUCED IRON MELTING IN

2012-7-26  kinetic of melting DRI is very much under detail study. Keeping this in view an attempt was made in the present work, to study melting of DRI and its kinetics using molten steel bath as hot heel in the laboratory set up of induction furnace unit. 2. CHARACTERISTICS OF DRI Direct reduced iron (DRI) is produced in three

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A Kinetic Model to Predict the Compositions of Metal,

reaction kinetics is necessary. Okuyama et al.4) measured the change in the chemical composition of steel by the reaction between the molten steel and the slag in a small-scale induction furnace to sim-ulate the reactions in the ladle refining process. Then, they calculated the

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Kinetic Study of the Nitrogen Removal Rate from Molten ...

A nitrogen removal experiment was carried out under reduced pressure using a 600-kg-scale induction furnace. Using normal and 17 mass%Cr steel, two methods to promote the reaction were selected, i.e., expansion of the reaction area with CO boiling and reduction of surface active elements, with the aim of promoting the chemical reaction at the metal–gas interface.

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MECHANISM AND KINETICS OF TRANSFORMATION OF

2012-2-18  observations and thermodynamic equilibrium examinations. The kinetics of the reaction of calcium with alumina inclusions were simulated by performing Ca treatments in an induction furnace for 8 kg steel deoxidised with aluminium. Results were compared with observations of inclusion transformation in a real steelmaking process. Based on

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ITP Steel: Nitrogen Control in Electric Arc Furnace ...

2014-6-2  furnaces with little alteration. This technol-ogy uses materials already in production and does not require any new production process. STEEL Researchers at the induction furnace facility at McMaster University study the injection of DRI fines into steel to reduce the nitrogen content. Here powder is being injected into 60-kg heats of steel.

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“DEPHOSPHORIZATION OF STEEL PRODUCED FROM

2014-8-20  The main electric furnaces that are used in secondary steelmaking to produce steel are induction furnace and electric arc furnace. As per the information presented by ministry of steel, total manufacturing of crude steel in India is around 74MT in the last year. Out of this 35 percent steel was produced using induction furnace.

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MECHANISM AND KINETICS OF TRANSFORMATION OF

The kinetics of the reaction of calcium with alumina inclusions were simulated by immersing alumina plates in a Ca treated steel melt in the induction furnace. Results were compared with observations of real inclusion transformation. A kinetic model was proposed based on the results.

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Nonisothermal Investigation of Reaction Kinetics between ...

The volatilization of zinc in the electric arc furnace dust–CaCl 2 and ZnFe 2 O 4 –ZnO–CaCl 2 –C reaction systems was investigated. Experiments were conducted under an N 2 atmosphere in an infrared lamp heating furnace, and the activation energy of the reaction rate of zinc volatilization was determined by the Ozawa method. The activation energy in the dust–CaCl 2 reaction system was ...

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Introduction to the electric arc furnace steelmaking ...

2021-3-10  1. Adding materials. The operation of adding raw materials such as molten iron or scrap steel to the electric furnace is the first step of the electric furnace steelmaking operation. 2. Slagging. The operation of adjusting the slag composition, alkalinity, viscosity

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Kinetic Study of the Nitrogen Removal Rate from Molten ...

A nitrogen removal experiment was carried out under reduced pressure using a 600-kg-scale induction furnace. Using normal and 17 mass%Cr steel, two methods to promote the reaction were selected, i.e., expansion of the reaction area with CO boiling and reduction of surface active elements, with the aim of promoting the chemical reaction at the metal–gas interface.

Read More
STUDIES ON DIRECT REDUCED IRON MELTING IN

2012-7-26  kinetic of melting DRI is very much under detail study. Keeping this in view an attempt was made in the present work, to study melting of DRI and its kinetics using molten steel bath as hot heel in the laboratory set up of induction furnace unit. 2. CHARACTERISTICS OF DRI Direct reduced iron (DRI) is produced in three

Read More
A Kinetic Model to Predict the Compositions of Metal,

reaction kinetics is necessary. Okuyama et al.4) measured the change in the chemical composition of steel by the reaction between the molten steel and the slag in a small-scale induction furnace to sim-ulate the reactions in the ladle refining process. Then, they calculated the

Read More
“DEPHOSPHORIZATION OF STEEL PRODUCED FROM

2014-8-20  The main electric furnaces that are used in secondary steelmaking to produce steel are induction furnace and electric arc furnace. As per the information presented by ministry of steel, total manufacturing of crude steel in India is around 74MT in the last year. Out of this 35 percent steel was produced using induction furnace.

Read More
MECHANISM AND KINETICS OF TRANSFORMATION OF

The kinetics of the reaction of calcium with alumina inclusions were simulated by immersing alumina plates in a Ca treated steel melt in the induction furnace. Results were compared with observations of real inclusion transformation. A kinetic model was proposed based on the results.

Read More
A kinetic study of carbon injection into electric arc ...

2009-8-26  To clarify the reaction kinetics and find the optimum conditions of coal injection into slags, experiments of coal injection directly into slags were carried out in the present study. On the basis of kinetic analysis, slag foaming is discussed as well. Experimental Experiments were carried out in a 75 kW induction furnace.

Read More
MECHANISM AND KINETICS OF TRANSFORMATION OF

2012-2-18  observations and thermodynamic equilibrium examinations. The kinetics of the reaction of calcium with alumina inclusions were simulated by performing Ca treatments in an induction furnace for 8 kg steel deoxidised with aluminium. Results were compared with observations of inclusion transformation in a real steelmaking process. Based on

Read More
Reaction Kinetics of Iron Oxides in Ok Tedi Magnetite ...

Reaction Kinetics of Iron Oxides in Ok Tedi Magnetite Skarn Ore ... to produce sponge iron for a mini steel plant in Papua New Guinea. SEM-EDAX analyses of the Ok Tedi MSO indicated 10.1% C, 30% O, 0.6% Mg, 1.1% Si, 21.1% S, 0.8% Ca and 36.2 % Fe. ... as the feedstock for electric arc/induction furnace based mini steel plants in PNG. Iron ore ...

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MacSphere: Kinetic modelling for the formation of ...

2015-10-21  During the refining of low carbon aluminum killed steel in the ladle furnace; the initial alumina inclusions shift their composition towards higher contents of MgO and eventually they become magnesium aluminate spinel inclusions. This research developed a kinetic model for the transformation of alumina inclusions to spinel in liquid steel.

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Nonisothermal Investigation of Reaction Kinetics between ...

The volatilization of zinc in the electric arc furnace dust–CaCl 2 and ZnFe 2 O 4 –ZnO–CaCl 2 –C reaction systems was investigated. Experiments were conducted under an N 2 atmosphere in an infrared lamp heating furnace, and the activation energy of the reaction rate of zinc volatilization was determined by the Ozawa method. The activation energy in the dust–CaCl 2 reaction system was ...

Read More

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