reaction kinetics of steel in induction furnace

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reaction kinetics of steel in induction furnace

  • Kinetics of High Temperature Oxidation of High Carbon ...

    proportions determined by reaction kinetics, where the predominant oxide being magnetite In general, the oxidation process can be expressed as: (1) H. T. Abuluwefa Kinetics of High Temperature Oxidation of High Carbon Steels in Multi-component Gases Approximating Industrial Steel Reheat Furnace Atmospheres T k t A W x n =

  • Understanding Electric Arc Furnace Steel Making Operations ...

    Electric arc furnaces range in capacity from a few tons to as many as 400 tons, and a steel melting shop can have a single furnace or up to three or four. In brief, these furnaces melt steel by applying an AC current to a steel scrap charge by mean of graphite electrodes.

  • Melting of large steel casting parts in the induction furnace

    heat processing 2-2015 103 Induction Technology REPORTS Melting of large steel casting parts in the induction furnace by Wolfgang Ertl, Erwin Dötsch The voestalpine Group operates in their steel segment a foundry for the manufacture of heavy cast steel with a melt

  • A PROCESS FOR REFINING STEEL IN INDUCTION FURNACE

    The induction furnace melting is used only for remelting without any chemical reactions. Therefore, the induction furnace process is, wherein what goes in must come out, as the furnace is used only for remelting and no chemical reaction takes place. Steelmaking through induction furnace is considered as a secondary route of steelmaking.

  • Grant Date: 01-May-2012
  • Kinetics of induction heating of steel ... - SpringerLink

    Heating of steel parts in a high-temperature induction salt bath with a graphite crucible results not only from the heat from the surrounding fused salts but also from the electromagnetic field that occurs in

  • Cited by: 3
  • “DEPHOSPHORIZATION OF STEEL PRODUCED FROM SPONGE

    Department of Metallurgical Materials Engineering National Institute of Technology Rourkela-769 008, Orissa, India CERTIFICATE This is to certify that the thesis entitled, “DEPHOSPHORIZATION OF STEEL PRODUCED FROM SPONGE IRON IN THE INDUCTION FURNACE” submitted by Mr. ABHILASH PUROHIT Roll No. 212MM2458 in partial fulfillment of the ...

  • Authors: Abhilash PurohitAbout: Mechanical engineering
  • “DEPHOSPHORIZATION OF STEEL PRODUCED FROM

    Department of Metallurgical Materials Engineering National Institute of Technology Rourkela-769 008, Orissa, India CERTIFICATE This is to certify that the thesis entitled, “DEPHOSPHORIZATION OF STEEL PRODUCED FROM SPONGE IRON IN THE INDUCTION FURNACE” submitted by Mr. ABHILASH PUROHIT Roll No. 212MM2458 in partial fulfillment

  • Authors: Abhilash PurohitAbout: Mechanical engineering
  • Kinetics of induction heating of steel ... - SpringerLink

    Heating of steel parts in a high-temperature induction salt bath with a graphite crucible results not only from the heat from the surrounding fused salts but also from the electromagnetic field that occurs in the crucible.

  • Kinetics of electric arc furnace slag leaching in alkaline ...

    The dissolution of electric arc furnace steel slag (EAFSS) in highly alkaline MOH solution (M = alkali metal Na or K) has been investigated with emphases on the influence of the initial alkali concentration, solid to liquid (S/L) ratio and temperature on the kinetics of

  • Effect of Slag Composition on the Kinetics of Formation of ...

    Kinetics of both slag/metal reactions and metal/inclusion reactions were investigated experimentally using 20kg vacuum induction furnace in order to clarify the mechanism of the formation of MgAl 2O 4 spinel inclu-sions in aluminum killed ferritic stainless steel (SUS430). The results obtained are summarized as follows : 1) By reducing CaO/SiO ...

  • REFINING STEELS PRODUCED IN ELECTRIC ARC FURNACE

    Refining steels produced in Electric Arc Furnace 111 Desulphurization is based on the use of elements with higher affinity to sulfur than iron, such as Mn, Ca, Ba, Mg and Lanthanide. Resulting sulphides are not soluble in steel and are absorbed by the slag. Desulphurization using

  • Kinetics of Carbon Reaction with Electric Arc Furnace ...

    Kinetics of Carbon Reaction with Electric Arc Furnace Slags During Slag Foaming M. P. King, F.-Z. Ji, G. A. Irons and K. S. Coley Steel Research Centre, Department of Materials Science and Engineering McMaster University 1280 Main Street West Hamilton, Ontario, Canada, L8S 4L7 Tel. 1.905-525-9140 Ext. 24503 Fax: 1.905-528-9295 E-mail. [email protected] Key words: Reaction kinetics

  • Emerging Technologies for Iron and Steelmaking

    The IFCON process, developed by ISCOR in South Africa, is capable of producing steel directly from coal and iron ore. 1 In this process, coal and ore are added continuously to a channel type induction furnace containing a slag-metal bath. Electrical energy is supplied by the induction furnace for heating and stirring the bath.

  • Steelmaking in Induction Furnace – IspatGuru

    May 24, 2018  Making of mild steel in the induction furnace was first experimented during early 1980s and it gained popularity when the production of sponge iron utilizing coal based process of rotary kilns became popular. Induction furnace is a type of electric melting furnace which uses electric current to melt metal.

  • Nitriding - Wikipedia

    Nitriding is a heat treating process that diffuses nitrogen into the surface of a metal to create a case-hardened surface. These processes are most commonly used on low-carbon, low-alloy steels. They are also used on medium and high-carbon steels, titanium, aluminium and molybdenum.In 2015, nitriding was used to generate unique duplex microstructure

  • Induction Furnace - A Review - Engg Journals

    experiments on Induction furnaces. In 1890,Edward Allen Colby patented an induction furnace for melting metals. The first practical usage was in Gysinnge, Sweden,by Kjellin in 1900 and was similar to the Colby furnace with the primary closest to the core. The first steel made in an induction furnace in the United States

  • Removal of phosphorus from induction melted iron/steel

    Removal of phosphorus from induction melted iron/steel ... the slag is not fluid then the dephosphorisation is slow due to the kinetics of the reaction. ... The induction furnace steel

  • MECHANISM AND KINETICS OF TRANSFORMATION OF

    mechanism and kinetics of the transformation process of alumina inclusions in steel when calcium is introduced into the steel e.g., by wire feeding or powder injection. To clarify the mechanisms, several types of model experiments were performed in laboratory furnaces and on an industrial scale. Reactions between only Al2O3 and CaO

  • Furnace - Wikipedia

    A furnace is a device used to heat and melt metal ore to remove gangue. The name derives from Latin word fornax, which means oven. The heat energy to fuel a furnace may be supplied directly by fuel combustion, by electricity such as the electric arc furnace, or through induction heating in induction furnaces.

  • C 18 - steel melting - SlideShare

    Jan 25, 2017  Coreless Induction Furnaces • Both channel-and coreless-type induction electric furnaces are used in the steel industry. • The coreless induction furnace melts by passing an alternating current through a water-cooled coil that surrounds the refractory linings of the furnace • The current generates a magnetic field that induces currents in ...

  • Nitriding - Wikipedia

    Nitriding is a heat treating process that diffuses nitrogen into the surface of a metal to create a case-hardened surface. These processes are most commonly used on low-carbon, low-alloy steels. They are also used on medium and high-carbon steels, titanium, aluminium and molybdenum.In 2015, nitriding was used to generate unique duplex microstructure (Martensite-Austenite, Austenite-ferrite ...

  • Removal of phosphorus from induction melted iron/steel

    Removal of phosphorus from induction melted iron/steel ... the slag is not fluid then the dephosphorisation is slow due to the kinetics of the reaction. ... The induction furnace steel is then ...

  • MECHANISM AND KINETICS OF TRANSFORMATION OF

    mechanism and kinetics of the transformation process of alumina inclusions in steel when calcium is introduced into the steel e.g., by wire feeding or powder injection. To clarify the mechanisms, several types of model experiments were performed in laboratory furnaces and on an industrial scale. Reactions between only Al2O3 and CaO

  • C 18 - steel melting - SlideShare

    Jan 25, 2017  Coreless Induction Furnaces • Both channel-and coreless-type induction electric furnaces are used in the steel industry. • The coreless induction furnace melts by passing an alternating current through a water-cooled coil that surrounds the refractory linings of the furnace • The current generates a magnetic field that induces currents in ...

  • Effect of Ladle Furnace Slag Composition in Si-Mn Killed ...

    The simulated changes in inclusion chemical composition and phases, as well as total oxygen and dissolved aluminum in steel were compared. One experimental trial was made to simulate ladle steel-slag and steel-inclusion reactions using an induction furnace to simulate deoxidation and slag addition.

  • Investigation of Electric Arc Furnace Chemical Reactions ...

    Investigation of Electric Arc Furnace Chemical Reactions and stirring effect Lei Deng Supervisor:Dr. Xiaojing Zhang (ABB) Niloofar Arzpeyma (KTH) Master Degree Thesis School of Industrial Engineering and Management Department of Materials Science and Engineering Royal Institute of Technology SE-100 44 Stockholm Sweden

  • Reaction kinetics of nanostructured silicon carbide

    induction furnace and tube furnace samples) clearly indicated the presence of crystalline β-SiC with cubic symmetry, carbon nanotubes, and excess silicon (except for those samples for which the reaction was complete). After heating the samples at 973 K in air, peaks due to CNTs disappeared from the x-

  • Dynamic modeling of dephosphorization kinetics in the BOF ...

    EDX and XRD analysis of a sample of the slag formed after Na2CO3 flux treatment of liquid steel in an induction furnace suggests that sulphur and phosphorus are removed mainly as sodium sulphides ...

  • Effect of Slag Composition on the Kinetics of Formation of ...

    Kinetics of both slag/metal reactions and metal/inclusion reactions were investigated experimentally using 20 kg vacuum induction furnace in order to clarify the mechanism of the formation of MgAl 2 O 4 spinel inclusions in aluminum killed ferritic stainless steel (SUS430). The results obtained are summarized as follows :

  • Effect of Slag Composition on the Kinetics of Formation of ...

    Kinetics of both slag/metal reactions and metal/inclusion reactions were investigated experimentally using 20 kg vacuum induction furnace in order to clarify the mechanism of the

  • Physical and Chemical Characteristics of Blast Furnace ...

    Approximately 21 million tons of steel industry slag are produced each year in the United States, and many productive commercial uses of slag have been developed (e.g., road bed, fill material). However, because slag contains heavy metals at concentrations that are higher than in most soil, questions have been raised regarding the need to evaluate the potential human health and environmental ...

  • A Primer on Thermodynamics and Kinetics for the Heat ...

    Sep 11, 2017  The heat treater might be surprised to learn that in order to understand how various heat-treatment processes create a particular microstructure and its corresponding mechanical properties, it is necessary to have a fundamental understanding of both thermodynamics and kinetics (in this case involving solid-state phase transformations as a function of temperature and composition).[1]

  • furnace charger for induction furnace

    May 24, 2018 carburizer, control system, Ferro alloys, Induction furnace, induction heating, scrap, slag, Sponge iron, steelmaking, Steelmaking in Induction Furnace. Coreless induction furnaces have been used in the ferrous industry for over 50 years and are now one of the most popular means of melting and holding ferrous materials.

  • KINETICS OF IRON ORE REDUCTION BY COAL AND

    KINETICS OF IRON ORE REDUCTION BY COAL AND CHARCOAL ... making steel in electric arc furnace, basic oxygen furnace etc. which resulted in rapid worldwide growth in DRI production. DRI is a solid state product of direct reduction ... Reaction kinetics in iron ore reduction deal with the rate at which iron oxides

  • Physical and Chemical Characteristics of Blast Furnace ...

    Approximately 21 million tons of steel industry slag are produced each year in the United States, and many productive commercial uses of slag have been developed (e.g., road bed, fill material). However, because slag contains heavy metals at concentrations that are higher than in most soil, questions have been raised regarding the need to evaluate the potential human health and environmental ...

  • A Primer on Thermodynamics and Kinetics for the Heat ...

    Sep 11, 2017  A Primer on Thermodynamics and Kinetics for the Heat Treater. ... (e.g., mechanical, electrical or chemical). By contrast, kinetics is the study of reaction rates – the forces acting on various mechanisms (e.g., chemical, physical). ... Kinetics of mass transfer at the gas-steel interface for carbon diffusion in steel is an example of ...

  • furnace charger for induction furnace

    May 24, 2018 carburizer, control system, Ferro alloys, Induction furnace, induction heating, scrap, slag, Sponge iron, steelmaking, Steelmaking in Induction Furnace. Coreless induction furnaces have been used in the ferrous industry for over 50 years and are now one of the most popular means of melting and holding ferrous materials.

  • KINETICS OF IRON ORE REDUCTION BY COAL AND

    KINETICS OF IRON ORE REDUCTION BY COAL AND CHARCOAL ... making steel in electric arc furnace, basic oxygen furnace etc. which resulted in rapid worldwide growth in DRI production. DRI is a solid state product of direct reduction ... Reaction kinetics in iron ore reduction deal with the rate at which iron oxides

  • What are the advantages and disadvantages of induction ...

    Jun 04, 2018  In steel smelting, compared with electric arc furnace smelting, the use of crucible induction furnace has many advantages, such as: (1) Although the induction furnace

  • STUDIES ON DIRECT REDUCED IRON MELTING IN

    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 primary product forms namely lumps, pellets and hot briquettes. Other secondary product form is a cold moulded briquette made from DRI fines. Hot

  • Contribution to Deoxidation of Austenitic Steels in a ...

    Keywords: Vacuum induction furnace, Deoxidation with carbon, Steel for petrochemistry, Oxygen activity, Total oxygen 1. Introduction A metallurgical unit composed of a vacuum induction furnace and a vacuumed crucible seems to be a prospective one for manufacture of exacting steel

  • Published in: Archives of Foundry Engineering 2015Authors: J Senberger V PernicaAffiliation: Brno University of TechnologyAbout: Petrochemistry Carbon
  • :: Knergize :: Steelmaking through EAF / Induction Furnace ...

    Tapping Molten Steel from Induction Furnace. ... FeSi and Aluminium are added in the ladle during tapping for deoxidation of steel. Deoxidation reactions. 4Al + 3O2 = 2 Al2O3. ... Argon purging through a porous plug brings about thorough homogenization of the melt and improves kinetics of the process. Ferroalloy additions are made as per the ...

  • AISI Electric Arc Furnace Steelmaking

    Electric Arc Furnace Steelmaking By Jeremy A. T. Jones, Nupro Corporation ... is also beneficial because it renews the slag/metal interface thus improving the reaction kinetics. In general, if low phosphorus levels are a requirement for a particular steel grade, the scrap is selected to give a low level at ... AISI Electric Arc Furnace ...

  • Smelting reduction reactions by solid carbon using ...

    The present paper reports experimental data on the reduction of FeO in molten slag generated in a 30 kW capacity induction furnace. The influence of FeO content in the slag and temperature on the foaming and kinetics is discussed. ... Smelting reduction reactions by solid carbon using induction furnace: foaming behaviour and kinetics of FeO ...

  • A pre-study of Hot Metal Desulphurization

    In a blast furnace, the coke reacts directly and indirectly with the iron pellets to produce the metallic iron. Raw materials are charged from the top of blast furnace and it usually takes 8 hours to get hot metal at the furnace bottom. The reduction reactions can be described to take place as follows: Fe 2 O 3 → Fe 3 O 4 → FeO → Fe.

  • Observation of Furnace-Induction Quenched Microstructure ...

    There are two major heating methods used in industrial situations. One is furnace heating which is popular for mass production as it hardens the steel uniformly. The other is induction heating which is energy saving but hardens the steel unevenly. We developed a combined heat treatment method, furnace-induction heating (FIH), and observed the material structure using picral and nital etching.

  • Mechanism and kinetics of transformation of alumina ...

    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 the results, a kinetic model was proposed.

  • Steel - Electric-arc steelmaking Britannica

    Steel - Steel - Electric-arc steelmaking: About one-quarter of the world’s steel is produced by the electric-arc method, which uses high-current electric arcs to melt steel scrap and convert it into liquid steel of a specified chemical composition and temperature. External arc heating permits better thermal control than does the basic oxygen process, in which heating is accomplished by the ...