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slag formation steelmaking induction furnace

slag formation steelmaking induction furnace

Steelmaking in Induction Furnace – IspatGuru

2018-5-24  The main raw materials for steelmaking in induction furnace are (i) steel scrap, (ii) iron scrap or/and pig iron, (iii) sponge iron, (iv) carburizer, and (v) additives. Out of these the first three are metallics. Dirty or contaminated scrap tends to deposit a slag layer on the furnace

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Induction Furnace and Steelmaking – IspatGuru

2013-3-26  Induction furnace is a type of furnace for steelmaking which uses electrical energy for its operation. Induction furnace (IF) steelmaking is one of the two electrical steelmaking processes. The other process for electrical steelmaking uses an electric arc furnace (EAF).

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MgO modification of slag from stainless steelmaking

2004-1-18  in volume of about 11% and a total disintegration of the slag. AOD slag from stainless steelmaking was re-melted in a laboratory induction furnace, together with olivine and calcinated dolomite, to investigate the prevention of disintegration by increased MgO content of the slag with small changes in CaO to SiO 2 ratio. The modified slag was ...

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Synopsis: In iron and steelmaking the composition of

2018-8-8  In stainless steelmaking various chromites are formed depending on the slag composition. Key words: Blast furnace slags, EAF slags, foaming, mineralogical composition of slags 1. Introduction Raw materials in steelmaking are pig iron and ferroalloys. In all the three processes liquid slags are used. During the reduction in the blast furnace ...

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Steelmaking based on inductive melting - Home ABP

2020-4-30  furnaces in steel works in two fields: Firstly, the induction furnace as the melting unit for mini-mills with an annual production of 100,000 to 900,000 t/a is now an alternative to the electric arc furnace. Secondly, it is suitable for melt - ing the ferroalloys for adding to the ladle in liquid form when making stainless steel.

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Recycling of induction furnace steel slag in concrete

2021-5-24  Induction furnace steel slag was obtained from Jeppiaar Furnace and Steels, Pvt., Ltd., Chennai, Tamil Nadu, India. Cement (Zuari, Ordinary Portland Cement—53G), water, natural fine aggregate and coarse aggregate are the raw materials used to prepare concrete blocks.

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Steelmaking Slag - an overview ScienceDirect Topics

2012-4-4  Compared to blast-furnace slag, steelmaking slag usually contains a much higher amount of lime, which can cause formation of dicalcium silicate, 2CaO-SiO 2 (sometimes formulated as 2CaOSiO 2), which can cause disintegration upon cooling due to a volume increase when changing from one crystalline form to another (from the β form to the γ form) [3].

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Control of Slag and Insoluble Buildup in Ladles, Melting ...

2020-5-14  Slag Composition: The composition of furnace and ladle slag is often very complex. The slags that form in electric furnace melting result from complex reactions between silica (adhering sand and dirt from casting returns), oxides from scrap, other oxidation by-products from melting and reactions with refractory linings.

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Thermodynamic calculation on the smelting slag of

2003-3-1  An induction furnace was used to simulate electric arc furnace smelting to recover the metals from the dust. The elements of iron, chromium and nickel in the ingot and the components of metal oxides in the slag were analyzed. The thermodynamic model for FeO-Cr 2 O 3-MgO-SiO 2 slag was set up and the active concentrations of substances in the slag at 1 550 °C were determined by thermodynamic

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Experimental simulations of primary slag formation in ...

2013-7-18  Primary slag formation of the blast furnace ferrous burden was experimentally simulated using synthetic MgO-Al 2 O 3-CaO-SiO 2 slags with FeO, Na 2 O, or FeS additions. The combined effect of FeO and Na 2 O or FeS was also examined. The melting behaviour and viscosity of five different base slags (sinter, pellet, or lump ore) were investigated using optical dilatometry, thermogravimetric ...

Get Price

MgO modification of slag from stainless steelmaking

2004-1-18  in volume of about 11% and a total disintegration of the slag. AOD slag from stainless steelmaking was re-melted in a laboratory induction furnace, together with olivine and calcinated dolomite, to investigate the prevention of disintegration by increased MgO content of the slag with small changes in CaO to SiO 2 ratio. The modified slag was ...

Get Price

Steelmaking Slag - an overview ScienceDirect Topics

2012-4-4  Compared to blast-furnace slag, steelmaking slag usually contains a much higher amount of lime, which can cause formation of dicalcium silicate, 2CaO-SiO 2 (sometimes formulated as 2CaOSiO 2), which can cause disintegration upon cooling due to a volume increase when changing from one crystalline form to another (from the β form to the γ ...

Get Price

Recycling of induction furnace steel slag in concrete

2021-5-24  In the present investigation, induction furnace (IF) steel slag as coarse aggregate with 0%, 20% and 40% replaced concrete specimens of size 150 × 150 × 150 mm was prepared as an initiative to utilize iron-rich IF steel slag. The casted concrete specimens were cured for 28 days at room temperature (28 °C) in freshwater, and the obtained compressive strength is 22.5, 24.0 and 29.2 N/mm2 ...

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Effect of Slag Composition on Phosphorus Separation

separation from steelmaking slag, steelmaking slags were reduced by carbonaceous material at high tem-perature by using an induction furnace. From the results, the effects of slag composition, temperature and oxygen partial pressure on phosphorus separation from steelmaking slag were discussed.

Get Price

Synopsis: In iron and steelmaking the composition of

2018-8-8  In stainless steelmaking various chromites are formed depending on the slag composition. Key words: Blast furnace slags, EAF slags, foaming, mineralogical composition of slags 1. Introduction Raw materials in steelmaking are pig iron and ferroalloys. In all the three processes liquid slags are used. During the reduction in the blast furnace ...

Get Price

Effect of Slag Composition on the Kinetics of

2007-5-31  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 :

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Experimental simulations of primary slag formation in ...

2013-7-18  Primary slag formation of the blast furnace ferrous burden was experimentally simulated using synthetic MgO-Al 2 O 3-CaO-SiO 2 slags with FeO, Na 2 O, or FeS additions. The combined effect of FeO and Na 2 O or FeS was also examined. The melting behaviour and viscosity of five different base slags (sinter, pellet, or lump ore) were investigated using optical dilatometry, thermogravimetric ...

Get Price

Thermodynamic calculation on the smelting slag of

Thermodynamic calculation on the smelting slag of direct recycling of electric arc furnace stainless steelmaking dust was presented. An induction furnace was used to simulate electric arc furnace smelting to recover the metals from the dust. The elements of iron, chromium and nickel in the ingot and the components of metal oxides in the slag were analyzed.

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Chemical characteristics of iron and steel slag :

2020-10-18  The primary components of iron and steel slag are limestone (CaO) and silica (SiO 2).Other components of blast furnace slag include alumina (Alsub>2 O 3) and magnesium oxide (MgO), as well as a small amount of sulfur (S), while steelmaking slag contains iron oxide (FeO) and magnesium oxide (MgO).In the case of steelmaking slag, the slag contains metal elements (such as iron) in oxide form ...

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Formation Mechanism of MgO Containing Inclusions in

2020-3-28  (EI), whose composition is listed in Table2, in a vacuum induction furnace. The initial compositions of the two kinds of slag are listed in Table3, the basicity (R = CaO/SiO2) and CaO/Al2O3 ratio of the two slags are the same, the di erence is that Slag A is MgO free while Slag B contains 10 wt. % MgO. Metals 2020, 10, x FOR PEER REVIEW 2 of 9

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slag formation steelmaking induction furnace

slag formation steelmaking induction furnace. Steelmaking based on inductive melting. erated by furnaces heated by fuel or electric arc during power transmission do not occur in the induction furnace. Depending on the quality of the feed materials, the volume of dust produced is 0.5 to 1 kg/t of melt, the slag ratio is 10 to 15 kg/t. Further ...

Get Price

MgO modification of slag from stainless steelmaking

2004-1-18  in volume of about 11% and a total disintegration of the slag. AOD slag from stainless steelmaking was re-melted in a laboratory induction furnace, together with olivine and calcinated dolomite, to investigate the prevention of disintegration by increased MgO content of the slag with small changes in CaO to SiO 2 ratio. The modified slag was ...

Get Price

Induction Furnaces and Electric Arc Furnace - Hani Tech

2018-8-3  4. The slag in induction electric furnace steelmaking has poor ability to participate in the metallurgical reaction. In electric arc furnace steelmaking, the temperature of the slag is higher than that of the molten steel, and the slag has a

Get Price

Effect of Slag Composition on the Kinetics of

2007-5-31  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 :

Get Price

Synopsis: In iron and steelmaking the composition of

2018-8-8  In stainless steelmaking various chromites are formed depending on the slag composition. Key words: Blast furnace slags, EAF slags, foaming, mineralogical composition of slags 1. Introduction Raw materials in steelmaking are pig iron and ferroalloys. In all the three processes liquid slags are used. During the reduction in the blast furnace ...

Get Price

Effect of Slag Composition on Phosphorus Separation

separation from steelmaking slag, steelmaking slags were reduced by carbonaceous material at high tem-perature by using an induction furnace. From the results, the effects of slag composition, temperature and oxygen partial pressure on phosphorus separation from steelmaking slag were discussed.

Get Price

STUDIES ON DIRECT REDUCED IRON MELTING IN

2012-7-26  furnace steelmaking. 3. DRI MELTING FOR STEELMAKING India is the only country in the world using induction furnaces on a large scale for production of steels (15.5%). For smoothening of the melting operation, periodical removal of slag is required as it gets solidifies on top of the liquid bath and hinders further melting of DRI briquettes.

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MARINE DRIVE PROTECTION BY FORMATION OF SEA

2017-3-30  slag which produced from 140 numbers of steel making plants in Bangladesh. [BRMA, 2014].This paper presents an assessment on the byproduct namely steelmaking slag resulting from scrap metal processing at induction furnace, Ladle Refining Furnace (LRF) Electric Arc furnace. The aim of

Get Price

Thermodynamic calculation on the smelting slag of

Thermodynamic calculation on the smelting slag of direct recycling of electric arc furnace stainless steelmaking dust was presented. An induction furnace was used to simulate electric arc furnace smelting to recover the metals from the dust. The elements of iron, chromium and nickel in the ingot and the components of metal oxides in the slag were analyzed.

Get Price

Formation Mechanism of MgO Containing Inclusions in

2020-3-28  (EI), whose composition is listed in Table2, in a vacuum induction furnace. The initial compositions of the two kinds of slag are listed in Table3, the basicity (R = CaO/SiO2) and CaO/Al2O3 ratio of the two slags are the same, the di erence is that Slag A is MgO free while Slag B contains 10 wt. % MgO. Metals 2020, 10, x FOR PEER REVIEW 2 of 9

Get Price

slag formation steelmaking induction furnace

slag formation steelmaking induction furnace. Steelmaking based on inductive melting. erated by furnaces heated by fuel or electric arc during power transmission do not occur in the induction furnace. Depending on the quality of the feed materials, the volume of dust produced is 0.5 to 1 kg/t of melt, the slag ratio is 10 to 15 kg/t. Further ...

Get Price

Induction Furnaces and Electric Arc Furnace - Hani Tech

2018-8-3  4. The slag in induction electric furnace steelmaking has poor ability to participate in the metallurgical reaction. In electric arc furnace steelmaking, the temperature of the slag is higher than that of the molten steel, and the slag has a

Get Price

Mineral Reactions and Slag Formation During Reduction

2017-2-6  Furnace Pellets. Ironmaking and Steelmaking, 34, 5:422-430 II Ryösä, E., Wikström, J., Lindblom, B., Rutqvist, E., ... 9.1 Formation of Potassium Slag in Olivine Fluxed Blast Furnace Pellets ... amount of liquid slag early in the blast furnace gives higher porosity which

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Effect of Slag Composition on the Kinetics of

2007-5-31  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 :

Get Price

STUDIES ON DIRECT REDUCED IRON MELTING IN

2012-7-26  furnace steelmaking. 3. DRI MELTING FOR STEELMAKING India is the only country in the world using induction furnaces on a large scale for production of steels (15.5%). For smoothening of the melting operation, periodical removal of slag is required as it gets solidifies on top of the liquid bath and hinders further melting of DRI briquettes.

Get Price

Effect of Slag Composition on Phosphorus Separation

separation from steelmaking slag, steelmaking slags were reduced by carbonaceous material at high tem-perature by using an induction furnace. From the results, the effects of slag composition, temperature and oxygen partial pressure on phosphorus separation from steelmaking slag were discussed.

Get Price

LECTURE 15 Electric Furnace S teelmaking

2017-8-4  Steelmaking in electric arc furnace has emerged as an important steelmaking process in recent years. ... Burnt lime and spar are added to help early slag formation. Iron one or mill scale may also be added if refining is required during melt - down period.

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Formation Mechanism of MgO Containing Inclusions in

2020-3-28  (EI), whose composition is listed in Table2, in a vacuum induction furnace. The initial compositions of the two kinds of slag are listed in Table3, the basicity (R = CaO/SiO2) and CaO/Al2O3 ratio of the two slags are the same, the di erence is that Slag A is MgO free while Slag B contains 10 wt. % MgO. Metals 2020, 10, x FOR PEER REVIEW 2 of 9

Get Price

MARINE DRIVE PROTECTION BY FORMATION OF SEA

2017-3-30  slag which produced from 140 numbers of steel making plants in Bangladesh. [BRMA, 2014].This paper presents an assessment on the byproduct namely steelmaking slag resulting from scrap metal processing at induction furnace, Ladle Refining Furnace (LRF) Electric Arc furnace. The aim of

Get Price

Spinel Formation for Induction Furnace Linings

2020-11-16  A STUDY ON SPINEL FORMATION AND SINTERING BEHAVIOR OF Al 2 O 3-MgO SYSTEM FOR INDUCTION FURNACE LININGS Ozan UYLAS*1,2, Muharrem TİMUÇİN3,4, Ender SUVACI1, Muammer BİLGİÇ5, Beyhan ÖZDEMİR4, Oktay UYSAL2, Uğur CENGİZ5,Özkan KURUKAVAK4, Hasan ERDOĞAN4,Yakup YALÇINKAYA4 1Andolu University, Faculty of

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