effect fluoride slag

Effect of Fluoride on Slag - 911metallurgist

Table of ContentsMaterialsProcedureIngot MeltingIngot ProcessingPreparation of Test SpecimensTest Procedure and ResultsFluoride InclusionsMechanical and Fatigue ...

Read More+

Effect of fluorine and chlorine on slag melting ...

Nov 10, 2011 · The effect of Na 2 O on the fusion temperature of slag of hazardous waste including fluorine and chlorine is the most marked: when the Na 2 O content changes from 0% to 3%, DT decreases 124 °C; when it rises from 3% to 6%, ST decreases 64 °C; and when it changes from 6% to 9%, HT drops 40 °C. Meanwhile the flow temperature FT is also reduced ...

Read More+

Effect of Ce2O3 on the fluoride vaporization of CaF2–CaO ...

Mar 01, 2021 · In order to explore the slag with less fluoride vaporization for vacuum electroslag remelting of Ce-bearing steel, the fluoride vaporization behavior of CaF 2 –CaO–Al 2 O 3-(Ce 2 O 3) slag was investigated by thermo gravimetry analysis at 1673 K.For the purpose of figuring out the mechanism of the Ce 2 O 3 effect on fluoride vaporization in slags, the viscosity of slags was

Read More+

The Effect of Calcium Fluoride on Slag Viscosity ...

Jul 06, 2011 · The effect of CaF2 on the viscosity of high-basicity Al2O3-CaO-MgO-SiO2 (-CaF2) slags for secondary steelmaking was studied using a Brookfield digital viscometer. The addition of approximately 3 mass pct CaF2 could decrease the liquidus temperature substantially in the case of high CaO containing slags, leading to good flowability of the slag at the temperature of the ladle treatment.

Read More+

The effect of Li2O on the evaporation and structure of low ...

Jan 01, 2021 · Fluoride evaporation of CaF 2 –CaO–Al 2 O 3 –MgO–TiO 2-(Li 2 O) slag with different Li 2 O contents for vacuum electroslag remelting was investigated by thermogravimetry (TG), differential scanning calorimetry (DSC), and mass spectrometer (MS) measurements in conjunction with thermodynamic analysis, and the effects of Li 2 O on the melting temperature and viscosity of slag

Read More+

Effect of Fluoride Containning Slag on Oxide Inclusions in ...

Fluoride containing slag, which influences the non-metallic inclusions to a great extent, has been widely used for electroslag remelting process. The present paper focuses on the effect of fluoride containing slag on the inclusions in electroslag ingot based on the interaction of slag-metal interface.

Read More+

The Effect of Calcium Fluoride on Slag Viscosity ...

Jul 06, 2011 · The effect of CaF2 on the viscosity of high-basicity Al2O3-CaO-MgO-SiO2 (-CaF2) slags for secondary steelmaking was studied using a Brookfield digital viscometer. The addition of approximately 3 mass pct CaF2 could decrease the liquidus temperature substantially in the case of high CaO containing slags, leading to good flowability of the slag at the temperature of the ladle treatment.

Read More+

Effect of Fluoride Containning Slag on Oxide Inclusions in ...

The present paper focuses on the effect of fluoride containing slag on the inclusions in electroslag ingot based on the interaction of slag-metal interface. In this work, steel grade MC5 and ...

Read More+

Investigation of fluoride evaporation from CaF 2 –CaO–Al 2 ...

Jul 23, 2020 · The effect of Li 2 O on the fluoride evaporation of the CaF 2 –CaO–Al 2 O 3 –MgO–TiO 2 –(Li 2 O) slag was investigated in the temperature range 1743–1803 K using isothermal ...

Read More+

Effect of Fluoride Containning Slag on Oxide Inclusions in ...

Fluoride containing slag, which influences the non-metallic inclusions to a great extent, has been widely used for electroslag remelting process. The present paper focuses on the effect of fluoride containing slag on the inclusions in electroslag ingot based on the interaction of slag-metal interface.

Read More+

Effect of fluoride inclusions on induction-slag-melted Ti ...

"The effect of fluoride inclusions on the properties of titanium produced from the Bureau of Mines developed induction slag melting process is of concern to members of the titanium industry. The objective of the research was to determine the effect of caf2 inclusions on the properties of titanium and its survival rate during melting.

Read More+

Effect of Slag on Inclusions During Electroslag Remelting ...

Fluoride containing slag, which influences the non-metallic inclusions to a great extent, has been widely used for the electroslag remelting process. The current paper focuses on the effect of fluoride containing slag on the inclusions in electroslag ingots based on the interaction of the slag-metal interface and electroslag remelting process.

Read More+

The Effect of Calcium Fluoride on Slag Viscosity - NASA/ADS

The effect of CaF 2 on the viscosity of high-basicity Al 2 O 3 -CaO-MgO-SiO 2 (-CaF 2 ) slags for secondary steelmaking was studied using a Brookfield digital viscometer. The addition of approximately 3 mass pct CaF 2 could decrease the liquidus temperature substantially in the case of high CaO containing slags, leading to good flowability of the slag at the temperature of the ladle treatment.

Read More+

Effect of the heating rate and premelting process on the ...

Jul 09, 2020 · The effect of the premelting process on the melting point. Metallurgical slag can be divided into synthetic slag and premelted slag according to different preparation techniques.

Read More+

Anionic Effect of Chloride, Fluoride, And Sulfide Ions On ...

Sunghee Lee, Dong Joon Min. Anionic effect of chloride, fluoride, and sulfide ions on the viscosity of slag melt. Journal of The American Ceramic Society, 2017: volume 100, pages 2543–2552. Go To Journal of The American Ceramic Society

Read More+

Effect of the Al2O3 Content in the Slag on the Remelting ...

The effect of higher SiO 2 contents in the remelting slag on the NMI composition of a hot work tool steel in the studies by Schneider et al. [23, 29] confirms earlier results in the studies by Holzgruber and Plöckinger and Allibert et al. [12, 20] that larger inclusions with high SiO 2 contents are formed.

Read More+

The effect of calcium fluoride on slag viscosity

The present work is to study slag phenomena in steelmaking process. In order to attain thegoal, a number of high temperature experiments and simulation experiments were carried out. Four master slags were used to study the effect of CaF2 on slag viscosity.

Read More+

Defects / Imperfections in Welds - Slag Inclusions - TWI

The more fluid fluoride slag designed for positional welding is less easily removed. Basic fluxes - the high proportion of calcium carbonate (limestone) and calcium fluoride (fluospar) in the flux reduces the oxygen content of the weld pool and therefore its surface tension. The slag is more fluid than that produced with the rutile coating.

Read More+

(PDF) The effect of Li 2 O on the evaporation and ...

The results show that, with the increase in Li 2 O content from 0 to 5.15 wt%, the evaporation of fluoride from the molten slag increased significantly, melting temperature and viscosity of slag ...

Read More+

Effect of Slag on Inclusions During Electroslag Remelting ...

May 14, 2014 · Fluoride containing slag, which influences the non-metallic inclusions to a great extent, has been widely used for the electroslag remelting process. The current paper focuses on the effect of fluoride containing slag on the inclusions in electroslag ingots based on the interaction of the slag-metal interface and electroslag remelting process.

Read More+

Effect of Slag on Titanium, Silicon, and Aluminum Contents ...

Fluoride-based slag, which is exposed to liquid metal directly, influences the chemical composition of ESR ingots to a large extent. The present paper focuses on the effect of slag on the titanium, silicon, and aluminum contents in ingots based on the interaction of the slag and metal.

Read More+

Investigation of fluoride evaporation from CaF 2 –CaO–Al 2 ...

Jul 23, 2020 · The effect of Li 2 O on the fluoride evaporation of the CaF 2 –CaO–Al 2 O 3 –MgO–TiO 2 –(Li 2 O) slag was investigated in the temperature range 1743–1803 K using isothermal ...

Read More+

Effect of Fluoride Containning Slag on Oxide Inclusions in ...

The present paper focuses on the effect of fluoride containing slag on the inclusions in electroslag ingot based on the interaction of slag-metal interface. In this work, steel grade MC5 and ...

Read More+

Effect of the Al2O3 Content in the Slag on the Remelting ...

The effect of higher SiO 2 contents in the remelting slag on the NMI composition of a hot work tool steel in the studies by Schneider et al. [23, 29] confirms earlier results in the studies by Holzgruber and Plöckinger and Allibert et al. [12, 20] that larger inclusions with high SiO 2 contents are formed.

Read More+

(PDF) Effect of TiO 2 on fluoride evaporation from CaF 2 ...

The effect of CaF2 substitution with TiO2 on the crystallization characteristics of low-fluoride slag was studied using differential scanning calorimetry (DSC) combined with XRD and SEM-EDS analysis.

Read More+

Effect of MgO and SiO 2 on surface tension of fluoride ...

Nov 15, 2014 · When SiO2 content (mass fraction) is from 2% to 8%, surface tension decreases with the increase of SiO2 content. Additionally, the relationship between surface tension and optical basicity is a monotonically increasing linear function. Research findings can provide important reference for slag design and the study of slag-metal interfacial tension.

Read More+

The effect of calcium fluoride on slag viscosity

The present work is to study slag phenomena in steelmaking process. In order to attain thegoal, a number of high temperature experiments and simulation experiments were carried out. Four master slags were used to study the effect of CaF2 on slag viscosity.

Read More+

Acid Leaching Aluminum from Boiler Slag - Effect of ...

The objectives of this work are to study the influence of fluoride additives on aluminum recycling from the boiler slag. The effect of adding different amounts of fluoride, such as NaF, NH4F, KF and CaF2, was investigated. An elemental analysis of aqueous solutions leached by sulfuric acid and hydrochloric acid was determined by EDTA-Na2-ZnCl2 titration method.

Read More+

What Is Slag in Welding? - Welding Headquarters

Mar 01, 2021 · What is the effect of flux coating on weld slag? ... Fluoride-free coatings are utilized for smooth weld joint profiles and to remove the slag with ease. Flux coatings with higher fluoride content are more fluid in nature. These flux coatings are less easy to chip off.

Read More+

Anionic effect of chloride, fluoride, and sulfide ions on ...

Mar 20, 2017 · The effect of the addition of CaX (X=Cl 2, F 2 and S) on the viscous behavior and structure of CaO–SiO 2 –Al 2 O 3 –MgO–CaX slag was investigated by measuring its viscosity. The viscosity of the slag without CaX gradually decreased with an increase in the C/S ratio because of the depolymerization of the silicate groups in the slag.

Read More+

Effect of CaF2 substitution with TiO2 on the ...

EffEct of c af2SuBStItutIon wIth t io2on thE cryStallIzatIon charactErIStIcS of low-fluorIdE Slag for ElEctroSlag rEMEltIng J.-t. Ju *, J.-l an, g.-h.Ji School of Metallurgical Engineering, Xi’an University of Architecture and Technology, Xi’an, China

Read More+

Effect of TiO2 on the Viscosity and Slag Structure in ...

Jan 13, 2012 · Cheng-bin Shi, Ding-li Zheng, Seung-ho Shin, Jing Li, Jung-wook Cho, Effect of TiO2 on the viscosity and structure of low-fluoride slag used for electroslag remelting of Ti-containing steels, International Journal of Minerals, Metallurgy, and Materials, 10.1007/s12613-017-1374-9,

Read More+