Effective Mechanism of B2O3 on the Structure and Viscosity of CaO–SiO2–B2O3‐based Melts
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DOI: 10.1002/srin.202000531
Abstract: To have a further study for fluorine‐free mold fluxes, the structure, viscosity characteristics, and crystallization behavior of CaO–SiO2–B2O3‐based melts are studied combing molecular dynamics (MD) simulation and various experiments. The results show that, in the… read more here.
Keywords: viscosity; structure; sio2 b2o3; b2o3 ... See more keywords
Stability of Fluorine-Free CaO-SiO2-Al2O3-B2O3-Na2O Mold Fluxes
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DOI: 10.1007/s11663-016-0907-3
Abstract: B2O3 and Na2O are key components of fluorine-free mold fluxes for continuous casting, but both are highly volatile, which affects the flux stability. This paper investigated the evaporation of the SiO2-CaO-Al2O3-B2O3-Na2O fluxes (Na2O: 6 to… read more here.
Keywords: cao sio2; evaporation; b2o3 na2o;
Effect of Slag Composition on the Crystallization Kinetics of Synthetic CaO-SiO2-Al2O3-MgO Slags
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DOI: 10.1007/s11663-018-1167-1
Abstract: The crystallization kinetics of CaO-SiO2-Al2O3-MgO (CSAM) slags was studied with the aid of single hot thermocouple technique (SHTT). Kinetic parameters such as the Avrami exponent (n), rate coefficient (K), and effective activation energy of crystallization… read more here.
Keywords: al2o3 mgo; crystallization; sio2 al2o3; cao sio2 ... See more keywords
Experimental Study on the Formation of V-Rich Spinel Phase in CaO-SiO2-MgO-FeOt-Al2O3-V2O3-P2O5 Slags at 1573 K (1300 °C)
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DOI: 10.1007/s11663-018-1486-2
Abstract: To concentrate vanadium dissolved in steelmaking slag and to separate the obtained vanadium (V)-concentrating phase by a magnetic method, the mineral phases in a CaO-SiO2-MgO-FeOt-Al2O3-V2O3-P2O5 system at 1573 K (1300 °C) were characterized by scanning-electron… read more here.
Keywords: phase; spinel; spinel phase; cao sio2 ... See more keywords
Fundamentals of Hydrogen Solubility in Calcium-Alumino-Silicate Molten Fluxes Containing NaF
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DOI: 10.1007/s11663-018-1495-1
Abstract: The effect of the NaF and CaO/SiO2 ratio (mass percentage ratio) on hydrogen solubility in a CaO-SiO2-Al2O3-NaF system was studied and correlated to the structural units of the molten flux. Fourier transformed infrared, Raman, and… read more here.
Keywords: cao sio2; hydrogen solubility; sio2 ratio;
Liquidus and phase equilibria in CaO−SiO2−5%MgO−20%Al2O3−TiO2 system
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DOI: 10.1007/s11771-017-3407-y
Abstract: The single hot thermocouple technique (SHTT) and high temperature equilibrium technique were combined to investigate the phase diagram of the CaO−SiO2−5%MgO−20%Al2O3−TiO2 system. The 1300 °C to 1500 °C liquidus lines are calculated according to the… read more here.
Keywords: tio2; phase; mgo al2o3; cao ... See more keywords
Effect of NaF and CaO/SiO2 Mass pct. on the Hydrogen Dissolution Behavior in Calcium-Silicate-Based Molten Fluxes
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DOI: 10.1007/s12540-019-00296-1
Abstract: The effect of NaF and CaO/SiO2 mass pct. ratio (C/S) on the hydrogen solubility in terms of the hydroxyl capacity of the CaO–SiO2–NaF welding flux system was investigated at 1823 K. As a cost-effective alternative to… read more here.
Keywords: cao sio2; cao; mass pct; dissolution ... See more keywords
Design and Development of Submerged Arc Welding Slags Using CaO-SiO2-CaF2 and CaO-SiO2-Al2O3 System
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DOI: 10.1007/s12633-019-0068-5
Abstract: The aim of present study is to investigate the physicochemical and thermophysical behaviour of submerged arc welding slags designed by CaO-SiO2-CaF2 and CaO-SiO2-Al2O3 system. Slag was produced during submerged arc welding using laboratory prepared agglomerated… read more here.
Keywords: submerged arc; arc welding; cao sio2; welding slags ... See more keywords
Investigations of Surface Properties of SAW Fluxes Using CaO-SiO2-TiO2 & Al2O3-CaO-SiO2 Ternary Phase Systems
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DOI: 10.1007/s12633-020-00787-6
Abstract: In the present paper, investigation on wettability and contact angle measurement of twenty-one SAW fluxes for CaO-SiO2-TiO2 & Al2O3-CaO-SiO2 welding flux system at a temperature of 1300 °C was studied. Wettability observed by measuring the… read more here.
Keywords: cao sio2; saw fluxes; contact angle;
Volatilization behaviour and volatilization kinetics of CaF2–Na2O–CaO–SiO2–Al2O3–MgO–B2O3 synthetic mould flux
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DOI: 10.1007/s42243-019-00245-7
Abstract: To reduce the volatilization of the volatile-containing slags and obtain accurate measurement results of slag performance, the volatility degree and deviation mechanism must be determined. Non-isothermal thermogravimetric analysis at different heating rates was used to… read more here.
Keywords: mould flux; sio2 al2o3; na2o cao; cao sio2 ... See more keywords
Effect of CaO/SiO2 ratio on phase transformation and properties of anorthite-based ceramics from coal fly ash and steel slag
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DOI: 10.1016/j.ceramint.2019.11.254
Abstract: Abstract Anorthite-based ceramics were produced entirely from coal fly ash and steel slag. The effect of the CaO/SiO2 ratio (0.12–0.8) on the phase transitions was examined by adding steel slag to coal fly ash in… read more here.
Keywords: cao sio2; anorthite based; phase; sio2 ratio ... See more keywords