Skip to main content
Top

2018 | OriginalPaper | Chapter

Current State Art of Hot Thermocouple Technology—Novel Way for the Study of Mold Flux High-Temperature Properties

Authors : Lei Zhang, Wanlin Wang, Lejun Zhou

Published in: TMS 2018 147th Annual Meeting & Exhibition Supplemental Proceedings

Publisher: Springer International Publishing

Activate our intelligent search to find suitable subject content or patents.

search-config
loading …

Abstract

Hot Thermocouple Technology has been developed and approved to be a novel method to study the high-temperature related properties of molten slag. In this study, it will first give the development of Hot Thermocouple Technology, and its typical application to the mold flux. One example of crystallization process of the mold flux for casting low carbon (LC flux) and medium carbon steels (MC flux) were investigated by using Double Hot Thermocouple Technology (DHTT). The results of LC flux showed that, the glass phase firstly formed at the low temperature side; then, the fine crystals precipitated at the liquid/glass interface and grew toward glass and later on to liquid phase. However, the crystals directly formed at the low temperature side when MC flux was under cooling process and grew toward the high temperature side; which indicated the crystallization ability of MC flux was stronger than LC flux. Another crystallization sample of CaO-SiO2-B2O3 based fluoride-free mold flux (F-free flux) was studied by using Single Hot Thermocouple Technology (SHTT), and the results showed the crystals first precipitated in the middle of sample and moved toward the thermocouple side, then the precipitated crystals grew up and new crystals formed in the middle of sample and moved toward the side, until the crystallization was completed and reached a steady state; the crystallization mechanism of the F-free flux was 1-dimensional growth.

Dont have a licence yet? Then find out more about our products and how to get one now:

Springer Professional "Wirtschaft+Technik"

Online-Abonnement

Mit Springer Professional "Wirtschaft+Technik" erhalten Sie Zugriff auf:

  • über 102.000 Bücher
  • über 537 Zeitschriften

aus folgenden Fachgebieten:

  • Automobil + Motoren
  • Bauwesen + Immobilien
  • Business IT + Informatik
  • Elektrotechnik + Elektronik
  • Energie + Nachhaltigkeit
  • Finance + Banking
  • Management + Führung
  • Marketing + Vertrieb
  • Maschinenbau + Werkstoffe
  • Versicherung + Risiko

Jetzt Wissensvorsprung sichern!

Springer Professional "Technik"

Online-Abonnement

Mit Springer Professional "Technik" erhalten Sie Zugriff auf:

  • über 67.000 Bücher
  • über 390 Zeitschriften

aus folgenden Fachgebieten:

  • Automobil + Motoren
  • Bauwesen + Immobilien
  • Business IT + Informatik
  • Elektrotechnik + Elektronik
  • Energie + Nachhaltigkeit
  • Maschinenbau + Werkstoffe




 

Jetzt Wissensvorsprung sichern!

Literature
1.
go back to reference Zhou LJ, Wang WL et al (2012) A kinetic study of the effect of basicity on the mold fluxes crystallization. Metall Mater Trans B 43(2):354–362CrossRef Zhou LJ, Wang WL et al (2012) A kinetic study of the effect of basicity on the mold fluxes crystallization. Metall Mater Trans B 43(2):354–362CrossRef
2.
go back to reference Mills KC, Fox AB, Li Z, Thackray RP (2005) Performance and properties of mould fluxes. Ironmak Steelmak 32(1):26–34CrossRef Mills KC, Fox AB, Li Z, Thackray RP (2005) Performance and properties of mould fluxes. Ironmak Steelmak 32(1):26–34CrossRef
3.
go back to reference Wang WL, Cramb AW (2005) The observation of mold flux crystallization on radiative heat transfer. ISIJ Int 45(12):1864–1870CrossRef Wang WL, Cramb AW (2005) The observation of mold flux crystallization on radiative heat transfer. ISIJ Int 45(12):1864–1870CrossRef
4.
go back to reference Yamauchi A, Sorimachi K, Sakuraya T, Fujii T (1993) Heat transfer between mold and strand through mold flux film in continuous casting of steel. ISIJ Int 33(1):140–147CrossRef Yamauchi A, Sorimachi K, Sakuraya T, Fujii T (1993) Heat transfer between mold and strand through mold flux film in continuous casting of steel. ISIJ Int 33(1):140–147CrossRef
5.
go back to reference Li C, Thomas BG (2004) Thermomechanical finite-element model of shell behavior in continuous casting of steel. Metall Mater Trans B 35(6):1151–1172CrossRef Li C, Thomas BG (2004) Thermomechanical finite-element model of shell behavior in continuous casting of steel. Metall Mater Trans B 35(6):1151–1172CrossRef
6.
go back to reference Sridhar S, Mills KC, Mallaband ST (2002) Powder consumption and melting rates of continuous casting fluxes. Ironmak Steelmak 29(3):194–198CrossRef Sridhar S, Mills KC, Mallaband ST (2002) Powder consumption and melting rates of continuous casting fluxes. Ironmak Steelmak 29(3):194–198CrossRef
7.
go back to reference Gu K, Wang WL, Zhou LJ et al (2012) The effect of basicity on the radiative heat transfer and interfacial thermal resistance in continuous casting. Metall Mater Trans B 43(4):937–945CrossRef Gu K, Wang WL, Zhou LJ et al (2012) The effect of basicity on the radiative heat transfer and interfacial thermal resistance in continuous casting. Metall Mater Trans B 43(4):937–945CrossRef
8.
go back to reference Wang WL, Cramb AW (2010) Study of the effects of the mold surface and solid mold flux crystallization on radiative heat transfer rates in continuous casting. Steel Res Int 81(6):446–452CrossRef Wang WL, Cramb AW (2010) Study of the effects of the mold surface and solid mold flux crystallization on radiative heat transfer rates in continuous casting. Steel Res Int 81(6):446–452CrossRef
9.
go back to reference Wei J, Wang WL et al (2014) Effect of Na2O and B2O3 on the crystallization behavior of low fluorine mold fluxes for casting medium carbon steels. Metall Mater Trans B 45(2):643–652CrossRef Wei J, Wang WL et al (2014) Effect of Na2O and B2O3 on the crystallization behavior of low fluorine mold fluxes for casting medium carbon steels. Metall Mater Trans B 45(2):643–652CrossRef
10.
go back to reference Hering L, Heller HP, Fenzke HW (1992) Investigations for flux power selection in slab continuous-casting. Stahl Und Eisen 112(8):61–65 Hering L, Heller HP, Fenzke HW (1992) Investigations for flux power selection in slab continuous-casting. Stahl Und Eisen 112(8):61–65
11.
go back to reference Sakai H, Kawashima T, Shiomi T, Watanabeand K, Iida T (1997) Molten the interface. In: The final step involves the dissolution of the Slags, Slags and Salts’97 Conference, Warrendale, PA Sakai H, Kawashima T, Shiomi T, Watanabeand K, Iida T (1997) Molten the interface. In: The final step involves the dissolution of the Slags, Slags and Salts’97 Conference, Warrendale, PA
12.
go back to reference Bhamra M, Charlesworth M, Wong S, Sawyers VD, Cramb AW (1996). In: 54th Electric Furnace Conference, Dallas, TX, 9–12 Dec 1996 Bhamra M, Charlesworth M, Wong S, Sawyers VD, Cramb AW (1996). In: 54th Electric Furnace Conference, Dallas, TX, 9–12 Dec 1996
13.
go back to reference Ordway F (1952) Techniques for growing and mounting small single crystals of refractory compounds. National Bureau of StandardsCrossRef Ordway F (1952) Techniques for growing and mounting small single crystals of refractory compounds. National Bureau of StandardsCrossRef
14.
go back to reference Welch JH (1954) A simple microscope attachment for observing high-temperature phenomena. J Sci Instrum 31(12):458CrossRef Welch JH (1954) A simple microscope attachment for observing high-temperature phenomena. J Sci Instrum 31(12):458CrossRef
15.
go back to reference Kuranaga T, Kashiwaya Y, Ishii K (1995). In: International Symposium on Advanced Materials and Technology for 2lst Century. JIM’95 Fall Meeting. Honolulu Kuranaga T, Kashiwaya Y, Ishii K (1995). In: International Symposium on Advanced Materials and Technology for 2lst Century. JIM’95 Fall Meeting. Honolulu
16.
17.
go back to reference Uhlman DR (1983) Glass formation, a contemporary view. J Am Ceram Soc 66(2):95–100CrossRef Uhlman DR (1983) Glass formation, a contemporary view. J Am Ceram Soc 66(2):95–100CrossRef
18.
go back to reference Kashiwaya Y, Cicutti CE et al (1998) Development of double and for in situ observation and single hot thermocouple technique measurement of mold slag crystallization. ISIJ Int 38(4):348–356CrossRef Kashiwaya Y, Cicutti CE et al (1998) Development of double and for in situ observation and single hot thermocouple technique measurement of mold slag crystallization. ISIJ Int 38(4):348–356CrossRef
19.
go back to reference Kashiwaya Y, Cicutti CE, Cramb AW (1998) An investigation of the crystallization of a continuous casting mold slag using of the single hot thermocouple technique. ISIJ Int 38(4):357–365CrossRef Kashiwaya Y, Cicutti CE, Cramb AW (1998) An investigation of the crystallization of a continuous casting mold slag using of the single hot thermocouple technique. ISIJ Int 38(4):357–365CrossRef
20.
go back to reference Zhou LJ, Wang WL, Huang DY et al (2012) In situ observation and investigation of mold flux crystallization by using double hot thermocouple technology. Metall Mater Trans B 43(4):925–936CrossRef Zhou LJ, Wang WL, Huang DY et al (2012) In situ observation and investigation of mold flux crystallization by using double hot thermocouple technology. Metall Mater Trans B 43(4):925–936CrossRef
21.
go back to reference Sun NX, Liu XD, Lu K (1996) An explanation to the anomalous avrami exponent. Scripta Mater 34:1201–1207CrossRef Sun NX, Liu XD, Lu K (1996) An explanation to the anomalous avrami exponent. Scripta Mater 34:1201–1207CrossRef
22.
go back to reference Wang WL (2007) PhD thesis, Carnegie Mellon University Wang WL (2007) PhD thesis, Carnegie Mellon University
23.
go back to reference Christian JW (2002) The theory of transformations in metals and alloys, 3rd edn. Pergamon Press Ltd, London, UK Christian JW (2002) The theory of transformations in metals and alloys, 3rd edn. Pergamon Press Ltd, London, UK
Metadata
Title
Current State Art of Hot Thermocouple Technology—Novel Way for the Study of Mold Flux High-Temperature Properties
Authors
Lei Zhang
Wanlin Wang
Lejun Zhou
Copyright Year
2018
DOI
https://doi.org/10.1007/978-3-319-72526-0_19

Premium Partners