TY - JOUR
T1 - Mineralogical constitution of powders for continuous casting moulds
AU - Cruz, A.
AU - Chávez, F.
AU - Romero, A.
AU - Palacios, E.
PY - 2007/3
Y1 - 2007/3
N2 - Powder fluxes perform several key functions in the continuous casting of steel slabs, both at the surface steel product and in the control of the heat transfer during the process. The mineralogical constitution and the melting solidification behaviour of several commercial fluxes were determined to establish design parameters for the production of powder fluxes used in the continuous casting of steel slabs. The characterisation of the commercial fluxes showed that they are produced simply by mechanical mixing of base materials such as feldspars and clays. It was found that their melting behaviour depends on its chemical composition, mineralogical species contents and particle size; in particular, a change in the fluidising effect of CaF2 was observed when the species content is >12%. Therefore, flux powders that fulfil the thermal requirements for the production of low carbon and medium carbon steels were produced from minerals available in the local market.
AB - Powder fluxes perform several key functions in the continuous casting of steel slabs, both at the surface steel product and in the control of the heat transfer during the process. The mineralogical constitution and the melting solidification behaviour of several commercial fluxes were determined to establish design parameters for the production of powder fluxes used in the continuous casting of steel slabs. The characterisation of the commercial fluxes showed that they are produced simply by mechanical mixing of base materials such as feldspars and clays. It was found that their melting behaviour depends on its chemical composition, mineralogical species contents and particle size; in particular, a change in the fluidising effect of CaF2 was observed when the species content is >12%. Therefore, flux powders that fulfil the thermal requirements for the production of low carbon and medium carbon steels were produced from minerals available in the local market.
KW - Continuous casting mould
KW - Fluxes
KW - Ore mineralogy
KW - Particle size
KW - Steel
UR - http://www.scopus.com/inward/record.url?scp=35348974047&partnerID=8YFLogxK
U2 - 10.1179/174328507X163922
DO - 10.1179/174328507X163922
M3 - Artículo
SN - 0371-9553
VL - 116
SP - 65
EP - 71
JO - Transactions of the Institutions of Mining and Metallurgy, Section C: Mineral Processing and Extractive Metallurgy
JF - Transactions of the Institutions of Mining and Metallurgy, Section C: Mineral Processing and Extractive Metallurgy
IS - 1
ER -