Laboratory study was carried out on deep dephosphorization of liquid steel byBaO-based fluxes at 1600°C to achieve ultra low phosphorus level in the steel. A dynamic model ofdephosphorization of Liquid steel by B...Laboratory study was carried out on deep dephosphorization of liquid steel byBaO-based fluxes at 1600°C to achieve ultra low phosphorus level in the steel. A dynamic model ofdephosphorization of Liquid steel by BaO-based fluxes was established. According to the model, thecontrolling step of dephosphorization by BaO-based fluxes was the mass-transfer of phosphorus insteel phase under the condition of low phosphorus liquid steel. It is estimated that the apparentrate constant of dephosphorization by BaO-based fluxes was 0.4xl0^(-3)-8.2xl0^(-3) g/(cm^2 centre tos) and the mass-transfer coefficient of phosphorus in bulk steel was 0.025-0.04 cm/s.展开更多
A mathematical model was established and applied to simulate thedecarburization of RH-MFB process in Pansteel Company. Study of theeffects of w_[C]0, w_[O]0, Ar flowrate, evaluation rate the MFB lanceblowing parameter...A mathematical model was established and applied to simulate thedecarburization of RH-MFB process in Pansteel Company. Study of theeffects of w_[C]0, w_[O]0, Ar flowrate, evaluation rate the MFB lanceblowing parameters on the decarburization process was car- Ried out.The results showed that this model could give the quantitativeunderstanding of the process, especially the behavior of MFB Lanceblowing. This model has realized the optimum process of RH-MFBrefining for ultra-low carbon steels in Pansteel.展开更多
文摘Laboratory study was carried out on deep dephosphorization of liquid steel byBaO-based fluxes at 1600°C to achieve ultra low phosphorus level in the steel. A dynamic model ofdephosphorization of Liquid steel by BaO-based fluxes was established. According to the model, thecontrolling step of dephosphorization by BaO-based fluxes was the mass-transfer of phosphorus insteel phase under the condition of low phosphorus liquid steel. It is estimated that the apparentrate constant of dephosphorization by BaO-based fluxes was 0.4xl0^(-3)-8.2xl0^(-3) g/(cm^2 centre tos) and the mass-transfer coefficient of phosphorus in bulk steel was 0.025-0.04 cm/s.
文摘A mathematical model was established and applied to simulate thedecarburization of RH-MFB process in Pansteel Company. Study of theeffects of w_[C]0, w_[O]0, Ar flowrate, evaluation rate the MFB lanceblowing parameters on the decarburization process was car- Ried out.The results showed that this model could give the quantitativeunderstanding of the process, especially the behavior of MFB Lanceblowing. This model has realized the optimum process of RH-MFBrefining for ultra-low carbon steels in Pansteel.
