| CaO-SiO2-Fe2O3-MnO2-MgO-P2O5系熔剂对钢液脱磷、回磷的实验研究 |
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| 引用本文： | 郭上型,董元篪,陈二保,王海川.CaO-SiO2-Fe2O3-MnO2-MgO-P2O5系熔剂对钢液脱磷、回磷的实验研究[J].钢铁,2000,35(3):19-21. |
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| 作者姓名： | 郭上型 董元篪 陈二保 王海川 |
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| 作者单位： | 华东冶金学院 |
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| 摘 要： | 在１８５３Ｋ的温度下，利用ＣａＯ－ＳｉＯ２－ＦｅＯ３－ＭｎＯ２－ＭｇＯ－Ｐ２Ｏ５系熔剂，对钢液进行脱磷、回磷实验，研究熔剂碱度ＣａＯ／ＳｉＯ２和氧化性（Ｆｅ２Ｏ３＋ＭｎＯ２）对钢液脱磷、回磷的影响，研究得出，防止钢液回磷的先决条件是：控制熔剂碱度和氧化性大于其临界值。实验发现，用适量ＢａＯ取代ＣａＯ基熔剂中的ＣａＯ，可有效控制钢液的回磷。
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| 关 键 词： | 熔剂 脱磷 回磷 临界组成 炼钢 |
DEPHOSPHORIZATION AND REPHOSPHORIZATION OF LIQUID STEEL BY LIME-BASED FLUXES |
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| GUO Shangxing,DONG Yuanchi,CHEN Erbao,WANG Haichuan.DEPHOSPHORIZATION AND REPHOSPHORIZATION OF LIQUID STEEL BY LIME-BASED FLUXES[J].Iron & Steel,2000,35(3):19-21. |
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| Authors: | GUO Shangxing DONG Yuanchi CHEN Erbao WANG Haichuan |
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| Affiliation: | East China University of Metallurgy |
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| Abstract: | With simulation of the composition of slag and liquid steel at tapping, the experiments of dephosphorization and rephosphorization by using CaO SiO 2 Fe 2O 3 MnO 2 MgO P 2O 5 fluxes were performed at 1853 K in the laboratory scale The influence of basicity (CaO/SiO 2) and oxidizability (Fe 2O 3+MnO 2) of the fluxes on dephosphorization and rephosphorization was investigated The condition for preventing rephosphorization is to control (CaO/SiO 2) and (Fe 2O 3+MnO 2) larger than their critical one It is also found that the using BaO instead of CaO in the fluxes can effectively control the rephosphorization of liquid steel |
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| Keywords: | CaO based flux dephosphorization rephosphorization critical composition |
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