高铬不锈钢BaO基渣系脱磷的研究

特殊钢 ›› 2005, Vol. 26 ›› Issue (6): 14-15.

高铬不锈钢BaO基渣系脱磷的研究

吴永来

东北大学钢铁冶金系，沈阳110006

收稿日期:2005-06-06 出版日期:2005-11-08 发布日期:2023-04-11
作者简介:吴永来(1965-),男，教授级高工，1988年毕业于东北大学钢铁冶金系，从事技术研究开发。

A Study on Dephosphorization of High Chromium Stainless Steel With BaO-Base Slag System

Wu Yonglai

Department of Ferrous Metallurgy,Northeaster University,Shenyang 110006

Received:2005-06-06 Published:2005-11-08 Online:2023-04-11

摘要/Abstract

摘要： 在5 kg MgO坩埚中频感应炉中,用成分(%)为45~65BaO、35~55BaF₂、3~7Cr₂O₃渣系对成分(%)为0.12~0.40C、10.06~18.89Cr、0.60~11.00Ni,精炼温度1 853~1 893 K的不锈钢水进行脱磷试验和研究。实验结果表明,该试验渣系能在精炼期将高铬不锈钢水中的磷从0.029%降至0.013%,平均脱磷率超过20%;当(BaO)/(BaF₂)为60/40、初始硅含量≤0.08%、精炼温度≤1 600℃(1 873 K)、初始[Cr]≤15%时,可取得较好的高铬不锈钢水脱磷效果。

关键词: 高铬不锈钢, BaO-BaF?-Cr?O? 渣系, 精炼, 脱磷

Abstract: The test and study on dephosphorization of 0.12～0.40C,10.06～18.89Cr,0.60～11.00Ni molten stainless steel at refining temperature between 1853 K and 1893 K has been carried out in a 5 kg medium frequency induction furnace with MgO crucible by using 45~65BaO,35～55BaF₂,3~7 Cr₂O₃ slag series. The test results showed that the phosphorus content in molten high chromium stainless steel in refining period decreased to 0.013% from 0.029% by using the test slag series,the dephosphoriing ratio was more than 20%;and as(BaO)/(BaF₂)was 60/40,initial silicon content in steel ≤0.08%,refining temperature ≤1600℃ (1873K) and initial [Cr]%≤15%,the beter dephosphorization effect of molten high chromium stainless steel could be obtained.

Key words: High Chromium Stainless Steel,BaO-BaF?-Cr?O?Slag Series,Refining,Dephosphorization

吴永来. 高铬不锈钢BaO基渣系脱磷的研究[J]. 特殊钢, 2005, 26(6): 14-15.

Wu Yonglai. A Study on Dephosphorization of High Chromium Stainless Steel With BaO-Base Slag System[J]. Special Steel, 2005, 26(6): 14-15.

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