摘要
为探究CaO-SiO_2-B_2O_3-CaF_2系保护渣在连铸生产过程中发生的化学反应以及生成的主要矿相,并确定最优反应与最佳工艺条件,采用Fact Sage热力学软件对CaO-SiO_2-B_2O_3-CaF_2渣系进行热力学分析与计算,并对保护渣进行XRD检测。结果表明:采用FactSage热力学软件计算出保护渣中的主要矿相为CaSiO_3、Ca_(11)B_2Si_4O_(22)和Ca_4Si_2F_2O_7,与XRD检测结果基本一致,反应温度控制在1 553~1 633 K。该矿相流动性强、润滑效果较好,能有效提高铸坯质量,降低由于润滑不良造成漏钢的频率。
In order to explore the chemical reaction of the CaO-SiO2-B2O3-CaF2 system in the process of continuous casting production, the main ore phase, the optimal reaction and the optimum technological conditions were determined. Thermodynamic analysis and calculation ofCaO-SiO2-B2O3-CaF2 slag system were carried out by using FactSage thermodynamic software, and the XRD was detected. The results show that the main mineral phases in the, mold flux were CaSiO3, Ca11B2Si4O22, and Ca4Si2F2O7, and the results ate basically consistent with the XRD test results, and the reaction temperature is controlled between 1 553-1 633 K. The ore has good fluidity and good lubrication effect, can effectively improve the quality of cast billet, and reduce the frequency of leakage due to bad lubrication.
作者
朱立光
袁志鹏
许莹
王杏娟
ZHU Liguang YUAN Zhipeng XU Ying WANG Xingjuan(College of Metallurgy ＆ Energy, Key Laboratory for Advanced Metallurgy Technology, Hebei Province High Quality Steel Continuous Casting Engineering Technology Research Center, North China University of Science and Technology University, Tangshan 063009, China Dean＇s Office, North China University of Science and Technology University, Tangshan 063009, China)
出处
《铸造技术》
CAS
北大核心
2017年第4期863-866,共4页
Foundry Technology
基金
国家自然科学青年基金资助项目(51404088)
河北省自然科学基金资助项目(E2015209217)
