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| 高钛焊丝钢CaO-Al2O3基专用保护渣熔化特性分析 | |
| 引用本文： | 朱立光,张晓仕,王杏娟,康爱元,杨斌,肖鹏程.高钛焊丝钢CaO-Al2O3基专用保护渣熔化特性分析[J].中国冶金,2020,30(10):9-16. |
| 作者姓名： | 朱立光 张晓仕 王杏娟 康爱元 杨斌 肖鹏程 |
| 作者单位： | 1.华北理工大学冶金与能源学院, 河北 唐山 063210; 2.河北科技大学材料科学与工程学院, 河北 石家庄 050000; 3.河钢承钢线材事业部, 河北 承德 067000 |
| 基金项目： | 国家自然科学基金资助项目(51974133,51774141); 国家自然科学青年基金资助项目(51904107); 河北省自然科学基金资助项目(E2019209543) |
| 摘 要： | 高钛焊丝钢连铸过程中结晶器内钢渣界面反应严重,首先对存在严重钢渣界面反应现象的A钢种进行了凝固特性分析。设计一种低反应性的高钛焊丝钢专用的CaO-Al2O3渣系保护渣。通过相图计算保护渣的基础组分w(CaO)/w(Al2O3)=1.0,Na2O质量分数为8%,MgO质量分数为3%,CaF2质量分数为4%~6%,B2O3质量分数为4%~10%,SiO2质量分数为4%~12%,TC质量分数为8%~10%。利用熔点熔速测定仪和旋转黏度计等设备重点研究了保护渣的熔化特性。得出适宜组分的CaO-Al2O3基高钛焊丝钢专用保护渣,熔点为1 037~1 129 ℃,熔速为64~79 s,黏度(1 300 ℃)为0.325~0.554 Pa·s。 |
| 关 键 词： | 保护渣 高钛钢 熔化 相图计算 低反应性 CaO-Al2O3渣系 |
Analysis on melting characteristics of CaO-Al2O3based special mold flux for high-titanium welding wire steel |
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| ZHU Li-guang,ZHANG Xiao-shi,WANG Xing-juan,KANG Ai-yuan,YANG Bin,XIAO Peng-cheng.Analysis on melting characteristics of CaO-Al2O3based special mold flux for high-titanium welding wire steel[J].China Metallurgy,2020,30(10):9-16. | |
| Authors: | ZHU Li-guang ZHANG Xiao-shi WANG Xing-juan KANG Ai-yuan YANG Bin XIAO Peng-cheng |
| Affiliation: | 1. College of Metallurgy and Energy, North China University of Science and Technology, Tangshan 063210, Hebei, China;2. School of Materials Science and Engineering, Hebei University of Science and Technology, Shijiazhuang 050000, Hebei, China;3. Wire Rod Products Business Department, HBIS Chengsteel, Chengde 067000, Hebei, China |
| Abstract: | During the continuous casting process of high-titanium welding wire steel, the steel slag interface reaction is serious in the mold. The solidification characteristics of steel A with severe steel slag interface reaction phenomenon were analyzed. Design A kind of low reactivity CaO-Al2O3 based mold flux for high-titanium welding wire steel was designed. Based on the phase diagram calculation, the w(CaO)/w(Al2O3) ratio was 1.0, w(Na2O) was 8%, w(MgO) was 3%, w(CaF2) was 4%-6%, w(B2O3) was 4%-10%, and w(SiO2) was 4%-12%, w(TC) was 8%-10%. The melting characteristics of mold flux were mainly studied by using melting point melting rate tester and rotational viscometer. It could be concluded that the CaO-Al2O3 based mold flux for high-titanium welding wire steel with suitable composition had a melting point of 1 037-1 129 ℃, a melting rate of 64-79 s, and a viscosity (1 300 ℃) of 0.325-0.554 Pa·s. |
| Keywords: | mold flux high-titanium steel melt phase diagram calculation low reactivity CaO-Al2O3 slag system" target="_blank">2O3 slag system')" href="#"> CaO-Al2O3 slag system |
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