Effect of MgO on solidification and crystallization properties of ultrahigh-basicity mold flux

被引：0
|
作者：
Chen, Yang [1 ,2 ]
Li, Min [1 ,2 ]
Wang, Shisong [3 ]
Zhu, Lilong [4 ]
Zhang, Xubin [1 ,2 ]
He, Shengping [1 ,2 ]
Wang, Qiangqiang [1 ,2 ]
机构：
[1] Chongqing Univ, Coll Mat Sci & Engn, Chongqing 400044, Peoples R China
[2] Chongqing Univ, Chongqing Key Lab Vanadium Titanium Met & Adv Mat, Chongqing 400044, Peoples R China
[3] Qingdao Special Steel Co Ltd, Steelmaking Plant, Qingdao 266400, Shandong, Peoples R China
[4] Chongqing Univ Sci & Technol, Chongqing, Peoples R China
来源：
MATERIALS CHEMISTRY AND PHYSICS | 2022年 / 276卷
基金：
中国国家自然科学基金;
关键词：
MgO; Ultrahigh-basicity; Break temperature; Solidification; Crystallization properties; MAGNETIC-PROPERTIES; BEHAVIOR; NA2O;
D O I：
10.1016/j.matchemphys.2021.125403
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The effect of MgO on the solidification and crystallization properties of ultrahigh-basicity mold flux was analyzed (i.e., comprehensive basicity R = 1.75). Results showed that with the increase of MgO content (0-6 wt%), the viscosity, melting temperature and break temperature decreases firstly, and then increases. The change of slag viscosity caused by the change of composition is indistinct, but the variation trend of melting temperature and break temperature is obvious. With the increase of MgO content, the crystallization temperature of ultrahigh basicity slag decreases gradually, while the crystallization rate decreases firstly, and then increases. When the MgO content reaches 3%, the crystallization rate is the minimum. Research found that Ca4Si2F2O7 is the main precipitated phase in the slag, and as the MgO content continues to increase, the new phases of CaF2 and Ca3MgSi2O8 appear gradually.
引用
收藏
页数：8
相关论文
共 50 条
  • [31] Optimization of crystallization properties of mold flux for slab casting of medium-carbon steel
    Jing, Cai-Liang
    Yin, Na
    Zhao, Zi-Feng
    Zhang, Jiong-Ming
    Wang, Xin-Hua
    Wang, Wan-Jun
    Beijing Keji Daxue Xuebao/Journal of University of Science and Technology Beijing, 2009, 31 (SUPPL. 1): : 28 - 31
  • [32] Study of Solidification and Heat Transfer Behavior of Mold Flux Through Mold Flux Heat Transfer Simulator Technique: Part II. Effect of Mold Oscillation on Heat Transfer Behaviors
    Ma, Fanjun
    Liu, Yongzhen
    Wang, Wanlin
    Zhang, Haihui
    METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE, 2015, 46 (04): : 1902 - 1911
  • [33] Study of Solidification and Heat Transfer Behavior of Mold Flux Through Mold Flux Heat Transfer Simulator Technique: Part II. Effect of Mold Oscillation on Heat Transfer Behaviors
    Fanjun Ma
    Yongzhen Liu
    Wanlin Wang
    Haihui Zhang
    Metallurgical and Materials Transactions B, 2015, 46 : 1902 - 1911
  • [34] Effect of MgO on the Crystallization Behavior and Properties of Glass-Ceramics
    Shi, Hao Nan
    Hou, Xiao Han
    TRANSACTIONS OF THE INDIAN CERAMIC SOCIETY, 2018, 77 (02) : 118 - 122
  • [35] Solidification and crystallization properties of CaO-SiO2-Na2O based mold fluxes
    K.C. Mills
    InternationalJournalofMineralsMetallurgyandMaterials, 2009, 16 (03) : 261 - 264
  • [36] Solidification and crystallization properties of CaO-SiO2-Na2O based mold fluxes
    He, Sheng-ping
    Wang, Qian
    Xie, Dan
    Xu, Chu-shao
    Li, Z. S.
    Mills, K. C.
    INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS, 2009, 16 (03) : 261 - 264
  • [37] Effect of basicity and B2O3 on the viscosity and structure of fluorine-free mold flux
    Zhang, Lei
    Wang, Wanlin
    Xie, Senlin
    Zhang, Kaixuan
    Sohn, Il
    JOURNAL OF NON-CRYSTALLINE SOLIDS, 2017, 460 : 113 - 118
  • [38] Numerical Simulation of Effect of Properties of Metal Mold on Solidification of Cast Copper Stave
    Du Xiao-ming
    Yang Jun-bao
    Huang Yong
    JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL, 2010, 17 : 27 - 32
  • [39] The effect of in-situ dynamic mold flux melting and crystallization on heat transfer in continuous casting
    WANG Wanlin
    BaosteelTechnicalResearch, 2010, 4(S1) (S1) : 24 - 24
  • [40] Effect of flux basicity on the microstructure and mechanical properties of an HSLA steel submerged arc weld
    Bhole, SD
    Nemade, JB
    TRENDS IN WELDING RESEARCH, PROCEEDINGS, 2003, : 707 - 712
12345