CRYSTALLIZATION CHARACTERISTICS OF B2O3 AND TiO2-BEARING GLASSY FLUORIDE-FREE MOLD FLUXES

doi:10.2298/JMMB191128018W

	CRYSTALLIZATION CHARACTERISTICS OF B2O3 AND TiO2-BEARING GLASSY FLUORIDE-FREE MOLD FLUXES
	Wang, Z.1,2,3,4; Shu, Q-F 5; Chou, K-C 5
刊名	JOURNAL OF MINING AND METALLURGY SECTION B-METALLURGY
	2020
卷号	56 期号:2 页码:279-287
关键词	Fluoride-free mold fluxes Crystallization Slag Glass forming ability index Surface crystallization TO2
ISSN号	1450-5339
DOI	10.2298/JMMB191128018W
英文摘要	To explore the effects of TiO2 and/or B4O3 on crystallization of the glassy fluoride-free slag film near the copper mould, the crystallization characteristics of glassy fluoride-free mold fluxes with fluoride being substituted by TiO2 and/or B2O3 were investigated using X- ray diffraction (XRD), scanning electron microscope (SEM) and differential thermal analysis (DTA) techniques. The glass forming ability index (K-gl) of the glassy fluoride-free mold fluxes was studied using Hruby's method. The XRD and SEM analysis show that Ca2Al2SiO7, CaTiO3 and CaSiO3 are the dominant crystals of this fluoride-free mold fluxes system. With the content of TiO2 increasing from 0 to 7%, the crystallization of Ca(2)Al(2)SiO(7 )and CaSiO3 are inhibited and the formation of CaTiO3 is also weak, so crystallization tendency of the glassy fluoride freemold fluxes weakens. But as TiO2 content reaches 10%, the crystallization tendency strengthens because of the strong crystallization of CaTiO3. An increase of Bp, inhibits the crystallization of calcium silicate, so it weakens the crystallization tendency of the glassy fluoride freemold fluxes. The crystallization processes of the studied fluoride-free mold fluxes correspond to the surface crystallization mechanism. This research provides important reference for further investigation on the heat transfer behavior of the TiO2 and B2O3-bearing slag between copper mould and slab to evaluate the feasibility of B2O3 and TiO2-bearing fluoridefree mold fluxes.
资助项目	National Natural Science Foundation of China (NSFC)[21736010] ; National Natural Science Foundation of China (NSFC)[51404226] ; Key Research Program of Nanjing IPE Institute of Green Manufacturing Industry[E0010709] ; Innovation Academy for Green Manufacture, Chinese Academy of Sciences[IAGM-2019-A11]
WOS关键词	HEAT-TRANSFER ; VISCOSITY ; BEHAVIOR ; TEMPERATURE ; TIO2 ; KINETICS ; SYSTEM ; SIO2
WOS研究方向	Metallurgy & Metallurgical Engineering
语种	英语
出版者	TECHNICAL FACULTY, BOR-SERBIA
WOS记录号	WOS:000563004900001
资助机构	National Natural Science Foundation of China (NSFC) ; Key Research Program of Nanjing IPE Institute of Green Manufacturing Industry ; Innovation Academy for Green Manufacture, Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/41733]
专题	中国科学院过程工程研究所
通讯作者	Wang, Z.
作者单位	1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing, Peoples R China 2.Univ Chinese Acad Sci, Sch Chem Engn, Beijing, Peoples R China 3.Nanjing IPE Inst Green Mfg Ind, Nanjing, Peoples R China 4.Chinese Acad Sci, Innovat Acad Green Manufacture, Beijing, Peoples R China 5.Univ Sci & Technol Beijing, State Key Lab Adv Met, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Wang, Z.,Shu, Q-F,Chou, K-C. CRYSTALLIZATION CHARACTERISTICS OF B2O3 AND TiO2-BEARING GLASSY FLUORIDE-FREE MOLD FLUXES[J]. JOURNAL OF MINING AND METALLURGY SECTION B-METALLURGY,2020,56(2):279-287.
APA	Wang, Z.,Shu, Q-F,&Chou, K-C.(2020).CRYSTALLIZATION CHARACTERISTICS OF B2O3 AND TiO2-BEARING GLASSY FLUORIDE-FREE MOLD FLUXES.JOURNAL OF MINING AND METALLURGY SECTION B-METALLURGY,56(2),279-287.
MLA	Wang, Z.,et al."CRYSTALLIZATION CHARACTERISTICS OF B2O3 AND TiO2-BEARING GLASSY FLUORIDE-FREE MOLD FLUXES".JOURNAL OF MINING AND METALLURGY SECTION B-METALLURGY 56.2(2020):279-287.