Please wait a minute...
金属学报  1994, Vol. 30 Issue (20): 350-360    
  论文 本期目录 | 过刊浏览 |
电渣重熔用CaF_2+Al_2O_3和CaF_2+Al_2O_3+CaO系熔渣传氧的研究
魏季和;刘宗远
上海工业大学;中国冶金进出口公司广州分公司
STUDY ON OXYGEN TRANSFER THROUGH MOLTEN SLAGS OF CaF_2+Al_2O_3 AND CaF_2+Al_2O_3+CaO SYSTEMS FOR ESR
WEI Jihe (Shanghai Univereity.of Technology);LIU Zongyuan(Xi'van Institute of Metallurgy Construction Engineering)
引用本文:

魏季和;刘宗远. 电渣重熔用CaF_2+Al_2O_3和CaF_2+Al_2O_3+CaO系熔渣传氧的研究[J]. 金属学报, 1994, 30(20): 350-360.
, . STUDY ON OXYGEN TRANSFER THROUGH MOLTEN SLAGS OF CaF_2+Al_2O_3 AND CaF_2+Al_2O_3+CaO SYSTEMS FOR ESR[J]. Acta Metall Sin, 1994, 30(20): 350-360.

全文: PDF(654 KB)  
摘要: 利用ZrO_2固体电解质氧浓差电池测定了电渣重熔用CaF_2+Al_2O_3和CaF_2+Al_2O_3+CaO系熔渣的氧渗透率,考察了熔渣成分及温度对熔渣传氧性能的影响.在1673—1873K和0.1MPa的氧气氛下,侧得这两个渣系熔渣的氧渗透率分别为1×10-(20)—6×10-(19)和1×10 ̄(21)—5×10 ̄(18)molO_2·cm ̄(-1)·s ̄(-1);随MnO_2,Fe_2O_3,Cr_2O_3,TiO_2,CaF_2含量和碱度(CaO/SiO_2)的增高,熔渣的氧渗透率增大,MnO_2和Fe_2O_3的影响尤为显著;随温度的升高,熔渣的氧渗透率增大,且可按速率过程来处理CaF2基多元复杂熔渣的传氧过程。
关键词 电渣重熔熔渣CaF_2+Al_2O_3系CaF_2+Al_2O_3+CaO系传氧性能渗透率    
Abstract:The permeability of oxygen through the molten slags of CaF_2+Al_2Os_3 and CaF_2+Al_2O_3+CaO systems for electrostag (ESR) was determined using. an oxygen concentration cell with ZrO_2 solid electrolyte. The effects of the components in the slags and temperture on the oxygen transfer property of the molten slags were considered. The permeability of the molten slags of these two systems whose compositions are essentially the same as the practical in the remelting,was obtained to be respectively 1× 10-20-6 × 10-19 and 1× 10-21-5 × 10-18 mol O2.cm-1.s-1 in the temperature range of 1673—1873 K under pure oxygen gas at 0.1 MPa. It increases with raising the contents of MnO_2, Fe_2O_3, Cr_2O_3, TiO_2,CaF_2and basicity in the molten slags, and the influence of MnO_2 and Fe_2O_3 is particularly remarkable. Also, it raises with an increase in temperature, and the oxygen transfer through the CaF_2-based multicomponent and complicate liquid slags may be treated as a rate process.The mechanism of oxygen transfer through the CaF_2-based liquid slags was discussed.
Key wordselectroslag remelting    molten slag    CaF_2+Al_2O_3 system    CaF_2+Al_2O_3+CaO system    oxygen dtansfer property    permeability.
    
基金资助:国家自然科学基金
1魏季和,MitchellA.金属学报,1984:20(5):B261,2802魏季和,MitchellA,金属学报,1987;23(3):B1263WeiChiho.ChinJMetSciTechnol,1989;5(4):2354HawkinsRJ,SwindenDJ,PocklingtonDN.EleotroslagRefining,ISI,London,1973:215BoykoGA,KuslintskyAB,etalIn:PatonBE,MedovarBl,eds.ElelroshlakovouymetallNaukavadumka,Kiev,1981:316InougeM.Proc3rdIntIronSteelCongress,Chicago,Ilinois,April,AIME,1978;3277FraserME,MitchellA.IronmakingSteelmaking,1976;3(5):2888SchwerdifegerK,WepnerW,PateiskyG.IronmakingSteelmaking,1978:5(3):1359SaitoT,ShiraishiY,etal.Preprints7IthMeetingJapanInstMetals,1972:25210KorosPJ,KingTB.TransMetSocAIME,1962:224:22911SasabeM,GotoKS,MetallTrans,1974;5:222512NagaharaH,ShiraishiY.Preprints81thMeetingJapanInstMetals,1977:17913SasabeM,KinoshitaY.TransIronSteelInstJapan,1980;20:80114SasabeM,AsamuraA,2ndIntSympMetSlagsFluxes,LakeTahoe,Nevada,Nov.,TMS—AIME1984:65115SasabeM,KitamumraS.ISIJInt,1992;33(1):13316魏季和,向顺华,刘宗远.化工冶金,1989;10(1):8717CoughlinJP.USBureauMinesBull,1954:(542)18WagnerCZ.PhysChem,1993;21:25V
[1] 曹江海, 侯自兵, 郭中傲, 郭东伟, 唐萍. 过热度对轴承钢凝固组织整体形貌特征及渗透率的影响[J]. 金属学报, 2021, 57(5): 586-594.
[2] 侯自兵,曹江海,常毅,王伟,陈晗. 基于分形维数的模具钢电渣重熔铸坯碳偏析形貌特征研究[J]. 金属学报, 2017, 53(7): 769-777.
[3] 李青,王资兴,谢树元. 电渣重熔全过程的数学模型开发及过程模拟研究[J]. 金属学报, 2017, 53(4): 494-504.
[4] 江鹏,袁同心,于彦东. 加工条件对多相V-Ti-Ni合金的显微组织和氢渗透性能的影响[J]. 金属学报, 2017, 53(4): 433-439.
[5] 洪川,高运明,杨创煌,童志博. 1673 K下SiO2-CaO-MgO-Al2O3熔渣中 Ni2+的电化学行为*[J]. 金属学报, 2015, 51(8): 1001-1009.
[6] 倪自飞 孙扬善 薛烽 白晶. 原位TiC颗粒弥散强化304不锈钢的制备及组织性能研究[J]. 金属学报, 2010, 46(8): 935-940.
[7] 王芳 李宝宽 . 电渣重熔过程中的电磁场和Joule热分析[J]. 金属学报, 2010, 46(7): 794-799.
[8] 李永德; 杨振国; 李守新; 柳洋波; 陈树铭 . GCr15轴承钢超高周疲劳性能与夹杂物相关性[J]. 金属学报, 2008, 44(8): 968-972 .
[9] 吴钱林; 孙扬善; 薛烽; 周健 . 电渣重熔对TiC强化2Cr13不锈钢力学性能和断口的影响[J]. 金属学报, 2008, 44(6): 745-750 .
[10] 高运明; 郭兴敏; 周国治 . 短路还原法提取铁的研究[J]. 金属学报, 2006, 42(1): 87-92 .
[11] 曲彦平; 杜鹤桂 . 高炉型高钛熔渣离子团结构与粘度的关系[J]. 金属学报, 2002, 38(12): 1277-1280 .
[12] 邱克强; 王爱民; 张庆生; 张海峰; 丁炳哲; 胡壮麒 . Nd60Fe30Al10大块非晶的制备及其热稳定性[J]. 金属学报, 2001, 37(8): 829-832 .
[13] 鲁雄刚; 丁伟中; 李福燊; 李丽芬; 周国治 . Wagner极化法对熔渣电子电导的研究[J]. 金属学报, 2001, 37(2): 184-188 .
[14] 唐恺; 蒋国昌 . 冶金熔渣热力学性质的SReS模型[J]. 金属学报, 2000, 36(5): 502-506 .
[15] 储少军;刘海洪;张合义. 灰铸铁电渣重熔过程石墨球化现象的研究[J]. 金属学报, 1998, 34(9): 971-976.