Mechanism of Slag Composition Change During Electroslag Remelting Process  

作　　者：ZHAO Jun-xue CHEN Yan-mei LI Xiao-ming CUI Ya-ru LU Xiao-tao 

机构地区：[1]School of Metallurgical Engineering, Xi＇an University of Architecture and Technology, Xi＇an 710055, Shannxi, China

出　　处：《Journal of Iron and Steel Research International》2011年第10期24-28,53,共6页

基　　金：Item Sponsored by National Natural Science Foundation of China(50644040)

摘　　要：The mass loss rate of CaF2-CaO-Al2O3-SiO2-MgO slag system originated from ANF-6 was studied with CaF2, CaO, Al2O3, SiO2 or MgO content as variables. The method of quadratic regression orthogonal design was used for the design and analysis of the experiment. The experimental results indicated that mass loss rate of slag can be increased by 6% with CaF2 changing from 50%to 65%. Mass loss increases with SiO2 , Al2O3 and MgO adding and decreases with CaO content increasing. Because of the reaction between oxide and fluoride in the slag pool, apparent mass loss of CaF2-Al2O3 CaO-SiO2 MgO slag system appears at melting point. This will cause obvious composition change of electroslag. In addition, the segregation occurs in the slag skin forming process. This is another reason causing the composition change of electroslag.The mass loss rate of CaF2-CaO-Al2O3-SiO2-MgO slag system originated from ANF-6 was studied with CaF2, CaO, Al2O3, SiO2 or MgO content as variables. The method of quadratic regression orthogonal design was used for the design and analysis of the experiment. The experimental results indicated that mass loss rate of slag can be increased by 6% with CaF2 changing from 50%to 65%. Mass loss increases with SiO2 , Al2O3 and MgO adding and decreases with CaO content increasing. Because of the reaction between oxide and fluoride in the slag pool, apparent mass loss of CaF2-Al2O3 CaO-SiO2 MgO slag system appears at melting point. This will cause obvious composition change of electroslag. In addition, the segregation occurs in the slag skin forming process. This is another reason causing the composition change of electroslag.

关 键 词：ELECTROSLAG DSC-TG analysis quadratic regression orthogonal design composition change 

分 类 号：TQ127.2[化学工程—无机化工] TS513[轻工技术与工程—皮革化学与工程]