Effect of Calcium Fluoride and Magnesia on the Performance of Tundish Coverture Fluxes Made of Blast Furnace Slag
Preparation of the tundish coverture fluxes by the blast fumace slag can recycle utilization of solid wastes discharged from iron and steel industry.Calcium fluoride and magnesia can play an important role for the basic performance oftundish coverture fluxes.The impact on the melting temperature, viscosities and surface tension of the tundish coverture fluxes from the content of calcium fluoride and magnesia were studied.The results showed that: When the content of CaF2 increased from 10% to 25%, the melting temperature, the viscosity and the surface tension were decreased by 50℃, 0.3 Pa· S and 0.039 N/m respectively.The viscosity was brought down of 0.02 Pa.S, the surface tension was increased by 0.03 N/m, and the difference between the lowest and highest melting temperature was about 3℃ when the content of MgO changed from 5% to 11%.
blast furnace slag tundish coverture fluxes calcium fluoride magnesia
Zhang Zhaohui Liu Bailong Ren Yun
School of Metallurgical Engineering,Xian University of Architecture and Technology,Xian 710055,Sha College of Materials & Mineral Resources,Xian University of Architecture and Technology,Xian 71005
国际会议
香港
英文
96-99
2013-06-25(万方平台首次上网日期,不代表论文的发表时间)