Effect of Sodium Tripolyphosphate Content on Properties of MgO-CaO Dry Vibration Mixes for Tundish

摘要：

　　Effect of sodium tripolyphosphate (STPP) on properties of magnesia-lime dry vibration mixes for tundish has been investigated.The STPP addition was 0%,0.5%,1%,1.5% and 2% respectively.Specimens were prepared by ramming vibration and heated at 220 ℃,1100 ℃ and 1550 ℃ respectively.Cold modulus of rupture,cold compressive strength,bulk density,permanent linear change and apparent porosity of the samples were tested.With STPP addition increasing,cold strengths after heating both at low and at high temperature can be improved.STPP plays an important role in controlling the quantity of low melting phases and sintering at high temperature.Compromisingly,appropriate addition of STPP in this work is suggested as 1%.

作者: GAO Hongyue ZHANG Guodong YOU Jiegang

作者单位: School of High Temperature Materials and Magnesia Resources Engineering, University of Science and Technology, Liaoning, Anshan, Liaoning 114051, P.R.China

会议类型: 国际会议

会议名称: The 6th International Symposium on Refractories (第六届国际耐火材料会议)

会议地点: 郑州

会议语种:英文

页码: 173-175

在线出版日期: 2012-10-18（万方平台首次上网日期，不代表论文的发表时间）