Comparison of Cement-and Hydratable Alumina-bonded Alumina-spinel Materials for Steel Ladle Purging Plugs
This paper provides a summary of extended investigations performed on cement-and hydratable alumina bonded refractory materials for steel ladle purging plugs.The main wear factors of purging plugs,which are erosion due to intense stirring,corrosion by iron-oxide slag during oxygen lancing,and spalling due to thermal cycling were addressed in the investigation by theoretical thermodynamic evaluations using FactSage,mechanical property testing including hot modulus of rupture,and fracture behaviour testing using the wedge-splitting test.In addition,microstructural investigations were performed in order to explain material differences.The results provide a basis for the assessment of the different binder concepts especially for the purging plug application and indicate the potential,which hydratable alumina bonded materials could have in this area.Industrial and academic partners of the FIRE-network from three different continents have successfully cooperated in this study.
Al2O3-MgO-CaO factsage analysis cement bonded castable no-cement castable hydratable alumina fracture behaviour spalling microstructure steel ladle purging plug
LONG Bin Buhr ANDREAS In-Ho JUNG JIN Shengli Harald HARMUTH Jerry DUTTON
Almatis Qingdao,Qingdao,China Almatis GmbH,Frankfurt,Germany McGill University Canada,Canada Chair of Ceramics,Montanuniversitaet Leoben,A-8700,Leoben,Austria Jerry Dutton,Stourbridge,United Kingdom
国际会议
Conference on Refractories International 2018, CRI2018)(2018国际耐火材料学术会议)
杭州
英文
1-15
2018-10-17（万方平台首次上网日期，不代表论文的发表时间）