Development of Test Method for Measuring Sintering Temperature of Mould Fluxes  

作　　者：WANG Qian LU Yong-jian HE Sheng-ping WANG Li-juan K C Mills 

机构地区：[1]Chongqing Key Laboratory of Metallurgical Engineering, Chongqing University, Chongqing 400044, China [2]Technology Center, Shuicheng Iron and Steel (Group) Co Ltd, IAupanshui 558023, Guizhou, China [3]Department of Materials, Imperial College London, London SW7 2AZ, UK

出　　处：《Journal of Iron and Steel Research International》2011年第4期1-6,共6页

基　　金：Item Sponsored by National Natural Science Foundation of China(50904083,50474023)

摘　　要：Excessive sintering of mould fluxes can readily cause defects and sticker breakouts in continuously cast strands.Studying the sintering property is important to minimize problems related to sintering arising from the use of mould fluxes in continuous casting.An effective method of measuring the apparent sintering temperature has been developed in this study.The method is based on monitoring the formation of cavities caused by melting of samples.For monitoring,the differential pressure of an inert gas flow was measured through a set volume of sample（mould flux A）held in a furnace tube.The apparent sintering temperature was defined in this test to determine sintering process.The sintering properties of fluxes with various contents of carbon black were examined along with identification of mineralogical phases and the nature of the sinter for samples of mould flux A held for one hour at different temperatures.The experimental results indicated that the apparent sintering temperature（AST）was a useful parameter to assess the threat of problems related to sinter.Excessive sintering of mould fluxes can readily cause defects and sticker breakouts in continuously cast strands.Studying the sintering property is important to minimize problems related to sintering arising from the use of mould fluxes in continuous casting.An effective method of measuring the apparent sintering temperature has been developed in this study.The method is based on monitoring the formation of cavities caused by melting of samples.For monitoring,the differential pressure of an inert gas flow was measured through a set volume of sample（mould flux A）held in a furnace tube.The apparent sintering temperature was defined in this test to determine sintering process.The sintering properties of fluxes with various contents of carbon black were examined along with identification of mineralogical phases and the nature of the sinter for samples of mould flux A held for one hour at different temperatures.The experimental results indicated that the apparent sintering temperature（AST）was a useful parameter to assess the threat of problems related to sinter.

关 键 词：mould flux sintering property differential pressure apparent sintering temperature 

分 类 号：TQ320.662[化学工程—合成树脂塑料工业] TG423[金属学及工艺—焊接]