结晶器与铸坯间保护渣传热性能的研究现状

Review of heat transfer between mold and strand through mold flux film in continuous casting

概述了铸坯与结晶器间的保护渣传热,总结了国内外近年来关于保护渣传热检测方法和传热计算的研究现状,并指出现有保护渣传热性能检测方法为一维传热原理,可以反映保护渣的基本传热性能并作为选择保护渣的依据。认为目前的研究只对保护渣的渣膜结构进行了简单的处理或忽略了结晶器弯月面区域的保护渣传热,需进一步加强铸坯与结晶器间保护渣的传热计算。

This article is an overview about the recent researches on heat transfer performance of mold flux between mold and strand, its detection methods and heat transfer calculation both at home and abroad. It is concluded that the present heat transfer detection method which is based on the principle of one- dimensional theory can reflect the essential heat transfer properties of the mould flux and it can be used as the basis in selection of the proper mould flux. However it＇s considered that the research work uptodate is barely confined in very simple treatment on the slag film structure of the mould flux and ignores the heat transfer of the mould flux near the meniscus. Therefore it is needed to strengthen the study of heat transfer calculation of mould flux.