Investigation of mould thermal behaviour by means of mould instrumentation
Investigation of mould thermal behaviour by means of mould instrumentation
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DOI：
10.1179/030192304225019234
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发表时间：
2004-10
影响因子：
2.1
通讯作者：
G. Xia;H. P. Narzt;C. Fürst;K. Mörwald;J. Moertl;P. Reisinger;L. Lindenberger
中科院分区：
文献类型：
--
作者：
G. Xia;H. P. Narzt;C. Fürst;K. Mörwald;J. Moertl;P. Reisinger;L. Lindenberger
连铸结晶器的热行为对铸坯表面质量、连铸生产率和操作安全有着至关重要的影响。奥伊斯塔尔平斯塔尔有限公司长期以来一直对霉菌行为的研究领域感兴趣，并于1995年开始研究热通量，然后在1999年开始研究热变性。自2000年以来，已安装了结晶器热流密度、热变率和摩擦力在线监测系统。结晶器内的热流密度是通过测量一次冷却水的流入和流出温度以及通过量来确定的。利用基于热电偶的结晶器铜板漏钢检测系统测量的温度来研究结晶器铜板的热变性。利用这些在线测量值考察了浇注参数、钢的成分和浇注保护渣对热流密度和热变率的影响，以及这些变量与裂纹的关系。从这些广泛的工厂调查中获得的知识已被用作诊断问题(如漏钢和粘结)、优化工艺，特别是在连铸保护渣领域，以及控制板坯质量的主要工具。特别是，这一知识已被纳入在线模具热监测。
The thermal behaviour of the continuous casting mould has a critical influence on strand surface quality, casting productivity and operating safety. voestalpine Stahl GmbH has long been interested in the field of research into mould behaviour, and began with the investigation of heat flux in 1995, and then of thermal variability in 1999. Since 2000, an online mould thermal monitoring system for heat flux density, thermal variability and friction has been installed. The heat flow density in the mould is determined by measuring the inflow and outflow temperatures and the throughflow volume of the primary cooling water. Temperature as measured by a thermocouple based breakout detection system in the mould copper plate is used to investigate the thermal variability. These online measured values have been employed to examine the influence of casting parameters, steel analysis and casting powder on the heat flux and thermal variability, and the relationship between these variables and cracking. The knowledge gained through these wide ranging plant based investigations has been used as a major tool in the diagnosis of problems (such as breakout and sticking), for optimisation of the process, particularly in the field of casting powders, and for control of slab quality. In particular, this knowledge has been incorporated into online mould thermal monitoring.