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定量测定二冷喷嘴与高温铸坯之间的传热系数是连铸二冷区制定合理冷却制度的基础工作,它直接影响着铸坯质量,铸机生产率和合金钢品种的开发,同时对于改进喷嘴结构也有重要作用。最近几年,国内外对测定传热系数的理论做了许多研究工作,但对于如何测定传热系数的具体技术报导很少。目前我国大力发展连铸技术,因此研制传热系数测定仪,以确定合理的二冷制度和合理的喷嘴结构,使我国连铸技术迅速发展,就成为非常重要的了。 1983年6月根据冶金部下达的研制课题,开始进行了传热系数测定仪的研制工作,
The quantitative determination of the heat transfer coefficient between the second cold nozzle and the high temperature slab is the basic work of making a reasonable cooling system in the second cooling zone of the continuous casting. It directly affects the quality of the slab, the casting machine productivity and the development of alloy steel varieties, Nozzle structure also has an important role. In recent years, many researches have been done on the theory of heat transfer coefficient determination at home and abroad, but there are few reports on how to determine the heat transfer coefficient. At present, China has made great efforts to develop continuous casting technology. Therefore, it is very important to develop a heat transfer coefficient tester to determine a reasonable secondary cooling system and a reasonable nozzle structure so that the rapid development of continuous casting technology in our country. June 1983 According to the Ministry of Metallurgical issued research topics, began the development of heat transfer coefficient tester,