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导言新型气水雾化喷嘴的开发对促进连铸技术的提高,有着头等重要的意义。它不仅关连到铸坯质量的升级、品种的扩大、能耗的节约、产量的增加和成本的降低等许多方面,而且还是热送、热装与获得高温无缺陷铸坯的关键技术之一。鉴于传统的水喷嘴在使用过程中,具有容易堵塞、水流量可调范围窄、耗水量高、水流密度分布不均匀、雾化能力差以及射流铺盖面积小等缺点,既不能适应近代工业对连铸坯质量日益增长的要求,更无法满足易裂合金钢、园坯的连铸和以节能为标志的热送——热装——直轧等连铸新技术发展的需求。因而,自1973年法国
Introduction The development of new gas-water atomizing nozzles is of paramount importance in promoting continuous casting technology. It is not only related to the quality of the slab upgrade, the expansion of varieties, energy saving, increased production and cost reduction, and many other aspects, but also hot delivery, hot-filled and access to high-temperature defect-free casting one of the key technologies. In view of the shortcomings of traditional water nozzles such as easy clogging, narrow adjustable range of water flow rate, high water consumption, uneven water density distribution, poor atomization ability and small jet cover area, Billet quality growing demand, but also can not meet the requirements of the development of new technology of continuous casting such as easy-splitting steel, continuous casting of billet and energy-saving hot delivery - hot-rolled - straight rolling. Thus, since 1973 France