结晶器铜管抛物线型连续锥度设计系统

Computerized system for the design of a parabolic taper of mould tubes

由于钢水的凝固收缩,在结晶器铜管内壁和凝固坯壳之间形成气隙。气隙对结晶器的传热与铸坯凝固有重要影响。为了减少气隙,结晶器内腔加工成带有倒锥度的形式。锥度过大过小都会带来一定的质量问题并影响生产顺行。因此,结晶器锥度设计是高效连铸技术的关键要素之一。在系统分析国内外结晶器常用设计方法的基础上,提出了一个抛物线锥度设计的计算模型并形成应用软件。为高效连铸结晶器设计提供了理论基础。

Due to the solidified shrinkage of the molten steel in the mould, the air gap, which comes into being between the mould and the solidified steel shell, plays an important role in heat transfer of continuous casting process. Accordingly, the internal contour geometry of the mould tube is made with a taper, which can affect the product quality and productivity. In this paper, some methods of the taper design at home and abroad have been studied systematically. And a calculation model for the parabolic taper design is presented. According to this model, an application code was complied, which can be used to guide mould design.