水钢棒材两线切分扁平方孔型设计与应用

Design and Application of Two-line Splitting Flat Square Pass of Bar Steel in Shuigang

本文通过分析梅花方孔型系统与扁平方孔型系统的特点，结合首钢水钢轧钢厂现实际生产情况，对Ф1-Ф22mm三个规格的精轧孔型系统K5、K6两个孔型进行扁平方设计以及对K3、K4两个孔型进行改进，实施效果理想，为企业两线切分生产稳产顺产打下坚实的基础。

By analyzing characteristics of plum square roll pass and fiat square roll pass, combining with present production status of our rolling plant, we designed flat square roll pass of K5 and K6 and improved roll pass of K3 and K4 in final rolling process of Ф18-22mm bar, obtained ideal effects, and lay a solid foundation for stability and smoothness of two-line splitting production hne.