φ20mm PSB500Z左旋精轧螺纹钢筋的热轧实践

Hot-rolling practice ofφ20 mm PSB500Z left-handed fine rolled steel bar

根据φ20mm PSB500Z左旋精轧螺纹钢筋的外形尺寸要求,分析了它的热轧工艺难点,设计了φ20 mm PSB500乙左旋精轧螺纹钢筋的两切分轧制和冷却工艺过程,制定了工艺参数,并进行热轧实践。结果表明,钢筋的力学性能和外形尺寸满足标准要求,同时提高了产能。

The hot-rolled technological difficulies ofφ20 mm PSB500Z left-handed fine rolled steel bar are analyzed according to its dimension requirements,its two-se gmentation rolling and cooling process is designed,the tee hnological parameters in its rolling proces are established,and its hot-rolling practice is carried out.The results show that its mechanical properties and dimensions meet requirements of the standard and its productivity is improved.