Ф22 mm规格热轧带肋钢筋二切分轧制生产实践

Production Practice of Φ22 mm Specifications Hot-rolled Ribbed Bar with Double Segmentation Technology

为提高产品竞争力,山钢股份莱芜分公司在Ф16 mm、Ф18 mm规格热轧带肋钢筋双切分工艺生产基础上,开发Ф22mm规格双切分工艺。精轧采用无槽—立箱—预切—切分—椭圆—成品孔型,合理分配压下量,根据料型配置进出口导卫。通过不断改进,实现了规模化生产,产品成材率达到101.85%,定尺率达到98.9%。

In order to improve the competition of products, the second rolling workshop of The Bar Plant in LAIWU Steel Company developed Ф22 mm specifications of double segmentation technology on the basis of Ф16 mm and Ф18 mm specifications hot-rolled ribbed bar of double segmentation technology. With the groove of grooveless rolling - vertical box - pre-slitting - slitting - oval - finished product pass, the fine rolling distribute the compress in reasonable and then dispose the import and export guide fittings according to the material type and configuration. With the improvement of production technology, the rolling workshop achieves large scale production. The yield of the product is reached 101.85% and the fixed rate is reached 95.9%.