【摘要】 张钢在现有棒材生产线工艺设备条件下,通过改变精轧区减速比的方法,改变电机转速;预切分孔型和切分孔型采用不同等效圆设计,控制4线差;定性扭转导卫改为定量扭转导卫,统一4线扭转角度;加宽U型槽等方案,实现了φ12mm热轧带肋钢筋四切分轧制。四切分轧制的成功使钢筋的日产量达到3400t以上,产品合格率达99.86%。更多还原

【Abstract】 Under the condition of existing process equipment in the bar production line, changing the motor speed by changing the finishing area reduction ratio, controlling the four-strand difference by different equivalent circle design for pre-segmentation pass and slicing pass, changing qualitative reverse guide and guard into quantitative reverse the guide and guard for unifying the torsion angles of four strands and widening the U-shaped groove etc, Zhangdian Steel realized the four-strand split rolling of φ12 mm hot-rolled ribbed steel bars. The success of the four-slit rolling made the daily output of the reinforced bars reach more than 3 400 t and the percent of pass of the product is 99.86%.更多还原