冷拔圆钢锚杆杆体的技术分析及制作工艺改进

Technical Analyse of the Bolt Body of Coal Drawing Steel Rod

用金属材料拉伸理论对冷拔滚丝方法生产的普通圆钢麻花锚杆杆体工艺过程及其力学性能进行了分析 ,并对提高其延伸率的问题提出了改进方案 ,从而为等强锚杆的生产工艺提出了新的方法。

Based on metal drawing theory,the producting process and mechanical characters of steel rod bolt is analysed.The improving measure to raise elongation rate is put foreward to produce equal strength bolt.