芯棒限动速度对金属纵向延伸的影响  

The effect of mandrel retaining speed on the longitudinal elongation of metal

作　　者：逄宁[1] 赵志毅[1] 

机构地区：[1]北京科技大学材料科学与工程学院,北京100083

出　　处：《锻压装备与制造技术》2014年第6期73-75,共3页China Metalforming Equipment & Manufacturing Technology

摘　　要：本文基于ABAQUS/Explicit操作平台,建立了烟台宝钢尴460mm PQF机组连轧过程的有限元模型,研究了不同芯棒限动速度对金属纵向流动的影响。实验结果表明:随着限动速度的降低,差速轧制效果越明显,可以降低轧制力,减少钢管宽展,利于金属的纵向延伸。Based on Abaqus/Explicit operation platform, a finite element model of Yantai Baosteel φ460mm PQF mill has been established to study the effect of different mandrel retaining speeds on the longitudinal flow of metal. The experimental results show that differential speed rolling effect is more obvious with the reducing of mandrel retaining speed. The lower rolling force and pipe spread is favorable for the longitudinal extension of the metal.

关 键 词：轧制 限动速度 纵向延伸 有限元模拟 芯棒 

分 类 号：TG333.8[金属学及工艺—金属压力加工]