全浮动芯棒连轧管机组轧件与芯棒速度及摩擦系数研究(上)  

Study on Workpiece vs Mandrel Velocity and Friction Factor Relationship of Fully-floating Mandrel Mill(Part I)

作　　者：赵志毅[1] 董凯[1] 余勇[2] 赵佳[1] 潘峰[2] 周晓岚[2] 

机构地区：[1]北京科技大学材料科学与工程学院,北京100083 [2]宝山钢铁股份有限公司钢管分公司,上海201900

出　　处：《钢管》2006年第6期17-21,共5页Steel Pipe

摘　　要：对宝山钢铁股份有限公司的全浮动芯棒连轧管机组各机架轧制压力、芯棒运动速度等一系列参数进行了综合测试,获得了轧件速度曲线,并探讨了轧件与芯棒速度之间的关系;分析了轧件与芯棒间的摩擦状态,并推算出两者间在各机架处的摩擦系数(为0.033～0.074),该系数沿轧制方向呈增大的趋势。以上结果为清楚认识连轧管过程中金属变形规律和芯棒摩擦作用机理提供了依据。An overall measurement of all the relevant parameters of each roll stand of the fully-floating mandrel pipe mill located at Baoshan I ＆ S Co., Ltd., including rolling force and mandrel velocity, etc., resulting in the workpiece speed characteristics. Furthermore, the workpiece vs mandrel velocity relationship is studied, and the friction condition between the workpiece and the mandrel is analyzed. It is identified that the friction factor of the two at each individual roll stand is 0.033 - 0.074, and the factor goes up along the rolling direction. The conclusion provides basis for identifying the metal deformation law and the mandrel friction effect mechanism during the mandrel mill rolling process.

关 键 词：连轧管 轧制压力 芯棒速度 摩擦系数 

分 类 号：TG335.7[金属学及工艺—金属压力加工]