球扁钢轧制扭转变形行为的试验研究  

Experimental Research on Torsional Deformation Behavior of Ball Flat Steel

作　　者：吴维[1] 龚娜[1] 

机构地区：[1]武汉科技大学钢铁冶金及资源利用省部共建教育部重点实验室,湖北武汉430081

出　　处：《南方金属》2014年第4期1-4,共4页Southern Metals

基　　金：国家级大学生创新训练计划项目(201210488024);武汉科技大学大学生科技创新基金研究项目(132RB001)

摘　　要：球扁钢由于自身形状尺寸、外在轧制条件、工艺参数的影响,在轧制过程中容易出现扭转变形缺陷.为了探究轧制工艺对球扁钢轧制中扭转变形的影响,本实验运用正交实验法研究轧制压下量、轧制润滑条件、轧件长度三者的综合影响.利用正交原理对试验结果进行极差分析、方差分析,探寻球扁钢在轧制的扭转变形规律,找出其中存在的关系.试验结果表明:球扁钢在轧制过程的扭转变形与轧制压下量和轧件长度有关,而与润滑条件无明显关系.其他条件一定时,在粗孔第二道次时取压下量为轧件原始厚度的21!,轧件长度取轧件原始厚度的10倍进行轧制,能够明显减少球扁钢的扭转变形.The ball fiat steel impacted by its shape and size, external rolling conditions and process parameters is prone to appear torsion deformation defects during the rolling process. In order to explore the effect of rolling process on the torsional deformation of the ball flat steel, the experimental study uses orthogonal experimental method to explore the impact of the rolling reduction, rolling lubrication conditions and workpiece length on the torsional deformation behavior of the ball fiat steel. Using the orthogonal principle of range analysis and variance analysis to the resuhs, the deformation law of the ball flat steel in roiling torsion is explored and the existing relationship is found. The test results show that the torsional deforma- tion behavior of the ball flat steel is related to the rolling reduction and the amount of length in rolling process, and no obvi- ous relationship with the lubricating condition. When other conditions are set, torsional deformation defects of the ball flat steel can be obviously reduced when rolling reduction of 21~of the original workpiece thickness and workpiece length of about 10 times of the original workpiece thickness in the rough - second pass are selected.

关 键 词：型钢轧制 球扁钢 扭转变形 正交实验 

分 类 号：TG335.57[金属学及工艺—金属压力加工]