利用线材轧制薄带宽展的模拟研究  

Simulation Study on Spread of Thin Strip Rolling by Wire Rod

作　　者：李胜利[1] 孙傲[1] 田长杰 

机构地区：[1]辽宁科技大学材料与冶金学院,鞍山114051

出　　处：《特殊钢》2016年第2期19-21,共3页Special Steel

摘　　要：在实验室利用Φ11 mm铅棒代替热轧线材,通过Φ130 mm二辊轧机模拟试验热轧圆钢轧制薄带的变形过程。结果表明,当薄带厚度为1.2 mm时,采用纵轧法宽展可增加35.37%,且随着变形量的增多,宽展变化较小;采用角轧法时,随着送入角的减小,宽展增加明显,拟合得到宽展计算公式为△b=28.67-0.26α,当送入角为20°时,薄带宽度可达到36.12 mm。除此之外,在小变形量范围内进行角轧时,轧件的宽度随着压下量的累积呈线性增长,这有利于得到热轧线材生产大宽厚比薄带的可行性解决方案。The deformation process of thin strip rolling by hot-rolled rod is simulated and tested by O130 mm two-high rolling mill in laboratory using φ11 mm lead bar to replace hot-rolling rod. Result show that for thickness of thin strip is 1.2 mm the spread can increase by 35. 37% by using longitudinal-rolling method, and with increasing the deformation, the change of spread is small; by using diagonal method with decreasing the bite angle the spread increases obviously, the imi- tate-defined spread formula Ab =28. 67 -0. 26 α is obtained, and with bite angle being 20° the width of thin strip is up to 36. 12 mm, beside as rolling process is in range of small deformation, with accumulation of reduction the width of rolling piece increases linearly, it is available to get a feasible solution for production of thin-strlp with big width-thickness ratio by hot-rolled rod.

关 键 词：线材 角轧 宽展公式 薄带 变形规律 

分 类 号：TG335[金属学及工艺—金属压力加工]