矫直辊曲率作为二辊矫直机辊型设计的核心参数，对矫直机矫直质量起着决定性作用。为了提高矫直精度，应用弹塑性理论深入分析了二辊矫直机制，在考虑金属强化的情况下建立了圆材弹塑性弯曲模型，对矫直辊曲率进行了设计，并且给出了曲率过渡段，设计出了适合矫直?100～?150 mm圆材的二辊矫直辊辊型。利用有限元软件Marc建立三维有限元模型，对矫直过程进行模拟仿真，分析了圆材的矫直效果，为实际生产提供了理论支持。
The straightening curvature as the main straightening parameter in the design of the roller shape of two-roller straightener,decides the quality of straightening. So as to improve straightening precision,the mechanism of two-roller straightener was analysed deeply based on the elastic-plastic theory,which was developed considering the strengthening of material for the bar. After choosing the curvature based on theory of straightening,the shape of straightening roller suit-ing for ?100-?150 mm bars was designed by increasing the transition section. Then the finite element model of two-roll-er straightener was established based on the finite element software—Marc,straightening quality was analysed about the working process of two-roller straightener after the simulation,providing theoretical basis for the actual production.
参考文献
| [1] | 刘志亮,张立浦,刘才溢,王英杰.小断面管材二辊矫直机压扁量分析[J].钢铁,2014(8):54-58,87. |
| [2] | 刘志亮,刘丰,王英杰.棒材二辊矫直机辊型曲线与矫直精度分析[J].钢铁,2012(07):40-43. |
| [3] | 刘志亮,丁志勇,高承彬.二辊矫直机矫直辊形及矫直精度研究[J].物理测试,2008(06):39-42. |
| [4] | 王英睿,王英杰,全基哲,袁建光.厚板冷矫直机辊系承载能力分析[J].钢铁,2010(02):62-65. |
| [5] | 郭宏伟.宽带钢热连轧机的粗轧辊系配置方案与应用[J].中国冶金,2013(03):40-45. |
| [6] | 崔甫.矫直原理与矫直机械[M].北京:冶金工业出版社,2007:109. |
| [7] | 王云,刘才,马立东,王玉峰,黄庆学.二辊矫直机凹辊辊形设计[J].钢铁,2013(04):45-50. |
| [8] | WANG Yun;LIU Cai .Numerical simulation and application for process parameters of two-rol straightening[J].ICIC Express Let ers,2012,11(06):2781. |
| [9] | 周丽娜 .拉伸弯曲矫直机及应用中常见问题分析[J].中国冶金,2005,17(09):20. |
| [10] | 张子骞,颜云辉,杨会林,王雷.薄壁管材连续矫直拉伸失稳极限弯曲半径模型[J].钢铁,2014(6):53-58. |
| [11] | 敖列伟;吴伯杰;王志诚.二辊矫直原理及精度分析[J].重型机械,1997(06):41. |
| [12] | 吴伯杰;敖列伟;王志诚.二辊矫直机等曲率辊子参数优化设计研究[J].冶金设备,2000(03):36. |
| [13] | 崔甫.矫直技术与理论的新探索[M].北京:冶金工业出版社,2010:5. |
| [14] | 刘勇 .管棒材矫直机矫直辊辊型及其工艺参数研究[D].沈阳:东北大学,2010. |
| [15] | Motoo ASAKAWA;Kengo KOBAYASHI;Yuki KATAYAMA .Finite element analysis of tilting of metal in bar rolled with three-roll mill[J].ISIJ International,2006(4):553-559. |
| [16] | 孟启星,孙登月,许石民.大直径厚壁管二辊矫直机凹辊辊型有限元研究[J].钢铁,2012(07):49-54. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%