针对某2250常规热连轧产品的断面楔形问题进行研究,运用有限元法建立静态仿真模型,定量计算轧件跑偏和来料楔形遗传对热轧出口带钢断面楔度的影响,并通过实际生产数据的采集分析验证了模型计算结果的准确性。提出优化精轧立辊及侧导位的对中精度和开口度裕量,加强轧制过程对中性,并通过投用粗轧强力侧导位、优化粗轧工作辊辊形和加强手动调平控制改善粗轧来料楔形,使热连轧机组因楔形产生的板形三级品率从47%下降到10%以内,取得了明显的效果。
For the product section wedge of one 2250 conventional hot continuous rolling in China,the static simulation model was established and the quantitative effect of word piece deviation and incoming wedge inherit on strip section wedge value was calculated at the outlet of hot continuous mill.The calculation results meet with the practical production.The alignment accuracy and opening gap margin of finish vertical rolling and side guide was optimized to enhance the alignment during the course of rolling.The 3rd grade shape products rate was improved from 47% to 10% through using rough rolling strong side guide,optimization on rough rolling roller contour and advanced manual leveling control to improve the incoming wedge of rough rolling.
参考文献
| [1] | 胡大超.改善热轧带钢轧制过程的稳定性[J].上海金属,2000(03):44-47. |
| [2] | 何安瑞;张清东 .热连轧精轧机组轧件跑偏的探讨[J].冶金设备,1998,99(06):1. |
| [3] | 王宏旭;连家创;刘宏民 .四辊冷轧机轧制过程中带材的板形和断面形状的模拟[J].冶金设备,1996,97(03):11. |
| [4] | Nakajima K;Kajiwara T;Kimura T et al.Automatic Side- Walk Control in Hot Strip Mill[J].The 1980 Japanese Spring Conf For the Technology of plasticity,1980,116:61. |
| [5] | 林丹 .五机架铝热连轧轧件跑偏机理分析[D].中南大学,2009. |
| [6] | 王晓崇,刘义伦,赵先琼,金晓宏.非对称情况下金属出口横向位移函数的求解[J].轧钢,2007(06):12-14,35. |
| [7] | 赵先琼 .铝带热连轧过程跑偏机理和平衡调控的建模及数值仿真[D].中南大学,2010. |
| [8] | Gregorczyk R .Theoretical Description of the Continuous (Tandem) Rolling Mill[J].Journal of Materials Processing Technology,1996,61:338. |
| [9] | 黄平,赵先琼,刘义伦,何玉辉,张颖.铝带热连轧过程跑偏现象三维模拟及其规律研究[J].北京工商大学学报（自然科学版）,2007(03):26-29. |
| [10] | 张赟 .宽带钢冷轧机非对称板形控制特性研究[D].北京:北京科技大学,2011. |
| [11] | 邵健,何安瑞,杨荃,史乃安.热连轧机板形设定控制系统仿真及应用[J].钢铁研究学报,2008(06):53-56. |
| [12] | 甄玉波,肖广耀,张成瑞,宋进英,陈连生.唐钢超薄热带生产过程中的跑偏现象分析与纠偏措施[J].冶金标准化与质量,2007(01):24-27. |
| [13] | 代晓莉,赵宪明,王国栋.带钢热轧粗轧机跑偏控制仿真[J].材料与冶金学报,2003(01):45-49. |
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