带有非对称板形缺陷的冷轧带钢在连续退火炉内运行时极易出现跑偏现象，尤其是单边浪的影响更为明显。为评价板形缺陷的非对称性，提出了板形不对称度评价指标，并通过对实际跑偏数据与不对称度的对比分析，发现当某段带钢的板形不对称度平均值超过0.5时，带钢极易跑偏，据此制定了连续退火生产线来料板形控制标准，实际应用后，因板形缺陷问题导致的连续退火炉内带钢跑偏断带事故次数由每年8次降至3次。
Asymmetric flatness errors have a great influence on strip wandering in continuous annealing lines,especially the edge buckle. In order to present the asymmetry of flatness,asymmetry ratio is introduced. The relationship between strip wandering distance and asymmetry ratio is analyzed,which shows when the average asymmetry ratio of a length of strip rises above 0.5,the wandering distance of strips also increases. On the basic of analysis a standard of strip flatness produced by cold rolling progress is determined,with which the number of strip break in annealing line caused by flatness errors falls from 8 times per year to 3 times per year.
参考文献
| [1] | 张利祥,李俊,张理扬.连续退火机组带钢瓢曲临界张力的研究[J].钢铁,2012(06):42-45. |
| [2] | 刘艳红,李俊,张利祥,胡文彬.连续退火线上带钢横向压缩应力分布的有限元仿真[J].钢铁,2010(04):60-64. |
| [3] | 张清东,张晓峰,吴彬,彭俊,饶志雄.连续退火线带钢张力控制数学模型研究[J].钢铁,2008(07):44-46,95. |
| [4] | 于孟,饶威,郑晓飞,刘旭明,周建,刘文广,崔阳.薄规格家电板连退炉内跑偏的研究[J].轧钢,2014(3):23-26. |
| [5] | 肖文照,侯煜,王海珍.连续退火线清洗段带钢跑偏问题分析及解决方案[J].传感器世界,2013(01):38-40,25. |
| [6] | 刘丹,崔炳大,傅时君,周永文,孙鹏.首钢连退清洗段跑偏问题的治理[J].轧钢,2013(02):56-58. |
| [7] | 黎万超;韩小云;张拥军 等.带钢设备和产线系统精度检测技术的研究及应用[J].钢铁研究学报,2012,24(S1):11. |
| [8] | 常旭;杜黎明 .板形对连退机组跑偏的影响分析[J].钢铁研究学报,2012,24(S1):60. |
| [9] | 包仁人,张杰,李洪波,宫贵良,贾生晖,刘海军.冷轧板形平坦度计算方法[J].钢铁,2014(12):50-53. |
| [10] | 陈建华,邹鹏程,张长富,杨红伟,张勇串,蒋自武,姚健,余威,孟佳旎.冷轧连续退火线带钢纠偏系统的研究[J].甘肃科技,2013(15):54-57,44. |
| [11] | 唐英.带钢跑偏控制[J].重型机械科技,2007(03):4-6,11. |
| [12] | Takeshi Masui;Yoshiyuki Kaseda .Basic Examination on Strip Wandering in Processing Plants[J].ISIJ International,2000(10):1019-1023. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%