Analysis of Startup Process and Its Optimization for a Two-Stand Reversible Cold Rolling Mill
Analysis of Startup Process and Its Optimization for a Two-Stand Reversible Cold Rolling Mill
复制标题
两机架可逆冷轧机开机过程分析及优化
DOI：
10.1155/2017/8715340
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发表时间：
2017
影响因子：
--
通讯作者：
Liu Aimin
中科院分区：
文献类型：
--
作者：
Liu Guangming;Li Yugui;Huang Qingxue;Yang Xia;Liu Aimin
对双机架可逆式冷连轧机启动过程的动态特性进行了分析。提出了林间厚度的延迟算法。建立了加速割线法和切线法相结合的求解联立方程的新方法。分析了不同静态张力建立过程中的厚度和机架间张力转变过程。在上述过程中，两台轧钢机均在恒轧制力控制模式下运行。结果表明，在静态压下过程中，轧缝中的带钢厚度减小。入口支架反向运行，以建立静态的支架间张力。该区域成为来料带材的异常减厚区域。这会导致在随后的启动过程中出现几次机架间张力异常增加。张力增大会对带钢产生冲击力，这是造成带钢在启动过程中断裂的主要原因。优化了静态张力建立工艺，大大减少了机架间张力波动和断带事故。研究结果对双机架可逆式冷轧机组的启动过程有一定的指导意义。
Dynamic characteristic analysis of a two-stand reversible cold rolling mill in the startup process was carried out. The delay algorithm of the interstand thickness was proposed. A new method combined with the accelerated secant and the tangent methods was established to solve the simultaneous equations. The thickness and interstand tension transition processes with different static tension establishing processes were analyzed. Both mills were operated under constant rolling force control mode in the above process. The results show that the strip thickness in the rolling gap reduces in the static mill screwdown process. The entry stand runs inversely to establish the static interstand tension. This area becomes an abnormal thickness reduction area of the incoming strip. It results in several abnormal interstand tension increases in the subsequent startup process. The tension increase leads to an impact force on the strip that is the main reason of the strip breakage in the startup process. So the static tension establishing process was optimized, and the interstand tension fluctuation and the strip breakage accidents both reduced significantly. The results are beneficial to the startup process of the two-stand reversible cold rolling mill.
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影响因子：
6.3
作者：
Luis E. Zárate;F. R. Bittencout
通讯作者：
Luis E. Zárate;F. R. Bittencout
DOI：
10.1016/s1006-706x(12)60146-0
发表时间：
2012-10
影响因子：
2.5
作者：
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通讯作者：
Guangming Liu;H. Di;Cunlong Zhou;Hongchang Li;Jiang Liu
DOI：
10.1007/bf03184555
发表时间：
1999-08
期刊：
KSME International Journal
影响因子：
--
作者：
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通讯作者：
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DOI：
10.1007/bf03028789
发表时间：
2004
期刊：
KSME International Journal
影响因子：
--
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通讯作者：
Seunghyun Kim;Jong-shik Kim;Soon-yong Yang;B. Lee;K. Ahn
影响因子：
4.9
作者：
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通讯作者：
K. Asano;M. Morari