对轧机振动性质、致振机理进行了研究，通过对连轧机组中发生振动的F2、F3轧机进行的现场测试和分析发现，轧机振动以水平方向为主；轧辊和轧件上的振纹频率和振动频率相同，并且将最终振纹折算到轧制界面上后其长度与接触弧长相等。这说明振纹与接触弧有直接的联系。提出了CSP轧机的辊面振纹扩展致振机理，即轧机振纹是工作辊初始振纹在轧制过程中逐渐在辊面扩展形成，轧辊表面振纹引起并加剧了轧机的非正常振动。该理论对同类轧机振动抑制具有重要理论和应用价值。
By site testing and data analyzing for F2 and F3 stands which vibrate more seriously, it was found that the frequency of the chatter marks is equal to the vibration frequency. The calculation result shows that the length of chatter marks on the roller and strip transferred on to rolling interface is equal to the contact arc length, which indicates that there is a direct relation between the chatter marks and the contact arc. Based on such observation, a mechanism of mill vibration was constructed. During the rolling process, chatter marks on the work roller are spreading from initial marks,making the mill vibration aggravated. This mechanism was supported by monitoring data,and is important for vibration prevention on same kind of mills.
参考文献
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%