Chatter Marks and Vibration Analysis in a S6-High Cold Rolling Mill

2013 ◽  
pp. 567-575 ◽  
Author(s):  
Maria Cristina Valigi ◽  
Sergio Cervo ◽  
Alessandro Petrucci
Keyword(s):  
Cold Rolling ◽  
Rolling Mill ◽  
Vibration Analysis ◽  
Cold Rolling Mill ◽  
Chatter Marks

Mechanism of the Strip Surface Chatter Marks with 1220 Cold Rolling Mill

2014 ◽  
Vol 575 ◽  
pp. 376-381
Author(s):  
Chang Gui Xie ◽  
Hai Zeng
Keyword(s):  
Cold Rolling ◽  
Rolling Mill ◽  
Vibration Test ◽  
Vibration Source ◽  
Cold Rolling Mill ◽  
Strip Surface ◽  
Depth Study ◽  
The Relationship ◽  
Chatter Marks ◽  
Vibration Mill

Aiming at a 1220 strip surface, where the Cold Rolling Mill had chatter marks, on which the reasons for the formation was tracked tested for in-depth study. Based on the vibration test, the analysis was given to the dynamic characteristics of the rack [1-3]. It was found that had reaction to the mill that caused the forced vibration mill to further accelerate the formation of chatter marks. In the analysis of the mechanism on the chatter marks, the relationship between chatter marks spacing and vibration source was considered in successfully finding out the cause of the 1220 mill chatter marks generated, and then the chatter marks suppression measures were proposed with satisfied effects.

Analysis and Control of Chatter Marks of Strip Steel on HC Cold Rolling Mill

2012 ◽  
Vol 562-564 ◽  
pp. 895-898 ◽  
Author(s):  
Zhi Jiang Xie ◽  
Chang Gui Xie ◽  
Ping Chen
Keyword(s):  
Cold Rolling ◽  
Rolling Mill ◽  
Steel Surface ◽  
Simulation Analysis ◽  
Cold Rolling Mill ◽  
Strip Steel ◽  
Inhibition Effect ◽  
Seventh Order ◽  
And Control ◽  
Chatter Marks

According to the chatter marks on strip steel of HC cold rolling mill , by analysis the collected vibration and simulation analysis on rolling mill, it is found that chatter marks of strip steel surface cuased by the Seventh-order natural frequency. Then, for analysising cuase of chatter marks on strip steel surface, relevant inhibiting chatter marks measures is put forward, and the measures are used for production which got a good inhibition effect of chatter marks.

Developing an effective diagnosis for safety improvement in steelworks

2005 ◽  
Vol 4 (4) ◽  
pp. 229-240
Author(s):  
A.R. Hale ◽  
H.A. v.d. Waterbeemd ◽  
R. Potter ◽  
B.H. Heming ◽  
P.H.J.J. Swuste ◽  
...  
Keyword(s):  
Control System ◽  
Cold Rolling ◽  
Rolling Mill ◽  
Safety Management ◽  
Risk Control ◽  
Cold Rolling Mill ◽  
Rich Picture ◽  
Safety Improvement ◽  
Effective Diagnosis ◽  
Current Risk

The paper describes the methods used for a study of the safety management system and culture of a cold rolling mill in a steel plant. It uses data from diverse sources which can be validated against each other and combined to produce a rich picture of the current risk control system and its shortcomings. The paper also describes the proposed improvements and what the plant chose to implement. This step also throws light on the culture of the plant.

FEM Analysis of Profile Control Capability during Rolling in a 6-High CVC Cold Rolling Mill

2014 ◽  
Vol 988 ◽  
pp. 257-262 ◽  
Author(s):  
Ke Zhi Linghu ◽  
Zheng Yi Jiang ◽  
Fei Li ◽  
Jing Wei Zhao ◽  
Meng Yu ◽  
...  
Keyword(s):  
Cold Rolling ◽  
Rolling Mill ◽  
Rolling Force ◽  
Fem Analysis ◽  
Continuous Variable ◽  
Cold Rolling Mill ◽  
Strip Rolling ◽  
Roll Bending ◽  
Profile Control ◽  
Control Capability

A 3D elastic-plastic finite element method (FEM) model of cold strip rolling for 6-high continuous variable crown (CVC) rolling mill was developed. The rolling force distributions were obtained by the internal iteration processes. The calculated error has been significantly reduced by the developed model. the absolute error between the simulated results and the actual values is obtained to be less than 10μm, and relative error is less than 1%. The developed model is significant in investigating the profile control capability of the CVC cold rolling mill in terms of work roll bending, intermediate roll bending and intermediate roll shifting.

Optimization of the technological and thermal conditions in a reversing cold rolling mill

2015 ◽  
Vol 2015 (1) ◽  
pp. 30-35 ◽  
Author(s):  
E. A. Garber ◽  
A. E. Aleshin ◽  
S. S. Degtev ◽  
A. I. Traino
Keyword(s):  
Cold Rolling ◽  
Rolling Mill ◽  
Thermal Conditions ◽  
Cold Rolling Mill
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