mill vibration during cold rolling

Mill Vibration During Cold Rolling

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Mill Vibration Phenomena during Cold Rolling - …

Mill Vibration Phenomena during Cold Rolling. All machines vibrate during operation. However, only a few of these vibrations cause problems to the product or the machine itself. Typically, the most damaging vibrations involve a natural resonance of the machine which significantly increases the motion of critical components.

Rolling Mill Vibration Model - Innoval Technology

Understand mill vibration issues, such as 3rd octave gauge chatter and 5th octave roll/strip marking, with our Rolling Mill Vibration Model. In common with other rotating machines, rolling mills are prone to many different vibrations during rolling and most do not cause a problem.

CONTROL PROCESS FOR A COLD ROLLING MILL BY VIBRATIONS …

most important parts of cold rolling mills. This phenomenon causes severe damage for the mill machine and strip quality (Fig. 1). Fig. 1. Strip faults, due to rolling mill vibration The integrated control process is made to analyse the vibrations which are produced on the …

(PDF) VIBRATION MONITORING OF TANDEM …

VIBRATION MONITORING OF TANDEM MILLS AT THE ARCELOR TILLEUR COLD ROLLING MILL. September 2015; ... rolling mills are prone to many different vibrations during rolling and most do not cause a problem.

A Review on Chatter Analysis in Cold Rolling process

A Review on Chatter Analysis in Cold Rolling process. JOJ Material Sci. 2017; 2(1): 555578. DOI: 10.19080/JOJMS.2017.02.555578 002 Juniper Online Journal Material Science Among these chatter, both third and fifth octave mode of chatter are related to vertical vibration of rolls. Third octave

Active chatter damping for cold rolling mills | SMS …

In cold rolling mills vibrations of mechanical parts and/or strip can interfere with several quality parameters like thickness, shape, surface quality and others. Since vibrations occur at higher speeds in most of the cases, rolling speed of single- or multi-stand mills …

Dynamic Model of the Hot Strip Rolling Mill …

The vibration demolding of the crystallizer leads to slab thickness deviation in continuous casting processes. Therefore, in this paper, the dynamic model of the hot strip rolling mill vibration resulting from entry thickness deviation is proposed and its dynamic characteristics are studied. First, the dynamic model of vertical vibration in the hot strip rolling mill is established based on ...

Multiple-Modal-Coupling Modeling and Stability …

For the wide existence of vibration in cold rolling mill, this stone has conducted a systematic study on multiple-modal-coupling modeling and stability analysis of rolling mill vibration. The following conclusions are drawn: (1) A rolling mill multiple-modal-coupling vibration model is established by coupling the rolling mill structure model and the dynamic rolling process model.

Spatial vibration of rolling mills - ResearchGate

Spatial vibration of rolling mills. ... The self-excited vibration of the 1,850 cold rolling mill was ... The rolls in contemporary four-high mills cannot be maintained parallel during the rolling ...

Vibration Analysis of Chatter in Cold Rolling Mill

In order to study the influence of tension and friction on rolling speed, two stands tandem systems based on two degrees of freedom vibration model are investigated. The following findings were obtained : (1) As the rolling speed increases, rolling mill vibrations become less stable.

Influence of Rolling Lubrication for Self-Excited ...

1-1-2013 · On account of the self-excited vibration in No. 5 stand of 1420 cold rolling mill, the relationship between rolling lubrications and self-excited vibration of rolling mill was theoretically studied. The self-excited vibration in No.5 stand of the mill was restrained by optimizing the lubrication technical parameters, and the critical stabilized rolling speed was increased from650 m/min to ...

Rolling (metalworking) - Wikipedia

Hot rolling is a metalworking process that occurs above the recrystallization temperature of the material. After the grains deform during processing, they recrystallize, which maintains an equiaxed microstructure and prevents the metal from work hardening. The starting material is usually large pieces of metal, like semi-finished casting products, such as slabs, blooms, and billets.

Analysis of Vibration for Sendzimir Mill in Cold …

In order to clarify the vibration phenomenon in the Sendzimir mill, two simulation models were developed to calculate the natural frequencies of Sendzimir mill vibration, and the frequencies of mill vibration during the cold rolling of stainless steel strip were measured. Two distinct vibration modes were found to be nealy 700 Hz.

Research Article Multiple-Modal-Coupling Modeling and ...

Research Article Multiple-Modal-Coupling Modeling and Stability Analysis of Cold Rolling Mill Vibration LingqiangZeng,YongZang,andZhiyingGao School of Mechanical Engineering, University of Science and Technology Beijing, Beijing , China Correspondence should be addressed to Zhi ying Gao; [email protected]

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