موقعك الحالي:صفحة رئيسية>المنتجات
Abstract. The presence of several rolls in cluster cold rolling mills makes on-line vibration monitoring and failure analysis difficult. The dynamic behaviour of rolls strongly depends on the ...
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2020-11-1 · A mill vibration monitoring system was developed to monitor the oscillating movements of the rolls in the tandem cold rolling mill. A sketch of the rolling mill vibration data monitoring system and the specific locations of the sensors (locations A, B, C, and D) were shown in Fig. 3.Location A was the operation side of the bottom work roll (WR) bearing, location B
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2010-8-1 · Abstract The presence of several rolls in cluster cold rolling mills makes on-line vibration monitoring and failure analysis difficult. The dynamic behaviour of rolls strongly depends on the rolling pressure in the roll bite. Strip vibration applies a dynamic component on the rolling force acting on the work roll and may excite the resonance of the mill stand.
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2021-1-1 · Cold rolling plays a crucial role in flat steel production. In recent years, it has become extremely difficult to ignore the existence of chatter, also called “ghost vibration” by operators who work in milling plants [], which restricts the quality and efficiency of strip production.Fig. 1 shows the layout of a tandem cold rolling process. Mill vibration often occurs in stand 4 and 5 ...
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Chinese rolling mill undertakes condition monitoring and vibration analysis to extend the life of its board mill equipment. Finnish heavy process machinery specialist Valmet will provide roll maintenance and condition monitoring services to Shanying International at
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The vertical vibration often occurs during the rolling production, which has an influence on the accuracy of rolling mill. In order to effectively suppress the vertical vibration of the rolling equipment, the rolling mill model with vibration absorber device was established. Based on the main resonance singularity of the rolling mill system, the best combination of opening
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2021-1-19 · Considering the two kinds of nonlinear constraints of rolling mill hydraulic cylinder, spring force and friction force, the vibration model of rolling mill system is established. The amplitude frequency response equations are obtained by using the average method. Comparing the time history curves of vertical vibration displacement of rolling mill system under the
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2016-9-9 · Vibration Based Condition Monitoring of Rolling Mill V inod D.TIrpude, Jayant P.Modak, Girish D. Mehta Abstract: All over the India, most of the processing industries are involved with rolling operations for steel and alloyed materials. To perform these operations, rolling mills are used. ...
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Wu S, Wang L, Shao Y, et al. Vibration characteristic analysis of twenty-high rolling mill with local defect on roll surface based on the time-varying contact stiffness.
Read More2022-1-25 · Mill Vibration Phenomena during Cold Rolling. All machines vibrate during operation. However, only a few of these vibrations cause problems to the
Read More2010-8-1 · Abstract The presence of several rolls in cluster cold rolling mills makes on-line vibration monitoring and failure analysis difficult. The dynamic behaviour of rolls strongly depends on the rolling pressure in the roll bite. Strip vibration applies a dynamic component on the rolling force acting on the work roll and may excite the resonance of the mill stand.
Read More
Chatter vibration of a 4-hi rolling mill was studied by examining the step and frequency response that specific excitation produces in 3-D finite element analysis. Methods of suppressing chatter ...
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The analysis of rolling mill vibrations is usually limited to simple planar or low DOF vibrations. In reality, however, rolling mill vibrations take place in six DOF leading to spatial behaviors ...
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2009-12-9 · Vibration analysis of a Sendzimir cold rolling mill and bearing fault detection E Brusa, L Lemma, and D Benasciutti Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 2009 224 : 8 , 1645-1654
Read MoreThe vertical vibration often occurs during the rolling production, which has an influence on the accuracy of rolling mill. In order to effectively suppress the vertical vibration of the rolling equipment, the rolling mill model with vibration absorber device was established. Based on the main resonance singularity of the rolling mill system, the best combination of opening
Read More
Wu S, Wang L, Shao Y, et al. Vibration characteristic analysis of twenty-high rolling mill with local defect on roll surface based on the time-varying contact stiffness. Eng Failure Anal 2014; 42 ...
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The Arcelor T illeur cold rolling mill. has a 5-stand tandem mill that is prone to 3 rd order chatter and a. 4-stand tandem that is subject to 5 th order chatter. The. COMP ASS vibration ...
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A numerical model of the rolling mill including the driv-ing system was built as rigid bodies to perform the multi-body dynamic analysis. The static rolling force of the mill was measured and the dynamic rolling force was computed according to the analytical model. Because the 6-high cold rolling mill is structurally symmetrical, only the upper ...
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2022-1-25 · 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
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2018-5-12 · Fault Detection of Roller Bearing Using Vibration Analysis . Rabinarayan Sethi. 1.Subhasini Muduli. 2 . Abstract—The rolling elementbearings are commonly used in rotating machinery, it mostly covers a broad range of rotating machinery and plays a significant role in industrial applications which is considered as a most critical element.
Read More2010-8-1 · Abstract The presence of several rolls in cluster cold rolling mills makes on-line vibration monitoring and failure analysis difficult. The dynamic behaviour of rolls strongly depends on the rolling pressure in the roll bite. Strip vibration applies a dynamic component on the rolling force acting on the work roll and may excite the resonance of the mill stand.
Read More
Based on the analysis of the influence of roll vibration on the elastoplastic deformation state of a workpiece in a rolling process, a dynamic rolling force model with the hysteresis effect is established. Taking the rolling parameters of a 1780 mm hot rolling mill as an example, we analyzed the hysteresis between the dynamic rolling force and the roll vibration displacement
Read MoreChinese rolling mill undertakes condition monitoring and vibration analysis to extend the life of its board mill equipment. Finnish heavy process machinery specialist Valmet will provide roll maintenance and condition monitoring services to Shanying International at
Read More2009-12-9 · Vibration analysis of a Sendzimir cold rolling mill and bearing fault detection E Brusa, L Lemma, and D Benasciutti Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 2009 224 : 8 , 1645-1654
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2002-3-26 · An analysis of rolling mill chatter was performed for the purpose of identifying characteristics of the vibrations and to determine any dependency on the rolling schedule. In particular, a stability criterion for the critical rolling speed is used to predict the maximum rolling speed without chatter instability on schedules from a 5 stand ...
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The Arcelor T illeur cold rolling mill. has a 5-stand tandem mill that is prone to 3 rd order chatter and a. 4-stand tandem that is subject to 5 th order chatter. The. COMP ASS vibration ...
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2020-9-10 · The traditional mill chatter mechanism model cannot meet the monitoring and rapid diagnosis needs of the rolling process in the field. In this paper, a data-driven mill vibration analysis method is proposed. The main objective of this study was to develop a mill
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2017-2-15 · The elastic deformation of rolling mill elements during the rolling process is important. By knowing the displacement of rolls, the optimum gap between the work rolls can be calculated. In present research, a vibration model with two degrees of freedom is proposed for a cold sheet rolling mill and the stiffness parameters of different mill elements are calculated. A numerical
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2022-1-25 · 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
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2022-1-25 · This type of speed-dependant vibration will be a mechanical forced vibration within the rolling mill, for example due to a defective gear or bearing. Hence, the team collected data for all potential sources of forced vibration.
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الصين -تشنغ تشو -المنطقة الوطنية للتنمية الصناعية للتكنولوجيا المتطورة، جادة العلوم رقم 169.
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