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分析了中厚板轧机工况在线监测系统的必要性、实用性,同时对中厚板轧机工况在线监测系统的功能、构成、硬件和软件配置及应用前景做了详细的技术阐述。 相似文献
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本文介绍了莱钢Φ650mm轧机在线监测系统的功能,硬件组成,软件设计特点。该控制系统可实现对Φ650mm轧机主机列多点数据采集,具有适应性强,易扩充,操作方便,可靠性高等特点。 相似文献
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作为高线生产棱心设备的精轧机.如果出现单机运行.将严重影响成材率和合格率。本文通过对精轧自动控制系统的概述,分析了单机运行的原因,并介绍了一种监控单机运行的方法。控制系统自2003年改进以来.如今运行稳定,具有推广应用的意义。 相似文献
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本文介绍了宝钢205Omm热轧机精轧机组CVC液压系统利用系统本身设备采用高压大流量冲洗新工艺,在提高冲洗精度、缩短冲洗时间和降低劳动强度等方面都取得了较好的效果。 相似文献
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实际生产中铝带材冷轧机和铝箔轧机易于发生由于工作辊轴承箱温度过高而造成的火灾和设备事故.为此,我们对工作辊轴承箱进行了改造,并设计安装了温度监控系统,取得到了良好效果. 相似文献
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In accordance with the feature of pure delay in monitor AGC system for cold rolling mill, a new fuzzy self-tuning PID Smith prediction controller is developed. The position control model is deduced based on a single stand cold rolling mill, and the fuzzy controller for monitor AGC system is designed. The analysis in dynamic performance between traditional PID Smith prediction controller and fuzzy self-tuning PID Smith prediction controller is done by MATLAB toolbox. The simulation results show that fuzzy self-tuning PID Smith controller has stronger robustness, faster response and higher static accuracy than traditional PID Smith controller. 相似文献
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The rolls in contemporary four-high mills cannot be maintained parallel during the rolling process. There- fore, four-high rolling mill vibrations take place in six degree of freedom (DOF) leading to spatial behaviors invol- ving vertical, horizontal, axial, torsional, cross and swinging vibration modes resulting in complex relative motions between the rolls. Two numerical methods, modified Riccati-transfer matrix method (Riccati-TMM) and finite ele- ment method (FEM), are presented to analyze a spatial vibration characteristic of two four-high rolling mills with different stability. The natural frequency and mode shape of four-high rolling mills are obtained, and the clearance has a great effect on natural frequency and mode shape. In addition, field testing experiment is also conducted to measure natural frequency by power spectrum analysis of rolling mill vibration. Experimental results basically agree with those calculated by Riccati-TMM and FEM, which means that the Riccati-TMM and the FEM can be used for analysis of spatial vibration of four-high rolling mill. Meanwhile, the spatial vibration shows more compound vibra- tion behaviors and the negative effect of horizontal, vertical, cross and swinging vibration modes are effectively con- trolled after redesign of rolling mill. These advantages have a great significance for the rolling mill to be operated with a much higher rolling speed and improved yield of products. 相似文献
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热轧生产线活套动作由跟踪系统来控制。控制系统的跟踪修正是由实际的轧机咬钢和抛钢信号来触发;由于轧机标定的原因,在轧制极薄规格时,下游机架设定辊缝较小,造成实际辊缝已经压靠并产生轧制力。而轧制力的触发修正了带钢头部的位置,致使上游活套上抬以达到控制机架间恒张力的作用,一旦咬钢信号建立有误,势必造成轧制事故,所以机架咬钢信号判断依据的给定至关重要;首钢京唐钢铁公司热轧生产线提出了依据本架轧机实际轧制力与压靠力的差值来判断是否咬钢,实际应用后保证了生产线的稳定运行。 相似文献
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为充分应用宝钢投产以来所积累的在线质量数据,对产品进行定量的、有科学依据的分析和评价,采用SAS软件开发了1580热轧质量统计分析系统。文章介绍了宝钢在1580mm热轧机组开工期间,采用数据仓库技术进行质量分析和质量改进的尝试。 相似文献
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初轧机主传动系统扭转自激振动的稳定性 总被引:1,自引:0,他引:1
用变量摄动法对初轧机主传动系统扭转自激振动的稳定性进行了初步研究,讨论了稳定性条件,为初轧机打滑状态的诊断、监测提供了参考依据。 相似文献