共查询到17条相似文献,搜索用时 78 毫秒
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热轧精轧机换辊自动化控制系统研究 总被引:1,自引:0,他引:1
基于武钢热轧厂1580mm热连轧精轧机工作辊快速换辊系统的应用,重点分析换辊自动化系统的工作原理,论述了快速换辊的控制思路和优化方法.实践证明,该系统运行稳定可靠,减少了换辊时间,最大程度地提高了换辊效率. 相似文献
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辊系管理好坏直接影响钢铁企业生产效益,建立辊系管理信息化系统,不仅指导现场合理经济的使用辊子,使得钢铁企业从横向和纵向规范辊系管理,而且能去除繁琐复杂的人工记录,降低辊系故障率,减少误操作,提高产品质量。本系统通过Asp语言编写,结合Sqlserver2008强大的数据库系统,利用局域网连接IE浏览器进入系统操作,及时动态跟踪轧辊状态、库存情况和轧辊消耗,对辊系的检测、报废、更换、验收和故障查询管理,利用Flash曲线记录历史趋势,生成报表打印和导出Excel文件,最终实现辊子的全流程、全寿命管理。 相似文献
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本文全面论述了基于SIMATIC TDC的某热轧厂工作辊窜辊控制系统,介绍了窜辊装置和控制,讨论了系统硬件结构和软件结构,并分析了系统软件程序。 相似文献
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介绍马鞍山钢铁股份有限公司万能精轧机自动辊缝控制系统结构及各部件分布.重点介绍液压位置控制HPC的比例积分控制,蝴蝶适应系数K-BUT引用和计算方法.阐述自动辊缝控制AGC工作原理,自动辊缝控制AGC工作方式,辊系弹性模数Cg计算公式和测试方法. 相似文献
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王健 《计算机光盘软件与应用》2014,(18):150-151
用于印刷的版辊是软包装印刷行业最具有行业特色和难于管理的物料,尤其是版辊的使用寿命管理。本文作者在软包装企业从事信息化管理和系统开发工作,结合多年心得和经验,开发出了一套实用的版辊管理系统,下面就谈谈是如何实现对印刷版辊生命周期管理及系统实现。 相似文献
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全面论述了基于SIMATIC TDC的某热轧厂精轧机换辊自动化控制系统,介绍了换辊工艺和控制模式,讨论了系统硬件结构和软件结构,并分析了系统软件程序。 相似文献
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Yung‐Hui Yeh Chun‐Cheng Cheng Benjamin Chih‐Ming Lai Chyi‐Ming Leu Yung‐Lung Tseng 《Journal of the Society for Information Display》2013,21(1):34-40
A flexible hybrid substrate was developed and demonstrated for roll‐to‐roll (R2R) manufacturing. Layer‐by‐layer misalignment can be well controlled within 5 µm. Top‐gate amorphous InGaZnO thin‐film transistor was fabricated on the flexible hybrid substrate by R2R process for the first time. A 4.3‐in. segment‐type reflective Electro‐Phoretic Display (EPD) display was also demonstrated to show the R2R capability of flexible substrates. 相似文献
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提供了自行车无缝车圈轧制控制系统的研究结果,揭示了车圈半径与轧辊压下量之间的关系和轧辊压下量应遵循的函数规律。给出了系统的仿真结果,并与实际产品进行了比较,取得了一致的效果,较好地解决了目前车圈生产中质量难以控制的问题。 相似文献
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Kazushige Takechi Shinya Yamaguchi Hiroshi Tanabe Setsuo Kaneko 《Journal of the Society for Information Display》2010,18(6):391-398
Abstract— Rollable silicon thin‐film‐transistor (TFT) backplanes utilizing a roll‐to‐roll process have been developed. The roll‐to‐roll TFT‐backplane technology is characterized by a glass‐etching TFT transfer process and a roll‐to‐roll continuous lamination process. The transfer process includes high‐rate, uniform glass‐etching to transfer TFT arrays fabricated on a glass substrate to a flexible plastic film. In the roll‐to‐roll process, thinned TFT‐glass sheets (0.1 mm) and a base‐film roll are continuously laminated using a permanent adhesive. Choosing both an appropriate elastic modulus for the adhesive and an appropriate tension strength to be used in the process is the key to suppressing deformation of the TFT‐backplane rolls caused by thermal stress. TFT backplanes that can be wound, without any major physical damage such as cracking, on a roll whose core diameter is approximately 300 mm have been sucessfully obtained. Incorporating the TFT‐backplane rolls into other roll components, such as color‐filter rolls, will make it possible to produce TFT‐LCDs in a fully roll‐to‐roll manufacturing process. 相似文献
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滚动条是人们在Windows平台下设计各种应用程序来滚动对象经常用到的控件,面向对象的可视化程序设计语言提供的控件有许多是不支持滚动条的。本文针对这一存在的不足,提出了对不支持滚动条的控件,用滚动条来实现对象滚动的程序设计思路和方法。 相似文献
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Takatoshi Tsujimura Junichi Fukawa Kiyoshi Endoh Yuuji Suzuki Kazuhiko Hirabayashi Takahiro Mori 《Journal of the Society for Information Display》2014,22(8):412-418
To come out with a successful organic light‐emitting diode (OLED) lighting business, it is very important to have clear differentiation of OLED from LEDs. Flexible OLED has merits, such as capability to be mounted on the curved wall, which is not easy for LEDs to achieve the feature. There are several approaches to make flexible OLEDs especially among those plastic barrier films that can bring high level of flexibility, which could not be achieved by any conventional lighting method. In this paper, barrier films with various water vapor transmission rate values, including 10? 6 order, are applied, and the conditions to have almost no dark spot growth under 85 °C and 85% high temperature/humidity test are shown. Flexible OLED panels are manufactured with the world's first roll‐to‐roll equipment using plastic barrier film. 相似文献
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该文从教学需求出发,设计一套具有权重的随机点名课堂提问系统,其目的是提高课堂教学质量与学生参与的积极性。该系统具有两个方面的功能,第一,可以避免教师在课堂教学中的带有个人感情色彩的提问偏重,给予每个学生相对均等的回答课堂提问的机会;第二,可以根据学生知识掌握情况以及课堂问题难易程度,适度调节随机点名的权重分配,提高学生问题回答质量与课堂效率,将课堂提问在教学环节中发挥到最大的作用。 相似文献