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为更好地控制轧钢生产,宣钢小型轧钢厂针对自动化设备跨区域连接特性和无通用网络监测系统情况,使用C#程序设计语言在Windows平台下设计和开发了工业以太网实时监测系统,对轧钢生产进行连接测试和实时监测后,实现了轧钢生产自动化网络故障的快速诊断和排除。 相似文献
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美国Citisteel公司轧钢厂四辊轧机自动轧钢系统 总被引:2,自引:0,他引:2
介绍由钢铁研究总院开发的美国Citisteel公司轧钢厂液压AGC自动轧钢控制系统,着重讲述自动轧钢控制系统的特点、构成,功能和控制效果。该系统现已投入使用并通过厂方验收。 相似文献
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通过对湘钢轧钢加热炉的热平衡测试,了解炉子的热工作状况.利用测试结果分析各轧钢加热炉燃料消耗不均的原因,同时探讨了湘钢轧钢加热炉今后的节能方向. 相似文献
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对轧钢技术近期的发展情况进行分析。提出当前轧钢技术研究与开发有以下四个特点:1.钢材使用部门的技术进步已成为轧钢技术研究和开发的主要导向和推动力;2.高新技术的应用是轧钢技术研究和开发的显著特征;3.短流程、与上下游工序的集成是轧钢技术研究和开发的发展方向;4.高速度、快节奏的技术开发与成果转化。根据上述特点结合我国现实情况,对今后轧钢技术的研究与开发谈一些看法。 相似文献
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CIMS是下个世纪制造业组织生产的主导模式,能够有效提高轧钢企业应变能力和新产品开发能力,文章回顾了CIMS的形成与发展,从概念、功能和技术三个角度分析轧钢企业CIMS的内容,简要探讨了轧钢企业CIMS中的关键技术与方法。 相似文献
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胡大超 《上海冶金高等专科学校学报》1999,(4)
在分析热轧带钢时产生带钢运行故障原因的基础上,对带钢粗轧和精轧等过程提出了相应的控制措施.提高了带钢轧制过程的稳定性,保证了带钢产品的质量. 相似文献
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热连轧生产过程中经常出现设备和质量故障,为了快速确定故障原因并排除故障,需要对生产过程开展监控以及对故障进行诊断。基于热连轧生产过程采集的数据,采用核主成分分析法对热连轧轧制过程中精轧机组相关数据进行监控,并对断带故障进行诊断。先使用平方预测误差(SPE)统计量监控生产过程,再基于核主成分分析绘制出各变量贡献率图,最后依据贡献率大小找出造成故障的主要影响变量。与主成分分析法相比,采用核主成分分析法更为高效和准确。基于核主成分分析的热连轧断带故障诊断可节省故障分析时间,为热连轧生产过程调整和故障排除提供依据,具有重要的理论意义和实际应用价值。 相似文献
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提出了用于热连轧分层递阶智能控制中的张力复合最优控制系统,板形板厚协调最优控制和速度设定的温度控制等3个子控制系统的优化设计方案,应用轧制主程和二次型目标函数推出板形板厚协调闭环最优控制、穿带过程辊缝最佳校正、轧辊凸度实时估计,最佳轧辊凸度设定和最佳弯辊力设定等热连轧过程优化策略。 相似文献
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In a conventional production of deep‐drawable sheets of steel, a hot rolling in austenite and a cold rolling at room temperature together with a subsequent recrystallization annealing are applied with a cold strip as a final product. As a cost saving replacement for this, a thin‐gauge hot strip with a required deep‐drawability can be employed. A conventionally (in austenite) hot rolled strip is hardly applicable for this because of its unsatisfactory texture as well as because of the technical difficulties to produce hot strips with sufficiently small thicknesses. As a promising realization of cost saving thin‐gauge deep‐drawable hot strips of steel, a warm rolling can be applied with reduced finish rolling temperatures. In this practice the finish rolling is shifted down into the temperature region of ferrite. In the present work extensive laboratory tests on IF‐ and ELC‐steel were carried out by using the hot deformation simulator Wumsi. By the measurements of the texture development as well as by the computing of r‐values, the process parameters of ferritic rolling and a subsequent direct recrystallization in the coil of these steels could be optimized. 相似文献
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A new mathematical model to predict rolling force and microstructure evolution in hot strip rolling has been proposed. This model is constructed by Orowan's theory, FDM analysis for temperature and incremental theory for the evolution of microstructure. It enables us to predict rolling force accurately, since the flow stress is directly calculated by dislocation density. As the time for computation is quite short, the proposed model can be used to ensure the deviation of grains in the product coils. The proposed model has been used to characterise large reduction tandem hot rolling. There is good relationship between ferrite grain size of the hot strip and dislocation density. Then one can plan the best schedule to roll ultra fine grain strip considering strain, strain rate and rolling temperature. Also, the proposed model is general so that one can predict microstructure in any rolling process to product new steel with correcting material data. 相似文献
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In the so‐called ferritic rolling the finishing is shifted down into the temperature region of ferrite, which enables a production of thinner hot strips (compared to the conventional hot rolling in austenite) with a changed texture development. The present study is focused on the effect of the process parameters of such initial warm rolled hot strips on the texture formation and hence on the deep‐drawing quality of the final cold strips. A special attention is given to the transmission of the hot strip texture to the cold strip. The investigation was carried out on commercial IF‐ and ELC‐steels by a laboratory simulation with the hot deformation simulator Wumsi (rolling simulated by the plane strain compression test). It was possible to optimize cold rolling and subsequent annealing by means of the measurements of the texture development during the ferritic (warm) deformation as well as the parameters of the processing route of such special production of cold strips by means of the calculation of r‐values. If compared with the conventional processing route, a considerable improvement of deep‐drawability with a diminished earing is achievable especially with the IF‐steel. 相似文献