共查询到19条相似文献,搜索用时 78 毫秒
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结晶器振动装置的作用是防止初凝坯壳和结晶器壁发生粘结而被拉破.对方坯连铸机结晶器振动装置机构进行分析,同时为该机构的进一步改进提供了必要的分析依据. 相似文献
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连铸机结晶器四连杆振动机构及其振动误差分析 总被引:1,自引:0,他引:1
在连铸机结晶器振动机构中,四连杆机构被广泛应用。本文针对这种情况,讨论了其作为一种仿弧振动机构的振动误差分析理论和应用。 相似文献
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弧形连铸机结晶器的振动装置可视为八杆机构,若用一般方法精确计算它的偏心距(曲柄长度)是比较困难的。本文用复数矢量方法、数值计算方法通过电算比较方便地求得了偏心距的精确解,从而为结晶器能够精确地按着给定的振幅运动提供了可能。 相似文献
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薄板坯连铸实现液压振动是连铸生产线上的最新技术,它对提高铸坯质量起着非常重要的作用,控制结晶器按给定的振动方式运动是连铸生产过程的关键技术.传统的结晶器的正弦振动无法满足需要.传统的机械结构无法实现这一运动规律.因此提出了基于电液伺服系统的液压传动的振动方式. 相似文献
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论述连铸机结晶器总成的设计改进,对结晶器的内冷水套及其结晶铜管的结构部件在使用过程中进行分析调整,使其更具有合理性及适用性. 相似文献
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Ying-chun Wang Da-yong Li Ying-hong Peng Li-guang Zhu 《The International Journal of Advanced Manufacturing Technology》2007,33(1-2):1-6
A finite difference model was developed and applied to calculate the temperature distribution and solid shell thickness profile
of continuous cast in a steel plant and to control the process of continuous casting. In the developed model, the optimization
module of the water distribution of secondary cooling zone was established according to the metallurgical criterion for billet
and target temperature controlling principle. The quantitative relation expressions of casting speed and water amount can
be regressed by the result data. Meanwhile, the non-linear material properties of specific heat and thermal conductivity as
well as phase changes during solidification were considered in the model. The calculated results of the model were in good
accordance with measured data in the steel plant. Finally, a continuous casting and control system was developed based on
the model. The relations between technology parameters including casting speed, cooling intensity, superheat of melt, and
the casting process were analyzed with the system. The system could also be used to predict the optimum process parameters
and the water distribution of secondary cooling zone on the new steel grade continuous casting. 相似文献
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Yanmin Xie Huping Yu Xueyu Ruan Baofeng Wang Yonglin Ma 《The International Journal of Advanced Manufacturing Technology》2006,30(7-8):645-651
In this paper, the three-dimensional transient model of the mould temperature is established and the temperature variation is analyzed when the thickness of the mould wall and the cooling rates are different. For the numerical computation, a corresponding finite element method (FEM) program is developed with FORTRAN language, and six-face and eight-node isoparameter elements are applied; the Newton method is used to solve the heat equations. The experimental data have been used to validate the model. It is shown that the appropriate mould wall thickness is 10 mm and the different parts of the mould should correspond with cooling water of different rates. 相似文献
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本文介绍了基于计算机图像处理连铸板坯长度测量和切割控制系统的硬件构成和软件功能。讨论了摄像机参数标定方法和系统测量误差。 相似文献
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