高强汽车板镀锌线张力控制系统研究

发布时间：2018-05-25 02:29

本文选题：热镀锌 + 双闭环　；参考：《华北理工大学》2017年硕士论文

【摘要】：唐钢高强汽车板镀锌生产线,主要以高强度汽车板及家电用钢为主产品,这就要求其钢板具有良好的表面质量、外观和较好的抗拉性、弯曲性和屈服强度。张力控制作为贯穿热镀锌连续生产过程的重要控制手段,稳定的张力控制必不可少,同时又对提高产品质量和生产作业率具有决定性意义。论文将对唐钢高强汽车板新建热镀锌生产线的张力控制系统,从三个方面入手展开研究分析。首先,研究分析热镀锌生产线的工艺,张力控制原理和张力运动力学平衡稳态方程,并结合生产实践,以开卷机和张力辊为例详细说明张力控制的方法。其次,通过分析活套的张力控制模型,采用双闭环张力控制方法,结合生产现场实际运用情况,说明其设计原则和特点。最后,以张力调节器为主要对象,介绍张力控制系统的硬件设计、软件实现和实施效果。通过上述研究,高强汽车板镀锌生产线张力控制采用双闭环控制方式,张力实际值在设定值的一定上下限范围内,稳定、可靠的波动,使钢带在整个生产链的各个工序段内获得精确、稳定的张力,降低了钢带表面的擦划伤,提高了企业的生产效率和市场竞争力。
[Abstract]:The high strength automobile plate galvanized production line of Tangshan Iron and Steel Co., Ltd is mainly made of high strength automobile plate and home appliance steel, which requires its steel plate to have good surface quality, appearance and good tensile strength, bending property and yield strength. Tension control is an important means of control throughout the continuous production process of hot dip galvanizing. Stable tension control is essential, at the same time, it is of decisive significance to improve product quality and production rate. In this paper, the tension control system of the new hot dip galvanizing production line for high strength automobile plate of Tangshan Iron and Steel Company is studied and analyzed from three aspects. Firstly, the process of hot dip galvanizing production line, the principle of tension control and the steady state equation of tension kinematics are analyzed. The tension control method of unwinding machine and tension roller is described in detail by taking the unwinding machine and tension roller as examples combined with the production practice. Secondly, by analyzing the tension control model of the looper, adopting the double closed loop tension control method and combining the actual application of the production site, the design principles and characteristics are explained. Finally, taking tension regulator as the main object, the hardware design, software realization and effect of tension control system are introduced. Through the above research, the tension control of high strength automobile galvanizing production line adopts double closed loop control mode. The actual tension value fluctuates steadily and reliably within a certain range of upper and lower limits of the set value. The steel strip can obtain precise and stable tension in every working procedure of the whole production chain, reduce the scratch on the steel strip surface, and improve the production efficiency and market competitiveness of the enterprise.
【学位授予单位】：华北理工大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：U468.2;TP273

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