宝钢冷轧1550连续退火机组的带钢温度控制

Strip Temperature Control in 1550 mm Cold Rolling Continual Annealing Line of Baosteel

为适应当前市场对汽车板材优质高产的需求,引进了日本钢管公司NKK的最新退火工艺,自行设计、完成了宝钢三期冷轧1550连续退火机组带钢连续返火DCS系统的控制软件。特别在带温控制过程中,通过对大量现场调试数据的提取、分析、总结,建立了具有自适应功能的炉温校正模块,解决了带钢温度控制难以长时间稳定在高精度范围内的难题,克服了传统生产流程中耗费大量过渡钢卷的缺点。自投产以来,控制性能稳定,生产出的成品钢材,无论是表面质量还是内部材质性能,都达到了世界一流的水平。

To meet a high demand of current market on high quality automobile body sheet, Baosteel Corporation introduced Japanese NKK's latest annealing technology to its three phase cold-rolled 1550 Continual Annealing Line, and also developed the software of DCS system for strip temperature control. By mean of extracting, analyzing and summarizing a large amount of operation data in site, the model with self-study function which not only resolved the problem about long time precision temperature control in strip production but also overcome the shortcoming of using a amount of additional transition coils in traditional production. Since the start of production with the stability of temperature better control, both surface and inside finish quality of strip are all got to the first class standard of the world.