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1 前言 新余中板厂1978年建成投产,是以2300mm三辊劳特式轧机为主体设备的中板生产工艺,可轧制8～20mm的规格产品,产量在12万吨上下徘徊,为适应市场需要和我厂的生存与发展,进行技术改造势在必行。 1992年,我厂技术改造列入省重点技改项目,技改设计要点是新增2500mm四辊轧机和十一辊强力矫直机,同时对加热和精整工艺做相应的改造,以形成年产36万吨4.5～24mm多种规格的中板产品。为满足工艺要求,整个控制系统设计成轧线系统和压下系统两大类。就资金投入而言,约为二千多万元,占整个技改费用的10％,但就其重要性而言,轧线控制系统是否能平稳、可靠运行,直接影响作业率和产量;压下控制系统则对产品厚度这一重要质量指标关系极大。
1 Foreword Xinyu Medium Plate Factory was completed and put into production in 1978. It is a mid-plate production process based on the 2300mm three-roll Lott mill, which can roll specifications of 8 ~ 20mm and output hovers around 120,000 tons. In order to adapt to the market Need and the survival and development of our plant, technological transformation is imperative. In 1992, the technical transformation of our factory included in the provincial key technological transformation projects, technical transformation of the design point is the new 2500mm four-high mill and eleven-roll strength straightening machine, while the heating and finishing process to make the appropriate transformation to form the year Produce 360,000 tons 4.5 ~ 24mm variety of medium-plate products. In order to meet the technical requirements, the entire control system is designed as a roll-line system and a press-down system. About capital investment, about 20 million yuan, accounting for 10% of the entire technical innovation costs, but in terms of importance, whether the rolling line control system can be smooth and reliable operation, directly affect the operating rate and output; The next control system is a product of the important quality indicators of great relevance.