年产340万吨轧带钢1800车间工艺设计.doc

 毕业设计说明书 设计题目：年产340万吨热轧带钢1800车间工艺设计 学生姓名： 专业班级： 学 院： 指导教师： 2013年0月日 摘 要 本设计为年产340万吨热轧带钢1800车间工艺设计。本着为汽车板供料的原则制定了轧制工艺，其中包括汽车大梁钢、船板钢、管线钢，汽车板用钢等，并以其为出发点，尽量从工艺上使产品做到高质量、高附加值。根据产品规格和设计要求，确定轧机各主要部件的尺寸以及一些必要的工艺参数。本设计经过仔细比较，并结合现场使用情况，2架可逆粗轧，7架精轧轧机，其中前4架精轧为CVC。粗轧两架为CVC，可以按比例凸度轧制，轧制力不必被迫递减，增加粗轧压下量，稳定提供精轧中间坯需要的凸度，降低中间坯厚度，这对产品的残余应力控制起到了关键作用。对典型产品压下规程的设计包括压下量的分配、速度制度的确定、温度制度的确定以及力能参数的计算等。此外，校核轧辊与选择电机。最后，本设计还对车间内的各种消耗和厚度控制等做了简要介绍。 关键词:热轧带钢；汽车板；粗轧CVC板形控制；比例凸度Abstract This graduate design which yearly produces 3.4 million tons of hot rolling strips production is 1800 workshop design. To the principle of providing raw materials for car plate steel,we develop a product program including automobile big joist steel, ship plate steel, pipe line steel ,car plate steel and so on, and taking it as the starting point make the products high grade and the high attachment value as far as possible. According to product specifications and design requirements, we identify the major components of the mill size and the necessary parameters.After careful comparison, combining with the use situation in the field we select six CVC mills,including two rough mills and four mills on the first part of the finish rolling , which play a key role in the plate shape control of the product. The Drafting Schedule Design of the typical product also includes reduction distribution, the speed system, the system of determining the temperature, calculating mechanical parameters and parameters selected. Checking roll and choice electrical are the key problems to normal production.In order to work smoothly, the design does not allow equipment full-load or overload of work for a long time. In addition, this design also made the brief introduction to every kind of consumption in workshop and thickness control. Keywords: hot rolling strip steel; two separate reversible rolling mills; CVC plate shape control目 录 摘 要 I Abstract II 引 言 1 综 述 2 第1章 建厂依据及产品大纲 4 1.1 建厂依据 4 1.2 产品大纲 4 1.2.1 原料规格选择 4 1.2.2 产品规格 4