冷轧薄板.docVIP

设计总说明 随着我国经济建设发展，特别是汽车工业、家电行业等迅猛发展,国内对对冷轧板带产品的需求量日益增长。虽然近年来我国在冷轧生产方面已取得较大的进步，但高附加值的冷轧产品生产水平仍较低。因此，我国在冷轧技术、设备、产品质量、产能等方面都还有很大的提升空间。 本设计从钢铁企业实际出发，本设计车间是一个年产165万吨的1700冷连轧带钢生产车间，生产产品规格为0.2～2.5×800～1400mm的冷轧带钢。本设计车间采用酸洗冷轧联合机组生产线，并采用了一系列高精度控制系统。 本设计说明书对带材的坯料准备、酸洗、冷轧、连续退火处理、热镀锌、平整等工艺过程和车间的主、辅助设备选择与校核及车间平面布置进行了说明。 关键词：冷连轧，冷轧薄板，热镀锌，车间工艺设计 Design Description With Chinas economic development, especially the rapid progress of manufacturing capacity such as in automotive industry and household appliance industry, domestic markets demand for cold-rolled products is gradually increasing. In recent years, although the output and quality of domestic cold-rolled strip products has greatly been improved, the production levels of cold-rolled products with high added value is still not high. Therefore, domestic cold production technology, equipment, product quality, and capacity will be still developed in the near future. According to stuations of a steel enterprise, this design is a workshop design with an annual output of 1.65 million tons in 1700 cold rolled strip production. Product specification is 0.2～2.5mm×800～1400mm. The production technology of this design workshop is continuous descaling and cold-rolling, including a series of high-precision control system. The blank preparation, pickling, cold rolling, continuous annealing, hot dip galvanizing, temper rolling, main and auxiliary workshop equipments selection and calibration, and workshop layout were described in this paper. Key Words: cold continuous rolling, cold rolled strip, hot dip galvanizing, workshop technology design. 目录 1 综述 7 1.1 冷轧板简介 7 1.2 国内外冷轧薄板的发展历程 7 1.2.1 国外冷轧薄板发展历程 7 1.2.2 我国冷轧薄板发展历程与现状 7 1.2.3 我国已建成的部分百万吨级冷轧生产线 8 1.2.4 冷轧板带生产工艺流程及其进步 8 1.3 冷轧工艺特点 10 1.3.1 加工硬化对轧制过程显著影响 10 1.3.2 冷轧中采用工艺冷润（工艺冷却和工艺润滑） 10 1.3.3冷轧中采用张力轧制 12 1.4国内外冷轧板带技术的新工艺、新技术 13 1.4.1板带轧制 14 1.4.2板带退火 14 1.4.3涂镀层技术 15 1.4.4彩涂板 15 1.5冷轧带钢生产存在的问题及发展趋势 15 1.5.1我国冷轧板生产存在的许多不足： 15 1.5.2冷轧板带的发展趋势 15 1.