摘要随着我国国民经济的快速发展，城市化步伐的加快，钢材需求日益增长。在工业发达国家中，热连轧带钢以占板带钢总产量的80%左右，占钢材总产量的50%以上，因而在现代轧钢生产中占着统治地位。在这种情况下，由于大量使用的热轧钢板产品，中国先后建立数百热轧带钢生产线，以满足市场需求。随着对环保和企业国家新的发展要求来调整节能钢铁产品越来越迫切产品结构，就必须改造传统生产工艺，创新和优化，这既是热轧带钢不断发展的产品需求，同时也市场对高品质，高价值，低成本，低功耗的热轧带钢产品的需求。87177

以850mm中宽带生产线为例，选择符合要求的设备以保障生产的顺利进行，同时在此基础上进行设备优化。通过粗轧精轧机器的效率提升，保障产品的生产效率，除鳞机，剪切机，热卷箱，卷取机等设备的创新，是整个生产线工艺优化的基础。

毕业论文关键词：热轧；生产线；创新；工艺参数；优化

Abstract With the rapid development of China's national economy, the pace of urbanization and the promotion of the automobile industry, steel demand is growing。In the industrial developed countries, hot rolling strip to account for 80% of the total output of the steel plate, accounting for more than 50% of the total output of steel, and thus the dominant position in the modern steel rolling production。In this situation, as a result of the wide use of hot rolled strip products, the domestic has been the construction of hundreds of hot strip production line in order to adapt to market demand。With the development of the country's new requirements for environmental protection and enterprises to adjust the product structure of energy saving and steel products more and more urgent, it is necessary to transform the traditional production process, innovation and optimization, which is both hot-rolled strip continued evolving product needs, but also the market demand for high-quality, high-value, low-cost, low-power hot-rolled strip steel products。

Take the broadband production line in 850mm as an example, select the equipment to meet the requirements to ensure the smooth progress of production, and on the basis of the equipment optimization。Through improving the efficiency of roughing mill machine, efficiency in the production of security products, descaling machine, shearing machine, coil box, coiling machine and other equipment innovation is the entire production line process optimization based。

Keywords: hot-rolling；production line；innovate；process parameters；optimization

目  录

第一章  绪论 1

1。1 金属轧制工艺的发展史 1

1。1。1 热轧板带钢生产的发展史 2

1。1。2 我国热轧板带钢生产的发展史 2

1。2 热轧工艺技术现状 3

1。2。1 热轧带钢冷工艺 3

1。2。2 薄带生产工艺的新动向 4

1。3 我国热带轧机的发展趋势 4

1。4 薄(中，厚)板坯连铸连轧工艺 5

1。5 最新轧制工艺 6

第二章  产品方案及主要设备 7

2。1 坯料 7

2。1。1 产品规格 7

2。2 产品方案 7

2。3 金属平衡表 8

第三章  生产工艺流程介绍