摘要此次课题为年产80万吨棒材生产车间设计，通过设计来分析掌握棒材生产车间的一般方法和生产工艺、生产技术特点，包括工艺流程的确定、加热设备、轧机机组、、孔型系统和孔型设计、控冷设备、精整辅助设备以及劳动定额和经济技术指标的确定等。62232

目前我国的建筑、交通等行业仍在高速发展，建筑用钢的需求在长时间内都将会很高。棒材作为其中相对重要的一部分，广泛用于道路、房屋等建设，是一种需求极大的钢材。因此棒材生产在轧钢车间生产中占有重要的地位，所以掌握棒材生产理论和工艺，有利于提高棒材产品品质，开发新产品、新工艺、新设备，完善生产自动化和计算机控制技术。

此次车间设计，车间生产产品方案选择范围较广，主要产品为圆钢和热轧带肋钢筋，典型产品选取钢种为30CrMn的Ф25.0mm热轧带肋螺纹钢筋进行计算和孔型设计。

此次设计采用180mm×180mm×12000mm连铸方坯，通过步进梁式加热炉加热后进行全连续轧制。全线共设有短应力轧机18架，其中粗轧6架，中轧6架，精轧6架，并在粗、中轧制道次中采用无孔型轧制，精轧孔型为无-圆-椭圆-圆-平椭圆-螺纹孔。很好的完成了对棒材轧制发展综合分析以及车间设计所需步骤，包括工艺流程确定，产品方案制定，主要设备的选型与校核，轧机电机选择校核，辅助设备的选择以及车间产量计算，车间平面布置，技术经济指标等。

毕业论文关键词：棒材轧制，车间设计，热轧带肋钢筋，孔型设计，工艺流程。

the annual production capacity of 80 million tons of bar production workshop design

Abstract The topic for the annual production capacity of 80 million tons of bar production workshop design, through the design analysis and the control rod workshop general method and production technology, the characteristics of production technology of, including the process of determination, heating equipment, rolling mill, and pass system and pass design, control cooling equipment, fine whole auxiliary equipment and labor quota and economic and technical indicators of the determination.

At present, our country's construction, transportation and other industries are still in the rapid development, the demand for construction steel in a long time will be very high. Bar, as one of the most important part, is widely used in the construction of roads, houses and so on. It is a kind of steel with great demand. Therefore production of bar in steel rolling production occupies important position, so to grasp the bar production theory and technology, will help improve the bar product quality, development of new products, new technology, new equipment, improve production automation and computer control technology.

This is the technology design for the annual output of 80 million tons of bar production workshop a year, production workshop has a wide product range, the main products is round steel and hot rolled ribbed steel bar, the typical product selection of steel grade for 30 CRMN Ф 25.0 mm hot rolled ribbed reinforced bar is calculated and the pass design.

This design chose the concast billets with the size of 180mm×180mm×12000mm for the raw material. Preheat with Walking Beam Heating Furnace and then use continuous rolling technology to rolling. There have 18 mill in common, among them,6 for roughing mills,6 for medium mills,6 for finishing mills, and we use the technology of non groove rolling at the 1~12 passes. good completed the design of bar rolling development steps needed for comprehensive analysis and design of the plant, including process flow, product scheme, main equipment selection and checking, mill motor selection and checking, the selection of auxiliary equipment and production workshop's output, workshop layout and technical and economic indicators, etc.