热连轧带钢生产现状及发展趋势

热连轧带钢生产现状及发展趋势

摘要

本文介绍了最近十几年热连轧带钢生产的最新发展、技术进步和目前的状况，全面分析了热连轧带钢的先进技术、新装备。并针对现状，展望对未来发展的趋势。由于可控硅供电电气传动及计算机自动控制等新技术的发展，液压转动、升速轧制、层流冷却等新设备新工艺的利用，热连轧机的发展更为迅速。热轧带钢是通用性钢材，目前是我国急需的短线产品，被广泛用于国民经济各部门。热轧带钢按宽度尺寸分为宽带钢及窄带钢两类，宽度在700-2300mm者为宽带钢，由于宽度及卷重较大，所以在大型带钢厂连轧机上生产，其用途主要用于汽车、拖拉机、机械制造、船舶制造、桥梁、锅炉制造等。一般宽度在50-250mm为窄带钢，多作为焊管、冷弯型钢、冷轧带钢的原料和用于建筑、轻工、机电等部门。生产热轧带钢在我国目前有横列式、纵列式、连续式和行星式轧机等多种型式。目前世界约有140套宽带热连轧机，其中60%为1960年所建在发展的国家中，由连轧机生产的板带钢已达板带钢总产量80%以上，占总钢材产量的50%以上，产品已达到优，高产和低成本的要求，因此热连轧带钢生产已成为轧钢生产的主流。

关键词：热连轧带钢轧机、现状及趋势

Current situation and development trend of hot rolling strip

production

Abstract

This paper introduces the latest development in recent years, hot rolling strip production technology and the present situation, a comprehensive analysis of the advanced technology, the new equipment of hot rolling strip. And in view of the present situation, prospect of the future development trend. Due to the development of new technology of thyristor power supply electric drive and computer automatic control, with hydraulic rotation, increasing speed rolling, laminar cooling of new equipment and new technology of hot rolling mill, the more rapid development. Hot rolled strip steel is universal, is currently China's much-needed short-term products, widely used in various sectors of the national economy. Hot rolled strip in width size as broadband and narrowband steel steel two, width in 700-2300mm for broadband steel, because the width and volume weight is bigger, so the production in large belt steel rolling mill, its use is mainly used for automobile, tractor, machinery manufacturing, shipbuilding, bridge, boiler manufacturing etc.. General width of 50-250mm strip steel, much as welded tube, cold-formed steel, cold-rolled strip steel material and used for building, light industry, mechanical and electrical department. The production of hot rolled strip in China have transverse, longitudinal, continuous and planetary mill and other types of current. At present, the world has about 140 sets of wide hot strip mill, of which 60% were built in 1960 in the developed countries, the strip rolling mill production has reached more than 80% of the total output of steel strip, accounted for more than 50% of steel production, the products have reached the quality, high yield and low cost requirements, so the hot strip rolling has become the mainstream in steel rolling production.

Key words:current status and trend of hot strip mill

目录

摘要 (1)

Abstract (2)

1、前言 (2)

2、热连轧生产工艺的发展 (4)

3、带钢热连轧生产过程 (4)

3.1、原料准备 (4)

3．2、板坯加热及设备组成 (5)

3.3、粗轧机组 (5)

3.4、精轧机组 (6)

3.5、调宽 (7)

4宝钢1780热轧 (7)

4.1、1780热轧的生产设备及工艺流程 (7)

4.2、工艺流程图 (7)

4.3、1780热轧的产品、规格及生产能力 (7)

5热连轧钢的发展 (8)

5.1热连轧钢的技术发展 (8)

5.2热带钢装备技术进步 (9)

5.3温度控制技术进步 (9)

6现代热连轧机的发展趋势和特点 (10)

结束语 (10)

参考文献： (12)

1、前言

自1924年第一台带钢热连轧轧机投产以来，连扎带钢生产技术得到很大的