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辽宁科技大学本科生毕业设计（论文）第I页年产420万吨热轧带钢车间设计摘要本设计说明书是参照鞍钢1780热轧带钢生产线设计的年产量为420万吨的热轧带钢厂。典型产品为16MnR，产品厚度为2.5mm，宽度为1520mm。整个设计说明书包括绪论、正文和专题三部分。第一部分为绪论，介绍了热轧带钢的发展状况以及整个设计所应完成的内容。第二部分为正文（从第2章到第9章）正文说明整个设计的总体方案，主要包括产品方案和生产方案的制定，金属平衡和工艺流程的制定、生产设备的选择、工艺参数计算、轧制力能参数校核。设计的第三部分为专题部分，简单介绍了关于高铁重轨的性能特点和性能要求，热处理的作用，热处理方法的分类、各种方法的优缺点，存在什么问题，以及重轨热处理技术的发展方向。另外，绘制了一张车间平面布置图。整个设计理论联系实际，设计了技术先进，经济效益大的热轧带钢生产线。关键词：热轧带钢；工艺设计；高铁重轨；热处理辽宁科技大学本科生毕业设计（论文）第II页AbstractThisspecificationreferstoanshanSteel’s1780striplinedesignfortheproductionofhotrollingstripsteelfactory420milliontons.Typicalproductsfor16MnR,productsfor2.5mmthicknessandwidthfor1520mm.Thedesignmanualincludesthreeparts:introduction,textandtopic.Thefirstpartisintroduction,introducesthedevelopmentstatusofstripandwholedesignshouldcompletecontent.Thesecondpart(fromchapter2texttochapter9)isthetext.Thebodyofthewholedesignoftheoverallprogramdescription,includingproductandproductionplanformulation,metalbalanceandprocess,productionequipment,processparametercalculation,rollingforce.Thethirdpartofthedesignfortheprojectssection,introducedthecharacteristicsandperformancerequireentsofGaoTieChongrail.Italsoinducestheheattreatment,heattreatmentmethodsoffunctionofclassification,theadvantages,disadvantagesofvariousmethods,theexistingproblems,andwhattheheavyrailheattreatmenttechnologydevelopmentdirection.Inaddition,drawaworkshoplayout.Thewholedesignlinkestheoryandpracticetogether.Italsodesignstheadvancedtechnologyandeconomicbenefitofstripline.Keywords:hotrollingstripsteel;high-speedrailwayrails;heattreatment辽宁科技大学本科生毕业设计（论文）第III页III目录1文献综述............................................................11.1热轧带钢发展历史......................................................................................................11.2热轧带钢的种类及用途..............................................................................................21.2.1热轧普通带钢.....................................................................................................21.2.2热轧优质带钢.....................................................................................................31.3热轧带钢生产工艺......................................................................................................41.4几种新技术简介..........................................................................................................51.4.1中间坯保温技术和边部感应加热技术............................................................51.4.2组织性能控制与铁素体区轧制新技术............................................................61.4.3自由程序轧制技术............................................................................................71.5热轧带钢发展中孕育的问题.......................................................................................71.5.1热轧工艺润滑技术问题....................................................................................71.5.2热轧过程中产生氧化铁皮的问题....................................................................81.6小结..............................................................................................................................92产品方案与金属平衡.................................................102.1产品方案的确定.........................................................................................................102.1.1热轧产品品种及产品钢号标准......................................................................102.1.2产品品种规格及代表尺寸..............................................................................112.1.3年计划产量及所占比例..................................................................................122.2金属平衡.....................................................................................................................132.3原料的选择................................................................................................................142.3.1原料种类及规格..............................................................................................142.3.2板坯技术条件..................................................................................................142.3.3年需坯数量......................................................................................................153轧制工艺过程及轧制制度的制定.......................................173.1生产工艺流程.............................................................................................................173.1.1典型产品生产工艺流程示意图......................................................................173.1.2生产工艺流程简介..........................................................................................183.2轧制制度的制定.........................................................................................................193.2.1加热制度..........................................................................................................193.2.2压下制度..........................................................................................................213.2.3速度制度..........................................................................................................243.2.4温度制度..........................................................................................................