年产70万吨棒材车间工艺设计

河北联合大学轻工学院COLLEGEOFLIGHTINDUSTRY,HEBEIUNITEDUNIVERSITY毕业设计说明书设计题目：年产70万吨棒材车间工艺设计学生姓名：学号：专业班级：学部：材料化工部指导教师：2012年05月20日摘要I摘要此次设计年产量70万吨，品种为圆钢和螺纹钢的小型棒材厂，其规格分别为Φ18～60mm圆钢，Φ12～50mm螺纹钢，在此选择Φ22的螺纹钢为典型产品。本车间设计的主要依据是现代棒材生产工艺过程的理论，参阅了国内有关棒材轧机的先进工艺、轧机的装备、技术、孔型系统及一些辅助设备的论述，并参照承钢棒材厂，取一部分技术参数而设计了此车间。此设计说明书以设计任务书出发，首先论述了建厂的必要性和可能性，然后按照车间设计的步骤进行设计，主要是产品大纲的制定、轧机的选择、孔型系统的选择及典型产品的孔型设计、力能参数的计算及校核、辅助设备的选取等。此外，本文附有轧制图表、电机负荷图、孔型图、配辊图及车间平面图，以便参考。关键词:棒材轧机；设计方案；孔型设计；轧机形式；技术参数AbstractIIABSTRACTThispaperdesignsasmallbarsworkshoptoproduceabout700,000tonsroundbarsandrebars.Andtheirdiameteris18to60mmor12to50mm.Thepaperchooses22mmrebarastypicalproduce.Thepaperisbasedonthetheoryofproductionprocessaboutmodernbar,andreferstodomesticadvancedtechnicsofbarmillanddiscussionaboutequipmentofrollingmill,technology,passsystem,auxiliaryequipmentandsoon.Moreover,thepaperconsultsthebarworkshopinsteelrollingmillofChengde,andadoptssometechnicalparameters.Thepaperproceedsfromdesignassignmentbook.First,itstudiesthenecessityandfeasibilityofdesigningthisworkshop,thendesignstheworkshopaccordingtoelementaryprocess,whichmainlyincludesframingproductoutline,selectingrollingmill,selectingpasssystem,computingmechanicsparametersandcheckingthem,selectingauxiliaryequipmentandsoon.Inaddition,thereareseveraldesigncharts:rollingprogram,loaddiagramofrollingtarget,passsystem,passpositing,planviewofplantlayout.Allofthesegraphswillhelpyouunderstandthedesignconsiderationanddesignconceptbetter.Keyword:barmill,designscheme,passsystem,millmodel,mechanicsparameters.目录III目录摘要..............................................................................................................................................IABSTRACT.....................................................................................................................................II引言.............................................................................................................................................III第1章建厂的经济技术依据.........................................................................................................11.1建厂分析............................................................................................................................11.1.1建厂的必要性........................................................................................................11.1.2建厂的可能性........................................................................................................11.2厂址选择.........................................................................................................................2第2章产品大纲及坯料选择.........................................................................................................32.1产品大纲的确定...............................................................................................................32.1.1编制产品大纲的原则...........................................................................................32.1.2产品方案的主要内容...........................................................................................32.1.3产品大纲...............................................................................................................32.2坯料选择...........................................................................................................................42.2.1连铸坯的特点........................................................................................................52.2.2钢坯的特点............................................................................................................52.2.3小钢锭的特点..........................................................................................................52.3坯料选用时所考虑的因素..............................................................................................62.3.1坯料形状尺寸.........................................................................................................62.3.2表面缺陷清理.............................................................................................................72.3.3钢坯规格及允许偏差............................................................................................8第3章轧机的选择.........................................................................................................................93.1轧机型式对比与选择........................................................................................................93.1.1开式机架.................................................................................................................93.1.2闭式机架.................................................................................................................93.1.3半闭口机架..............................................................................................................93.1.4短应力线轧机.......................................................................................................103.1.5平立可转换轧机...................................................................................................113.2轧机布置选择比较.................................................................