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摘要I摘要根据任务书要求，设计年产60万吨小型棒材厂。按照车间设计的步骤，主要完成建厂经济依据论述、产品大纲制定、轧机比较及布置选择、孔型系统的选择及典型产品的孔型设计、速度制度和产量确定，力能参数的计算及校核、辅助设备的选取、金属平衡以及水电消耗计算等。设计中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，特别参考了唐钢棒材厂与八一棒材厂生产线参数，使本设计车间达到工艺合理、设备先进、留有进一步提升产品档次的现代棒材车间。棒材以定尺交货，横列式、半连续式、全连续式各种轧机都可以进行生产。平立交替的连轧棒材方式事故少，生产效率高，产量大。考虑生产时顺畅，自动化程度高、质量控制稳定，设计采用全线无扭连轧方式。产品规格为Φ12～32mm圆钢，Φ14～26mm螺纹钢。典型产品为Φ24的圆钢。关键词：车间设计；棒材连轧；孔型设计；高精度AbstractⅡIIAbstractAccordingtothetaskrequirement,anannualoutputof600,000tonsofsmallbarsfactoryisdesigned.Accordingtothedesignstepsoftheworkshop,Thefollowingaspectsareaccomplished,suchastheeconomicaccordanceofbuildingtheworkshop,thedistributionofoutput,millcomparisonandlayoutchosen,passsystemchosenandpassdesignofclassicproduction,velocitycomputingandoutputplanned,mechanicalcalculationandtest,auxiliaryequipmentchosen,metalbalanceandwaterandelectricityconsume,etc.Referringtothedomesticadvancedrollingtechnology,rollingequipment,passandauxiliaryequipmentchoosing,specially,referringtoproductionlineparametersofTangSteelandBayiSteel,thisensurethatthetechnologyisreasonableandequipmentisadvancedandthereisspacetoproducehigh-profitrod.Barissalebysizing.Allkindsofrollingmillcanproducebar,suchasopen-trainmill,Bartolengthdelivery,bar-style,semi-continuoustrainandthecontinuoustrain.Thepatternofcontinuousrollingbarinhorizontalandverticalloopierhasthespecialtyofthefeweraccident,highlyefficientandhighoutput.Inconsideringofthesuccessfullyproducing,highleverautomation,andstablequalitycontrolling,thenotwistcontinuousrollingisadoptedinthispaper.TheproductionsizerangeisfromΦ12toΦ32mmbarandfromΦ14toΦ26mmrebar.TheclassicproductionisΦ24mmbar.Keywords:workshopdesign;continuousrollingbar;passdesign;highprecisio目录III目录摘要...........................................................................................................................IAbstract.........................................................................................................................II引言............................................................................................................................1第一章文献综述..........................................................................................................21.1棒材的发展概况.............................................................................................21.2棒材的种类和用途..........................................................................................41.3棒材的生产工艺..............................................................................................51.3.1棒材的生产特点..................................................................................51.3.2坯料......................................................................................................51.3.3加热......................................................................................................61.3.5冷却和精整..........................................................................................61.4小型棒材轧机的低温轧制.............................................................................71.5建厂依据.........................................................................................................71.6厂址的选择.....................................................................................................8第二章产品大纲及坯料选择......................................................................................92.1产品大纲的确定.............................................................................................92.1.1编制产品大纲的原则..........................................................................92.1.2产品方案的主要内容..........................................................................92.1.3产品大纲........................................................................................92.2坯料选择.........................................................................................................92.2.1连铸坯的特点.......................................................................................92.2.2钢坯的特点.........................................................................................102.2.3小钢锭的特点.....................................................................................102.3坯料选用时所考虑的因素.........................................................................112.3.1坯料形状尺寸....................................................................................112.3.2表面缺陷清理.....................................................................................122.3.3钢坯规格及允许偏差.........................................................................12第三章轧机的选择..................................................................................................133.1轧机型式对比与选择...................................................................................133.1.1开式机架............................................................................................133.1.2闭式机架............................................................................................133.1.3半闭口机架................................................................................