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1、毕业设计说明书设计题目：年产35万吨硬线线材车间工艺设计目录摘要根据设计任务要求，进行年产35万吨硬线车间设计。设计参考众多国内外先进的线材生产厂，由任务书产量要求，选择高速线材生产方式。设计内容包括建厂经济依据、产品大纲分配、原料选择、出口速度选择、道次选择、轧机比较及选择、孔型系统设计、速度计算、温降计算、力能计算、轧辊校核、斯太尔摩风冷线等辅助设备选择等。为保证高速下顺利轧制，全线为平立交替布置，轧件无扭运行，尽可能减少事故隐患。粗中轧机采用高刚度二辊短应力线轧机，预精轧机前两架短应力线轧机，后四架采用悬臂式轧机，这样可以安
2、装高硬度耐磨碳化钨辊环，延长轧辊孔型寿命，保证最终产品精度。精轧机组采用10架方案，皆为超重V型悬臂成组传动轧机，出口安装4架减定径机，保证轧制速度高并且尺寸精确稳定。生产线预精轧后采用了长段高强度水冷，保证进精轧轧件温度较低。精轧后的穿水冷却，保证吐丝机吐丝温度。产品按照德国DIN标准A级生产（Φ5.5±0.1㎜）。车间工艺与设备选择能够高精度生产Φ5.5硬线。关键词：硬线；短应线轧机；平立交替；超重V型无扭轧机；控制冷却目录ABSTRACTThistaskistodesignworkshopthatcanproduce350K
3、thardwire.Re-ferringtoanumberofdomesticandinternationaladvancedhardwirework-shopsandaccordingtothetaskrequirement,thehighspeedproducepatternischosen.Inthispaper,thefollowingaspectsarereferred,suchastheeconomicaccordance,thedistributionofoutput,thematerialchoose,rollin
4、gspeedatexitchoose,thenumberofpasses,themillcomparisionandchoose,passsystemdesign,rollingvelocitycomputing,thetemperatureandmechnicalcomputing,thestrengthenofrollertest,Stelmoraircoolingtableschoose,etc.Inordertosuccessfullyrollingharewireathighspeed,allmillontheprodu
5、celinesethorizon-talandverticallooper.Intherollingprocess,therollingpiecehasnotwist,thus,thehiddenaccidentcanbereduced.Roughandmiddlemillareheavy-rigidlytwo-rollershortstressthreadstands,astopre-finishingmillgroup,theformertwostandsareshortstressthread,thelaterfoursta
6、ndsarecantilever,whichareabletoinstallhighhardnessandwearlessnessrollcollarmadefromWCsothatthelifeofrollerpasscanbelonger,therefor,theprecisionofproduc-tioncanbesatisfied.Thefinishingmillgroupadopt10stands,whichallareoverweightV-typenotwistcantilevermillandusedentireg
7、roupdriving.Attheexitoffinishingmillgroup,thetwosizingdiameterstandsareequippedtoensurehigherrollingspeedandthestablesizepr-ecision.TherollingtechnologyislaiddownandequipmentareselectedsothathighprecisionΦ5.5hardwirecanbeproduced.Keywords:hardwire;shortstessthread;hor
8、izontalandverticallooper,overweightV-type;notwistcantilevermill;controllcooling.目录目录目录摘要IABSTRACTII引言-1-第1章绪论-2-1.1线材-3-1.1.
