H型钢轧制工艺的发展

H1H、、、、、、、、、、、、、。H1902H。,H。2050H。20502050。H20602070H2080H2080H。19988HH。H1010、、H2007、H2008。10H19983t20081200t。H。H。2HH。2.1H。(BD)、(Ur)(E),(Uf),BD-UrE-Uf。、、,。1。2.2H2070,,HH,。、,。17。、H7～15。2.3X－X,、,,,Ur-E-Ur-E-Uf。,1H300400HX-HMPSH。HMPS。H※※1720101。2。1-3-1,,,3。,1-4,,,,,。4。X－XX。H。2.4X-H2.4.12080X-HH。,“H”。,X－H,(X),(H)。H。,,。。、、、“X-H”、。、、、,H。X-H5X-H6。2.4.2X－H。X－HHHH。2.5MPSMulti-PurposeSectionMPS。302077mm~180mm50mm~77mm。H。7。6805103054005112076X-H31-3-1241-45X-H※※18／H-V。HVH-VH-V-H-V-H。HV8。H-VVH。l234、、5、67。H-VHMPSMulti-PurposeSection12345、30%。30~50。2.6UEUE。9。H。33.1HHH10%～30％H、10％。3.2H、、。HH。3.3X－HH。H、H。3.4MPSMulti-PurposeSectionHH-V。MPSH。3.5UE。2009－11－5[1].HH[J].200212(4):1~3.[2].H[J].20071055-56.[3].[J].2005,(1):2004。UUEE9UEHV8HV※※H19hardnessandgoodcorrosionandabrasionresistancewith2~3timeslongerservicelife.KeyWords:profile,coldrolling,tensilestraightening,screenmeshDevelopmentofH-beamRollingProcessTanJianAbstract:ThepaperintroducesthedevelopmentofH-beamrollingprocessanditsvariousrollingprocesseswithX-HandMPSrollingprocessesasfocusandmakescomparisonofadvantagesanddisadvantagesa－mongtherollingprocesses.TheauthorproposestheconceptthatnearlyfinalcontinuouscastbilletandMPSrollingprocesscanbepriorityofthenewlybuiltHsteelproductionline.KeyWords:H-beam,rollingprocess,developmentprocessDesignofGasPeripheralPipeworkforTiantie450m3BFYouYawei,ZhangXiaoliAbstract:Theauthors,basingonthepracticaldesignexampleofgasperipheralpipeworkforTiantie450m3BF,discussfromperspectivesoflayingthermalcom－pensatorandsupportforgaspipelineandputforwardtheprocessrequirementofproperlyenlargingthefixedstanddistance,usingsemi-articulatedstandandrea－sonablychoosingcompensatoranditsmaterial.Theabovedesigncaneffectivelysaveinvestmentandreducelatermaintenanceexpense.KeyWords:gas,pipelinenetwork,thermallengthex－pansion,compensation,stand,designDiagnosisandAnalysisonDummyBarSinkFailureatSlabCasterShiJialian,HuangBaoxinAbstract:Theproductionstabilityisseriouslyaffectedduetothesinkproblemfortherepaireddummybarataslabcasterofonesteel-makingplant.Theaffectingfac－torsfordummybarsinkarefiguredoutfromthedesign,repairqualityandothersidesofthedummybarbyon-sitediagnosisandfailureanalysis.Threeimprovementmeasuresareproposed.Aftermodification,thedummybarlifetimedoublestheoriginaland137,500RMBmaintenanceexpenseissavedannually.KeyWords:slabcaster,dummybar,sink,Htypelink,failure,improvementParameterDeterminationforLevelerModificationatRollTypePlateRollingMillFanYonghuiAbstract:Modificationisperformedinordertoelimi－natethefrequentbreakagefailureatthejournalofuni－versalcouplingandrollat2ndand3rdlevelingrollsforthelevelerofrolltypeplaterollingmill.Underthecon－ditionofreducingcostandfullyutilizingtheoriginale－quipment,thebasicparametersandforceenergyparam－etersarerecalculatedandoptimizedaccordingtolevel－ingprinciple.Aftermodification,noproblemoccursatthelevelerwithinoneproductioncycleandtheleveledproductsmeetqualityrequirement.Modificationcapitalissavedandsatisfactoryresultsareachieved.KeyWords:leveler,rollpitch,rolldiameter,levelingforce,torque,modificationModificationofBreathingSystemforTipplerHy－draulicStationZhangLiangAbstract:ThetipplerhydraulicstationatTiantieCok－ingSubsidiarywasequippedwithoil-airmixingtypebreathingsystem,themodeofwhichaffectedthereli－ablerunningoftheequipment.Therefore,thesystemismodifiedintooil-airseparatingtype.Oilcleanlinessisensuredandproblemssuchashydrauliccylindernotworkingstably,oilagingandoilandairsprayingoutfromdischargecheckvalvesimultaneouslyduetohighpressureatoiltankarebasicallysolved.Thus,equip－mentreliabilityisraisedandmaintenancecostforthetipplerislowered.KeyWords:tippler,breathingsystem,oil-airmixingtype,oil-airseparatingtypeChoiceofSeamlessPipeStraightenEquipmentWangZhiping,LiuHuanli,WangLifangAbstract:Thepaperintroducesthecommonstraightenequipmentforpipeproduction,i.e.,pressurestraightenerandcrossrollstraightener,analyzestheworkingprinci－pleandmainparametersforthetwokindsofstraighten－ersandthroughcomparingtheirdifferencesatstraightenaccuracyandproductionefficiencyputsforwardthe49