双面螺旋埋弧焊钢管的交流消磁

(),X,0(SAW),,,,,,,,,,,XS(1),,X,,,,GB/T9711.2APISpec5L(42)2001,,%,,,,,,11,(1),2B-H(ababa),om(b1),,mHm,,Hmv0,0v-Hc1,-Hc1v-Hm1(-Hm1=-Hm),-Hm1v0,0vHc1,Hc1vHm,mvb1,b1vc1,c1vm1,m1vb1,b1vc1,c1vm(c1,c10,m,m1b1,b1,),,,2B-H3427420047,mb2c2m2b2c2m,b1vb2,,,,,,B=nI2R(1);n;I;R23,350A,,,,,,,33s,,,3,,1mT,X(4),GB/T9711.2APISpec5L(42),,41..:,19922,..:,1982,,1964,,1989,:0917-3398727E2mail:[e-mail](:2004-01-20),,,,,,,,20022020,22005km,,,14%,30%,,,,(2004621)4420047LiningPlastictoSupplyingPipeandPipeFittingsQianLezhong(21)Abstract:Itintroducesthestructure,performance,material,ap2pliancescopeandimplementingstandardofliningplastictosup2plyingwaterpipeandfittings.Italsoanalysescharacteristicsofliningplasticcompoundpipeandliningstainlesssteelpipe,putforwardliningpolyethyleneorthinnerwall2thicknessstainlesssteelpipetoinsidewallofoutsidelayerpipe,thusitnotonlygreatlyenhancethepipeanti2corrosionpropertyduringtransmit2tingwater,hotwaterandcoalgas,butalsoretaintheadvantagesofgalvanizedpipe,suchassealingbetterwiththreadconnection,highphysicalstressandlowprice.Itwillbeidealsubstitutionfortransmittingwaterandgaspipe.Keywords:liningplasticsupplyingwatercompoundpipepipefittingsFlexibleControlTechniqueofDigital2controlFlyingSawSystemTongZihui(26)Abstract:Thispaperintroducesflexiblecontrolprincipleofdigi2talcontrolflyingsaw,analysesitsflexiblecontroltechniqueinallmovesectionofonesawperiod.InDF(PLC)-Itypecontrolsys2tem,firstlypositivestart2upacceleratedspeedwillbeconductedauto2calculateandauto2adjustedinsidepositionloop.Inordertoprotectdrivingsystemandmechanicandavoidover2acceleratedspeed,acceleratedspeedregulationloopisattachedtobehindpo2sitionloop,butnotaltercurveslopeoutputtedbypositionloop.Adoptingsectionalacceleratedspeedlinerincreaseachievein2flexionsmoothtransitionofsawlineracceleratedspeed,toreduceimpactvalue.Usingspecialdesignflexiblecontroltechnique,ef2fectivelyreducesawphysicalimpactandabrasion.Itisaverypracticalcontroltechniqueforfrequentstart2upandstopofdigitalcontrolflyingsaw.Keywords:digitalcontrolflyingsawflexiblecontrolcontrolprincipleOver2evaporatingCoolingElectricTubeandItsApplicationinHigh2frequencyHeatFieldDaiZhengwu(29)Abstract:Theover-evaporatingcoolingelectronictubeadoptanodiccoolingtechnology.Itsefficiencyis10timesthatofcom2monwatercoolingelectronictube.Italsomakesbriefintroductiontoover2evaporatingcoolingelectronictubeappliedinhigh2fre2quencyweldedpipemachineindomesticandabroad.Keywords:electronictubeover2evaporatingcoolinghigh2fre2quencypowerweldedpipeapplicationUsingAUTOCAD2002DevelopCold2bendSectionalPipe2holeDesignSoftwareZouJunliang(33)Abstract:ItdescribesusingVISUALBASIC6.0matchedwithAUTOCAD2002connection,andadoptingVBprogramtodealwithAUTOCAD2002figures.Itintroducethreefoundationalfunctionsofself2developingpin2holedesignsoftware(KongXing2Tools1.0).Keywords:cold2bendsectionalsteelpin2holedesignVISU2ALBASICAUTOCAD2002connectionApplicationofWeldedPipeRollerCAD/CAPPTechnologyLiHui(35)Abstract:Thequalityofrollerdirectlyeffectweldedpipequali2ty.Withtheseriessizeofweldedpipedevelopment,itputforwardhigherrequirementsforrollerdesign.OnbasisofCADandCAPP,weresearchanddeveloponesetofdesignprogramsystemforweldedpiperoller.Thispaperintroduceusfunctionandpa2rameterdesignmethodofprogramsystem.Withitsapplication,itcangreatlylightenmanpowerswork.Andenhancedesigneffi2ciencyandquality.Keywords:rollerCAD/CAPPparametersdesignweldedpipeCharacteristicofSteelPipeLiningPlasticandItsFamiliarQualityProblemsSettlementLiuHuiyi(37)Abstract:Theprocedureofsteelpipeliningplasticistoplasticpipeextrudeoutandcoatingbondonitsoutsidesurface,andtheninsertintosteelpipeinside.Throughheating,pressuringandcoolingsizingprocess,theplasticpipeisintegratedwithsteelpipefirmly.Itintroduceequipmentproperties,procedureparame2tersandqualitystandards,aswellasfamiliarqualityproblemsduringproduction.Itallgivessolvingmethodsfortheseprob2lems.Keywords:steelpipeliningplasticprocedureofplasticpipestandardqualitydefectssolvingmethodImproveServiceFlyingSawCutAccuracyZhangYuhua,ChaiXiaoyan(40)Abstract:Itdescribetwoapproachesforimprovingserviceflyingsawcutaccuracy.Theyareimprovingattendantsystemoperationmodelandimprovingorganofflyingsawdriving.Afterimproved,thecutaccuracyofserviceflyingsawishigherthaninternationalcustomstandards.Atpresent,itiswidelyappliedinactualpro2duction.Keywords:serviceflyingsawsawcutaccuracyapproachorganIntercourseRemovingMagnetismofSSAWPipeTangYanlin,WengJihong(43)Abstract:Itintroduceusprincipleforintercourseremovingmag2netismandsystemstructureofSSAWpipe.Itcaneffectivelyre2movesteelpiperesidualmagnetism,whichcaneffectx-rayin2spectiononsteelpipe.Thus,itcanreachthestandardrequire2mentforpipeendsresidualmagnetism.Keywords:SAWweldedpipeintercourseremovingmagnetismresidualmagnetismDesignforsway2stylehydraulicedgesmashingmachineZhangXinfang(45)Abstract:ItisveryimportanttomillstripedgesduringSSAWpipeproduction,whichcandirectlyeffectworklinecontinuousproduction.Itanalyzedon-lineshearingstyleanddifferentposi2tiondisposalfeature,whichisusedinmostpipem