Coldgalvanizedpaintandhigh-frequencystraightseamweldedpipesareanticorrosiveproductswithhighzinccontent,andtheanticorrosiveperformanceofthetwoisalsooutstanding.Withtheirownproductperformanceadvantages,theyhavegraduallydevelopedintomainstreamindustrialanticorrosiveproductsonthemarkettoday.Whatarethesimilaritiesanddifferencesbetweenthetwo,thenfollowtheeditortounderstandthesimilaritiesanddifferencesbetweenthetwo. 1.Differentzinc Coldgalvanizedpaint:thezinccontentofthedryzincofthecoldgalvanizedpaintreaches96% Highfrequencystraightseamweldedpipe:nationalstandardzinccontenthas60%,70%,80%threestandards Bothareelectrochemicalanticorrosivecoatings,andbothcanprovideverygoodcathodicprotectioncharacteristics.Duetothedifferentzinccontent,theanticorrosiveeffectwillbedifferent. 2,differentingredients Coldgalvanizedpaint:Coldgalvanizedpaintzincisproducedbyhigh-purityzincpowder,solvent,auxiliaryagentandotherspecialcoatingtechnology,whichbelongstoone-componentpaint. High-frequencystraightseamweldedpipe:atwo-componentself-dryingcoatingconsistingofmediummolecularepoxyresin,specialresin,zincpowder,additives,lead-freesolvent,andaminecuringagent. Thereisabigdifferenceinthecompositionofthetwo.Fromtheperspectiveofuse,coldgalvanizedpaintissimpler,butfromtheperspectiveofmarketutilization,thelatterisbetter. 3.Differentconstruction Coldgalvanizedpaint:brush,roll,spray.Therecommendedfilmthicknessis80μm-100μm. High-frequencystraightseamweldedpipe:atwo-componentself-dryingpaintconsistingofmedium-molecularepoxyresin,specialresin,zincpowder,auxiliaries,andlead-freesolvents.. Bothneedtodegreaseandrustthesteelsurface,andsandblastthesurfacetoachieveasurfaceroughnessof35μm-75μm.Becausebotharerichinzinc,theymustbeinfullcontactwiththesteelsurfacetoplaytheroleofzinctoachieveBetterantisepticeffect. 4,differentsupporting Coldgalvanizedpaint:coldgalvanizedpaint+coldgalvanizedsealant Highfrequencystraightseamweldedpipe:highfrequencystraightseamweldedpipe+epoxymicaironintermediatepaint+fluorocarbonpaint\highfrequencystraightseamweldedpipe\polysiloxanetopcoat 5.Differentuses Coldgalvanizedpaintisanexcellentcoatingtoreplacethehotgalvanizingprocess,whichissuitablefortheprotectionofpowerfacilities,suchaspowerplants,substations,andelectricaltowers. Highfrequencystraightseamweldedpipeiswidelyusedinmetallurgical,container,varioustypesoftransportationvehicles,engineeringmachinerysteelplatepretreatmentshotblasting,especiallysuitableforrustpreventionofsteelstructures,isaverygoodrustmaintenanceprimer.

1.WhenthepressureP1ofthetapwaterislowerthanthesetpressureP2requiredbytheuser,themicrocomputerwillautomaticallycontrolthesoftstartofthevariablefrequencypump.UntiltheactualpressureP=P2ofthepipeline,themicrocomputerwillcontrolthevariablefrequencypumptorunataconstantspeed.ThehigherthetapwaterpressureP1,thelowerthespeedofthefrequencyconversionpump,andthelowerthetapwaterpressureP1,thehigherthespeedofthefrequencyconversionpump.WhenthepressureoftapwaterP1=P2,thevariablefrequencypumpstopsworking,notonlymakingfulluseoftheoriginalpressureoftapwater,butalsoensuringthattheuserneedsaconstantpressure. 2.Thewaterinletofthevariablefrequencypumpwantstobeconnectedtothesteadyflowcompensator.Themicrocomputerdetectsthepressureinthesteadyflowcompensatoratalltimes.Thevacuumsuppressoriscontrolledtostabilizethepressureofthesteadyflowcompensatorandthetapwatertopreventnegativepressure.Soastoensurethenormalwatersupplyofthewaterpipenetwork. 3.Tapwaterstops,theequipmentautomaticallyshutsdown,tapwaterstarts,andpowerisrestoredtothetapwateratnormalpressure.Whenthetapwatervoltageislowerthanthesetvalue,themicrocomputerwillautomaticallycontrolthefrequencyconversionsoft-startoperationofthepump.Whenthepressureofthetapwaterdropstoacertainlimit,thesolenoidvalveisclosed,andthedevicedirectlytakeswaterfromtheflowincreaser.Thelowerthepressureofthetapwater,thehigherthespeedofthepump,andconversely,thehigherthepressureofthetapwater,thelowerthespeedofthepump.Whenthepressureoftapwaterisgreaterthanorequaltotheroofpressure,thevariablefrequencypumpstopsworking,makingfulluseoftheoriginalpressureofthetapwater,andensuringtheuser'sconstantwaterpressure.

1.First,theelongationofthepipeislongerthanthatofmanualwelding.Generally,4-5mmisbetter.Ifitistoolong,itwillreducetheweldpenetrationandtheweldisnotbeautiful;ifitistooshort,itwillcauseundercutsanddamagetothenozzle.Andotherdefects. 2.Secondly,thecleanlinessofthepipeandtubesheetofthepipeweldingequipmentishigher.Thetubesheetisbestcleanedwithlyeororganicsolution. 3.Theappearanceoftheweldingworkpieceisnotclean,andairholeswillappearduringwelding,whichwillaffecttheweldingquality. 4.Thepipebevelshouldnotbetoolarge,thegeneralchamferis≤2mm,andthebestis1mm.Ifthebevelistoolarge,itiseasytoburnthepipe,andifitistoosmall,itwillcauseinsufficientpenetration.    YangzhouDonglunIndustrialEquipmentCo.,Ltd.isaprofessionalmanufacturerspecializingintheproductionofvariousspecificationsofhigh-frequencyweldedpipeequipment,slittingunits,Kaipingunits,andcoldrollingmetallurgyequipment.

Thebuttweldingprocessofthepipeweldingunitincludesunwinding,pinching,straightening,shearing,guiding,buttwelding,looper,butt,etc.Theprocesscanbesaidtobecomplicatedandchangeable.Ourcompanywilltellyouaboutthepipeweldingequipmentfirst.Thefirstthreestepsofthebuttweldingprocess: 1.Afterthecoilisproperlypositioned,theleftandrightconeheadsoftheunwindercanbeinsertedintothesteelcoilandrotatedatthesametime,andthebeltheadissenttotheniproller.Insitu. 2.Inordertoallowthespringsteelbelttobeaccuratelycentered,theunwindercanmoveasawholeaxially+150mmbeforerunning.Aftertheunwinderisstarted,thestrippassesthepinchrollertothelevelerequippedwithadustremovaldevice. 3.Thestraightenedspringsteelstripusesaslidinghydraulicsheartocuttheheadandtailofthestrip.Inaspecialaggregateboxontheoutside).YangzhouDonglunIndustrialEquipmentCo.,Ltd.isaprofessionalmanufacturerspecializingintheproductionofvariousspecificationsofhigh-frequencyweldedpipeequipment,slittingunits,Kaipingunits,andcoldrollingmetallurgyequipment.

Thelevelingmachine'sroleinthepipeweldingunitistocorrect,shape,etc.Itwillnormallybeusedintheearlystageoftheproductionofthepipeweldingunit.Therearefiveorthreetypesofstriplevelersrecommendedforcold-formedsteel:roller,seven-roll,andnine-roll.Mostoftheopen-rolledcold-formedsteelisafive-rollertype,andtheclosed-endcold-formedsteelismostlyaseven-rollertype.Five-orseven-rollerlevelingmachinesarenormallyusedonsmallandmedium-sizedpipeweldingunits.Somepipeweldingunitsusingthinsteelstripscanbeprovidedwithoutlevelingmachines.Canalsoquicklytransportthesteelbelttothelooperforstorage.Ofcourse,theelasticandplasticstriplevelerthatisrepeatedlysubjectedtorollingisallrollertype.Thestripisleveledbybendingbetweenthetworowsofrollersoftherollerleveler.Themorethenumberofrepeatedbendingcycles,themorethelevelingprocesswillThesmootheritis,thehigherthelevelingquality.Thelevelingmachineisstillabitcomplicatedtooperate.Whenusingit,youmayencountersuchproblemsorproblems.Inthiscase,whatadjustmentoperationsdoweneedtodo:常见Whentherollersofcommonlevelingmachinesareworn,thatis,whenthepressureisstilltoohigh,therollersmustbechanged.Thisisoftenencountered!时Whentheunevennessiswavyatthesametime,weneedtoimmediatelyadjustthepressureonthearchwayandincreasethepressureontheentireupperroller.Ofcourse,whenadjusting,wemustpayattentiontosafety!Thebackendoftheflatteningmachinecomingoutofthesteelbeltisbentdownbecausethepositionofthelowerrollerattheexitendistoolow,whichcanbeproperlyraised;Theendoftheleveler'ssteelbeltisbentupwardbecausethepressureoftheupperrolleristoolarge,andthelowerrolleroftheoutletcanbeadjustedtoreducethepressure;Afterusingthelevelerforalongtime,thesteelbeltwillhavedefectssuchasfolding,twisting,curling,andlargesicklebends.Whenthelevelerisstuck,itwillbenecessarytooperatethehydrauliccylindertolifttheupperarchway.Itisrecommendedtocorrectthedefect.Afterpassing,theupperarchwayispressed,sothatitcanbecutoffunderthedefectivesteelstrip.Thelevelercannotpassthroughtwolayersofsteelstrip.YangzhouDonglunIndustrialEquipmentCo.,Ltd.isaprofessionalmanufacturerspecializingintheproductionofvariousspecificationsofhigh-frequencyweldedpipeequipment,slittingunits,Kaipingunits,andcoldrollingmetallurgyequipment.Usersarewelcometocometoconsult.

Consumptionoilcasingcanbeweldedintwoways:hot-rolledseamlesssteelpipeandweldedpipeunit.Becausethereisaweldingseamintheoilcasingusedforwelding,itisthekeyofconsumptiontodealwiththematchingofthestrengthandtoughnessofthebasemetalandtheweldingseam,thegrayspotoftheweldingseam,andthecorrosionoftheweldingseam.  TheperformancecharacteristicsofthepipeweldingmachinearethatthemoldisprocessedbyaCNCsystem,whichiswear-resistantandhighlyaccurate.Thesquaretubehasaflatmoldingsurfaceandasharpangle.Thepolishedsurfacecanreachthemirrorsurface,andtheroundnessoftheshapeandpositiontoleranceiswithin5mm;thediagonalofthesquaretubedoesnotexceed±0.5mm.  Theconsumptionoilcasingoftheweldedpipeunitisaffectedbythetoughnessofthebasemetal,thechemicalcompositionofthebasemetalandtheweldingprocess.WhentheC,S,P,andCrelementsintherawstriparereduced,thetoughnessoftheweldcanbeimproved;whenthebrightlinewidth,streamlineangleandthecontentofnon-metallicinclusionsintheweldingprocessarecontrolled,Itcansignificantlyimprovethetoughnessoftheweld.Inaddition,thecontrolledcoolingoftheweldedpipeafterreducingthethermaltensioncanimprovethetoughnessoftheweldseamoftheweldingoilcasingandotherareasofthepipebody.  Weldedpipecanusethreekindsofhardnesstestmethods:cloth,LuoandWei,tomeasureHB,HRB(orHRC)andHVhardnessvalue,onlyoneofthethreehardnessvalues​​canbemeasured.Thecompany'snewlydevelopedportableappearanceRockwellhardnesstesterandpipeRockwellhardnesstestercanstopfastandaccuratehardnesstesting,makingitdifficulttosolveproblemsthatweredifficulttohandleinthepastinChina.