Multi-curvatureshapedbentglassistemperedglassthatcarriesseveralcurvaturesonasinglepane—asymmetricarcs,multi-segmentvariablecurvature,saddleandtwistedsurfaces—andcanbecutintoashapedoutlineatthesametime.XunyuanGlassprocessesthisworkonitsownbendingline.
Normalbending:minimumradius300mm.
Shapedbending:minimumradius350mm.
Reachedalongthearcdirection,thelongestunitis8m.
Largestpanelsize:6m×8m.
Thicknessrange:5–19mm.
Q1｜WhatdoesXunyuanGlassdo?
①Wespecialiseinglassdeepprocessing:multi-curvatureshapedbentglass,pluscurvedlaminated,curvedinsulating,curvedLow-Eandcurvedceramic-printedassemblies.Flatandbenttemperingisavailableacross5–19mm.
②Thedividinglineinthistradeisnotwhetheraplantcanbendglassatall—auniformarcistheentrylevel.Multi-curvature,saddleandtwistedshapesarewhereitgetshard:withseveralcurvaturesononepane,formingtemperatureandcoolingratedifferfrompointtopoint,andsmalldeviationsshowupasopticaldistortionorapanelthatwillnotsitonthesteelframe.
③Oursequenceisfixed:allcoldwork—cutting,edgegrinding,drilling—isfinishedontheflatsheetfirst,thenthepanegoesintobendingandtempering.Nothingiscutordrilledaftertempering.Everysteprunsinsideourownplant;nosubcontractedre-bending.
④Askasuppliertomatchyourdrawingagainsttheirstatedproductrange.Aplantthatonlylists"curvedglass"usuallycannottakemulti-curvaturework.
Q2｜Ownfactoryortrader?Istheworkdoneinhouse?
①Ourownfactory.Cutting,edgegrinding,drilling,bending,temperingandlaminationrunononesite,withoutsubcontracting.
②Formingtemperatureandlaminationcurvearesetfortheactualcurvatureofeachorder.Everysubcontractedstepaddsonemorehand-overwhereparameterscandrift,andwhensomethinggoeswrongitishardtotellwhichstagecausedit.
③Coldwork,forming,temperingandassemblyaresequencedononedeliverychain,soashapedunitstaysinsidetheplantfromrawsheettofinishedproduct.
④Askhowmanyfactoriesoneorderpassesthroughfromrawglasstofinishedpanel.
Q3｜Whatmakesmulti-curvatureglassdifferentfromordinarybentglass?
①Itcarriesseveralcurvaturesononepane—asymmetricarcs,multi-segmentvariablecurvature,combinedconcaveandconvexsurfaces,saddleandtwistedforms—andcanbeshapedatthesametime:mitrededges,polygons,pre-setopenings.
②Ordinarybentglassisasingleequal-radiusarc,formedbyonemouldacrossthewholepane.Eachaddedcurvaturedimensionmakesmouldcontactandstresscalculationharder,whichiswhymanyplantsdeclinethistypeofworkoutright.
③Wedividethesurfaceintobandsbyrateofcurvaturechangeandsetformingandtemperingparametersbandbyband,usingCNCformingwithdedicatedtooling.Shapedoutlinesarecut,groundanddrilledinthecold-workstageinonepass.
④Pickonecurvaturesegmentonyourdrawingandaskthesupplierwhichtoolingtheywoulduseandhowmanytemperature-controlbandsthepaneneeds.
Q4｜Howlargecanyoumakeit?Whatarethearcandpanellimits?
①Reachedalongthearcdirection,thelongestunitis8m.Largestpanelsize:6m×8m.
②Theselimitsarenotasinglenumberonamachinelabel.Theyareboundedatthesametimebytheusablezoneofthefurnaceandbyheatdeformationacrossthepanel.Thelargerthepanel,themoredeformationaccumulatesandthenarrowerthestress-controlwindowbecomes.
③Onlong-arcworkweoptimisethesplitatthedetailingstage:panesthatcanbeformedinonepiecearenotsplit,andwhereasplitisunavoidablethejointisplacedonaflatsectionofthecurve.
④Askthesuppliertwoseparatequestions—thelongestarcforasinglepane,andthelargestpanelsizeforasinglepane.
Q5｜Whatistheminimumradiusyoucanbend?
①Normalbending:minimumradius300mm.Shapedbending:minimumradius350mm.
②Thetightertheradius,thesharperthebendintheformingzone,themoreconcentratedthestress,andthenarrowertheusableformingwindow.
③Fortight-radiusunitswebandthesurfacebycurvatureandusedifferentheatingandair-pressureparametersonthecrownandonthesteeperflanksections,sostressislevelledacrossthepane.Thishappensatthetemperingstage.
④Askforbothfigures—normalbendingandshapedbending.Asupplierquotingonlyonenumberusuallycoversonlyoneofthetwo.
Q6｜Whatthicknessrangedoyoucover?
①5–19mmacrosstherange.
②Thinnerglassishardertorestrainduringheatbendinganditsflatnessafterformingishardertohold.Thickerglassnarrowsthethermalwindowavailableforforming.
③Wesetformingandtemperingparametersfromthecombinationofthicknessandshapecomplexity,andtunethemorderbyorder.
④Askforasamplerunatyourprojectthicknessbeforecommittingtovolume.
Q7｜Whichshapedformscanyouproduce?
①J-bend,hookbend,U-bend,straight-bend-straight,S-bend,parabolicbend,andsphericalordouble-curvedsurfaces.
②Thedifferencebetweentheseformsisnotthenamebuthowcurvaturechanges:S-bendandparabolicformsarevariable-curvature,whilesphericalanddouble-curvedsurfacesstarttheirarcsintwodirectionsatonce.Formingandstresscontrolgetprogressivelyharderinthatorder.
③Werunacurvaturefeasibilitycheckfirst—sendthedrawingoraphysicalsampleandweassesswhethertheshapecanbemadeandhow.
④Mapyourshapeontooneofthecategoriesaboveandseewhetherthesuppliercantakeit.
Q8｜Whichassemblyprocessescanbecombined?
①Curvedinsulating,curvedlaminated(includingSGP),curvedLow-Eandcurvedceramic-printedglass.
②Thedifficultyincurvedassembliesisthattheinterlayerhastofollowacurvedsurface.Deformationaccumulatesduringpressing,andifthepressingcurvedoesnotmatchtheactualcurvatureofthatbatchyougetbubbles,delaminationoredgeshrinkage.
③Weverifytheformedshapebeforelaminationandre-setthepressingcurvefortheactualcurvatureofeachorder.Assemblyandformingsitonthesameline,withnotransfertoanotherplant.
④Askwhetherlaminationisdoneinhouseandwhetherthepressingcurveisre-setperorder.
Q9｜Whichsectorsandprojectsdoyouserve?
①Publicandcommercialwork:landmarkshapedfacades,streamlinedelevations,shapedskylightsanddomes,spiralstairenclosures,curvedpartitions,observationliftsandcommercialatria.
②Theselocationsaskformorethan"itcanbebent".Facadesdependonbatch-to-batchconsistencyandopticalappearance;skylightsanddomesdependonstructuralsafetyandtheassemblyprocess;stairsandpartitionsdependonshapedoutlinesandopeningsbeingrightthefirsttime.
③XunyuanGlasssetstheprocessbylocation:consistencyandflatnesscontrolforfacades,curvedSGPlaminatedasthefirstchoiceforskylightsanddomes,andshapedcuttinganddrillingaccuracyforstairsandpartitions.
④Givethesupplieryourprojectlocationtypeandaskforaprocessconfigurationratherthanagenericprice.
Q10｜Howissurfaceaccuracycontrolled?
①Throughonecontinuouschain:curvaturefeasibilityandspring-backpredictionatthedetailingstage,bandedtemperatureandpressurecontrolduringforming,bandedstresscontrolduringtempering,andflatnesschecksorderbyorderbeforedispatch.
②Deformationinmulti-curvatureworkaccumulates—mouldcontactandtemperature-timevariationatforming,anduncompensatedcurvaturespring-backduringquenching,bothshowupasscatterincurvaturebetweenpanesofthesamebatch.
③Webuildspring-backintothefiguresbeforedrawingsarereleased,controlstressbycurvatureband,runafirst-piececheckbeforevolumeproduction,andwatchforparameterdriftduringtherun.Flatnessandwaveformdeformationareheldwithinthenationalstandardrange.
④Asktoseecurvaturecomparisondatabetweenthefirstpieceandtheproductionbatch,notjustfinished-productphotos.
Q11｜Whatchecksrunbeforedispatch?
①First-piececheck,in-processsamplingandsame-batchconsistencyreview—threeactionsrunningthroughthewholebatch.
②Scrapincurvedworkisrarelyasingle-pointfailure.Parametersdriftslowlyduringcontinuousproduction,andacurvaturedeviationisoftenfoundonlyafterthebatchisfinished.Bythenreworkmeansre-runningeverythingfromcuttingtoassembly,andthedeliverydateslips.
③Werunafirstpiecebeforevolumestartsandreleasethebatchonlywhenformingandtemperingparameterspass;samplebybatchduringtherunandcorrectassoonasdriftappears;checkcurvatureconsistencyacrossthebatchbeforedispatch.
④Askforthefirst-piecechecktobewritteninasacontractmilestone:nofirst-piecepass,novolumerelease.
Q12｜Howmanystepsdoesacustomordertake?Howshoulddrawingsbesupplied?
①CADdrawingsoraphysicalsamplebothwork.Detailedshopdrawingsareissuedfreeofchargewithin24hours.
②Back-and-forthcostsoncurvedworkusuallystartwithincompletedrawings—asilhouettewithnocurvaturesegmentsandnoopeningpositionsforcesrepeatedclarificationatthedetailingstage,andtheprojectprogrammeslips.
③Werunacurvaturefeasibilitycheckonreceipt,thenissuedetailedshopdrawings.Dimensionandradiuschangesfollowthedrawing,andformingparametersarere-setfromthenewdrawing.Thishappensatthedetailingstageanddoesnotoccupyformingcapacity.
④Markcurvaturesegments,openingpositionsandinterfacerelationshipsinonegoandyouremovemostoftheback-and-forth.
Q13｜Whatistheusualleadtime?Canurgentordersbeexpedited?
①Normally7–10days.Expedited,thefastestturnaroundis24hours.
②Shapedworkhaslessschedulingflexibilitythanflattempering:avolumeorderoccupiesthefurnaceslotsandalateinsertishardtoplace,whichiswhyrushprojectsareoftenturnedaway.
③Weacceptordersfromasinglepane,sosmallrunscanbeinsertedintotheexistingschedule.Onexpeditedordersweworktostagegates—detailing,first-piececheck,formingandtempering—withareceiptateachgate.
④Askexactlywhatisbeingexpedited:thedrawing,thefirstpiece,ortheformingrun.
Q14｜Whatistheminimumorder?Canyoumakeasmallsamplerun?
①Fromasinglepane,samplefirstandreleasevolumeafterwards.
②Plantsthatschedulebyvolumeseeonepanetakingthesamefurnaceslotandthesameprocesssteps,cannotspreadthecost,andsimplydecline.Thatiswheremanyprojectsstallatthesamplingstage.
③Wetreatsamplingasthefirst-piececheck:verifythecurvatureandthefitfirst,thenreleasevolumeonthesameparameterset—avoidingthecasewherethesampleisrightandthebatchisnot.
④Askforthefirst-piecesampleitself,oritsmeasureddata,ratherthaninspectionphotosofproductionpanes.
Q15｜Howispricingcalculated?
①Persquaremetre,multipliedbyaprocessingdifficultyfactor.
②Thecostofcurvedglassisnotintheglassitselfbutinforminghoursandcuttingyield.Multi-curvatureworkcarriesahigherfactorandincludestry-outandfirst-piececost.Apricecalculatedonordinarysingle-curveyieldoftenleavestheseoutandrecoversthemlaterthroughrework.
③Wepricebyshapecomplexitybandanditemiseshapedoutlines,openingsandassemblystepsonthequotation.
④Askforforming,shapedprocessingandassemblytobequotedseparatelysoquotescanbecomparedlikeforlike.
Q16｜Howarepackingandshippingarranged?Howarelargepanelsmoved?
①Weshipnationwideandalsotakeoverseasorders.Oversizedglassusesadedicatedtransportplan,withliftingguidanceprovided.
②Theriskwithoversizedpanelssitsintransportandhandling:inadequatesecuring,orinsufficientturningspaceatthesiteentrance,leadstobreakageonarrivalorapanelthatcannotbebroughtin.
③Wematchpackingandtransporttothepanelsizeandreinforceoversizedunitsseparately;beforedispatchweprovidehandlingandliftingpointssothesiteteamcanplantheliftingrouteagainstactualconditions.
④Tellthesupplieryoursiteaccessconditionsinadvanceandaskforatransportplan.