贝卡钢帘线结构

。 SteelCordPacking SpoolsTyrecordiswoundonmetalspools   NOTEThearrowontheflangeindicatesthedirectionforunwindingthespool. BS40BS60BS80/17BS80/33 CartonsThetyrecordspoolsarepackedinawaterproofcartonstrappedtoapalletinunitsofapproximately1300kgnetmass.Thepalletismadeofwoodorplastic. DIMENSIONS:length:1080mmwidth:810mmheight:1200mmHANDSAMPLESCarefullypackedhandsamplesoftyrecordcanbeattachedtothecorrespondingunit.STORAGECONDITIONSAllunitsareprovidedwithdesiccantandahumidityindicator.Cartonscanbestoredforsixmonthsinsideawarehousewherethecombinationoftemperatureandhumiditydoesnotleadtocondensation.Itisrecommendedtoconditiontheunitsatambienttemperaturebeforetheyareopened. ORDERINGPROCEDUREInquiriesorordersoftyrecordmustspecify:–tyrecordconstruction–typeofcoating–typeofspool–totalquantity RETURNOFPACKINGAllpackingmaterialsaretobereturnedtotheBekaertplantoforigin.100emptyBS40spoolsperbox60emptyBS80spoolsperboxPlasticseperatorsmustbereturnedinadifferentbox SteelCordDefinition CordcomponentsFILAMENTORWIRE(1)Ametalfibreusedasanindividualelementinastrandorcord.Standardfilamentdiametersare0.15/0.175/0.20/0.22/0.25/0.27/0.28/0.30/0.35and0.38mm.STRAND(2)Agroupoffilamentscombinedtogethertoformaunitproductforfurtherprocessing.CORD(3)Aformedstructurecomposedoftwoormorefilamentswhenusedasanendproduct,oracombinationofstrandsorfilamentsandstrands.WRAP(4)Afilamentwoundhelicallyaroundasteelcord. PhysicalpropertiesDIAMETEROFCORDThediameterisdeterminedbycalculatingthearithmeticaverageofthemeasuredmaximumandminimumthicknessofthecord.Thediameterisexpressedinmillimetres.LENGTHOFLAY(1)Theaxialdistancerequiredtomakea360degreerevolutionofanyelementinastrandorinacordandexpressedinmillimetres.TherecommendedlengthsoflayarebasedontheISOrecommendationR-388-R20series,rangingfrom2.50mmto25.00mm.DIRECTIONOFLAY(2)Thehelicaldispositionofthecomponentsofastrandorcord.Thestrandorcordhasan‘S’orleft-handlayif,whenheldvertically,thespiralsaroundthecentralaxisofthestrandorcordconformindirectionofslopetothecentralportionoftheletter‘S’;and‘Z’orright-handlayifthespiralsconformindirectionofslopetothecentralportionoftheletter‘Z’. LINEARDENSITYThemassperunitlengthexpressedingramspermetre.ARCHEIGHT(1)Theamountofbendingofacordsamplelyingonaflatsurfaceagainsttwosupportswithaninterdistanceof300mm.RESIDUALTORSIONSThenumberofrevolutionsmadebyaspecificlengthofcordwhenoneendisheldinafixedpositionandtheotherallowedtoturnfreely,expressedinturnsper6metres.FLARE(2)Thespreadingofthefilamentendsorthestrandendsatthecutendofacord,expressedastheunravelledlengthinmillimetres. MechanicalpropertiesBREAKINGFORCEThemaximumforceorloadexpressedinNewtons,whichatestspecimencansupportduringatensiletestofloadingtobreak.TENSILESTRENGTHThebreakingloadofafilamentperunitofunstrainedcross-sectionalareaexpressedinNewtonspersquaremillimetreorMegapascals.ELONGATIONATBREAK(orbreakingelongation)Theincreaseinlengthofatestspecimen,whichresultsfromsubjectingittothebreakingforceinatensiletest,expressedasapercentageoftheinitiallengthofthespecimenmeasuredunderadefinedpre-tension.ELONGATIONBETWEENDEFINEDFORCES(EDF)(1)Theincreaseinlengthofatestspecimen,whichresultsfromsubjectingittoadefinedforcefromadefinedpre-tensiononward.Theelongationisexpressedasapercentageoftheinitiallengthofthespecimen.ELASTICITYThepropertyofamaterialbyvirtueofwhichittendstorecoveritsoriginalsizeandshapeafterremovalofadeformingforce. ChemicalpropertiesMASSOFCOATINGThequantityofthecoveringlayerappliedtothesurfaceofthewire,expressedingramsperkilogramofcoatedwire.THICKNESSOFCOATINGTheaveragethicknessofthecoatinglayerexpressedinmicrometers.COMPOSITIONOFCOATINGThequantityofeachofthecomponentsexpressedasapercentageofthetotalmassofthecoating.AdhesionpropertiesADHESIONSTRENGTHTheforcerequiredtoseparateasteeltyrecordfromtherubbercompound.TheforceisexpressedinNewton. SteelCordNomenclaturesystemAtyrecordconstructionisnormallydefinedby•thestructure(orconfiguration)ofthecord•thelengthanddirectionoflay•theproducttypeStructureRULEThedescriptionoftheconstructionfollowsthesequenceofmanufactureofthecordi.e.startingwiththeinnermoststrandorwireandmovingoutwards.FORMATThefulldescriptionofthecordisgivenbythefollowingformula:(NxF)xD+(NxF)xD+(NxF)xDwhereN=numberofstrandsF=numberoffilamentsD=nominaldiameteroffilaments,expressedinmmExamples:(1x3)x0.22+(1x9)x0.22+(1x15)x0.22+(1x1)x0.15ABBREVIATEDFORM•WhenNorFequals1,theyshouldnotbeincluded.Example:3x0.22+9x0.22+15x0.22+0.15•IfthediameterDisthesamefortwoormorepartsinsequence,itmustonlybestatedattheendofthesequence.Thediameterofthespiralwrapshallalwaysbestatedseparately.Example:3+9+15x0.22+0.15•Whentheinnermoststrandorwireisidenticaltotheadjacentstrandorwires,theformulamaybesimplifiedbystatingonlythesumoftheidenticalcomponentsandbracketsneednotbeused. Example:0.22+6x0.22+6x(0.22+6x0.22)becomes7x7x0.22 LengthoflayanddirectionoflayRULEThesequenceororderinthedesignationfollowsthesequenceofmanufacturingi.e.startingwiththeinnermoststrandandmovingoutwards.Example:3+9+15x0.175+0.155/10/16/3.5SSZS5S:laylengthanddirectionofthestrand3x0.17510S:laylengthanddirectionofthelayer+9x0.17516Z:laylengthanddirectionofthelayer+15x0.1753.5S:laylengthanddirectionanddirectionofthewrap ProducttypesREGULARCORD(1)Cordinwhichthedirectionoflayinthestrandsisoppositetothedirectionoflayinclosingthecord.LANG’SLAYCORD(LL)(2)Cordinwhichthedirectionoflayinthestrandsisthesameasthedirectionoflayinclosingthecord.OPENCORD(OC)(3)Acordinwhichwiresarelooselyassociatedandmovablerelativetoeachothertoenablerubbertopenetrateintothecord.COMPACTCORD(CC)(4)Acordinwhichthefilamentsmainlyhavelinearcontactwitheachother.HIGHELONGATIONCORD(HE)(5)Lang’slaycordinwhichthestrandsarelooselyassociatedandmovablerelativetoeachother,toallowthecordtobestretchedsubstantiallyatagivenload.BETRU®CORD(6)acordwithgapsbetweenthefilaments.Thegapsallowtherubbertopenetratethecordandthustoblockanymoistureconduit.TheBETRU®filamentsareformedsotohaveapolygonalcurveinsteadofacircularcurveasperpendicularprojection.HIGHIMPACTCORD(7)aprotectionlayercordofwhichthefilamentsarepreformedthusthatthecordhasfullrubberpenetration.Thisavoidscorrosionandenablestohaveexcellentretreadability.Thecordhasahighimpactabsorptioncapability,asithas5%elongationevenwhenrubberembedded. SteelCordGeneralCharacteristics Rawmaterial:wirerodTomanufacturetyrecordBekaertusesthemostsuitablegradesofhighcarbonsteelaccordingtotheultimatecordtype.Wirerodfeedstockissystematicallyratedforitsqualitylevelandperformance.Averagesteelcomposition:NormaltensileCarbon0.725%Manganese0.525%Silicon0.230%Sulphur0.010%Phosphorus0.010%Tracesofcopper,chromiumandnickel.HightensileCarbon0.825%Manganese0.525%Silicon0.210%Sulphur0.006%Phosphorus0.008%Tracesofcopper,chromiumandnickel.WeldsandsplicesContinuouslengthsaresuppliedwhichmeansthat:a.filamentsplicesarepermittedb.cordweldsarepermittedandshouldwithstandaminimumloadequalto40%ofthebreakingloadofthecord.Theincreaseindiameterofthefinishedweldshouldnotexceedthecorddiameterbymorethan15%c.numberofcordweldswillnotexceed          3perspooltypeBS40orBS60           4perspooltypeBS80Toleranceonindividualvalue•Corddiameter:±5%•Lineardensity:±5%•Lengthofcordperspool:±0.75%ifcordlength²2000m±0.50%ifcordlength>2000mand²8000m±0.25%ifcordlength>8000m±0.75%forHEcordtypes. CoatingdefinitionTheconversionfrommassofcoatingexpresseding/kgtothicknessofcoatingexpressedinmicrometersisdoneaccordingtothefollowingformulaThickness=Massxdx0.235whered=diameteroffilamentinmm HE窗体顶端 SteelCordConstruction Type Preferreduse(guideline) LayLength(mm) LayDirection (Target)CordDiameter(mm) (Target)BreakingLoad(N) (Target)LinearDensity(g/m) MinimumAchievablePlyStrength*(Target)(N/dm) MaximumAchievablePlyStrength*(Target)(N/dm) SpoolCordLength(monBS40) 3x4x0.20 HE TBR 3/6 SS 1.04 835 3.24 32565 57615 5160 4x4x0.22 HE TBR 3.5/5 SS 1.32 1220 5.40 42700 70760 3150 3x7x0.20 HE TBR 3.5/6.3 SS 1.37 1400 1.80 49000 78400 2800 4x4x0.225 HE TBR 4.3/7.5 SS 1.36 1580 5.41 55300 90060 3000 3x7x0.22 HE TBR 4.5/8 SS 1.52 1820 6.95 60060 94640 2400窗体底端*minimumplystrengthisachievedwithintercorddistanceof1.5mm*maximumplystrengthisachievedwithintercorddistanceof0.4mm窗体顶端 SteelCordConstruction Type Preferreduse(guideline) LayLength(mm) LayDirection (Target)CordDiameter(mm) (Target)BreakingLoad(N) (Target)LinearDensity(g/m) MinimumAchievablePlyStrength*(Target)(N/dm) MaximumAchievablePlyStrength*(Target)(N/dm) SpoolCordLength(monBS40) 5x0.30HighImpact HI LTR/SUV 12.5 S 1.06 945 2.82 36855 64260 4350 5x0.38HighImpact HI TBR 14 S 1.34 1280 4.63 44800 72960 3500 5x0.35HighImpact HI TBR 14 S 1.19 1220 3.89 45140 76860 3250窗体底端*minimumplystrengthisachievedwithintercorddistanceof1.5mm*maximumplystrengthisachievedwithintercorddistanceof0.4mm窗体顶端 SteelCordConstruction Type Preferreduse(guideline) LayLength(mm) LayDirection (Target)CordDiameter(mm) (Target)BreakingLoad(N) (Target)LinearDensity(g/m) MinimumAchievablePlyStrength*(Target)(N/dm) MaximumAchievablePlyStrength*(Target)(N/dm) SpoolCordLength(monBS40) 2x0.30 HT PCR 14 S 0.60 445 1.12 21360 44500 16300 2+2x0.25 HT PCR oo/14/14 -SS 0.65 605 1.55 28435 57475 12500 2+1x0.30 HT PCR oo/16 -S 0.75 665 1.68 29260 57855 10000 3x0.30HTBetru® HT PCR 16 S 0.65 660 1.68 31020 62700 13000 5x0.25Betru® HT PCR 11 S 0.68 750 1.94 34500 69750 10500 2+2x0.30 HT PCR oo/16/16 -SS 0.78 890 2.23 39160 75650 8125 2+2x0.32 HT LTR/SUV oo/16/16 -SS 0.83 945 2.57 40635 76545 7000 5x0.30Betru® HT LTR/SUV 16 S 0.81 1050 2.80 45150 87150 7300 2+2x0.35 HT LTR/SUV oo/16/16 -SS 0.94 1060 3.03 43460 79500 6000 2+7x0.22 HT LTR/SUV 6.3/12.5 SS 0.83 1070 2.74 46010 86670 7200 5x0.35Betru® HT LTR/SUV 17 S 0.94 1415 3.83 58015 106125 5500 3x0.20/9x0.175+0.15CC HT TBR 10/5 SZ 1.02 1020 2.65 40800 71400 6000 3x0.22/9x0.20+0.15CC HT TBR 12.5/5 SZ 1.11 1270 3.33 48260 83820 5000 3+9x0.22+0.15 HT TBR 6.3/12.5/3.5 SSZ 1.17 1450 3.85 53650 92800 4000 3x0.22/9x0.20CC HT TBR 12.5 S 0.88 1270 3.33 53340 99060 7000 3+9x0.25+0.15 HT TBR 7/14.5/5 SSZ 1.31 1790 4.89 64440 103820 3500 5x0.38Betru® HT TBR 18 S 1.03 1660 4.51 66400 116200 4600 0.20+18x0.175CC HT TBR 10 Z 0.90 1525 3.73 64050 117425 6000 3x0.20+6x0.35 HT TBR 10/18 SZ 1.13 1990 5.34 75620 129350 3500 0.22+6+12x0.20 HT TBR 6.3/12.5 ZZ 1.02 1880 4.86 75200 131600 4700 4+6x0.35Betru® HT TBR 20 S 1.49 2550 7.59 84150 135150 2200 0.365+6x0.35Betru® HT TBR 18 S 1.08 1995 5.42 77805 135660 3600 0.22+18x0.20CC HT TBR 12.5 Z 1.02 1945 4.84 77800 136150 4700 4+6x0.38Betru® HT TBR 22 S 1.58 2950 8.95 94400 150450 1850 0.25+6+12x0.225 HT TBR 8/16 ZZ 1.09 2320 6.16 90480 155440 4000 7x7x0.25+1 HT OTR 12.5/20/5 SZS 2.52 6700 19.80 167500 227800 800 7x(3+9x0.245)+0.20 HT OTR 6.3/12.5/28/5 ZZSSZS 3.30 10750 33.07 225750 290250 450 7x(3+9+15x0.175)+0.20 HT OTR 5/10/16/38/5 SSSZZZSZ 3.60 12400 37.50 248000 310000 375 7x(3+9+15x0.245)+0.245 HT OTR 6.3/12.5/18/55/5 ZZZSZ 4.84 24200 73.90 387200 459800 195窗体底端minimumplystrengthisachievedwithintercorddistanceof1.5mm*maximumplystrengthisachievedwithintercorddistanceof0.4mm窗体顶端 SteelCordConstruction Type Preferreduse(guideline) LayLength(mm) LayDirection (Target)CordDiameter(mm) (Target)BreakingLoad(N) (Target)LinearDensity(g/m) MinimumAchievablePlyStrength*(Target)(N/dm) MaximumAchievablePlyStrength*(Target)(N/dm) SpoolCordLength(monBS40) 2+1x0.30 NT PCR oo/16 -S 0.75 530 1.68 23320 46110 10000 2+2x0.25 NT PCR oo/14/14 -SS 0.65 530 1.55 24910 50350 12500 3x0.30NTBetru® NT PCR 16 S 0.65 540 1.68 25380 51300 13000 2+7x0.22 NT LTR/SUV 6.3/12.5 SS 0.83 960 2.74 41280 77760 7200 2+7x0.22+0.15 NT LTR/SUV 6.3/12.5/5 SSZ 1.08 960 2.90 37440 65280 5200 3x0.20/9x0.175CC NT LTR/SUV 10 S 0.75 875 2.49 38500 76125 8500 3x0.22/9x0.20+0.15CC NT TBR 12.5/5 SZ 1.11 1095 3.33 41610 72270 5000 3+9x0.22+0.15 NT TBR 6.3/12.5/3.5 SSZ 1.17 1290 3.85 47730 82560 4000 2+7x0.28+0.15 NT TBR 8/16/3.5 SSZ 1.33 1440 4.64 50400 83520 3250 0.20+18x0.175CC NT TBR 12.5 Z 0.90 1300 3.71 54600 100100 6000 3+9+15x0.175+0.15 NT TBR 5/10/16/3.5 SSZS 1.34 1770 5.42 61950 100890 3100 3x0.20+6x0.35 NT TBR 10/18 SZ 1.13 1660 5.34 63080 107900 3500 0.365+6x0.35NTBetru® NT TBR 18 S 1.08 1650 5.42 64350 112200 3600 0.22+18x0.20CC NT TBR 12.5 Z 1.02 1655 4.84 66200 115850 4700 0.25+18x0.22CC NT TBR 16 Z 1.13 2050 5.85 77900 133250 4000 3+9+15x0.22+0.15 NT TBR 6.3/12.5/18/3.5 SSZS 1.62 2750 8.50 88000 137500 2000 3+9x0.22+9x3x0.20+015 NT OTR 6.3/12.5/10/20/35 SSSZS 1.98 3400 10.79 98600 142800 3+9+9x3x0.25+0.15 NT OTR 7/14/12.5/22/5 SSSZS 2.42 4800 15.71 124800 168000 900 7x7x0.22+1 NT OTR 12.5/20/5 SZS 2.24 4900 15.20 132300 186200 1100 7x7x0.30 NT OTR 12.5/20 SZ 2.70 7950 28.60 190800 254400 625窗体底端minimumplystrengthisachievedwithintercorddistanceof1.5mm*maximumplystrengthisachievedwithintercorddistanceof0.4mm窗体顶端 SteelCordConstruction Type Preferreduse(guideline) LayLength(mm) LayDirection (Target)CordDiameter(mm) (Target)BreakingLoad(N) (Target)LinearDensity(g/m) MinimumAchievablePlyStrength*(Target)(N/dm) MaximumAchievablePlyStrength*(Target)(N/dm) SpoolCordLength(monBS40) 5x0.22Betru® ST PCR 9.5 S 0.60 635 1.51 30480 63500 13600 4x0.35STBetru® ST LTR/SUV 18 S 0.85 1236 3.05 53148 98880 6975 0.20+18x0.175 ST TBR 10 Z 0.90 1610 3.73 67620 123970 6000 0.22+18x0.20 ST TBR 12.5 Z 1.02 2095 4.84 83800 146650 4700窗体底端minimumplystrengthisachievedwithintercorddistanceof1.5mm*maximumplystrengthisachievedwithintercorddistanceof0.4mm  SteelCordTestingandprocessingSamplingSamplesaretakenofeachshipmentaccordingtoafrequencyderivedfromtheMilitaryStandards414forvariables.TestsAllspecifiedtestsareconductedaccordingtothecorrespondingBekaerttestprocedure.Principlesfollowhereafter.DIAMETEROFCORD(1)Aspecimenofcordisheldbetweentwoparallelcircularfacedanvilsofamicrometer.ThemovableanvilsclosegraduallyinordertomeasurethethicknessofthecordwithoutcrushingorflatteningLENGTHOFLAYAspecimenofcordorstrandisuntwisteduntiltheelementstobedeterminedareparallel.Thelengthoflayequalsthelengthofthespecimenbeforeuntwistingdividedbythenumberofturnsfoundduringuntwisting.DIRECTIONOFLAYThedirectionoflayisvisuallydeterminedaccordingtoitsdefinition.LINEARDENSITY(2)Aspecimenofcordofknownlengthisweighed.(1) (2)(1)RESIDUALTORSIONSOneendofaspecifiedlengthofcordisallowedtoturnfreely:thenumberofrevolutionsiscountedandthedirectionnoted.ARCHEIGHTAfterreleasingtheendofthespecimenusedfortheresidualtorsiondetermination,theheightofthearc,expressedinmmandataninterdistanceof300mm,shallbemeasured.FLAREThespreadingofthefilamentendsorthestrandendsisobservedaftercuttingthecordorstrand.BREAKINGFORCE(1)Aspecimenofcordisclampedinatensiletestingapparatusunderadefinedpre-tensionandsubjectedtoaconstantrateofextensionuntilrupture.Ifpresent,thespiralwrapshallberemovedfromthelengthofthespecimenincontactwiththeclamps.Onlyclampswhichdonotcausefracturesinthevicinityoftheclampedareashallbeused.COATINGANALYSISThebrasscoatingofaweighedsampleofcordisstrippedbydissolvingitinanammoniaandammoniumpersulfatesolutionwhichdoesnotaffecttheiron.CopperandzincaredeterminedindividuallybyX-rayfluorescencespectrometryofthebrasscoatingsolution(1).MASSOFBRASSTheamountiscalculatedfromthesumofcopperandzinc,relatedtotheoriginalweightofthesampleandisexpresseding/kg.COMPOSITIONOFCOATINGCUANDZNOutoftheresults,thecompositioniscalculatedandexpressedas%Cu.ADHESIONSTRENGTH(2)ThetestmethodusedisaccordingtoASTMD2229oramethoduponcustomer’srequest.Therubbercompoundusedshallbeprovidedbythecustomertogetherwithrelevantinformationaboutthetimeandtemperatureforvulcanisation.AcceptabilityAconsignmentisreleasedforshippingwhenthetestresultsareinaccordancewiththespecifications.QualityreportEachshipmentisaccompaniedbyacertifiedqualityreportorisdirectly.clickheretoseeasampleProcessingBekaerttakescaretohavegoodprocessingeffectivenessatthecustomer’ssiteandwillavoidallpossiblereasonsofdisturbance(listedhere).•Iftipriseoccurs,orjustpreventively,theplymakingsitewillbevisited.•Asystematicapproachisusedingatheringtheneededdatatoassessthetiprisepotential.(seepicture).•Byworkingtogetherinthisway,allqualityproblemsandmostofallthetipriseorrelatedproblemsshouldbeeliminated. BeadwireBeadWireDefinition DiameterThearithmeticaverageofthemaximumandminimumthicknessofthewiremeasuredinthesameplaceandexpressedinmillimetresBreakingforceThemaximumforcewhichatestspecimencansupportduringatensiletestofloadingtobreak,expressedinNewton.TensilestrengthThebreakingloadorforceofawireperunitofcross-sectionalareaoftheunstrainedspecimen,expressedinNewtonpersquaremillimetreorMegapascal.ElongationatbreakTheincreaseinlengthofatestspecimenwhichresultsfromsubjectingittothebreakingforceinatensiletestexpressedasapercentageoftheinitiallength. Bekaertcansupply:–roundbeadwireinregular,highandsupertensilequality ArcHeightArcHeightistheamount(inmm)ofbendingabeadwiresamplehaswhenplacedon2supportpointswithaninterdistanceof620mm.Torsions(1)Thenumberofrevolutionsmadebyaspecificlengthofwirewhentwisteduntilruptureonitsownaxisinonedirection.CoatingMASSOFCOATINGThequantityofthecoveringlayerappliedtothesurfaceofthewireexpressedingramsperkgofwiresurface.COMPOSITIONThequantityofeachofthecomponentsexpressedasapercentageofthetotalmassofthecoating.GeneralCharacteristics Rawmaterial:wirerodBeadwireisahard-drawnhighcarbonwiremadefromqualitysteelrods.Wirerodfeedstockissystematicallyratedforitsqualitylevelandperformance.Averagesteelcomposition:TensileNormalHighCarbon0.725%0.825%Manganese0.550%0.520%Silicon0.250%0.230%Sulphur0.015%0.008%Phosphorus0.015%0.010%Tracesofcopper,chromiumandnickel.Tolerancesondiameter±0.02mmifØ<2.00mm±0.03mmifس2.00mmElongationatbreakMin.5%,totalelongationforroundbeadwire.Elongation<2%isavailableonrequest.   Diam.(mm) TensileType TensileClass(N/mm²) BreakingForceMin.(N) Torsions Max.ArcHeight(mm) 0.86 ST R2500 1350 50 55 0.890 HT R2350 1350 50 50 0.890 NT R2100 1200 50 50 0.965 HT R2250 1525 50 45 0.965 NT R2000 1350 52 45 1.295 HT R2250 2795 25 35 1.420 NT R1950 2880 22 35 1.550 HT R2200 3900 20 35 1.550 NT R2000 3525 20 35 1.600 HT R2200 4150 20 30 1.650 NT R1850 3680 20 30 1.820 NT R1650 3970 20 30 2.000 HT R2100 6125 22 30 2.000 NT R1800 5260 20 30 2.200 HT R2100 7425 22 30BeadWireTesting SamplingSamplesaretakenofeachshipmentaccordingtoafrequencyderivedfromtheMilitaryStandards414forvariablesandMilitaryStandards105Dforattributes.TestsAllspecifiedtestsareconductedaccordingtotheBekaerttestprocedureswhicharebasedoninternationalstandardsandwhoseprinciplesfollowhereafter.DIAMETEROFWIREAspecimenofwireisheldbetweentwoparallelanvilsofamicrometer.BREAKINGFORCEAspecimenofwireisclampedinatensiletestingapparatusunderadefinedpre-tensionandsubjectedtoaconstantrateofextensionuntilrupture.BREAKINGELONGATIONDuringthebreakingforcedeterminationofthewire,theincreaseofthetestlengthatbreakwillberegistered.CoatingBronzecoatingisdirectlyanalysedbymeansofx-rayfluorescencespectrometryonthewire.ComponentsCuandSnareindividuallydetermined.Thecompositionisexpressedas%SnrelativetothetotalamountofCuandSn.Coatingmassisexpresseding/kgwire.Brasscoatingisindirectlyanalysedbydissolutionofthecoating.Therefore,aknownweightofbeadwireisbroughtinafixedvolumeofastrippingsolution.Thestrippingsolutionconsistsofanammoniaandperoxidisulfatesolutionwhichdoesnotaffecttheiron.ThedissolvedcoatingisanalysedbymeansofX-rayfluorescencespectrometry.ThetechniqueyieldstheweightofthecoatingperunitweightofwireandthecompositionofthebrassexpressedasthepercentageofCuinthetotalweightofthecoating.ADHESIONSTRENGTHThetestmethodusedisinaccordancewithASTMD1871oramethodspecifiedbythecustomer.Therubbercompoundusedshallbeprovidedbythecustomertogetherwithrelevantinformationaboutthetimeandtemperatureforvulcanisation.AcceptabilityAconsignmentisreleasedforshippingwhenthetestresultsareinaccordancewiththespecifications.QualityreportEachshipmentisaccompaniedbyacertifiedqualityreport.Clickheretoseeanexample Packing1234HANDSAMPLESUponrequest,anumberofsamplesareprovided.Perreel,10piecesofwire,each450mmlong,areputinaplasticbagwithdesiccant,whichgoeswiththeshipment.STORAGECONDITIONSAllcoilsareprovidedwithdesiccant.Thepackingunitscanbestoredforsixmonths,insideawarehousewherethecombinationoftemperatureandhumiditydoesnotleadtocondensation.Itisrecommendedtoconditiontheunitsatambienttemperaturebeforetheyareopened.MountingofreellesscoilMETHOD1.Liftthereellesscoilwiththeappropriatedevice.2.Lowerthecoilontooneoftheremountableflanges.3.Removetheliftingdeviceandplacetheotherflangeontopofthecoil.4.Tightentheassemblybymeansofawrench.5./6.Tiltthetableuntilthespoolisinuprightposition.1.2.3.4.5.6.ORDERINGPROCEDUREInquiriesorordersofbeadwiresmustspecify:•dimensionsandtypeofwire•typeofcoating•typeofreel•totalquantityRETURNOFPACKINGAllpackingmaterialsaretobereturnedtotheplantoforigin.    欢迎您的下载，资料仅供参考！致力为企业和个人提供 合同 劳动合同范本免费下载装修合同范本免费下载租赁合同免费下载房屋买卖合同下载劳务合同范本下载 协议，策划案计划 书 关于书的成语关于读书的排比句社区图书漂流公约怎么写关于读书的小报汉书pdf ，学习资料等等打造全网一站式需求。