涂料知識講座

PaintingOverview環(huán)境管制納入涂裝要求關(guān)鍵性管制設(shè)備過程操作/系統(tǒng)安全性涂料儲藏涂料儲藏溫度控制溫度10-35度先進先出安全性Premix環(huán)境Needkeeptheoverallenvironmentclean,routinepracticesshouldbefollowedtomaintainadustfreeenvironment.T/Hcontroltocorrelatewithpaintsupplyboothandsprayhouse’ssetting--SpecfromPPG--soastheviscositycanbeproperlycontrolled.Wellventilatedworkingandboothareas.工作場所通風良好OperatorHealth作業(yè)員健康PremixEquipment設(shè)備Agitator,thebetterwithdisturbfunction..調(diào)漆員﹐攪拌運作??StopWatch碼表WeightScale天平ViscosityCup粘度杯Shaker攪拌器Filter,thebetternorecycleusing過濾器最好不要重復使用Mask,smock,gloves,safetyglassetc.面罩﹐工作服﹐手套﹐防護眼睛等。Premix制程BypaintsetupSOP/SIP/Recorddocumentsystemsetup.Alltools/containerneedcleanbeforeuse.

Blendingpaint,hardenerandreduceraccordingtoPDS黏度量測前涂料要攪拌勻.量測涂料黏度時核對溫度記錄黏度﹐涂料溫度及攪拌時間CriticalApplicationControls黏度溫度涂料運輸噴涂攪拌混合溶劑TechnicalServiceSupport

BasicSystemControls基本系統(tǒng)管制BoothTemperature(20-30C)溫度(20-30C)BoothHumidity(50-60%)儲藏室濕度(50-60%)RoomHumidity(45-65%)室溫濕度(45-65%)ConveyorSpeedFluidFlowandAirPressuresViscosityandTemperatureFilmBuilds噴涂??OvenTemperatures烤箱溫度Note:Inmostcasestheenvironmentisnotcontrolled.AgitationCriticalinmaintainingconsistentcoatingpigmentdispersionandviscosity.

Ifpropercoatingagitationisnotachieved:CureorglossvariationscanoccurasaresultofimpropercatalystmixingPotentialpigmentsettlingresultinginglossvariationsInaccurateviscosityreadingsTwoComponentMixingCriticalinachievingpropercoatingcolor,cure,anduniformglossAutomatedmixingequipmentrequiresroutinecalibrationchecks,byvolumeorweightIfcomponentsarenotblendedaccurately:Offcolorappearance色差I(lǐng)nconsistentglossappearance光澤不一致Inconsistentfilmcuring,notcompletelydry薄膜不一致﹐噴太濕Lackoffilmhardness膜硬度不足LossofperformancepropertiesPremixNoteViscositytobemeasuredaftercompletingagitation.RecommendationsonPPGprocesscontrolchart.

Filtering,meshsizetoberecommendedbyTSSRofPPG.Oncebeingmixed,documenttimemixedforconsideringthepotlifeandpaintconsumption.Again,providedonPDSandProcessControlsheetsprovidedbyPPG.一旦混淆﹐文件條款規(guī)定保質(zhì)期以考慮儲藏罐壽命及涂料使用量。再者﹐在PDS之上并由PPG提供程序管制圖。ViscosityThedegreeofthicknessofaliquid.液體濃濃度Themeasureofaliquid’sresistancetoflow.相對流流動性性﹐對對液體體阻力力的測測量Viscosityaffects:PaintFluidity涂料流流動性性Atomization霧化PigmentDispersion色差ProblemswithViscosityViscositytooLow:粘度太太低RunsandSags流漆&下陷SolventPopping熔解太太快Mottling––metallic雜色-顆粒粒的ExcessiveFog&Overspray過多的的塵霧霧和不不粘噴噴涂物物HidingPower-BlackandWhite漏黑-反白白ViscositytooHigh:粘度太太高OrangePeel橘子皮皮DrySpray噴太干干HigherFluidPressure霧化壓壓力過過高PoorAtomization霧化不不足TemperatureCriticalincontrollingviscosity.Materialmustbeinthespecifiedtemperaturerangeforaccurateviscosityreadings&maintainconsistentapplicationIfthematerialisoutsidethespecifiedtemperaturerangeandNOTmonitored:InaccurateviscosityreadingsPooratomizationPoororexcessivecoatingflowoutPretreatmentDegrease.IPAorrecommendsolventaccordingtosubstratematerial.Dustfree.AirflowandelectrostaticDrythesubstrateBeforecoated,thesurfaceshouldbecleaninganddryWhenonlinepriortopainting,de-ionizeairblowofftoeliminatestaticchargeonsurface.在線上上噴涂涂前﹐﹐用靜靜電刀刀除塵塵。CleaningBeforeusing,allequipmentshouldbeclean.Besidefornormalrinsesolvent,paintreducerisgenerallyagoodsolventforflushingpriortoloadingcoating.Afterusing,allequipmentshouldbecleanimmediately.Avoidcontaminationofmaterialswhenswitchingbetweenmaterials.在轉(zhuǎn)換換材料料時﹐﹐避免免材料料污染染。PaintSupplyingRoomPaintpotcleaningandsystemflushTemp.andHumiditycontrolinroom室內(nèi)溫溫﹑濕濕度管管制Safetyforpressurepot壓力罐罐安全全性ViscosityinspectionregularlyPainting--Environment﹕環(huán)境Temperaturecontrolinbooth無塵室室溫度度管制制Humiditycontrolinbooth無塵室室濕度度管制制LustrationGrade:Nolessthan100kgrade清潔等等級﹕﹕不小小于100kDustfreeattheentrancetobooth風淋門門除塵塵Inputairfilter安置空空氣過過濾器器Inputairheat輸入熱熱空氣氣PaintingPaintingshouldbeseparatedfrommoldingarea噴漆段段應和和“成成品””區(qū)分分開。。Cleaningclothesforworker保持工工衣清清潔Airexchange換氣Painting--Equipment﹕﹕儀器Robotorspindletype機器人人或轉(zhuǎn)轉(zhuǎn)軸類類型ProgramaccordingtopartHVLPorConventionaltypegunHVLP或常規(guī)規(guī)漆槍槍？？？？Conveyortype傳送類類型Boothtype,waterwallordryfilter無塵室室裝備備﹕水水簾幕幕或濾濾網(wǎng)Watertankinbooth保持水水簾幕幕的水水流AirSprayBasicsAtomization:thebreakupoffluidintosmalldropletsDefinitionofAirSpray:usescompressedairtobreakupfluidintosmallatomizeddroplets.AdvantagesofAirSpray:VersatileApplicationTool﹕﹕工具通通用LowCapitalInvestment﹕﹕降低成成本VersatileFluidFeedSystems﹕供料系系統(tǒng)通通用FineFinish:節(jié)省涂涂料ExcellentforMetallics極好的的金屬屬性WhatisHVLP?HVLPsprayusesahighvolumeofair,deliveredatlowpressure,toatomizepaintintoapatternoflow-speedparticles.Thehighpressureofconventionalspraystendsto““blast””thematerialintosmallparticles.常歸霧霧化高高壓將將材料料變成成小顆顆粒。Incontrast,HVLPreliesonairdeliveredat10psiorlesstobreakthematerialintosmallparticles.相比之之下﹐﹐HVLP依賴空空氣在在10Pis或清除除細小小顆粒粒HVLPwillworkwithanymediumsolidsmaterialthatcanbeatomizedbythegun.HVLP將使噴噴槍霧霧化的的涂料料噴涂涂于任任何固固體材材料。。HVLPAdvantages:HightransferefficiencyLessoversprayBoothmaintenance無塵室室防護護Materialcosts成本W(wǎng)astedisposal報廢處處理Disadvantages:SlowerproductionratesNotallmaterialsbreakupwell(i.e..highsolids)PaintingProcessAtomization﹕霧化Fluidflow﹕﹕液體流流量GunPosition/AngleofApplication噴槍位位置/應用用角度度(范圍圍)FluidandAirPressureRecording液壓&空氣氣壓力力記錄錄Filmbuilding涂膜Flashtimebetweenpasses記錄噴噴涂時時間Flashtimebeforeoven進烤箱箱時間間AtomizationDefinedasthebreakingupofpaintintotinydropletstoformamistfromaliquid涂料進進入霧霧化腔腔內(nèi)分分解為為液霧霧Usedto:應用Shapethespraypattern制定噴噴霧模模式GuidethepainttothepartFormdropletsize霧化ProblemswithAtomizationAtomizingAirtooHigh:霧化太太高DryOversprayExcessiveFog過多塵塵霧InconsistentGloss不一致致光澤澤LowerFilmBuilds較低薄薄膜層層AtomizingAirtooLow:霧化太太低RunsandSags熔化&下陷陷OrangePeel橘子皮皮SolventPopping熔解太太快ExcessiveFilmBuilds過多薄薄膜層層FluidDeliveryDefinedastheamountofmaterial(inouncesorccperminute)beingemittedfromthetipofthefluidnozzle.定義從噴噴嘴單位位時間涂涂料流量量(每盎盎司或cc每分鐘內(nèi)內(nèi))Fluiddeliveryaffects:液體傳送送影響Atomization霧化Filmbuild涂膜層Fluidflowaffectedby﹕液體流程程受以下下因素影影響Viscosity﹕﹕粘度PumpandRegulatorfluidpressures吸取涂料料壓力&調(diào)整液體體壓力Orificesizeoffluidnozzle/tip液體噴嘴嘴/口徑徑Adjustmentofgunfluidcontrolvalve液體噴槍槍調(diào)節(jié)器器管控閥閥Triggeringactionofapplicator外界加壓壓作用ProblemswithFluidDeliveryFluidDeliverytooHigh:RunsorSagsSolventPopping溶劑揮發(fā)發(fā)Mottling––metallics砂粒Highfilmbuilds薄膜太厚厚OrangePeel橘子皮FluidDeliverytooLow:DrysprayLowfilmbuildsPoorHidingAdjustmentsSystemAdjustments:therearetwotypesofairspraysystems:調(diào)節(jié)系統(tǒng)統(tǒng)﹕兩種種霧化類類型PressureFeedSystem進料系統(tǒng)統(tǒng)Therearetwoareaofadjustmentinthepressurefeedsystem:airandfluid.進料系統(tǒng)統(tǒng)有二個個調(diào)整區(qū)區(qū)域﹕空空氣&液液體Theairpressureiscontrolledbyanairregulatorinthemainairlinetothegun.氣壓由空空氣調(diào)節(jié)節(jié)員在主主要的供供氣線上上管制。。Fluidflowiscontrolledeitherbyafluidregulator,ortheregulatoronthepressurepot.液體流程程由液體體調(diào)整器器和壓力力罐調(diào)整整器管制制。SiphonFeedSystem虹吸管進進料系統(tǒng)統(tǒng)Onlytheairisadjustedinthesiphonfeedsystem.在虹吸管進進料系統(tǒng)統(tǒng)中僅是空氣氣被調(diào)整整過的AdjustmentsPatternAdjustingValve式樣調(diào)節(jié)節(jié)閥Thepatternadjustingvalveregulatesairtothe““horns”ofthegunaircap.Hornaircontrolstheshapeofthespraypattern.式樣調(diào)節(jié)節(jié)閥管控控噴槍帽帽處喇叭叭口氣流流。喇叭叭口氣流流管控霧霧化形狀狀。AirAdjustingValve空氣調(diào)節(jié)節(jié)(霧化化調(diào)節(jié))閥Theairadjustingvalvecontrolsonlytheflowofair(CFM)totheaircapandhasnoeffectonairpressure(PSI).空氣調(diào)節(jié)節(jié)閥僅管管制空氣氣流程(CFM)﹐不影響氣氣壓(PSI)AdjustmentsFluidatGunAdjustment噴槍調(diào)節(jié)節(jié)器的功功能FluidAdjustingValve:液體調(diào)整整閥Thefluidadjustingvalvecontrolsthevolumeoffluidbyrestrictingfluidflow.Itdoesnotaffectthepressure(PSI)ofthefluid.靠限制液液體流程程管控液體調(diào)整整閥容量量﹐不影影響液體體壓力。。Whenfluidregulationispossible(pressurefeedsystems)itisbesttoregulatepressureratherthanrestrictingmaterialflowwithneedle.液體調(diào)節(jié)節(jié)可能時時﹐最好好管控壓壓力而并并非用針針限制材材料流程程。FilmBuildDefinedastheamountofmaterialleftonasurfaceafterthesolventhasevaporated.Measuredinmilsormicrons.測量精度度千分之之一或微微米Wetmils-atapplicationDrymils-afterovencureFilmbuildisaffectedby:AtomizingairFluiddeliveryViscosityofPaintOperatorTechnique-linespeedvsspraygunsetupProblemswithFilmBuildDryFilmBuildtooHigh:Blistering水泡Cracking斷裂OrangePeel橘子皮DryFilmBuildtooLow:Chalking漏黑Chipping雜質(zhì)Fading褪色GlossRetention保持光澤澤Dell-MysticSilverXPM21330MonocoatOperationInstruction(Substrate:Plastic)Pretreatment(Degrease&removedust)MysticSilverSpray4coatsDFT:20-30umBake60℃℃x20~30minsPackingflash5minCoolingtoroomtemp.XPM21330:980-35239:M850-59572(Monocoat)(Hardener)(Thinner)=4:1:1.5~2(byweight)Viscosity:9-13sec/IWATA/25℃)EH/2002/8Dell-IonSilverXPM21332MonocoatOperationInstruction(Substrate:Plastic)Pretreatment(Degrease&removedust)IonSilverSpray4coatsDFT:20-30umBake60℃℃x20~30minsPackingflash5minCoolingtoroomtemp.XPM21332:980-35239:M850-59572(Monocoat)(Hardener)(Thinner)=4:1:1.5~2(byweight)Viscosity:12-14sec/IWATA/25℃)EH/2002/8BakingOvensettingpointLinespeedBakingtimeBoxovenTimebetweenlineovenandboxovenReworkingPartsneedtobesandedandthenIPAwiped.部分需要要打磨并并IPA處理。500-1000GritSandpaperusedtoabradesurface.以500-1000#砂紙打打磨表面面。Cleanthesurfacebeforeandaftersanding.Repeatentireprocessasbefore.整個制程程的循環(huán)環(huán)。SafetyinPaintSprayingOperations噴漆霧化化操作的的安全性性SafetyInPaintSprayingOperationsGeneralSafetyConsiderations一般安全全性考慮慮事項Bonding&Grounding粘合&接接地PressurizedEquipmentGuns:噴槍Donotpointgunatanypartofbody禁止用噴噴槍噴射射人體的的任何部部位。Donotplacehandorfingersoverspraytip禁止將手手掌或手手指置于于噴槍射射口處。。Engagetriggerlockwhennotinuse(airless)不通風---停停止供氣氣時鎖緊緊閥門。。Inspectforphysicaldamageorloosefittingsbeforeuse使用前檢檢查設(shè)備備磨損或或零件是是否匹配配。Alwayshavetipguardinplacewheninuse(airlessguns)槍頭在停停噴時注注意保護護。DonotexceedMaximumAllowableWorkingPressure(MAWPorMWP)禁止超過過最大工工作壓力力(MAWP或MWP)PressurizedEquipmentAir/PaintHose:空氣管/涂料管管Inspectforcuts,abrasions,bulging,leaks,looseconnections-REMOVEDEFECTIVEHOSESFROMSERVICEIMMEDIATELY檢查發(fā)現(xiàn)現(xiàn)管道有有切口﹐﹐表面磨磨損﹐凸凸起﹐漏漏洞﹐連連接松脫脫等現(xiàn)象象。立即即解決并并更換有有缺陷的的管道。。Providestrainrelief'sonconnectingendsofhighpressurehoseAssurehoseiscompatiblewithcoating/cleaningsolventstobeused保証管道道中所供供給的涂涂料/清清潔溶劑劑能被充充分使用用DonotexceedMaximumAllowableWorkingPressure(MAWPorMWP)禁止超過過最大工工作壓力力(MAWP或MWP)Donotexceedmaximumrecommendedtemperature禁止超過過被推薦薦溫度的的最大值值Donotpullonhosetomoveequipment禁止拉動動管道來來移動設(shè)設(shè)備。PressurizedEquipmentPressurePot:壓力瓶Inspectforphysicaldamagebeforeeachuse-REMOVEFROMSERVICEIMMEDIATELYIFDAMAGED在實際使使用前檢檢查每種種使用儀儀器是否否有損﹐﹐如有﹐﹐立即更更換。Checklidgasketconditionbeforeeachuse使用前檢檢查蓋子子墊圈的的封閉性性。Assurepressurereliefdeviceisinplaceandoperablebeforeuse使用前保保証降壓壓裝置有有地方可可操作。。Securealllidretainersbeforeuse使用前固固定好所所有的蓋蓋子。DonotexceedMaximumAllowableWorkingPressure(MAWPorMWP)禁止超過過最大工工作壓力力(MAWP或MWP)Fire/ExplosionPotentialCausesOfFire/Explosion:潛在性火火災Staticelectricity靜電Electrostaticarc電弧ChemicalIncompatibility起反應的的化學品品Useofnon-approvedelectricalequipment使用未被被認可的的電器設(shè)設(shè)備Smoking吸煙Defectiveelectricalequipment有缺陷的的電器設(shè)設(shè)備Spontaneouscombustion自燃Fire/ExplosionSTATICELECTRICITY靜電Causedbythecontactandseparationofmaterials材料相互互間摩擦擦產(chǎn)生靜靜電Generatedduringtheagitation,dispensing,filtering,mixing,atomization/sprayingofliquids液體在攪攪拌﹐分分發(fā)﹐混混合﹐過過濾﹐霧霧化中產(chǎn)產(chǎn)生PrimarycontrolmethodisBonding&Grounding主要管制制方法﹕﹕粘合&接地Bonding&GroundingDefinitions定義Bonding-Theconnectionoftwo(2)ormoreconductiveobjectstogetherbymeansofaconductor(wire)匯接各條條傳導線線經(jīng)一主主導體接接Grounding-Theconnectionofone(1)ormoreconductiveobjectstobuildi