涂料知识讲座课件

PaintingOverview環境管制納入涂裝要求關鍵性管制設備過程操作/系統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環境Needkeeptheoverallenvironmentclean,routinepracticesshouldbefollowedtomaintainadustfreeenvironment.T/Hcontroltocorrelatewithpaintsupplyboothandsprayhouse’ssetting--SpecfromPPG--soastheviscositycanbeproperlycontrolled.Wellventilatedworkingandboothareas.工作場所通風良好OperatorHealth作業員健康PremixEquipment設備Agitator,thebetterwithdisturbfunction..調漆員﹐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.量測涂料黏度时核對溫度記錄黏度﹐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Inconsistentglossappearance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﹐文件條款規定保質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.液體濃度Themeasureofaliquid’sresistancetoflow.相對流動性﹐對液體阻力的測量Viscosityaffects:PaintFluidity涂料流動性Atomization霧化PigmentDispersion色差ProblemswithViscosityViscositytooLow:粘度太低RunsandSags

流漆&下陷SolventPopping熔解太快Mottling–metallic雜色-顆粒的ExcessiveFog&Overspray過多的塵霧和不粘噴涂物HidingPower-BlackandWhite漏黑-反白ViscositytooHigh:粘度太高OrangePeel橘子皮DrySpray噴太干HigherFluidPressure霧化壓力過高PoorAtomization霧化不足TemperatureCriticalincontrollingviscosity.

Materialmustbeinthespecifiedtemperaturerangeforaccurateviscosityreadings&maintainconsistentapplicationIfthematerialisoutsidethespecifiedtemperaturerangeandNOTmonitored:InaccurateviscosityreadingsPooratomizationPoororexcessivecoatingflowoutPretreatmentDegrease.IPAorrecommendsolventaccordingtosubstratematerial.Dustfree.AirflowandelectrostaticDrythesubstrateBeforecoated,thesurfaceshouldbecleaninganddryWhenonlinepriortopainting,de-ionizeairblowofftoeliminatestaticchargeonsurface.在線上噴涂前﹐用靜電刀除塵。CleaningBeforeusing,allequipmentshouldbeclean.Besidefornormalrinsesolvent,paintreducerisgenerallyagoodsolventforflushingpriortoloadingcoating.Afterusing,allequipmentshouldbecleanimmediately.Avoidcontaminationofmaterialswhenswitchingbetweenmaterials.在轉換材料時﹐避免材料污染。PaintSupplyingRoomPaintpotcleaningandsystemflushTemp.andHumiditycontrolinroom室內溫﹑濕度管制Safetyforpressurepot壓力罐安全性ViscosityinspectionregularlyPainting--Environment﹕環境Temperaturecontrolinbooth無塵室溫度管制Humiditycontrolinbooth無塵室濕度管制LustrationGrade:Nolessthan100kgrade清潔等級﹕不小于100kDustfreeattheentrancetobooth風淋門除塵Inputairfilter安置空氣過濾器Inputairheat輸入熱空氣PaintingPaintingshouldbeseparatedfrommoldingarea噴漆段應和“成品”區分開。Cleaningclothesforworker保持工衣清潔Airexchange換氣Painting--Equipment﹕儀器Robotorspindletype機器人或轉軸類型ProgramaccordingtopartHVLPorConventionaltypegunHVLP或常規漆槍？？？Conveyortype傳送類型Boothtype,waterwallordryfilter無塵室裝備﹕水帘幕或濾網Watertankinbooth保持水帘幕的水流AirSprayBasicsAtomization:thebreakupoffluidintosmalldropletsDefinitionofAirSpray:usescompressedairtobreakupfluidintosmallatomizeddroplets.AdvantagesofAirSpray:VersatileApplicationTool﹕工具通用LowCapitalInvestment﹕降低成本VersatileFluidFeedSystems﹕供料系統通用FineFinish:節省涂料ExcellentforMetallics極好的金屬性WhatisHVLP?HVLPsprayusesahighvolumeofair,deliveredatlowpressure,toatomizepaintintoapatternoflow-speedparticles.Thehighpressureofconventionalspraystendsto“blast”thematerialintosmallparticles.常歸霧化高壓將材料變成小顆粒。Incontrast,HVLPreliesonairdeliveredat10psiorlesstobreakthematerialintosmallparticles.相比之下﹐HVLP依賴空氣在10Pis或清除細小顆粒HVLPwillworkwithanymediumsolidsmaterialthatcanbeatomizedbythegun.HVLP將使噴槍霧化的涂料噴涂于任何固體材料。HVLPAdvantages:HightransferefficiencyLessoversprayBoothmaintenance無塵室防護Materialcosts成本Wastedisposal報廢處理Disadvantages:SlowerproductionratesNotallmaterialsbreakupwell(i.e..highsolids)PaintingProcessAtomization﹕霧化Fluidflow﹕液體流量GunPosition/AngleofApplication噴槍位置/應用角度(范圍)FluidandAirPressureRecording液壓&空氣壓力記錄Filmbuilding涂膜Flashtimebetweenpasses記錄噴涂時間Flashtimebeforeoven進烤箱時間AtomizationDefinedasthebreakingupofpaintintotinydropletstoformamistfromaliquid涂料進入霧化腔內分解為液霧Usedto:應用Shapethespraypattern制定噴霧模式GuidethepainttothepartFormdropletsize霧化ProblemswithAtomizationAtomizingAirtooHigh:霧化太高DryOversprayExcessiveFog過多塵霧InconsistentGloss不一致光澤LowerFilmBuilds較低薄膜層AtomizingAirtooLow:霧化太低RunsandSags熔化&下陷OrangePeel橘子皮SolventPopping熔解太快ExcessiveFilmBuilds過多薄膜層FluidDeliveryDefinedastheamountofmaterial(inouncesorccperminute)beingemittedfromthetipofthefluidnozzle.定義從噴嘴單位時間涂料流量(每盎司或cc每分鐘內)Fluiddeliveryaffects:液體傳送影響Atomization霧化Filmbuild涂膜層Fluidflowaffectedby﹕液體流程受以下因素影響Viscosity﹕粘度PumpandRegulatorfluidpressures吸取涂料壓力&調整液體壓力Orificesizeoffluidnozzle/tip液體噴嘴/口徑Adjustmentofgunfluidcontrolvalve液體噴槍調節器管控閥Triggeringactionofapplicator外界加壓作用ProblemswithFluidDeliveryFluidDeliverytooHigh:RunsorSagsSolventPopping溶劑揮發Mottling–metallics砂粒Highfilmbuilds薄膜太厚OrangePeel橘子皮FluidDeliverytooLow:DrysprayLowfilmbuildsPoorHidingAdjustmentsSystemAdjustments:therearetwotypesofairspraysystems:

調節系統﹕兩種霧化類型PressureFeedSystem進料系統Therearetwoareaofadjustmentinthepressurefeedsystem:airandfluid.進料系統有二個調整區域﹕空氣&液體Theairpressureiscontrolledbyanairregulatorinthemainairlinetothegun.氣壓由空氣調節員在主要的供氣線上管制。Fluidflowiscontrolledeitherbyafluidregulator,ortheregulatoronthepressurepot.液體流程由液體調整器和壓力罐調整器管制。SiphonFeedSystem虹吸管進料系統Onlytheairisadjustedinthesiphonfeedsystem.在虹吸管進料系統中僅是空氣被調整過的AdjustmentsPatternAdjustingValve式樣調節閥Thepatternadjustingvalveregulatesairtothe“horns”ofthegunaircap.Hornaircontrolstheshapeofthespraypattern.式樣調節閥管控噴槍帽處喇叭口氣流。喇叭口氣流管控霧化形狀。AirAdjustingValve空氣調節(霧化調節)閥Theairadjustingvalvecontrolsonlytheflowofair(CFM)totheaircapandhasnoeffectonairpressure(PSI).空氣調節閥僅管制空氣流程(CFM)﹐不影響氣壓(PSI)AdjustmentsFluidatGunAdjustment噴槍調節器的功能FluidAdjustingValve:液體調整閥Thefluidadjustingvalvecontrolsthevolumeoffluidbyrestrictingfluidflow.Itdoesnotaffectthepressure(PSI)ofthefluid.靠限制液體流程管控液體調整閥容量﹐不影響液體壓力。Whenfluidregulationispossible(pressurefeedsystems)itisbesttoregulatepressureratherthanrestrictingmaterialflowwithneedle.液體調節可能時﹐最好管控壓力而并非用針限制材料流程。FilmBuildDefinedastheamountofmaterialleftonasurfaceafterthesolventhasevaporated.Measuredinmilsormicrons.測量精度千分之一或微米Wetmils-atapplicationDrymils-afterovencureFilmbuildisaffectedby:AtomizingairFluiddeliveryViscosityofPaintOperatorTechnique-linespeedvsspraygunsetupProblemswithFilmBuildDryFilmBuildtooHigh:Blistering水泡Cracking斷裂OrangePeel橘子皮DryFilmBuildtooLow:Chalking漏黑Chipping雜質Fading褪色GlossRetention保持光澤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.部分需要打磨并IPA處理。500-1000GritSandpaperusedtoabradesurface.以500-1000#砂紙打磨表面。Cleanthesurfacebeforeandaftersanding.Repeatentireprocessasbefore.整個制程的循環。SafetyinPaintSprayingOperations

噴漆霧化操作的安全性SafetyInPaintSprayingOperationsGeneralSafetyConsiderations一般安全性考慮事項Bonding&Grounding粘合&接地

PressurizedEquipmentGuns:噴槍Donotpointgunatanypartofbody禁止用噴槍噴射人體的任何部位。Donotplacehandorfingersoverspraytip禁止將手掌或手指置于噴槍射口處。Engagetriggerlockwhennotinuse(airless)不通風---停止供氣時鎖緊閥門。Inspectforphysicaldamageorloosefittingsbeforeuse使用前檢查設備磨損或零件是否匹配。Alwayshavetipguardinplacewheninuse(airlessguns)槍頭在停噴時注意保護。DonotexceedMaximumAllowableWorkingPressure(MAWPorMWP)禁止超過最大工作壓力(MAWP或MWP)

PressurizedEquipmentAir/PaintHose:空氣管/涂料管Inspectforcuts,abrasions,bulging,leaks,looseconnections-REMOVEDEFECTIVEHOSESFROMSERVICEIMMEDIATELY檢查發現管道有切口﹐表面磨損﹐凸起﹐漏洞﹐連接松脫等現象。立即解決并更換有缺陷的管道。Providestrainrelief'sonconnectingendsofhighpressurehoseAssurehoseiscompatiblewithcoating/cleaningsolventstobeused保証管道中所供給的涂料/清潔溶劑能被充分使用DonotexceedMaximumAllowableWorkingPressure(MAWPorMWP)禁止超過最大工作壓力(MAWP或MWP)Donotexceedmaximumrecommendedtemperature禁止超過被推荐溫度的最大值Donotpullonhosetomoveequipment禁止拉動管道來移動設備。

PressurizedEquipmentPressurePot:壓力瓶Inspectforphysicaldamagebeforeeachuse-REMOVEFROMSERVICEIMMEDIATELYIFDAMAGED在實際使用前檢查每種使用儀器是否有損﹐如有﹐立即更換。Checklidgasketconditionbeforeeachuse使用前檢查蓋子墊圈的封閉性。Assurepressurereliefdeviceisinplaceandoperablebeforeuse使用前保証降壓裝置有地方可操作。Securealllidretainersbeforeuse使用前固定好所有的蓋子。DonotexceedMaximumAllowableWorkingPressure(MAWPorMWP)

禁止超過最大工作壓力(MAWP或MWP)Fire/ExplosionPotentialCausesOfFire/Explosion:潛在性火災Staticelectricity靜電

Electrostaticarc電弧ChemicalIncompatibility起反應的化學品Useofnon-approvedelectricalequipment使用未被認可的電器設備Smoking吸煙Defectiveelectricalequipment有缺陷的電器設備Spontaneouscombustion自燃Fire/ExplosionSTATICELECTRICITY靜電Causedbythecontactandseparationofmaterials材料相互間摩擦產生靜電Generatedduringtheagitation,dispensing,filtering,mixing,atomization/sprayingofliquids液體在攪拌﹐分發﹐混合﹐過濾﹐霧化中產生PrimarycontrolmethodisBonding&Grounding主要管制方法﹕粘合&接地

Bonding&GroundingDefinitions定義Bonding-Theconnectionoftwo(2)ormoreconductiveobjectstogetherbymeansofaconductor(wire)匯接各條傳導線經一主導體接Grounding-Theconnectionofone(1)ormoreconductiveobjectstobuildingorearthgroundbymeansofaconductor(wire)接地-傳導物由一主導物或多條金屬線連接于地面Bonding&GroundingAssurethatthefollowingequipmentisBonded/Grounded:確認下列設備是否接地Spraybooth 壓力罐

Conveyor運送裝置Workholders作業固定架Hooks鉤Paintsupplycontainer(unlessapplyingwaterbasedcoatingsviaelectrostaticequipment)涂料補給容器(消除非水溶劑涂料容器靜電)Pressurepot壓力罐Spraygun(throughhose)噴槍(噴管)Solvent/wastecontainers溶劑廢料存放桶Fire/ExplosionSMOKING煙CommonSense基本常識???Fire/ExplosionSPONTANEOUSCOMBUSTION自燃及燃燒

Increaseinthetemperatureofamaterialtothematerialsignitiontemperature-withouttheaddition