工艺技术_涂料知识讲座

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 Premix Equipment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 Agitation Criticalinmaintainingconsistentcoatingpigmentdispersionandviscosity Ifpropercoatingagitationisnotachieved CureorglossvariationscanoccurasaresultofimpropercatalystmixingPotentialpigmentsettlingresultinginglossvariationsInaccurateviscosityreadings TwoComponentMixing Criticalinachievingpropercoatingcolor 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Lossofperformanceproperties PremixNote Viscositytobemeasuredaftercompletingagitation 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 Viscosity Thedegreeofthicknessofaliquid 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 ProblemswithViscosity ViscositytooLow 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 Temperature Criticalincontrollingviscosity Materialmustbeinthespecifiedtemperaturerangeforaccurateviscosityreadings maintainconsistentapplicationIfthematerialisoutsidethespecifiedtemperaturerangeandNOTmonitored InaccurateviscosityreadingsPooratomizationPoororexcessivecoatingflowout Pretreatment Degrease IPAorrecommendsolventaccordingtosubstratematerial Dustfree AirflowandelectrostaticDrythesubstrateBeforecoated thesurfaceshouldbecleaninganddryWhenonlinepriortopainting de ionizeairblowofftoeliminatestaticchargeonsurface 在線上噴涂前 用靜電刀除塵 Cleaning Beforeusing allequipmentshouldbeclean Besidefornormalrinsesolvent paintreducerisgenerallyagoodsolventforflushingpriortoloadingcoating Afterusing allequipmentshouldbecleanimmediately Avoidcontaminationofmaterialswhenswitchingbetweenmaterials 在轉換材料時 避免材料污染 PaintSupplyingRoom PaintpotcleaningandsystemflushTemp andHumiditycontrolinroom室內溫 濕度管制Safetyforpressurepot壓力罐安全性Viscosityinspectionregularly Painting 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 Painting Paintingshouldbeseparatedfrommoldingarea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 AirSprayBasics Atomization 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 HVLP Advantages HightransferefficiencyLessoversprayBoothmaintenance無塵室防護Materialcosts成本Wastedisposal報廢處理 Disadvantages SlowerproductionratesNotallmaterialsbreakupwell i e highsolids PaintingProcess Atomization 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 Atomization Definedasthebreakingupofpaintintotinydropletstoformamistfromaliquid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 ProblemswithAtomization AtomizingAirtooHigh 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 FluidDelivery Definedastheamountofmaterial 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 ProblemswithFluidDelivery FluidDeliverytooHigh RunsorSagsSolventPopping溶劑揮發Mottling metallics砂粒Highfilmbuilds薄膜太厚OrangePeel橘子皮 FluidDeliverytooLow DrysprayLowfilmbuildsPoorHiding Adjustments SystemAdjustments 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 Adjustments PatternAdjustingValve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 Adjustments FluidatGunAdjustment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 FilmBuild Definedastheamountofmaterialleftonasurfaceafterthesolventhasevaporated Measuredinmilsormicrons 測量精度千分之一或微米Wetmils atapplicationDrymils afterovencure Filmbuildisaffectedby AtomizingairFluiddeliveryViscosityofPaintOperatorTechnique linespeedvsspraygunsetup ProblemswithFilmBuild DryFilmBuildtooHigh 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 30um Bake60 x20 30mins Packing flash5min Coolingtoroomtemp XPM21330 980 35239 M850 59572 Monocoat Hardener Thinner 4 1 1 5 2 byweight Viscosity 9 13sec IWATA 25 EH 2002 8 Dell IonSilverXPM21332MonocoatOperationInstruction Substrate Plastic Pretreatment Degrease removedust IonSilverSpray4coatsDFT 20 30um Bake60 x20 30mins Packing flash5min Coolingtoroomtemp XPM21332 980 35239 M850 59572 Monocoat Hardener Thinner 4 1 1 5 2 byweight Viscosity 12 14sec IWATA 25 EH 2002 8 Baking OvensettingpointLinespeedBakingtimeBoxovenTimebetweenlineovenandboxoven Reworking PartsneedtobesandedandthenIPAwiped 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 SafetyInPaintSprayingOperations GeneralSafetyConsiderations一般安全性考慮事項Bonding Grounding粘合 接地 PressurizedEquipment Guns 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 PressurizedEquipment Air 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 PressurizedEquipment PressurePot 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 Explosion PotentialCausesOfFire 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 Explosion STATICELECTRICITY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 Grounding Definitions定義Bonding Theconnectionoftwo 2 ormoreconductiveobjectstogetherbymeansofaconductor wire 匯接各條傳導線經一主導體接Grounding Theconnect