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1、钣金喷塑工艺规范（Sheetmetalsprayingprocessspecification）SprayoperationprocessI.PendantInthefirst1.processingcabinetdisplaypredegreasing,degreasingandphosphatingtemperature,coatinglinedisplaycabinettodehydrationdryingandcuringofbakingAfterthetemperature,theoperationbegins.
2、2.checkthehangerstructureisgood,theconductivepartsincontactwiththeworkpieceisgood,evenbadcontactandreplacethedamagedhanger.3.,checktheworkpieceforbumps,scratchesandrust,thequalifiedworkpieceintotheupperpartofthearea.4.usetheclothtocleantheweldingslaganddirtatthebo
3、ttomofthecabinet,soastopreventthesundriesfrombeingbroughtintothenextprocess.5.,theworkpieceshouldbedonetoprotectthestudsorpartswithstudprotectionoradhesivetapepaperprotection.TheoutershellofthecabinetshallbeloadedwithshimsandprotectedbyloadingSet.6.accordingtothed
4、ifferentworkpiecetobehungonchoosingtherighthookhangerhanger;theconveyorchain,confirmthegoodsuspension.7.,theworkpieceshouldbecorrectlycarriedworkpiece,payattentiontosafety,ensurethattheworkpiecehangingpositioniscorrectandhangingreliable,toensurethenormaloperationo
5、ftheconveyorchainStationary.8.pendantscannotoverlap,twoliftingdistanceisnotlessthan300mm,thedistancebetweentheworkpieceisnotlessthan50mm.Two.Pretreatment1.,spraypaintingistheproductafterinspectionqualified,semi-finishedproductssurfacecoverage,rust,corrosionprotect
6、ion,beautifulandbeautiful,andhasFunctionofsign.Priortopaintingandspraying,pretreatmentmustbecarriedout,andnecessaryoverallinspectionshallbemadebeforeprocessingTrim.Fig.2.flowchartofpretreatmentprocess1)degreasing-2)degreasing-3)firstwash-4)secondtimeswaterwashing-
7、5)tableadjustment-6)phosphating-7)Thirdtimeswashing-8)fourthtimeswashing-9)purewaterwashing3.pretreatmentprocessandparametersorderNumberProcessname,processmethod,treatment,liquidtreatmenttime(SEC)HandletemperatureCIntervallengthBeforeLiLiquidzoneTotalleachateareaa
8、ftertreatment1predegreasingspraydegreasingagent>6050-6020004000170077002degreasingspraydegreasingagent>6050-608004000170065003firstwashsprayindustrialwa
