SIPA设备如何保证瓶坯质量(缺陷、原因、解决方案)

PlasticPackagingSystemsSIPA-Training1HOWTOOBTAINPREFORMQUALITY如何保证瓶坯质量代码瓶坯缺陷原因解决方法P1Diffusedopaqueness放射状不透明C15C29S19S7,seecauses/solut.P8参照原因/解决方案P8P2aAllopaque–threadincluded全部不透明—包括螺纹部分C11C48S12S48P2bAllopaque–threadexcluded全部不透明—螺纹部分除外C35C29S27S21,S7,seecauses/solut.P8参照原因/解决方案P8P3Bentasa“banana”香蕉状弯曲C4C26C17C34C10S25,S3bS22,S14,S39S15S10,S8S24P4Crystallizedintheringunderthethread(supportring)螺口下部结晶（支撑环）C6C7S3b,S40S2P5Crystallizedintheinjectingpoint注塑点结晶C28S20,S9,S18P6aIncompleteinthethread螺口不完整C33C19C27C5C14C13C3C7S24S1S13S3a,S1S15S14S5S2P6bIncompleteinthebody坯体不完整SeeP6aC38SeeP6aS36P7Ofyellowishcolora)all淡黄色整体b)onthebottom底部C8C25C27C30S12,S30S21S30S18bP8Toohot(100÷120°C)过热(100—120度)C32C2C27C34C35C12C31S6S8,S31,S41S30,S19bS8,S10S26S28S6P9Toocold(100°C)过冷(100度)C32bC35C37S6bS27S8PlasticPackagingSystemsSIPA-Training2代码瓶坯缺陷原因解决方法P10Flashonthejointlip-cavity模唇与模腔的合模线有凸起C1C21C36C27C20C2C39S14,S22,S31S3bS3bS13,S18b,S21S22,S31S8S42P11Flashattheedgeofthemouth嘴部边缘有凸起C1C1cC27C21C39S14,S22,S31C43S13,S30S3bS42P12Randomhollowmarks不规则的凹痕C10C15C14C13S24S13,S30S11S11,S15P13Verticalflashinthethread-only1螺口部分有垂直的凸起-只有一个-all-全部C1AsP11S14AsP11P14aOpaquediffusedbubbles不透明散布的气泡C24S12,S34,S19P14bNotopaquediffusedbubbles透明散布的气泡C12S28,S33,S32P15Defectiveinjectionpoint(presenceofflashes,threadsordeformationinthecenter)注塑点欠缺（出现凸起，螺旋或中部变形）C14C13C33&/oC33bC30C38S11S11,S37S25,S24S18,S18bS36P16Threaddeformedorflattened螺口变形或变平C16S29,S31P17aVerticalopaquecontinuousstripe连续的不透明的垂直纹线C30C14S18S11P17bVerticalopaquenotcontinuousstripewithlocalflakes不连续的带有局部薄片的不透明垂直纹线C23S18,S21P18Blackimpurities(spots)黑色杂质（污点）C9C22C23S35S35S30P19Whiteimpurities(spots)白色杂质（污点）C24C23S12,S34S30,S18,S21P20Toomuchacetaldehyde(4-5ppm)乙醛含量过高（4-5ppm）C8C22C12S12,S30,S23S17S28P21Deformedonthetopandbottom顶部及底部变形C44S44P22Totallydeformed整体变形C15C45C46S13S45S46P23Preforminsertedinanother瓶坯插在另一个上C41S47PlasticPackagingSystemsSIPA-Training3代码瓶坯缺陷原因解决方法P24Deformedontheringandmouth环部及嘴部变形C47S29P25Presenceofwaterdrops出现水滴C48S48P26Incompleteperform瓶坯不完整C3S5P27Presenceofformerlyinjectedmaterialinthecavity模腔中出现以前注射的原料C13C14S11S11P28Toolong太长C49S49P29Tooshort太短C50S50P30Scratchesonthethread螺纹有擦痕C51S51Pxx=Preform瓶坯n°xxCxx=Cause原因n°xxSxx=Solution解决方案n°xxPlasticPackagingSystemsSIPA-Training4HOWTOOBTAINPREFORMQUALITY:CAUSES如何保证瓶坯质量：原因编码原因C1Incorrectlipclosureduetomechanicaldefectordamage由于机械错误或损坏导致模唇关闭错误C1bIncorrectlipsupportbarclosurewithcoresupportplate模唇支撑杆及模芯支撑板的错误关闭C1cIncorrectcouplingbetweenlipandcoresupport模唇与模芯支撑的错误连接C2Moldtemperaturetoohigh模具温度过高C3Insufficientinjectorcharge注射器装料不足C4FlexingofinjectioncoreduetotoohighvaluesofPETpressureorPETinjectionspeed由于PET压力过高或者PET注射速度过快导致模芯弯曲C5Injectiontooslow注射过慢C6Injectiontoofastandholdingtimeincorrect注射过快及保压时间错误C7Insufficientairescapeinthelips模唇内气体排出不畅C8Degradedmaterial原料变质C9Presenceofforeignmaterialintheresin树脂中混有异物C10Badlycompactedmaterial严重压实的原料C11Badlydriedmaterial过度干燥的原料C12Highspeedofextruderscrew挤压机螺杆过速C13Needlevalvemovementslowedduetodirtoroilinthesupplyairline由于气路中有油或杂质导致针阀运动过慢C14Needlevalvemovementwithworkingpressurelower6.5÷8bar针阀运动工作气压低于6.5—8barC15Incorrectmelttemperature错误的熔料温度C16Preformnotinsertedcorrectlyonconveyorbelt瓶坯没有正确地插到钢带上C17Waterinmeltduringinjectionstage在注射阶段熔料含水C18Extruderlooppressuretoohigh挤压机压力曲线过高C19Insufficientinjectorpressure注射压力不足C20Incorrectclosingpressureininjectionpress注塑模关闭压力不正确C21Injectionpressure/speedtoohigh注射压力及速度过高PlasticPackagingSystemsSIPA-Training5编码原因C22PoorqualityofPETPET品质不好C23Residualmaterialofthepreviousperform前一个瓶坯剩余残料C24DelayinfusionofthePETchipsintheextruder挤压机中的PET粒子熔化延迟C25Excesstemperatureinthehotchannels热通道温度过高C26Irregularwallthickness(eccentricitymax15hundredths)壁厚不匀（偏心最大15%）C27Melttemperaturetoohigh熔料温度过高C28Meltingsetpointtemperaturetoolow熔化设定温度过低C29Preformtemperaturetoohigh瓶坯温度过高C29bPreformtemperaturetoolow瓶坯温度过低C30Incorrectnozzletemperature注嘴温度错误C31Incorrectcycletime循环时间错误C32Moldmovementcycletimetoolong模具运动循环时间过长C32bMoldmovementcycletimetooshort模具运动循环时间过短C33Injectionandholdingtimetooshort注射及保压时间过短C33bInjectionandholdingtimetoolong注射及保压时间过长C34Coolingtimetooshort冷却时间过短C35Incorrectmoldopeningdelaytime模具打开延迟时间错误C36Injectionspeedtoohigh注射速度过快C37Watertemperaturetoolow水温过低C38Incorrecthotmanifolddecompression热流道泄压错误C39Mechanicaldefectsordamagesintheinjectionmold注塑模机械故障或损坏C40Incorrectpreformtemperature瓶坯温度不对C41Preformnotexpelled瓶坯未排C42Hotmanifoldtemperaturetoohigh热流道温度过高PlasticPackagingSystemsSIPA-Training6C43Insufficientserviceairpressure服务空气压力不足C44Cavitybadlypositioned模腔位置错误C45Corebadlycooled模芯冷却不好C46Incorrecttransferdevicemovement传送装置运动错误C47Preformbadlyinsertedinthecollet瓶坯没有很好的插到辊环上C48Presenceofwater(humidity)inthecavitiesorinthelipsupportbar模腔或模唇支撑杆上有水（湿度）C49Incorrectcavitytemperature模腔温度错误C50Incorrectcoretemperature模芯温度错误C51Roughnessoftheinjectioncore模芯粗糙Cxx=Causen°xxPlasticPackagingSystemsSIPA-Training7HOWTOOBTAINPREFORMQUALITY:SOLUTIONS如何保证瓶坯质量：解决方案代码解决方法S1Increaseinjectionpressure增大注塑压力S2Cleanthelipsexhaustslots清洁模唇排气孔S3aUsethepressureorspeedlevels运用压力或速度水平S3bUsethepressureorsp