b双重卷边金属及塑料容器的密封中英文

双重卷边金属及塑料容器的密封RaymondH.Carroll商业无菌包装食品培训教程UniversityofMarylandCopyright©2010UniversityofMarylandAllRightsReserved

ClosuresForDoubleSeamedMetalandPlasticContainersRaymondH.CarrollCommerciallySterilePackagedFoodsTrainingProgramUniversityofMarylandCopyright©2010UniversityofMarylandAllRightsReserved开孔易拉盖罐

1810年发明了马口铁罐头储存易腐食品

顶和底焊接到圆罐上HoleandCapCan

Tincaninventedin1810topreserveperishablefoodTopandbottomsolderedtocylinder易拉盖罐HoleandCapCan顶开罐焊接边缝

两端有皱纹的，现在称为双重卷边1920年开始取代开孔易拉盖罐OpenTopCan

SolderedsideseamEndscrimpedon--nowcalleddoubleseamingReplacedholeandcapcanby1920现有的双重卷边容器熔接罐

无缝两片罐

全铝罐

塑料罐或碗易拉罐CurrentDoubleSeamContainers

WeldedsideseamcanSeamlesstwo-piececanAllaluminumcanPlasticcanorbowlEasy-openends现今今花花样样繁繁多多的的双双重重卷卷边边金金属属罐罐VarietyofMetalDoubleSeamedCansAvailableToday金属属罐罐生生产产材材料料镀锡锡钢钢板板无锡锡钢钢板板金属属板板阳阳极极特特性性对对双双重重卷卷边边罐罐的的特特性性有有影影响响CanManufacturingPlateTincoatedbasesteelTin-freesteelPlatecharacteristicsaffectdoubleseamcharacteristics容器器结结构构边缘缘：：将将罐罐体体边边缘缘弯弯曲曲形形成成钩钩状状ContainerStructureFlange:Fixedbodyedgethatformsbodyhook容器器结结构构盖卷卷曲曲：：形形成成罐罐盖盖钩钩边边ContainerStructureEndCurl:Formscoverhook密封封剂剂在盖盖的的环环形形槽槽使使用用密密封封剂剂密封剂的的类型取取决于产产品种类类和杀菌菌方法SealingCompoundSealingcompoundappliedtoannulargrooveofcanendCompoundtypedependsonproductandmethodofsterilization双重卷边边由罐体卷卷曲和罐罐盖钩边边链接而而形成罐体卷曲曲和罐盖盖钩边互互相紧扣扣双重卷边边通过两两步操作作完成TheDoubleSeamFormedbyjoiningbodyofcanwithendInterlockofbodyflangeandcurlofendGenerallyformedintwooperations接缝卷拢拢SeamerChuckandRolls头道卷封封罐盖钩边边与罐体体卷曲扣扣在一起起头道卷封封出现的的差错在在后面加加工中不不会被消消除FirstOperationEndcurlisinterlockedwithbodyflangeCannotcorrectfaultyfirstoperationduringremainingsteps头道滚轮轮接缝的质质量受以以下因素素影响：：1.叠接的高高度2.底座的压压力3.滚轮的排排列4.第一步卷卷拢的紧紧密度FirstOperationSeamQualityisaffectedby:1.Pingaugeheight2.Baseplatepressure3.Alignmentofrollstochuck4.Firstoperationrolltightness二道卷封封滚轮比第第一步更更加扁平平挤压预成成型的钩钩以提高高双重卷卷边的紧紧密度SecondOperationRollhasflattercontourthanfirstoperationrollPressespreformedhookstogethertodevelopdoubleseamtightness双重卷边边每个双重重卷边由由以下部部分组成成三层罐盖盖两层罐体体适当的密密封剂双重卷边边形成了了密闭的的封口TheDoubleSeamEachdoubleseamconsistsofthreethicknessesofthecanendtwothicknessesofthecanbodyanappropriatesealingcompounddistributedthroughthefoldedmetalThisformsahermeticseal塑料碗PlasticBowls双重卷边边的结构构通过特定定卷边结结构的评评估对双双重卷边边结构品品质进行行判定封口的说说明由罐罐体和罐罐盖的供供应商提提供最终在拆拆毁卷边边后通过过肉眼观观察做出出判定DoubleSeamStructureQualityjudgedbyevaluationofspecificseamstructuresSeamspecificationsfurnishedbycanandendsupplierFinaljudgmentmadebyvisualinspectionoftorndownseam卷边的测测量埋头度:卷边顶端端至临近近卷边内内壁的肩肩胛所测测得的间间距SeamMeasurementsCountersinkdepth:Seamtoptoendpanel卷边的测测量卷边厚度度:卷封的罐罐盖、罐罐体钩合合后的铁铁皮的最最大厚度度SeamMeasurementsSeamthickness:Distanceacrossseamlayers卷边的测测量卷边的宽宽度:平行于卷卷边身盖盖钩所测测得的二二重卷边边的尺寸寸SeamMeasurementsSeamwidth:Dimensionparalleltoseamlayers卷边的测测量(续)身钩:罐身的翻翻边叠接:卷边内部部身钩和和盖钩间间相互钩钩合重叠叠的部分分SeamMeasurements(continued)Bodyandcoverhook:InternalpartsofseamOverlap:Degreeofinterlockbetweenbodyandcoverhooks紧密度以盖钩的的皱纹程程度来判判断RatingindicatesrelativefreedomfromwrinklesTightnessJudgedbydegreeofwrinklingofcoverhookRatingindicatesrelativefreedomfromwrinkles接合区域双重卷边叠接接水平焊接的的部分焊接罐的最关关键点盖钩垂唇的程程度JunctureAreaWheredoubleseamcrossessideseamMostcriticalpointinsolderedsideseamcansDegreeofdroopincoverhook接缝的组成塑料罐与金属属罐的接缝比比较SeamComponentsPlasticcancomponentscomparabletothoseofthemetalcan双重卷边的危危险性评价一个接缝可能能看似完美，，但内部结构构可能有缺点点，并且没有有达到真空密密封CriticalEvaluationoftheDoubleSeamAseammayappearsatisfactory,butmayhaveafaultyinternalstructureandnohermeticseal.卷边的危险性性评价对偏差进行测测量，评估其其严重性CriticalEvaluationofSeamsExperiencedjudgmentneededtoassessseriousnessofout-of-specificationmeasurements.埋头深度过大大导致盖钩和叠叠接率缩小可能是有底座座压力过大造造成的ExcessiveCountersinkDepthResultsinshortenedcoverhookandoverlapExcessivebaseplatepressureisonepossiblecause头道卷边松弛弛可能会造成盖盖钩和叠接率率不佳可能是由头道道滚轮不合适适造成的LooseFirstOperationSeamMaynotformgoodcoverhookandoverlapCausemaybeimpropersettingoffirstoperationseamingroll头道卷边过紧紧导致卷边底部部扁平、锐边边和盖钩不佳佳头道滚轮设置置过紧可能是是原因之一ExcessivelyTight

FirstOperationSeamResultsinflattenedseambottom,sharpseamandpoorcoverhookTightsettingoffirstoperationseamingrollisonepossiblecause身钩过短可能的原因是是:1.升降压力不足足2.Incorrectpinheightsetting顶针高度设置置错误3.滚轮调校错误误ShortBodyHooksPossiblecausesare:1.Insufficientlifterpressure2.Incorrectpinheightsetting3.Wrongseamingrolladjustment身钩过长可能的原因是是:1.升降压力过大大2.Incorrectpinheight顶针高度设置置错误3.罐身翻边时不不恰当LongBodyHooksPossiblecausesare:1.Excessivelifterpressure2.Incorrectpinheight3.Improperlyformedcanflange二道卷边松弛弛金属板叠接没没有被充分压压紧实二道滚轮设置置不当二道滚轮破损损二道滚轮轧槽太宽LooseSecondOperationSeamFoldsofmetalmaynotbepressedtogethertightlyenoughimpropersettingofsecondoperationseamingrollWornsecondoperationseamingrollSecondoperationseamingrollgroovetoowide二道卷边过紧紧可能导致叠接接缩短、锐边边，和/或者内容物从从接缝中溢出ExcessivelyTight

SecondOperationSeamMaycausereductionofoverlap,sharpseamand/orcompoundtosqueezeoutofseam.盖钩短小可能的原因有有:1.头道滚轮松弛弛2.升降压力过大大3.埋头深度过大大ShortCoverHookPossiblecausesinclude:1.Loosefirstoperationroll2.Excessivelifterpressure3.Excessivecountersinkdepth盖钩过长可能的原因是是头道滚轮设设置过紧LongCoverHookPossiblecauseistootightasettingforfirstoperationseamingroll.叠接不充分可能的原因是是:1.罐体边缘不规规则2.钩边不规则3.压盖机调校不不佳InsufficientOverlapPossiblecausesare:1.Irregularcanbodyflanges2.Irregularendcurl3.Poorclosingmachineadjustment结构缺点卷边畸形可能能导致真空密密封失败在观察发现后后，必须立即即采取纠正措措施StructuralDefectsSeamabnormalitiesthatmayresultinlossofhermeticsealCorrectiveactionmustbetakenimmediatelyafterobservation垂唇正常卷边底部部出现有平滑滑的二重卷边边突出部分焊接罐盖钩连连接部分出现现轻微的垂唇唇可能的原因有有几个DroopSmoothprojectionofdoubleseambelowbottomofnormalseamSlightdrooppresentatcoverhookjunctureofsolderedcansSeveralpossiblecauses牙齿原因是盖钩和和身钩叠接不不充分或者没没有叠接“V”型突出物VeeorLipDuetoinsufficientornooverlapofcoverhookwithbodyhook"V"shapeprojection锐边卷边顶部内测测出现锋利刀刀口很容易用手摸摸出来SharpSeamSharpedgeatthetopinsideportionofseamMoreeasilyfeltthanseen快口卷边顶部内内测部位上上的锐边严严重到铁皮皮破裂的程程度可能的原因因有几个Cut-OverSeamwhichissharpenoughtofracturethemetalatthetopinsideportionofseamSeveralpossiblecauses跳封卷边滚轮在在身缝处跳跳动,造成卷边不不紧的缺陷陷重叠时，滚滚轮跳动产产生的缺陷陷JumpedSeamorJump-OverSeamnotrolledtightenoughadjacenttojunctureareaCausedbyjumpingofsealingrollsafterpassingoverlap卷边隆起通常发生在在三片罐和和焊接罐增加端缝的的厚度身钩变形SeamBumpsMostoftenon3-pieceorweldedsideseamcansLocalizedincreaseinpacker'sendseamthicknessDistortedbodyhook卷边隆起(续)可能的原因因:1.Excessivelytightfinishedseams接缝过紧2.身钩过长3.密封剂过多多SeamBumps(continued)Possiblecauses:1.Excessivelytightfinishedseams2.Longbodyhooks3.Excessivesealingcompound滑封卷封时压头头在埋头部部位内滑转转或自转所所造成的不不完全卷边边一个可能的的原因是压压头带油DeadheadorSpinnerIncompleteseamcausedbychuckspinningincountersinkOnepossiblecauseisoilorgreaseonchuck假封盖钩和身钩钩未完全钩钩合的卷边边感观检查有有时难以发发现这一缺缺陷拆开卷边才才能发现假假封FalseSeamSeamwhichisentirelyunhookedNotalwaysdetectablebyvisualexaminationSeamteardownwillreveal假封(续)其他常见术术语:大塌边钩边损毁FalseSeam(continued)Othercommonterms:KnockeddownflangeDamagedendcurl罐体胀裂卷边正常，，但罐体胀胀裂或扭曲曲一个可能的的原因是底底托压力太太大CanBodyBucklingBuckledortwistedconditionunderfinishedseamOnepossiblecauseisexcessivebaseplatepressure罐身外斜罐身不成直直角导致不不平衡罐在生产过过程中存在在瑕疵CockedBodyCanbodyblankoutofsquarecausingunevennessatlapCanmanufacturingdefect装配错误盖子装配错错误在压盖机里里，罐身和和底部校正正不佳MisassemblyReferredtoasmisplacedcoverCanbodyandendimproperlyalignedinclosingmachine卷边碎裂卷边外层有有裂口可能有几个个原因CutSeamOuterlayerofdoubleseamfracturedSeveralpossiblecauses蘑菇形边缘缘过冶成的罐罐边缘导致致身钩过长长可能只有通通过卷边横横截面检查查才能发现现MushroomedFlangeOverformedcanflangeresultinginlongbodyhookMayonlyfindbyexaminationofseamcross-section凸出或凹进进的编码断断裂产品编码处处的金属板板破裂可能的原因因:凸起和凹陷陷字符排列列错误字型支持装装置调整不不当新旧字型混混淆凸起和凹陷陷字型匹配配编码器压力力过大或设设置不当，，造成编码码过深采用喷墨打打码设备可可以避免这这一问题出出现Fractured

Embossed/DebossedCodesResultwhenthemetaloftheendhasbeencutthroughatthecodemarkPossiblybecausedby:MisalignmentofmaleandfemaletypecharactersMisalignmentoftypeholdersIntermixingofnewandoldtypesImpropermatchingofmaleandfemaletypeExcessivecoderpressureorimpropercodersettinggivingtoodeepacodemarkTheuseofaninkjetcodingsystemhaseliminatethisconcernBrokenChuck压头损毁压头部分边边缘损毁卷边松弛造成压头损损毁的原因因很多BrokenChuckPortionofchucklipmissingLooseseamatthatpointSeveralpossiblecausesofchuckdamage双重卷边完完整性评估估检查应该由由训练有素素的技师执执行检查应该包包括感官和和解剖检查查两部分Evaluationof

DoubleSeamIntegrityInspectionsshallbeperformedbytrainedclosuretechnicianInspectionsshallincludevisualandteardownexaminations感官检验封罐机前端端都应有感感官检验检验外部特特征是否有有粗糙的瑕瑕疵VisualExaminationsRequiredforeachclosingmachineheadExternalfeaturesshallbeexaminedforgrossdefect感官检查(续)根据必要情情况，经常常进行感官官检查两次检查间间隔不要超超过30分钟在罐和底部部类型改变变时，应该该进行感官官检查VisualExaminations(continued)ShallbemadeasoftenasnecessaryShouldbemadeatintervalsnottoexceed30minutesShouldbemadefollowingchangeofcanorendtype解剖检查工具卷边测微器器TeardownExaminationToolsSeammicrometer解剖检查工具埋头度测量量仪TeardownExaminationToolsCountersinkgauge解剖检查工具起罐器TeardownExaminationToolsCanopener解剖检查工具镊钳TeardownExaminationToolsNippersOptionalTools可选择的其其它工具Seamsaw-cutscross-section卷边横截面面切割仪OptionalToolsSeamsaw-cutscross-sectionOptionalTools可选择的其其它工具投影仪-在检查叠接接率是非常常有效OptionalToolsSeamprojector-veryeffectivefordeterminingoverlapOptionalTools可选择的其其它工具卷边观测仪仪OptionalToolsSeamscope-forlookingatseamcross-section解剖频率每个卷边封封头至少检检验一个罐罐解剖频率应应能准确了了解卷边的的完整性情情况两次检查时时间间隔应应不超过4小时应记录结果果和纠偏措措施TeardownFrequencyShallbemadeonatleastonecanperseamingheadFrequencyshallensuresealintegrityShouldbemadeatintervalsnottoexceed4hoursShallrecordresultsandcorrectiveactions何时进行行解剖检检验生产开始始前在发生严严重故障障后立即即进行封口机调调校或改改变后应应进行解解剖检验验WhentoPerformTeardownsBeginningofproductionImmediatelyafterseverejamAfteradjustmentsorchangestoseamingmachine必须的测测量设备备测微器体体系光学体系系RequiredMeasurementsMicrometersystemOpticalsystemMicrometerMeasurementSystem测微器测测量体系系三个测量量点以120度左右的的角度切切，不要要相互接接触用以检验验盖钩、、身钩、、宽度、、紧密度度、厚度度和接缝缝盖钩完完整率MicrometerMeasurementSystemThreemeasurementsaremadeatpointsapproximately120degreesapart,excludingjunctureCoverhook,bodyhook,width,tightness,thickness,juncturerating(USDA)required解剖检验验和步骤骤测微器方方法TeardownMeasurementsandProceduresMicrometermethod解剖双重重卷边TearingDowntheDoubleSeam解剖盖钩钩DisengagingtheCoverHook光学检验验体系至少要有有两个检检验部位位(USDA)用以检验验身钩、、迭接率率、紧密密度、厚厚度和接接缝盖钩钩完整率率OpticalMeasurementSystemCutsshouldbefromatleasttwodifferentlocationsRequiredtomeasurebodyhook,overlap,tightness,thicknessandjuncturerating(USDA)解剖检验验步骤1.可以先外外部检验验(卷边宽度度、厚度度和埋头头度)，之后2.内部检验验盖钩、、身钩、、紧密度度、接缝缝盖钩完完整率和和受压隆隆起TeardownMeasurementProcedure1.Applicableexternalmeasurement(seamwidth,thickness,countersink)followedby2.Internalmeasurements(bodyandcoverhooks,tightnessandjunctureratings,pressureridge)强度和接缝盖钩钩完整率率应该检测测盖钩的的紧密度度和起皱皱率接缝盖钩钩完整率率显示了了盖钩有有效叠接接的情况况TightnessandJunctureRatingCoverhookshouldbeexaminedfortightnessorwrinkleratingJunctureratingindicatespercentageofcoverhookavailableforoverlap受压隆起起在二道滚滚边过程程中，为为了卷边边紧密度度而在罐罐身上形形成的压压痕PressureRidgeThepressureridgeisanimpressiononthebodywallastheresultofthepressureappliedbythesecondoperationrollincreatingseamtightness双重卷边边塑料罐罐的检验验程序EvaluationProceduresforDoubleSeamedPlasticContainers紧密度塑料成分分在双重重卷边的的压紧情情况检验方法法不同容器供应应商应推推荐检验验方法TightnessCompressionofplasticcomponentsindoubleseamDifferentmethodsforevaluationPackagesupplierwillrecommendmethod检验结果果的说明明如果结果果不令人人满意，，重新取取