Nasıl önlemek için plastik bileşenleri geri çağırır.

Thecomplexityandsizeoftoday'ssupplychaincontributestorecalls, particularlyintheautomotiveindustry. Asthesaying

gider, thesupplychainisonlyasgoodasitsweakestlink. Plasticshavebecomeubiquitousintheautomotiveindustry, olarak

OEMspushtheboundariesofwhat'spossibletomeettheCorporateAverageFuelEconomystandards. Infact, asnotedby

SPI:Theplasticsindustrytradeassociation(Washington,DC), plasticsmakeup50% ofthevolumeofacarbutcontribute

only10% ofthetotalweight.
JeffJansen, SR, ManagingEngineerwiththeMadisonGroup (Madison, WI), aconsultingfirmforpolymersandtheplastics

industryspecializinginfailureanalysisandqualitycontrol (QC), usesavarietyofanalyticalinstrumentationtocharacterize

polymersandplastics. Jansennotedthatfailureanalysis, failurepreventionandmaterialqualificationandevaluationareonun

clients'primaryareasofconcern. Ayrıca, hiscompanyprovidesassistancewithmaterialselectionandpredictionand

processdevelopment, includinghowthemoldingoperationperforms." WeworkpredominantlywithOEMsandmoldersin

termsofprocessdevelopment, "JansentoldPlasticsToday." Iliketoseeapartnershipbetweenthedesigner, moldmakerve

materialspeople. Tohavethematerialselectedinconcretebeforeyougotothemolderandmoldmakerisamistake.We

oftengetinvolvedinacollaborativeefforttohelpselectaresin, andifwe'rehiredbythemolderwehaveexposuretothe

OEM. Ifwe'rehiredbytheOEM, wehaveexposuretotheresinsupplierandthemolder." TheMadisonGroupworkswith

severalmajorindustries, includingmedicalandautomotive. Jansensaidthecomplexitycomeswithgovernmentregulations,

andintheautomotiveindustrytheOEMshavealotofrulesinplace, suchaswhenPPAP [productionpartapprovalprocess]

olayıöğrenirse." Betweencompanyguidelinesandfederalregulationstherecanbequiteafewhurdlestoapprovingamaterial

orimplementinganewmaterial,"Jansennoted.HeaddedthattherearethreemajorareaswheretheMadisonGrouphelps

qualifynewresins:Whenanoldresinisdiscontinued; whenanewproductisbeingdeveloped; andinthecaseoffailure

whenthecompanyidentifiesthataresinisn'trightforanapplication." Itcanbeverydifficulttoselectanewresiniftheone

inuseisbeingdiscontinued, "saidJansen." It'stimesensitive, whichmandatesthatyouneedtomovequicklytogetanew

reçine. Qualifyingaresinforanewproductindevelopmentiseasierbecauseoftenyoudon'thavethetimecrunch." Termo

FisherScientific (Waltham, MA) isamanufacturerofscientificinstrumentsthatincludeinfraredandRamanspectrometers,

rheometers, X-rayphotoelectronspectrometers (XPS), energydispersivex-rayspectrometers (EDS) andscanningelectron

Microscopes(SEM).ThermoFisherScientificinstrumentsareusedinawiderangeofindustries, notjustautomotive,

includingconsumerproducts, yüksek-techelectronicequipment, chemicalsandpharmaceuticals. Thesesystemsareused

arasındamanyapplicationsineverythingfromRandamp; D, productdevelopment, analyticalservicesandqualitycontrol.