牛奶黑白膜的熱封參數(shù)對(duì)薄膜熱封強(qiáng)度影響的理論與實(shí)驗(yàn)研究.pdf

1、西安理工大學(xué)碩士學(xué)位論文牛奶黑白膜的熱封參數(shù)對(duì)薄膜熱封強(qiáng)度影響的理論與實(shí)驗(yàn)研究姓名：杜玉寶申請(qǐng)學(xué)位級(jí)別：碩士專(zhuān)業(yè)：包裝工程指導(dǎo)教師：駱光林郭彥峰20070301AbstractTitle：THEORETICALANDEXPERIMENlALRESEARCHOFTHEHEATSEALINGPARAMETERSIMPACTSONTHEHEA卜SEALINGSTRENGTHOFBLACKANDWHITEFILMFORMILKPACKAGING

2、Major：PackageEngineeringName：YubaoDUSupervisor：ProfGuanglinLUO(signature)：墮迄墮AssociateprofYanfengGUO(Signature)：AbstractThemilkispopularwiththeconsumerandtheheatsealingtechniqueplaysallimportantroleasthefinalprocedureofm

3、ilkpackagingThequalityofthepackagingwouldbeimprovedifthebestparameteroftheheatsealingtechniquesweredeterminedThispaperaimsatanalyzingeffectivefactorsoftheblack—and—whitefilmformilkpackagingandestablishesthereasonablemath

4、ematicalmodelTheoptimumheat。sealingparametervalueswereobtainedbyusingtheoreticalcalculationandexperimentalanalysisTheresultsshowedthatthemathematicmodelontheheat—sealingpropertiesofplasticfilmWascffectiveFirstly，heat—sea

5、lingprincipleofthepolyethyleneheat—sealingfilmwasanalyzed，andaseriesofheatscalingexperimentswerepcfformedontheblack—andwhitefilmMultiplesinglefactorexperimentsanduniformdesignexperimentscomposethechiefpartofexperimentThe

6、single—factorexperimentswereusedtoanalyzehowsingleexperimentparametervariationaffectstheheatsealingpropertiesThesinglefactorexperimentsconfirmaneffectualrangeofheatsealingparametersforuniformdesignexperimentsSecondlyinor

7、dertofindthebestheatsealingparameters，experimentsusinguniformdesignmethodwerearranged，whichusedquadraticpolynomialregressionanalysisThepaperestablishedanequationoftheheat—sealingstrengthaboutthetemperature，timeandpressur

8、e，andanequationofthehottackaboutthetemperature，time，pressureandcoolingtimewasestablished，tOOThebestproductionparameterforheatsealingstrengthandhottackwereobtainedthroughanalysisoftheequationInordertoverifytheequation，the