注塑模的温度调节系统外文文献翻译、注塑射模具外文翻译、中英文翻译

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1、附录外文资料TEMPERATURECONTROLP.H.J.InghamMarketingManager,EurothermLtd,Worthing,Sussex,UKSUMMARYCommercialplasticmaterialsareorganicallybasedandarethereforeheatsensitive.Accuratetemperaturecontrolofmeltprocessessuchasinjectionmouldingisthereforenecessaryifproblemscausedb

2、ythermaldegradationaretobeavoided.Theinjectionmouldingprocessisconsideredformatemperaturecontrolriewpointandsomeofthecontrolmethodsortechniquesaredescribed.sinceitshouldnotbeforgottenthatgoodtemperaturecontrolcanlendtomaterialsandenergysavings.1INTRODUTIONTheinjecti

3、onmouldingprocessisconcernedwiththeefficientconversionofplasticsrawmaterialintomouldedproductofacceptablestandards.Someofthsparameterswhichdetermineacceptabilityareweight,dimensions,colourandstenght,allofwhichcanbeaffectedbytheconditionsunderwhichthematerialisproces

4、sed.Havingestablishedbytheconditionsforthweseparameterssoastodeermineacceptability,limitscanbesetfortheconditionsunderwhichthematerialisprocessed.Oneofthemostimportantparameterscontributingtothecorrectoperationofaninjectionmouldingmachineistemperature.Allplasticsmat

5、erialscanbecorrectlyprocessedonlywithinacertainrangeoftemperatureswhichvariesfrommaterialForsomemateialsandmouldtypesthebandisverysmallandforothersitcanbequitewide.Anyattempttodefinethelimitswithinwhichtheproductisacceptabledeterminestheneedforsomeformofcontrol.Ther

6、eareanumberoftypesofcontrolwhich,ifappliedcorrectly,canleadtoadequateperformance.Significantmaterialandenergysavingscanbeachievedbycorrectlypplyingtherighttypeofcontrolequipment.Thereliabilityofthesystemandthedegreeofoperatorsupervisionrequiredalsodependverylargelyo

7、nthebalancestruckbetweeninitialcostandperformance.Itisthepurposeofthischaptertoexaminetheinjectionmouldingmachinefromatemperaturecontrolviewpointandtooutlinesomeofthecontrolmethodscanbeused,togetherwithadvantagesanddisadvantages.2THEPROCESS2.1MachineZoningFromacontr

8、olviewpoint,aninjectionmouldingmachineconsistsofanumberofzones(eachequippedwithameansofmeasauringthetemperature)andacontroller,whichcompar