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【英文标准名称】:StandardPracticeforInjectionMoldingTestSpecimensofThermoplasticMoldingandExtrusionMaterials
【原文标准名称】:热塑性模塑和挤压材料的注模试样的标准实施规程
【标准号】:ASTMD3641-2010
【标准状态】:现行
【国别】:美国
【发布日期】:2010
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:D20.09
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:injection-molding;molddesign;testspecimenpreparation;thermoplastics;Acetalplastics;Injectionmolding/extrusioncompounds;Molding/extrusioncompounds/materials;PET(poly(ethyleneterephthalate));PMMA(poly(methylmethacrylate));Polyalkylene
【摘要】:Itiswellknownthatplastictestspecimensmoldedunderdifferentconditionscanhavesignificantlydifferentproperties.Thispracticeisdesignedtominimizethosedifferencesbyestablishingoperatingprotocolswithoutbeingunnecessarilyrestrictive.AlwaysrefertotheASTMmaterialspecificationorISOdesignationforthematerialforrecommendedmoldingconditions.Ifnotavailable,consultthematerialsupplier.Thispracticerequirestheuseofadequatequantitiesofplasticmaterialtofinddesirableoperatingconditionsandtomakethedesiredtestspecimens.1.1Thispracticecoversthegeneralprinciplestobefollowedwheninjectionmoldingtestspecimensofthermoplasticmoldingandextrusionmaterials.Thispracticeistobeusedtoobtainuniformityinmethodsofdescribingthevariousstepsoftheinjectionmoldingprocessandtosetupuniformmethodsofreportingtheseconditions.Theexactconditionsrequiredtopreparesuitablespecimenswillvaryforeachplasticmaterial.Thoseconditionsshouldbecomeapartofthespecificationforthematerial,orbeagreeduponbetweenthepurchaserandthesupplier.Anyrequirementsorrecommendationsinthematerialspecificationwhichdifferfromthisstandardtakeprecedenceoverthoseinthisstandard.1.2Themethodologypresentedassumestheuseofreciprocatingscrewinjectionmoldingmachines.1.3ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Note18212;ThispracticeisequivalenttothefollowingpartsofISO294:PlasticsInjectionMouldingofTestSpecimensofThermoplasticMaterials;294-1:Part1GeneralPrinciplesandMultipurposeTestSpecimens(ISOTypeAMould)andBars(ISOTypeBMould);ISO294-2:Part2SmallTensileBars(ISOTypeCMould);ISO294-3:Part3Plates(ISOTypeDMoulds).
【中国标准分类号】:G33
【国际标准分类号】:83_080_20
【页数】:9P.;A4
【正文语种】:英语