ISO 294-5-2011 塑料.热塑材料试样的注塑.第5部分:各向异性研究用标准样品的制备
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【英文标准名称】:Plastics-Injectionmouldingoftestspecimensofthermoplasticmaterials-Part5:Preparationofstandardspecimensforinvestigatinganisotropy
【原文标准名称】:塑料.热塑材料试样的注塑.第5部分:各向异性研究用标准样品的制备
【标准号】:ISO294-5-2011
【标准状态】:现行
【国别】:国际
【发布日期】:2011-04-15
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/TC61
【标准类型】:()
【标准水平】:()
【中文主题词】:各向异性;测定;喷射铸造法;喷射铸造零件;塑料;生产;特性;试样制备;试件;试样;测试;热塑性聚合物
【英文主题词】:Anisotropy;Determination;Injectionmoulding;Injectionmouldingparts;Plastics;Production;Properties;Specimenpreparation;Testpieces;Testspecimens;Testing;Thermoplasticpolymers
【摘要】:ThispartofISO294specifiesatwo-cavitymould(designatedthetypeFISOmould)fortheinjectionmouldingof80mm?90mmplateswithapreferredthicknessof2mmforsingle-pointdataacquisitionbecause2mmhasbeenfoundtoprovidethemaximumanisotropicproperties,withonlyaslightsensitivitytotherateofinjection.Forthedesignofplasticparts,thiswillprovideupperandlowerboundsforthetensileproperties.Matchingtheplatethicknesstoagivenpartthicknessisnotasuitablecriterionbecauseoftheeffectofmouldfillingrateandpartgeometryonanisotropy.Suitabletestspecimens[ISO527-2type1BAtensiletestspecimensortype1(80mm?10mm)bars]arethenmachinedordie-cutfromtheplates(seeAnnexA)andusedtoobtaininformationontheanisotropyofthermoplasticparts.Investigationoftheanisotropyofmaterialsisaspecialprocedureintendedtoprovideguidanceinthedesignofmouldingsforend-useapplicationsandisnotintendedasaqualitycontroltool.Intheinjectionmouldingofthermoplasticmaterials,theflowofmoltenpolymermayinfluencetheorientationoffillerssuchasfibreglassortheorientationofpolymerchains.Thiscanresultinanisotropicbehaviour.Theknowledgeofanisotropicbehaviourisvaluableindesigningplasticparts.ForthepurposesofthispartofISO294,theflowdirectionisdefinedasthedirectionfromthegatetothefarendofthemouldcavity,andthecrossdirectionasthedirectionperpendiculartotheflowdirection.ThetypeFmouldisnotintendedtoreplacethetypeDmouldusedtodeterminethemouldingshrinkageofthermoplastics.
【中国标准分类号】:G31
【国际标准分类号】:83_080_20
【页数】:14P.;A4
【正文语种】:英语
【原文标准名称】:塑料.热塑材料试样的注塑.第5部分:各向异性研究用标准样品的制备
【标准号】:ISO294-5-2011
【标准状态】:现行
【国别】:国际
【发布日期】:2011-04-15
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/TC61
【标准类型】:()
【标准水平】:()
【中文主题词】:各向异性;测定;喷射铸造法;喷射铸造零件;塑料;生产;特性;试样制备;试件;试样;测试;热塑性聚合物
【英文主题词】:Anisotropy;Determination;Injectionmoulding;Injectionmouldingparts;Plastics;Production;Properties;Specimenpreparation;Testpieces;Testspecimens;Testing;Thermoplasticpolymers
【摘要】:ThispartofISO294specifiesatwo-cavitymould(designatedthetypeFISOmould)fortheinjectionmouldingof80mm?90mmplateswithapreferredthicknessof2mmforsingle-pointdataacquisitionbecause2mmhasbeenfoundtoprovidethemaximumanisotropicproperties,withonlyaslightsensitivitytotherateofinjection.Forthedesignofplasticparts,thiswillprovideupperandlowerboundsforthetensileproperties.Matchingtheplatethicknesstoagivenpartthicknessisnotasuitablecriterionbecauseoftheeffectofmouldfillingrateandpartgeometryonanisotropy.Suitabletestspecimens[ISO527-2type1BAtensiletestspecimensortype1(80mm?10mm)bars]arethenmachinedordie-cutfromtheplates(seeAnnexA)andusedtoobtaininformationontheanisotropyofthermoplasticparts.Investigationoftheanisotropyofmaterialsisaspecialprocedureintendedtoprovideguidanceinthedesignofmouldingsforend-useapplicationsandisnotintendedasaqualitycontroltool.Intheinjectionmouldingofthermoplasticmaterials,theflowofmoltenpolymermayinfluencetheorientationoffillerssuchasfibreglassortheorientationofpolymerchains.Thiscanresultinanisotropicbehaviour.Theknowledgeofanisotropicbehaviourisvaluableindesigningplasticparts.ForthepurposesofthispartofISO294,theflowdirectionisdefinedasthedirectionfromthegatetothefarendofthemouldcavity,andthecrossdirectionasthedirectionperpendiculartotheflowdirection.ThetypeFmouldisnotintendedtoreplacethetypeDmouldusedtodeterminethemouldingshrinkageofthermoplastics.
【中国标准分类号】:G31
【国际标准分类号】:83_080_20
【页数】:14P.;A4
【正文语种】:英语
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