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【英文标准名称】:Plastics-Injectionmouldingoftestspecimensofthermoplasticmaterials-Part4:Determinationofmouldingshrinkage
【原文标准名称】:塑料热塑材料试样的注塑第4部分:模塑收缩率的测定
【标准号】:ISO294-4-2001
【标准状态】:现行
【国别】:国际
【发布日期】:2001-12
【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】:注模法;试样;试件;试样制备;收缩特性;处理;收缩;定义;塑料;测定;热塑性聚合物;试验
【英文主题词】:Definitions;Determination;Injectionmoulding;Injectionmouldingmachines;Injectionmoulds;Plastics;Processing;Shrinkage;Shrinkagebehaviour;Specimenpreparation;Testpieces;Testspecimens;Testing;Thermoplasticpolymers;Tools
【摘要】:ThispartofISO294specifiesamethodofdeterminingthemouldingshrinkageandpost-mouldingshrinkageofinjection-mouldedtestspecimensofthermoplasticmaterialinthedirectionsparalleltoandnormaltothedirectionofmeltflow.ForthedeterminationofshrinkageofthermosetsseeISO2577[2].MouldingshrinkageasdefinedinthispartofISO294excludestheeffectsofhumidityuptake.Thisisincludedinpost-mouldingshrinkageandthusintotalshrinkage.Forcaseswhenpost-mouldingshrinkageiscausedbytheuptakeofhumidityonly,seeISO175^.MouldingshrinkageasdefinedinthispartofISO294representstheso-calledfreeshrinkagewithunrestricteddeformationofthecoolingplatesinthemouldduringtheholdperiod.Itmaybeconsideredthereforeasthemaximumvalueofanyrestrictedshrinkage.
【中国标准分类号】:G31
【国际标准分类号】:83_080_20
【页数】:9P;A4
【正文语种】:英语