ASTM C356-2010 预成型高温热绝缘材料在均热加热情况下的线性收缩的标准试验方法
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【英文标准名称】:StandardTestMethodforLinearShrinkageofPreformedHigh-TemperatureThermalInsulationSubjectedtoSoakingHeat
【原文标准名称】:预成型高温热绝缘材料在均热加热情况下的线性收缩的标准试验方法
【标准号】:ASTMC356-2010
【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】:C16.31
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:hightemperatureinsulation;linearchanges;linearity;preformedthermalinsulation;shrinkage;soakingheattest;High-temperaturethermalinsulation;Linearchanges/linearity;Preformedthermalinsulation;Shrinkage;Soaktesting
【摘要】:Linearshrinkage,asusedinthistestmethod,referstothechangeinlineardimensionsthathasoccurredintestspecimensaftertheyhavebeensubjectedtosoakingheatforaperiodof24handthencooledtoroomtemperature.Mostinsulatingmaterialswillbegintoshrinkatsomedefinitetemperature.Usuallytheamountofshrinkageincreasesasthetemperatureofexposurebecomeshigher.Eventuallyatemperaturewillbereachedatwhichtheshrinkagebecomesexcessive.Withexcessiveshrinkage,theinsulatingmaterialhasdefinitelyexceededitsusefultemperaturelimit.Whenaninsulatingmaterialisappliedtoahotsurface,theshrinkagewillbegreatestonthehotface.Thedifferentialshrinkagewhichresultsbetweenthehotterandthecoolersurfacesoftenintroducesstrainsandmaycausetheinsulationtowarp.Highshrinkagemaycauseexcessivewarpageandtherebymayinducecracking,bothofwhichareundesirable.Highshrinkagemayalsoopengapsattheinsulationjointstoanexcessiveextentrenderingtheapplicationlessefficientandmorehazardous.Inordertopredictthelimitofpermissibleshrinkageinservice,thedegreeoflinearshrinkagetobetoleratedbyspecimensofaninsulatingmaterialwhensubjectedtosoakingheatmustbedeterminedfromexperience.Itisrecognizedthatafixedrelationbetweenlinearshrinkageundersoakingheatandactualshrinkageinservicecannotbeestablishedfordifferenttypesofinsulatingmaterials.Generallytheamountofshrinkageincreaseswithtimeofexposure.Theamountandrateofincreasevariesfromonematerialtoanother.Inaddition,thevarioustypesofmaterialsmayhavedifferentamountsofmaximumpermissibleshrinkage.Therefore,eachproductmustdefineitsownspecificlimitsoflinearshrinkageundersoakingheat.1.1Thistestmethodcoversthedeterminationoftheamountoflinearshrinkageandotherchangesthatoccurwhenapreformedthermalinsulatingmaterialisexposedtosoakingheat.Thistestmethodislimitedtopreformedhigh-temperatureinsulationthatisapplicabletohot-sidetemperaturesinexcessof200x00B0;F(93x00B0;C),withtheexceptionofinsulatingfirebrickwhichiscoveredbyTestMethodC210.1.2Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Q25
【国际标准分类号】:81_080
【页数】:3P.;A4
【正文语种】:英语
【原文标准名称】:预成型高温热绝缘材料在均热加热情况下的线性收缩的标准试验方法
【标准号】:ASTMC356-2010
【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】:C16.31
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:hightemperatureinsulation;linearchanges;linearity;preformedthermalinsulation;shrinkage;soakingheattest;High-temperaturethermalinsulation;Linearchanges/linearity;Preformedthermalinsulation;Shrinkage;Soaktesting
【摘要】:Linearshrinkage,asusedinthistestmethod,referstothechangeinlineardimensionsthathasoccurredintestspecimensaftertheyhavebeensubjectedtosoakingheatforaperiodof24handthencooledtoroomtemperature.Mostinsulatingmaterialswillbegintoshrinkatsomedefinitetemperature.Usuallytheamountofshrinkageincreasesasthetemperatureofexposurebecomeshigher.Eventuallyatemperaturewillbereachedatwhichtheshrinkagebecomesexcessive.Withexcessiveshrinkage,theinsulatingmaterialhasdefinitelyexceededitsusefultemperaturelimit.Whenaninsulatingmaterialisappliedtoahotsurface,theshrinkagewillbegreatestonthehotface.Thedifferentialshrinkagewhichresultsbetweenthehotterandthecoolersurfacesoftenintroducesstrainsandmaycausetheinsulationtowarp.Highshrinkagemaycauseexcessivewarpageandtherebymayinducecracking,bothofwhichareundesirable.Highshrinkagemayalsoopengapsattheinsulationjointstoanexcessiveextentrenderingtheapplicationlessefficientandmorehazardous.Inordertopredictthelimitofpermissibleshrinkageinservice,thedegreeoflinearshrinkagetobetoleratedbyspecimensofaninsulatingmaterialwhensubjectedtosoakingheatmustbedeterminedfromexperience.Itisrecognizedthatafixedrelationbetweenlinearshrinkageundersoakingheatandactualshrinkageinservicecannotbeestablishedfordifferenttypesofinsulatingmaterials.Generallytheamountofshrinkageincreaseswithtimeofexposure.Theamountandrateofincreasevariesfromonematerialtoanother.Inaddition,thevarioustypesofmaterialsmayhavedifferentamountsofmaximumpermissibleshrinkage.Therefore,eachproductmustdefineitsownspecificlimitsoflinearshrinkageundersoakingheat.1.1Thistestmethodcoversthedeterminationoftheamountoflinearshrinkageandotherchangesthatoccurwhenapreformedthermalinsulatingmaterialisexposedtosoakingheat.Thistestmethodislimitedtopreformedhigh-temperatureinsulationthatisapplicabletohot-sidetemperaturesinexcessof200x00B0;F(93x00B0;C),withtheexceptionofinsulatingfirebrickwhichiscoveredbyTestMethodC210.1.2Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Q25
【国际标准分类号】:81_080
【页数】:3P.;A4
【正文语种】:英语
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