ASTM C448-1988(2006) 工业瓷器瓷漆的耐磨蚀的标准试验方法
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【英文标准名称】:StandardTestMethodsforAbrasionResistanceofPorcelainEnamels
【原文标准名称】:工业瓷器瓷漆的耐磨蚀的标准试验方法
【标准号】:ASTMC448-1988(2006)
【标准状态】:现行
【国别】:
【发布日期】:1988
【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】:B08.12
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:瓷漆;磨蚀;工业瓷器;釉层;覆层;试验
【英文主题词】:
【摘要】:Whenaporcelainenamelisfirstsubjectedtoabrasionofthetypeinvolvedinthesetests,therateofwearorattritionisrelativelylow.Astheenamelissubjectedtocontinuedabrasion,therateofwearincreasesuntilitreachesasteadyvalue.Thereafter,therateofwearremainsalmostconstantuntiltheenamelispenetratedandtheunderlyinggroundcoatormetalexposed.Theabrasionthatoccursduringtheperiodofincreasingrate-of-weightlossisdefinedassurfaceabrasionandresultsinreducedglossandcleanabilitywithhigh-glossenamelsandamodificationofcolor,appearance,orsurfacetexture,orcombinationthereofwithlow-glossenamels.Theabrasionthatoccursduringtheperiodofsteadyrate-of-weightlossisdefinedassubsurfaceabrasionandresultsinthedestructionofthecontinuityofthecoating.Thesetwotypesofabrasionarenotnecessarilyproportional,andsinceitisdesirabletobeabletodeterminetheresistanceofporcelainenameltobothtypesofabrasion,itisnecessarytodealwitheachoneseparately.1.1Thesetestmethodscoverdeterminationoftheresistanceofporcelainenamelstosurfaceabrasionandsubsurfaceabrasion.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Y26
【国际标准分类号】:25_220_50
【页数】:10P.;A4
【正文语种】:
【英文标准名称】:StandardGuideforMaterialPropertiesNeededinEngineeringDesignUsingPlastics
【原文标准名称】:使用塑料的工程设计中所要求的材料特性的标准指南
【标准号】:ASTMD5592-1994(2010)
【标准状态】:现行
【国别】:美国
【发布日期】:1994
【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】:D20.10
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:
【英文主题词】:computeraideddesign(CAD);computeraidedengineering(CAE);engineeringdesign;finiteelementanalysis;manufacturability;plastics;structuralanalysis;CAD/CAMsystems;Computeraideddesign(CAD);Computeraidedengineering(CAE);Engineering
【摘要】:Thisguideisintendedtoserveasareferencetotheplasticscommunityformaterialpropertiesneededinengineeringdesign.Productdatasheetsorproductliteraturetypicallyreportsingle-pointvaluesatambientconditionsandhence,bytheirverynature,areinadequateforengineeringdesignandstructuralanalysisofacomponentorsystem.Adetailedpropertyprofilefortheparticulargradechosenforagivenpartnotonlyenhancestheconfidenceofthedesignengineerbyallowingamorerealisticassessmentofthematerialunderclose-to-actualserviceenvironmentsbutalsomayavoidprematurefailureofthedesignedcomponentandpotentialliabilitylitigationlater.Additionally,itwouldalsoeliminateuseoflargerx201C;designsafetyfactorsx201D;thatresultinx201C;overengineeringx201D;orx201C;overdesign.x201D;Notonlyissuchoverdesignunwarranted,butitaddstothetotalpartcost,resultinginagoodexampleofineffectivedesignwithplasticsandaprimetargetforsubstitutionbyothermaterials.Oneoftheproblemsfacedbydesignengineersisaccesstocomparabledataamongsimilarproductsfromdifferentmaterialsuppliersbecauseofthelackofstandardizedreportingformatintheplasticsindustry.ISO10350.1,ISO11403-1,andISO11403-2areintendedtoaddressthecomparabilityofdataissueonlyasfarassingle-pointandmultipointdataformaterialselection.Thisguideattemptstoserveasameanstostandardizetheformattoreportcomparabledataforengineeringdesign.ItisessentialthatincorporatingstandardizedtestspecimengeometryandspecifictestconditionsasrecommendedinGuideD1999,PracticeD3641,orISO3167andISO294-1areanintegralpartofthedatageneration.1.1Thisguidecoverstheessentialmaterialpropertiesneededfordesigningwithplastics.Itspurposeistoraisetheawarenessoftheplasticscommunityregardingthespecificconsiderationsinvolvedinusingtheappropriatematerialpropertiesindesigncalculations.1.2Thisguideisintendedonlyasaconvenientresourceforengineeringdesign.Itshouldbenotedthatthespecificoperatingconditions(temperature,appliedstressorstrain,environment,etc.andcorrespondingdurationofsuchexposures)couldvarysignificantlyfromoneapplicationtoanother.Itis,therefore,theresponsibilityoftheusertoperformanypertinenttestsunderactualconditionsofusetodeterminethesuitabilityofthematerialintheintendedapplication.1.3TheapplicableISOandASTMstandardmethodsfortherelevantmaterialpropertiesarelistedinthisguideforthebenefitofdesignengineers.1.4Itshouldbenotedthatforsomeofthedesiredproperties,noASTMorISOstandardsexist.TheseincludepvTdata,no-flowtemperature,ejectiontemperature,andfatigueintension.Intheseinstances,relyingonavailabletestmethodsissuggested.1.5ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Note18212;ThereisnosimilarorequivalentISOstandard.
【中国标准分类号】:G31
【国际标准分类号】:83_080_01
【页数】:6P.;A4
【正文语种】:英语