作者:标准资料网 时间:2024-05-28 07:38:17   浏览:8399   来源:标准资料网

【英文标准名称】:StandardTestMethodforDyePenetrationofSolidFiberglassReinforcedPultrudedStock
【原文标准名称】:玻璃纤维增强固态挤拔原料染料渗透的标准试验方法
【标准号】:ASTMD5117-2009
【标准状态】:现行
【国别】:美国
【发布日期】:2009
【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】:D20.18
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:dyepenetrationtest;pultrudedrod;rodstock;wicking;Compositeplasticmaterials/applications;Dyepenetrantinspection;Fiberglass-reinforcedplastics(FRP);Flawdetection;Pultrudedplasticrodstock;Resins;Rodstock;Structuralintegrity;Str
【摘要】:Thistestmethodisusefulforestablishingtheintegrityofcompositerod.Thepresenceofvoids,cracks,andhollowfibersareconsidereddetrimentaltothestructuralintegrityofthecompositeandmaycausereducedelectricalresistanceandincreasedcurrentleakage.Aperfectcompositewouldbeflaw-free,andtherewouldbenopossibilityofwicking.Compositesofthistypearevirtuallynonexistent,astherewilltypicallybeentrappedairintheresindevelopedduringmanufacture,occasionalhollowfibers,andoccasionalcracksduetothermalstresses.Thistestmethodisintendedtoprovideatoolformeasuringtheextentofwickinginacompositeoververyshortlengthsofmaterialforcomparativepurposes.Thepresenceofwickingover1in.(2.54cm)lengthsmaynotnecessarilyimplythatthecompositewillperformunsatisfactorilyforitsintendedend-use.Therefore,interpretationoftestresultsshouldbemadewithcare.Thistestmethodwasdevelopedasatechniqueforestimatingqualityandconsistencyofpultrudedrodandbarstock,whichisacompositeofresinandall-rovingreinforcement.Themanufacturingprocessmayalsoaffectthequalityoftheproduct.Itshouldbeusefulforamanufacturerindeterminingwhetheranygrosschangesinqualityhavetakenplaceduetoprocessorrawmaterialchanges.Sincetheresultsofthistestaresosensitivetosamplesize,penetranttype,penetrantused,viscosity,durationoftest,andotherfactors,noattempttoarriveatorrecommenddevelopmentofaspecificationforthesematerialshasbeenmade.Itissuggestedthatsuchaspecificationshouldbenegotiatedbetweensupplierandenduser.1.1Thisdye-penetranttestmethodcoversameansofevaluatingsolidfiberglassall-rovingreinforcedpultrudedrodorbarstockforlongitudinalwicking.Therearegenerallythreemechanismsthatpromotewicking,anyorallofwhichmaybeoperatingatagiventime.Note18212;Thespecimen''scross-sectionmayreflectdelaminations,longitudinalcontinuousvoids,orthepresenceofhollowfibers,orallthree.Occasionallytheseflawsmaybedetectedbythistest,butothertestsareusuallyrequired.1.2Theresultsofawickingtestaredependentonspecimentypeandsize,penetranttype,timeofexposureinthepenetrant,penetrantviscosity,etc.Anyattempttouseawickingtesttoestablishspecificationcriteriashouldbemadewithgreatcare.1.3ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnonconformancewiththestandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Forspecifichazardstatements,see10.3and10.6.Note28212;ThereisnoknownISOequivalenttothistestmethod.
【中国标准分类号】:Q33
【国际标准分类号】:83_120
【页数】:3P.;A4
【正文语种】:英语