DIN 9825 T.2-1987 冲压工具用导柱

作者:标准资料网 时间:2024-05-17 02:41:17   浏览:9312   来源:标准资料网
下载地址: 点击此处下载
【英文标准名称】:Guidepillarsforpresstoolsets
【原文标准名称】:冲压工具用导柱
【标准号】:DIN9825T.2-1987
【标准状态】:作废
【国别】:
【发布日期】:
【实施或试行日期】:
【发布单位】:德国标准化学会(DE-DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:
【中国标准分类号】:
【国际标准分类号】:
【页数】:
【正文语种】:


下载地址: 点击此处下载
【英文标准名称】:StandardPracticeforMakingandUsingU-BendStress-CorrosionTestSpecimens
【原文标准名称】:制作和使用U形弯曲应力腐蚀的标准作法
【标准号】:ASTMG30-1997(2009)
【标准状态】:现行
【国别】:美国
【发布日期】:1997
【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】:G01.06
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:plasticstrain;stress-corrosioncracking;stress-corrosiontestspecimen;U-bends;Corrosion--stress-corrosion;Inspection;Plasticstrains;Specimenpreparation(fortesting)--corrosiontesting;Stresscorrosion;Stresscorrosioncracking(SCC);Stre
【摘要】:TheU-bendspecimenmaybeusedforanymetalalloysufficientlyductiletobeformedintotheU-shapewithoutmechanicallycracking.Thespecimenismosteasilymadefromstriporsheetbutcanbemachinedfromplate,bar,castings,orweldments;wirespecimensmaybeusedalso.SincetheU-bendusuallycontainslargeamountsofelasticandplasticstrain,itprovidesoneofthemostseveretestsavailableforsmooth(asopposedtonotchedorprecracked)stress-corrosiontestspecimens.Thestressconditionsarenotusuallyknownandawiderangeofstressesexistinasinglestressedspecimen.Thespecimenisthereforeunsuitableforstudyingtheeffectsofdifferentappliedstressesonstress-corrosioncrackingorforstudyingvariableswhichhaveonlyaminoreffectoncracking.TheadvantageoftheU-bendspecimenisthatitissimpleandeconomicaltomakeanduse.Itismostusefulfordetectinglargedifferencesbetweenthestress-corrosioncrackingresistanceof(a)differentmetalsinthesameenvironment,(b)onemetalindifferentmetallurgicalconditionsinthesameenvironment,or(c)onemetalinseveralenvironments.1.1ThispracticecoversproceduresformakingandusingU-bendspecimensfortheevaluationofstress-corrosioncrackinginmetals.TheU-bendspecimenisgenerallyarectangularstripwhichisbent180x00B0;aroundapredeterminedradiusandmaintainedinthisconstantstrainconditionduringthestress-corrosiontest.Bendsslightlylessthanorgreaterthan180x00B0;aresometimesused.TypicalU-bendconfigurationsshowingseveraldifferentmethodsofmaintainingtheappliedstressareshowninFig.1.1.2U-bendspecimensusuallycontainbothelasticandplasticstrain.Insomecases(forexample,verythinsheetorsmalldiameterwire)itispossibletoformaU-bendandproduceonlyelasticstrain.However,bent-beam(PracticeG39ordirecttension(PracticeG49))specimensarenormallyusedtostudystress-corrosioncrackingofstriporsheetunderelasticstrainonly.1.3Thispracticeisconcernedonlywiththetestspecimenandnottheenvironmentalaspectsofstress-corrosiontestingwhicharediscussedelsewhere(1)andinPracticesG35,G36,G37,G41,G44,G103andTestMethodG123.1.4ThevaluesstatedinSIunitsaretoberegardedasstandard.Theinch-poundunitsinparenthesesareprovidedforinformation.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.FIG.1TypicalStressedU-bends
【中国标准分类号】:H22
【国际标准分类号】:77_060
【页数】:7P.;A4
【正文语种】:英语


【英文标准名称】:TestMethodforBondStrengthofThermoplasticTrafficMarkingMaterials
【原文标准名称】:热塑性交通标志材料粘合强度的试验方法
【标准号】:ASTMD4796-1988
【标准状态】:现行
【国别】:美国
【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(ASTM)
【起草单位】:ASTM
【标准类型】:()
【标准水平】:()
【中文主题词】:试验;粘结强度;作道路标记;热塑性聚合物
【英文主题词】:thermoplasticpolymers;adhesivestrength;testing;roadmarking
【摘要】:
【中国标准分类号】:R10;G31
【国际标准分类号】:93_080_20
【页数】:4P;A4
【正文语种】:英语