热门站点| 世界资料网 | 专利资料网 | 世界资料网论坛
收藏本站| 设为首页| 首页

BS A 318-1997 带MJ螺纹的高度降低和减缩交叉平面的有槽(槽顶)六角头螺母分类:450MPa(室温)/425℃、600MPa(室温)/235℃、600MPa(室温)/315℃、600MPa(室温)/650℃、900MPa(室温)/235℃、900MPa(室温)/730℃、1100MPa(室温)/600℃.尺寸

作者:标准资料网 时间:2024-05-24 16:04:12  浏览:8975   来源:标准资料网
下载地址: 点击此处下载
【英文标准名称】:Nuts,hexagonal,slotted(castellated),reducedheight,reducedacrossflats,withMJthreads,classifications-450MPa(atambienttemperature)/425°C,600MPa(atambienttemperature)/235°C,600MPa(atambienttemperature)/315°C,600MPa(atambie
【原文标准名称】:带MJ螺纹的高度降低和减缩交叉平面的有槽(槽顶)六角头螺母分类:450MPa(室温)/425℃、600MPa(室温)/235℃、600MPa(室温)/315℃、600MPa(室温)/650℃、900MPa(室温)/235℃、900MPa(室温)/730℃、1100MPa(室温)/600℃.尺寸
【标准号】:BSA318-1997
【标准状态】:现行
【国别】:英国
【发布日期】:1997-11-15
【实施或试行日期】:1997-11-15
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:抗拉应力;螺母;螺纹;紧固件;六角头紧固件;直径;尺寸公差;槽头紧固件;温度;齿形头紧固件;名称与符号;尺寸;螺纹紧固件;飞行器部件
【英文主题词】:Aerospacetransport;Airtransport;Castellated-headfasteners;Dimensionaltolerances;Dimensions;Fasteners;Hexagonnuts;MJ-threads;Nuts
【摘要】:ThisInternationalStandardspecifiesthedimensionsofhexagonslotted(castellated)nuts,reducedheight,reducedacrossflats,withMJthreads,ofclassifications:450MPa/425℃,600MPa/235℃,600MPa/315℃,600MPa/650℃,900MPa/235℃,900MPa/730℃and1100MPa/600℃.ThesenutsareintendedtobeusedwithsplitpinsinconformitywithISO1234.ThisInternationalStandardisonlyapplicableforthecompilationofaerospaceproductstandards.note:1)Correspondstotheminimumtensilestresswhichthenutisabletowithstandatambienttemperaturewithoutbreakingorcrackingwhentestedwithaboltofahigherstrengthclass.2)Maximumtemperaturethatthenutisabletowithstand,withoutpermanentalterationtoitsoriginalcharacteristics,afterambienttemperaturehasbeenrestored.Themaximumtemperatureisconditionedbythematerialorbythesurfacetreatment.
【中国标准分类号】:J13
【国际标准分类号】:49_030_30
【页数】:10P;A4
【正文语种】:英语


下载地址: 点击此处下载
【英文标准名称】:StandardPracticeforAcceleratedTestingforColorStabilityofPlasticsExposedtoIndoorOfficeEnvironments
【原文标准名称】:暴露在室内荧光灯和透窗入室日光下的塑料颜色稳定性加速试验的标准试验方法
【标准号】:ASTMD4674-2002a
【标准状态】:现行
【国别】:
【发布日期】:2002
【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】:D20.50
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:塑料;快速试验;荧光灯;自然采光;彩色稳定性
【英文主题词】:colorchange;color;plastics;officeenvironment;fluorescentlight
【摘要】:Testsconductedinaccordancewiththispracticeareintendedtoinducepropertychangesassociatedwithuseexposuretolightandheatintypicalofficeenvironments.Theseexposuresarenotintendedtosimulatethedeteriorationcausedbylocalizedphenomenasuchashandling,dirtcontamination,etc.Note58212;Caution:Caution:RefertopracticeG151forfullcautionaryguidanceapplicabletoalllaboratoryweatheringdevices.AdditionalinformationonsourcesofvariabilityandonstrategiesforaddressingvariabilitybydesignanddataanalysisoflaboratoryacceleratedexposuretestsisfoundinGuideG141.Variationinresultsmaybeexpectedarepossiblebetweenthedifferentmethodsdescribedinthispractice.Forexample,differencesinspectraldistributionofthelampsusedandvariationsintheirradianceforasingletypeoflampcancausesignificantdifferencesintestresults.Therefore,anynoreferencetotheuseofthispracticeshouldbemadeunlessaccompaniedbyareportpreparedinaccordancewithSection12thatdescribesneedstoincludeareferencetothemethodused.Reproducibilityoftestresultsbetweenlaboratorieshasbeenshowntobegoodwhenthestabilityofmaterialsisevaluatedintermsofperformancerankingcomparedtoothermaterialsortoacontrol.Therefore,exposureofasimilarmaterialofknownperformance(acontrol)atthesametimeasthetestmaterialsisstronglyrecommended.Itisrecommendedthatatleastthreereplicatesofeachmaterialbeexposedtoallowforstatisticalevaluationofresults.1.1Thispracticecoversthebasicprinciplesandoperatingproceduresforusingfluorescentlighttodeterminecolorstabilityofplasticswhenmaterialsareexposedintypicalofficeenvironmentswherefluorescentoverheadlightingandwindow-filtereddaylightareusedforilluminationandwheretemperatureandhumidityconditionsareinaccordancewithAmericanSocietyofHeating,Refrigerating,andAir-conditioningEngineers(ASHRAE)recommendationsforworkers''comfort.Note18212;ThereisnoequivalentISOstandard.1.2Thispracticedescribesfourmethodswherespecimensareexposedtofluorescentlightundercontrolledenvironmentalconditions.TwoofthemethodsuseanexposuredevicethatprovidesformixingoffluorescentlampsandtwoofthemethodsusedevicesthatcomplywithPracticeG154.Note2MethodIusescoolwhitefluorescentlampsandwindowglassfilteredfluorescentUVBlampsandisthesamemethoddescribedinpreviousversionsofthisstandard.1.3SpecimenpreparationandevaluationoftheresultsarecoveredinASTMmethodsorspecificationsforspecificmaterials.GeneralguidanceisgiveninPracticeG151.MorespecificinformationaboutmethodsfordeterminingthechangeinpropertiesafterexposureandreportingtheseresultsisdescribedinPracticeD5870.1.4ThevaluesstatedinSIunitsaretoberegardedasthestandard.1.5Unlessotherwisespecified,alldimensionsarenominal.1.6Thispracticemayinvolvehazardousmaterials,operations,andequipment.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,isany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.SpecificprecautionarystatementsaregiveninSection7.
【中国标准分类号】:G31
【国际标准分类号】:83_080_01
【页数】:8P.;A4
【正文语种】:


【英文标准名称】:ISOSYSTEMOFLIMITSANDFITS.PART2:TABLESOFSTANDARDTOLERANCEGRADESANDLIMITDEVIATIONSFORHOLESANDSHAFTS.
【原文标准名称】:ISO公差和配合体系.第2部分:孔径和轴的标准公差和极限误差等级表
【标准号】:NFE02-100-2-1991
【标准状态】:作废
【国别】:法国
【发布日期】:1991-12
【实施或试行日期】:1991-11-05
【发布单位】:法国标准化协会(AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:轴(旋转);尺寸公差;轴;配合;铰孔;机器零部件;机械零部件;标准公差;尺寸偏差
【英文主题词】:reaming;machinecomponents;mechanicalcomponents;fits;standardtolerances;dimensionaltolerances;dimensionaldeviations;shafts:rotating;shafts(rotating)
【摘要】:
【中国标准分类号】:J04
【国际标准分类号】:
【页数】:43P;A4
【正文语种】:其他



版权声明:所有资料均为作者提供或网友推荐收集整理而来,仅供爱好者学习和研究使用,版权归原作者所有。
如本站内容有侵犯您的合法权益,请和我们取得联系,我们将立即改正或删除。
京ICP备14017250号-1