JB/T 6545-2007 全金属弹簧箍六角锁紧螺母
作者:标准资料网
时间:2024-05-15 11:57:41
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来源:标准资料网
基本信息
标准名称: | 全金属弹簧箍六角锁紧螺母 |
英文名称: | Hexagon check nuts with full metal spring ring |
中标分类: |
机械 >>
通用零部件 >>
紧固件 |
ICS分类: |
机械系统和通用件 >>
紧固件 >>
螺母
|
替代情况: | 替代JB/T 6545-1993 |
发布部门: | 中华人民共和国国家发展和改革委员会 |
发布日期: | 2007-03-06 |
实施日期: | 2007-09-01 |
首发日期: | |
作废日期: | |
提出单位: | 中国机械工业联合会 |
归口单位: | 机械工业冶金设备标委会 |
起草单位: | 中信重型机械公司 |
起草人: | 黄丽达、张升奇、杨现利、郭明、王亚东 |
出版社: | 机械工业出版社 |
出版日期: | 2007-09-01 |
页数: | 6页 |
批文号: | 20271-2007 |
书号: | 15111·8350 |
适用范围
本标准规定了螺纹规格为M8~M48全金属弹簧箍六角锁紧螺母的型式尺寸、技术要求和标记示例。本标准适用于性能等级为5、8、10、12级、产品等级为A级(用于D≤M16)、B级(用于D≤M16)的全金属弹簧箍六角锁紧螺母。
前言
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目录
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引用标准
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所属分类: 机械 通用零部件 紧固件 机械系统和通用件 紧固件 螺母
【英文标准名称】:StandardGuideforSelection,Evaluation,andTrainingofObservers
【原文标准名称】:监测员挑选,评价和训练的标准指南
【标准号】:ASTME1499-1997(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】:E12.11
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:
【英文主题词】:appearance;observers;training;visualexamination-color;Appearanceofmaterials;Colorvisiontests;Farnswell-Munsell100huetest;HVCcolorvisionskilltest;Japanesecolordiscriminationtest;Magnitudescalingtests;Observers;Pseudoisochromati
【摘要】:Thetermappearance(see3.2.1)impliestheessentialpresenceofhumanvisualobservations.Theresultsofvisualobservationinvolvenotonlythestepofobserving,accomplishedbytheeye,butalsotheinseparablestepofinterpretationinthebrain.Instrumentaltestmethodscurrentlycannotduplicatethissecondstep,andthereforecannowonlyapproximate,butnotfullymeasure,appearance.Suchinstrumentalmeasuresofappearancepropertiesareusefulonlytotheextentthattheycanbecorrelatedtotheresultsofvisualobservationsbyobserversoftheappearancephenomenabeingevaluated.Almostinvariably,toolittleattentionhasbeenpaidtoensuringthattheessentialvisualobservationshavebeenproperlyobtainedtoprovidethebasisforcorrelatingvisualandinstrumentaltestresults.(Theonlyrecentbookdevotedtovisualmeasurements(1)hasnoindexentryforobserver.)Thisguideprovidesthemeansforassessingobservers,byoutliningtherequirementsandtestsfortheirselection,evaluation,andtraining.Thisguideshouldbeusefultoallexperimentersdesigningorusingvisualtestmethodstoprovideeitherdirectresultsintermsoftheobservationofappearanceproperties,ortheexperimentscorrelatingsuchresultswithinstrumentalmeasuresapproximatingthesameappearanceproperties.1.1Thisguidedescribescriteriaandtestsforselecting,evaluating,andtraininghumanvisual-sensoryobserversfortasksinvolvingtheperceptionandscalingofpropertiesandphenomenarelatingtoappearance.1.2ExamplesoftestsrequiringtheuseoftrainedobserversincludebutarenotlimitedtothosedescribedinthefollowingASTMstandards:oncolor,PracticeD1535andPracticeE1360;oncolordifference,PracticeD1729andTestMethodD2616;ongloss,TestMethodD4449;onmetamerism,PracticeD4086;andonsettingtolerances,PracticeD3134.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:C52
【国际标准分类号】:13_100
【页数】:4P.;A4
【正文语种】:英语
【英文标准名称】:StandardTestMethodforPull-OffAdhesionStrengthofCoatingsonConcreteUsingPortablePull-OffAdhesionTesters
【原文标准名称】:用便携脱开式粘附力测定仪测定混凝土覆层脱粘强度的标准试验方法
【标准号】:ASTMD7234-2005
【标准状态】:现行
【国别】:
【发布日期】:2005
【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】:D01.46
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:粘附;覆层;混凝土;混凝土结构;便携的;脱粘;试验设备;试验
【英文主题词】:adhesion;coatings;concrete;field;paint;portable;pull-offadhesionstrength;tensiletest
【摘要】:Thepull-offadhesionstrengthandmodeoffailureofacoatingfromaconcretesubstrateareimportantperformancepropertiesthatareusedinspecifications.Thistestmethodservesasameansforuniformlypreparingandtestingcoatedsurfaces,andevaluatingandreportingtheresults.Variationsinstrengthresultsobtainedusingdifferentinstruments,differentsubstrates,ordifferentloadingfixtureswiththesamecoatingarepossible.Therefore,itisrecommendedthatthespecifictestinstrumentandloadingfixturebemutuallyagreeduponbetweentheinterestedparties.Thistestmethodshouldnotbeusedtodeterminesurfacestrengthofuncoatedconcrete.TestMethodC1583/C1583Missuitableforthatdetermination.1.1Thistestmethodcoversproceduresforevaluatingthepull-offadhesionstrengthofacoatingonconcrete.Thetestdeterminesthegreatestperpendicularforce(intension)thatasurfaceareacanbearbeforeaplugofmaterialisdetached.Failurewilloccuralongtheweakestplanewithinthesystemcomprisedofthetestfixture,adhesive,coatingsystem,andsubstrate,andwillbeexposedbythefracturesurface.1.2Thistestmethodusesaclassofapparatusknownasportablepull-offadhesiontesters.Theyarecapableofapplyingaconcentricloadandcounterloadtoasinglesurfacesothatcoatingscanbetestedeventhoughonlyonesideisaccessible.Measurementsarelimitedbythestrengthofadhesionbondsbetweentheloadingfixture,coatingsystemandthesubstrateorthecohesivestrengthsoftheadhesive,coatinglayers,andsubstrate.1.3Pull-offadhesionstrengthmeasurementsdependuponbothmaterialandinstrumentalparameters.Therearedifferentinstrumentsusedthatcomplywiththistestmethod.Thespecificinstrumentusedshouldbeidentifiedwhenreportingresults.Thistestisdestructiveandspotrepairsmaybenecessary.1.4ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:P25
【国际标准分类号】:91_080_40
【页数】:8P.;A4
【正文语种】: