【英文标准名称】:Materialsforprintedboardsandotherinterconnectingstructures-Part4-14:Sectionalspecificationsetforprepregmaterials,unclad(forthemanufactureofmultilayerboards)-EpoxidewovenE-glassprepregofdefinedflammability(verticalburningte
【原文标准名称】:印制板和其它互连结构用材料.第4-14部分:非包被预浸处理材料分规范集(多层板的生产).阻燃型(垂直燃烧试验)卤化编织E.玻璃环氧预浸料坯
【标准号】:EN61249-4-14-2009
【标准状态】:现行
【国别】:
【发布日期】:2009-12
【实施或试行日期】:2009-12-01
【发布单位】:欧洲标准学会(EN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:Basematerials;Burningtests;Combustibility;Combustibilitytests;Conductivematerials;Conductivity;Dimensions;E-glass;Electricconductors;Electricalengineering;Electronicequipmentandcomponents;Epoxides;Epoxyresins;Flexiblematerials;Glassfabrics;Inspection;Interconnectionstructures;Laminatedsheets;Laminates;Leadfree;Materials;Multilayerprintedboards;Orderindications;Packages;Panels;Prepreg;Printedcircuits;Printed-circuitboards;Properties;Qualityassurance;Sectionalspecification;Sheets;Slabconstruction;Specification(approval);Testing
【摘要】:
【中国标准分类号】:L30
【国际标准分类号】:31_180
【页数】:15P.;A4
【正文语种】:英语


【英文标准名称】:Mechanicalpropertiesoffasteners.Nutswithspecifiedproofloadvalues.Finepitchthread
【原文标准名称】:紧固件的机械特性.具有规定检验荷载值的螺母.细牙螺纹
【标准号】:BSENISO898-6-1996
【标准状态】:作废
【国别】:英国
【发布日期】:1996-04-15
【实施或试行日期】:1996-04-15
【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】:弹性极限应力;内螺纹紧固件;检验荷载;损坏;直径;六角头紧固件;螺距;螺纹紧固件;紧固件;硬度试验;试验条件;钢;作标记;硬度;名称与符号;螺母;等级(质量);化学成分;机械试验;非合金钢
【英文主题词】:Alloysteels;Chemicalcomposition;Close-fitthreads;Designations;Diameter;Failure(mechanical);Fasteners;Finepitch;Force;Grades(quality);Hardness;Hardnesstesting;Hexagonal-headfasteners;Internal-threadfasteners;Marking;Materials;Materialsspecification;Mechanicalproperties;Mechanicalpropertiesofmaterials;Mechanicaltesting;Nuts;Proofloading;Proofstress;Properties;Specification;Specification(approval);Steels;Strengthofmaterials;Testforces;Testing;Testingconditions;Threadpitch;Threadedfasteners;Threads;Unalloyedsteels
【摘要】:ThispartofISO898specifiesthemechanicalproper-tiesofnutswithspecifiedproofloadvalueswhentestedatanambienttemperaturerangeof+10℃to+35℃.Mechanicalandphysicalpropertieswillvarywithrespecttotemperatureandpropertyclass.ProductsconformingtotherequirementsofthispartofISO898areevaluatedonlyattheambienttem-peraturerangeandmaynotretainthespecifiedphysicalpropertiesathigherandlowertemperatures.Attemperatureshigherorlowerthantheambienttemperaturerange,asignificantchangeinpropertiesmayoccur.Whenfastenersaretobeusedaboveorbelowtheambienttemperaturerange,itisthere-sponsibilityoftheusertoensurethatthemechanicalandphysicalpropertiesaresuitableforhisparticularserviceconditions.ThispartofISO898appliestonuts—withnominalthreaddiameters,d,from8mmuptoandincluding39mm(finepitchthread);—oftriangularISOthreadandwithdiametersandpitchesinaccordancewithISO68andISO262(finepitchthread);—withdiameter/pitchcombinationsinaccordancewithISO261(finepitchthread);—withthreadtolerances6HinaccordancewithISO965-1and965-2(seenote2);—withspecificmechanicalrequirements;—withwidthsacrossflatsasspecifiedinISO272;—withnominalheightsgreaterthanorequalto0,5d;—madeofcarbonsteeloralloysteel(seenote1).Itdoesnotapplytonutsrequiringspecialpropertiessuchas—weldability;—prevailingtorqueperformance(seeISO2320);—corrosionresistance(seeISO3506);—abilitytowithstandtemperaturesabove+300℃orbelow-50℃.(However,seenote1.)NOTES1Nutsmadefromfree-cuttingsteelshouldnotbeusedabove+250℃.2Withthreadtolerancesotherorlargerthan6H,ade-creaseinthestrippingstrengthshouldbeconsidered(seetable1).note:1)InISO898:1988,thesymbolDwasused.
【中国标准分类号】:J13
【国际标准分类号】:21_060_20
【页数】:18P.;A4
【正文语种】:英语