GB1239.1-89标准（英文版）

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1、GB1239.1-89.NationalStandardofthePeople’sRepublicofChinaGB1239.1-89SupersedingGB1239-76ColdCoiledHelicalTensionSpringsTechnicalSpecifications1.ContentsandApplicationScopeThisStandardsetsforthtechnicalrequirements,testmethodsandinspectionrulesforordinarycoldcoiledhelicaltensionsprings.Thi

2、sStandardisapplicabletoanycoldcoiledhelicaltensionspring(hereinafterreferredtoasSpring)ofwhichthecross-sectiondiameterisnolessthan0.5mm.ThisStandardisinapplicabletoanyspringwhichhasspecialperformance.2.NormativeReferenceGB1239.5SamplingProceduresforInspectionbyAttributesofCoiledHelicalSp

3、ringsGB1805NomenclatureofSpringsGB2271OilTemperedChromium-vanadiumAlloySteelValveSpringQualityWiresGB3123SiliconBronzeWiresGB3124TinBronzeWiresGB3134Copper-berylliumAlloyWiresGB4357CarbonSpringSteelWiresGB4358PianoWireGB4359OilTemperedCarbonSteelValveSpringQualityWiresGB4360OilTemperedCa

4、rbonSteelSpringWiresGB4361OilTemperedSilicon-manganeseAlloySteelSpringWiresGB4362OilTemperedChromium-siliconAlloySteelValveSpringQualityWiresGB4459.4MechanicalDrawings;ConventionalRepresentationofSpringsYB(T)11StainlessSpringSteelWires3.ProductCategoryAsindicatedinTable1hereof,Springsare

5、dividedintothefollowingcategoriesonthebasisofthestructure.GB1239.1-89Table1CodeSchematicDiagramEndStructureLⅠSemicircularhookLⅡCircularhookLⅢCenteredcircularhookLⅣEccentriccircularhookLⅤSemicircularhookwithlongarmLⅥSmallcircularhookwithlongarmLⅦAdjustablespringGB1239.1-89LⅧTurnablesemici

6、rcularhookoneachendNote:Itisrecommendedtoadopttheendstructuresuchassemicircularhook,circularhookorcenteredcircularhook.1.TechnicalRequirement4.1ProductshallmeettherequirementsasspecifiedinthisStandard,andshallbemanufacturedinaccordancewiththedesigndrawingandtechnicaldocumentswhichhavebee

7、ndulyapproved.4.2ClassofLimitDeviationThereare3classes(class1,class2andclass3)forthelimitdeviationofcharacteristicsandsizeofSpring.4.3SpringCharacteristicsandLimitDeviation4.3.1SpringCharacteristicsSpringcharacteristicsshallbeinconformitytotheprovisionsasspecifiedinArticl