自攻螺丝自攻螺丝

(4)TorqueStrengthTorqueWrench(0~150kgf)(150~750kgf)购买(150~300kgf)ASMEB18.6.3/FIP1000/SAEJ78,J81,J1237,J933/ISO898-7,ISO2702/DIN7500-1/IFI-1132.TORSIONALSTRENGTHTEST扭强试验FIP1000ApplicableTo:AllTappingScrews.适用范围：所有种类的自攻丝TestPurpose:Todetectpartshavinglowstrengthwhichmighttwistoffduringdrivingorseating.测试目的：为检查件是否因为扭足而在组装或旋紧时扭断.Specification:Seechartsthatfollow.如下图示Apparatusrequired:测试装置AppropriateSplitCollet.适当的夹具ColletHolder.夹具座ScrewTestingFixture.丝测试座TorqueWrench;accuratewith+/-2%.准确在 2%.以内的扭扳手SampleSize(MinimumRecommended):4piecesperlot;lotsizenottoexceed250,000抽样数(建议最少)：每批4支，每批批超过250MPCS.Procedure:测试程序Placethesplitcolletintothecolletholderandscrewthefastenerintothecolletsuchthataminimumof2fullthreadsareinthecolletandaminimumof2threadsareabovethecollet.将丝置入测试夹具中再将夹具放入夹具座，丝至少应有两个完全牙在夹具中，两牙在夹具上方.Placethecolletholderinthescrewtestingfixtureandclampintoplace.将夹具座固定在丝测试座上Applytorquewithatorquewrenchuntiltheparttwistsoff.扭转扳手直到丝扭断Recordfailurevalueandcomparetotherequiredspecification.记录破坏值且与规范值比较Failure:Parttwistsintwoatlessthanspecifiedminimum.失效：丝扭断值小於规范值PossibleFailureCauses:失效可能因素CoreHardnesstoolow.心部硬 太低CaseHardnesstoolow.表面硬 太低CaseHardnesstooshallow.有效渗碳层足Minordiametertoosmall.最小径(牙底径)太小ASMEB18・6・320134・11・3TorsionalStrengthTestScrewsshallbesecurelyclampedbysuitablemeans,suchthattheclampedportionthreadsarenotdamagedandthatatleasttwofullthreadsprojectabovetheclampingdevice,andthatatleasttwofullthreadsexclusiveofpoint,flutes,orendslot,areheldwithintheclampingdevice.（Ablindholemaybeusedinplaceofathreadedclampingdevice,providedtheholedepthsissuchastoinsurethatbreakagewilloccurbeyondthepointorthefulllengthoftheflutesorendslot）.Bymeansofasuitablycalibratedtorquemeasuringdevice,torqueshallbeappliedtothescrewuntilfailureoccurs.ThetorquerequiredtocausefailureshallnolessthantheminimumvaluegiveninTable50forthetypeandsizeofscrewbeingtested.AtypicalfixtureforconductingtorsionalstrengthtestsontappingscrewsisdepictedinFig.4.扭强测试 丝应以适当的方式安全的夹於一相配合的分离盲孔或其他装置中以防止所夹紧的纹致损毁，并且由至少2全牙於夹具上至少2全牙（包括尾端、割尾、或凹槽）握於夹具之中。（盲孔可以取代纹夹具，其孔深应能保证丝会在尾端、割尾全长或尖尾位置断 ）以一校正过且适当的扭浏设备，测试直到断为止，当断时的扭应可小於表 50之最小值。典型的扭强测试设备请参考图4。图4■扭强测试参考图表50—自长丝之扭强要求丝规格最小扭强,lb-in.TypeATypeAB,B,BF,BP,BTTypeC,D,F,G,TTypeTRS粗牙细牙粗牙细牙#244566#39991010#41213131514#51818182022#62424232724#73030 #83939424748#10485656746574#1283889310893#141251/4142140179156#16152#181965/16290306370330#20250#244923/85905607106007/166207008208401/2102010751285108020003.3TorsionalStrengthTestforAllTypesofScrews.Theshankofthesamplescrew(coatedoruncoated,asreceived)shallbesecurelyclampedinamating,split,blindholedie(seeFig.1),orotherequivalentmeans,suchthatthefollowingrequirementsaremet:所有类型之丝的扭强测试 ：将丝 (接收时有涂层或无涂层)的杆部安全的夹在一个相配合的分离盲孔模具(参阅图1)，或其他相同装置中，并满足下规定：theclampedportionofthethreadsisnotdamaged被夹部位的纹能损伤atleasttwofull-formthreadsprojectabovetheclampingdevice至少2全牙突出於夹具上方atleasttwofull-formthreadsexclusiveofthepointtaperortheflutesareheldwithintheclampingdevice(ablindholemaybeusedinplaceoftheclampingdevice,providedtheholedepthensuresthatscrewbreakagewilloccurbeyondthepointtaperorthefulllengthoftheflutes)至少2全牙(包括尾端、割尾、或凹槽片在夹具之中。(盲孔可以取代夹紧装置，其孔深应能保证丝会在尾端、割尾全长或尖尾位置断)Bymeansofasuitablycalibratedtorque-measuringdevice,torqueshallbeappliedtothescrewuntilfailureoccurs.ThetorquerequiredtocausefailureshallequalorexceedtheminimumvaluespecifiedinTable4forthetypeandsizeofscrewbeingtested.以一校正过之适当的扭浏设备，测试丝直到产生断。当断时的扭应可小於表 4规定之最小值。FIG.1TYPICALTORSIONALSTRENGTHTESTFIXTURE表4—自长丝之扭强要求TypeAB,B,BF,BT丝TypeD,F,T丝丝规格扭,Nm丝规格扭,Nm2.2X0.80.4M2xxX1.32.7M3x0.52.04.2x1.44.4M3.5xx1.66.3M4xx1.89.9M5xx1.816M6x1168x2.133M8x1.25409.5x2.167M10x1.578SAEJ78-2013SteelSelf-DrillingTappingScrews钢铁自钻丝(IFI113与SAEJ78完全相同)5.1TorsionalStrength—ScrewsshallnotfailwiththeapplicationofatorquelessthanthetorsionalstrengthtorquespecifiedinTable5,whentestedinaccordancewith5.1.1.扭强：当依据5.1.1段所述测试时，丝扭断时的扭强应能小於表 5所的数值。5.1.1TORSIONALSTRENGTHTEST—Thesamplescrewshallbesecurelyclampedbysuitablemeans（Figure5）suchthatthethreadsintheclampedlengtharenotdamaged,andthatatleasttwofullthreadsprojectabovetheclampingdevice,andthatatleasttwofullthreadsexclusiveofpoint,flutes,orthreadcuttingslot,areheldwithintheclampingdevice.Bymeansofasuitablycalibratedtorquemeasuringdevice,torqueshallbeappliedtothescrewuntilfailureofthescrewoccurs.Thetorquerequiredtocausefailureshallberecordedasthetorsionalstrengthtorque.扭强测试：丝样品应安全的被夹紧於适当的夹座（图5）以防止丝夹紧长部位的纹损伤，并且由至少2个全牙於夹具上，至少2个全牙握於夹具之中但包括尾端、凹槽、或割海纹在内。以-校正过适合的扭设备汛再直到断，断时所记录的扭就是拒强扭。表5—TypeBSD与TypeCSD自钻丝的机械性与功能性要求公称丝尺寸最小扭强,lb-inTypeBSD（宽牙）TypeCSD（机械牙）#41414#62424#84248#106165#12921001/4150156SAEJ81-2012ThreadRollingScrews,滚牙丝3.3.3TORSIONALSTRENGTH—ScrewsshallnotfailwiththeapplicationofatorquelessthanthetorsionalstrengthtorquespecifiedinTables5Aand5B,whentestedinaccordancewith4.5.扭强 ：依据4.5段所述测试时，丝扭断时的扭强能小於表 5所的数值。4.5TorsionalStrengthTest—Thesamplescrewshallbesecurelyclampedbysuitablemeans（Figure2）suchthatthethreadsintheclampedlengtharenotdamaged,andthatatleasttwofullthreadsprojectabovetheclampingdevice,andthatatleasttwofullthreadsexclusiveofpoint（2to31/2threadpitches）areheldwithintheclampingdevice.Ablindholemaybeusedinplaceofathreadedclampingdevice,providedtheholedepthsissuchastoinsurethatbreakagewilloccurbeyondthepoint（2to31/2threadpitches）.Bymeansofasuitablycalibratedtorque-measuringdevice,torqueshallbeappliedtothescrewuntilfailureofthescrewoccurs.Thetorquerequiredtocausefailureshallberecordedasthetorsionalstrengthtorque.扭断强测试 ：丝样品应以适当的方式目的夹紧 （图2）以防止在夹具中的纹被损伤，并且出至少2个完全牙在夹具上，以及至少2个完全牙（包括2-3.5P的尾端在内）握於夹具之中。一种盲孔可以使用来取代纹夹具，所提供之孔深需能确保断会产生在尾端 （2-3.5P）处。以一支校正过的适当扭设备测试直到断。失效的扭应被记录并作为扭断强扭。4.10TorqueWrenche—Torquewrenchesusedinalltestsshallbeaccuratewithin±2%ofthemaximumofthespecifiedtorquerangeofthewrench.Alternatively,atorque-sensingpowerdeviceofequivalentaccuracymaybeused.扭扳手 ：测试时使用的所有扭捉手，其准确应在捉手最大扭范围的 ±2%之内。此外拥有相同准确的扭感应动装置也可被使用。表5—纹滚牙丝的牝械性能与功能性要求丝规格最小扭强

in-lb2-5663-48104-40145-40226-32248-324810-24651/4-201565/16-183303/8-166007/16-148401/2-131080SAEJ933-2013MechanicalandQualityRequirementsforTappingScrews自长丝的机械性与品质要求3・3TorsionalStrengthTest—Shankofsamplescrew(coatedoruncoated,asreceived)shallbesecurelyclampedinamating,split,blind-holedie(Figure1)orothermeans,suchthattheclampedportionofthethreadsisnotdamagedandatleasttwofullthreadsprojectabovetheclampingdeviceandatleasttwofullformthreadsexclusiveofpoint,flute(s),orendslotareheldwithintheclampingdevice.(Ablindholemaybeusedinplaceoftheclampingdevice,providingtheholedepthissuchastoinsurethatthebreakagewilloccurbeyondthepoint,orthefulllengthoftheflute(s)orendslot.)Bymeansofasuitablycalibratedtorquemeasuringdevice,applytorquetothescrewuntilfailureoccurs.ThetorquerequiredtocausefailureshallequalorexceedtheminimumvalueshowninTable2forthetypeandsizeofscrewbeingtested.扭强测试丝样异的杆部(接收时是电镀或未电镀)应被稳固的夹於-相配合的分开盲孔中(图1)或用其他方式，使被夹紧的纹部分受到损伤，并且由至少2个全牙於夹具上及至少2个全牙(包括尾端、割尾或末端)握於夹具之中。(一种盲孔可以用来取代夹具，其孔深应能保证丝会在尾端、割尾全长、或尖尾位置断)。以一支校正过且适当的扭浏设备，施加扭於丝」直到断为止，断时的扭应等於或大於表2所的最小值。表2—自长丝的最小扭强要求丝规格最小扭强， lb-inTypeATypeAB,B,BF,BG,BP和BTTypeCTypeC,D,F,G,T粗牙细牙粗牙细牙No.2445656No.399910910No.4121313151315No.5181818201820No.6242423272327No.73030----No.8393942474247

No.10485656745674No.1283889310893108No.14125-----1/4-142140179140179No.16152-----No.18196-----5/16-290306370306370No.20250-----No.24492-----3/8-5905607105607107/16------1/2------SAEJ1237-2001MetricThreadRollingScrews公制纹滚牙丝3.5.3TORSIONALSTRENGTH—Type2?screwsshallnotfailwiththeapplicationofatorquelessthanthetorsionalstrengthtorquespecifiedinTable6whentestedinaccordancewith4.5.扭强：当依据4.5段测试时，Type2?丝扭断时的扭强应能小於表 6所的数值。表6-Type2?纹滚成丝的机械性要求丝规格最小扭强 N.mM2xM3x0.52.2M3.5X0.63.5M4x0.75.2M5x0.810.5M6x1.017.7M8x1.2543.0M10x1.587.0M12x1.75152.04・5TorsionalStrengthTest——Thesamplescrewshallbesecurelyclampedbysuitablemeans(Figure3)suchthatthethreadsintheclampedlengtharenotdamaged,andthatatleasttwofullthreadsprojectabovetheclampingdevice,andthatatleasttwofullthreadsexclusiveofpoint(2to3.5threadpitches)areheldwithintheclampingdevice.Ablindholemaybeusedinplaceofathreadedclampingdevice,providedtheholedepthissuchastoinsurethatbreakagewilloccurbeyondthepoint(2to3.5threadpitches).Bymeansofasuitablycalibratedtorquemeasuringdevice,torqueshallbeappliedtothescrewuntilfailureofthescrewoccurs.Thetorquerequiredtocausefailureshallberecordedasthetorsionalstrengthtorque.扭强测试：丝样品应安全的被夹紧於适当的夹座(图3)以防止被夹紧处的纹会损伤，并且由至少2个全牙於夹具上，至少2个全牙(包括尾端在内的2到3.5个牙距)握於夹具之中。盲孔可以取代纹夹具，所提供之孔深能确保在尾端之修（2到3.5牙距）断。以-校正过适合的扭矩具测试直到断，当断时所记录的扭矩就是扭强扭矩。ISO2702-2011Heat-treatedsteeltappingscrews-Mechanicalproperties热处钢制自长丝之机械性质4・2・2Torsionalstrength.Tappingscrewsshallhaveatorsionalstrengthsuchthatthetorquenecessarytocausefailure,whentestedinaccordancewith6.2.2,shallequalorexceedtheminimumtorquevaluesgivenintable3fortheapplicablescrewthreads.扭强：当依据6.2.2段所述测试时，自攻丝扭断时的扭强应等於或超过表 3所的数值。6・2・2Torsionalstrengthtest・TheshankoftheSamplescrew（coatedoruncoated,asreceived）shallbeclampedinamating,split,threadeddieorotherdevicesothattheclampedportionofthescrewisnotdamagedandatleasttwofullthreadsprojectabovetheclampingdeviceandatleasttwofull-formthreadsexclusiveofpointareheldwithintheclampingdevice.Athreadedinsertwithablindholemaybeusedinplaceoftheclampingdevice（seefigure1）providedthattheholedepthissuchastoensurethatbreakagewilloccurbeyondthepoint.Bymeansofasuitablecalibratedtorque-measuringdevice（ueshallbeappliedtothescrewuntilfailureoccurs.Thescrewshallmeettheminimumtorsionalstrengthrequirementsgivenintable3.治强测试：丝样品的杆部（接收时为电镀或未电镀）应被夹紧於相配合之分开式纹夹具或其他装置中，使丝被夹紧的部分会被损毁，并且由至少2个全牙於夹具上，至少2个全牙夹在夹具之中（包括尾端）。盲孔可以取代纹夹具（图1），所提供之孔深须能确保在尾端断。以一校正过且适合的扭测设备 （参考ISO898-7）施予扭测试直到断为止，丝应符合表3的最小扭强要求。表3—扭强纹规格最小扭强 N.mST2.20.45ST2.60.9ST2.91.5ST3.32.0ST3.52.7ST3.93.4ST4.24.4ST4.86.3ST5.510ST6.313.6ST830.5ST9.568.0DIN7500-1-20O9ThreadrollingscrewsforISOmetricthread-Part1:TechnicaldeliveryconditionsforcasehardenedandtemperedScrewsISO公制滚牙丝一第一部份：渗碳与回火丝之交货拄术条件5.4