自攻螺丝自攻螺丝 扭力强度Word文档格式.docx
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Procedure:
測試程序
A.PIacethesplitcolletintothecolletholderandscrewthefastenerintothecolletsuchthataminimumof2fullthreadsareinthecolletandaminimumof2threadsareabovethecollet.
將螺絲置入測試夾具中再將夾具放入夾具座，螺絲至少應有兩個完全牙在夾具中，
兩牙在夾具上方.
B.Placethecolletholderinthescrewtestingfixtureandclampintoplace.
將夾具座固定在螺絲測試座上
C.Applytorquewithatorquewrenchuntiltheparttwistsoff.
扭轉扳手直到螺絲扭斷
D.Recordfailurevalueandcomparetotherequiredspecification.
記錄破壞值且與規範值比較
Failure:
Parttwistsintwoatlessthanspecifiedminimum.
失效：
螺絲扭斷值小於規範值
PossibleFailureCauses:
失效可能因素
A.CoreHardnesstoolow.
心部硬度太低
B.CaseHardnesstoolow.
表面硬度太低
C.CaseHardnesstooshallow.
有效滲碳層不足
D.Minordiametertoosmall.最小徑（牙底徑太小
ASMEB1863-2013
4.11.3TorsionalStrengthTest.Screwsshallbesecurelyclampedbysuitablemeans,suchthattheclampedportionthreadsarenotdamagedandthatatleasttwofullthreadsprojectabovetheclampingdevice,andthatatleasttwofullthreadsexclusiveofpoint,flutes,orendslot,areheldwithintheclampingdevice.（Ablindholemaybeusedinplaceofathreadedclampingdevice,providedtheholedepthsissuchastoinsurethatbreakagewilloccurbeyondthepointorthefulllengthoftheflutesorendslot.Bymeansofasuitably
calibratedtorquemeasuringdevice,torqueshallbeappliedtothescrewuntilfailureoccurs.ThetorquerequiredtocausefailureshallnolessthantheminimumvaluegiveninTable50forthetypeandsizeofscrew
torsionalstrengthtestson
beingtested.AtypicalfixtureforconductingtappingscrewsisdepictedinFig.4.
扭力強度測試：
螺絲應以適當的方式安全的夾於一相配合的分離盲孔或其他裝置中以防止所夾緊的螺紋不致損毀，並且露出至少2全牙於夾具上至少2全牙（不包
括尾端、割尾、或凹槽握於夾具之中。
（盲孔可以取代螺紋夾具，其孔深應能保証
螺絲不會在尾端、割尾全長或尖尾位置斷裂以一校正過且適當的扭力量測設備，測
試直到斷裂為止，當斷裂時的扭力應不可小於表50之最小值。
典型的扭力強度測
試設備請參考圖4。
!
|a
.*5二
圖4-扭力強度測試參考圖
表50-自攻螺絲之扭力強度要求
螺絲規格
最小扭力強度,Ib-in.
Type
TypeA
AB,B,BF,BP,BT
TypeC,
D,F,G,T
TypeTRS
粗牙
細牙
10
12
13
15
14
18
20
22
24
23
27
30
39
42
47
48
#10
56
74
65
#12
83
88
93
108
#14
125
1/4
142
140
179
156
#16
152
#18
196
5/16
290
306
370
330
#20
250
#24
492
3/8
7/16
1/2
590
560
710
600
620
700
820
840
1020
1075
1285
・・・
ASMEB18.6.5M-2000
3.3TorsionalStrengthTestforAllTypesofScrews.Theshankofthe
samplescrew（coatedoruncoated,asreceivedshallbesecurely
clampedinamating,split,blindholedie（seeFig.1,orother
equivalentmeans,suchthatthefollowingrequirementsaremet:
所有類型之螺絲的扭力強度測試：
將螺絲（接收時有塗層或無塗層）的桿部安全的夾在一個相配合的分離盲孔模具（參閱圖1,或其他相同裝置中，並滿足下列規定：
（atheclampedportionofthethreadsisnotdamaged
被夾部位的螺紋不能損傷
（batleasttwofull-formthreadsprojectabovetheclampingdevice
至少2全牙突出於夾具上方
（catleasttwofull-formthreadsexclusiveofthepointtaperortheflutesareheldwithintheclampingdevice（ablindholemaybeusedinplaceoftheclampingdevice,providedtheholedepthensuresthatscrewbreakagewilloccurbeyondthepointtaperorthefulllengthoftheflutes
至少2全牙（不包括尾端、割尾、或凹槽夾在夾具之中。
（盲孔可以取代夾緊裝置，其孔深應能保證螺絲不會在尾端、割尾全長或尖尾位置斷裂
Bymeansofasuitablycalibratedtorque-measuringdevice,torqueshallbeappliedtothescrewuntilfailureoccurs.ThetorquerequiredtocausefailureshallequalorexceedtheminimumvaluespecifiedinTable4forthetypeandsizeofscrewbeingtested.
以一校正過之適當的扭力量測設備，測試螺絲直到產生斷裂。
當斷裂時的扭力應不可小於表4規定之最小值。
o
FIG.1TYPICALTORSIONALSTRENGTHTESTFIXTURE
表4-自攻螺絲之扭力強度要求
TypeAB,B,BF,BT螺絲丁心D絲T螺
扭力，Nm
2.2X0.8
0.4
M2X0.4
0.5
2.9x1
1.5
M2.5x0.45
1.1
3.5X1.3
2.7
M3X0.5
2.0
4.2X1.4
4.4
M3.5X0.6
3.1
4.8X1.6
6.3
M4X0.7
4.6
5.5X1.8
9.9
M5X0.8
9.4
6.3X1.8
16
M6x1
8x2.1
33
M8x1.25
40
9.5X2.1
67
M10X1.5
78
SAEJ78-2013SteelSelf-DrillingTappingScrews鋼鐵自鑽螺絲
（IFI113與SAEJ78完全相同5.1TorsionalStrength—ScrewsshallnotfailwiththeapplicationofatorquelessthanthetorsionalstrengthtorquespecifiedinTable5,whentestedinaccordaneewith5.1.1.
扭力強度：
當依據5.1.1段所述測試時，螺絲扭斷時的扭力強度應不能小於表5所
列的數值。
5.1.1TORSIONALSTRENGTHTEST—Thesampiescrewshallbesecurelyclampedbysuitablemeans（Figure5suchthatthethreadsintheclampedlengtharenotdamaged,andthatatleasttwofullthreadsprojectabovetheclampingdevice,andthatatleasttwofullthreadsexclusiveofpoint,flutes,orthreadcuttingslot,areheldwithintheclampingdevice.Bymeansofasuitablycalibratedtorquemeasuringdevice,torqueshallbeappliedtothescrewuntilfailureofthescrewoccurs.Thetorquerequiredtocausefailureshallberecordedasthetorsionalstrengthtorque.
螺絲樣品應安全的被夾緊於適當的夾座（圖5以防止螺絲夾緊長度部位的螺紋損傷，並且露出至少2個全牙於夾具上，至少2個全牙握於夾具之中但不包括尾端、凹槽、或割溝螺紋在內。
以一校正過適合的扭力設備測試直到斷裂，斷裂時所記錄的扭力就是扭力強度扭力。
表5—TypeBSD與TypeCSD自鑽螺絲的機械性與功能性要求
#4
#6
#8
#10
61
#12
92
100
150
SAEJ81-2012ThreadRollingScrews_螺紋滾牙螺絲
3.3.3TORSIONALSTRENGTH—ScrewsshallnotfailwiththeapplicationofatorquelessthanthetorsionalstrengthtorquespecifiedinTables5Aand
5B,whentestedinaccordaneewith4.5.
依據4.5段所述測試時，螺絲扭斷時的扭力強度不能小於表5所歹U的
數值。
4.5TorsionalStrengthTest—Thesamplescrewshallbesecurelyclamped
bysuitablemeans（Figure2suchthatthethreadsintheclampedlengthare
notdamaged,andthatatleasttwofullthreadsprojectabovetheclampingdevice,andthatatleasttwofullthreadsexclusiveofpoint（2to31/2threadpitchesareheldwithintheclampingdevice.Ablindholemaybeusedinplaceofathreadedclampingdevice,providedtheholedepthsissuchastoinsurethatbreakagewilloccurbeyondthepoint（2to31/2threadpitchesBymeansofasuitablycalibratedtorque-measuringdevice,torqueshallbeappliedtothescrewuntilfailureofthescrewoccurs.Thetorquerequiredtocausefailureshallberecordedasthetorsionalstrengthtorque.
扭斷強度測試:
螺絲樣品應以適當的方式牢固的夾緊（圖2以防止在夾具中的螺紋不被損傷，並且露出至少2個完全牙在夾具上，以及至少2個完全牙（不包括2二3.5P的尾端在內握於夾具之中。
一種盲孔可以使用來取代螺紋夾具，所提供之孔深需能確保斷裂不會產生在尾端（2广35P處。
以一支校正過的適當扭力設備測試直到斷裂。
失效的扭力應被記錄並作為扭斷強度扭力。
4.10TorqueWrenches—Torquewrenchesusedinalltestsshallbeaccuratewithin2%ofthemaximumofthespecifiedtorquerangeofthe
wrench.Alternatively,atorque-sensingpowerdeviceofequivalent
accuracymaybeused.
扭力扳手:
測試時使用的所有扭力扳手，其準確度應在扳手最大扭力範圍的之內。
此外擁有相同準確度的扭力感應動力裝置也可被使用。
±
%
表5-螺紋滾牙螺絲的機械性能與功能性要求
最小扭力強度
in-lb
2-56
3-48
4-40
5-40
6-32
8-32
10-24
3/8-16
7/16-14
1/2-13
1080
SAEJ933-2013MechanicalandQualityRequirementsforTappingScrews自攻螺絲的機械性與品質要求
3.3TorsionalStrengthTest—Shankofsamplescrew（coatedoruncoated,
asreceivedshallbesecurelyclampedinamating,split,blind-holedie
（Figure1orothermeans,suchthattheclampedportionofthethreadsis
notdamagedandatleasttwofullthreadsprojectabovetheclamping
deviceandatleasttwofullformthreadsexclusiveofpoint,flute（s,orend
slotareheldwithintheclampingdevice.（Ablindholemaybeusedinplace
oftheclampingdevice,providingtheholedepthissuchastoinsurethat
thebreakagewilloccurbeyondthepoint,orthefulllengthoftheflute（sorendslot.Bymeansofasuitablycalibratedtorquemeasuringdevice,apply
torquetothescrewuntilfailureoccurs.Thetorquerequiredtocause
failureshallequalorexceedtheminimumvalueshowninTable2forthetypeandsizeofscrewbeingtested.
螺絲樣品的桿部_（接收時是電鍍或未電鍍應被穩固的夾於一相配合的分開盲孔中（圖9或用其他方式，使被夾緊的螺紋部分不受到損傷，並且露出至少2個全牙於夾具上及至少2個全牙（不包括尾端、割尾或末端握於夾具之中。
（一種盲孔可以用來取代夾具，其孔深應能保證螺絲不會在尾端、割尾全長、或尖尾位置斷裂。
以一支校正過且適當的扭力量測設備，施加扭力於螺絲上直到斷裂為止，斷裂時的扭力應等於或大於表2所列的最小值。
表2—自攻螺絲的最小扭力強度要求
螺絲規格最小扭力強度，Ib-
in
TypeC,D,F,G,T
AB,B,BF,BG,BP和TypeC
BT
No.2
4
5
6
No.3
9
No.4
No.5
No.6
No.7
二
-
No.8
No.10
No.12
No.14
No.16
No.18
No.20
SAEJ1237-2001MetricThreadRollingScrews公制螺紋滾牙螺絲
3.5.3TORSIONALSTRENGTH—Type2?
screwsshallnotfailwiththe
applicationofatorquelessthanthetorsionalstrengthtorquespecifiedinTable6whentestedinaccordaneewith4.5.
當依據4.5段測試時，Type2?
螺絲扭斷時的扭力強度應不能小於表所列的數值。
表6—Type2?
螺紋滾成螺絲的機械性要求
最小扭力強度N.m
07
M25x045
M3x0.5
3.5
M4x0.7
5.2
M5x0.8
10.5
M6x1.0
17.7
43.0
M10x1.5
87.0
M12x1.75
152.0
4.5TorsionalStrengthTest—Thesampiescrewshallbesecurelyclampedby
suitablemeans（Figure3suchthatthethreadsintheclamped
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