自攻螺丝自攻螺丝扭力强度.docx

1、自攻螺丝自攻螺丝扭力强度(4) Torque Stre ngthTorque Wrench (0150 kgf) (150750 kgf)购买(150 300 kgf)ASME / FIP1000 / SAE J78, J81, J1237, J933 / ISO 898-7, ISO 2702 / DIN 7500-1 / IFI-1132. TORSIONAL STRENGTH TEST 扭力强 度试验FIP 1000Applicable To: All Tapp ing Screws.适用范围：所有种类的自攻螺丝Test Purpose: To detect parts hav ing

2、low stre ngth which might twist off duri ng driv ing or seati ng.测试目的：为检查零件是否因为扭力不足而在组装或旋紧时扭断.Specificati on: See charts that follow. 如下图示Ut取扭力扳手 上的扭力愷最少2 在喪具中4定疆動工具巴就定仅试少2牙 虑在上而卜9Apparatus required: 测 试装置A.Appropriate Split Collet. 适当的夹 具B.Collet Holder. 夹具座C.Screw Testi ng Fixture. 螺丝测试座D.Torque W

3、ren ch; accurate with +/-2%. 准确度在 2%以 内 的扭力扳手Sample Size(Minimum Recommended): 4 pieces per lot; lot size not to exceed 250,000 抽样数（建议最少）：每批4支,每批批量不超过250M PCS.Procedure:测试程序A Place the split collet into the collet holder and screw the faste ner in to the collet such that a minimum of 2 full threads

4、are in the collet and a minimum of 2 threads are above the collet.将螺丝置入测试夹具中再将夹具放入夹具座，螺丝至少应有两个完全牙在夹 具中，两牙在夹具上方.B.Place the collet holder in the screw testing fixture and clamp into place.将夹具座固定在螺丝测试座上C.Apply torque with a torque wrench until the part twists off.扭转扳手直到螺丝扭断D.Record failure value and c

5、ompare to the required specification.记录破坏值且与规范值比较Failure: Part twists in two at less tha n specified minimum.失效：螺丝扭断值小於规范值Possible Failure Causes: 失效可 能因素A.Core Hardness too low. 心部硬度太低B.Case Hard ness too low. 表面硬度太低C Case Hardness too shallow. 有 效渗碳 层不足D Minor diameter too small. 最小径（牙底径）太小ASME -

6、20134.11.3 Torsional Strength Test. Screws shall be securely clamped by suitable means, such that the clamped portion threads are not damagedand that at least two full threads project above the clamping device, and that at least two full threads exclusive of point, flutes, or end slot, are held with

7、 in the clamp ing device. （A bli nd hole may be used in place of a threaded clamp ing device, provided the hole depths is such as to in sure that breakage will occur bey ond the point or the full le ngth of the flutes or end slot）. By means ofa suitably calibrated torque measuring device, torque sha

8、ll be applied to the screw until failure occurs. The torque required to cause failure shall no less than the minimumvalue given in Table 50 for the type and size of screw being tested. A typical fixture forcon duct ing torsi onal stre ngth tests on tapp ing screws is depicted in Fig. 4.扭力强度测试：螺丝应以适当

9、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螺纹不致损毁，并且露出至少2全牙於夹具上至少2全牙（不包括尾端、割尾、或凹槽）握於夹具 之中。（盲孔可以取代螺纹夹具，其孔深应能保证螺丝不会在尾端、割尾全长或尖尾位置断裂 ）以一校正过且适当的扭力量测设备，测试直到断裂为止，当断裂时的扭力应不可小於表 50之最小值。典型的扭力强度测试设备请参考图 4。图4 -扭力强度测试参考图表50 -自攻螺丝之扭力强度要求螺丝规格最小扭力强度,lb-in.Type ATypeAB ,B ,BF,BP ,BTType C , D , F, G , TType TRS粗牙细牙粗牙细牙# 244566#

10、39991010# 41213131514# 51818182022# 62424232724# 73030# 83939424748# 10485656746574# 1283889310893# 141251/4142140179156# 16152# 181965/16290306370330# 20250# 244923/85905607106007/166207008208401/21020107512851080ASME 2000Torsi onal Stren gth Test for All Types of Screws.The sha nk of the samplescr

11、ew (coated or uncoated, as received)shall be securely clamped in a mating.split, bli nd hole die (see follow ing requireme nts are met: 所有类型之螺丝的扭力强度测试）,or other equivale nt means, such that the:将螺丝（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，并满足下列规定:(a)the clamped porti on of the threads is not

12、damaged被夹部位的螺纹不能损伤(b)at least two full-form threads project above the clampi ng device至少2全牙突出於夹具上方(c)at least two full-form threads exclusive of the point taper or the flutesare held with in the clamp ing device (a bli nd hole may be used in place ofthe clampi ng device, provided the hole depth en s

13、ures that screw breakagewill occur bey ond the point taper or the full le ngth of the flutes)至少2全牙(不包括尾端、割尾、或凹槽)夹在夹具之中。(盲孔可以取代夹紧装置，其孔深应 能保证螺丝不会在尾端、割尾全长或尖尾位置断裂 )By means of a suitably calibrated torque -measuri ng device, torque shall beapplied to the screw un til failure occurs. The torque required

14、to cause failure shall equal or exceed the minimum value specified in Table 4 for the type and size of screw being tested.以一校正过之适当的扭力量测设备，测试螺丝直到产生断裂。当断裂时的扭力应不可小於表4规定 之最小值。TYPICAL TORSIONAL STRENGTH TEST FIXTURE表4 -自攻螺丝之扭力强度要求Type AB, B, BF, BT 螺丝Type D, F, T 螺丝螺丝规格扭力，Nm螺丝规格扭力，NmJ78-2013 Steel Self-D

15、rilli ng Tap pi ng Screws 钢铁自钻螺丝（IFI 113 与SAE J78完全相同）Torsio nal Stre ngth Screws shall not fail with the applicati on of a torque less tha nthe torsional strength torque specified in Table 5, when tested in accordanee with 5.1.1.扭力强度：当依据5.1.1段所述测试时，螺丝扭断时的扭力强度应不能小於表 5所列的数值。5.1.1TORSIONAL STRENGTH TE

16、TThe sample screw shall be securely clamped by suitable means （Figure 5） such that the threads in the clamped len gth are not damaged, and that at least two full threads project above the clamping device, and that at least two full threads exclusive of point, flutes, or thread cutt ing slot, are hel

17、d with in the clamp ing device. By meansof a suitably calibrated torque measuring device, torque shall be applied to the screw until failure of the screw occurs. The torque required to cause failure shall be recorded as the torsio nal stre ngth torque.扭力强度测试：螺丝样品应安全的被夹紧於适当的夹座（图5）以防止螺丝夹紧长度部位的螺纹损伤, 并且

18、露出至少2个全牙於夹具上，至少2个全牙握於夹具之中但不包括尾端、凹槽、或割沟螺纹在内。 以一校正过适合的扭力设备测试直到断裂，断裂时所记录的扭力就是扭力强度扭力。表5-Type BSD与Type CSD自钻螺丝的机械性与功能性要求公称螺丝尺寸最小扭力强度,lb-inType BSD（宽牙）Type CSD（机 械牙）#41414#62424#84248#106165#12921001/4150156333 TORSIONAL STRENGTScrews shall not fail with the 即 plicati on of a torque less than the torsiona

19、l strength torque specified in Tables 5A and 5B, when tested in accordaneewith .扭力强度：依据 段所述测试时，螺丝扭断时的扭力强度不能小於表 5所列的数值。Torsio nal Stren gth Test The sample screw shall be securely clamped by suitable means(Figure 2) such that the threads in the clamped length are not damaged, and that at least two fu

20、ll threads project above the clamping device, and that at least two full threads exclusive of point (2 to 3 1/2 thread pitches) are held within the clamping device. A blind hole may be used in place of a threaded clamping device, provided the hole depths is such as to in sure that breakage will occu

21、r bey ond the point (2 to 3 1/2 thread pitches). By means of a suitably calibrated torque-measuring device, torque shall be applied to the screw un til failure of the screw occurs. The torque required to cause failure shall be recorded as the torsi onal stre ngth torque.扭断强度测试：螺丝样品应以适当的方式牢固的夹紧(图2)以防

22、止在夹具中的螺纹不被损伤，并且 露出至少2个完全牙在夹具上，以及至少 2个完全牙(不包括2 - P的尾端在内)握於夹具之中。 一种盲孔可以使用来取代螺纹夹具，所提供之孔深需能确保断裂不会产生在尾端 (2 - P)处。以一支校正过的适当扭力设备测试直到断裂。失效的扭力应被记录并作为扭断强度扭力。Torque Wren ches Torque wren ches used in all tests shall be accurate with in 2%of the maximumof the specified torque range of the wren ch. Alternatively

23、, a torque-se nsing powerdevice of equivale nt accuracy may be used.扭力扳手：测试时使用的所有扭力扳手，其准确度应在扳手最大扭力范围的 土 2%之内。此外拥有相同准确度的扭力感应动力装置也可被使用。表5-螺纹滚牙螺丝的机械性能与功能性要求螺丝规格最小扭力强度in-lb2-5663-48 104-40145-40226-32248-324810-24651/4 -201565/16 -183303/8 -166007/16 -148401/2 -131080自攻螺丝的机械性SAE J933-2013 Mecha nical an

24、d Quality Requireme nts for Tapp ing Screws与品质要求Torsio nal Stren gth Test Shank of sample screw (coated or un coated, as received) shallbe securely clamped in a mat ing, split, bli nd-hole die (Figure 1) or other means, suchthat the clamped portion of the threads is not damagedand at least two full

25、threads project above the clamping device and at least two full form threads exclusive of point, flute(s), or end slot are held within the clamping device. (A blind hole may be used in place of the clamp ing device, provid ing the hole depth is such as to in sure that the breakage will occur bey ond

26、 the point, or the full le ngth of the flute(s) or end slot.) By means of a suitably calibrated torque measuring device, apply torque to the screw until failure occurs. The torque required to cause failure shall equal or exceed the minimumvalue shown in Table 2 for the type and size of screw being t

27、ested.扭力强度测试：螺丝样品的杆部(接收时是电镀或未电镀)应被稳固的夹於一相配合的分开盲孔中 (图1)或用其他方式，使被夹紧的螺纹部分不受到损伤，并且露出至少 2个全牙於夹具上及至少2个全牙(不包括尾端、割尾或末端)握於夹具之中。(一种盲孔可以用来取代夹具，其孔深应能保证螺 丝不会在尾端、割尾全长、或尖尾位置断裂)。以一支校正过且适当的扭力量测设备，施加扭力於 螺丝上直到断裂为止，断裂时的扭力应等於或大於表 2所列的最小值。表2-自攻螺丝的最小扭力强度要求螺丝规格最小扭力强度，lb-inType ATypeAB,B,BF,BG,BP和 BTType CType C, D,F,G,T粗牙细

28、牙粗牙细牙445656999109101213131513151818182018202424232723273030-39394247424748565674567483889310893108125-1/4-142140179140179152-196-5/16-290306370306370250-492-3/8-5905607105607107/16-1/2-3.5.3 TORSIONASTRENGTHType 2 screws shall not fail with the application of a torqueless than the torsional strength

29、 torque specified in Table 6 when tested in accordance with .扭力强度：当依据段测试时，Type 2螺丝扭断时的扭力强度应不能小於表 6所列的数值。表6-Type 2螺纹滚成螺丝的机械性要求螺丝规格最小扭力强度Torsio nal Stren gth Test The sample screw shall be securely clamped by suitable means (Figure 3) such that the threads in the clamped length are not damaged, and that at least two full threads project above the clamping device, and that at least t