自攻螺丝自攻螺丝-扭力强度.docx

(4) Torque Strength Torque Wrench (0150 kgf) (150750 kgf) 購買(150 300 kgf)ASME B18.6.3 / FIP1000 / SAE J78, J81, J1237, J933 / ISO 898-7, ISO 2702 / DIN 7500-1 / IFI-1132. TORSIONAL STRENGTH TEST扭力強度試驗FIP 1000Applicable To: All Tapping Screws.適用範圍：所有種類的自攻螺絲Test Purpose: To detect parts having low strength which might twist off during driving or seating.測試目的：為檢查零件是否因為扭力不足而在組裝或旋緊時扭斷.Specification: See charts that follow. 如下圖示Apparatus required: 測試裝置A. Appropriate Split Collet. 適當的夾具B. Collet Holder. 夾具座C. Screw Testing Fixture. 螺絲測試座D. Torque Wrench; accurate with +/-2%. 準確度在2%以內的扭力扳手Sample Size(Minimum Recommended): 4 pieces per lot; lot size not to exceed 250,000抽樣數(建議最少)：每批4支,每批批量不超過250M PCS.Procedure: 測試程序A. Place the split collet into the collet holder and screw the fastener into the collet such that a minimum of 2 full threads are in the collet and a minimum of 2 threads are above the collet. 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. Place the collet holder in the screw testing fixture and clamp into place. 將夾具座固定在螺絲測試座上C. Apply torque with a torque wrench until the part twists off. 扭轉扳手直到螺絲扭斷D. Record failure value and compare to the required specification.記錄破壞值且與規範值比較Failure: Part twists in two at less than specified minimum.失效：螺絲扭斷值小於規範值Possible Failure Causes: 失效可能因素A. Core Hardness too low. 心部硬度太低B. Case Hardness too low. 表面硬度太低C. Case Hardness too shallow. 有效滲碳層不足D. Minor diameter too small. 最小徑(牙底徑)太小ASME B18.6.3 20134.11.3 Torsional Strength Test. Screws shall be securely clamped by suitable means, such that the clamped portion threads 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 end slot, 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 insure that breakage will occur beyond the point or the full length of the flutes or end slot). By means of a suitably calibrated torque measuring device, torque shall be applied to the screw until failure occurs. The torque required to cause failure shall no less than the minimum value given in Table 50 for the type and size of screw being tested. A typical fixture for conducting torsional strength tests on tapping screws is depicted in Fig. 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 。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, lb-in.Type ATypeAB ,B ,BF ,BP ,BTType C , D , F, G , TType TRS粗牙細牙粗牙細牙# 244566# 39991010# 41213131514# 51818182022# 62424232724# 73030# 83939424748# 10485656746574# 1283889310893# 141251/4142140179156# 16152# 181965/16290306370330# 20250# 244923/85905607106007/166207008208401/21020107512851080ASME B18.6.5M 20003.3 Torsional Strength Test for All Types of Screws. The shank of the sample screw (coated or uncoated, as received) shall be securely clamped in a mating, split, blind hole die (see Fig.1 ) , or other equivalent means, such that the following requirements are met: 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：(a) the clamped portion of the threads is not damaged 被夾部位的螺紋不能損傷(b) at least two full-form threads project above the clamping device 至少 2 全牙突出於夾具上方(c) at least two full-form threads exclusive of the point taper or the flutes are held within the clamping device (a blind hole may be used in place of the clamping device, provided the hole depth ensures that screw breakage will occur beyond the point taper or the full length of the flutes)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)By means of a suitably calibrated torque-measuring device, torque shall be applied to the screw until failure occurs. The torque required 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。FIG.1 TYPICAL TORSIONAL STRENGTH TEST FIXTURE表4 自攻螺絲之扭力強度要求Type AB, B, BF, BT螺絲Type D, F, T 螺絲螺絲規格扭力, Nm螺絲規格扭力, Nm2.2x0.80.4M2xx11.5M2.5x0.451.13.5x1.32.7M3x0.52.04.2x1.44.4M3.5xx1.66.3M4xx1.89.9M5xx1.816M6x1168x2.133M8x1.25409.5x2.167M10x1.578SAE J78-2013 Steel Self-Drilling Tapping Screws 鋼鐵自鑽螺絲(IFI 113 與 SAE J78 完全相同)5.1 Torsional StrengthScrews shall not fail with the application of a torque less than the torsional strength torque specified in Table 5, when tested in accordance with 5.1.1.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。5.1.1 TORSIONAL STRENGTH TESTThe sample screw shall be securely clamped by suitable means (Figure 5) 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 two full threads exclusive of point, flutes, or thread cutting slot, are held within the clamping device. By means of 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 torsional strength torque.扭力強度測試：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5Type BSD與 Type CSD自鑽螺絲的機械性與功能性要求公稱螺絲尺寸最小扭力強度, lb-inType BSD(寬牙)Type CSD(機械牙)#41414#62424#84248#106165#12921001/4150156SAE J81-2012 Thread Rolling Screws 螺紋滾牙螺絲3.3.3 TORSIONAL STRENGTHScrews shall not fail with the application of a torque less than the torsional strength torque specified in Tables 5A and 5B, when tested in accordance with 4.5.扭力強度：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 所列的數值。4.5 Torsional Strength TestThe 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 full 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 insure that breakage will occur beyond 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 until failure of the screw occurs. The torque required to cause failure shall be recorded as the torsional strength torque.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 - 3.5 P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 - 3.5 P)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。4.10 Torque WrenchesTorque wrenches used in all tests shall be accurate within 2% of the maximum of the specified torque range of the wrench. Alternatively, a torque-sensing power device of equivalent accuracy may be used.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 2% 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螺絲規格最小扭力強度in-lb2-5663-48104-40145-40226-32248-324810-24651/4 -201565/16 -183303/8 -166007/16 -148401/2 -131080SAE J933-2013 Mechanical and Quality Requirements for Tapping Screws自攻螺絲的機械性與品質要求3.3 Torsional Strength TestShank of sample screw (coated or uncoated, as received) shall be securely clamped in a mating, split, blind-hole die (Figure 1) or other means, such that the clamped portion of the threads is not damaged and at least two full 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 clamping device, providing the hole depth is such as to insure that the breakage will occur beyond the point, or the full length 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 minimum value shown in Table 2 for the type and size of screw being tested.扭力強度測試：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1)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，lb-inType AType AB,B,BF,BG,BP和BTType CType C, D,F,G,T粗牙細牙粗牙細牙No.2445656No.399910910No.4121313151315No.5181818201820No.6242423272327No.73030-No.8393942474247No.10485656745674No.1283889310893108No.14125-1/4-142140179140179No.16152-No.18196-5/16-290306370306370No.20250-No.24492-3/8-5905607105607107/16-1/2-SAE J1237-2001 Metric Thread Rolling Screws 公制螺紋滾牙螺絲3.5.3 TORSIONAL STRENGTHType 2 screws shall not fail with the application of a torque less than the torsional strength torque specified in Table 6 when tested in accordance with 4.5.扭力強度：當依據4.5段測試時，Type 2 螺絲扭斷時的扭力強度應不能小於表6所列的數值。表6Type 2 螺紋滾成螺絲的機械性要求螺絲規格最小扭力強度 N.mM2x0.40.7M2.5x0.451.2M3x0.52.2M3.5x0.63.5M4x0.75.2M5x0.810.5M6x1.017.7M8x1.2543.0M10x1.587.0M12x1.75152.04.5 Torsional Strength TestThe 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 two full threads exclusive of point (2 to 3.5 thread pitches) are held within the clamping device. A blind hole may be used in place of a threaded clamping device, provided the hole depth is such as to insure that breakage will occur beyond the point (2 to 3.5 thread pitches). By means of 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 torsional strength torque.扭力強度測試：螺絲樣品應安全的被夾緊於適當的夾座(圖3)以防止被夾緊處的螺紋不會損傷，並且露出至少2個全牙於夾具上，至少2個全牙(不包括尾端在內的2到3.5個牙距)握於夾具之中。盲孔可以取代螺紋夾具，所提供之孔深能確保在尾端之後(2到3.5牙距)斷裂。以一校正過適合的扭矩量具測試直到斷裂，當斷裂時所記錄的扭矩就是扭力強度扭矩。ISO 2702-2011 Heat-treated steel tapping screws - Mechanical properties熱處理鋼製自攻螺絲之機械性質4.2.2 Torsional strength. Tapping screws shall have a torsional strength such that the torque necessary to cause failure, when tested in accordance with 6.2.2, shall equal or exceed the minimum torque values given in table 3 for the applicable screw threads.扭力強度：當依據6.2.2段所述測試時，自攻螺絲扭斷時的扭力強度應等於或超過表3所列的數值。6.2.2 Torsional strength test. The shank of the Sample screw (coated or uncoated, as received) shall be clamped in a mating, split, threaded die or other device so that the clamped portion of the screw is not damaged and at least two full threads project above the clamping device and at least two full-form threads exclusive of point are held within the clamping device. A threaded insert with a blind hole may be used in place of the clamping device (see figure 1) provided that the hole depth is such as to ensure that breakage will occur beyond the point. By means of a suitable calibrated torque-measuring device(in accordance with ISO 898-7:1992, 3.2.2), torque shall be applied to the screw until failure occurs. The screw shall meet the minimum torsional strength requirements given in table 3.扭力強度測試：螺絲樣品的桿部(接收時為電鍍或未電鍍)應被夾緊於相配合之分開式螺紋夾具或其他裝置中，使螺絲被夾緊的部分不會被損毀，並且露出至少2個全牙於夾具上，至少2個全牙夾在夾具之中(不包括尾端)。盲孔可以取代螺紋夾具(圖1)，所提供之孔深須能確保不在尾端斷裂。以一校正過且適合的扭力量測設備(參考ISO 898-7)施予扭力測試直到斷裂為止，螺絲應符合表3的最小扭力強度要求。表3 扭力強度螺紋規格最小扭力強度 N.mST 2.2ST 2.6ST 2.90.450.91.5ST 3.3ST 3.5ST 3.92.02.73.4ST 4.2ST 4.8ST 10ST 6.3ST 8ST 9.513.630.568.0DIN 7500-1-2009 Thread rolling screws for ISO metric thread Part 1: Technical delivery conditions for case hardened and tempered ScrewsISO 公制滾牙螺絲 第一部份：滲碳與回火螺絲之交貨技術條件5.4 Torsi