REMFORM特殊牙

1、rAssem b l yLeaders in Lower ing the Cost o - Minor DiaREMFORM? Fastening Productsfor Plastics and Light Alloy Materialsw1Major DiaREMFORM，F(xiàn)astening Productsfor Plastics and Light Alloy MaterialsREMFORM ScrewsDesigned Primarily for Plastic ApplicationsThe REMFORM ? Screw is a thread rolling fastener

2、 with a unique thread form to provide superior performanee in today s wide range of plastics. Theasymmetrical thread mini mizes radial hoop stress to reduce boss bursti ng.The narrow tip angle also reduces stress in the plastic nut member.REMFORM ?“F” ScrewsREMFORM ? “F” ScrewsDesig ned Primarily fo

3、r Magn esium Applicati onsThe REMFORM ? F” Screw utilizes the efficient thread form of the standard REMFORM ? faste ner, but employs finer thread pitch spaci ng to suit magn esium, soft alumi num, thermoset plastics, and other low ductility materials. The narrow tip angle minimizes the disturbance o

4、f low ductility nut member materials, yet en gages securely and creates stro ng internal threads.The Unique Radius Fla nk? Thread FormBoth REMFORM ? and REMFORM ?F” Fasteners employ theSt&ep Trailing FlankNarrow Tip AngieRadius Leading FlunkUnique Radius Flank? asymmetrical thread form shown in the

5、draw ing to the right. The leadi ng thread flank is most in flue ntial in forming the mati ng thread. The in tercepti ng radius form on the lead flank is there to promote efficie nt material displaceme nt and material flow. The steep trailing, or pressure, flank which opposes the faste ner head is e

6、ngin eered to resist pull-out forces, whether they be applied by a ten sile load or in duced by torque.This unique thread and its narrow tip angle efficiently displace material and therefore require mini mal en ergy to form an internal thread. The steep traili ng flank with excelle nt material con t

7、act results in a high resistance to the internal threads stripping. In applications where the failure mode is faste ner fracture, the high tors ional strength of REMFORM ? fasteners ensures a high failure torque. COPYRIGHT 2003, Research Engineering & Manufacturing Inc.3.#.#.Reduced Hoop StressWhen

8、a threaded fastener is tightened, nearly all of the axial tightening load, desig nated F, is opposed by the traili ng, or pressure, flank of the screw and the mating thread flank of the internal thread. The narrow 12.5 an gle of the pressure flank tran sfers most of the resulta nt tighte ning load i

9、n the axial direct ion,Fa, mini miz ing boss burst ing tenden ciescreatedby the radial force, Fr. The axial force, Fa, is over 4.5 times greater tha n Fr, the radial force.Optimal Material FlowThe radius thread flank of the REMFORM? screw thread minimizesradial forces duri ng thread forming, result

10、ing in low thread forming torque. The asymmetrical thread form of the REMFORM? fastenerproduces asymmetrical oppos ing resulta nt forces off the thread flanks duri ng thread formi ng, creati ng improved material flow. The picture to the left shows the material flow towards the thread root which resu

11、lts in greater material con tact along the pressure flank of thefaste ner,in creas ing resista nee to stripp ing. The reduced con tactalong the leadi ngflank reduces friction duri ng thread forming and lowers the thread formi ng torque.Easy AssemblyLow thread forming torque, whe n coupled with high

12、failure torque, results in a wide, safe assembly torque range.#.#.3mm Dia. REMFORM Fastener in DuPont Crastin ? Plastic 9mm Engagement Depth in Cored HoleTorque6mm Dia. REMFORM -F” Fastenerin AM50 Magnesium15mm Engagement Depth in Drilled Holeu q TTorque Tension5.REMFORM ? ScrewsSteep StraightMajorD

13、iameterMin orDiameter#.#.Metric SeriesSIZE mmPITCH mmMAJOR DIA.MINOR DIA. Min.Max.Min.1.00.551.051.000.651.20.651.251.200.751.40.751.451.400.851.60.851.701.600.961.80.851.901.801.162.01.002.102.001.172.51.152.602.501.483.01.353.103.001.903.51.553.603.502.224.01.754.104.002.554.52.004.604.502.875.02.

14、255.155.003.196.02.656.156.003.847.03.107.157.004.488.03.508.158.005.1210.04.5010.1510.006.40Dimensions in mmInch SeriesSIZEPITCH TPIMAJOR DIA.MINOR DIA. Min.Max.Min.2200.0880.0840.0494180.1140.1100.0666160.1390.1350.0848150.1670.1610.10010130.1930.1870.12212110.2180.2120.1441/4100.2530.2470.1575/16

15、80.3160.3090.195Dimensions in inches7.REMFORM，F(xiàn)astenersHole Size Guideli nes for PlasticsMATERIAL TYPEAENGAGEMEN X Nomina Minimum丨dT DEPTHil Dia.RecommendedB BOSS DIA.X Nominal Dia.CCOUNTERBORE DEPTH X PitchD HOLE DIA.X Nominal Dia.ABS1.52.5 - 3.52.0-2.50.25 - 0.500.72ABS / PC Blend1.02.0 - 3.02.0-2

16、.50.25 - 0.500.80PA (Nylon 6 / 6.6)1.52.5 - 3.52.0-2.50.25 - 0.500.70PA 6 30%GF1.02.0 - 3.02.0-2.50.25 - 0.500.83PBT1.02.5 - 3.52.0-2.50.25 - 0.500.75PBT 30% GF1.02.0 - 3.02.0-2.50.25 - 0.500.83PC1.02.0 - 3.02.0-2.50.25 - 0.500.80PC 30% GF1.02.0 - 3.02.0-2.50.25 - 0.500.85PE1.52.5 - 3.52.0-2.50.25 -

17、 0.500.72PET1.02.0 - 3.52.0-2.50.25 - 0.500.75PET 30% GF1.02.0 - 3.02.0-2.50.25 - 0.500.85PP2.03.0 - 3.52.0-2.50.25 - 0.500.70PPO1.02.0 - 3.02.0-2.50.25 - 0.500.85PS1.02.0 - 3.52.0-2.50.25 - 0.500.75BOSS Geometry#.REMFORM，F(xiàn)astenersHole Size Guideli nes for Plastics#.REMFORM，F(xiàn)astenersHole Size Guidel

18、i nes for PlasticsEqual to Major Diameter of ScrewC1? Max.BOSS DESIGN/9.REMFORM ?“F” ScrewsSteep Straight Fla nkMajorRadius Fla nk1-2 1/2 Tapered Lead ThreadsDiameterMetric SeriesSIZE mmPITCH mmMAJOR DIA.MINOR DIA. S Min.Max.Min.2.00.602.102.001.332.20.702.302.201.362.50.702.602.501.663.00.803.103.0

19、02.003.50.953.603.502.334.01.054.104.002.635.01.255.155.003.326.01.406.156.004.067.01.557.157.005.028.01.758.158.005.5410.02.2510.1510.007.02Dimensions in mmnch SeriesSIZEPITCH TPIMAJOR DIA.MINOR DIA.= Min.Max.Min.2400.0880.0840.055336 0.1010.0970.064432 0.1140.1100.073530 0.1270.1230.082627 0.1390.

20、1350.090824 0.1670.1610.1081021 0.1930.1870.1261219 0.2180.2120.1431/4170.2530.2470.1675/1614 0.3160.3090.210Dimensions in inches11.REMFORM? “ F” Faste nersHole Size Guidelines for Light Alloy MaterialsREMFORM? “ F” Faste nersHole Size Guidelines for Light Alloy Materials1 1REMFORM ? F Cast Hole Siz

21、esREMFORM? “ F” Faste nersHole Size Guidelines for Light Alloy MaterialsMetric SeriesScrewSizeHole DiameterF Hole Dia. as DrilledLRecommended Length of Thread EngagementHBossDia.Min.J Distance to Edge for No Measurable Distortion -Min.Top - ABottom - BMax.Mi n.Max.Mi n.Max.Mi n.2.00.601.941.861.831.

22、751.891.815.003.321.42.50.702.392.312.262.182.322.246.254.151.83.00.802.842.762.682.602.762.687.504.982.23.50.953.273.193.093.013.183.108.755.812.54.01.053.693.613.493.413.593.5110.006.642.95.01.254.674.594.414.334.544.4612.508.303.66.01.405.585.505.275.195.425.3415.009.964.27.01.556.566.486.206.126

23、.386.3017.5011.624.38.01.757.457.377.046.967.247.1620.0013.285.310.0 -2.259.219.138.698.618.958.8725.0016.606.4Dimensions in mmInch SeriesScrewSizeHole DiameterF Hole Dia. as DrilledLRecommended Length of Thread EngagementH Boss Dia.Min.JDistance to Edge for No Measurable Distortion -Min.Top - ABott

24、om - BMax.Mi n.Max.Mi n.Max.Mi n.2-400.0800.0770.0760.0730.0780.0750.2150.1430.0613-360.0920.0890.0870.0840.0890.0860.2480.1640.0704-320.1030.1000.0970.0940.1000.0970.2800.1860.0795-300.1150.1120.1090.1060.1120.1090.3130.2080.0886-270.1260.1230.1190.1160.1220.1190.3450.2290.0968-240.1510.1480.1420.1

25、390.1460.1430.4100.2720.11410-210.1740.1710.1640.1610.1690.1660.4750.3150.13112-190.1960.1930.1850.1820.1910.1880.5400.3590.1481/4-170.2290.2260.2160.2130.2220.2190.6250.4150.1715/16-140.2860.2830.2700.2670.2780.2750.7810.5180.212Dimensions in inchesREMFORM? “ F” Faste nersHole Size Guidelines for L

26、ight Alloy MaterialsREMINC/CONTIResearch Engineering & Manufacturing Inc. (REMINC) and Conti Fasteners AG (CONTI) have successfully marketed fastener technology internationally since 1961.Their success has been accomplished by licensing and training leading fastener producers worldwide.The technical

27、 program in the United States is under the direction of REMINC, located in Middletown, Rhode Island and in other countries under the direction of CONTI, situated in Baar, Switzerland.Although REMINC and CONTI are separate corporations and operate independently, each is dependent on the other for cer

28、tain functional activities.Of the thirty-five (35) fastening products that REMINC/CONTI licenses, the most recognizable is the TAPTITEfamily of TRILOBULAR? thread rolling fasteners.The proprietary products available in the program are marketed and sold, not as fastener items, but rather as COST REDU

29、CTIONS TO END-USERS OF ASSEMBLED PRODUCTS.The proprietary fasteners offered to the assemblers are the means to an end, i.e.used to generate cost reductions while at the same time providing reliably tightened joints.ORDERING/SUPPLYWhen ordering from qualified REMFORM ? fastener producers, be sure in

30、all cases to specify the REMFORM ? or REMFORM? F brand name, thread size, nominal length, head style, any other special features required, finish and quantity.DISCLAIMER CLAUSEThe values shown in this brochure are for guidance only. They are not meant to be used for design criteria. Their use and re

31、liance thereon for any purpose by anyone is entirely voluntary and at the sole risk of the user. REMINC/CONTI are not responsible for any loss, claim, or damage resulting from their use. Consult our application engineers or the application engineering department of one of our many qualified producer

32、s for your specific application data.TECHNICAL ASSISTANCEThis brochure contains basic information needed to achieve the cost-savings potential of REMFORM? and REMFORM? F fasteners.To obtain further assistance and a list of qualified producers, visit our website at or contact;REMINCTel: 401-841-8880E

33、mail: remincCONTI Fasteners AGTel: +41 (0)41/761 58 22Email: conticontifasteners.chSERVICESA summary of the capabilities of REMINC/CONTI in support of manufacturers:Technical Support?New Product Development?Research and Development Reports ?Technical Manuals?Technical Reports?Technical Information Updates ?Engineering Cons