FORD WSB-M15P35-A4-2013 PERFORMANCE REQUIREMENTS THERMOPLASTIC POSITIVE LOCKING TRIM FASTENER TYPE IV TO BE USED WITH FORD WSS-M99P1111-A (Shown on FORD WSB-M15P35-A1).pdf

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1、 ENGINEERING MATERIAL SPECIFICATION Material Name Specification Number Date Action Revisions Rev 02 2013 10 31 N Status No usage or replacement named L. Sinclair, NA 2002 08 19 Revised Completely revised, added A5, A6, updated and renumbered L. Graham 1990 09 11 NB00I10043054041 Released L. Graham,

2、K. Minnich, L. Moriarity Page 1 of 5 Copyright 2013, Ford Global Technologies, Inc. PERFORMANCE REQUIREMENTS, THERMOPLASTIC WSB-M15P35-A1 POSITIVE LOCKING TRIM FASTENER, TYPE I PERFORMANCE REQUIREMENTS, THERMOPLASTIC WSB-M15P35-A2 POSITIVE LOCKING TRIM FASTENER, TYPE II PERFORMANCE REQUIREMENTS, THE

3、RMOPLASTIC WSB-M15P35-A3 POSITIVE LOCKING TRIM FASTENER, TYPE III PERFORMANCE REQUIREMENTS, THERMOPLASTIC WSB-M15P35-A4 POSITIVE LOCKING TRIM FASTENER, TYPE IV PERFORMANCE REQUIREMENTS, THERMOPLASTIC WSB-M15P35-A5 POSITIVE LOCKING TRIM FASTENER, TYPE V PERFORMANCE REQUIREMENTS, THERMOPLASTIC POSITIV

4、E LOCKING TRIM FASTENER, TYPE VI WSB-M15P35-A6 NOT TO BE USED FOR NEW DESIGN 1. SCOPE These specifications define the physical property and performance requirements for polyolefin based positive locking fasteners. Type I Pop-in/Slide-in mushroom stem fastener fitting into a hole or slot. Type II Rig

5、id back mushroom stem fastener attached to a substrate using a mechanical fastener such as (rivet, screw, metal clip, etc.). Type III Mushroom stem fastener backed with acrylic pressure sensitive adhesive. Type IV Plain back mushroom stem fastener attached by methods such as stapling, sewing, ultras

6、onic or thermo-pneumatic welding, adhesives, etc. Type V Mushroom stem fastener with a non-woven backing attached to a substrate using adhesives such as hot melts, epoxies, etc. Type VI Mushroom stem fastener backed with acrylic pressure sensitive adhesive to be used for applications below the beltl

7、ine. ENGINEERING MATERIAL SPECIFICATION WSB-M15P35-A1/A6 Page 2 of 5 Copyright 2013, Ford Global Technologies, Inc. 2. APPLICATION These specifications were released originally to provide attachment requirements for interior and exterior trim component fasteners. The trim assembly must also meet the

8、 requirements of the applicable material and/or performance specifications. 3. REQUIREMENTS 3.1 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.1.1 Stem Density, stems

9、/cm2 Types I, II, III, IV, V, VI Stem Density Range stems/cm2 26 23-29 39 35-43 62 56-68 109 98-120 Test Method: Count the total number of stems in a given area, preferably 25.4 mm x 25.4 mm, for three separate parts and report the average stems/cm2. 3.1.2 System Dynamic Tensile Disengagement Force,

10、 kPa minimum Test Method: Clean and prepare a 38.1 mm x 38.1 mm rigid aluminum test panel to obtain optimal performance for the attachment method chosen. Alternatively a 25.4 mm x 25.4 mm aluminum “T” block can be cleaned and prepared for use as this test panel. Attach a 25.4 mm x 25.4 mm Type III,

11、IV, V or VI reclosable fastener sample, using a firm attachment method to ensure that the fastener remains flat and parallel to the above panel. Roll down the applied fastener, three times in each direction with a 6.8 kg roller to obtain contact. Allow sample to dwell for the recommended amount of t

12、ime per chosen attachment method. Clean and prepare a 50.8 mm x 50.8 mm rigid aluminum test panel to obtain optimum performance for the attachment method chosen. Attach a 38.1 mm x 38.1 mm sample of a Type III, IV, V or VI reclosable fastener, using a firm attachment method to ensure that the fasten

13、er remains flat and parallel, to the above panel. Roll down the applied fastener, three times in each direction with a 6.8 kg roller to obtain contact. Allow sample to dwell for the recommended amount of time per chosen attachment method. ENGINEERING MATERIAL SPECIFICATION WSB-M15P35-A1/A6 Page 3 of

14、 5 Copyright 2013, Ford Global Technologies, Inc. Center the 25.4 mm x 25.4 mm reclosable fastener within the 38.1 mm x 38.1 mm reclosable fastener. Keep any obvious rows of stems aligned in parallel. Carefully and fully engage the two samples to get a 25.4 mm x 25.4 mm (645.2 mm2) overlap. Disengag

15、e the samples in a tensile machine at 23 +/- 2 C and a crosshead speed of 305 mm/minutes using a suitable fixture. An average of five samples should be reported. Engaged Types: Stem Density Initial After 100 Closures 26 to 39 70 50 26 to 62 125 90 39 to 39 95 70 39 to 62 150 110 109 to 109 100 50 3.

16、1.3 System Dynamic Shear Disengagement Force, kPa minimum Test Method: Clean and prepare two 50.8 mm x 76.2 mm rigid aluminum panels to obtain optimal performance for the attachment method chosen. Starting at the center and one end of one panel attach a 25.4 mm x 25.4 mm Type III, IV, V or VI reclos

17、able fastener sample, using a firm attachment method that ensures the fastener remains flat and parallel, to the above panel. Apply an amount of pressure and dwell time before testing as recommended by the manufacturer of the chosen attachment method. Starting at the center and one end of the other

18、panel attach a 38.1 mm x 38.1 mm Type III, IV, V or VI reclosable fastener sample, using a firm attachment method that ensures the fastener remains flat and parallel, to the above panel. Apply an amount of pressure and dwell time before testing as recommended by the manufacturer of the chosen attach

19、ment method. Align the 25.4 mm x 25.4 mm reclosable fastener sample at the bottom and center of the 38.1 mm x 38.1 mm reclosable fastener. Keep any obvious rows of stems aligned in parallel. Carefully and fully engage the two samples to give a 25.4 mm x 25.4 mm (645.2 mm2) overlap. Fixture the ends

20、of the two aluminum panels, opposite the engaged reclosable fasteners, into the jaws of a tensile machine in such a manner as to keep the two plates parallel to each other and parallel to the direction of separation during disengagement. Disengage the samples in a tensile machine at 23 +/- 2 C and a

21、 crosshead speed of 305 mm/minute using a suitable fixture. An average of five samples should be reported. ENGINEERING MATERIAL SPECIFICATION WSB-M15P35-A1/A6 Page 4 of 5 Copyright 2013, Ford Global Technologies, Inc. Engaged Types: Engaged Combinations Minimum Value (kPa) 26 to 39 35 26 to 62 50 39

22、 to 39 40 39 to 62 90 109 to 109 40 3.2 PERFORMANCE PROPERTIES ACRYLIC ADHESIVE (Type III and VI only) 3.2.1 Dynamic 90 Degree Peel Adhesion, (FLTM BU 112-02, 23 +/- 2 C. 305 mm/ minute speed, 72 hours after bonding). Type III N/cm width, minimum 13 Type VI N/cm width, minimum 6.5 Test Method: Clean

23、 and prepare a 50.8 mm x 152.4 mm rigid aluminum substrate to obtain optimal performance for the chosen adhesive. Bond a 25.4 mm x 203.8 mm strip of a Type III or Type VI reclosable fastener to the substrate allowing the strip to overlap the end of the alumium substrate about 76 mm for gripping in t

24、he tensile jaw. Roll down the applied fastener, with a 6.8 kg roller, three times in each direction to ensure contact with the substrate. Allow to dwell at 23 +/- 2 C for a minimum of 72 hours. Peel each strip at a 90 degree angle from the substrate in a tensile machine at 305 mm/minute. Record the

25、average peel force between 25.4 mm and 101.6 mm. Report the average of 5 specimens. 3.2.2 Adhesive Static Shear, Type III minimum 24 hours Type VI minimum 6 hours Test Method: Clean and prepare a 50.8 mm x 76.2 mm rigid aluminum panel substrate, to obtain optimal performance for the chosen adhesive.

26、 Bond a 25.4 mm x 25.4 mm area of a 25.4 mm x 152.4 mm strip of Type III or Type VI reclosable fastener to the bottom center of the substrate. Roll down the strip three times in each direction, using a 6.8 kg roller, to ensure contact with the substrate. Allow to dwell at 23 +/- 2 C for a minimum of

27、 72 hours, or the time suggested by the manufacturer for the adhesive system. Fold the overhanging part of the strip onto itself and staple forming a loop into which a shear hook is inserted. The substrate is placed in a shear stand at 82 C and a 750 gram weight is added to the shear hook. Record th

28、e time in hours for the load to drop, or 24 hours whichever occurs first. ENGINEERING MATERIAL SPECIFICATION WSB-M15P35-A1/A6 Page 5 of 5 Copyright 2013, Ford Global Technologies, Inc. 3.5 FOGGING (SAE J1756, 3 h at 100 C heating, 21 C cooling plate, post test conditioning 1 h and 16 h) Fog Number,

29、min 70 Formation of clear film, droplets or crystals is cause for rejection. 4. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specification. 4.1 METHOD OF ATTACHMENT The method of attachment to the substrate must exceed disengagement value for the specific application.

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