1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2006 04 28 N-STATUS Replaced by WSS-M99P32-B; Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.8 & 4 A. Reaume 1993 10 05 NB00I10043054291 Released J.D. Salow, A.J. Stocki Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Pag
2、e 1 of 4 PADDING, POLYURETHANE FOAM, SLAB, WEFT INSERTION FABRIC WSB-M17H93-C7 REINFORCED, REDUCED KNUCKLING NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a weft insertion fabric reinforced slab polyether polyurethane foam padding. 2. APPLICATION This specifica
3、tion was released originally for material used for trilamination to seating fabrics or vinyl coated fabrics. It is intended for applications where knuckling of the surface material in the trilaminate is a problem. 3. REQUIREMENTS Material specification requirements are to be used for initial qualifi
4、cation of materials. 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.4 FOAM REQUIREMENTS (without fabric reinforcement) 3.4.1 Density, min 29 kg/m3(ISO 845/ASTM D
5、3574, Test A) 3.4.2 Tensile Strength, min 83 kPa (ISO 1798/ASTM D 3574, Test E, 50 mm bench marks, 5 specimens min) 3.4.2.1 Elongation at Break, min 200% (Test according to para 3.4.2) 3.4.3 Tear Strength, min 350 N/m (ASTM D 1004, except thickness measured per ASTM D 3574) ENGINEERING MATERIAL SPEC
6、IFICATIONWSB-M17H93-C7 Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 2 of 4 3.4.4 Compression Set, max (ISO 1856, Method A/ASTM D 3574, Test D, Cd calculation, 22 h at 70 C, 75% deflection, 3 specimens min) Normal 15% Steam Autoclave* 20% *Expose samples per ISO
7、2440/ASTM D 3574, Test J, Procedure J1, prior to testing for compression set. 3.4.5 Cell Structure The foam shall have a homogenous medium sized cell structure with no large voids or solid spots which may impair the serviceability of the material. 3.5 FABRIC REQUIREMENTS 3.5.1 Construction 100% poly
8、ester, weft insertion and stitch bonded 3.5.2 Fabric Count, nominal (ASTM D 3775) Warp 13.6 ends/10 cm Fill 90.6 picks/10 cm Stitch Length 22.0 stitches/10 cm 3.5.3 Weight, min 48 g/m2(FLTM BN 106-01) 3.5.4 Breaking Strength, min (ASTM D 5034, Grab Method, 305 mm/minute jaw speed, avg of 5 samples,
9、each direction) Warp & Fill 133 N 3.5.5 Tear Strength, min (ASTM D 1117, Integration Method*, avg of 5 samples, each direction) Warp & Fill 44 N *Integration Method as approved by the responsible Materials Engineering Activity. ENGINEERING MATERIAL SPECIFICATIONWSB-M17H93-C7 Printed copies are uncon
10、trolled Copyright 2006, Ford Global Technologies, LLC Page 3 of 4 3.6 ASSEMBLY REQUIREMENTS (Foam with Sheeting) 3.6.1 Loaded Height (SAE J815, Steps 1 thru 4 only, 380 x 380 mm test specimen, fabric surface down) Original Foam Thickness 222 N Under 4.4 N Preload* IRGL, Range mm mm 6.35 1.5 - 4.1 9.
11、38 2.5 - 5.1 12.70 3.6 - 6.1 15.88 4.6 - 7.1 19.05 5.1 - 7.6 25.40 7.6 - 10.2 31.25 10.2 - 12.7 *Original thickness tolerances under 4.4 N load are +2.3/-0.3 mm. 3.6.2 Loaded Height Loss After Autoclave Aging, max 15% (SAE J815 (Steps 1 thru 4 only), 150 x 150 x 13 mm test specimen, fabric surface d
12、own) Test Method: Measure the 222 N IRGL. Then expose sample per ISO 2440/ASTM D 3574, Test J, Procedure J1. Then conduct 222 N IRGL on aged sample and calculate % loss. 3.6.3 Compression Set, max 10% (ISO 1856, Method A/ASTM D 3574, Test D, 7 d at 43 C, 50% deflection, Cd calculation, specimen size
13、 100 x 100 x 25 mm, 3 specimens min) 3.6.4 Dimensional Stability (SAE J315, Method C for 1 h at 120 C*, measure after 30 minutes at 23 C and 50% relative humidity) MD +/- 2.0% AMD +/- 2.0% *Immediately prior to oven exposure, immerse specimens in water for 1 minute and then shake off water excess. 3
14、.6.5 Ply Adhesion (Sheeting to Foam), min 130 N/m width (ASTM D 413, Machine Method, strip specimen) ENGINEERING MATERIAL SPECIFICATIONWSB-M17H93-C7 Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 4 of 4 3.6.6 Flexibility No cracking or crumbling of foam Test Metho
15、d: Expose samples per ISO 2440/ASTM D 3574, Test J, Procedure J1. Then bend 180 around a 6.4 mm mandrel. 3.6.7 Low Temperature Flexibility (FLTM BN 102-01) No evidence of cracks or failure at -34 C. 3.6.8 Fogging (FLTM BO 116-03, 3 h at 100 C, fabric side down) Fog Number, min 60 The formation of dr
16、oplets or coalescence into a clear film is cause for rejection. 3.6.9 Odor Rating 2 (FLTM BO 131-01/SAE J1351) 3.6.10 Resistance to Staining Equal to control sample (SAE J1885) Test Method: Typical light colored WSB-M2F177-A or equivalent supported vinyl (PVC) trim material shall be placed in intima
17、te contact over a 68 x 145 mm specimen of the foam/fabric material. Run a control sample of the same light colored WSB-M2F177-A material at the same time. Expose test samples for 225.6 kJ. Remove from xenon weatherometer and examine. 3.7 FLAMMABILITY (ISO 3795/SAE J369) Burn Rate, max 100 mm/minute 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specification. 5.1 RECYCLING CODE PEUR,PET
