1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2006 04 28 N-STATUS Replaced by WSS-M99P32-B; ins 3.0; del 3.1, 3.2, 3.3, 3.8 & 4 A. Reaume 1996 02 16 Activated D. Whyte, B. Chen Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 1 of 4 PADDING, POLYURETHANE
2、FOAM, SLAB, KNIT FABRIC WSS-M17H93-C9 REINFORCED, HIGH STRENGTH NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a heavy weight tricot knit fabric reinforced slab polyether polyurethane foam padding. 2. APPLICATION This specification was released originally for ma
3、terial used for trilamination to seating fabrics or vinyl coated fabrics. It is intended for applications where a higher strength backing fabric is required. 3. REQUIREMENTS Material specification requirements are to be used for initial qualification of materials. 3.0 STANDARD REQUIREMENTS FOR PRODU
4、CTION 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 3574, Test A) 3.4.2 Tensile Strength, min 83 kPa (ISO 17
5、98/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) 3.4.4 Compression Set, max (ISO 1856, Method A/ASTM D 3574, Test D, Cd calculatio
6、n, 22 h at 70 C, 75% deflection, 3 specimens min) Normal 15% Steam Autoclave* 20% *Expose samples per ISO 2440/ASTM D 3574, Test J, Procedure J1, prior to testing for compression set. ENGINEERING MATERIAL SPECIFICATIONWSS-M17H93-C9 Printed copies are uncontrolled Copyright 2006, Ford Global Technolo
7、gies, LLC Page 2 of 4 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% polyester, tricot knit and heat set 3.5.2 Fabric Count, nomi
8、nal (ASTM D 3775) Wales 110/10 cm Courses 250/10 cm 3.5.3 Weight, max 135 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, each direction) Wales 300 N Courses 650 N 3.5.5 Breaking Elongation, max (ASTM D 5034, Grab Method) Wales
9、70% Courses 70% 3.5.6 Stretch and Set, %, max (SAE J855) Stretch Set Wales 25 8 Courses 15 8 3.5.7 Tear Strength, min (ASTM D 1117, Integration Method*, avg of 5 samples, each direction) Wales 40 N Courses 75 N *Integration Method as approved by Materials Engineering. ENGINEERING MATERIAL SPECIFICAT
10、IONWSS-M17H93-C9 Printed copies are uncontrolled 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 through 4 only, 380 x 380 mm test specimen, fabric surface down) Original Foam Thickness 222 N Under 4.4 N
11、Preload* IRGL, Range mm mm 6.35 1.5 - 4.1 9.38 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 through 4 only), 15
12、0 x 150 x 13 mm test specimen, fabric surface down) 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
13、, 50 % deflection, Cd calculation, specimen size 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
14、 for 1 minute and then shake off water excess. 3.6.5 Ply Adhesion (Sheeting to Foam), min 130 N/m width (ASTM D 413, Machine Method, strip specimen) ENGINEERING MATERIAL SPECIFICATIONWSS-M17H93-C9 Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 4 of 4 3.6.6 Flexibi
15、lity No cracking or crumbling of foam Test Method: 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 (SAE J1756, 3 h at 100 C heating, 21 C
16、cooling plate, post test conditioning 1 h) Fog Number, min 70 Formation of clear film, droplets or crystals 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 (SAE J1885) sample Test Method: Typical light colored WSB-M2F177-A or equi
17、valent supported vinyl (PVC) trim material shall be placed in intimate 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
