1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2003 10 06 Revised Para 3.0 inserted; para 3.1, 3.2, 3.3, 3.6, 3.7 and 4 deleted 1990 12 03 EP00E01031542000 Revised Scope K Gerhards1989 11 17 SM/EQ9859 TP Released K GerhardsPrinted copies are uncontrolled Copyright 2003, Ford Global Technol
2、ogies, Inc. Page 1 of 2 POLYURETHANE (PUR) FOAM, SLAB STOCK WSK-M2D417-A 1. SCOPE The material defined by this specification is a slab stock flexible polyester polyurethane foam. 2. APPLICATION This specification was released originally for material used as heater seal. 3. REQUIREMENTS 3.0 STANDARD
3、REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.4 APPEARANCE The foam shall have a homogeneous medium sized cell structure with no large voids or solid spots which may impair t
4、he serviceability of the material. 3.5 TEST SPECIMEN 3.5.1 Density, min 28 kg/m3(ISO 845/ASTM D 3574, Test A) 3.5.2 Tensile Strength, min 100 kPa (ISO 1798/ASDM D 3574, Test E, 50 mm bench marks, 5 specimens minimum) 3.5.2.1 Elongation at Break, min 120% (Test according to para 3.5.2) 3.5.3 Tear Str
5、ength, min 250 N/m (ISO DIS 8067/ASTM D 3574, Test F, 50 mm/minute test speed) 3.5.4 Compression Set, max 7% (ISO 1856, Method A/ASTM D 3574, Test D, Ct calculation, 22 h at 70 C, 50% deflection, 3 specimens minimum) 3.5.5 Compression Deflection Stress 3.5 - 5.0 kPa (ISO 3386/1 at 40% compression, s
6、pecimen size 100 x 100 x 50 mm, 100 +/-20 mm/min test speed) ENGINEERING MATERIAL SPECIFICATIONWSK-M2D417-APrinted copies are uncontrolled Copyright 2003, Ford Global Technologies, Inc. Page 2 of 2 3.5.6 Heat Ageing (ISO 2440/ASTM D 3574, Test K, 22 h at 140 +/-2 C) 3.5.6.1 Compression Deflection St
7、ress Change, max 30% (Test acc. to para 3.5.5, 3 specimens minimum) 3.5.7 Humidity Ageing (AUTOCLAVE) (ISO 2440/ASTM D 3574, Test J, 100 x 100 x 50 mm specimen, 3 h at 105 C) 3.5.7.1 Compression Deflection Change Stress Change 60% (Test acc. to para 3.5.5.) 3.5.7.2 Compression Set, max 40% (Test acc
8、. to para 3.5.4 absolute figures) 3.5.8 Staining None Test Method: Cover an approx. 100 mm x 100 mm x 10 mm foam specimen (with surface skin on one side) with a section of light colored standard vinyl (FLTM BN 103-1). Expose assemblies (surface skin of foam facing light source) for 150 h in the Fluo
9、rescent Sunlamp Cabinet (equipment as specified in FLTM BO 115-01). Control specimens of vinyl should also be exposed. Evaluate the standard material after cooling to room temperature. 3.5.9 Fogging (FLTM BO 116-03) Fog Number, min 70 Formation of excessive amounts of clear film or droplets is cause for rejection. 3.5.10 Odor, max Rating 2 (FLTM BO 131-01/SAE J1351) 3.5.11 Ash Content, max 1% (ISO 247, Method B/ASTM D 1278, 800 +/- 25 C) 3.5.12 Flammability (ISO 3795) Burn Rate, max 100 mm/minute
