1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions 2006 10 18 N-STATUS Replaced by WSB-M2D402-A3 2004 10 19 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.5, 3.6 & 4 1995 06 01 EP00E10460385000 K. Gerhards Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 1 of
2、 2 POLYURETHANE (PUR) FOAM, RECONSTITUTED WSS-M2D485-A NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a reconstituted flexible polyurethane foam. Quiescent 2. APPLICATION This specification was released originally for material used in seat cushions. 3. REQUIREME
3、NTS 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 TEST SPECIMEN 3.4.1 Density, min 95 kg/m3 (ISO 845/ASTM D 3574, Test A) 3.4.2 Tensile Strength, min 50 kPa (I
4、SO 1798/ASTM D 3574, Test E, 50 mm bench marks, 5 specimens minimum) 3.4.2.1 Elongation at Break, min 50% (Test according to para 3.4.2) 3.4.3 Compression Set, max 28% (ISO 1856, Method A/ASTM D 3574, Test D, 22 h at 70 C, 50% deflection, Ct calculation, 3 specimens minimum) 3.4.4 Compression Deflec
5、tion Stress 15 - 23 kPa (ISO 3386/1 at 40% compression, 100 x 100 x 50 mm specimen size, 100 +/- 20 mm/min test speed, 3 specimens minimum) 3.4.5 Heat Aging (ISO 2440/ASTM D 3574, Test K, 22 h at 140 +/- 2 C) 3.4.5.1 Compression Deflection Change Stress Change 25% (Test acc. to para 3.4.4) ENGINEERI
6、NG MATERIAL SPECIFICATION WSS-M2D485-A Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 2 of 2 3.4.6 Humidity Aging (AUTOCLAVE) (ISO 2440/ASTM 3574, Test J, 100 x 100 x 50 mm specimen, 3 h at 105 C) 3.4.6.1 Compression Deflection Change Stress Change 25% (Test acc.
7、to para 3.4.4.) 3.4.7 Staining Test Method: Cover an approx. 100 m x 100 mm x 10 mm foam specimen (with surface skin on one side) with a section of light colored standard vinyl (FLTM BN 103-01). Expose assemblies (surface skin of foam facing light source) for 150 h in the Fluorescent Sunlamp Cabinet
8、 (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. 3.4.8 Fogging (FLTM BO 116-03, 3 h at 100 C heating, 21 C cooling plate) Fog Number, min 70 Formation of clear film, droplets or crystals
9、is cause for rejection. 3.4.9 Odor, max Rating 2 (FLTM BO 131-01/SAE J 1351) 3.4.10 Flammability (ISO 3795) 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 PUR
