1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions Rev 01 2014 10 02 N Status Replaced by WSS-M99P48-A1/2/3 L. Soreide, NA 2010 09 10 Activated Replaces ESB-M2D243-A S. Stanciu, NA Controlled document at www.MATS Copyright 2014, Ford Global Technologies, LLC Page 1 of 3 POLYURETHANE (POLYETHE
2、R BASED) FOAM, FLAME BONDABLE, WSS-M2D243-A6 24 26 kg/m3 density POLYURETHANE (POLYETHER BASED) FOAM, FLAME BONDABLE, WSS-M2D243-A7 27 36 kg/m3 density NOT TO BE USED FOR NEW DESIGN 1. SCOPE The materials defined by these specifications are slab stock flexible polyether polyurethane foams. 2. APPLIC
3、ATION These specifications were released originally for material used in fabric flame laminates. 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). 3.2
4、APPEARANCE The foam shall have a homogeneous medium sized cell structure with no large voids or solid spots which may impair the serviceability of the part. 3.3 TEST SPECIMEN The following material properties shall be determined on specimens taken at least 25 mm from the surface skin, unless otherwi
5、se specified. The specimens shall be free of voids, hard spots and densification lines. A6 A7 3.3.1 Core Density* 2426kg/m3 2736kg/m3 (ISO 845/ASTM D 3574, Test A) *Note: Foam density to be as specified in the Engineering Specification. For seating applications minimum density should be 27 kg/m3. 3.
6、3.2. Tensile Strength, min 120kPa 150kPa (ISO 1798/ASTM D 3574, Test E, 50 mm bench marks, 5 specimens minimum) 3.3.3 Elongation, min 170% 170% (ISO 1798/ASTM D 3574, Test E, 50 mm bench marks, 5 specimens minimum) 3.3.4 Tear Strength, min 350N/m 350N/m (ISO 8067/ASTM D 3574, Test F, 50 mm/minute te
7、st speed) ENGINEERING MATERIAL SPECIFICATION WSS-M2D243 A6/A7 Copyright 2014, Ford Global Technologies, LLC Page 2 of 3 A6 & A7 3.3.5 Compression Set, max 12% (ISO 1856, Method A/ASTM D 3574, Test D, Ct calculation, 22 h at 70 C, 50% deflection, 3 specimens minimum) 3.3.6 Compression Deflection Stre
8、ss (ISO 3386/1, 40% compression, 100 x 100 x 50 mm specimen, 100 +/- 20 mm/minute test speed, 3 specimens minimum) Center of block 3.0 - 5.0kPa Top to base of block 2.5 - 5.0kPa 3.3.7 Heat Aging (ISO 2440/ASTM D 3574 Test K, 22 h at 105 +/- 2 C)* *Note: non-standard test conditions. 3.3.7.1 Compress
9、ion Deflection Stress Change, max +/- 20% (Test acc. to para 3.3.6, 3 specimens minimum) 3.3.8 Humidity Aging (AUTOCLAVE) (ISO 2440/ASTM D3574 Test J, 100 x 100 x 50 mm specimen, 3 h at 115 C)* *Note: non-standard test conditions. 3.3.8.1 Compression Deflection Stress Change, max +/- 40% (Test acc.
10、to para 3.3.6) 3.3.8.2 Compression Set, max 40% (Test acc. to para 3.3.5 absolute figures, Autoclave age uncompressed specimens first) 3.3.9 Cell Count 110180 cells/100 mm Test Method: Cut a slice of foam as thin as possible and place it on an overhead projector together with a scale. Count the numb
11、er of cells per linear unit over a distance of 100 mm. 3.3.10 Staining None (FLTM BO 115-01) Cut out a sample of foam approx. 100 x 100 x 10 mm. Cover the larger side with white vinyl Accessory Test Material according to FLTM BN 103-01 with the glossy side uppermost and staple in place. Expose for 1
12、68 hours with the vinyl surface facing the light at a distance of 300 mm.ENGINEERING MATERIAL SPECIFICATION WSS-M2D243 A6/A7 Copyright 2014, Ford Global Technologies, LLC Page 3 of 3 A6 & A7 3.3.11 Fogging (SAE J1756, 3 h at 100 C heating, 21 C cooling plate, post test conditioning 16 hrs) Fog Numbe
13、r, min 70 Formation of clear film, droplets or crystals is cause for rejection. 3.3.12 Odor, max Rating 3 (FLTM BO 131-03) 3.3.13 Ash Content, max 1% (ISO 247, Method B/ASTM D 1278, 800 +/- 25 C) 3.3.14 Flammability (ISO 3795/SAE J369) Burn Rate, max 100 mm/minute 3.4 ADDITIONAL REQUIREMENTS Specifi
14、c requirements for material and/or manufactured parts shall be specified on the Engineering drawing, Engineering parts specification and/or performance specifications. All critical areas with respect to these properties shall be clearly designated on the engineering drawing. 4. GENERAL INFORMATION The information below is provided for clarification and assistance in meeting the requirements of this specification. 4.1 RECYCLING CODE PUR
