1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions 2016 07 05 N Status No replacement named L. Sinclair, NA 2010 12 16 Activated S. Stanciu, NA Copyright 2016, Ford Global Technologies, LLC Page 1 of 2 POLYURETHANE (PUR) FOAM, OPEN CELL, RETICULATED WSS-M2D514-A NOT TO BE USED FOR NEW DESIGN
2、1. SCOPE The materials defined by this specification are slab stock open cell reticulated polyether polyurethane foams. 2. APPLICATION The specification was released originally for material used in seating application as a plus pad for perforated leather inserts. 3. REQUIREMENTS 3.1 STANDARD REQUIRE
3、MENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.2 APPEARANCE The foam shall have a homogeneous open cell structure with no large voids or solid spots which may impair the serviceabili
4、ty of the part. 3.3 TEST SPECIMEN The following material properties shall be determined on specimens taken from the core 6 - 10 mm from the surface skin, unless otherwise specified. The specimens shall be free of voids, hard spots and densification lines. 3.3.1 Density, range* 30 37 kg/m3 (ASTM D 35
5、74, Test A) *Note: Foam density to be specified in the Engineering Specification 3.3.2 Tensile Strength, min (ASTM D 3574, Test E, 50 mm bench marks, 5 specimens minimum) 3.3.2.1 As Received 55 kPa 3.3.2.2 After Heat Aging, 22 hrs at 140 C 33 kPa 3.3.3 Elongation, 70% min (ASTM D 3574, Test E, 50 mm
6、 bench marks, 5 specimens minimum) ENGINEERING MATERIAL SPECIFICATION WSS-M2D514-A Copyright 2016, Ford Global Technologies, LLC Page 2 of 2 3.3.4 Tear Strength, 300 N/m min (ASTM D 3574, Test F, 50 mm/minute test speed) 3.3.5 Compression Set, 20% max (ASTM D 3574, Test D, Ct calculation, 22 h at 70
7、 C, 50% deflection, 3 specimens minimum) 3.3.6 Indentation Force Deflection, range (ASTM D 3574, Test B1, 25% and 65% deflection, 3 specimens min, 100 mm thick) 3.3.6.1 At 25% deflection 175 250 N 3.3.6.2 At 65% deflection 300 525 N 3.3.7 Fogging (SAE J1756, 3 h at 100 C heating, 21 C cooling plate,
8、 post test conditioning 16 h) Fog Number, 70 min Formation of clear film, droplets or crystals is cause for rejection. 3.3.8 Odor, Rating 3 max (FLTM BO 131-03) 3.3.9 Flammability (ISO 3795/SAE J369) Burn Rate, 100 mm/minute max 3.4 ADDITIONAL REQUIREMENTS Specific requirements for material and/or m
9、anufactured 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 Permeability (ASTM D737), 1 in specimen 305- 455 cm3/s/cm2 4.2 RECYCLING CODE PUR
