1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions Rev 04 2013 07 10 N Status Replaced by WSS-M99P32-C L. Soreide, NA 2004 10 13 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.6, 3.7 & 4 1993 09 01 Revised EP00E1025882500 K. Gerhards 1991 01 02 Released EP00E01089480000 K. Gerhards Controlled
2、 document at www.MATS Copyright 2013, Ford Global Technologies, LLC Page 1 of 3 POLYURETHANE (PUR) FOAM, SLAB STOCK WSK-M2D460-A NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a slab stock flexible polyester polyurethane foam. 2. APPLICATION This specification w
3、as released originally for material used as gasket for sun roofs. 3. REQUIREMENTS 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 APPEARANCE The foam shall have
4、a homogeneous medium sized cell structure with no large voids or solid spots which may impair the serviceability of the material. 3.5 TEST SPECIMEN 3.5.1 Density, min 46 kg/m3 (ISO 845/ASTM D 3574, Test A) 3.5.2 Tensile Strength, min 120 kPa (ISO 1798/ASDM D 3574, Test E, 50 mm bench marks, 5 specim
5、ens minimum) 3.5.2.1 Elongation at Break, min 130% (Test according to para 3.5.2) 3.5.3 Tear Strength, min 250 N/m (ISO DIS 8067/ASTM D 3574, Test F, 50 mm/ minute test speed) 3.5.4 Compression Set, max 10% (ISO 1856, Method A/ASTM D 3574, Test D, Ct calculation, 22 h at 70 C, 50% deflection, 3 spec
6、imens minimum) 3.5.5 Compression Deflection Stress 4.5 - 7.0 kPa (ISO 3386/1 at 40% compression, specimen size 100 x 100 x 50 mm, 100 +/- 20 mm/min test speed) 3.5.6 Heat Ageing (ISO 2440/ASTM D 3574, Test K, 22 h at 140 +/- 2 C) ENGINEERING MATERIAL SPECIFICATION WSK-M2D460-A Copyright 2013, Ford G
7、lobal Technologies, LLC Page 2 of 3 3.5.6.1 Compression Deflection Stress Change, max 25% (Test acc. to para 3.5.5, 3 specimens minimum) 3.5.7 Humidity Ageing (AUTOCLAVE) (ISO 2440/ASTM 3574, Test J, 100 x 100 x 50 mm specimen, 3 h at 105 C) 3.5.7.1 Compression Deflection Change Stress Change 25% (T
8、est acc. to para 3.5.5.) 3.5.7.2 Compression Set, max 30% (Test acc. to para 3.5.4 absolute figures) 3.5.8 Staining None Test Method: Cover an approx. 100 x 100 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 (s
9、urface skin of foam facing light source) for 150 h in the Fluorescent 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 23 +/- 2 C. 3.5.9 Leakage Test Test Method: From test slabs in thicknes
10、s of the finished part cut out rings with an inside diameter of 100 mm and an outside diameter of 120 mm. For molded parts relevant sections shall be used. The ring is to be cut into two equal parts. One part is to be placed between two glass plates of appropriate size. By use of spacers the specime
11、n is to be compressed between the plates to 60% of its original thickness, and stabilized with suitable clamps. The spacers are to be stabilized outside of the half ring. Two test specimens shall be prepared for the following tests. 3.5.9.1 Leakage Test After Heat Aging After assembling of test equi
12、pment with test specimens in place, store in a convection oven for 7 days at 80 +/- 2 C. After removal from the oven store for 3 - 4 h at 23 +/- 2 C. Place 2 - 3 mL distilled water in the open half ring and store 24 h at 23 +/- 2 C. No water shall leak to the bottom between the half ring (or molded
13、part) and the glass plates. Penetration of water up to 5 mm between test specimens (test slabs only) and glass plates is acceptable. The use of tinted water (e.g. thymol blue) is helpful. 3.5.10 Fogging (FLTM BO 116-03) Fog Number, min 70 The formation of droplets or coalescence into a clear film is
14、 cause for rejection. 3.5.11 Odor, max Rating 2 (FLTM BO 131-01/SAE J1351) ENGINEERING MATERIAL SPECIFICATION WSK-M2D460-A Copyright 2013, Ford Global Technologies, LLC Page 3 of 3 3.5.12 Ash Content, max 1% (ISO 247, Method B/ASTM D 1278, 800 +/- 25 C) 3.5.13 Flammability (ISO 3795) Burn Rate, max 100 mm/minute The specimen size required for material approval is 355 x 100 x 12.7 +/- 0.1 mm. 5. GENERAL INFORMATION The information below is provided for clarification and assistance in meeting the requirements of this specification. 5.1 RECYCLING CODE PUR
