1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions Rev 03 2012 01 26 N Status No Replacement named A. Pan, APA 2005 09 21 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.6, 3.7 & 4 1989 04 07 Released SM/EQ15817TP K. Gerhards Controlled document at www.MATS Copyright 2012, Ford Global Technolo
2、gies, LLC Page 1 of 2 POLYETHYLENE (PE) EXPANDED SHEET WSK-M4D633-A NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a compression and/or vacuum formable expanded polyethyene foam mat with process skin on top and bottom surface. 2. APPLICATION This specification w
3、as released originally for material used as boot (trunk) mat. 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 (FLTM BI 109-01) The col
4、or, pattern and finish shall match the approved Design Center master sample or shall be as specified on the Engineering drawing. 3.5 TEST SPECIMEN The following material properties shall be determined on specimens taken from unmolded areas of the finished part. Sample thickness as part thickness, in
5、cluding both surface skins. 3.5.1 Density, min 110 kg/m3 (ISO 845/ASTM D 3574, Test A) 3.5.2 Tensile Strength, min 800 kPa (ISO 1798/ASTM D 3574, Test E, 50 mm bench marks, 5 specimens minimum) 3.5.2.1 Elongation at Break, min 100% (Test according to para 3.5.2) 3.5.3 Compression Set, max 35% (ISO 1
6、856, Method B/ASTM D 3374, Test D, Ct calculation, 72 h at 23 C, 50% deflection, 3 specimen minimum) 3.5.4 Compression Deflection, min 140 kPa (ASTM D 1056, 25% compression) 3.5.5 Water Absorbtion, max 5% /5 mm thickness (ASTM D 1056, expose specimen to 84 kPa, specimen with surface skin on top and
7、bottom surface) ENGINEERING MATERIAL SPECIFICATION WSK-M4D633-A Copyright 2012, Ford Global Technologies, LLC Page 2 of 2 3.5.6 Dimensional Stability Dimensional Change, max WMD 2.5% AMD 2.5% Test Method: A specimen approx. 300 x 300 mm in size shall be placed in a mechanical convection oven maintai
8、ned at 100 +/- 2 C for 3 h. Dimensional changes shall be measured after cooling down to room temperature. 3.5.7 Cold Flexibility at -40 C No cracks (FLTM BN 102-01, diameter of mandrel shall be 5 times of specimen thickness) 3.5.8 Abrasion Resistance (FLTM BN 108-02, 500 cycles, 1000 g load, CS-10 w
9、heels) The abraded area shall be compatible with the adjacent unabraded area. 3.5.9 Crocking Rating 5 (FLTM BN 107-01) 3.5.10 Fogging (FLTM BO 116-03) Fog Number, min 80 Formation of excessive amounts of clear film or droplets is cause for rejection. 3.5.11 Odor, max Rating 2 (FLTM BO 131-01/SAE J13
10、51) 3.5.12 Flammability (ISO 3795) Burn Rate, max 100 mm/minute The specimen size required for material approval is 355 x 100 x (tbd) +/- 0.1 mm with smooth surfaces. 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specification. 5.1 RECYCLING CODE SAE or PE OPTIONAL PE
