1、 ENGINEERING MATERIAL SPECIFICATION Material Name Specification Number Date Action Revisions 2002 07 24 Revised Rev para 3.6 & 3.7, updated & renumbered M. Dumitrescu 2001 04 27 Activated M. Dumitrescu Printed copies are uncontrolled Page 1 of 3 Copyright 2002, Ford Global Technologies, Inc. LAMINAT
2、E, THERMOPLASTIC OLEFIN, EXTRUDED SHEET, WSS-M98D35-A POLYETHYLENE FOAM 1. SCOPE The material defined by this specification is thermoplastic olefin, extruded sheet laminated, heat bonded to cross-linked polyolefin foam 2. APPLICATION This specification was released for material used as a visible cov
3、er material in a formed headliner assembly made of a composite of corrugate fiber board and thermoplastic film. 3. REQUIREMENTS In addition to the requirements listed herein, this material shall meet all requirements of the WSS-M8P3-D1/D2/D3 performance specification. In addition, when the material
4、is used in a unitized headliner assembly, or bonded to any substrate, it shall also meet the requirements of WSS-M15P27-D, when tested as an assembly. Any other applications of this material would require prior approval of Materials Engineering. 3.1 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Mat
5、erial suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.2 THICKNESS, range 2.90 +/- 0.3mm (SAE J882) Skin 0.25 +/- 0.03 mm Foam 2.60 +/- 0.3 mm or as specified on engineering drawing. 3.3 WEIGHT, range 350 +/- 35 g/m2 ASTM D
6、751 ENGINEERING MATERIAL SPECIFICATION WSS-M98D35-A Page 2 of 3 Copyright 2002, Ford Global Technologies, Inc. 3.4 FOGGING (SAE J1756, 3 h at 100 C heating, 21 C cooling plate, post test conditioning 1 h and 16 h) Fog Number, min 70 Formation of clear film, droplets or crystals is cause for rejectio
7、n. 3.5 BREAKING STRENGTH, min (ISO 37, type 1 dumb-bell/ ASTM D 412, Method A, Die C) MD 300 kPa AMD 250 kPa 3.6 TEAR STRENGTH, min (ISO 34/ASTM D 1004 Method B Procedure A Any direction 6 N/mm 3.7 ADHESION STRENGTH, (skin to foam) FLTM BN 151-05, min, N As received 12 N/50 mm The skin shall not sep
8、arate cleanly from the foam surface and the peeled specimen shall exhibit foam particles adhering to the total peeled surface. The materials shall give satisfactory performance when bonded to approved foam and/or foundation materials. The laminate shall also be compatible with the binding resins use
9、d in approved foundation boards. The peel adhesion strength of a bond shall be as specified in the assembly specification or as specified on the engineering drawing. 3.8 FLEXIBILITY AFTER AGING When the test specimens exposed to heat age or fade tests of WSS-M8P3-D1/D2/D3 are folded 180 degrees upon
10、 themselves (embossed side out), they shall not crack. ENGINEERING MATERIAL SPECIFICATION WSS-M98D35-A Page 3 of 3 Copyright 2002, Ford Global Technologies, Inc. 3.9 DIMENSIONAL STABILITY, max (SAE J883, without water immersion, 15 minutes at 100 C) MD 4.0 % AMD 3.0 % 3.10 FLAMMABILITY (ISO 3795/SAE J369) Burn Rate, max 100 mm/minute 4. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specification. 4.1 RECYCLING CODE TEO
