1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions 2006 11 10 N-STATUS Replaced by WSS-M4D492-B2 2005 11 17 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.8, 3.9 & 4 1993 02 01 Released EP00E10258804000 L. Rodigas Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC P
2、age 1 of 4 THERMOPLASTIC POLYOLEFIN ELASTOMER (TEO) WSK-M4D698-A2 33 DUROMETER D HARDNESS MOLDING COMPOUND NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a semi-rigid thermoplastic polyolefin elastomer (TEO) injection molding compound, 33 durometer D hardness. T
3、his material is not UV stabilized and requires painting to achieve acceptable weatherability. 2. APPLICATION This specification was released originally for material used for painted bodyside moldings. 3. REQUIREMENTS 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part prod
4、ucers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.4 MOLDING COMPOUND (s) 3.4.1 Melt Flow Rate 15 - 25 g/ (ISO 1133, 230 C, 2.16 kg) 10 minutes 3.5 MOLDED TEST SPECIMEN 3.5.1 Preparation of Test Specimens Unless otherwise specified all tests shall b
5、e carried out on injection molded one-end gated test specimens. The following dimensions are required: A. 150 min x 10 x 4.0 +/- 0.2 mm (Tensile Bar, ISO 3167) B. 120 x 10 x 4.0 +/- 0.2 mm Specimens with shorter dimensions shall be cut from the center portion of the test specimen A and/or B. The spe
6、cimens shall be prepared according to ISO 294. No annealing allowed. 3.5.2 Density 0.88 - 0.92 g/cm3 (ISO 1183, Method A) 3.5.3 Hardness, Durometer D 30 - 38 (ISO 868, 15 s dwell) ENGINEERING MATERIAL SPECIFICATION WSK-M4D698-A2 Printed copies are uncontrolled Copyright 2006, Ford Global Technologie
7、s, LLC Page 2 of 4 (s) 3.5.4 Tensile Strength at Yield, min 6 MPa (ISO R 527, 150 minimum x 10 x 4.0 +/- 0.2 mm specimen, 50 mm/min test speed (s) 3.5.4.1 Elongation at Yield, min 17% (Test Method according to para 3.5.4) (s) 3.5.5 Flexural Modulus, min 150 MPa (ISO 178, 80 x 10 x 4.0 +/- 0.2 mm spe
8、cimen, 2 mm/min test speed, 64 mm support span) 3.5.6 Shear Modulus at 23 C 110 - 180 MPa (ASTM D 4065, forced constant amplitude, fixed frequency of 1 Hz +/- 15%, strain level below 1%. Specimen approx. 60 x 10 x 4.0 +/- 0.2 mm cut from the center of specimen A. Specimen length between clamps 35-40
9、 mm. Soak time at each temperature interval - 3 minutes minimum). Additionally, a Shear Modulus versus Temperature curve shall be plotted for -50 to +120 C temperature range, at 5 C minimum intervals. The plotted curve must be within tolerance range shown on page 4. (s) 3.5.7 Impact Strength, Izod,
10、min (ISO 180/1A, 80 x 10 x 4.0 +/- 0.2 mm specimen, 10 specimens for each test) 3.5.7.1 At 23 +/- 2 C 30 kJ/m2 3.5.7.2 At -40 +/- 1 C 3.0 kJ/m2 3.5.7.3 At 0 +/- 2 C 30 kJ/m2 3.5.7.4 At -20 +/- 2 C 6.0 KJ/m2 The test specimens must be conditioned for minimum of 6 h at the above specified temperature
11、prior to impact test. Low temperature testing shall be done within the cold box. (s) 3.5.8 Heat Deflection Temperature, min (ISO 75, 120 x 10 x 4.0 +/- 0.2 mm specimen, 0.32 +/- 0.01 mm deflection) 3.5.8.1 At 0.45 MPa 32 C 3.5.9 Heat Aging Performance (ISO 188, except 150 +/- 50 air changes/h, 1000
12、h at 130 +/- 2 C. Unaged property values shall be determined at the time of the aged properties determination) 3.5.9.1 Tensile Strength at Yield Change +/- 20% (Test Method per para 3.5.4) 3.5.9.2 Impact Strength, Izod Change, max -15% (Test Method per para 3.5.7.1, specimens to be notched before he
13、at aging) ENGINEERING MATERIAL SPECIFICATION WSK-M4D698-A2 Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 3 of 4 3.6 FOGGING (FLTM BO 116-03, 3 h at 100 C) Fog Number, min 80 Formation of excessive amounts of clear film or droplets is cause for rejection. 3.7 FLAM
14、MABILITY (ISO 3795) Burn Rate, max 100 mm/minute The specimen size required for material approval is 355 x 100 x 1.0 +/- 0.1 mm with a smooth surface. 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specification. 5.
15、1 COEFFICIENT OF LINEAR THERMAL EXPANSION 10 13-5/ C (ASTM E 228 or TMA, temperature range 20 - 100 C) 5.2 MOLD SHRINKAGE (ISO 2577, approx. 150 x 100 x 3.2 +/- 0.2 mm injection molded specimen) 5.2.1 Molding Shrinkage . After 48 h at 23 +/- 2 C 0.8 - 1.2% 5.2.2 Post Shrinkage (Separate specimens required for each test) . After 48 h at 80 C 0.2 - 0.3% . After 30 min at 120 C 0.0 - 0.4% 5.3 RECYCLING CODE PP+EPDM ENGINEERING MATERIAL SPECIFICATION WSK-M4D698-A2 Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 4 of 4
