1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2010 07 14 N-STATUS No replacement A. Pan, APA 2005 09 07 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.9, 3.10 & 4 1998 03 31 Activated J. Chu Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 1 of 6 THERMOPL
2、ASTIC POLYOLEFIN ELASTOMER (TEO) WSS-M4D550-A7 MINERAL FILLED, HIGH IMPACT MOLDING COMPOUND, PAINTABLE OR MOLDED-IN COLOR NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a high impact, rigid thermoplastic polyolefin elastomer (TEO) injection molding compound, min
3、eral (talc) filled. 2. APPLICATION This specification was released originally for material used for painted or unpainted instrument panel. 3. REQUIREMENTS 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For P
4、roduction Materials (WSS-M99P1111-A). 3.1.1 All requirements of this specification, identified by symbol(s), shall be met with data representing 3 sigma values. 3.4 MOLDING COMPOUND (s) 3.4.1 Melt Flow Rate g/10 minutes (ISO 1133, 230 C, 2.16 kg) Final approval of a specific material melt flow rate
5、for production shipments should be made by the affected manufacturing activity. In all cases, the melt flow rate should be within process limits as identified on the material control plan. (s) 3.4.2 Filler Content 0 - 28% (ISO 3451/1, Method A, talc filler, 1 h at 850 +/- 50 C, test portion 2 to 2.5
6、 g) The filler content tolerance for any one supplier should be +/- 10% based on the recorded filler content for their originally approved production samples. 3.5 MOLDED TEST SPECIMEN 3.5.1 Preparation of Test Specimens Unless otherwise specified all tests shall be carried out on injection molded on
7、e-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 ENGINEERING MATERIAL SPECIFICATIONWSS-M4D550-A7Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 2 of 6 Specimens
8、with shorter dimensions shall be cut from the center portion of the test specimen A and/or B. The specimens shall be prepared according to ISO 294. No annealing allowed. 3.5.2 Density 0.89 - 1.12 (ISO 1183, Method A) g/cm3The density tolerance for any one supplier should be +/- 10% based on the reco
9、rded density for their originally approved production samples. 3.5.3 Hardness, Durometer D 55 - 65 (ISO 868, 15 s dwell) (s) 3.5.4 Tensile Strength at Yield, min 15 MPa (ISO R 527, 150 min x 10 x 4.0 +/- 0.2 mm specimen, 5 mm/minute test speed) (s) 3.5.5 Flexural Modulus, min 1.7 GPa (ISO 178, 80 x
10、10 x 4.0 +/- 0.2 mm specimen, 2 mm/minute test speed, 64 mm support span) 3.5.6 Shear Modulus at 23 C 0.58 - 1.0 GPa (ASTM D 4065, forced constant amplitude, fixed frequency of 1 Hz +/- 15%, strain level below 1%. Specimen approximately 60 x 10 x 4.0 +/- 0.2 mm cut from the center of specimen A. Spe
11、cimen length between clamps 35 - 40 mm. Soak time at each temperature interval - 3 minutes min. Additionally, a Shear Modulus versus Temperature curve shall be plotted for -50 to +150 C temperature range, at 5 C min intervals. The plotted curve must be within tolerance range shown on page 9. (s) 3.5
12、7 Impact Strength, Izod, 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 18.3 kJ/m23.5.7.2 At -40 +/- 1 C 1.9 kJ/m23.5.7.3 At 10 +/- 2 C 4.5 kJ/m2The test specimens must be conditioned for min of 6 h at the above specified temperature prior to i
13、mpact 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 1.80 MPa 46 C 3.5.8.2 At 0.45 MPa 93 C ENGINEERING MATERIAL SPECIFICATIONWSS-M4D550-A7Printed copies
14、are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 3 of 6 3.5.9 Heat Aging Performance (ISO 188, except 150 +/- 50 air changes/ h, 1000 h at 120 +/- 2 C. Unaged property values shall be determined at the time of the aged properties determination) 3.5.9.1 Tensile Strength at +/- 25%
15、Yield Change (Test Method per para 3.5.4) 3.5.9.2 Impact Strength, Izod -15% Change, max (Test Method per para 3.5.7.1, specimens to be notched before heat aging) 3.6 FOGGING (SAE J1756, 3 h at 100 C heating, 21 C cooling plate, post test conditioning 1 h) Fog Number, min 90 Formation of clear film,
16、 droplets or crystals is cause for rejection. 3.7 FLAMMABILITY (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. 3.8 SPECIAL REQUIREMENTS 3.8.1 Instrumented Impact Strength (ASTM D 3763, Dynatup 3.1 mm thickn
17、ess x 101.6 mm diameter, 12.7 mm tup, 6.7 m/s impact speed) At 23 +/- C 18J (ductile failure) At 0+/- C 22J (ductile failure) 3.8.2 Weathering Resistance for Molded in Color After exposure in accordance with para 3.8.2.1 and 3.8.2.2, the material shall show no fading or color change in excess of spe
18、cified Gray Scale rating (AATCC Evaluation Procedure 1/ISO 105-A02). In addition, there shall be no cracking, crazing or other deterioration. ENGINEERING MATERIAL SPECIFICATIONWSS-M4D550-A7Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 4 of 6 A slight loss of glos
19、s or chalking will be allowed provided an acceptable appearance can be achieved by washing with mild detergents and water (ratio 5:95 by volume), or equivalent, after the Florida exposure. All initial approvals will be based on the preliminary Weatherometer exposure, pending Florida exposure results
20、 for final approval. 3.8.2.1 Xenon Arc Weatherometer Rating 4 - 5 (SAE J1885, 1240 kJ/m2exposure min, specimen size: 150 x 100 mm min, 3.2 +/- 0.2 mm thick, molded in smooth polished mold) 3.8.2.2 12 months Florida Rating 4 - 5 (FLTM BI 160-01, 5 south, under glass, specimen size: 150 x 100 mm, min,
21、 3.2 +/- 0.2 mm thick, molded in smooth polished mold) 3.8.3 Paintability for Painted Parts Painted substrate must comply with all requirements of paint performance. 3.8.4 Scratch Resistance for Molded in Color Molded in color substrate must comply with all requirements of scratch performance. 3.8.5
22、 Gloss Level for Molded in Color Molded in color substrate must comply with all requirements of gloss performance. 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specification. 5.1 COEFFICIENT OF LINEAR THERMAL EXPA
23、NSION 5.0 - 10.0 -5/ C (ASTM E 228 or TMA, temperature range -30 to +100 C) 5.2 MOLD SHRINKAGE (ISO 2577, approximately 150 x 100 x 3.2 +/- 0.2 mm injection molded specimen) 5.2.1 Molding Shrinkage . After 48 h at 23 +/- 2 C 0.6 - 1.1% ENGINEERING MATERIAL SPECIFICATIONWSS-M4D550-A7Printed copies ar
24、e uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 5 of 6 5.2.2 Post Shrinkage (Separate specimens required for each test) . After 48 h at 80 C 0.8 - 1.3% . After 30 minutes at 120 C 0.8 - 1.4% 5.3 USE OF REGRIND MATERIAL (Property values of regrind material shall be compared with ori
25、ginal virgin material) Regrind: Compound of 20 weight % regrind based on single reprocessed material, free of contaminations and 80 weight % virgin material. 5.3.1 Melt Flow Rate Change, max +30% (Test method per para 3.4.1) 5.3.2 Tensile Strength at Yield Change +/- 10% (Test method per para 3.5.4)
26、 5.3.3 Flexural Modulus Change +/- 10% (Test method per para 3.5.5) 5.3.4 Impact Strength, Izod Change, max -10% (Test method per para 3.5.7.1) 5.3.5 Heat Deflection Temperature Change +/- 10% (Test method per para 3.5.8.1) 5.4 RECYCLING CODE PP+EPDM-TD ENGINEERING MATERIAL SPECIFICATIONWSS-M4D550-A7Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 6 of 6
