1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2010 07 14 N-STATUS No replacement A. Pan, APA 2005 08 12 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.10, 3.11 & 4 1999 06 29 Activated M. Masserant Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 1 of 6 T
2、HERMOPLASTIC POLYOLEFIN ELASTOMER (TEO) WSS-M4D550-A8 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 compou
3、nd, mineral (talc) filled. 2. APPLICATION This specification was released originally for material used for 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 Produ
4、ction 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 6.0 - 8.0 (ISO 1133, 230 C, 2.16 kg) g/10 minutes Final approval of a specific material melt flo
5、w rate 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 19.5 - 23.5% (ISO 3451/1, Method A, talc filler, 1 h at 850 +/- 50 C, test port
6、ion 2 to 2.5 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 injecti
7、on molded one-end gated test specimens. ENGINEERING MATERIAL SPECIFICATIONWSS-M4D550-A8Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 2 of 6 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 m
8、m Specimens 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 1.039 - 1.081 (ISO 1183, Method A) g/cm3The density tolerance for any one supplier should be +/- 10% bas
9、ed on the recorded density for their originally approved production samples. 3.5.3 Hardness, Durometer D 58 - 68 (ISO 868, 15 s dwell) (s) 3.5.4 Tensile Strength at Yield, min 20 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 1.6 GPa (
10、ISO 178, 80 x 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 s
11、pecimen A. Specimen 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 pa
12、ge 9. (s) 3.5.7 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 temperatu
13、re prior to impact test. Low temperature testing shall be done within the cold box. ENGINEERING MATERIAL SPECIFICATIONWSS-M4D550-A8Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 3 of 6 (s) 3.5.8 Heat Deflection Temperature, min (ISO 75, 120 x 10 x 4.0 +/- 0.2 mm s
14、pecimen, 0.32 +/- 0.01 mm deflection) 3.5.8.1 At 1.80 MPa 50 C 3.5.8.2 At 0.45 MPa 102 C 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 Streng
15、th at +/- 25% 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 and 16 h) Fog Number, min 90 F
16、ormation of clear film, 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
17、, Dynatup 3.1 mm thickness 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) ENGINEERING MATERIAL SPECIFICATIONWSS-M4D550-A8Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 4 of 6 3.8.2 Weatheri
18、ng 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 specified Gray Scale rating (AATCC Evaluation Procedure 1/ISO 105-A02). In addition, there shall be no cracking, crazing or other deterioration
19、. A slight loss of gloss 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 F
20、lorida exposure results 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 s
21、ize: 150 x 100 mm, min, 3.2 +/- 0.2 mm thick, molded in smooth polished mold) 3.9 RESISTANCE TO SCRATCHING No visible (FLTM BN 108-13, grain: whitening at 15 N Cordwain or equivalent, 1 mm scratch scratch balls) 5. GENERAL INFORMATION The information given below is provided for clarification and ass
22、istance in meeting the requirements of this specification. 5.1 COEFFICIENT OF LINEAR THERMAL EXPANSION 5.0 - 10.0 (ASTM E 228 or TMA, temperature range -30 to -5/ C +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 . Aft
23、er 48 h at 23 +/- 2 C 0.6 - 1.1% ENGINEERING MATERIAL SPECIFICATIONWSS-M4D550-A8Printed copies are 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% 5.4 RECYCLING CODE PP+EPDM-TD ENGINEERING MATERIAL SPECIFICATIONWSS-M4D550-A8Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 6 of 6
