1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions 2008 08 20 N-STATUS Replaced by WSS-M4D713-A9 K. Mueller 2005 12 08 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.8, 3.9 & 4 1999 02 12 Activated J. Crist, T.A. Honey Printed copies are uncontrolled Copyright 2008, Ford Global Technologies,
2、LLC Page 1 of 5 THERMOPLASTIC POLYOLEFIN ELASTOMER (TEO) WSS-M4D713-A6 9% GLASS FILLED, COLOR PIGMENTED, UV STABILIZED, EXTERIOR NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a glass filled, high impact rigid thermoplastic polyolefin elastomer (TPO) injection m
3、olding compound. This material is UV stabilized and color pigmented for exterior use. 2. APPLICATION This specification was released originally for material used for exterior light truck box rail moldings. 3. REQUIREMENTS 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part
4、 producers must conform to the Companys Standard Requirements For Production 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 3 - 10 g/10 minutes (ISO
5、1133, 230 C, 2.16 kg) (s) 3.4.2 Filler Content 7 - 12% (ISO 3451-1, Method A, talc filler, 3 h at 565 C +/- 25 C, test portion 4 - 5 g) 3.5 MOLDED TEST SPECIMEN 3.5.1 Preparation of Test Specimens Unless otherwise specified all tests shall be carried out on injection molded one-end gated test specim
6、ens. ENGINEERING MATERIAL SPECIFICATION WSS-M4D713-A6 Printed copies are uncontrolled Copyright 2008, Ford Global Technologies, LLC Page 2 of 5 The following dimensions are required: A. 150 min x 10 x 4.0 +/- 0.2 mm (Tensile Bar, ISO 3167) B. 150 x 100 x 4.0 +/- 0.2 mm (ISO/DIS 294-3) Test specimen
7、A shall be molded using molding conditions defined in ISO 294. Specimens with shorter dimensions shall be cut from the center of the specimen A. No annealing allowed. 3.5.2 Density 0.95 - 1.09 (ISO 1183, Method A) g/cm3 3.5.3 Hardness, Durometer D 51 - 63 (ISO 868, 15 s dwell) (s) 3.5.4 Tensile Stre
8、ngth at Yield, min 16 MPa (ISO 527-1 and ISO 527-2, 150 min x 10 x 4.0 +/- 0.2 mm specimen, test speed: 50 mm/minute) (s) 3.5.4.1 Elongation at Yield, min 11% (Test Method according to para 3.5.4) (s) 3.5.5 Flexural Modulus, min 565 MPa (ISO 178, 80 x 10 x 4.0 +/- 0.2 mm specimen, 2 mm/minute test s
9、peed, 64 mm support span) 3.5.6 Shear Modulus at 23 C 290 - 490 MPa (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. Specimen length between clamps 35 - 40 mm. Soak time
10、 at each temperature interval - 3 minutes min). Additionally, a shear modulus vs. temperature curve shall be plotted for -50 C to +150 C temperature range, at 5 C min intervals. The plotted curve must be within tolerance range granted on the original material approval and it shall constitute the ref
11、erence standard for materials supplied to this specification and shall be kept on file at the designated material laboratory and be available on request. (s) 3.5.7 Impact Strength, Izod, min (ISO 180/1A, 80 x 10 x 4.0 +/- 0.2 mm specimen use center section of specimen A, 10 specimens for each test)
12、3.5.7.1 At 23 C +/- 2 C No Break ENGINEERING MATERIAL SPECIFICATION WSS-M4D713-A6 Printed copies are uncontrolled Copyright 2008, Ford Global Technologies, LLC Page 3 of 5 3.5.7.2 At -40 C +/- 1 C 3 kJ/m2 3.5.7.3 At 0 C +/- 2 C 2 kJ/m2 The test specimen must be conditioned for min of 6 h at the abov
13、e specified temperature prior to impact test. Low temperature testing shall be done within the cold chamber, if not possible, test may be conducted outside, but within 5 s. (s) 3.5.8 Heat Deflection Temperature, min 32 C (ISO 75-1 and ISO 75-2, 80 x 10 x 4.0 +/- 0.2 mm specimen use center section of
14、 specimen A, flatwise, 0.34 +/- 0.1 mm deflection. At 1.80 MPa) 3.5.9 Heat Aging Performance (ISO 188, except 150 +/- 50 air changes/h, 1000 h at 120 C +/- 2 C. Unaged property values shall be determined at the time of the aged properties determination) 3.5.9.1 Tensile Strength at +/- 20% Yield Chan
15、ge (Test Method per para 3.5.4) 3.5.9.2 Impact Strength, Izod +/- 25% Change (Test Method per para 3.5.7.1, specimens to be notched before heat aging) 3.6 FLAMMABILITY (ISO 3795/SAE J369) Burn Rate, max 100 mm/minute The specimen size required for material approval is 355 x 100 x 1.0 +/- 0.1 mm with
16、 a smooth surface. 3.7 WEATHERING RESISTANCE After exposure in accordance with para 3.8.1, 3.8.2, and 3.8.3, the material shall show no 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 deterior
17、ation. A slight loss of gloss or chalking will be allowed provided an acceptable appearance can be achieved by washing and/or polishing with Ford car polish (auto wax) after the outdoor exposure, at permission of the affected Product Development Materials Activity. ENGINEERING MATERIAL SPECIFICATION
18、 WSS-M4D713-A6 Printed copies are uncontrolled Copyright 2008, Ford Global Technologies, LLC Page 4 of 5 All initial approvals will be based on the preliminary Weatherometer exposure, pending Florida and Arizona exposure results for final approval. 3.7.1 Xenon Arc Weatherometer Rating 4 - 5 (SAE J19
19、60, 2500 kJ/m2 exposure min, specimen size: 150 x 100 mm min, 3.2 +/- 0.2 mm thick, molded in smooth polished mold) 3.7.2 12 months Florida Rating 4 - 5 12 months Arizona (SAE J1976, 5 south, direct weathering inland, specimen size: 150 x 100 mm, min, 3.2 +/- 0.2 mm thick, molded in smooth polished
20、mold) 3.7.3 24 months Florida Rating 4 - 5 24 months Arizona (SAE J1976, 5 south, direct weathering inland, specimen size: 150 x 100 mm, min, 3.2 +/- 0.2 mm thick, molded in smooth polished mold) 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeti
21、ng the requirements of this specification. 5.1 COEFFICIENT OF LINEAR THERMAL EXPANSION 7.0-5/ C (ASTM D 831 or TMA, temperature range -30 C to 30 C) 5.2 MOLD SHRINKAGE (ISO 2577, approximately 150 x 100 x 3.2 mm +/- 0.2 mm injection molded specimen) 5.2.1 Molding Shrinkage . After 48 h at 23 C +/- 2
22、 C 0.7 - 0.9% 5.2.2 Post Shrinkage (Separate specimens required for each test) . After 30 minutes at 120 C +/- 2 C 1.4 - 1.8% 5.3 HEAT DEFLECTION TEMPERATURE 65 C (ISO 75-1 and ISO 75-2, 80 x 10 x 4.0 +/- 0.2 mm specimen use center section of specimen A, flatwise, 0.34 +/- 0.1 mm deflection. At 0.45 MPa) 5.4 RECYCLING CODE PP+EPDM ENGINEERING MATERIAL SPECIFICATION WSS-M4D713-A6 Printed copies are uncontrolled Copyright 2008, Ford Global Technologies, LLC Page 5 of 5
