1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions Rev 02 2012 09 04 Revised Changed melt flow and density to report L. Soreide, NA 2005 12 08 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.9, 3.10 & 4 1993 11 02 Released EP00E10258829000 L. Rodigas Controlled document at www.MATS Copyright 2
2、0012, Ford Global Technologies, LLC Page 1 of 5 THERMOPLASTIC POLYOLEFIN ELASTOMER (TEO) WSK-M4D714-A2 27% MINERAL FILLED MOLDING COMPOUND PAINTABLE 1. SCOPE The material defined by this specification is a rigid thermoplastic polyolefin elastomer (TEO) injection molding compound, 27% mineral (talc)
3、filled. This material requires painting to achieve higher surface requirements. 2. APPLICATION This specification was released originally for material used for painted reinforcements of instrument panels on Escort and Fiesta. 3. REQUIREMENTS 3.1 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Materia
4、l suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.2 MOLDING COMPOUND 3.2.1 Melt Flow Rate Report g/ (ISO 1133, 230 C, 2.16 kg) 10 minutes 3.2.2 Filler Content 25 - 32% (ISO 3451/1, Method A, talc filler, 1 h at 850 +/- 50 C
5、 test portion 2 to 2.5 g) 3.3 MOLDED TEST SPECIMEN 3.3.1 Preparation of Test Specimens Unless otherwise specified all tests shall be 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
6、 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 specimens shall be prepared according to ISO 294. No annealing allowed. ENGINEERING MATERIAL SPECIFICATION WSK-M4D714-A2 Copyright 2012, Ford Global Technologies, LLC Page
7、 2 of 5 3.3.2 Density Report g/cm3 (ISO 1183, Method A) 3.3.3 Hardness, Durometer D 64 - 70 (ISO 868, 15 s dwell) 3.3.4 Tensile Strength at Yield 20 MPa min (ISO R 527, 150 minimum x 10 x 4.0 +/- 0.2 mm specimen, 5 mm/min test speed) 3.3.5 Flexural Modulus 2.6 GPa min (ISO 178, 80 x 10 x 4.0 +/- 0.2
8、 mm specimen, 2 mm/min test speed, 64 mm support span) 3.3.6 Shear Modulus at 23 C 1.0 - 1.8 GPa (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 clamp
9、s 35-40 mm. Soak time at each temperature interval - 3 minutes minimum). Additionally, a Shear Modulus versus Temperature curve shall be plotted for -50 to +150 C temperature range, at 5 C minimum intervals. The plotted curve must be within tolerance range shown on page 5. 3.3.7 Impact Strength, Izo
10、d, min (ISO 180/1A, 80 x 10 x 4.0 +/- 0.2 mm specimen, 10 specimens for each test) 3.3.7.1 At 23 +/- 2 C 4.0 kJ/m2 3.3.7.2 At -40 +/- 1 C 1.8 kJ/m2 3.3.7.3 At 10 +/- 2 C 2.8 kJ/m2 The test specimens must be conditioned for minimum of 6 h at the above specified temperature prior to impact test. Low t
11、emperature testing shall be done within the cold box. 3.3.8 Heat Deflection Temperature (ISO 75, 120 x 10 x 4.0 +/- 0.2 mm specimen, 0.32 +/- 0.01 mm deflection) 3.3.8.1 At 1.80 MPa 58 C min 3.3.8.2 At 0.45 MPa 110 C min 3.3.9 Heat Aging Performance (ISO 188, except 150 +/- 50 air changes/h, 1000 h
12、at 120 +/- 2 C. Unaged property values shall be determined at the time of the aged properties determination) ENGINEERING MATERIAL SPECIFICATION WSK-M4D714-A2 Copyright 2012, Ford Global Technologies, LLC Page 3 of 5 3.3.9.1 Tensile Strength at Yield Change +/- 25% (Test Method per para 3.3.4) 3.3.9.
13、2 Impact Strength, Izod Change, max +/- 25% (Test Method per para 3.3.7.1, specimens to be notched before heat aging) 3.4 FOGGING (FLTM BO 116-03, 3 h at 100 C) Fog Number 80 min Formation of clear film or droplets is cause for rejection. 3.5 FLAMMABILITY (ISO 3795) Burn Rate 100 mm/minute max The s
14、pecimen size required for material approval is 355 x 100 x 1.0 +/- 0.1 mm with a smooth surface. 3.6 PAINTABILITY Painted substrate must comply with all requirements of paint performance WSK-M2P167-A. 4. GENERAL INFORMATION The information given below is provided for clarification and assistance in
15、meeting the requirements of this specification. Contact for questions concerning Engineering Material Specifications. 4.1 COEFFICIENT OF LINEAR THERMAL EXPANSION 4-5/ C (ASTM E 228 or TMA, temperature range - 30 to +100 C) 4.2 MOLD SHRINKAGE (ISO 2577, approx. 150 x 100 x 3.2 +/- 0.2 mm injection m
16、olded specimen) 4.2.1 Molding Shrinkage After 48 h at 23 +/- 2 C 0.8 - 1.2% 4.2.2 Post Shrinkage (Separate specimens required for each test) After 48 h at 80 C 0.1 - 0.2% After 30 min at 120 C 0.1 - 0.3% ENGINEERING MATERIAL SPECIFICATION WSK-M4D714-A2 Copyright 2012, Ford Global Technologies, LLC P
17、age 4 of 5 4.3 USE OF REGRIND MATERIAL (Property values of regrind material shall be compared with original virgin material. Regrind: Compound of 20 weight % regrind based on single reprocessed material, free of contaminations and 80 weight % virgin material.) 4.3.1 Melt Flow Rate Change, max +30% (
18、Test method per para 3.2.1) 4.3.2 Tensile Strength at Yield Change +/- 10% (Test method per para 3.3.4) 4.3.3 Flexural Modulus Change +/- 10% (Test method per para 3.3.5) 4.3.4 Impact Strength, Izod Change, max -10% (Test method per para 3.3.7.1) 4.3.5 Heat Deflection Temperature Change +/- 10% (Tes
19、t method per para 3.3.8.1) 5.4 RECYCLING CODE PP+EPDM-TD27 5. SUMMARY OF REVISIONS 2012 09 04 Changed melt flow and density to report Removed (s) designations for six sigma data reporting Re-numbered ENGINEERING MATERIAL SPECIFICATION WSK-M4D714-A2 Copyright 2012, Ford Global Technologies, LLC Page 5 of 5
