1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions Rev 03 2011 06 23 N Status Replaced by WSS-M4D827-B1 A. Pan, APA 2006 01 12 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.8, 3.9 & 4 1990 04 02 Released EP00E01031534000 P. Kuntze Printed copies are uncontrolled Copyright 2011, Ford Global T
2、echnologies, LLC Page 1 of 5 ABS MOLDING COMPOUND, HIGH HEAT RESISTANT WSK-M4D745-A HIGH IMPACT STRENGTH, INTERIOR NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a molded in color high impact strength, high heat resistant molding compound based on acrylo-nitrile
3、-butadiene-styrene (ABS) that has been antistatic treated and UV stabilized for unpainted interior applications. 2. APPLICATION This specification was released originally for material used for visible interior body parts. 3. REQUIREMENTS 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material su
4、ppliers and part 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 6 - 12 g/
5、10 minutes (ISO 1133, 220 C, 10 kg) The material shall be dried for 2 h minimum at 80 - 85 C in a mechanical convection oven immediately preceding the test. 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-
6、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 specimens shall be prepared according to
7、ISO 294. No annealing allowed. ENGINEERING MATERIAL SPECIFICATION WSK-M4D745-A Printed copies are uncontrolled Copyright 2011, Ford Global Technologies, LLC Page 2 of 5 3.5.2 Density 1.03 - 1.10 g/cm3 (ISO 1183, Method A) (s) 3.5.3 Tensile Strength at Max Load, min 38 MPa (ISO R 527, 150 min x 10 x
8、4.0 +/- 0.2 mm specimen, 50 mm/minute) 3.5.3.1 Elongation at Break, min 8% (Test Method according to para 3.5.3) (s) 3.5.4 Flexural Modulus, min 2.1 GPa (ISO 178, 80 x 10 x 4.0 +/- 0.2 mm specimen, 64 mm support span) 3.5.5 Shear Modulus at 23 C 0.8 - 1.2 GPa (ASTM D 4065, forced constant amplitude,
9、 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 mm. Soak time at each temperature interval - 3 minutes minimum). Additionally, a Shear Modulus vs. Temperature curve shall be plo
10、tted for -50 to +120 C temperature range, at 5 C minimum intervals. The plotted curve must be within tolerance range shown on page 5. (s) 3.5.6 Impact Strength, Izod, min (ISO 180/1A, 80 x 10 x 4.0 +/- 0.2 mm specimen, 10 specimens for each test) 3.5.6.1 At 23 +/- 2 C 17 kJ/m2 3.5.6.2 At -40 +/- 2 C
11、 6 kJ/m2 3.5.6.3 At 0 +/- 2 C 9 kJ/m2 The test specimens must be conditioned for minimum of 6 h at the above specified temperature prior to impact test. Low temperature testing shall be done within the cold box. (s) 3.5.7 Heat Deflection Temperature, min 80 C (ISO 75, 120 x 10 x 4.0 +/- 0.2 mm speci
12、men, 0.32 +/- 0.01 mm deflection). At 1.80 MPa) All specimens dry as molded. If not tested immediately after molding, specimens must be stored in a sealed, moisture-proof container filled with silica gel. ENGINEERING MATERIAL SPECIFICATION WSK-M4D745-A Printed copies are uncontrolled Copyright 2011,
13、 Ford Global Technologies, LLC Page 3 of 5 (s) 3.5.8 Vicat Softening Temperature, min 96 C (ISO 306, 10 x 10 x 4.0 +/- 0.2 mm specimens. Bath - silicone oil, temp. raise 50 +/- 5 C/h. Dial gage reset to 0 after addition of 5 kg weight. At 50 N load). All specimens dry as molded. If not tested immedi
14、ately after molding, specimens must be stored in a sealed, moisture-proof container filled with silica gel. 3.5.9 Heat Aging Performance (ISO 188, except 150 +/- 50 air changes/h, 1000 h at 80 +/- 2 C. Unaged property values shall be determined at the time of the aged properties determination) 3.5.9
15、.1 Tensile Strength at Max Load Change +/- 15% (Test Method per para 3.5.3) 3.5.9.2 Impact Strength, Izod Change, max -35% (Test Method per para 3.5.6.1, specimens to be notched before heat aging) 3.6 FOGGING (FLTM BO 116-03) Fog Number, min 95 Formation of a clear film, droplets or crystals is caus
16、e 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 WEATHERING RESISTANCE After exposure in accordance with 3.8.1 and 3.8.2 the material shall show no fading or color chang
17、e 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. A slight loss of gloss or chalking will be allowed provided an acceptable appearance can be achieved by washing with mild detergents and wat
18、er (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 for final approval. ENGINEERING MATERIAL SPECIFICATION WSK-M4D745-A Printed copies are uncontrolled Copyright 2011, Fo
19、rd Global Technologies, LLC Page 4 of 5 3.8.1 Xenon Arc Weatherometer Rating 4 (SAE J1885, except Black Panel Temperature at 80 C, 300 kJ/m2 exposure minimum, specimen size: 150 x 100 mm minimum, 3.2 +/- 0.2 mm thick, molded in smooth polished mold) 3.8.2 12 Months Florida Rating 4 (FLTM BI 160-01,
20、5 south, under glass, specimen size: 150 x 100 mm minimum, 2.0 +/- 0.2 mm thick molded in smooth polished mold) 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 EXPANSI
21、ON 7 10-5/ C (ASTM E 228 or TMA, temperature range -20 to +40 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 0.4 - 0.8% 5.2.2 Post Shrinkage (Separate specimens required for each test) . After 48 h at
22、80 C 0.1 - 0.2% 5.3 MELT VOLUME RATE (ISO 1133, 220 C, 10kg) 7 - 12.5 g/10 minutes Note: The material shall be dried for 2 h minimum at 80 - 85 C in a mechanical convection oven immediately preceding the test. 5.4 Heat Deflection Temperature, min 92 C (ISO 75, 120 x 10 x 4.0 +/- 0.2 mm specimen, 0.3
23、2 +/- 0.01 mm deflection). At 0.45 MPa) All specimens dry as molded. If not tested immediately after molding, specimens must be stored in a sealed, moisture-proof container filled with silica gel. 5.5 RECYCLING CODE ABS ENGINEERING MATERIAL SPECIFICATION WSK-M4D745-A Printed copies are uncontrolled Copyright 2011, Ford Global Technologies, LLC Page 5 of 5
