1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions Rev 03 2011 06 23 N Status Replaced by WSS-M4D827-B1 A. Pan, APA 2006 11 22 Revised Paragraph 3.8, 3.8.1 Added 3.8.3 L. Schmalz 1991 11 04 Released EP00E01089490000 P. Kuntze Printed copies are uncontrolled Copyright 2011, Ford Global Technol
2、ogies, LLC Page 1 of 5 ABS MOLDING COMPOUND, HIGH HEAT RESISTANT WSK-M4D827-A HIGH IMPACT, LOW GLOSS, INTERIOR NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a low gloss molded in color high impact strength, high heat resistant molding compound based on acryloni
3、trile butadiene styrene (ABS) that has been treated with antistatic and release agents, and UV stabilized for unpainted interior applications. 2. APPLICATION This specification was released originally for material used for visible interior body parts. 3. REQUIREMENTS Material specification requireme
4、nts are to be used for initial qualification of materials. 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Material (WSS-M99P1111-A). 3.4 MOLDING COMPOUND 3.4.1 Melt Flow Rate 10 - 18 g/10 minu
5、tes (I0053O 1133/ASTM D 1238, 220 C, 10 kg) The material shall be dried for min of 2 h 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 mold
6、ed 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 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 accord
7、ing to ISO 294. No annealing allowed. 3.5.2 Density 1.03 - 1.09 g/cm3 (ISO 1183, Method A/ASTM D 792, Method A1) ENGINEERING MATERIAL SPECIFICATION WSK-M4D827-A Printed copies are uncontrolled Copyright 2011, Ford Global Technologies, LLC Page 2 of 5 3.5.3 Tensile Strength at Max Load, min 35 MPa (I
8、SO R 527/ASTM D 638M, 150 x 10 x 4.0 +/- 0.2 mm specimen, 50 mm/minute) 3.5.3.1 Elongation at Break, min 20% (Test Method according to para 3.5.3) 3.5.4 Flexural Modulus, min 2.0 GPa (ISO 178/ASTM D 790M, Method I, Procedure A, 80 x 10 x 4.0 +/- 0.2 mm specimen, 64 mm support span) 3.5.5 Shear Modul
9、us at 23 C 670 - 930 MPa (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 clamps 35 - 40 mm soak time at each temperature interval: 3 minutes minimum).
10、 Additionally, a Shear Modulus vs. Temperature curve shall be plotted for -50 to +120 C temperature range, at 5 C minimum intervals. The plotted curve must be within tolerance range shown on page 5. 3.5.6 Impact Strength, Izod, min (ISO 180, Method A/ASTM D 256, Method A, 80.0 x 10 x 4.0 +/- 0.2 mm
11、specimen, 10 specimens for each test) 3.5.6.1 At 23 +/- 2 C 15 kJ/m2 3.5.6.2 At 0 +/- 2 C 7 kJ/m2 3.5.6.3 At -40 +/- 2 C 4 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 bo
12、x, if not possible, test can be conducted outside, but within 5 s. 3.5.7 Heat Deflection Temperature, min 79 C (ISO 75/ASTM D 648, 120 x 10 x 4.0 +/- 0.2 mm specimen. At 1.82 MPa) 3.5.8 Vicat Softening Temperature, min 97 C (ISO 306, 10 x 10 x 4.0 +/- 0.2 mm specimens. Bath - silicone oil, temp. rai
13、se 50 +/- 5 C/h. Dial gage reset to 0 after addition of 5 kg weight. At 49.0 N load) 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-M4D827-A Printed co
14、pies are uncontrolled Copyright 2011, Ford Global Technologies, LLC Page 3 of 5 3.5.9 Heat Aging Performance (ISO 188/ASTM D 573, 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) 3.5.9.1 Tensile Strength at M
15、ax 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 FLAMMABILITY (ISO 3795) Burn Rate, max 100 mm/minute The specimen size required for material approval is 355 x 100 x 1.9 +/
16、 0.1 mm with a smooth surface. 3.7 FOGGING (SAE J1756, 3 h at 100 C heating, 21 C cooling plate, post test conditioning 1 h and 16 h) Fog Number, min 95 Formation of excessive amounts of clear film or droplets is cause for rejection. 3.8 WEATHERING RESISTANCE After exposure in accordance with 3.8.1
17、 3.8.2 and 3.8.3, the material shall show no color change in excess of specified AATCC rating (AATCC Gray Scale for Evaluating Change in Color, 10 step). In addition, there shall be no cracking, crazing or other deterioration. A slight loss of gloss or chalking will be allowed provided an acceptabl
18、e 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 for final approval-Not required for North America.
19、 3.8.1 Xenon Arc Weatherometer Rating 4 Required Worldwide except North America (SAE J1885, except Black Panel Temperature at 80 C, 300.8 kJ/m2 exposure min, specimen size: 150 x 100 mm min, 3.2 +/- 0.2 mm thick, molded in smooth polished mold) 3.8.2 12 months Florida Rating 4 Not required for North
20、 America (FLTM BI 160-01, 5 south, under glass, specimen size: 150 x 100 mm, min, 3.2 +/- 0.2 mm thick, molded in smooth polished mold) ENGINEERING MATERIAL SPECIFICATION WSK-M4D827-A Printed copies are uncontrolled Copyright 2011, Ford Global Technologies, LLC Page 4 of 5 3.8.3 Filtered Xenon Arc W
21、eatherometer Rating 4 Required for North America (SAE J1885 modified (FLTM BO 116-01), 601.6 kJ/m2 exposure min, specimen size: 150 x 100 mm min, 3.2 +/- 0.2 mm thick, molded in smooth polished mold) 3.9 ODOR, max Rating 2 (SAE J1351/FLTM BO 131-01) 3.10 USE OF REGRIND MATERIAL The addition of regro
22、unded material may be admitted, providing these re-compounds meet the physical property requirements including statistical process control data of the virgin material fixed in this document. Recompound: Compound of max. 20 weight % regrind material based on single reprocessed material and min. 80 we
23、ight % virgin material. The regrind may be contaminated with rests of paint processing. 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 EXPANSION 7 - 10-5/C (ASTM D 69
24、6) 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 . After 48 h at 80 C 0.1 - 0.2% 5.3 MELT VOLUME RATE 10 - 16 cm3/10 minutes (ISO 1133/ASTM D 1238, 220 C, 10 kg) The mater
25、ial shall be dried for min of 2 h at 80 - 85 C in a mechanical convection oven immediately preceding the test. 5.4 HEAT DEFLECTION TEMPERATURE, min 90 C (ISO 75/ASTM D 648, 120 x 10 x 4.0 +/- 0.2 mm specimen. 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 SAE OPTIONAL ENGINEERING MATERIAL SPECIFICATION WSK-M4D827-A Printed copies are uncontrolled Copyright 2011, Ford Global Technologies, LLC Page 5 of 5
