1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions Ver. 4 2008 10 08 N-STATUS Replaced by WSB-M4D690-A C. Boese, FNA 2006 02 22 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.10, 3.11 & 4 1993 03 01 Released EP00E10258809000 P. Kuntze Printed copies are uncontrolled Copyright 2008, Ford Global
2、 Technologies, LLC Page 1 of 6 ABS, HIGH HEAT RESISTANT MOLDING COMPOUND, EXTERIOR WSK-M4D792-A3 NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a high heat resistant molding compound based on acrylonitrile butadiene styrene (ABS). 2. APPLICATION This specificati
3、on was released originally for material used for self-colored exterior body parts. 3. REQUIREMENTS 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M991111-A). 3.1.1 All requireme
4、nts 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 2.5 - 6 g/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 pr
5、eceding 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-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
6、 +/- 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. 3.5.2 Density 1.04 - 1.12 g/cm3(ISO 1183, Method A) ENGINEERING MATERIAL SPECIFICATIONWSK-M4D792-A3 Printed
7、copies are uncontrolled Copyright 2008, Ford Global Technologies, LLC Page 2 of 6 (s) 3.5.3 Tensile Strength at Max Load, min 50 MPa (ISO R 527, 150 minimum x 10 x 4.0 +/- 0.2 mm specimen, 50 mm/min test speed) (s) 3.5.3.1 Elongation at Break, min 8% (Test Method according to para 3.5.3) (s) 3.5.4 F
8、lexural Modulus, min 2.5 GPa (ISO 178, 80 x 10 x 4.0 +/- 0.2 mm specimen, 2 mm/min test speed, 64 mm support span) 3.5.5 Shear Modulus at 23 C 950 - 1450 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
9、 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 versus Temperature curve shall be plotted for -50 to +120 C temperature range, at 5 C minimum intervals. The plotted curve must be withi
10、n tolerance range shown on page 6. (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 8.0 kJ/m23.5.6.2 At -40 +/- 1 C 3.5 kJ/m23.5.6.3 At -10 +/- 2 C 5.5 kJ/m2The test specimens must be conditioned for minimum of 6 h
11、 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 89 C (ISO 75, 120 x 10 x 4.0 +/- 0.2 mm specimen, edgewise, 0.32 +/- 0.01 mm deflection. At 1.80 MPa) All specimens dry as molded. If not te
12、sted immediately after molding, specimens must be stored in a sealed, moisture-proof container filled with silica gel. ENGINEERING MATERIAL SPECIFICATIONWSK-M4D792-A3 Printed copies are uncontrolled Copyright 2008, Ford Global Technologies, LLC Page 3 of 6 (s) 3.5.8 Vicat Softening Temperature, min
13、110 C (ISO 306, 10 x 10 x 4.0 +/- 0.2 mm specimens. Bath - silicone oil, temperature 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 immediately after molding, specimens must be stored in a sealed, moisture-proof contai
14、ner 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) 3.5.9.1 Tensile Strength at Max Load Change +/- 15% (Test Method per para 3.5.3) 3.5.
15、9.2 Impact Strength, Izod Change, max +/- 25% (Test Method per para 3.5.6.1, specimens to be notched before heat aging) 3.6 FOGGING (FLTM BO 116-03, 3 h at 100 C heating, 21 C cooling plate) Fog Number, min 90 Formation of clear film, droplets or crystals is cause for rejection. 3.7 FLAMMABILITY (IS
16、O 3795) Burn Rate, max 100 mm/minute The specimen size required for material approval is 355 x 100 x 1.9 +/- 0.1 mm with a smooth surface. 3.8 WEATHERING RESISTANCE After exposure in accordance with 3.8.1, 3.8.2, and 3.8.3, the material shall show no color change in excess of specified Gray Scale ra
17、ting (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 and/or polishing with Ford car polish (auto wax) after the outdoor
18、 exposure, at permission of the affected Product Development Materials Activity. All initial approvals will be based on the preliminary Weatherometer exposure, pending Florida and Arizona exposure results for final approval. ENGINEERING MATERIAL SPECIFICATIONWSK-M4D792-A3 Printed copies are uncontro
19、lled Copyright 2008, Ford Global Technologies, LLC Page 4 of 6 3.8.1 Xenon Arc Weatherometer Rating 4 (SAE J1960, 660 kJ/m2exposure 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 12 months Arizona (NAAO only) (SAE
20、J1976, 5 south, direct weathering inland, specimen size: 150 x 100 mm, minimum, 3.2 +/- 0.2 mm thick, molded in smooth polished mold) 3.8.3 24 months Florida Rating 3-4 24 months Arizona (NAAO only) (SAE J1976, 5 south, direct weathering inland, specimen size: 150 x 100 mm, minimum, 3.2 +/- 0.2 mm t
21、hick, molded in smooth polished mold) 3.9 RESISTANCE TO WHITENING Rating 4 (EAO applications only) (SAE J1960, 660 kJ/m2exposure minimum, specimen size: 150 x 100 mm minimum, 3.2 +/- 0.2 mm thick, grained on one side, reverse ungrained, follow with immersion for 5 minutes at 85 +/- 2 C in water and
22、soap* (ratio 95:5 by volume) The material shall show no color change in excess of specified Gray Scale rating (AATCC Evaluation Procedure 1/ISO 150-A02) after 5 minutes and 24 h waiting time after removal from the water and soap solution. *Soap according to Ford stock code number 800.51211 or equiva
23、lent. 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 7.5-5/C (ASTM E 228 or TMA, temperature range -30 to +30 C) 5.2 MOLD SHRINKAGE (ISO 2577, approx. 150 x
24、 100 x 3.2 +/- 0.2 mm injection molded specimen) 5.2.1 Molding Shrinkage . After 48 h at 23 +/- 2 C 0.5 - 0.8% ENGINEERING MATERIAL SPECIFICATIONWSK-M4D792-A3 Printed copies are uncontrolled Copyright 2008, Ford Global Technologies, LLC Page 5 of 6 5.2.2 Post Shrinkage (Separate specimens required f
25、or each test) . After 48 h at 80 C 0.05 - 0.15% 5.3 MELT VOLUME RATE 2.5 - 6.0 g/10 minutes (ISO 1133, 220 C, 10 kg) 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 98 C (ISO 75, 120 x
26、 10 x 4.0 +/- 0.2 mm specimen, edgewise, 0.32 +/- 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 SPECIFICATIONWSK-M4D792-A3 Printed copies are uncontrolled Copyright 2008, Ford Global Technologies, LLC Page 6 of 6
