1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions Rev 04 2012 11 08 A N Status No Replacement Named L. Soreide, NA 2008 08 20 A2 - N-STATUS WSS-M4D908-A2 MADE N-STATUS replaced by WSB-M4D908-A C. Boese, FNA 1994 11 02 Released NB00I10043054373 M. Trapp Controlled document at www.MATS Copyrig
2、ht 2012, Ford Global Technologies, LLC Page 1 of 6 ACRYLONITRILE BUTADIENE STYRENE (ABS), WSB-M4D908-A POST CONSUMER RECYCLATE MOLDING COMPOUND NOT TO BE USED FOR NEW DESIGN ACRYLONITRILE BUTADIENE STYRENE (ABS), HEAT RESISTANT, WSS-M4D908-A2 POST CONSUMER RECYCLATE MOLDING COMPOUND NOT TO BE USED F
3、OR NEW DESIGN 1. SCOPE WSB-M4D908-A1: The material defined by this specification is a thermoplastic molding compound based on acrylonitrile/butadiene/styrene (ABS) containing a minimum of 25% post consumer recycled ABS. WSB-M4D908-A2: The material defined by this specification is a higher heat resis
4、tant thermoplastic molding compound based on acrylonitrile/butadiene/styrene (ABS) containing a minimum of 25% post consumer recycled ABS. 2. APPLICATION WSB-M4D908-A1: This specification was released originally for material used for a console base. This material is recommended for non-exposed appli
5、cations only. WSB-M4D908-A2: This specification was released originally for material used for painted radiator grilles. 3. REQUIREMENTS 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materials
6、 (WSS-M99P1111-A). 3.1.1 All requirements of these specifications, identified by symbol(s), shall be met with data representing 3 sigma values. 3.4 MOLDING COMPOUND A A2 (s) 3.4.1 Melt Flow Rate, g/10 minutes 1.0 - 7.1 3.0 - 10.0 (ISO 1133, 230 C, 3.8 kg, for 75% Virgin +25% PCR) The material shall
7、be dried for 5 h minimum at 100 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-end gated test specimens. ENGINEERING MATERIAL SPECIFICATIO
8、N WSB-M4D908-A/A2 Copyright 2012, Ford Global Technologies, LLC Page 2 of 6 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/o
9、r B. The specimens shall be prepared according to ISO 294. No annealing allowed. A A2 3.5.2 Density, g/cm, min 1.04 1.02 (ISO 1183, Method A) (s) 3.5.3 Tensile Strength at Yield, MPa, min 35 36 (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 Br
10、eak, %, min 6 9 (Test Method according to para 3.5.3) (s) 3.5.4 Flexural Modulus, GPa, min 1.90 2.3 (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, MPa 790- 820- (ASTM D 4065, forced constant -1200 -1220 amplitude, fixed frequency of
11、 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 versus Temperature curve shall be plotted for -50 to +
12、100 C temperature range, at 5 C minimum intervals. The plotted curve must be within tolerance range shown on page 5(A) and 6(A2). (s) 3.5.6 Impact Strength, Izod, kJ/m, 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 13.4 17.4 3.5.6.2 At -40 +/-
13、1 C 3.3 4.8 3.5.6.3 At -20 +/- 2 C 4.7 7.0 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. ENGINEERING MATERIAL SPECIFICATION WSB-M4D908-A/A2 Copyright 2012, Ford Global Tech
14、nologies, LLC Page 3 of 6 (s) 3.5.7 Heat Deflection Temperature, C, min (ISO 75, 120 x 10 x 4.0 +/- 0.2 mm specimen, edgewise, 0.32 +/- 0.01 mm deflection) A A2 3.5.7.1 At 1.80 MPa 69 75 3.5.7.2 At 0.45 MPa 83 88 All specimens dry as molded. If not tested immediately after molding, specimens must be
15、 stored in a sealed, moisture-proof container filled with silica gel. (s) 3.5.8 Vicat Softening Temperature, C, min 91 95 (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
16、 dry as molded. If not tested immediately after molding, specimens must be stored in a sealed, moisture-proof container filled with silica gel. 3.5.9 Heat Aging Performance (A & A2) (ISO 188, except 150 +/- 50 air changes/h, 1000 h at 80 +/- 2 C. After heat aging test specimens are to be conditioned
17、 in a desiccator for 3 - 5 h at 23 +/- 2 C. Unaged property values shall be determined at the time of the aged properties determination) 3.5.9.1 Tensile Strength at Yield Percent Change +/- 25% 3.5.9.2 Impact Strength, Izod Change +/- 25% (Test Method per para 3.5.6.1, specimens to be notched before
18、 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. ENGINEERING MATERIAL SPECIFICATION WSB-M4D908-A/A2 Copyright 2012, Ford Global Technologies, LLC Page 4 of 6 3.7 FLAMMABILITY (
19、ISO 3795/SAE J369) Burn Rate, max 100 mm/minute The specimen size required for material approval is 355 x 100 x 3.8 +/- 0.1 mm with a smooth surface. 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of these specifications. 5
20、.1 COEFFICIENT OF LINEAR THERMAL EXPANSION (ASTM E 831 (TMA), temperature range: 23 to 80 C 8.33-5/ C -30 to +30 C 6.97-5/ 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 0.63% 5.2.2 Post Shrinkage (Sepa
21、rate specimens required for each test) . After 48 h at 80 C 0.47% . After 30 min at 120 C 0.80% 5.3 MELT FLOW RATE 3.6 to 5.0 g/10 minutes (ISO 1133, 230 C, 3.8 kg, 100% PCR) 5.4 RECYCLING CODE ABS ENGINEERING MATERIAL SPECIFICATION WSB-M4D908-A/A2 Copyright 2012, Ford Global Technologies, LLC Page 5 of 6 ENGINEERING MATERIAL SPECIFICATION WSB-M4D908-A/A2 Copyright 2012, Ford Global Technologies, LLC Page 6 of 6
