1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions Rev 02 2012 05 14 N Status Replaced by WSS-M4D836-B1/B2 C. McComb, NA 2006 04 12 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.8, 3.9 & 4 1992 04 01 Released EP00E10176266000 P. Kuntze Controlled document at www.MATS Copyright 2012, Ford Glo
2、bal Technologies, LLC Page 1 of 5 ABS, HIGH HEAT, ELECTROPLATING GRADE MOLDING WSK-M4D836-A COMPOUND NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a high flow, high heat electroplating grade of molding compound based on acrylonitrile/butadiene/ styrene (ABS). 2
3、. APPLICATION This specification was released originally for material used for electroplated 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-M99P1111-A). 3
4、.4 MOLDING COMPOUND 3.4.1 Melt Flow Rate 19 - 28 g/ (ISO 1133/ASTM D 1238, 220 C, 10 kg) 10 minutes 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 sp
5、ecified 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 +/- 0.2 mm Specimens with shorter dimensions shall be cut from the center portion of the test spe
6、cimen A and/or B. The specimens shall be prepared according to ISO 294. No annealing allowed. 3.5.2 Density 1.04 - 1.08 g/cm3 (ISO 1183, Method A/ASTM D 792, Method A1) 3.5.3 Tensile Strength at Max Load, min 48 MPa (ISO R 527/ASTM D 638M, 150 min x 10 x 4.0 +/- 0.2 mm specimen, 50 mm/min test speed
7、) ENGINEERING MATERIAL SPECIFICATION WSK-M4D836-A Copyright 2012, Ford Global Technologies, LLC Page 2 of 5 3.5.3.1 Elongation at Yield, min 2.5% (Test Method according to para 3.5.3) 3.5.4 Flexural Modulus, min 2.5 GPa (ISO 178/ASTM D 790M, Method I, Procedure A, 80 x 10 x 4.0 +/- 0.2 mm specimen,
8、2 mm/min test speed, 64 mm support span, the radius of the loading nose 5.0 +/- 0.1 mm and of the supports 2.0 +/- 0.2 mm) 3.5.5 Shear Modulus at 23 C 870 - 1200 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.
9、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 plotted for -50 to +120 C temperature range, at 5 C minimum intervals. The plotted curve must be
10、within tolerance range shown on page 5. 3.5.6 Impact Strength, Izod, min (ISO 180, Method A/ASTM D 256, Method A, 80 x 10 x 4.0 +/- 0.2 mm specimen, 10 specimens for each test) 3.5.6.1 At 23 +/- 2 C 11 kJ/m2 3.5.6.2 At -40 +/- 2 C 4 kJ/m2 3.5.6.3 At -10 +/- 2 C 6 kJ/m2 The test specimens must be con
11、ditioned for minimum of 6 h at the above specified temperature prior to impact test. Low temperature testing shall be done within the cold box, if not possible, test can be conducted outside, but within 5 s. 3.5.7 Heat Deflection Temperature, min 78 C (ISO 75/ASTM D 648, 120 x 10 x 4.0 +/- 0.2 mm sp
12、ecimen, at standard deflection of 0.32 +/- 0.01 mm. At 1.82 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. 3.5.8 Vicat Softening Temperature, min 97 C (ISO 306, 10 x 10 x 4.0 +/- 0.2 mm
13、 specimens. Bath - silicone oil, temp. raise 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 MATE
14、RIAL SPECIFICATION WSK-M4D836-A Copyright 2012, 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 Str
15、ength at Max Load Change +/- 15% (Test Method per para 3.5.3) 3.5.9.2 Impact Strength, Izod Change, -20% max (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 10
16、0 x 1.9 +/- 0.1 mm with a smooth surface. 3.7 FOGGING (FLTM BO 116-03) Fog Number, min 95 Formation of excessive amounts of clear film or droplets is cause for rejection. 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of th
17、is specification. 5.1 COEFFICIENT OF LINEAR THERMAL EXPANSION 7.5 - 8.5-5/C (ASTM D 696) 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 0.5 - 0.8% 5.2.2 Post Shrinkage (Separate specimens required for eac
18、h test) . After 48 h at 80 C 0.1 - 0.2% 5.3 MELT VOLUME RATE 21 - 30 cm3/ (ISO 1133/ASTM D 1238, 220 C, 10 kg) 10 minutes The material shall be dried for min of 2 h at 80 - 85 C in a mechanical convection oven immediately preceding the test. ENGINEERING MATERIAL SPECIFICATION WSK-M4D836-A Copyright
19、2012, Ford Global Technologies, LLC Page 4 of 5 5.4 HEAT DEFLECTION TEMPERATURE, min 90 C (ISO 75/ASTM D 648, 120 x 10 x 4.0 +/- 0.2 mm specimen, at standard deflection of 0.32 +/- 0.01 mm. 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 or ABS ABS OPTIONAL ENGINEERING MATERIAL SPECIFICATION WSK-M4D836-A Copyright 2012, Ford Global Technologies, LLC Page 5 of 5
