1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions 2008 03 13 N-STATUS Replaced by WSS-M4D585-B or WSS-M4D924-A; Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.8, 3.9 Revised 3.7 & 5 G. Kowlaski 2000 02 28 Editorial no technical change APC 1992 03 19 Released DR00E00107002134 A. Vallabhanath Printed
2、copies are uncontrolled Copyright 2008, Ford Global Technologies, LLC Page 1 of 5 ABS + POLYCARBONATE BLEND (ABS+PC), 12% TiO2 WSF-M4D785-A3 FILLED MOLDING COMPOUND NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is an impact modified molding compound based on acryl
3、onitrile-butadiene-styrene and polycarbonate blend (ABS+PC) filled with titanium dioxide (TiO2). 2. APPLICATION This specification was released originally for material used for audio components. 3. REQUIREMENTS 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers
4、must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.4 MOLDING COMPOUND 3.4.1 Melt Flow Rate (ISO 1133/ASTM D 1238) . At 260 C, 5 kg 6 - 13 g/10 minutes . At 250 C, 5 kg 4 - 9 g/10 minutes 3.4.2 TiO2 Content 12 +/- 2% (ISO 3451/1 Method A, 1 h at 650 +/- 50
5、 C) 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 +/- 0.2 mm Sp
6、ecimens 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. ENGINEERING MATERIAL SPECIFICATION WSF-M4D785-A3 Printed copies are uncontrolled Copyright 2008, Ford Global Technologies,
7、 LLC Page 2 of 5 3.5.2 Density 1.14 - 1.20 g/cm3 (ISO 1183, Method A/ASTM D 792, Method A1) 3.5.3 Tensile Strength at Max Load, min 42 MPa (ISO 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 50% (Test Method according to para 3.5.3) 3.5.4 Flexur
8、al Modulus, min 1.8 GPa (ISO 178/ASTM D 790M, Method I, Procedure A, 80 x 10 x 4.0 +/- 0.2 mm specimen, 2 mm/minute 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 720 - 900 MPa (ASTM D 4065, forced constan
9、t 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) Additionally, a Shear Modulus vs. Temperature curve
10、shall be plotted for -50 to +180 C temperature range, at 5 C minimum intervals. The plotted curve must be within tolerance range shown on page 7. 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 +/-
11、2 C 32 kJ/m2 3.5.6.3 At -30 +/- 2 C 20 kJ/m2 3.5.6.2 At -40 +/- 2 C 15 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, if not possible, test can be conducted outside, b
12、ut within 5 s. ENGINEERING MATERIAL SPECIFICATION WSF-M4D785-A3 Printed copies are uncontrolled Copyright 2008, Ford Global Technologies, LLC Page 3 of 5 3.5.7 Heat Deflection Temperature, min (ISO 75/ASTM D 648, 120 x 10 x 4.0 +/- 0.2 mm specimen, at standard deflection of 0.32 +/- 0.01 mm) 3.5.7.1
13、 At 0.45 MPa 105 C 3.5.7.2 At 1.80 MPa 90 C 3.5.8 Vicat Softening Temperature, min 108 C (ISO 306, 10 x 10 x 4.0 +/- 0.2 mm specimens. Bath - silicone oil, temp. raise 50 +/- 5 C/h. Dial gauge reset to 0 after addition of 5 kg weight. At 49.0 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/ASTM D 573, 150 +/- 50 air changes/h, 1000 h at 80 +/- 2 C. After heat aging test specimens are to be conditioned in a desiccator for 3 - 5 h at 23 +/- 2
15、C. Unaged property values shall be determined at the time of the aged properties determination) 3.5.9.1 Tensile Strength Change +/- 15% (Test Method per para 3.5.3) 3.5.9.2 Impact Strength, Izod Change +/- 20% (Test Method per para 3.5.6.1, specimens to be notched before heat aging) 3.6 FLAMMABILITY
16、 (ISO 3795) Burn Rate, max 100 mm/minute The specimen size required for material approval is 355 x 100 x 2.5 +/- 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 90 Formation of clear film, droplets o
17、r crystals is cause for rejection. ENGINEERING MATERIAL SPECIFICATION WSF-M4D785-A3 Printed copies are uncontrolled Copyright 2008, Ford Global Technologies, LLC Page 4 of 5 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of
18、 this specification. 5.1 COEFFICIENT OF LINEAR THERMAL EXPANSION 6.2-5/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 - 0.7% 5.2.2 Post Shrinkage (Separate specimens required for each t
19、est) . After 48 h at 80 C 0.01 - 0.10% . After 30 minutes at 120 C 0.1 - 0.2% 5.3 INSTRUMENTED IMPACT STRENGTH, min (ASTM D 3763, 50 mm diameter, 3.2 +/- 0.2 mm thick specimen, 12.7 mm dart, 38 mm support opening) 5.3.1 At 23 +/- 2 C 29.0 J 5.3.2 At -30 +/- 1 C 26.0 J 5.4 MELT FLOW RATE 5.0 - 11.0 g/10 minutes (ISO 1133/ASTM D 1238, 250 C, 5 kg) 5.5 RECYCLING CODE SAE or ABS+PC-MD12 ABS+PC-MD12 ENGINEERING MATERIAL SPECIFICATION WSF-M4D785-A3 Printed copies are uncontrolled Copyright 2008, Ford Global Technologies, LLC Page 5 of 5
