1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions 2008 02 26 N-STATUS Replaced by WSS-M4D585-B or WSB-M4D813-A G. Kowalski 2005 11 17 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.8, 3.9, 4; Corrected numbering 3.5.6, 3.5.9 1990 01 16 Released NC00E10025684007 R. W. Ocobock Printed copies a
2、re uncontrolled Copyright 2008 Ford Global Technologies, LLC Page 1 of 5 ABS + POLYCARBONATE BLEND (ABS+PC), IMPACT WSA-M4D688-A1 MODIFIED MOLDING COMPOUND ABS + POLYCARBONATE BLEND (ABS+PC), IMPACT WSA-M4D688-A2 MODIFIED MOLDING COMPOUND ABS + POLYCARBONATE BLEND (ABS+PC), IMPACT WSA-M4D688-A3 MODI
3、FIED MOLDING COMPOUND NOT TO BE USED FOR NEW DESIGN 1. SCOPE The materials defined by these specifications are impact modified molding compounds based on acrylonitrile-butadiene-styrene and polycarbonate (ABS+PC) blend. 2. APPLICATION These specifications were released originally for materials used
4、for wheel covers and ornaments. 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). 3.1.1 All requirements of this specification, identified by symbol (s
5、), shall be met with data representing 3 sigma values. A1 A2 A3 3.4 MOLDING COMPOUND (s) 3.4.1 Melt Flow Rate, g/10 minutes 9 15 7 12 4 - 9 (ISO 1133, 260 C, 5 kg) 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. ENGINEERING MATERIAL SPECIFICATION WSA-M4D688-A1/A2/A3 Printed copies are uncontrolled Copyright 2008 Ford Global Technologies, LLC Page 2 of 5 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 m
7、m 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 1.13 - 1.17 g/cm3 (ISO 1183, Method A) (s) 3.5.3 Tensile Strength at Max Load, min 48 MPa (ISO R 527, 15
8、0 x 10 x 4.0 +/- 0.2 mm specimen, 50 mm/minute test speed) (s) 3.5.3.1 Elongation at Break, min 88% (Test Method according to para 3.5.3) (s) 3.5.4 Flexural Modulus, min 2.0 GPa (ISO 178, 80 x 10 x 4.0 +/- 0.2 mm specimen, 64 mm support span) 3.5.5 Shear Modulus at 23 C 800 - 1000 MPa (ASTM D 4065,
9、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) Additionally, a Shear Modulus vs. Temp
10、erature curve 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 5. (s) 3.5.6 Impact Strength, Izod, kJ/m2, min (ISO 180/1A, 80 x 10 x 4.0 +/- 0.2 mm specimen, 10 specimens for each test) A1 A2 A3 3.5.6.1 At
11、23 +/- 2 C 42 44 44 3.5.6.2 At -30 +/- 2 C 32 21 21 3.5.6.3 At -40 +/- 2 C 26 10 10 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 WSA-M4D
12、688-A1/A2/A3 Printed copies are uncontrolled Copyright 2008 Ford Global Technologies, LLC Page 3 of 5 (s) 3.5.7 Heat Deflection Temperature, C, min (ISO 75, 120 x 10 x 4.0 +/- 0.2 mm specimen, 0.32 +/- 0.01 mm deflection) 3.5.7.1 At 0.45 MPa 122 118 129 3.5.7.2 At 1.82 MPa 103 95 100 (s) 3.5.8 Vicat
13、 Softening Temperature, C, min 125 117 129 (ISO 306, 10 x 10 x 4.0 +/- 0.2 mm specimens. Bath - silicone oil, temp. 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
14、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 85 +/- 2 C. Unaged property values shall be determined at the time of the aged properties determination) 3.5.9.1 Impact Strength, Izod Change +/- 15% (Test
15、 Method per para 3.5.6.1, specimens to be notched before heat aging) 3.5.9.2 Impact Strength, Izod Change +/- 15% (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
16、 x 100 x 2.5 +/- 0.1 mm with a smooth surface. 3.7 FOGGING (FLTM BO 116-03, 3 h at 100 C) Fog Number, min 60 Formation of clear film or droplets is cause for rejection. ENGINEERING MATERIAL SPECIFICATION WSA-M4D688-A1/A2/A3 Printed copies are uncontrolled Copyright 2008 Ford Global Technologies, LLC
17、 Page 4 of 5 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of these specifications. A1 A2 A3 5.1 COEFFICIENT OF LINEAR THERMAL EXPANSION, -5/C 7.2 6.3 7.2 (ASTM D 696) 5.2 MOLD SHRINKAGE, % (ISO 2577, approx. 150 x 100 x 3
18、2 +/- 0.2 mm injection molded specimen) 5.2.1 Molding Shrinkage . After 48 h at 23 +/- 2 C 0.55 - 0.65 0.55 - 0.65 0.55 - 0.65 5.2.2 Post Shrinkage, % (Separate specimens required for each test) . After 48 h at 80 C 0.05 - 0.1 0.18 - 0.5 0.05 - 0.1 . After 30 minutes at 120 C 0.1 - 0.2 0.18 - 0.5 0
19、1 - 0.2 5.3 INSTRUMENTED IMPACT STRENGTH, J, 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 35.0 40.0 50.0 5.3.2 At -30 +/- 1 C 35.0 35.0 50.0 5.4 MELT FLOW RATE, g/10 minutes 5.0 - 10.4 5.0 - 10.4 2.0 - 7.0 (ISO 1133, 250 C, 5 kg) 5.5 RECYCLING CODE ABS+PC ENGINEERING MATERIAL SPECIFICATION WSA-M4D688-A1/A2/A3 Printed copies are uncontrolled Copyright 2008 Ford Global Technologies, LLC Page 5 of 5
