1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions Rev 04 2013 05 17 N Status Replaced by WSS-M4D684-B1 Matt Corley, EU 2011 04 25 Re-Activated V. Cerato, FoE 1989 11 17 Released SM/EQ9859 P. Kuntze Controlled document at www.MATS Copyright 2013, Ford Global Technologies, LLC Page 1 of 5 ABS/
2、PC BLEND, MEDIUM IMPACT STRENGTH WSK-M4D684-A1 MOLDING COMPOUND NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a medium impact strength easy flow molding compound based on acrylonitrile-butadiene-styrene/polycarbonate (ABS/PC) blend. 2. APPLICATION This specific
3、ation was released originally for material used for painted and non-visible parts. 3. REQUIREMENTS Material specification requirements are to be used for initial qualification of materials. 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the C
4、ompanys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.4 MOLDING COMPOUND 3.4.1 Melt Flow Rate 14 - 20 g/10 minutes (ISO 1133/ASTM D 1238, 260 C, 5 kg) The material shall be dried for min of 2 h at 105 - 110 C in a mechanical convection oven immediately preceding the test. 3.5 MO
5、LDED 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 Specimens wi
6、th 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 WSK-M4D684-A1 Copyright 2013, Ford Global Technologies, LLC Page 2 of 5 3.5.2 Density 1.11 - 1.16
7、 g/cm3 (ISO R 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 x 10 x 4.0 +/- 0.2 mm specimen, 50 mm/minute) 3.5.3.1 Elongation at Break, min 80% (Test Method according to para 3.5.3) 3.5.4 Flexural Modulus, min 1.7 GPa (ISO 178/ASTM D
8、790M - Method I, Procedure A, 80 x 10 x 4.0 +/- 0.2 mm specimen, 64 mm support span) 3.5.5 Shear Modulus at 23 C 600 - 900 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 from the center of specimen A.
9、 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 +140 C temperature range, at 5 C minimum intervals. The plotted curve must be within tolerance range shown on page 5.
10、 3.5.6 Impact Strength, Izod, min (ISO 180, Method A/ASTM D 256, Method A, 63.5 x 10 x 4.0 +/-0.2 mm specimen, 10 specimens for each test) 3.5.6.1 At 23 +/- 2 C 40 kJ/m2 3.5.6.2 At -20 +/- 2 C 35 kJ/m2 3.5.6.3 At -40 +/- 2 C 25 kJ/m2 The test specimens must be conditioned for minimum of 6 h at the a
11、bove 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 (ISO 75/ASTM D 648, 120 x 10 x 4.0 +/- 0.2 mm specimen) 3.5.7.1 At 1.82 MPa 100 C ENGINEE
12、RING MATERIAL SPECIFICATION WSK-M4D684-A1 Copyright 2013, Ford Global Technologies, LLC Page 3 of 5 3.5.8 Vicat Softening Temperature, min (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 weight.) All specimens dry as
13、 molded. If not tested immediately after molding, specimens must be stored in a sealed, moisture-proof container filled with silica gel. 3.5.8.1 At 49.0 N 117 C 3.5.9 Heat Ageing Performance (ISO 188/ASTM D 573, 1000 h at 90 +/- 2 C) 3.5.9.1 Tensile Strength Change, max +15% (Test Method per para 3.
14、5.3) 3.5.9.2 Impact Strength, Izod Change, max -25% (Test Method per para 3.5.6.1, specimens to be notched before heat ageing) 3.6 FLAMMABILITY (ISO 3795) Burn Rate, max 100 mm/minute The specimen size required for material approval is 355 x 100 x 1.6 +/- 0.1 mm with a smooth surface. 3.7 FOGGING (S
15、AE J1756, 3 h at 100 C heating, 21 C cooling plate, post test conditioning 1 h and 16 h) Fog Number, min 60 Formation of clear film, droplets or crystals is cause for rejection. 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirement
16、s of this specification. 5.1 COEFFICIENT OF LINEAR THERMAL EXPANSION 7.5 - 8-5/ 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% ENGINEERING MATERIAL SPECIFICATION WSK-M4D684-A1 Copy
17、right 2013, Ford Global Technologies, LLC Page 4 of 5 5.2.2 Post Shrinkage (Separate specimens required for each test) After 48 h at 80 C 0.02 - 0.03% After 30 minutes at 120 C 0.15 - 0.20% 5.3 MELT VOLUME RATE 15 - 21 cm3/ (ISO 1133/ASTM D 1238, 260 C, 5 kg) 10 minutes The material shall be dried f
18、or min of 2 h at 105 - 110 C in a mechanical convection oven immediately preceding the test. 5.4 HEAT DEFLECTION TEMPERATURE, min (ISO 75/ASTM D 648, 120 x 10 x 4.0 +/- 0.2 mm specimen) 5.4.1 At 0.45 MPa 120 C All specimens dry as molded. f not tested immediately after molding specimens must be stored in a sealed moisture-proof container filled with silica gel. ENGINEERING MATERIAL SPECIFICATION WSK-M4D684-A1 Copyright 2013, Ford Global Technologies, LLC Page 5 of 5
