1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions Ver. 4 2008 07 29 N-STATUS Replaced by WSK-M4D827-A C. Boese, FNA 2005 09 16 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.8, 3.9 & 4 1989 01 18 Released SM/EQ0972 P. Kuntze Printed copies are uncontrolled Copyright 2008, Ford Global Technol
2、ogies, LLC Page 1 of 5 ABS MOLDING COMPOUND, HIGH IMPACT INTERIOR WSK-M4D630-A NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is an acrylonitrile-butadiene-styrene (ABS) molding compound for interior use with high impact properties. 2. APPLICATION This specificatio
3、n was released originally for material used for seat cushion frame. 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 Companys Standar
4、d Requirements For Production Materials (WSS-M99P1111-A). 3.4 MOLDING COMPOUND 3.4.1 Melt Flow Rate 1.8 - 3.8 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 SPE
5、CIMEN 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 with shorter di
6、mensions 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 1.02 - 1.08 g/cm3 (ISO 1183, Method A/ASTM D 792, Method A1) 3.5.3 Tensile Strength at Max Load, min 34 MPa (ISO R 527/ASTM D 638M,
7、 150 min x 10 x 4.0 +/- 0.2 mm specimen, 50 mm/minute) ENGINEERING MATERIAL SPECIFICATION WSK-M4D630-A Printed copies are uncontrolled Copyright 2008, Ford Global Technologies, LLC Page 2 of 5 3.5.4 Flexural Modulus, min 1.65 GPa (ISO 178/ASTM D 790M, Method I, Procedure A, 80 x 10 x 4.0 +/- 0.2 mm
8、specimen, 64 mm support span) 3.5.5 Shear Modulus at 23 C 550 - 820 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. Additionally, a Shear Modulus vs. Temperature curve sh
9、all be plotted for -50 to +110 C temperature range, at 5 C minimum intervals. The plotted curve must be within tolerance range shown on page 5. 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 +/-
10、2 C 30 kJ/m2 3.5.6.2 At -10 +/- 2 C 16 kJ/m2 3.5.6.3 At -40 +/- 2 C 10 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
11、ut 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 70 C 3.5.7.2 At 0.45 Mpa 85 C All specimens dry as molded. If not tested immediately after molding, specimens must be stored in a sealed, moisture-proof container filled
12、with silica gel. 3.5.8 Vicat Softening Temperature, min 89 C (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. At 49.0 N load) All specimens dry as molded. If not tested immediately after molding, specimens m
13、ust be stored in a sealed, moisture-proof container filled with silica gel. ENGINEERING MATERIAL SPECIFICATION WSK-M4D630-A Printed copies are uncontrolled Copyright 2008, Ford Global Technologies, LLC Page 3 of 5 3.5.9 Heat Ageing Performance (ISO 188/ASTM D 573, 1000 h at 80 +/- 2 C. Unaged proper
14、ty values shall be determined at the time of the aged properties determination) 3.5.9.1 Tensile Strength at max load Change +/- 15% (Test Method per para 3.5.3) 3.5.9.2 Impact Strength, Izod Change +/- 38% (Test Method per para 3.5.6.1, specimens to be notched before heat ageing) 3.6 FLAMMABILITY (I
15、SO 3795) Burn Rate, max 100 mm/minute The specimen size required for material approval is 355 x 100 x 1.9 +/- 0.1 mm with a smooth surface. 3.7 SPECIAL REQUIIREMENTS 3.7.1 Weathering Resistance After exposure in accordance with 3.7.1.1 and 3.7.1.2 the material shall show no fading or color change in
16、 excess of specified AATCC rating (AATCC Gray Scale for Evaluating Change in Color, 10 step). In addition, there shall be no cracking, crazing or other deterioration. A slight loss of gloss or chalking will be allowed provided an acceptable appearance can be achieved by washing with mild detergents
17、and water (ratio 5:95 by volume). 3.7.1.1 Xenon Arc Weatherometer Rating 4 (SAE J 1885, except Black Panel Temperature at 80 C, 300 kJ/m2 exposure minimum, specimen size: 150 x 100 mm minimum, 3.2 +/- 0.2 mm thick, molded in smooth polished mold) 3.7.1.2 12 months Florida Rating 4 (FLTM BI 160-1, 5
18、south, under glass, specimen size: 150 x 100 mm minimum, 3.2 +/- 0.2 mm thick, molded in smooth polished mold) ENGINEERING MATERIAL SPECIFICATION WSK-M4D630-A Printed copies are uncontrolled Copyright 2008, Ford Global Technologies, LLC Page 4 of 5 5. GENERAL INFORMATION The information given below
19、is provided for clarification and assistance in meeting the requirements of this specification. 5.1 COEFFICIENT OF LINEAR THERMAL EXPANSION 8 - 11-5/ 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 +/
20、- 2 C 0.4 - 0.7% 5.2.2 Post Shrinkage (Separate specimens required for each test) After 48 h at 80 C 0.1% 5.3 MELT VOLUME RATE 2.0 - 4.0 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-M4D630-A Printed copies are uncontrolled Copyright 2008, Ford Global Technologies, LLC Page 5 of 5
