1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2009 08 11 N-STATUS Replaced by WSK-M4D827-A3 A. Pan, AP 2006 04 11 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.8, 3.9 & 4 2000 08 04 Activated M. MehandruPrinted copies are uncontrolled Copyright 2009, Ford Global Technologies, LLC Page 1
2、of 4 ABS MOLDING COMPOUND, HIGH HEAT RESISTANT WSS-M4D827-A4 MEDIUM IMPACT SUPER HIGH FLOW MOLDING COMPOUND NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a high impact strength, high heat resistant molding compound based on acrylonitrile butadiene styrene (ABS)
3、. 2. APPLICATION This specification was released originally for material used for painted body 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).
4、 3.1.1 All requirements of this specification, identified by symbol(s), shall be met with data representing 3 sigma values. 3.4 MOLDING COMPOUND (s) 3.4.1 Melt Flow Rate 52 - 78 g/10 minutes (ISO 1133, 220 C, 10 kg) The material shall be dried for min of 2 h at 80 - 85 C in a mechanical convection o
5、ven immediately preceding the test. 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 minimum x 10 x 4.0 +/- 0.2 mm (ISO 3167, Type 1A)
6、 B. 60 x 60 x 2.0 +/- 0.1 mm (ISO/DIS 294-3) C. 355 x 100 x 1.9 +/- 0.1 mm (ISO 3795) Test specimen A shall be molded using molding conditions defined in ISO 3167. Specimens with shorter dimensions shall be cut from the center of the specimen A. No annealing allowed. 3.5.2 Density 1.03 - 1.09 g/cm3(
7、ISO 1183, Method A) ENGINEERING MATERIAL SPECIFICATIONWSS-M4D827-A4 Printed copies are uncontrolled Copyright 2009, Ford Global Technologies, LLC Page 2 of 4 (s) 3.5.3 Tensile Strength at Max Load, min 34 MPa (ISO R 527-1 & ISO 527-2, 150 minimum x 10 x 4.0 +/- 0.2 mm specimen, test speed: 50 mm/min
8、ute) 3.5.3.1 Elongation at Break, min 20% (Test Method according to para 3.5.3)(s) 3.5.4 Flexural Modulus, min 1.9 GPa (ISO 178, 80 x 10 x 4.0 +/- 0.2 mm specimen (use center section of specimen A), 2 mm/min test speed, 64 mm support span) 3.5.5 Shear Modulus at 23 C 0.7 - 1.10 GPa (ASTM D 5279, for
9、ced 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 versus temp
10、erature curve shall be plotted for -50 to +120 C temperature range, at 5 C minimum intervals. The plotted curve must be within tolerance range granted on the original material approval and it shall constitute the reference standard for material supplied to this specification and shall be kept on fil
11、e at the designated material laboratory and be available on request. (s) 3.5.6 Impact Strength, Izod, min (ISO 180/1A, 80.0 x 10 x 4.0 +/- 0.2 mm specimen (use center section of specimen A), 10 specimens for each test) 3.5.6.1 At 23 +/- 2 C 14 kJ/m23.5.6.2 At 0 +/- 1 C 7 kJ/m23.5.6.3 At -40 +/- 1 C
12、4 kJ/m2The 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 chamber, if not possible, test may be conducted outside, but within 5 seconds. (s) 3.5.7 Heat Deflection Temperature, min 79
13、 C (ISO 75-1 & ISO 75-2, 120 x 10 x 4.0 +/- 0.2 mm specimen (use center section of specimen A), edgewise, 0.32 +/-0.01 mm deflection. At 1.80 MPa) ENGINEERING MATERIAL SPECIFICATIONWSS-M4D827-A4 Printed copies are uncontrolled Copyright 2009, Ford Global Technologies, LLC Page 3 of 4 All specimens d
14、ry as molded. If not tested immediately after molding, specimens must be stored in a sealed, moisture-proof container filled with silica gel. (s) 3.5.8 Vicat Softening Temperature, min 89 C (ISO 306, 10 x 10 x 4.0 +/- 0.2 mm specimens (use center section of specimen A). Bath - silicone oil, temperat
15、ure 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 a sealed, moisture-proof container filled with silica gel. 3.5.9 Heat Aging Performance (ISO 188, except 150 +/-
16、 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 Strength at Max Load Change +/- 15% (Test Method per para 3.5.3) 3.5.9.2 Impact Strength, Izod Change, max +/- 35% (Test Method per para 3.5.6.1, spec
17、imens to be notched before heat aging) 3.6 FOGGING (SAE J 1756, 3 h at 100 C heating, 21 C cooling plate, post test conditioning 1 h and 16 h) Fog Number, min 90 Formation of a clear film, droplets or crystals is cause for rejection. 3.7 FLAMMABILITY (ISO 3795/SAE J369) Burn Rate, max 100 mm/minute
18、The specimen size required for material approval is 355 x 100 x 1.9 +/- 0.1 mm (use specimen C) with a smooth surface. ENGINEERING MATERIAL SPECIFICATIONWSS-M4D827-A4 Printed copies are uncontrolled Copyright 2009, Ford Global Technologies, LLC Page 4 of 4 5. GENERAL INFORMATION The information give
19、n below is provided for clarification and assistance in meeting the requirements of this specification. 5.1 COEFFICIENT OF LINEAR THERMAL EXPANSION 7 - 10-5/C (ASTM E 831 TMA, temperature range -30 to +30 C) 5.2 MOLD SHRINKAGE (ISO/DIS 294-3, 60 x 60 x 2.0 +/- 0.1 mm injection molded specimen) 5.2.1
20、 Molding Shrinkage . After 48 h at 23 +/- 2 C 0.4 - 0.8% 5.2.2 Post Shrinkage (Separate specimens required for each test) . After 48 h at 80 C 0.0 - 0.2% 5.3 MELT VOLUME RATE 7 - 21 g/10 minutes (ISO 1133, 220 C, 10 kg) Note: The material shall be dried for 2 h minimum at 80 - 85 C in a mechanical c
21、onvection oven immediately preceding the test. 5.4 MODULUS OF ELASTICITY 2.6, MPa (ISO 527-1 & 527-2, 150 minimum x 10 x 4 +/- 0.2 mm specimen, test speed: 1 mm/minute) 5.5 HEAT DEFLECTION TEMPERATURE 89 C (ISO 75-1 & ISO 75-2, 120 x 10 x 4.0 +/- 0.2 mm specimen (use center section of specimen A), edgewise, 0.32 +/- 0.01 mm deflection. 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. 5.6 MATERIAL IDENTIFICATION FOR RECYCLING PURPOSES ABS
