1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions 2011 03 01 N-Status No replacement named A Pan, APA 2005 09 15 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.8, 3.9 & 4 1990 11 02 Released EP00E01031541000 K. Gerhards Printed copies are uncontrolled Copyright 2011, Ford Global Technologies
2、 LLC Page 1 of 5 POLYPHENYLENE ETHER + POLYAMIDE BLEND (PPE+PA) WSK-M4D623-A2 IMPACT MODIFIED MOLDING COMPOUND NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a molding compound based on polyphenylene ether and polyamide (PPE+PA) blend, impact modified, UV-stabi
3、lized to a degree allowing use of a one layer overspray paint system. 2. APPLICATION This specification was released originally for material used for hub caps painted with a thin one layer overspray. Note: The material must not be used for parts exposed to long term usage in temperatures above 70 C.
4、 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). 3.4 MOLDING COMPOUND 3.4.1 Melt Flow Rate 5 - 11 g/ (ISO 1133/ASTM D 1238, 280 +/- 0.5 C, 10 minutes
5、 5.0 kg) The material shall be dried for 4 h minimum at 110 - 115 C in a mechanical convection oven 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.
6、 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 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 all
7、owed. ENGINEERING MATERIAL SPECIFICATION WSK-M4D623-A2 Printed copies are uncontrolled Copyright 2011, Ford Global Technologies, LLC Page 2 of 5 3.5.2 Density 1.14 - 1.25 g/cm3 (ISO 1183, Method A/ASTM D 792, Method A1) 3.5.3 Tensile Strength at Yield, min 52 MPa (ISO R 527/ASTM D 638M, 150 min x 10
8、 x 4.0 +/- 0.2 mm specimen, 50 mm/minute test speed) 3.5.3.1 Elongation at Break, min 25% (Test Method according to para 3.5.3) 3.5.4 Flexural Modulus, min 1.8 GPa (ISO 178/ASTM D 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 646 - 97
9、0 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. Specimen length between clamps 35-40 mm. Soak time at each temperature interval - 3 minutes minimum) Additionally, a She
10、ar Modulus vs. Temperature curve shall be plotted for -50 to +250 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, 80 x 10 x 4.0 +/- 0.2 mm specimen, 10 specimens
11、 for each test) 3.5.6.1 At 23 +/- 2 C 18 kJ/m2 3.5.6.2 At -40 +/- 2 C 8 kJ/m2 3.5.6.3 At 0 +/- 2 C 16 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, t
12、est can be conducted outside, but within 5 s. 3.5.7 Vicat Softening Temperature, min 185 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 5 kg weight. At 49.0 N) All specimens dry as molded. If not tested immediatel
13、y after molding, specimens must be stored in a sealed, moisture-proof container filled with silica gel. ENGINEERING MATERIAL SPECIFICATION WSK-M4D623-A2 Printed copies are uncontrolled Copyright 2011, Ford Global Technologies, LLC Page 3 of 5 3.5.8 Heat Aging Performance (ISO 188/ASTM D 573, 150 +/-
14、 50 air changes/h, 1000 h at 90 +/- 2 C. After heat aging test specimens are to be conditioned in a desiccator for 3 - 5 h at 23 +/- 2 C. Unaged property values shall be determined at the time of the aged properties determination) 3.5.8.1 Tensile Strength at Yield Change +/- 25% (Test Method per par
15、a 3.5.3) 3.5.8.2 Impact Strength, Izod Change +/- 25% (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 x 100 x 1.0 +/- 0.1 mm with a smooth surface. 3.7 FOGGING (
16、FLTM BO 116-03) Fog Number, min 70 Formation of excessive amounts of clear film or droplets is cause for rejection. 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specification. 5.1 COEFFICIENT OF LINEAR THERMAL EXP
17、ANSION 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 +/- 2 C 0.5 - 1.5% 5.2.2 Post Shrinkage (Separate specimens required for each test) . After 48 h at 80 C 0.06 - 0.10% . After 30 minute
18、s at 120 C 0.10 - 0.14% ENGINEERING MATERIAL SPECIFICATION WSK-M4D623-A2 Printed copies are uncontrolled Copyright 2011, Ford Global Technologies, LLC Page 4 of 5 5.3 MELT VOLUME RATE 4.5 - 11 cm3/ (ISO 1133/ASTM D 1238, except 280 +/- 0.5 C, 10 minutes 5.0 kg load, extrudate volume in cm3/10 minute
19、s) The material shall be dried for 4 h minimum at 110 - 115 C in a mechanical convection oven immediately preceding the test. 5.4 HEAT DEFLECTION TEMPERATURE 178 C (ISO 75/ASTM D 648, 120 x 10 x 4.0 +/- 0.2 mm specimen, at 0.45 MPa) 5.5 RESISTANCE TO WEATHERING After exposure the part shall show no
20、fading or color change in 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. 5.5.1 Xenon Arc Weatherometer Rating 4 (SAE J1960, 100 kJ/m2 exposure minimum) ENGINEERING MATERIAL SPECIFICATION WSK-M4D623-A2 Printed copies are uncontrolled Copyright 2011, Ford Global Technologies, LLC Page 5 of 5
