1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2010 11 11 N-STATUS Replaced by SDS and USCAR requirements A. Pan, APA 2006 06 26 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.8, 3.9 & 4 1994 11 17 Released NB00I10043054394 M. Trapp Printed copies are uncontrolled Copyright 2010, Ford Glob
2、al Technologies, LLC Page 1 of 5 POLYPHENYLENE ETHER + POLYAMIDE BLEND (PPE+PA) WSB-M4D891-A1 MOLDING COMPOUND NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a thermoplastic molding compound based on polyphenylene ether and polyamide blend. 2. APPLICATION This s
3、pecification was released originally for material used for fuel tank sender connector. Notice: This material absorbs and retains moisture. Part design and tolerances must accommodate changes in part dimensions and physical properties due to moisture absorption or loss in the service/assembly environ
4、ment. 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), shall be met with data r
5、epresenting 3 sigma values. 3.4 MOLDING COMPOUND (s) 3.4.1 Melt Flow Rate 6.0 - 12.0 g/10 minutes (ISO 1133, 300 C, 6.7 kg) The material shall be dried for 30 minutes minimum at 95 C in a mechanical convection oven immediately preceding the test. 3.5 MOLDED TEST SPECIMEN 3.5.1 Preparation of Test Sp
6、ecimens 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 dimensions shall be cut from the cen
7、ter portion of the test specimen A and/or B. The specimens shall be prepared according to ISO 294. No annealing allowed. ENGINEERING MATERIAL SPECIFICATIONWSB-M4D891-A1 Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 2 of 5 3.5.2 Density 1.02 - 1.18 g/cm (ISO 1183,
8、 Method A) (s) 3.5.3 Tensile Strength at Yield, min 56 MPa (ISO R 527, 150 minimum x 10 x 4.0 +/-0.2 mm specimen, 50 mm/min test speed) (s) 3.5.3.1 Elongation at Break, min 15% (Test Method according to para 3.5.3)(s) 3.5.4 Flexural Modulus, min 2.1 GPa (ISO 178, 80 x 10 x 4.0 +/- 0.2 mm specimen, 2
9、 mm/min test speed, 64 mm support span) 3.5.5 Shear Modulus at 23 C 672 - 1008 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.
10、Soak time at each temperature interval - 3 minutes minimum) Additionally, a Shear Modulus versus Temperature curve shall be plotted for -50 to +200 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, min (I
11、SO 180/1A, 80 x 10 x 4.0 +/- 0.2 mm specimen, 10 specimens for each test) 3.5.6.1 At 23 +/- 2 C 9.0 kJ/m 3.5.6.2 At -40 +/- 1 C 5.5 kJ/m 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
12、 cold box. (s) 3.5.7 Heat Deflection Temperature, min (ISO 75, 120 x 10 x 4.0 +/- 0.2 mm specimen, edgewise, 0.32 +/- 0.01 mm deflection) 3.5.7.1 At 1.80 MPa 112 C 3.5.7.2 At 0.45 MPa 144 C All specimens dry as molded. If not tested immediately after molding, specimens must be stored in a sealed, mo
13、isture-proof container filled with silica gel. ENGINEERING MATERIAL SPECIFICATIONWSB-M4D891-A1 Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 3 of 5 (s) 3.5.8 Vicat Softening Temperature, min 162 C (ISO 306, 10 x 10 x 4.0 +/- 0.2 mm specimens. Bath - silicone oil,
14、 temperature 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, excep
15、t 150 +/- 50 air changes/h, 1000 h at 50 +/- 2 C. Unaged property values shall be determined at the time of the aged properties determination) 3.5.9.1 Tensile Strength at Yield Change +/- 25% (Test Method per para 3.5.3) 3.5.9.2 Impact Strength, Izod Change +/- 25% (Test Method per para 3.5.6.1, spe
16、cimens to be notched before heat aging) 3.6 FOGGING (SAE J1756, 3 h at 100 C heating, 21 C cooling plate, post test conditioning 1 h and 16 h) Fog Number, min 90 Formation of clear film, droplets or crystals is cause for rejection. 3.7 FLAMMABILITY (ISO 3795) Burn Rate, max 100 mm/minute The specime
17、n size required for material approval is 355 x 100 x 2.5 +/- 0.1 mm with a smooth surface. 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 EXPANSION 6.0 - 8.0-5/C (AST
18、M E 831 (TMA), temperature range -30 to +50 C) ENGINEERING MATERIAL SPECIFICATIONWSB-M4D891-A1 Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 4 of 5 5.2 MOLD SHRINKAGE (ISO 2577, approx. 150 x 100 x 3.2 +/- 0.2 mm injection molded specimen) 5.2.1 Molding Shrinkage
19、 . After 48 h at 23 +/- 2 C 1.2% 5.2.2 Post Shrinkage (Separate specimens required for each test) . After 48 h at 80 C 0.4% . After 30 minutes at 120 C 0.4% 5.3 WATER ABSORPTION 0.2% (ISO 62, 24 h immersion, 50 +/- 1 mm diameter, 3.2 +/- 0.2 mm thick specimen) 5.4 RECYCLING CODE PPE+PA ENGINEERING MATERIAL SPECIFICATIONWSB-M4D891-A1 Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 5 of 5
