1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2011 03 01 No replacement named A. Pan, APA N Status 2006 06 26 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.8, 3.9 & 4 1994 11 04 Released NB00I10043054379 M. Trapp Printed copies are uncontrolled Copyright 2011, Ford Global Technologies, L
2、LC Page 1 of 5 POLYPHENYLENE ETHER + POLYAMIDE BLEND (PPE+PA), WSB-M4D891-A2 HIGH FLOW MOLDING COMPOUND NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is an unfilled thermoplastic molding compound based on polyphenylene ether and polyamide. 2. APPLICATION This spec
3、ification was released originally for material used for electrical junction box. 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 environment.
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). 3.1.1 All requirements of this specification, identified by symbol(s), shall be met with data represe
5、nting 3 sigma values. 3.4 MOLDING COMPOUND (s) 3.4.1 Melt Flow Rate 30 - 50 g/ (ISO 1133, 280 C, 5 kg) 10 minutes The material shall be dried for 3 h minimum at 120 C in a mechanical convection oven immediately preceding the test. 3.5 MOLDED TEST SPECIMEN 3.5.1 Preparation of Test Specimens Unless o
6、therwise 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 center portion of t
7、he test specimen A and/or B. The specimens shall be prepared according to ISO 294. No annealing allowed. ENGINEERING MATERIAL SPECIFICATIONWSB-M4D891-A2Copyright 2011, Ford Global Technologies, LLC Page 2 of 5 Printed copies are uncontrolled clamps 35-40 mm. Soak time at each 3.5.2 Density, min 1.08
8、 g/cm (ISO 1183, 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 2.2 GPa (ISO 178, 80 x 10 x 4.0 +/-
9、0.2 mm specimen, 2 mm/min test speed, 64 mm support span) 3.5.5 Shear Modulus at 23 C 850 - 1290 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 t
10、emperature 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 (ISO 180/1A, 80 x 10
11、x 4.0 +/- 0.2 mm specimen, 10 specimens for each test) 3.5.6.1 At 23 +/- 2 C 12.0 kJ/m 3.5.6.2 At -40 +/- 1 C 4.5 kJ/m 3.5.6.3 At -20 +/- 1 C 7.0 kJ/mThe test specimens must be conditioned for minimum of 6 h at the above specified temperature prior to impact test. Low temperature testing shall be do
12、ne within the 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 96 C 3.5.7.2 At 0.45 MPa 176 C All specimens dry as molded. If not tested immediately after molding, specimens must be stored in
13、a sealed, moisture-proof container filled with silica gel. ENGINEERING MATERIAL SPECIFICATIONWSB-M4D891-A2Copyright 2011, Ford Global Technologies, LLC Page 3 of 5 Printed copies are uncontrolled (s) 3.5.8 Vicat Softening Temperature, min 190 C (ISO 306, 10 x 10 x 4.0 +/- 0.2 mm specimens. Bath - si
14、licone oil, 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
15、 188, except 150 +/- 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) 3.5.9.1 Tensile Strength at Yield Change +/- 25%
16、3.5.9.2 Impact Strength, Izod Change +/- 25% (Test Method per para 3.5.6.1, specimens 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) Fog Number, min 90 Formation of clear film, droplets or crystals is cause for rejection
17、. 3.7 FLAMMABILITY (ISO 3795/SAE J369) Burn Rate, max 100 mm/minute The specimen 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 thi
18、s specification. 5.1 COEFFICIENT OF LINEAR THERMAL EXPANSION 7.0 - 10.1-5/ C (ASTM E 831 (TMA), temperature range -30 to +50 C) ENGINEERING MATERIAL SPECIFICATIONWSB-M4D891-A2Copyright 2011, Ford Global Technologies, LLC Page 4 of 5 Printed copies are uncontrolled 5.2 MOLD SHRINKAGE (ISO 2577, appro
19、x. 150 x 100 x 3.2 +/- 0.2 mm injection molded specimen) 5.2.1 Molding Shrinkage . After 48 h at 23 +/- 2 C 1.0 - 1.8% 5.2.2 Post Shrinkage (Separate specimens required for each test) . After 48 h at 80 C 1.1 - 1.9% . After 30 minutes at 120 C 1.3 - 1.9% 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-A2Copyright 2011, Ford Global Technologies, LLC Page 5 of 5 Printed copies are uncontrolled
