1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions 2011 03 01 N-Status No replacement named A Pan, APA 2005 09 14 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.7, 3.8 & 4 1988 10 31 Released CF4SRD107002201 J.B. Huebner Printed copies are uncontrolled Copyright 2011, Ford Global Technologies
2、, LLC Page 1 of 4 POLYETHYLENE TEREPHTHALATE (PET) 40% GLASS WSF-M4D620-A FIBER/MINERAL REINFORCED MOLDING COMPOUND NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a 40% glass fiber/mineral reinforced thermoplastic polyester molding compound based on polyethylene
3、 terephthalate (PET). 2. APPLICATION This specification was released originally for material used for motor end plate. 3. REQUIREMENTS 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materials
4、(WSS-M99P1111-A). 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 Glass Fiber Content 39 - 43% (ISO 3451/2, at 750 +/- 50 C) 3.5 MOLDED TEST SPECIMEN 3.5.1 Preparation of Test Specimens Unless
5、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 center portion of
6、the test specimen A and/or B. The specimens shall be prepared according to ISO 294. No annealing allowed. 3.5.2 Density 1.61 - 1.67 g/cm3 (ISO 1183, Method A) (s) 3.5.3 Tensile Strength at Max, min 98 MPa (ISO R 527, 150 minimum x 10 x 4.0 +/- 0.2 mm specimen, 5 mm/min test speed) ENGINEERING MATERI
7、AL SPECIFICATION WSF-M4D620-A Printed copies are uncontrolled Copyright 2011, Ford Global Technologies, LLC Page 2 of 4 (s) 3.5.4 Flexural Modulus, min 8.0 GPa (ISO 178, 80 x 10 x 4.0 +/- 0.2 mm specimen, 2 mm/min test speed, 64 mm support span) 3.5.5 Shear Modulus at 23 C 2.0 - 2.5 GPa (ASTM D 4065
8、, 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 Shear Modulus versus
9、Temperature curve shall be plotted for -50 to +240 C temperature range, at 5 C minimum intervals. The plotted curve must be within tolerance range shown on page 4. (s) 3.5.6 Impact Strength, Izod, min (ISO 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 5
10、.7 kJ/m2 3.5.6.2 At -40 +/- 1 C 3.5 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. (s) 3.5.7 Heat Deflection Temperature, min 190 C (ISO 75, 120 x 10 x 4.0 +/- 0.2 mm
11、specimen, 0.32 +/- 0.01 mm deflection. At 1.80 MPa) 3.5.8 Heat Aging Performance (ISO 188, except 150 +/- 50 air changes/h, 1000 h at 160 +/- 2 C. Unaged property values shall be determined at the time of the aged properties determination) 3.5.8.1 Tensile Strength Change +/- 20% (Test Method per par
12、a 3.5.3) 3.5.8.2 Impact Strength, Izod Change +/- 20% (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 1.4 +/- 0.1 mm with a smooth surface. ENGINEERING M
13、ATERIAL SPECIFICATION WSF-M4D620-A Printed copies are uncontrolled Copyright 2011, Ford Global Technologies, LLC Page 3 of 4 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 TH
14、ERMAL EXPANSION 3.8-5/ C (ASTM E 228 or TMA, temperature range -30 to +30 C 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 Flow Direction 0.24% Transverse to Flow 0.70% 5.2.2 Post Shrinkage (Separate spec
15、imens required for each test) . After 48 h at 80 C 0.1% . After 30 min at 120 C 0.1% 5.3 MELT TEMPERATURE 248 C (ISO 3146, Method C, 10 C/min heating rate) 5.4 HEAT DEFLECTION TEMPERATURE 241 C (ISO 75, 120 x 10 x 4.0 +/- 0.2 mm specimen, 0.32 +/- 0.01 mm deflection. At 0.45 MPa) 5.5 MELT VOLUME RATE 1.0 - 3.7 g/ (ISO 1133, 280 C, 5 kg) 10 minutes 5.6 RECYCLING CODE PET-(GF+M)40 ENGINEERING MATERIAL SPECIFICATION WSF-M4D620-A Printed copies are uncontrolled Copyright 2011, Ford Global Technologies, LLC Page 4 of 4
