1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2010 11 16 N-STATUS No replacement named A. Pan, APA 2006 01 25 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.8, 3.9 & 4 1990 05 22 Released NB00I10043054026 L. A. Graham Printed copies are uncontrolled Copyright 2010, Ford Global Technologie
2、s, LLC Page 1 of 4 POLYETHYLENE TEREPHTHALATE (PET), 35% GLASS WSB-M4D766-A FIBER REINFORCED MOLDING COMPOUND NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a glass fiber reinforced thermoplastic polyester molding compound based on polyethylene terephthalate (PE
3、T). 2. APPLICATION This specification was released originally for material used for window frames. 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、4 MOLDING COMPOUND 3.4.1 Melt Flow Rate 1.0 - 10.0 g/10 minutes (ISO 1133/ASTM D 1238, 280 C, 10 kg) 3.4.2 Glass Fiber Content 33 - 37% (ISO 3451/2, Method A, 1 h at 650 +/- 2 C) 3.5 MOLDED TEST SPECIMEN 3.5.1 Preparation of Test Specimens Unless otherwise specified all tests shall be carried out on
5、 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 the test specimen A and/or B. The specimens shall be
6、prepared according to ISO 294. No annealing allowed. 3.5.2 Density 1.52 - 1.56 g/cm3(ISO 1183, Method A/ASTM D 792, Method A1) ENGINEERING MATERIAL SPECIFICATIONWSB-M4D766-A Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 2 of 4 3.5.3 Tensile Strength at Break, min
7、 70 MPa (ISO R 527/ASTM D 638M, 150 min x 10 x 4.0 +/- 0.2 mm specimen, 50 mm/minute test speed) 3.5.4 Flexural Modulus, min 5.0 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 1140 - 1900 MPa (ASTM D 4065, forced co
8、nstant 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 vs. Temperature c
9、urve shall be plotted for -50 to +220 C temperature range, at 5 C minimum intervals. The plotted curve must be within tolerance range shown on page 4. 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 for each test) 3.5.6.1 At 2
10、3 +/- 2 C 700 J/m23.5.6.2 At -40 +/- 2 C 400 J/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 box, if not possible, test can be conducted outside, but within 5 s. 3.5.7 Heat De
11、flection Temperature, min 175 C (ISO 75/ASTM D 648, 120 x 10 x 4.0 +/- 0.2 mm specimen. At 1.82 MPa) 3.5.8 Heat Aging Performance (ISO 188/ASTM D 573, 150 +/- 50 air changes/h, 1000 h at 170 +/- 2 C. Unaged property values shall be determined at the time of the aged properties determination) 3.5.8.1
12、 Tensile Strength Change +/- 25% (Test Method per para 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) ENGINEERING MATERIAL SPECIFICATIONWSB-M4D766-A Printed copies are uncontrolled Copyright 2010, Ford Global Technologies
13、, LLC Page 3 of 4 3.6 FLAMMABILITY (ISO 3795) Burn Rate, max 100 mm/minute The specimen size required for material approval is 355 x 100 x 1.2 +/- 0.1 mm with a smooth surface. 3.7 FOGGING (FLTM BO 116-03) Fog Number, min 90 Formation of excessive amounts of clear film or droplets is cause for rejec
14、tion. 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 (ASTM D 696, -50 to 40 C) . Flow Direction 2.8-5/C . Transverse to Flow Direction 8.6-5/C 5.2 MOLD SHRI
15、NKAGE (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 0.42% 5.2.2 Post Shrinkage (Separate specimens required for each test) . After 48 h at 80 C 0.05% . After 30 min at 120 C 0.05% 5.3 HEAT DEFLECTION TEMPERATURE 207 C (ISO
16、 75/ASTM D 648, 120 x 10 x 4.0 +/- 0.2 mm specimen. At 0.45 MPa) 5.4 MELT TEMPERATURE 253 C(ISO 1218, Method B/ASTM D 789) 5.5 MELT VOLUME RATE 1.9 cm3/10 minutes (ISO 1133/ASTM D 1238, 280 C, 10 kg) ENGINEERING MATERIAL SPECIFICATIONWSB-M4D766-A Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 4 of 4
