1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions 2006 08 23 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.7, 3.8 Fixed numbering in 3.4.8 1994 05 04 Released NB00I10043054327 GAM J.M. LaDuke Printed copies are uncontrolled Copyright 2004, Ford Global Technologies, LLC Page 1 of 4 UNSATURAT
2、ED POLYESTER (UP) 40% GLASS FIBER WSB-M3D173-A1 REINFORCED SHEET MOLDING COMPOUND 1. SCOPE The material defined by this specification is a 25 mm minimum long glass fiber reinforced unsaturated polyester (UP) sheet molding compound. 2. APPLICATION This specification was released originally for materi
3、al used for upper radiator support. 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 symbo
4、l (s), shall be met with data representing 3 sigma values. 3.4 MOLDED TEST SPECIMEN 3.4.1 Preparation of Test Specimens Unless otherwise specified all tests shall be carried out on compression molded test specimens. The following dimensions are required: A. 150 minimum x 10 x 4.0 +/- 0.2 mm (Tensile
5、 Bar, ISO 3167) B. 120 x 10 x 4.0 +/- 0.2 mm C. 13 x 13 x 25 mm (Compressive Strength Bar, ASTM D 695) Specimens with shorter dimensions shall be cut from the center portion of the test specimen A and/or B. The specimens shall be prepared under optimum conditions as defined by the manufacturer of ra
6、w material. No annealing allowed. 3.4.2 Density 1.79 - 1.88 g/cm3 (ISO 1183, Method A1) (s) 3.4.3 Filler Content 3.4.3.1 Ash Content 67 - 73% (ISO 3451/1, Method A, 1 h at 650 +/- 25 C) ENGINEERING MATERIAL SPECIFICATION WSB-M3D173-A1 Printed copies are uncontrolled Copyright 2004, Ford Global Techn
7、ologies, LLC Page 2 of 4 3.4.3.2 Glass Fiber Content, by Weight 37 - 44% Test Method: ISO 3451/1, Method B, 1 h at 650 +/- 25 C, except use 5% by volume hydrochloric acid solution for 15 minutes. Rinse the glass fibers several times with distilled water before drying in an oven for 2 h at 120 +/- 2
8、C. After cooling, weigh the crucibles and calculate the percent glass fibers. 3.4.3.3 Glass Fiber Length, min 25 mm (Optical evaluation method) (s) 3.4.4 Tensile Strength at Break, min 77 MPa (ISO R 527, 150 min x 10 x 2.5 +/- 0.2 mm specimen, 5 mm/min test speed) (s) 3.4.5 Flexural Modulus, min 8.0
9、 GPa (ISO 178, 60 x 10 x 2.5 +/- 0.2 mm specimen, 40 mm support span, 2 mm/minute test speed) (s) 3.4.6 Flexural Strength, min 150 MPa (ISO 178, 60 x 10 x 2.5 +/- 0.2 mm specimen, 40 mm support span, 2 mm/min test speed) 3.4.7 Shear Modulus At 23 C 3.8 - 6.4 GPa (ASTM D 4065, forced constant amplitu
10、de, 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 curve shall be p
11、lotted for -50 to +280 C temperature range, at 5 C minimum intervals. The plotted curve must be within tolerance range shown on page 4. (s) 3.4.8 Impact Strength, Izod, min (ISO 180/1A, 63.5 x 12.7 x 2.5 +/- 0.2 mm specimen, 10 specimens minimum) 3.4.8.1 At 23 +/- 2 C 80 kJ/m2 3.4.8.2 At -40 +/- 1 C
12、 92 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) 3.4.9 Heat Deflection Temperature, min 230 C (ISO 75, 120 x 10 x 2.5 +/- 0.2 mm specimen. At 1.80 MPa) ENGINEERI
13、NG MATERIAL SPECIFICATION WSB-M3D173-A1 Printed copies are uncontrolled Copyright 2004, Ford Global Technologies, LLC Page 3 of 4 (s) 3.4.10 Water Absorption, max 0.38% (ISO 62, 24 h, 50 x 50 x 2.5 +/- 0.2 mm specimen) 3.4.11 Heat Aging Performance (ISO 188, except 150 +/- 50 air changes/h, 1000 h a
14、t 160 +/- 2 C. Unaged property values shall be determined at the time of the aged properties determination) 3.4.11.1 Tensile Strength at Max Load Change +/- 25% (Test Method per para 3.4.4) 3.4.11.2 Flexural Strength Change +/- 25% (Test Method per para 3.4.6) 3.4.11.3 Impact Strength, Izod Change +
15、/- 25% (Test Method per para 3.5.8.1, specimens to be notched before heat aging) 3.5 FLAMMABILITY (ISO 3795) 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 provid
16、ed for clarification and assistance in meeting the requirements of this specification. 5.1 COEFFICIENT OF LINEAR THERMAL EXPANSION 0.8 - 1.3-5/ C (ASTM E 831 (TMA), temperature range -30 to 100 C) 5.2 MOLD SHRINKAGE (ISO 2577, approx. 300 x 300 x 2.5 +/- 0.2 mm injection molded specimen) 5.2.1 Molding Shrinkage . After 48 h at 23 +/- 2 C 0.04% growth 5.2.2 Post Shrinkage . After 48 h at 120 C 0.03% growth 5.3 RECYCLING CODE UP- (GF+M) 70 ENGINEERING MATERIAL SPECIFICATION WSB-M3D173-A1 Printed copies are uncontrolled Copyright 2004, Ford Global Technologies, LLC Page 4 of 4
