1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2004 12 16 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.6, 3.7 & 4 1993 03 05 Released NB00I10043054229 D.M. Keller Printed copies are uncontrolled Copyright 2004, Ford Global Technologies, LLC Page 1 of 4 UNSATURATED POLYESTER (UP), 22% GLA
2、SS FIBER WSB-M3D169-A REINFORCED SHEET MOLDING COMPOUND 1. SCOPE The material defined by this specification is 22 mm minimum long glass fiber reinforced unsaturated polyester (UP) sheet molding compound. 2. APPLICATION This specification was released originally for material used for exterior body pa
3、nels (e.g. fender). 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 m
4、et with data representing 3 sigma values. 3.4 MOLDED TEST SPECIMEN 3.4.1 Preparation of Test Specimens All test specimens shall be prepared from cross-ply molded plaques or equivalent. The plaques are to be manufactured from the same material and under equivalent conditions as production parts. The
5、plaques shall have the following dimensions: 300 x 300 mm, min x 2.5 +/- 0.2 mm Prepared specimens must show no evidence of fiber tear or loose fiber strands protruding from the specimens. No additional annealing of specimens is allowed. 3.4.2 Density 1.65 - 1.75 g/cm3(ISO 1183, Method A) (s) 3.4.3
6、Filler Content 3.4.3.1 Ash Content 62 - 73% (ISO 3451/1, Method A, 1 h at 650 +/- 25 C) ENGINEERING MATERIAL SPECIFICATIONWSB-M3D169-APrinted copies are uncontrolled Copyright 2004, Ford Global Technologies, LLC Page 2 of 4 3.4.3.2 Glass Fiber Content, by Weight 18 - 25% Test Method: ISO 3451/1, Met
7、hod B, 1 h at 650 +/- 25 C, except use 5% by volume hydrochloric acid solution for 15 min. Rinse the glass fibers several times with distilled water before drying in an oven for 2 h at 120 +/- 2 C. After cooling, weigh the crucibles and calculate the percent glass fibers. 3.4.3.3 Glass Fiber Length,
8、 min 25 mm (Optical evaluation method) (s) 3.4.4 Tensile Strength at Break, min 36 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 5 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 Fl
9、exural Strength, min 103 MPa (ISO 178, 60 x 10 x 2.5 +/- 0.2 mm specimen, 40 mm support span, 2 mm/ minute test speed) 3.4.7 Shear Modulus at 23 C 2.55 - 4.25 GPa (ASTM D 4065, forced constant amplitude, fixed frequency of 1 Hz +/- 15%, strain level below 1%. Specimen approx. 60 x 10 x 2.5 +/- 0.2 m
10、m 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 plotted for -50 to +250 C temperature range, at 5 C minimum intervals. The plotted curve must be with
11、in tolerance range shown on page 6. (s) 3.4.8 Impact Strength, Izod, min (ISO 180, Method A, 63.5 x 12.7 x 2.5 +/- 0.2 mm specimen, 10 specimens minimum) 3.4.8.1 At 23 +/- 2 C 10.7 kJ/m23.4.8.2 At -40 +/- 1 C 12.2 kJ/m2The test specimens must be conditioned for minimum of 6 h at the above specified
12、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. 3.4.9 Heat Deflection Temperature, min 235 C (ISO 75, 120 x 10 x 2.5 +/- 0.2 mm specimen. At 1.82 MPa) ENGINEERING MATERIAL SPECIFICATIONWSB-M3D169-APrinted copies are uncontrolled Copyright 2004, Ford Global Technologies, LLC Page 3 of 4 3.4.10 Water Absorption, max UP- (GF+M) 70) ENGINEERING MATERIAL SPECIFICATIONWSB-M3D169-APrinted copies are uncontrolled Copyright 2004, Ford Global Technologies, LLC Page 4 of 4
