1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2004 12 16 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.7, 3.8 & 4 1993 06 23 Released NB00I10043054263 L.A. GrahamPrinted copies are uncontrolled Copyright 2004, Ford Global Technologies, LLC Page 1 of 4 UNSATURATED POLYESTER (UP), 28% GLAS
2、S FIBER WSB-M3D170-A REINFORCED REMANUFACTURED SHEET MOLDING COMPOUND 1. SCOPE The material defined by this specification is a glass fiber reinforced unsaturated polyester (UP), sheet molding compound. This material is composed of 20% by filler volume of remanufactured SMC. 2. APPLICATION This speci
3、fication was released originally for material used for painted engine covers. 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
4、of this specification, identified by symbol (s), shall be met 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 materia
5、l and under equivalent conditions as production parts. The 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
6、2 Density 1.70 - 1.82 g/cm3(ISO 1183, Method A) (s) 3.4.3 Filler Content 3.4.3.1 Ash Content 61 - 68% (ISO 3451/1, Method A, 1 h at 650 +/- 25 C) ENGINEERING MATERIAL SPECIFICATIONWSB-M3D170-APrinted copies are uncontrolled Copyright 2004, Ford Global Technologies, LLC Page 2 of 4 3.4.3.2 Glass Fib
7、er Content, By Weight 23 - 32% Test Method: ISO 3451/1, Method 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 calc
8、ulate the percent glass fibers. 3.4.3.3 Glass Fiber Length, min 22 mm (Optical evaluation method) (s) 3.4.4 Tensile Strength at Break, min 53 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 8.8 GPa (ISO 178, 60 x 25 x 2.5 +/- 0.2 mm speci
9、men, 40 mm support span) (s) 3.4.6 Flexural Strength, min 162 MPa (ISO 178, 60 x 25 x 2.5 +/- 0.2 mm specimen, 40 mm support span, 2 mm/ minute test speed) 3.4.7 Shear Modulus at 23 C 3.2 - 5.4 GPa (ASTM D 4065, forced constant amplitude, fixed frequency of 1 Hz +/- 15%, strain level below 1%. Speci
10、men approx. 60 x 10 x 2.5 +/- 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 plotted for -50 to +220 C temperature range, at 5 C minimum inte
11、rvals. The plotted curve must be within tolerance range shown on page 4. (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 94 kJ/m23.4.8.2 At -40 +/- 2 C 69 kJ/m2The test specimens must be conditioned for minim
12、um 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 260 C (ISO 75, 120 x 10 x 2.5 +/- 0.2 mm specimen) ENGINEERING MATERIAL SPECIFICATIONWSB-M3D170-APrinted copies are uncontrolled Co
13、pyright 2004, Ford Global Technologies, LLC Page 3 of 4 3.4.10 Heat Aging Performance (ISO 188, except 150 +/- 50 air changes/h, 1,000 h at 150 +/- 2 C. Unaged property values shall be determined at the time of the aged properties determination) 3.4.10.1 Tensile Strength Change +/- 25% (Test Method
14、per para 3.4.4) 3.4.10.2 Flexural Strength Change +/- 25% (Test Method per para 3.4.6) 3.4.10.3 Impact Strength, Izod Change +/- 25% (Test Method per para 3.4.8.1, specimens to be notched before heat aging) (s) 3.4.10 Water Absorption, max 0.3% (ISO 62, 24 h, 50 x 50 x 2.5 +/- 0.2 mm specimen) 3.5 F
15、LAMMABILITY (ISO 3795) Burn Rate, max 100 mm/minute The specimen size required for material approval is 355 x 100 x 2.5 +/- 0.2 mm with a smooth surface. 3.6 FOGGING (FLTM BO 116-03, 3 h at 100 C) Fog Number, min 98 Formation of clear film or droplets is cause for rejection. 5. GENERAL INFORMATION T
16、he information given below is provided for clarification and assistance in meeting the requirements of this specification. 5.1 COEFFICIENT OF LINEAR THERMAL EXPANSION 2.18-5/ C (ASTM D 696) 5.2 MOLD SHRINKAGE (ISO 2577, approx. 300 x 300 x 2.5 +/- 0.2 mm compression molded specimen) 5.2.1 Molding Shrinkage . After 48 h at 23 +/- 2 C 0.09% 5.2.2 Post Shrinkage . After 48 h at 120 C 0.00% 5.3 RECYCLING CODE UP- (GF+M) 65 ENGINEERING MATERIAL SPECIFICATIONWSB-M3D170-APrinted copies are uncontrolled Copyright 2004, Ford Global Technologies, LLC Page 4 of 4
