1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2005 01 05 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.7, 3.8 & 4 1995 01 03 Released EP00E10460355000 K. Gerhards Printed copies are uncontrolled Copyright 2005, Ford Global Technologies, LLC Page 1 of 4 PHENOLIC (PF) 30% GLASS FIBER REINF
2、ORCED WSK-M3D176-A3 PRE-PREG SHEET MOLDING COMPOUND 1. SCOPE The material defined by this specification is a 30% glass fiber reinforced thermosetting pre-preg sheet molding compound based on phenolics. 2. APPLICATION This specification was released originally for material used as heat shield. 3. REQ
3、UIREMENTS 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 met with data representing
4、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 plaques shall have the fol
5、lowing dimensions: 300 x 300 mm minimum 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 0.9 - 1.04 g/cm3(ISO 1183, Method A) (s) 3.4.3 Filler Content 3.4.3.1 A
6、sh Content 42 +/- 5% (ISO 3451/1, Method A, 1 h at 650 +/- 25 C) 3.4.3.2 Glass Fiber Content By Weight 30 +/- 3% 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
7、 drying in an oven for 2 h at 120 +/- 2 C. After cooling, weigh the crucibles and calculate the percent glass fibers. ENGINEERING MATERIAL SPECIFICATIONWSK-M3D176-A3Printed copies are uncontrolled Copyright 2005, Ford Global Technologies, LLC Page 2 of 4 (s) 3.4.4 Tensile Strength at Max Load, min 2
8、0 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 3 GPa (ISO 178, 60 x 10 x 2.5 +/- 0.2 mm specimen, 40 mm support span, 2 mm/minute test speed) 3.4.6 Flexural Strength, min 40 MPa (ISO 178, 60 x 10 x 2.5 +/- 0.2 mm specimen, 40 mm support
9、 span, 2 mm/min test speed) 3.4.7 Shear Modulus at 23 C 0.9 - 1.5 MPa (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 mm cut from the center of specimen A. Specimen length between clamps 35-40 mm. Soak time at ea
10、ch temperature interval - 3 minutes minimum) Additionally, a Shear Modulus versus Temperature curve shall be plotted for -50 to +235 C temperature range, at 5 C minimum intervals. The plotted curve must be within tolerance range shown on page 6. (s) 3.4.8 Impact Strength, Izod, min (ISO 180, Method
11、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 kJ/m23.4.8.2 At -40 +/- 1 C 10 kJ/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. (
12、s) 3.4.9 Heat Deflection Temperature, min 240 C (ISO 75, 120 x 10 x 2.5 +/- 0.2 mm specimen, 0.32 +/- 0.01 mm deflection. At 1.80 MPa) 3.4.10 Heat Aging Performance (ISO 188, 150 +/- 50 air changes/h, 1000 h at 160 +/- 2 C. Unaged property values shall be determined at the time of the aged propertie
13、s determination) ENGINEERING MATERIAL SPECIFICATIONWSK-M3D176-A3Printed copies are uncontrolled Copyright 2005, Ford Global Technologies, LLC Page 3 of 4 3.4.10.1 Tensile Strength at Max Load Change +/- 25% (Test Method per para 3.4.4) 3.4.10.2 Flexural Strength Change +/- 25% (Test Method per para
14、3.4.6) 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 below is provided for clarification and assistance in meeting the requirements of this specific
15、ation. 5.1 COEFFICIENT OF LINEAR THERMAL EXPANSION 16-6/ C (ASTM E 228 or TMA, temperature range -30 - +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 +/- 0 5.2.2 Post Shrinkage . After 48 h at 120 C +/- 0 5.3 WATER ABSORPTION 45% (ISO 62, 24 h, boiling water, compression molded multipurpose specimen 150 min x 10 x 4.0 +/- 0.2 mm) 5.5 RECYCLING CODE PF-GF30 ENGINEERING MATERIAL SPECIFICATIONWSK-M3D176-A3Printed copies are uncontrolled Copyright 2005, Ford Global Technologies, LLC Page 4 of 4
