1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions 2006 09 20 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.6, 3.7 & 4 1992 05 01 Released EP00E10176267000 P. Kuntze Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 1 of 3 PHENOLIC (PF) 40% GLASS FIBER REINFO
2、RCED SHEET WSK-M97D2-A 1. SCOPE The material defined by this specification is a high heat resistant composite sheet of 40% chopped strand E glass fibers homogeneously encapsulated in a fully curable phenolic resin. This material is self- extinguishing (SE) without flame retardant additives. It may b
3、e used for the hand-lay process, direct fiber preform process or modified wet-lay-up molding. 2. APPLICATION This specification was released originally for material used for heat insulation shields. Note: This material absorbs water and should not be used without surface protection. 3. REQUIREMENTS
4、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 MOLDED TEST SPECIMEN 3.4.1 Preparation of Test Specimens All test specimens shall be die-cut from strainless mold
5、ed flat test sheets manufactured from the same material composition and under equivalent process conditions as production parts. The thickness of test specimen shall be 2.5 +/- 0.5 mm. Edges of specimens shall be flat, clean and at right angles to the surface. Before die-cutting of the individual te
6、st specimen, the molded test sheets shall be annealed according to the following cycle: 30 minutes at 50 - 55 C 4 h at 80 - 85 C 24 h minimum at 23 +/- 2 C 3.4.2 Density (ISO 1183, Method A/ASTM D 792, Method A1) Hand-lay-up Process 1.15 - 1.35 g/cm3 Direct Fiber Preform Process 1.10 - 1.30 g/cm3 3.
7、4.3 Ash Content 30 - 45% (ISO 3451/1, Method A, except 2 h at 850 +/- 50 C) ENGINEERING MATERIAL SPECIFICATION WSK-M97D2-A Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 2 of 3 3.4.4 Tensile Strength at Break, min 50 MPa (ISO R 527/ASTM D 638M, 150 min x 10 x 2.5
8、/- 0.5 mm specimen, 5 mm/min test speed) 3.4.5 Flexural Modulus, min 4.7 GPa (ISO 178/ASTM D 790M, Method I, Procedure A, 80 x 10 x 2.5 +/- 0.5 mm specimen, 1.25 mm/min test speed, 64 mm support span, the radius of the loading nose 5.0 +/- 0.1 mm and of the supports 2.0 +/- 0.2 mm) 3.4.6 Flexural S
9、trength, min 75 MPa (Test method per para 3.4.5) 3.4.7 Impact Strength, Izod, Unnotched, min (ISO 180/ASTM D 256, no notch on either side, 80 x 10 x 2.5 +/- 0.5 mm specimen, 10 specimens for each test) 3.4.7.1 At 23 +/- 2 C 55 kJ/m2 3.4.7.2 At -40 +/- 2 C 55 kJ/m2 The test specimens must be conditio
10、ned 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. 3.4.8 Heat Aging Performance (ISO 188/ASTM D 573, 150 +/- 50 air changes/h, 1000 h at 190 +/- 2 C
11、 Unaged property values shall be determined at the time of the aged properties determination) 3.4.8.1 Impact Strength, min 20 kJ/m2 (Test Method per para 3.4.7.1, 10 specimens for each test) 3.4.8.2 Flexural Strength, min 10 MPa (Test Method per para 3.4.6, 10 specimens for each test) 3.4.9 Water A
12、bsorption, max 12% (ISO 62, 96 h/ASTM D 570, 96 h) ENGINEERING MATERIAL SPECIFICATION WSK-M97D2-A Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 3 of 3 3.5 FLAMMABILITY (ISO 3795) Burn Rate, max 100 mm/minute Self-extinguishing (SE) The specimen size required for
13、material approval is 355 x 100 x 1.8 +/- 0.1 mm with a smooth surface. 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 0.7 - 1.3-5/ C (ASTM D 696) 5.2 POST SHRINKAGE (ISO 2577, test specimen 110 x 10 x 4 mm) . After 48 h at 235 C 0.08% 5.3 MAXIMUM TEMPERATURE FOR CONTINUOUS USE 250 C 5.4 RECYCLING CODE SAE or PF-GF40 PF-GF40 OPTIONAL
