1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2010 01 15 N-STATUS No replacement named J. Crist, NA 2006 03 13 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.8, 3.9 aluminum foil, 180 - 200 C molding temperature, 15 +/- 2 C/min cooling rate. The values of this specification are based on u
2、nannealed specimens. 3.5.2 Density 0.915 - 0.925 g/cm3(ISO 1183, Method A/ASTM D 792, Method A1) 3.5.3 Tensile Strength at Yield, min 9 MPa (ISO R 527/ASTM D 638M, 150 min x 10 x 4.0 +/- 0.2 mm specimen, 50 mm/minute test speed) 3.5.3.1 Elongation at Yield, min 20% (Test Method according topara 3.5.
3、3)3.5.4 Flexural Modulus, min 220 MPa (ISO 178/ASTM D 790M, Method I, Procedure A, 80 x 10 x 4.0 +/- 0.2 mm specimen, 64 mm support span) ENGINEERING MATERIAL SPECIFICATIONWSK-M4D798-A Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 2 of 4 3.5.5 Shear Modulus at 23
4、 C 114 - 171 MPa (ASTM D 4065, forced constant amplitude, 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. Additionally, a Shear Modulus vs. Temperature curve shall be plotted for -50 to +70 C temperature range, at 5
5、 C minimum intervals. The plotted curve must be within tolerance range shown on page 4. 3.5.6 Impact Strength, Izod, min (ISO 180, Method A/ASTM D 256, Method A, 80 x 10 x 4.0 +/- 0.2 mm specimen, 10 specimens for each test) 3.5.6.1 At 23 +/- 2 C No break 3.5.6.2 At -20 +/- 2 C 40 kJ/m23.5.6.3 At -4
6、0 +/- 2 C 2 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, if not possible, test can be conducted outside, but within 5 s. 3.5.7 Heat Deflection Temperature, min 37 C (
7、ISO 75/ASTM D 648, 120 x 10 x 4.0 +/-0.2 mm specimen. At 0.45 MPa) 3.5.8 Heat Aging Performance (ISO 188/ASTM D 573, 150 +/- 50 air changes/h, 1000 h at 100 +/- 2 C. Unaged property values shall be determined at the time of the aged properties determination) 3.5.8.1 Tensile Strength Change +/- 15% (
8、Test Method per para 3.5.3) 3.5.8.2 Impact Strength, Izod, min 32 kJ/m2(Test Method per para 3.5.6.1, specimens to be notched before heat aging) 3.6 FLAMMABILITY (ISO 3795) Burn Rate, max 100 mm/minute The specimen size required for material approval is 355 x 100 x 1.0 +/- 0.1 mm with a smooth surfa
9、ce. ENGINEERING MATERIAL SPECIFICATIONWSK-M4D798-A Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 3 of 4 3.7 FOGGING (FLTM BO 116-03) Fog Number, min 80 Formation of excessive amounts of clear film or droplets is cause for rejection. 5. GENERAL INFORMATION The inf
10、ormation given below is provided for clarification and assistance in meeting the requirements of this specification. 5.1 COEFFICIENT OF LINEAR THERMAL EXPANSION 27-5/C (ASTM D 696) 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 2.0% 5.2.2 Post Shrinkage (Separate specimens required for each test) . After 48 h at 80 C 1.0% . After 30 minutes at 120 C 2.0% ENGINEERING MATERIAL SPECIFICATIONWSK-M4D798-A Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 4 of 4
