1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2009 12 10 Revised See summary of revisions J. Souza, SA 2005 10 14 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.7, 3.8 aluminum foil, 180 - 200 C molding temperature, 15 +/- 2 C/min cooling rate. The values of this specification are based o
2、n unannealed specimens. 3.5.2 Density 0.942 - 0.948 g/cm3(ISO 1183, Method A/ASTM D 792, Method A1) 3.5.3 Tensile Strength at Yield, min 20 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 Break, min 200% (Test Method according to par
3、a 3.5.3) 3.5.4 Flexural Modulus, min 880 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-M4D645-A Printed copies are uncontrolled Copyright 2009, Ford Global Technologies, LLC Page 2 of 4 3.5.6 Impact Stren
4、gth, Izod, min (ISO 180, Method A/ASTM D 256, Method A, 63.5 x 10 x 4.0 +/- 0.2 mm specimen, 10 specimens for each test) 3.5.6.1 At 23 +/- 2 C 20 kJ/m23.5.6.2 At -40 +/- 2 C 16 kJ/m2The test specimens must be conditioned for minimum of 6 h at the above specified temperature prior to impact test. Low
5、 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 40 C (ISO 75/ASTM D 648, 120 x 10 x 4.0 +/- 0.2 mm specimen, at 1.82 MPa) 3.5.8 Heat Aging Performance (ISO 188/ASTM D 573, 1000 h at 120 +/-
6、 2 C. Unaged property values shall be determined at the time of the aged properties determination) 3.5.8.1 Tensile Strength Change +/- 15% (Test Method per para 3.5.3) 3.5.8.2 Impact Strength, Izod Change,max -15% (Test Method per para 3.5.6.1, specimens to be notched before heat aging) 3.6 FLAMMABI
7、LITY (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 surface. ENGINEERING MATERIAL SPECIFICATIONWSK-M4D645-A Printed copies are uncontrolled Copyright 2009, Ford Global Technologies, LLC Page 3 of 4 5. GENERAL INFOR
8、MATION The information given below is provided for clarification and assistance in meeting the requirements of this specification. 5.1 COEFFICIENT OF LINEAR THERMAL EXPANSION 11 19-5/ 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 3.0% 5.2.2 Post Shrinkage (Separate specimens required for each test) . After 48 h at 80 C 3.0% . After 30 minutes at 120 C 6.0% 6. SUMMARY OF REVISIONS 2009 12 10 Remove Item 3.5.5 Shear Modulus at 23 C
