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1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions 2006 04 13 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.8, 3.9 remaining test method per para 3.5.4) (s) 3.5.7 Impact Strength, Izod, min (ISO 180/1A, 80 x 10 x 4.0 +/- 0.2 mm specimen, 10 specimens for each test) 3.5.7.1 At 23 +/- 2 C 2.3
2、kJ/m2 3.5.7.2 At -40 +/- 1 C 1.4 kJ/m2 The test specimens must be conditioned for min of 6 h at the above specified temperature prior to impact test. Low temperature testing shall be done within the cold box. (s) 3.5.8 Heat Deflection Temperature, min (ISO 75, 120 x 10 x 4.0 +/- 0.2 mm specimen, 0.3
3、2 +/- 0.01 mm deflection) 3.5.8.1 At 1.80 MPa 48 C 3.5.8.2 At 0.45 MPa 98 C 3.5.9 Heat Aging Performance (ISO 188, except 150 +/- 50 air changes/h, 1000 h at 130 +/- 2 C. Unaged property values shall be determined at the time of the aged properties determination) 3.5.9.1 Tensile Strength at Max Load
4、 +/- 5% Change, max (Test Method per para 3.5.4) ENGINEERING MATERIAL SPECIFICATION WSS-M4D841-A4 Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 3 of 3 3.5.9.2 Impact Strength, Izod Change, -20% max (Test Method per para 3.5.7.1, specimens to be notched before hea
5、t aging) 3.6 FOGGING (SAE J1756, 3 h at 100 C heating, 21 C cooling plate, post test conditioning 1 h) Fog Number, min 80 Formation of clear film, droplets or crystals is cause for rejection. 3.7 FLAMMABILITY (ISO 3795) Burn Rate, max 100 mm/minute The specimen size required for material approval is
6、 355 x 100 x 1.0 +/- 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 6.6 - 7.8 -5/ C (ISO 11359-2 (TMA), temperature range -30 t
7、o+30 C) 5.2 MOLD SHRINKAGE (ISO 2577, approximately 150 x 100 x 3.2 +/- 0.2 mm injection molded specimen) 5.2.1 Molding Shrinkage . After 48 h at 23 +/- 2 C 0.8 - 1.1% 5.2.2 Post Shrinkage (Separate specimens required for each test) . After 48 h at 80 C 0.1 - 0.2% . After 30 minutes at 120 C 0.2 - 0.3% 5.3 TENSILE STRENGTH AT YIELD, min 18.5 MPa (Test Method according to para 3.5.4) 5.3.1 Elongation at Yield, min 3.3% (Test Method according to para 3.5.4) 5.4 RECYCLING CODE PP+TD12PP+TD15 -,-,-