1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2007 10 09 Activated H. SantosPrinted copies are uncontrolled Copyright 2007, Ford Global Technologies, Inc. Page 1 of 4 POLYPHTHALAMIDE (PPA), 45% GLASS FIBER REINFORCED, WSS-M4D997-A COOLING AGENT RESISTANT, MOLDING COMPOUND 1. SCOPE The mat
2、erial defined by this specification is a glass fiber reinforced polyphthalamide molding compound. The material is compounded to resist degradation by hot engine coolant. 2. APPLICATION This specification was released originally for material used for cooling system components water pump inlets. 3. RE
3、QUIREMENTS 3.1 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.2 MOLDING COMPOUND 3.2.1 Glass Fiber Content 43 - 47% (ISO 3451/1, Method A, 1 h at 825 +/- 50 C) (s) 3.
4、2.2 Melt Temperature, 302 - 320 C (ISO 11357-3, or ASTM D 3418) 3.3 MOLDED TEST SPECIMEN 3.3.1 Preparation of Test Specimens Unless otherwise specified all tests shall be carried out on injection molded one-end gated test specimens. The following dimensions are required: A. 150 x 10 x 4.0 +/- 0.2 mm
5、 B. 120 x 10 x 4.0 +/- 0.2 mm Specimens with shorter dimensions shall be cut from the center portion of the test specimen A and/or B. The specimens shall be prepared according to ISO 294. No annealing allowed. ENGINEERING MATERIAL SPECIFICATIONWSS-M4D997-A Printed copies are uncontrolled Copyright 2
6、007, Ford Global Technologies, Inc. Page 2 of 4 3.3.2 Density 1.51 - 1.59 g/cm3(ISO 1183, Method A) (s) 3.3.3 Tensile Strength at Break, min 216 MPa (ISO R 527, 150 min x 10 x 4.0 +/- 0.2 mm specimen, 5 mm/ min test speed) (s) 3.3.4 Flexural Modulus, min 10.3 GPa (ISO 178, 80 x 10 x 4.0 +/- 0.2 mm s
7、pecimen, 2 mm/min test speed, 64 mm support span) (s) 3.3.5 Impact Strength, Izod, min (ISO 180, 80 x 10 x 4.0 +/- 0.2 mm specimen, 10 specimens for each test) 3.3.5.1 At 23 +/- 2 C 7.1 kJ/m23.3.5.2 At -40 +/- 2 C 6.1 kJ/m2The test specimens must be conditioned for minimum of 6 h at the above specif
8、ied 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. (s) 3.3.6 Heat Deflection Temperature, min 265 C (ISO 75-1 & ISO 75-2, 80 x 10 x 4.0 +/- 0.2 mm specimen use center section of specimen A,
9、flatwise, 0.34 +/- 0.1 mm deflection. At 1.80 MPa) 3.3.7 Heat Aging Performance (ISO 188, 150 +/- 50 air changes/h, 1000 h at 180 +/- 2 C. Unaged property values shall be determined at the time of the aged properties determination) 3.3.7.1 Tensile Strength Change, max -25% (Test Method per para 3.3.
10、3) 3.3.7.2 Impact Strength, Izod Change, max -25% (Test Method per para 3.3.5.1, specimens to be notched before heat aging) ENGINEERING MATERIAL SPECIFICATIONWSS-M4D997-A Printed copies are uncontrolled Copyright 2007, Ford Global Technologies, Inc. Page 3 of 4 3.3.8 Cooling Agent Resistance (FLTM B
11、O 130-01, 1000 h at 130 +/- 2 C, 50/50% coolant/water, 10 test specimens minimum, engine coolant acc.to WSS-M97B51-A1 and/or approved coolant of affected model year. Unaged property values shall be determined at the time of the aged properties determination) 3.3.8.1 Tensile Strength change at Max Lo
12、ad, max -45% (Test Method per para 3.5.3) 3.3.8.2 Impact Strength change, Izod, max -25% (Test Method per para 3.3.5.1, specimens to be notched before immersion) 3.3.8.3 Abrasion Resistance after exposure, 0.03 mm loss, max (FLTM BN 108-02, CS-17 wheels, 1000 g load, 1000 cycles) 3.4 FLAMMABILITY (I
13、SO 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. 4. GENERAL INFORMATION The information below is provided for clarification and assistance in meeting the requirements of this specification. 4.1 COEFFICIENT OF
14、LINEAR THERMAL EXPANSION (ASTM E 831) 0 - 100 C (1.5 - 6.0)-5/C 100 - 250 C (1.0 - 11.3)-5/C 4.2 MOLD SHRINKAGE (ISO 2577, approx. 150 x 100 x 3.2 +/- 0.2 mm injection molded specimen) 4.2.1 Molding Shrinkage . After 48 h at 23 +/- 2 C 0.1 - 0.6% 4.3 HEAT DEFLECTION TEMPERATURE 304 C (ISO 75 Bf/ASTM
15、 D 648M, 80 x 10 x 4.0 +/- 0.2 mm specimen. At 0.45 Mpa 4.4 RECYCLE CODE PPA-GF45 ENGINEERING MATERIAL SPECIFICATIONWSS-M4D997-A Printed copies are uncontrolled Copyright 2007, Ford Global Technologies, Inc. Page 4 of 4 Tensile Properties versus Temperature: 0501001502002503000 20 40 60 80 100 120 140 160Temperature, CMPa051015GPa,%TS, MPaTM, GPaElong., %
