1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions Rev 02 2014 09 04 Revised See Summary of Revisions G. Kowalski, NA 2013 07 03 Revised See Summary of Revisions G. Kowalski, NA 2003 10 02 Activated A. Reaume Controlled document at www.MATS Copyright 2014, Ford Global Technologies, Inc. Page
2、1 of 4 POLYPHTHALAMIDE (PPA), 33% GLASS FIBER WSS-M4D861-A3 REINFORCED, COOLING AGENT RESISTANT, MOLDING COMPOUND 1. SCOPE The material defined by this specification is a glass fiber reinforced polyphthalamide molding compound. The material is compounded to resist degradation by hot engine coolant.
3、2. APPLICATION This specification was released originally for material used for cooling system components. 3. REQUIREMENTS 3.1 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P111
4、1-A). 3.2 MOLDING COMPOUND 3.2.1 Glass Fiber Content 31 38% (ISO 3451/1, Method A, 1 h at 825 +/- 50 C) 3.2.2 Melt Temperature 290- 325 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
5、molded one-end gated test specimens. The following dimensions are required: A. 150 x 10 x 4.0 +/- 0.2 mm 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 annea
6、ling allowed. 3.3.2 Density 1.4 - 1.6 g/cm3 (ISO 1183, Method A) ENGINEERING MATERIAL SPECIFICATION WSS-M4D861-A3 Copyright 2013, Ford Global Technologies, Inc. Page 2 of 4 3.3.3 Tensile Strength at Break 191 MPa min (ISO R 527, 150 min x 10 x 4.0 +/- 0.2 mm specimen, 5 mm/ min test speed) 3.3.4 Fle
7、xural Modulus 7.9 GPa min (ISO 178, 80 x 10 x 4.0 +/- 0.2 mm specimen, 2 mm/min test speed, 64 mm support span) 3.3.5 Impact Strength, Izod (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 5.4 kJ/m2 min 3.3.5.2 At - 40 +/- 2 C 5.2 kJ/m2 min The test spec
8、imens 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. 3.3.6 Heat Deflection Temperature 240 C min (ISO 75-1 & ISO 75-2, 80 x 10 x
9、 4.0 +/- 0.2 mm specimen use center section of specimen A, 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 T
10、ensile Strength Change - 25% max (Test Method per para 3.3.3) 3.3.7.2 Impact Strength, Izod Change - 25% max (Test Method per para 3.3.5.1, specimens to be notched before heat aging) 3.3.8 Cooling Agent Resistance (FLTM BO 130-01, 1000 h at 130 +/- 2 C, 50/50% coolant/water, 10 test specimens minimu
11、m, 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 Load -50% max (Test Method per para 3.5.3) ENGINEERING MATERIAL SPECIFICATION WSS
12、-M4D861-A3 Copyright 2013, Ford Global Technologies, Inc. Page 3 of 4 3.3.8.2 Impact Strength change, Izod -35% max. (Test Method per para 3.3.5.1, specimens to be notched before immersion) 3.3.8.3 Abrasion Resistance after exposure, 0.03 max mm loss (FLTM BN 108-02, CS-17 wheels, 1000 g load, 1000
13、cycles) 3.4 FLAMMABILITY (ISO 3795) Burn Rate 100 mm/minute max 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 specific
14、ation. Contact for questions concerning Engineering Material Specifications. 4.1 COEFFICIENT OF LINEAR THERMAL EXPANSION (ASTM E 831) 0 - 100 C (2.4 - 4.5) E-5/C 100 - 250 C (1.5 - 10.0) E-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
15、Shrinkage . After 48 h at 23 +/- 2 C 0.2 - 0.6% 4.3 HEAT DEFLECTION TEMPERATURE 302 C (ISO 75 Bf/ASTM D 648M, 80 x 10 x 4.0 +/- 0.2 mm specimen. At 0.45 Mpa 4.4 RECYCLE CODE PPA-GF33 5. SUMMARY OR REVISIONS 2014-09-04 Change glass fiber content (3.2.1) from 37 to 38% Change melt temperature (3.2.2)
16、from 319 to 325oC Change density (3.3.2) from 1.5 to 1.6 g/cm3 Changed heat deflection temperature (3.3.6) from 262 C to 140 C Changed cooling agent resistance (3.3.8), izod and tensile 2013 07 03 Change lower end of melt temperature (3.2.2) from 302C to 290C Changed heat deflection temperature (3.3.6) from 262C to 240C Changed tensile strength at max load (3.3.8.1) from -45% to -50% Changed impact strength change (3.3.8.2) from -25% to -35% ENGINEERING MATERIAL SPECIFICATION WSS-M4D861-A3 Copyright 2013, Ford Global Technologies, Inc. Page 4 of 4 Tensile Properties versus Temperature:
