1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions Rev 01 2017 02 04 Revised See Summary of Revisions A. Reaume, NA 2007 10 09 Activated H. Santos Controlled document at www.MATS Copyright 2017, Ford Global Technologies, LLC Page 1 of 5 POLYPHTHALAMIDE (PPA), 45% GLASS FIBER REINFORCED, WSS-M
2、4D997-A 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. 2. APPLICATION This specification was released originally for ma
3、terial used for cooling system components water pump inlets. 3. REQUIREMENTS 3.1 APPROVED SOURCES This specification requires the use of approved sources. Only the sources identified on the Ford Approved Source List (ASL) can be used when this specification is listed on the drawing, CAD file, or oth
4、er documents. The list of approved sources is located within Ford at or available externally through a Ford Materials Engineer. 3.2 MOLDING COMPOUND 3.2.1 Glass Fiber Content 43 - 48% (ISO 3451/1, Method A, 1 h at 825 +/- 50 C) 3.2.2 Melt Temperature, 302 - 322 C (ISO 11357-3, or ASTM D 3418) 3.3 M
5、OLDED 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 B. 120 x 10 x 4.0 +/- 0.2 mm Specimens with shorter dimensions shall
6、 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 SPECIFICATION WSS-M4D997-A Copyright 2017, Ford Global Technologies, Inc. Page 2 of 5 3.3.2 Density 1.51 - 1.62 g/cm3 (ISO 1183, Method A)
7、 3.3.3 Tensile Strength at Break 216 MPa min (ISO R 527, 150 min x 10 x 4.0 +/- 0.2 mm specimen, 5 mm/ min test speed) 3.3.4 Flexural Modulus 10.3 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
8、 mm specimen, 10 specimens for each test) 3.3.5.1 At 23 +/- 2 C 7.1 kJ/m2 min 3.3.5.2 At -40 +/- 2 C 6.1 kJ/m2 min The 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 poss
9、ible, test can be conducted outside, but within 5 s. 3.3.6 Heat Deflection Temperature 265 C min (ISO 75-1 & ISO 75-2, 80 x 10 x 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/
10、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 -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 hea
11、t aging) 3.3.8 Cooling Agent Resistance (FLTM BO 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 determina
12、tion) 3.3.8.1 Tensile Strength change at Max Load -45% max (Test Method per para 3.5.3) 3.3.8.2 Impact Strength change, Izod -35% max (Test Method per para 3.3.5.1, specimens to be notched before ENGINEERING MATERIAL SPECIFICATION WSS-M4D997-A Copyright 2017, Ford Global Technologies, Inc. Page 3 of
13、 5 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 (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
14、INFORMATION The information below is provided for clarification and assistance in meeting the requirements of this specification. Contact for questions concerning Engineering Material Specifications. 4.1 COEFFICIENT OF LINEAR THERMAL EXPANSION (ASTM E 831) 0 - 100 C (1.5 - 6.0)-5/C 100 - 250 C (1.0
15、 - 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 D 648M, 80 x 10 x 4.0 +/- 0.2 mm specimen. At 0.45 Mpa 4.4 RECYCLE CODE PPA-GF4
16、5 4.5 APPROVAL OF MATERIALS Suppliers desiring approval of their materials shall first obtain an expression of interest from Purchasing, Design or Product Development, and Materials Engineering. The supplier shall submit a completed copy of their laboratory test reports, signed by a qualified and au
17、thorized representative of the test facility, demonstrating full compliance with all the requirements of the Material Specification. Tested material samples must be available for review upon request and kept for a minimum of one year. Upon request, the supplier will review the associated quality con
18、trol documents (Process Failure Mode and Effects Analysis, Control Plans, Certification testing) with Ford. 4.6 SUPPLIERS ONGOING RESPONSIBILITY All materials must be equivalent in all characteristics to the material upon which approval was originally granted. ENGINEERING MATERIAL SPECIFICATION WSS-
19、M4D997-A Copyright 2017, Ford Global Technologies, Inc. Page 4 of 5 Prior to making any changes to the material originally approved, whether or not such changes affect the materials ability to meet the specification requirements, the supplier shall notify the affected Supplier Technical Assistance (
20、STA), Purchasing, and Materials Engineering activities of the proposed changes (with reasons) by submission of a completed Suppliers Request for Engineering Approval, SREA. For parts and components using Ford Engineering Material Specifications, all samples tested to the specifications for Design Ve
21、rification (DV), Production Verification (PV) and Production Part Approval Process (PPAP) sign off must be kept until Job 1. 4.7 RESTRICTED SUBSTANCE MANAGEMENT STANDARD Substance restrictions imposed by regulations or Company direction applies to the materials addressed by this document. The restri
22、ctions are identified in the Restricted Substance Management Standard WSS-M99P9999-A1 which is updated yearly. It is the suppliers responsibility to comply with this standard on a continuing basis through IMDS and or GMAP reporting. 5. SUMMARY OF REVISIONS 2017 02 04 Updated the standard paragraphs
23、Modified upper limit of glass fiber content and melt temperature. Modified upper limit of density Modified impact strength change, Izod ENGINEERING MATERIAL SPECIFICATION WSS-M4D997-A Copyright 2017, Ford Global Technologies, Inc. Page 5 of 5 Tensile Properties versus Temperature: 0501001502002503000 20 40 60 80 100 120 140 160Temperature, CMPa051015GPa, %TS, MPaTM, GPaElong., %
