1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2006 05 04 N-STATUS Replaced by WSK-M4D653-A; Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.7, 3.8, 4 A. Reaume/M. Masserant 2000 10 25 Activated J. Faunt Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 1 of 6 POLYA
2、MIDE (PA6/66) 6/66 COPOLYMER, HEAT STABILIZED WSS-M4D973-A 13% GLASS FIBER REINFORCED MOLDING COMPOUND NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material described by this specification is a heat stabilized, glass fiber reinforced polyamide 6/66 copolymer molding compound. 2. APPLICATION This speci
3、fication was released originally for material used for Corporate Keyless Entry Keypad. NOTICE: This material absorbs and retains moisture. Part design and tolerances must accommodate changes in part dimensions and physical properties due to moisture absorption or loss in the service/assembly environ
4、ment. 3. REQUIREMENTS Material specification requirements are to be used for initial qualification of materials. 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.4
5、MOLDING COMPOUND 3.4.1 Glass Fiber Content 11 15% (ASTM D 5630/ ISO 3451/4, 600 +/- 25 C test temperature) 3.4.2 Melt Temperature, min 230 240 C ISO 3146 3.5 MOLDED TEST SPECIMEN 3.5.1 Preparation of Test Specimens Unless otherwise specified all tests shall be carried out on injected molded one-end
6、gated test specimens. The following dimensions are required: A. 150 min x 10 x 4.0 +/- 0.2 mm (Tensile Bar, ISO 527) B. 120 x 10 x 4.0 +/- 0.2 mm ENGINEERING MATERIAL SPECIFICATIONWSS-M4D973-A Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 2 of 6 Specimens with sh
7、orter 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. 3.5.2 Density 1.19 1.25 g/cm3(ISO 1183, Method A) 3.5.3 Tensile Strength at Max Load, min 95 MPa (ISO 527, Specimen A, 5 mm/min test spee
8、d) 3.5.4 Flexural Modulus, min 4600 MPa (ISO 178, 80 x 10 x 4.0 +/- 0.2 mm Specimen, 64 mm support span) 3.5.5 Shear Modulus at 23 C 1275 1915 MPa (ASTM D 4065, forced constant amplitude, fixed frequency of 1Hz +/- 15%, strain level below 1%. Specimen approx. 60 x 10 x 4.0 +/- 0.2 mm cut from the ce
9、nter of specimen A. Specimen length between clamps 35 40 mm. Soak time at each temperature interval 3minutes min) Additionally, a Shear Modulus vs. Temperature curve shall be plotted for -50 to 220 C temperature range, at 5 C minimum intervals. The plotted curve must be within tolerance range shown
10、on page 6. 3.5.6 Impact Strength, Izod, min (ISO 180, 63.5 x 10 x 4.0 +/- 0.2 mm specimen, 10 specimens for each test) 3.5.6.1 At 23 +/- 2 C 2.6 kJ/m23.5.6.2 At -40 +/- 2 C 2.4 kJ/m2The test specimens must be conditioned for a minimum of 6 h at the temperature specified above prior to impact test. L
11、ow temperature testing shall be done within the cold box, if not possible, the test can be conducted outside, but within 5 seconds. 3.5.7 Heat Deflection Temperature, min 195 C (ISO 75, 80 x 10 x 4.0 +/- 0.2 mm specimen, at 1.80 MPa) 3.5.8 Heat Aging Performance (ISO 188, 150 +/- 50 air changes/h 10
12、00 h at 110 +/- 2 C. After heat aging test specimens are to be conditioned in a desiccator for 3 5 h at 23 +/- 2 C. Unaged property values shall be determined at the time of the aged property determination) 3.5.8.1 Impact Strength, Izod Change +/- 25% (Test Method per para 3.5.6.1, specimens notched
13、 before heat aging) ENGINEERING MATERIAL SPECIFICATIONWSS-M4D973-A Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 3 of 6 3.6 WEATHERING RESISTANCE After exposure in accordance with para 3.6.1, 3.6.2 and 3.6.3, the material shall show no color change in excess of s
14、pecified Gray Scale rating (AATCC Evaluation Procedure 1/ISO 105-A02). In addition, there shall be no cracking, crazing or other deterioration when viewed with the unaided eye from a distance of 300 +/- 10mm at 23 +/- 2 C. A slight uniform loss of gloss or chalking will be allowed provided an accept
15、able appearance can be achieved by washing and/or polishing with Ford car polish (auto wax) after outdoor exposure, with permission of the affected Product Development Materials Activity. All initial approvals will be based on the preliminary Weatherometer exposure, pending Florida and Arizona expos
16、ure results for final approval. 3.6.1 Xenon Arc Weatherometer Rating 3 min (SAE J1960, 2500 kJ/m2exposure min, A part, part section or surrogate part if possible, otherwise a test plaque. Plaque size: 60 x 60 min, 2.0+/- 0.1 mm thick, smooth surface, low gloss injection molded specimen) 3.6.2 12 mon
17、ths Florida Rating 3 4 12 months Arizona (SAE J 1976, 5 south, direct weathering inland. A part, part section or surrogate part if possible, otherwise a test plaque. Plaque size: 60 x 60 min, 2.0 +/- 0.1 mm thick, smooth surface, low gloss injection molded specimen) 3.6.3 24 months Florida Rating 3
18、24 months Arizona (SAE J 1976, 5 south, direct weathering inland. A part, part section or surrogate part if possible, otherwise a test plaque. Plaque size: 60 x 60 min, 2.0 +/- 0.1 mm thick, smooth surface, low gloss injection molded specimen) 5. GENERAL INFORMATION The information given below is pr
19、ovided for clarification and assistance in meeting the requirements of this specification. 5.1 COEFFICIENT OF LINEAR THERMAL EXPANSION 2.5-5/ C (ASTM D 696) ENGINEERING MATERIAL SPECIFICATIONWSS-M4D973-A Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 4 of 6 5.2 MO
20、LD 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 0.4% 5.2.2 Post Shrinkage (Separate specimens required for each test) * After 48 h at 80 C 0.06 0.13% * After 30 min. at 120 C 0.06 0.14% 5.3 WATER ABSORPTION 2.2%
21、 (ISO 62, 24 h/ASTM D 570, 24 h, 50 +/- 1 mm diameter, 3.2 +/- 0.2 mm thick specimen) 5.4 IMPACT STRENGTH, IZOD, min (ISO 180, Method A/ASTM D 256, Method A, 63.5 x 10 x 4.0 +/- 0.2 mm specimen, 10 specimen minimum) 5.4.1 After Moisture Conditioning 16 kJ/m2The notched specimens shall be immersed fo
22、r 48 h in distilled water at 50 +/- 1 C and subsequently conditioned for 1 h at 23 +/- 2 C and 50 +/- 5% relative humidity prior to test and tested under the same conditions within 1h. ENGINEERING MATERIAL SPECIFICATIONWSS-M4D973-A Printed copies are uncontrolled Copyright 2006, Ford Global Technolo
23、gies, LLC Page 5 of 6 5.5 RECYCLING CODE PA6/66 GF13 SHEAR MODULUS Temp (C) G (“MPa) Temp (C) G (“MPa) - 49.1 1797.5 105.4 399.3 - 44.9 1788.7 110.3 394.3 - 39.8 1783.2 115.2 388.8 - 34.8 1776.4 120.1 383.8 - 29.9 1771.3 125.0 378.5 - 24.7 1765.4 130.0 373.4 - 19.7 1760.9 135.0 368.1 - 14.6 1751.6 1
24、40.0 362.5 - 9.6 1742.2 145.0 357.0 - 4.3 1733.3 149.9 351.4 0.7 1715.9 155.0 345.2 5.6 1699.6 160.0 338.4 10.5 1681.2 165.0 331.4 15.4 1657.0 170.0 323.7 20.2 1624.9 175.0 316.0 25.2 1572.7 180.1 307.7 30.2 1488.3 185.0 299.1 35.0 1362.8 189.7 290.2 40.2 1188.0 194.6 280.2 45.1 996.8 199.6 268.7 50
25、.2 823.3 204.5 255.3 55.1 699.5 209.4 239.6 60.7 588.3 214.3 219.7 65.5 540.7 219.2 185.0 70.5 497.9 224.2 151.6 75.4 467.7 229.1 121.1 80.5 446.1 234.0 80.1 85.6 430.2 239.0 32.7 90.6 419.7 243.9 2.3 95.5 411.6 248.9 0.1 100.5 405.2 ENGINEERING MATERIAL SPECIFICATIONWSS-M4D973-A Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 6 of 6
