1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2009 09 22 Revised See Summary of Revisions J. Souza, SA 2006 12 06 Revised Inserted 3.8.3, Revised 3.8, 3.8.1, 3.8.2 C. Leslie 1990 05 02 Released EP00E01031535000 M. Siewert Printed copies are uncontrolled Copyright 2009 Ford Global Technolo
2、gies, LLC Page 1 of 4 POLYAMIDE (PA) 66, HEAT STABILIZED, 30% GLASS WSK-M4D642-A2 FIBER REINFORCED MOLDING COMPOUND, INTERIOR 1. SCOPE The material defined by this specification is a heat stabilized glass fiber reinforced polyamide 66 molding compound UV stabilized for interior use. 2. APPLICATION T
3、his specification was released originally for material used for interior functional automotive applications. 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 se
4、rvice/assembly environment. 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
5、(WSS-M99P1111-A). 3.3 CONDITIONING AND TEST CONDITIONS All test values indicated herein are based on material conditioned in a controlled atmosphere of 23 +/- 2 C and 50 +/- 5% relative humidity for not less than 24 h prior to testing and tested under the same conditions unless otherwise specified.
6、All test materials immediately after processing have to be sealed in containers that are impermeable to water vapor. If the moisture content exceeds 0.2%, condition the material for a minimum of 16 h at 40 - 50 C at a reduced pressure below 133 Pa. Conduct tests in a controlled atmosphere of 23 +/-
7、2 C and 50 +/- 5% relative humidity. Individual specimens shall not be removed from closed containers until immediately before testing. 3.4 MOLDING COMPOUND 3.4.1 Glass Fiber Content 27.5 - 32.5% (ISO 3451/4, test temperature 600 +/- 25 C, test portion 1 g) 3.4.2 Melt Temperature 250 - 265 C (ISO 12
8、18, Method B/ASTM D 789) ENGINEERING MATERIAL SPECIFICATIONWSK-M4D642-A2 Printed copies are uncontrolled Copyright 2009, Ford Global Technologies, LLC Page 2 of 4 3.5 MOLDED TEST SPECIMEN 3.5.1 Preparation of Test Specimens Unless otherwise specified all tests shall be carried out on injection molde
9、d one-end gated test specimens. The following dimensions are required: A. 150 min x 10 x 4.0 +/- 0.2 mm (Tensile Bar, ISO 3167) 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 accordi
10、ng to ISO 294. No annealing allowed. 3.5.2 Density 1.34 - 1.40 g/cm3(ISO 1183, Method A/ASTM D 792, Method A1) 3.5.3 Tensile Strength at Max Load, min 150 MPa (ISO R 527/ASTM D 638M, 150 x 10 x 4.0 +/- 0.2 mm specimen, 5 mm/minute test speed) 3.5.4 Flexural Modulus, min 7.5 GPa (ISO 178/ASTM D 790M,
11、 Method I, Procedure A, 80 x 10 x 4.0 +/- 0.2 mm specimen, 64 mm support span) 3.5.6 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 specimens for each test) 3.5.6.1 At 23 +/- 2 C 6 kJ/m23.5.6.2 At -40 +/- 2 C 5 kJ/m2The test specimens must
12、 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. 3.5.7 Heat Deflection Temperature, min (ISO 75/ASTM D 648, 120 x 10 x 4.0 +/- 0.2 mm
13、specimen) 3.5.7.1 At 1.82 MPa 235 C 3.5.7.2 At 0.45 MPa 245 C 3.5.8 Heat Aging Performance (ISO 188/ASTM D 573, 150 +/- 50 air changes/h, 1000 h at 140 +/- 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
14、 at the time of the aged properties determination) ENGINEERING MATERIAL SPECIFICATIONWSK-M4D642-A2 Printed copies are uncontrolled Copyright 2009, Ford Global Technologies, LLC Page 3 of 4 3.5.8.1 Impact Strength, Izod Change +/- 25% (Test Method per para 3.5.6.1, specimens to be notched before heat
15、 aging) 3.6 FLAMMABILITY (ISO 3795) Burn Rate, max 100 mm/minute The specimen size required for material approval is 355 x 100 x 1.0 +/- 0.1 mm with a smooth surface. 3.7 FOGGING (SAE J1756, 3 h at 100 C heating, 21 C cooling plate, post test conditioning 1 h and 16 h) Fog Number, min 70 Formation o
16、f clear film, droplets or crystals is cause for rejection. 3.8 WEATHERING RESISTANCE After exposure in accordance with 3.8.1, 3.8.2 and 3.8.3 the material shall show no color change in excess of specified AATCC rating (AATCC Gray Scale for Evaluating Change in Color, 10 step). In addition, there sha
17、ll be no cracking, crazing or other deterioration. A slight loss of gloss or chalking will be allowed provided an acceptable appearance can be achieved by washing with mild detergents and water (ratio 5:95 by volume). All initial approvals will be based on the preliminary weatherometer exposure (par
18、a 3.8.1), pending Florida exposure results for final approval - Not required for North America. 3.8.1 Xenon Arc Weatherometer - Rating 4 Required Worldwide except North America (SAE J1885, 601.6 kJ/m2exposure minimum, specimen size: 150 x 100 mm minimum, 3.2 +/- 0.2 mm thick, molded in smooth polish
19、ed mold) 3.8.2 12 months Florida - Rating 4 Not required for North America (FLTM BI 160-01, 5 south, under glass, specimen size: 150 x 100 mm, minimum, 3.2 +/- 0.2 mm thick, molded in smooth polished mold) 3.8.3 Filtered Xenon Arc Weatherometer Rating 4 Required for North America (SAE J1885 modified
20、 (FLTM BO 116-01), 1203.2 kJ/m2exposure min, specimen size: 150 x 100 mm min, 3.2 +/- 0.2 mm thick, molded in smooth polished mold) ENGINEERING MATERIAL SPECIFICATIONWSK-M4D642-A2 Printed copies are uncontrolled Copyright 2009, Ford Global Technologies, LLC Page 4 of 4 5. GENERAL INFORMATION The inf
21、ormation given below is provided for clarification and assistance in meeting the requirements of this specification. 5.1 COEFFICIENT OF LINEAR THERMAL EXPANSION 2.2 - 3.3-5/C (ASTM D 696) 5.2 MOLD SHRINKAGE (ISO 2577, approx. 150 x 100 x 3.2 +/- 0.2 mm injection molded specimen) 5.2.1 Molding Shrink
22、age After 48 h at 23 +/- 2 C 0.2 - 1.5% 5.2.2 Post Shrinkage (Separate specimens required for each test) After 48 h at 80 C 0.01 - 0.04% After 30 minutes at 120 C 0.01 - 0.08% 5.3 WATER ABSORPTION 0.8 - 1.1% (ISO 62, 24 h/ASTM D 570, 24 h, 50 +/- 1 mm diameter, 3.2 +/- 0.2 mm thick specimen) 5.4 IMP
23、ACT STRENGTH, IZOD, min (ISO 180, Method A/ASTM D 256, Method A, 63.5 x 10 x 4.0 +/- 0.2 mm specimen, 10 specimens minimum) 5.4.1 After Moisture Conditioning 13 kJ/m2The notched specimens shall be immersed for 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 1 h. 5.5 RECYCLING CODE PA66 GF30 6. SUMMARY OF REVISIONS 2009 09 22 Remove Item 3.5.5 Shear Modulus at 23 C
