FORD-WSK-M4D648-A2-2006.pdf
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1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions 2006 12 06 Revised Inserted 3.8.3, Revised 3.8, 3.8.1, 3.8.2 C. Leslie 2005 10 17 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.9, 3.10 & 4 1990 05 02 Released EP00E01031535000 M. Siewert Printed copies are uncontrolled Copyright 2006, Ford Globa
2、l Technologies, LLC Page 1 of 5 POLYAMIDE (PA) 66, HEAT STABILIZED MOLDING WSK-M4D648-A2 COMPOUND, INTERIOR 1. SCOPE The material defined by this specification is a heat stabilized polyamide 66 molding compound UV stabilized for interior use. 2. APPLICATION This specification was released originally
3、 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 service/assembly environment. 3. REQUIREMEN
4、TS 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). 3.3 CONDITIONING AND TE
5、ST 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. All test materials immediately after proc
6、essing 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 +/- 2 C and 50 +/- 5% relative humidity. Indi
7、vidual specimens shall not be removed from closed containers until immediately before testing. 3.4 MOLDING COMPOUND 3.4.1 Melt Temperature 250 - 265 C (ISO 1218, Method B/ASTM D 789) -,-,- ENGINEERING MATERIAL SPECIFICATION WSK-M4D648-A2 Printed copies are uncontrolled Copyright 2006, Ford Global Te
8、chnologies, LLC Page 2 of 5 3.5 MOLDED TEST SPECIMEN 3.5.1 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 min x 10 x 4.0 +/- 0.2 mm (Tensile Bar, ISO 3167) B. 120
9、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. 3.5.2 Density 1.12 - 1.16 g/cm (ISO 1183, Method A/ASTM D 792, Method A1) 3.5.3 Tensile Strength a
10、t Yield, min 70 MPa (ISO R 527/ASTM D 638M, 150 x 10 x 4.0 +/- 0.2 mm specimen, 50 mm/minute test speed) 3.5.3.1 Elongation at Yield, min 2% (Test Method according to para 3.5.3) 3.5.4 Flexural Modulus, min 2.5 GPa (ISO 178/ASTM D 790M, Method I, Procedure A, 80 x 10 x 4.0 +/- 0.2 mm specimen, 64 mm
11、 support span) 3.5.5 Shear Modulus at 23 C 0.85 - 1.28 GPa (ASTM D 4065, forced constant amplitude, fixed frequency of 1 Hz +/- 15%, strain level below 1%. Specimen approx. 60 x 10 x 4.0 +/- 0.2 mm cut from the center of specimen A. Specimen length between clamps 35 - 40 mm. Soak time at each temper
12、ature interval - 3 minutes minimum) Additionally, a Shear Modulus vs. Temperature curve shall be plotted for -50 to +240 C temperature range, at 5 C minimum intervals. The plotted curve must be within tolerance range shown on page 5. 3.5.6 Impact Strength, Izod, min (ISO 180, Method A/ASTM D 256, Me
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