FORD-WSK-M4D822-A-2006.pdf
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1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions 2006 03 31 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.8, 3.9 & 4 1991 08 01 Released EP00E01089487000 M. Siewert Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 1 of 5 POLYAMIDE 6 (PA6), HEAT STABILIZED WSK-M
2、4D822-A 40% GLASS FIBER/MINERAL REINFORCED MOLDING COMPOUND 1. SCOPE The material defined by this specification is a heat stabilized 15% glass fiber and 25% mineral reinforced polyamide 6 molding compound. 2. APPLICATION This specification was released originally for material used for engine cooling
3、 fan and fan shroud. 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. REQUIREMENT 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATE
4、RIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.3 CONDITIONING AND TEST CONDITIONS All test values indicated herein are based on material and specimens with moisture content not exceeding 0.2% (test according
5、 to ISO 960, Method B/ASTM D 789). 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
6、 a controlled atmosphere of 23 +/- 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/Mineral Content 38 - 42% (ISO 3451/4, test temperature 600 +/- 25 C, test portion 1 g) 3.4
7、.2 Melt Temperature 210 - 225 C (ISO 1218, Method B/ASTM D 789, or DSC - ASTM E 794) -,-,- ENGINEERING MATERIAL SPECIFICATION WSK-M4D822-A Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 2 of 5 3.5 MOLDED TEST SPECIMEN 3.5.1 Preparation of Test Specimens Unless oth
8、erwise 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 x 10 x 4.0 +/- 0.2 mm Specimens with shorter dimensions shall be cut from the center portion of the
9、 test specimen A and/or B. The specimens shall be prepared according to ISO 294. No annealing allowed. 3.5.2 Density 1.42 - 1.50 g/cm3 (ISO 1183, Method A/ASTM D 792, Method A1) 3.5.3 Tensile Strength at Max Load, min 100 MPa (ISO R 527/ASTM D 638M, 150 x 10 x 4.0 +/- 0.2 mm specimen, 5 mm/minute te
10、st speed) 3.5.4 Flexural Modulus, min 6 GPa (ISO 178/ASTM D 790M, Method I, Procedure A, 80 x 10 x 4.0 +/- 0.2 mm specimen, 64 mm support span) 3.5.5 Shear Modulus at 23 C 2.27 - 3.79 GPa (ASTM D 4065, forced constant amplitude, fixed frequency of 1 Hz +/- 15%, strain level below 1%. Specimen approx
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