1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions 2011 03 24 N Status Replaced by WSS-M4D673-B1 V. Cerato, FoE 2007 02 14 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.8, 3.9 & 4 1989 09 29 Released SM/EQ035825 TP M. Siewert Printed copies are uncontrolled Copyright 2011, Ford Global Technologie
2、s, LLC Page 1 of 4 POLYAMIDE (PA) 66, HEAT STABILIZED 35% GLASS WSK-M4D673-A FIBER REINFORCED MOLDING COMPOUND NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a glass fiber reinforced, heat stabilized polyamide 66 molding compound. 2. APPLICATION This specificati
3、on was released originally for material used for the sleeve-transmission control selector. 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 env
4、ironment. 3. REQUIREMENTS 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 CONDITIONS AND TEST CONDITIONS All test values indicated herein are based on material a
5、nd specimens with moisture content not exceeding 0.2% (test according to ISO 960, Method B/ASTN 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%, conditions the material for a minimum of
6、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. Individual specimens shall not be removed from closed containers until immediately before testing. 3.4 MOLDING COMPOUND 3.4.1 Glass Fiber Content 32.5 37.5% (IS
7、O 3451/4, test temperature 600 +/- 25 C, test portion 1 g) 3.4.2 Melt Temperature 250 265 C (ISO 1218, Method B/ASTM D 789) 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. ENGINEE
8、RING MATERIAL SPECIFICATION WSK-M4D673-A Printed copies are uncontrolled Copyright 2011, Ford Global Technologies, LLC Page 2 of 4 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 c
9、ut 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 1.38 1.43 g/cm3 (ISO 1183, Method A/ASTM D 792, Method A1) 3.5.3 Tensile Strength at Max Load, min 180 MPa (ISO R 527/ASTM D 638M, 150 x 10 x 4.0 +/-
10、0.2 mm specimen, 5 mm/minute test speed) 3.5.4 Flexural Modulus, min 8.5 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 (ASTM D 4065, forced constant amplitude, Fixed frequency of 1 Hz +/- 15%, strain level below 1%
11、. Specimen approx. 60 x 10 x 4.0 +/- 0.2 mm cut from the center of specimen A) 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 4. 3.5.6 Impact Strength,
12、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 +/- C 9 kJ/m2 3.5.6.2 At -40 +/- 2 C 8 kJ/m2 The test specimen must be conditioned for minimum of 6 h at the above specified temperature prior to impact test. Low tempera
13、ture 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 specimen) 3.5.7.1 At 1.82 MPa 240 C 3.5.7.2 At 0.45 MPa 250 C 3.5.8 Heat Aging Performance (ISO 188/AST
14、M D 573, 150 +/- 50 air changes/h, 1000 h at 140 +/- 2 C. After heat aging test specimens are to be conditioned in a dessicator for 3 5 h at 23 +/- 2 C. Unaged property values shall be determined at the time of the age properties determination) ENGINEERING MATERIAL SPECIFICATION WSK-M4D673-A Printed
15、 copies are uncontrolled Copyright 2011, 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, specimen to be notched before heat aging) 3.6 FLAMMABILITY (ISO 3795) Burn Rate, max 100 mm/minute The specimen size required for material ap
16、proval is 355 x 100 x 1.0 +/- 0.1 mm with a smooth surface. 3.7 FOGGING (FLTM BO 116-3) Fog Number, min TBD Formation of excessive amounts of clear film or droplets is cause for rejection. 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the
17、requirements of this specification. 5.1 COEFFICIENT OF LINEAR THERMAL EXPANSION 1.8 2.6-5/ 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 Shrinkage After 48 h at 23 +/- C 0.2 1.5% 5.2.2 Post Shrinkage (Separate specimens requi
18、red for each test) After 48 h at 23 +/- 2 C 0.01 0.05% 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 +/- 0.2mm 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.
19、2 mm specimen, 10 specimens minimum) 5.4.1 After Moisture Conditioning 19 kJ/m2 The notched specimens shall be immersed for 48 h 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. ENGINEERING MATERIAL SPECIFICATION WSK-M4D673-A Printed copies are uncontrolled Copyright 2011, Ford Global Technologies, LLC Page 4 of 4
