1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2010 01 22 N-STATUS No replacement named J. Crist, NA 2006 05 18 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.8, 3.9 Fixed numbering in 3.4 1992 04 16 Released DF00E10022660211 L.P. Rumao Printed copies are uncontrolled Copyright 2010, Ford Globa
2、l Technologies, LLC Page 1 of 5 POLYAMIDE 46 (PA46), HEAT STABILIZED WSF-M4D846-A 40% GLASS FIBER REINFORCED MOLDING COMPOUND NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a glass fiber reinforced polyamide 46 molding compound prepared by polycondensation of di
3、aminobutane and adipic acid. 2. APPLICATION This specification was released originally for material used for starter solenoid heat shield. NOTICE: This material absorbs and retains moisture. Part design and tolerances must accommodate changes in part dimensions and physical properties due to moistur
4、e absorption or loss in the service/assembly environment. 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 CONDITIONING AND TEST CONDITIONS All te
5、st values indicated herein are based on material and specimens with moisture content not exceeding 0.2% (test according 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 excee
6、ds 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. Individual specimens shall not be removed from closed containers until immediately before testing. 3.4 MOLDIN
7、G COMPOUND 3.4.1 Glass Fiber Content 38 - 42% (ISO 3451/4, test temperature 600 +/- 25 C, test portion 1 g) 3.4.2 Melt Temperature 287 - 295 C (ISO 1218, Method B/ASTM D 789 or DSC - ASTM E 794) ENGINEERING MATERIAL SPECIFICATIONWSF-M4D846-APrinted copies are uncontrolled Copyright 2010, Ford Global
8、 Technologies, 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. 1
9、20 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 1.49 - 1.54 g/cm (ISO 1183, Method A/ASTM D 792, Method A1) 3.5.3 Tensile Strengt
10、h at Max Load, min 200 MPa (ISO R 527/ASTM D 638M, 150 min x 10 x 4.0 +/- 0.2 mm specimen, 5 mm/min test speed) 3.5.4 Flexural Modulus, min 10.0 GPa (ISO 178/ASTM D 790M, Method I, Procedure A, 80 x 10 x 4.0 +/- 0.2 mm specimen, 2 mm/min test speed, 64 mm support span, the radius of the loading nose
11、 5.0 +/- 0.1 mm and of the supports 2.0 +/- 0.2 mm) 3.5.5 Shear Modulus at 23 C 1.60 - 2.70 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
12、 35-40 mm. Soak time at each temperature interval - 3 minutes minimum) Additionally, a Shear Modulus vs. Temperature curve shall be plotted for -50 to +280 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, mi
13、n (ISO 180, Method A/ASTM D 256, Method A, 80 x 10 x 4.0 +/- 0.2 mm specimen, 10 specimens for each test) 3.5.6.1 At 23 +/- 2 C 9 kJ/m 3.5.6.2 At -40 +/- 2 C 8 kJ/mThe test specimens must be conditioned for minimum of 6 h at the above specified temperature prior to impact test. Low temperature testi
14、ng shall be done within the cold box, if not possible, test can be conducted outside, but within 5 s. ENGINEERING MATERIAL SPECIFICATIONWSF-M4D846-APrinted copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 3 of 5 3.5.7 Heat Deflection Temperature, min (ISO 75/ASTM D 648, 120
15、 x 10 x 4.0 +/- 0.2 mm specimen, at standard deflection of 0.32 +/- 0.01 mm) 3.5.7.1 At 1.80 MPa 280 C 3.5.7.2 At 0.45 MPa 280 C 3.5.8 Heat Aging Performance (ISO 188/ASTM D 573, 150 +/- 50 air changes/h, 1000 h at 160 +/- 2 C. After heat aging test specimens are to be conditioned in a desiccator fo
16、r 3 - 5 h at 23 +/- 2 C. Unaged property values shall be determined at the time of the aged properties determination) 3.5.8.1 Impact Strength, Izod Change +/- 15% (Test Method per para 3.5.6.1, specimens to be notched before heat aging) 3.6 FLAMMABILITY (ISO 3795) Burn Rate, max 100 mm/minute The sp
17、ecimen size required for material approval is 355 x 100 x 1.0 +/- 0.1 mm with a smooth surface. 3.7 FOGGING (FLTM BO 116-03) Fog Number, min 90 Formation of excessive amounts of clear film or droplets is cause for rejection. 5. GENERAL INFORMATION The information given below is provided for clarific
18、ation and assistance in meeting the requirements of this specification. 5.1 COEFFICIENT OF LINEAR THERMAL EXPANSION 1.7 - 2.5-5/ 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 +/- 2 C 0.3 - 1.5% 5.
19、2.2 Post Shrinkage (Separate specimens required for each test) . After 48 h at 80 C 0.01 - 0.02% . After 30 min at 120 C 0.02 - 0.03% ENGINEERING MATERIAL SPECIFICATIONWSF-M4D846-APrinted copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 4 of 5 5.3 WATER ABSORPTION 1.3 - 1.8
20、% (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, 80 x 10 x 4.0 +/- 0.2 mm specimen, 10 specimens minimum) 5.4.1 After Moisture Conditioning 15 kJ/m The notched specimens shall be immersed fo
21、r 48 h in distilled water at 50 +/- 1 C and subsequently conditioned for 1 h at 23 +/- 2 C and 50 +/0 5% relative humidity prior to test and tested under the same conditions within 1 h. 5.5 RECYCLING CODE SAE or PA46-GF40 PA46-GF40 OPTIONAL ENGINEERING MATERIAL SPECIFICATIONWSF-M4D846-APrinted copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 5 of 5
