1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2010 01 20 N-STATUS No replacement named J. Crist, NA 2006 06 27 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.8, 3.9 & 4 1994 03 31 Released NGA1E10370437003 A. Vallabhanath Printed copies are uncontrolled Copyright 2010, Ford Global Technologies
2、, LLC Page 1 of 5 POLYAMIDE 46 (PA46), HEAT STABILIZED WSF-M4D897-A 50% 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 diaminobutane an
3、d adipic acid. 2. APPLICATION This specification was released originally for material used for cruise control spool. 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 i
4、n 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). 3.1.1 All requirements of this specification, identified by symbo
5、l(s), shall be met with data representing 3 sigma values. 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 to ISO 960, Method B). All test materials immediately after processing have to
6、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. Individual specimen
7、s shall not be removed from closed containers until immediately before testing. 3.4 MOLDING COMPOUND (s) 3.4.1 Glass Fiber Content 48 - 52% (ISO 3451/4, test temperature, 600 +/- 25 C) (s) 3.4.2 Melt Temperature, min 285 - 295 C (ISO 3146, Method C, 10 C/min heating rate) ENGINEERING MATERIAL SPECIF
8、ICATIONWSF-M4D897-APrinted copies are uncontrolled Copyright 2010, Ford Global 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 dimensio
9、ns 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 according to ISO 294. No annealing allowed. 3.5.2 Density 1.5
10、7 - 1.67 g/cm (ISO 1183, Method A) (s) 3.5.3 Tensile Strength at Max Load, min 210 MPa (ISO R 527, 150 minimum x 10 x 4.0 +/- 0.2 mm specimen, 5 mm/min test speed) (s) 3.5.4 Flexural Modulus, min 10.5 GPa (ISO 178, 80 x 10 x 4.0 +/- 0.2 mm specimen, 2 mm/min test speed, 64 mm support span) 3.5.5 She
11、ar Modulus at 23 C 2.5 - 4.0 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 temperature interval - 3 minutes m
12、inimum) Additionally, a Shear Modulus versus 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. (s) 3.5.6 Impact Strength, Izod, min (ISO 180/1A, 80 x 10 x 4.0 +/- 0.2 mm specimen, 10 spe
13、cimens for each test) 3.5.6.1 At 23 +/- 2 C 9 kJ/m 3.5.6.2 At -40 +/- 1 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 testing shall be done within the cold box. ENGINEERING MATERIAL SPECIFICATIONWSF-M4D897-A
14、Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 3 of 5 (s) 3.5.7 Heat Deflection Temperature, min (ISO 75, 120 x 10 x 4.0 +/- 0.2 mm specimen, 0.32 +/- 0.01 mm deflection) 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, ex
15、cept 150 +/- 50 air changes/h, 1000 h at 160 +/- 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 at the time of the aged properties determination) 3.5.8.1 Impact Strength, Izod Change +/- 15% (Test Metho
16、d per para 3.5.6.1, specimens to be notched before heat aging) 3.6 FOGGING (FLTM BO 116-03, 3 h at 100 C) Fog Number, min 90 Formation of a clear film, droplets or crystals is cause for rejection. 3.7 FLAMMABILITY (ISO 3795) Burn Rate, max 100 mm/minute The specimen size required for material approv
17、al is 355 x 100 x 1.0 +/- 0.1 mm with a smooth surface. 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specification. 5.1 COEFFICIENT OF LINEAR THERMAL EXPANSION 1.6 - 2.4-5/ C (ASTM E 831 TMA, temperature range -30
18、 to +30 C) ENGINEERING MATERIAL SPECIFICATIONWSF-M4D897-APrinted copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 4 of 5 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 0.2 - 1.2%
19、 5.2.2 Post Shrinkage (Separate specimens required for each test) . After 48 h at 80 C 0.1 - 0.02% . After 30 min at 120 C 0.02 - 0.03% 5.3 WATER ABSORPTION 1.2 - 1.7% (ISO 62, 24 h immersion, 50 +/- 1 mm diameter, 3.2 +/- 0.2 mm thick specimen) 5.4 IMPACT STRENGTH, IZOD, min (ISO 180/1A, 80 x 10 x
20、4.0 +/- 0.2 mm specimen, 10 specimens minimum) 5.4.1 After Moisture Conditioning 15 kJ/m The 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 PA46-GF50 ENGINEERING MATERIAL SPECIFICATIONWSF-M4D897-APrinted copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 5 of 5
