1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2006 05 04 N-STATUS Replaced by WSK-M4D596-A: Inserted 3.0; Deleted 3.1, 3.2, 3.8, 3.9 & 4 A. Reaume/M. Masserant 1989 08 31 Released SM/EQ7118 TP M. Siewert Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 1
2、of 4 POLYAMIDE (PA) 66, HEAT STABILIZED WSK-M4D668-A 43% GLASS FIBER REINFORCED 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 specification was released originally for m
3、aterial used for the throttle pedal. 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 test values indicated h
4、erein are based on material and specimens with moisture content not exceeding 0.2% (test according to ISO 960, Methods 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 t
5、he 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 MOLDING COMPOUND 3.4.1 Glass
6、 Fiber Content 41 46% (ISO 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 specifies all tests shall be carried out on injection molded one-end gate
7、d 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 ENGINEERING MATERIAL SPECIFICATIONWSK-M4D668-A Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 2 of 4 Specimens with short
8、er 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 1.47- 1.52 g/cm3(ISO 1183, Method A/ASTM D 792, Method A1) 3.5.3 Tensile Strength at Max Load, min 200 MPa (ISO R 527-ASTM D 6
9、38M, 150 x 10 x 4.0 +/- 0.2 mm Specimen, 5 mm/minute test speed) 3.5.4 Flexural Modulus, min 10 GPa (ISO 178/ASTM D 790M, Method I, Procedure A, 80 x 10 x 4.0 +/- 0.2mm Specimen, 64 mm support span) 3.5.5 Shear Modulus at 23 C 1.65 2.75 GPa (ASTM D 4065, forced constant Amplitude, fixed frequency of
10、 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) 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
11、on page 4. 3.5.6 Impact Strength, 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 +/- 2 C 12 kJ/m2 3.5.6.2 At -40 +/- 2 C 9 kJ/m2 The test specimens must be conditioned for minimum of 6 h at the above specified tempera
12、ture prior to impact test. Low temperature 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
13、8 Heat Aging Performance (ISO 188/ASTM D 573, 150 +/- 50 air changes/h, 1000 h at 140 +/- 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) ENGINEERING MATE
14、RIAL SPECIFICATIONWSK-M4D668-A Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 3 of 4 3.5.8.1 Impact Strenth, Izod Change +/- 25% (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
15、specimen size requires for material approval 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 clarif
16、ication and assistance in meeting the requirements of this specification. 5.1 COEFICIENT OF LINEAR THERMAL EXPANSION 2.0 3.0-5/ 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 80 C 0.01 0.05% After 30 mi
17、nutes at 120 C 0.01 - 0.08% 5.3 WATER ABSORPTION 0.6 1.1% (ISO 62, 24 h/ASTM D 570, 24 h 50 +/- mm diameter, 3.2 +/- 0.2 mm Thick specimen) 5.4 IMPACT STRENGTH, IZOD, min (ISO 180, Method A/ASTM D 256, Method A, 63.5 x 10 x 4.0 +/- 0.2 mm specimen, 10 specimens minimum) 5.4.1 After Moisture Conditio
18、ning 20 kJ/m2 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. ENGINEERING MATERIAL SPECIFICATIONWSK-M4D668-A Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 4 of 4
