1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2010 11 05 N-STATUS Replaced by SDS and USCAR requirements A. Pan, APA 2005 09 07 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.7, 3.8 & 4 1987 02 26 Released SM/EQ 5676TP H. Fuechtenhans Printed copies are uncontrolled Copyright 2010, Ford Global
2、 Technologies, LLC Page 1 of 4 POLYAMIDE (PA) 66, MOLDING COMPOUND SELF EXTINGUISHING (SE) WSK-M4D564-A NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a polyamide 66 molding compound containing flame retardant additives. 2. APPLICATION This specification was rel
3、eased originally for material used for loudspeaker connectors. 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. REQUIREMENTS 3.
4、0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part productions 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 moistu
5、re content not exceeding 0.2% (test according to ISO R 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
6、reduced pressure below 133 kPa. 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 Melting Point, min 250 C (ISO 1218, Method B/ASTM D 78
7、9) 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 x 10 x 4.0 +/- 0.2 mm (Tensile Bar, ISO 3167) B. 120 x 10 x 4.0 +/- 0.2 mm ENGINEE
8、RING MATERIAL SPECIFICATIONWSK-M4D564-A Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 2 of 4 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
9、 allowed. 3.5.2 Density 1.16 - 1.20 g/cm3(ISO R 1183, Method A/ASTM D 792, Method A1) 3.5.3 Tensile Strength at Yield, min 65 MPa (ISO R 527/ASTM D 638M, 150 x 10 x 4.0 +/- 0.2 mm specimen, 50 mm/min test speed) 3.5.3.1 Elongation at Break, min 2% (Test Method according to para 3.5.3) 3.5.4 Flexural
10、 Modulus, min 2.7 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 1143 - 1715 MPa (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.
11、2 mm cut from the center of specimen A.) Additionally, a Shear Modulus vs. Temperature curve shall be plotted for -50 to +245 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, Izod, min (ISO 180, Method A/ASTM D 25
12、6, 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 2 kJ/m23.5.6.2 At -40 +/- 2 C 2 kJ/m2The 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
13、 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 75 C 3.5.7.2 At 0.45 Mpa 200 C 3.5.8 Heat Aging Performance (ISO 188/ASTM D 573, 1000 h at 110 +/- 2 C. After
14、heat aging test specimens are to be conditioned in a desiccator for 3-5 h at 23 +/- 2 C) ENGINEERING MATERIAL SPECIFICATIONWSK-M4D564-A Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 3 of 4 3.5.8.1 Tensile Strength Change +/- 15% (Test Method per para 3.5.3) 3.5.8
15、.2 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 0 mm/minute (SE) The specimen size required for material approval is 355 x 100 x 0.5 +/- 0.1 mm with a smooth surface. 5. GENERAL INFORMATION T
16、he information given below is provided for clarification and assistance in meeting the requirements of this specification. 5.1 COEFFICIENT OF LINEAR THERMAL EXPANSION 9 - 12-5/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 Shr
17、inkage . After 48 h at 23 +/- 2 C 1.1 - 1.2% 5.2.2 Post Shrinkage (Separate specimens required for each test) . After 48 h at 80 C 0.2 - 0.3% . After 30 min at 120 C 0.2 - 0.4% 5.3 WATER ABSORPTION 1.3% (ISO 62, 24 h/ASTM D 570, 24 h, 50 +/- 1 mm diameter, 3.2 +/- 0.2 mm thick specimen) 5.4 IMPACT S
18、TRENGTH, 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 Conditioning 6.5 kJ/m2The 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-M4D564-A Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 4 of 4
