1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2006 05 02 N-STATUS Replaced by WSK-M4D666-A; Inserted 3.0; Deleted 3.1, 3.3, 3.9, 3.10 & 4A. Reaume/M. Masserant 1995 11 11 Preliminary K. Gerhards Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 1 of 4 POLY
2、AMIDE 66 (PA66), HEAT STABILIZED, WSS-M4D706-A3 IMPACT MODIFIED, MOLDING COMPOUND NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a heat stabilized and impact modified type 66 polyamide molding compound. 2. APPLICATION This specification was released originally f
3、or material used for corrogated tube clip. 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 3.0 STANDARD REQUIREME
4、NTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Standard Requirements For Production Materials (WSS-M99P1111-A). 3.1.1 All requirements of this specification, identified by symbol (s), shall be met with data representing 3 sigma values. 3.4 MOLDING COMPOUND (s)
5、 3.4.1 Melt Temperature, min 254 - 264 C (ISO 3146, Method C, 10 C/min heating rate) 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
6、minimum x 10 x 4.0 +/- 0.2 mm (ISO 3167, Type 1A) B. 60 x 60 x 2.0 +/- 0.1 mm (ISO/DIS 294-3) C. 355 x 100 x 1.0 +/-0.1 mm (ISO 3795) Test specimen A shall be molded using molding conditions defined in ISO/DIS 1874-2. Specimens with shorter dimensions shall be cut from the center of the specimen A.
7、No annealing allowed. 3.5.2 Density 1.10 - 1.14 g/cm3(ISO 1183, Method A) ENGINEERING MATERIAL SPECIFICATIONWSS-M4D706-A3Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 2 of 4 (s) 3.5.3 Tensile Strength at Yield, min 60 MPa (ISO 527-1 & ISO 527-2, 150 minimum x 10
8、x 4.0 +/- 0.2 mm specimen, test speed: 50 mm/minute) (s) 3.5.3.1 Elongation at Yield, min 2.5% (Test Method according to para 3.5.3) (s) 3.5.4 Flexural Modulus, min 2.2 GPa (ISO 178, 80 x 10 x 4.0 +/- 0.2 mm specimen use center section of specimen A, 2 mm/min test speed, 64 mm support span) 3.5.5 Sh
9、ear Modulus at 23 C 648 - 972 MPa (ASTM D 5279, 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
10、minimum) Additionally, a shear modulus versus temperature curve shall be plotted for -50 to +200 C temperature range, at 5 C minimum intervals. The plotted curve must be within tolerance range granted on the original material approval and it shall constitute the reference standard for materials supp
11、lied to this specification and shall be kept on file at the designated material laboratory and be available on request. (s) 3.5.6 Impact Strength, Izod, min (ISO 180/1A, 80 x 10 x 4.0 +/- 0.2 mm specimen use center section of specimen A, 10 specimens for each test) 3.5.6.1 At 23 +/- 2 C 6.0 kJ/m23.5
12、.6.2 At -40 +/- 1 C 3.5 kJ/m23.5.6.3 At -20 +/- 2 C 4.0 kJ/m2The test specimen must be conditioned for minimum of 6 hours at the above specified temperature prior to impact test. Low temperature testing shall be done within the cold chamber, if not possible, test may be conducted outside, but within
13、 5 seconds. (s) 3.5.7 Heat Deflection Temperature, min tbd C (ISO 75-1 & ISO 75-2, 80 x 10 x 4.0 +/- 0.2 mm specimen (use center section of specimen A), flatwise, 0.34 +/- 0.1 mm deflection. At 1.80 MPa) 3.5.8 Heat Aging Performance (ISO 188, except 150 +/- 50 air changes/h, 1000 h at 130 +/- 2 C. A
14、fter 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 MATERIAL SPECIFICATIONWSS-M4D706-A3Printed copies are uncontrolled Copyright 2006, Ford Global Tech
15、nologies, LLC Page 3 of 4 3.5.8.1 Tensile Strength at Yield Change +/- 25% 3.5.8.2 Impact Strength, Izod Change +/- 25% (Test Method per para 3.5.6.1, specimens to be notched before heat aging) 3.6 IMPACT STRENGTH, MULTIAXIAL (ASTM D 3763, 100 mm diameter x 3.2 mm thick smooth surface injection mold
16、ed specimen. Impact velocity: 2.2 m/s for exterior, 6.6 m/s for interior applications. 3.6.1 At 23 +/- 2 C tbd J 3.6.2 At -40 +/- 2 C tbd J 3.6.3 At ( ) +/- 2 C tbd J 3.7 FOGGING (SAE J1756, 3 h at 100 C heating, 21 C cooling plate, post test conditioning 1 h) Fog Number, min 85 Formation of clear f
17、ilm, droplets or crystals is cause for rejection. 3.8 FLAMMABILITY (ISO 3795/SAE J369) Burn Rate, max 100 mm/minute The specimen size required for material approval is 355 x 100 x 1.0 +/- 0.1 mm (use specimen C) with a smooth surface. 5. GENERAL INFORMATION The information given below is provided fo
18、r clarification and assistance in meeting the requirements of this specification. 5.1 COEFFICIENT OF LINEAR THERMAL EXPANSION 9.0-5/ C (ASTM E 831 TMA, temperature range -30 to +30 C) 5.2 MOLD SHRINKAGE (ISO/DIS 294-3, 60 x 60 x 2.0 +/- 0.1 mm injection molded specimen) 5.2.1 Molding Shrinkage . Aft
19、er 48 h at 23 +/- 2 C 1.2 - 1.6% 5.2.2 Post Shrinkage (Separate specimens required for each test) . After 48 h at 80 C 0 - 0.1% . After 30 minutes at 120 C 0 - 0.2% ENGINEERING MATERIAL SPECIFICATIONWSS-M4D706-A3Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 4 of
20、4 5.3 WATER ABSORPTION 1.8% (ISO 62, 24 h immersion, 50 +/- 1 mm diameter, 3.2 +/- 0.2 mm thick specimen) 5.4 HEAT DEFLECTION TEMPERATURE 47 C (ISO 75-1 & ISO 75-2, 80 x 10 x 4.0 +/- 0.2 mm specimen use center section of specimen A, edgewise, 0.34 +/- 0.1 mm deflection. At 1.80 MPa) 5.5 MODULUS OF E
21、LASTICITY tbd GPa (ISO 527-1 & ISO 527-2, 150 minimum x 10 x 4.0 +/- 0.2 mm specimen, test speed: 1 mm/minute) 5.6 IMPACT STRENGTH, CHARPY (ISO 179/1eA, 80 x 10 x 4.0 +/- 0.2 mm specimen (use center section of specimen A), 10 specimens for each test) 5.6.1 At 23 +/- 2 C tbd kJ/m25.6.2 At -40 +/- 1 C
22、 tbd kJ/m25.6.3 At - ( ) +/- 2 C tbd kJ/m2The test specimen must be conditioned for minimum of 6 hours at the above specified temperature prior to impact test. Low temperature testing shall be done within the cold chamber, if not possible, test may be conducted outside, but within 5 seconds. 5.7 MATERIAL IDENTIFICATION FOR RECYCLING PURPOSES PA66
