1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2007 04 19 Activated G. Kowalski/A. Reaume Printed copies are uncontrolled Copyright 2007, Ford Global Technologies, LLC Page 1 of 5 POLYAMIDE (PA) 66, 40% MINERAL REINFORCED MOLDING COMPOUND, WSS-M4D719-A3 HEAT STABILIZED, 25% POST CONSUMER C
2、ONTENT 1. SCOPE The materials defined by this specification is a mineral reinforced, heat stabilized polyamide 66 molding compound containing 25% post consumer re-cyclate. 2. APPLICATIONS This specification was released originally for material used for climate control blend doors. This material shou
3、ld be used when a dimensionally stable, chemically resistant, black engineering polymer is required. 2.1 LIMITATIONS 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 se
4、rvice/assembly environment. This material is manufactured using post consumer nylon, it should not be used in applications requiring color mastering. This material does not contain UV stabilizers, long term exposure to direct sunlight will cause chalking and loss of properties. 3. REQUIREMENTS 3.1 S
5、TANDARD 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 symbol (s), shall be met with data representing 3 sigma values
6、 using latest ISO test methods. 3.1.2 This specification is based on virgin material only. The use of in-house regrind is not allowed unless the part is validated during PV testing with the documented level of regrind noted on the part drawing. 3.2 MOLDING COMPOUND (s) 3.2.1 Melt Temperature 249 256
7、 C (ISO 3146 2ndHeat) The material shall be dried for 2 h minimum at 80C in a mechanical convection oven immediately preceding the test. (s) 3.2.2 Mineral Filler Content 37.5 42.8% (ISO 3451-4) ENGINEERING MATERIAL SPECIFICATIONWSS-M4D719-A3- Printed copies are uncontrolled Copyright 2007, Ford Glob
8、al Technologies, LLC Page 2 of 5 3.3 MOLDED TEST SPECIMEN 3.3.1 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 minimum x 10 x 4.0 +/- 0.2 mm (ISO 527-2, specimen t
9、ype 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 1874-2). Specimens with shorter dimensions shall be cut from the center of the specimen A. No annealing allowed. 3.3.2 Density 1.45 1.5
10、4 g/cm3(ISO 1183, Method A) (s) 3.3.3 Tensile Strength at Max Load, min 65 MPa (ISO 527-1 150 x 10 x 4 mm specimen A). Test speed shall be 5 mm/minute for all materials. Provide a curve of tensile stress versus strain using one specimen per lot at each of the following temperatures: -40 C, 23 C and
11、110 C. For ductile materials, the curve shall cover strain through yield point. 3.3.5 Impact Strength, Izod, notched (Initial Qualification), 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) 3.3.5.1 At 23 +/- 2 C 2.4 kJ/m23.3.5.2 At -40
12、 +/- 1 C 2.2 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. (s) 3.3.6 Tensile Modulus, min
13、5512 MPa (ISO 527-1 & ISO 527-2, 150 minimum x 10 x 4.0 +/- 0.2 mm specimen A test speed: 1mm/minute) ENGINEERING MATERIAL SPECIFICATIONWSS-M4D719-A3- Printed copies are uncontrolled Copyright 2007, Ford Global Technologies, LLC Page 3 of 5 (s) 3.3.7 Charpy, notched, min (ISO 179/1eA, 80 x 10 x 4.0
14、/- 0.2 mm specimen use center section of specimen A, 10 specimens 3.3.7.1 At 23 +/- 2 C 2.48 kJ/m23.3.7.2 At -40 +/- 2 C 0.79 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 c
15、old chamber, if not possible, test may be conducted outside, but within 5 seconds. 3.3.8 Heat Deflection Temperature, min 130 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) All specimens dry as molded. If
16、 not tested immediately after molding, specimens must be stored in a sealed, moisture-proof container filled with silica gel. 3.3.9 Heat Aging Performance (ISO 188, except 150 +/- 50 air changes/h, 1000 h at 110 +/- 2 C. After heat aging test specimens are to be conditioned in a desiccator for 3 - 5
17、 h at 23 +/- 2 C. Unaged property values shall be determined at the time of the aged properties determination) 3.3.9.1 Impact Strength, Izod Change +/- 25% (Test Method per para 3.3.5.1, specimens to be notched before heat aging) 3.4 SCRATCH RESISTANCE (FLTM BN 108-13, 1.0 +/- 0.1 mm steel ball at 7
18、0 N, 6.0 N, 4.5 N, 3.0 N and 2.0 N) Rating 2 required at 2.0 N Rating 2 (No visible whitening at any load) 3.5 ODOR, max Rating 2 (SAE J1351/FLTM BO 131-01) 3.6 FOGGING (SAE J1756, 3 h at 100 C heating, 21 C cooling plate, post test conditioning 1 h and 16 h) Fog Number, min 70 Formation of clear f
19、ilm, droplets or crystals is cause for rejection. 3.7 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. ENGINEERING MATERIAL SPECIFICATIONWSS-M4D719-A3- Printed copies a
20、re uncontrolled Copyright 2007, Ford Global Technologies, LLC Page 4 of 5 4. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specification. 4.1 COEFFICIENT OF LINEAR THERMAL EXPANSION (ISO 11359-2 TMA) Temperature range
21、 -30 - 40 C 3 - .6 -5mm/C 60 - 110 C 2 - 12 -5mm/C 4.2 MOLD SHRINKAGE (ISO 294-3 and 294-4, 60 x 60 x 2.0 +/- 0.1 mm injection molded specimen B) 4.2.1 Molding Shrinkage . After 48 h at 23 +/- 2 C Flow 1.00% X-Flow 1.25% 4.2.2 Post Shrinkage (Separate specimens required for each test) . After 48 h
22、at 80 C Flow 0.01% X-Flow 0.00% . After 30 minutes at 120 C Flow 0.14% X-Flow 0.14% 4.3 WATER ABSORPTION 0.68% (ISO 62, 24 h immersion, 50 +/- 1 mm diameter, 3.2 +/- 0.2 mm thick specimen) 4.4 HEAT DEFLECTION TEMPERATURE 221 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 0.45 MPa) 4.5 MATERIAL IDENTIFICATION FOR RECYCLING PURPOSES (ISO 1043 latest) SAE PA66-M40 ENGINEERING MATERIAL SPECIFICATIONWSS-M4D719-A3- Printed copies are uncontrolled Copyright 2007, Ford Global Technologies, LLC Page 5 of 5
