1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2006 07 20 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.7, 3.8 Rev. 1, 3, 5 L. Hess 1997 02 20 Activated L. Hess Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 1 of 4 POLYAMIDE (PA) 66 HEAT STABILIZED, WSS-M4D9
2、51-A1 19% GLASS/MINERAL REINFORCED POLYAMIDE (PA) 66 HEAT STABILIZED, WSS-M4D951-A2 19% GLASS/MINERAL REINFORCED, 25% MIN POST CONSUMER CONTENT 1. SCOPE The materials defined by these specifications are a glass/mineral reinforced, heat stabilized polyamide 66 molding compound. 2. APPLICATION These s
3、pecifications were released originally for material used for air cleaner housing. 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.
4、 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 these specifications, identified by symbol (s), shall be met with data rep
5、resenting 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 or ASTM D 789). All test materials immediately after processing have to be sealed in containers that
6、 are impermeable to water vapor. If the moisture content exceeds 0.2%, condition the material for a min 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 clos
7、ed containers until immediately before testing. 3.4 MOLDING COMPOUND A1 A2 (s) 3.4.1 Filler Content, % 17 21 17 - 21 (ISO 3451-1 or ASTM D 5630) (s) 3.4.2 Melt Temperature, C, min 259 265 259 - 265 (ISO 3146, Method C) ENGINEERING MATERIAL SPECIFICATIONWSS-M4D951-A1/A2Printed copies are uncontrolled
8、 Copyright 2006, Ford Global Technologies, LLC Page 2 of 4 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 min x 10 x 4.0 +/- 0.2 mm
9、ISO 3167, Type A) B. 60 x 60 x 2.0 +/- 0.1 mm (ISO/DIS 294-3) C. 355 x 100 x 2.max mm (ISO 3795) Test specimen A, B, and C shall be molded using molding conditions defined in ISO 1874-2. Specimens with shorter dimensions shall be cut from the center of the specimen. No annealing allowed. A1 A2 3.5.
10、2 Density, g/cm3 1.24 - 1.29 1.21 - 1.29 (ISO 1183, Method A) (s) 3.5.3 Tensile Strength at Break, min 73 MPa 73 MPa (ISO 527-1 and ISO 527-2, Specimen A) (s) 3.5.4 Flexural Modulus, min 3.3 GPa 3.3 GPa (ISO 178, 80 x 10 x 4.0 specimen use center section of specimen A, 2 mm/minute test speed, 64 mm
11、support span) A1 & A2 3.5.5 Shear Modulus at 23 C 1440 MPa/GPa (ASTM D 5279, forced constant amplitude, fixed frequency of 1 Hz +/- 15%, strain level below 1%. Specimen approximately 60 x 10 x 4.0 cut from the center of specimen A. Specimen length between clamps 35 - 40 mm. Soak time at each tempera
12、ture interval, 3 minutes min) Additionally, a shear modulus vs. temperature curve shall be plotted for -50 to +240 C temperature range, at 5 C min intervals. The plotted curve must be within tolerance range granted on the original material approval and it shall constitute the reference standard for
13、materials supplied 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) (s) 3.5.6.1 At 23 +/
14、 2 C 2.3 kJ/m23.5.6.2 At -40 +/- 1 C 1.4 kJ/m2ENGINEERING MATERIAL SPECIFICATIONWSS-M4D951-A1/A2Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 3 of 4 (s) 3.5.7 Heat Deflection Temperature, min 65 C (ISO 75-1 and ISO 75-2, 80 x 10 x 4.0 mm specimen use center sect
15、ion of specimenA, flatwise, 0.32 - 0.36 mm deflection. At 1.80 MPa) All specimens dry as molded. If not tested immediately after molding, specimens must be stored in a sealed, moisture-proof container filled with silica gel. 3.6 FLAMMABILITY (ISO 3795/SAE J369) Burn Rate, max 100 mm/minute The speci
16、men size required for material approval is 355 x 100 x 2.0 mm max. 3.7.1 Regrind 15% max of regrind produced from molded parts is acceptable, providing all requirements of this specification are met. 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in m
17、eeting the requirements of these specifications. 5.1 COEFFICIENT OF LINEAR THERMAL EXPANSION (ASTM E 831 TMA, temperature range +/- 30 C) A1 A2 Flow 5.95 5.05-5/ C Across Flow 7.12 7.59-5/ 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 Shrinkag
18、e . After 48 h at 23 +/- 2 C Flow 1.29 1.10 Across Flow 1.13 1.07 5.2.2 Post Shrinkage (Separate specimen required for each test) . After 48 h at 80 C Flow 0.21 0.13 Across Flow 0.18 0.12 . After 30 minutes at 120 C Flow 0.16 0.18 Across Flow 0.16 0.15 5.5 MATERIAL IDENTIFICATION FOR RECYCLING PURPOSES PA66 (GF+M) 19 ENGINEERING MATERIAL SPECIFICATIONWSS-M4D951-A1/A2Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 4 of 4
