1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2006 05 02 N-STATUS Replaced by WSK-M4D642-A2 A. Reaume/M. Masserant 2005 10 28 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.9, 3.10 & 4 1999 08 12 Activated M. Masserant Printed copies are uncontrolled Copyright 2006, Ford Global Technologi
2、es, LLC Page 1 of 5 POLYAMIDE (PA) 66, HEAT STABILIZED 43% GLASS WSS-M4D668-A2 FIBER REINFORCED, INTERIOR 25% MINIMUM POST CONSUMER AND/OR INDUSTRIAL RECYCLATE CONTENT NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a glass fiber reinforced, heat stabilized polya
3、mide 66 molding compound, and it contains a minimum of 25% recycled content from post consumer and/or post industrial sources. 2. APPLICATION This specification was released originally for material used for the vent window handles. NOTICE: This material absorbs and retains moisture. Part design and
4、tolerances must accommodate changes in part dimensions and physical properties due to moisture absorption or loss in the service/assembly environment. 3. REQUIREMENTS Material specification requirements are to be used for initial qualification of materials. 3.0 STANDARD REQUIREMENTS FOR PRODUCTION M
5、ATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.4 MOLDING COMPOUND 3.4.1 Glass 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 1
6、218, Method B/ASTM D 789) 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: ENGINEERING MATERIAL SPECIFICATIONWSS-M4D668-A2 Printed copies are
7、 uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 2 of 5 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 Specimens with shorter dimensions shall be cut from the center portion of the test specimen A and/or B. The specimens shall be prepared accord
8、ing 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 638M, 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
9、 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 1.9 - 3.2 GPa (ASTM D 4065, forced constant amplitude, fixed frequency of 1 Hz +/- 15%, strain level below 1%. Specimen approximately 60 x 10 x 4.0 +/- 0.2 mm cut from the center of specimen A
10、) 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 shown on page 5. 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 spe
11、cimen, 10 specimens for each test) 3.5.6.1 At 23 +/- 2 C 12 kJ/m23.5.6.2 At -40 +/- 2 C 10 kJ/m2The test specimens must be conditioned for min of 6 h at the above specified temperature prior to impact test. Low temperature testing shall be done within the cold box. If not possible, test can be condu
12、cted 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 250 C 3.5.7.2 At 0.45 MPa 253 C ENGINEERING MATERIAL SPECIFICATIONWSS-M4D668-A2 Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, L
13、LC Page 3 of 5 3.5.8 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 determinati
14、on) 3.5.8.1 Impact Strength, 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 specimen size required for material approval is 355 x 100 x 1.0 +/- 0.1 mm with a smooth surface. 3.7 FOGGING (SAE J
15、1756, 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 film, droplets or crystals is cause for rejection. 3.8 WEATHERING RESISTANCE After exposure in accordance with para 3.8.1 and 3.8.2 the material shall show no fading or color ch
16、ange in excess of specified Gray Scale rating (AATCC Evaluation Procedure 1/ISO 104-A02). In addition, there shall be no cracking, crazing or other deterioration. A slight loss of gloss or chalking will be allowed provided an acceptable appearance can be achieved by washing with mild detergents and
17、water (ratio 5:95 by volume), or equivalent, after the Florida exposure. All initial approvals will be based on the preliminary Weatherometer exposure, pending Florida exposure results for final approval. 3.8.1 Xenon Arc Weatherometer Rating 4 (SAE J1885, 601 kJ/m2exposure min, specimen size: 150 x
18、100 mm min, 3.2 +/- 0.2 mm thick, molded in smooth polished mold) ENGINEERING MATERIAL SPECIFICATIONWSS-M4D668-A2 Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 4 of 5 3.8.2 12 months Florida Rating 4 (FLTM BI 160-01, 5 south, under glass*, specimen size: 150 x 10
19、0 mm, min 3.2 +/- 0.2 mm thick, molded in smooth polished mold) *PPG Herculite K, tempered safety glass, 3 mm thick. 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specification. 5.1 COEFFICIENT OF LINEAR THERMAL EX
20、PANSION 4.0 - 5.0-5/ C (ASTM D 696) 5.2 MOLD SHRINKAGE (ISO 2577, approximately 150 x 100 x 3.2 +/- 0.2 mm injection molded specimen) 5.2.1 Molding Shrinkage . After 48 h at 23 +/- 2 C 0.2 - 1.2% 5.2.2 Post Shrinkage (Separate specimens required for each test) . After 48 h at 80 C 0.01 - 0.05% . Aft
21、er 30 minutes 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 +/- 1 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 min) 5.4.1 After Moisture
22、 Conditioning 20 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. 5.5 MATERIAL IDENTIFICATION FOR RECYCLING PURPOSES PA66-GF43 ENGINEERING MATERIAL SPECIFICATIONWSS-M4D668-A2 Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 5 of 5
