1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2005 10 27 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.9, 3.10 & 4 2000 11 08 Revised Updated A. Cockman 1990 05 02 Released EP00E01031535000 M. Siewert Printed copies are uncontrolled Copyright 2005, Ford Global Technologies, LLC Page 1 of 5 PO
2、LYAMIDE (PA) 6, 15% GLASS FIBER REINFORCED WSK-M4D665-A2 MOLDING COMPOUND, INTERIOR 1. SCOPE The material defined by this specification is a glass fiber reinforced polyamide 6 molding compound UV stabilized for interior use. 2. APPLICATION This specification was released originally for material used
3、 for interior functional automotive applications. 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 Material specif
4、ication requirements are to be used for initial qualification of materials. 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). 3.3 CONDITIONING AND TEST CONDITIONS All
5、test values indicated herein are based on material conditioned in a controlled atmosphere of 23 +/- 2 C and 50 +/- 5% relative humidity for not less than 24 h prior to testing and tested under the same conditions unless otherwise specified. All test values indicated herein are based on material and
6、specimens with moisture content not exceeding 0.2% (test according to ISO 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
7、 at 40 - 50 C at a reduced pressure below 133 Pa. 3.4 MOLDING COMPOUND 3.4.1 Glass Fiber Content 12.5 - 17.5% (ISO 3451/4, test temperature 600 +/- 25 C, test portion 1 g) 3.4.2 Melt Temperature 215 - 225 C (ISO 1218, Method B/ASTM D 789) ENGINEERING MATERIAL SPECIFICATIONWSK-M4D665-A2Printed copies
8、 are uncontrolled Copyright 2005, Ford Global Technologies, LLC Page 2 of 5 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
9、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 according to ISO 294. No annealing allowed. 3.5.2 Density 1.20 - 1.28 g/cm (ISO 1183, Method A
10、/ASTM D 792, Method A1) 3.5.3 Tensile Strength at Max Load, min 100 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 4.5 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 Sh
11、ear Modulus at 23 C 1.09 - 1.82 GPa (ASTM D 4065, forced constant amplitude, fixed frequency of 1 Hz +/- 15%, strain level below 1%. Specimen approx. 60 x 10 x 4.0 +/- 0.2 mm cut from the center of specimen A. Specimen length between clamps 35-40 mm. Soak time at each temperature interval - 3 minute
12、s minimum) Additionally, a Shear Modulus vs. Temperature curve shall be plotted for -50 to +210 C temperature range, at 5 C minimum 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 +
13、/-0.2 mm specimen, 10 specimens for each test) 3.5.6.1 At 23 +/- 2 C 3.5 kJ/m 3.5.6.2 At -40 +/- 2 C 3.0 kJ/m The 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 cold box. If not possible,
14、 test can be conducted outside, but within 5 s. ENGINEERING MATERIAL SPECIFICATIONWSK-M4D665-A2Printed copies are uncontrolled Copyright 2005, Ford Global Technologies, LLC Page 3 of 5 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
15、180 C 3.5.7.2 At 0.45 MPa 200 C 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 prope
16、rties determination) 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
17、.7 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 film, droplets or crystals is cause for rejection. 3.8 WEATHERING RESISTANCE After exposure in accordance with 3.8.1 and 3.8.2, the material shall show no color
18、 change in excess of specified AATCC rating (AATCC Gray Scale for Evaluating Change in Color, 10 step). 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 d
19、etergents and water (ratio 5:95 by volume). All initial approvals will be based on the preliminary weatherometer exposure (para 3.8.1), pending Florida exposure results for final approval. 3.8.1 Xenon Arc Weatherometer Rating 4 (SAE J1885, 313.5 kJ/m2exposure minimum, specimen size: 150 x 100 mm min
20、imum, 3.2 +/- 0.2 mm thick, molded in smooth polished mold) ENGINEERING MATERIAL SPECIFICATIONWSK-M4D665-A2Printed copies are uncontrolled Copyright 2005, 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 100 mm, mi
21、nimum, 3.2 +/- 0.2 mm thick, molded in smooth polished mold) 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 EXPANSION 3 - 6-5/ C (ASTM D 696) 5.2 MOLD SHRINKAGE (ISO
22、2577, approx. 150 x 100 x 3.2 +/- 0.2 mm injection molded specimen) 5.2.1 Molding Shrinkage After 48 h at 23 +/- 2 C 0.3 - 1.0% 5.2.2 Post Shrinkage (Separate specimens required for each test) After 48 h at 80 C 0.01 - 0.12% After 30 minutes at 120 C 0.01 - 0.14% 5.3 WATER ABSORPTION 1.2 - 1.7% (ISO
23、 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 minimum) 5.4.1 After Moisture Conditioning 17 kJ/m The notched specimens shall be immersed for 48
24、 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-M4D665-A2Printed copies are uncontrolled Copyright 2005, Ford Global Technologies, LLC Page 5 of 5
