1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2010 01 12 N-STATUS No replacement named J. Crist, NA 2005 12 12 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.8, 3.9 & 4 1991 02 01 Released EP00E01089481000 M. Siewert Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC
2、 Page 1 of 5 POLYAMIDE (PA) 46, HEAT STABILIZED 30% GLASS WSK-M4D715-A2 FIBER REINFORCED MOLDING COMPOUND NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a glass fiber reinforced polyamide 46 molding compound prepared by polycondensation of diamino-butane and adi
3、pic acid and stabilized against hot air. 2. APPLICATION This specification was released originally for material used for plugs. NOTICE: This material absorbs and retains moisture. Part design and tolerances must accommodate changes in part dimensions and physical properties due to moisture absorptio
4、n or loss in the service/assembly environment. 3. REQUIREMENT Material specification 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 Pro
5、duction Materials (WSS-M99P1111-A). 3.3 CONDITIONING AND TEST CONDITIONS All 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 oth
6、erwise specified. All test values indicated herein are based on material and 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 th
7、e moisture content exceeds 0.2%, condition the material for a minimum 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 closed containers until immediately be
8、fore testing. 3.4 MOLDING COMPOUND 3.4.1 Glass Fiber Content 28 - 32% (ISO 3451/4, test temperature 600 +/-25 C, test portion 1 g) ENGINEERING MATERIAL SPECIFICATIONWSK-M4D715-A2 Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 2 of 5 3.4.2 Melt Temperature 287 - 29
9、5 C (ISO 1218, Method B/ASTM D 789, or DSC - ASTM E 794) 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 (T
10、ensile 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 1.37 - 1.43 g/cm3(ISO 1183, Method A/ASTM D 792, Method
11、 A1) 3.5.3 Tensile Strength at Max Load, min 170 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 8.5 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 Shear Modulus at 23 C
12、 1.52 - 2.54 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 minutes minimum). Additio
13、nally, a Shear Modulus vs. Temperature curve shall be plotted for -50 to +280 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, 80 x 10 x 4.0 +/-0.2 mm specimen, 1
14、0 specimens for each test) 3.5.6.1 At 23 +/- 2 C 8 kJ/m2ENGINEERING MATERIAL SPECIFICATIONWSK-M4D715-A2 Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 3 of 5 3.5.6.2 At -40 +/- 2 C 7 kJ/m2The test specimens must be conditioned for minimum of 6 h at the above speci
15、fied temperature prior to impact test. Low temperature testing shall be done within the cold box, if not possible, test can be conducted outside, but within 5 s. 3.5.7 Heat Deflection Temperature, min 280 C (ISO 75/ASTM D 648, 120 x 10 x 4.0 +/-0.2 mm specimen. At 1.82 MPa) 3.5.8 Heat Aging Performa
16、nce (ISO 188/ASTM D 573, 150 +/- 50 air changes/h, 1000 h at 190 +/- 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 determination) 3.5.8.1 Impact Strength, Izod Change
17、 +/- 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 1756, 3 h at 100 C heating, 21 C coolin
18、g plate, post test conditioning 1 h and 16 h) Fog Number, min 90 Formation of clear film, droplets or crystals is cause for rejection. 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specification. 5.1 COEFFICIENT OF
19、 LINEAR THERMAL EXPANSION 1.7 - 2.5-5/ C (ASTM D 696) 5.2 MOLD SHRINKAGE (ISO 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 - 1.5% ENGINEERING MATERIAL SPECIFICATIONWSK-M4D715-A2 Printed copies are uncontrolled Copyright 2010
20、, Ford Global Technologies, LLC Page 4 of 5 5.2.2 Post Shrinkage (Separate specimens required for each test) After 48 h at 80 C 0.01 - 0.02% After 30 minutes at 120 C 0.01 - 0.03% 5.3 WATER ABSORPTION 1.3 - 1.8% (ISO 62, 24 h/ASTM D 570, 24 h, 50 +/- 1 mm diameter, 3.2 +/- 0.2 mm thick specimen) 5.4
21、 IMPACT STRENGTH, IZOD, min (ISO 180, Method A/ASTM D 256, Method A, 80 x 10 x 4.0 +/- 0.2 mm specimen, 10 specimens minimum) 5.4.1 After Moisture Conditioning 15 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. ENGINEERING MATERIAL SPECIFICATIONWSK-M4D715-A2 Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 5 of 5
