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1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions 2005 09 13 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.8, 3.9 & 4 2000 10 26 Revised Updated A. Cockman 1988 06 15 Released SM/EQ4331TP M. Siewert Printed copies are uncontrolled Copyright 2005, Ford Global Technologies, LLC Page 1 of 4 PO
2、LYAMIDE (PA) 66, HEAT STABILIZED 50% GLASS WSK-M4D596-A FIBER REINFORCED MOLDING COMPOUND 1. SCOPE The material defined by this specification is a heat stabilized glass fiber reinforced polyamide 66 molding compound. 2. APPLICATION This specification was released originally for material used for the
3、 cage of automatic transmission clutch. 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 specification re
4、quirements 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). 3.4 MOLDING COMPOUND 3.4.1 Glass Fiber Content 47 -
5、 53% (ISO 3451/4, test temperature 600 +/-25 C, test portion 1 g) 3.4.2 Melt Temperature 250 - 265 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
6、 gated test specimens. The following dimensions are required: 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 according to ISO
7、 294. No annealing allowed. -,-,- ENGINEERING MATERIAL SPECIFICATION WSK-M4D596-A Printed copies are uncontrolled Copyright 2005, Ford Global Technologies, LLC Page 2 of 4 3.5.2 Density 1.54 - 1.60 g/cm3 (ISO 1183, Method A/ASTM D 792, Method A1) 3.5.3 Tensile Strength at Max Load, min 190 MPa (ISO
8、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 11 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 2.11 - 3.51 GPa (ASTM D 4065, forced constant amplitude, f
9、ixed 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) Additionally, a Shear Modulus vs. Temperature curve shall be plotte
10、d for -50 to +240 C temperature range, at 5 C minimum intervals. The plotted curve must be within tolerance range shown on page 4. 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, 10 specimens for each test) 3.5.6.1 At 23 +/- 2 C 12 kJ/m2 3
11、.5.6.2 At -40 +/- 2 C 8 kJ/m2 The test specimens must be conditioned for a 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, test can be conducted outside, but within 5 s. 3.5.7 Heat Deflection Temperat
12、ure, min (ISO 75/ASTM D 648, 120 x 10 x 4.0 +/- 0.2 mm specimen) 3.5.7.1 At 1.82 Mpa 240 C 3.5.7.2 At 0.45 Mpa 250 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
13、 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 +/- 25% (Test Method per para 3.5.6.1, specimens to be notched before heat aging) ENGINEERING MATERIAL SPECIFICATION WSK-M4D596-A Printed copies are uncontro
14、lled Copyright 2005, Ford Global Technologies, LLC Page 3 of 4 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 J1756, 3 h at 100 C heating, 21 C cooling plate, post test co
15、nditioning 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 LINEAR THERMAL EXPAN
16、SION 1.5 - 2.2-5/ 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 0.1 - 1.3% 5.2.2 Post Shrinkage (Separate specimens required for each test) After 48 h at 80 C 0.01 - 0.10% After 30 minutes a
17、t 120 C 0.01 - 0.10% 5.3 WATER ABSORPTION 0.3 - 0.9% (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, 80 x 10 x 4.0 +/- 0.2 mm specimen, 10 specimens minimum) 5.4.1 After Moisture Conditioning
18、 20 kJ/m2 The 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 SPECIFICATION WSK-M4D596-A Printed copies are uncontrolled Copyright 2005, Ford Global Technologies, LLC Page 4 of 4 -,-,-