1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2005 09 13 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.8, 3.9 & 4 1989 12 22 Released RD885100-281 C.F. Carter Printed copies are uncontrolled Copyright 2005, Ford Global Technologies, LLC Page 1 of 5 POLYAMIDE (PA) 66, HEAT STABILIZED, 20% GLAS
2、S WSH-M4D587-A FIBER REINFORCED, ENGINE COOLANT RESISTANT MOLDING COMPOUND 1. SCOPE The material defined by this specification is a glass fiber reinforced, heat stabilized and engine coolant resistant polyamide 66 injection molding compound. 2. APPLICATION This specification was released originally
3、for material used in the plastic radiator end tank drain cock. 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 3.
4、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 test values indicated herein are based on material and specimens with moisture
5、 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 at 40 - 50 C at a redu
6、ced 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 before testing. 3.4 MOLDING COMPOUND 3.4.1 Glass Fiber Content 20 - 24% (ISO 3451/4, test temperature
7、600 +/- 25 C, test portion 1 g) 3.4.2 Melt Temperature 250 - 265 C (ISO 1218, 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. ENGINEERING MATERIAL SPECIFICATI
8、ONWSH-M4D587-A Printed copies are uncontrolled Copyright 2005, Ford Global Technologies, LLC Page 2 of 5 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
9、 of the test specimen A and/or B. The specimens shall be prepared according to ISO 294. No annealing allowed. 3.5.2 Density 1.28 - 1.32 g/cm3(ISO 1183, Method A/ASTM D 792, Method A1) 3.5.3 Tensile Strength at Max Load, min 138 MPa (ISO R 527/ASTM D 638M, 150 min x 10 x 4.0 +/- 0.2 mm specimen, 5 mm
10、/min test speed) 3.5.4 Flexural Modulus, min 6.2 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 1.10 - 1.70 GPa (ASTM D 4065, forced constant amplitude, fixed frequency of 1 Hz +/- 15%, strain level below 1%. Specim
11、en approx. 60 x 10 x 4.0 +/- 0.2 mm cut from the center of specimen A. Specimen between clamps 35-40 mm. Soak time at each temperature interval -3 minutes minimum) Additionally, a Shear Modulus vs. Temperature curve shall be plotted for -50 to +250 C temperature range, at 5 C minimum intervals. The
12、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 specimen, 10 specimens for each test) 3.5.6.1 At 23 +/- 2 C 5.2 kJ/m23.5.6.2 At -40 +/- 2 C 4.7 kJ/m2The test specimens must be condition
13、ed 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, test can be conducted 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
14、7.1 At 1.82 MPa 230 C 3.5.7.2 At 0.45 MPa 250 C ENGINEERING MATERIAL SPECIFICATIONWSH-M4D587-A Printed copies are uncontrolled Copyright 2005, Ford Global Technologies, LLC Page 3 of 5 3.5.8 Heat Aging Performance (ISO 188/ASTM D 573, 150 +/- 50 air changes/h, 1000 h at 150 +/- 2C. After heat aging
15、 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 +/- 25% (Test Method per para 3.5.6.1, specimens to be notched before heat aging) 3.6 FLA
16、MMABILITY (ISO 3795) Burn Rate, max 100 mm/minute The specimen size required for material approval is 355 x 100 x - +/- 0.1 mm with a smooth surface. 3.7 SPECIAL REQUIREMENTS 3.7.1 Tensile Strength After Immersion in Pressurized Engine Coolant, min 34.5 MPa (FLTM BO 130-01, 6 test specimens minimum
17、at each temperature, as specified below. Perform tests according to para 3.5.3) . After 6 days at 146 +/- 2 C . After 14 days at 140 +/- 2 C . After 40 days at 130 +/- 2 C . After 80 days at 123 +/- 2 C 5. GENERAL INFORMATION The information given below is provided for clarification and assistance i
18、n meeting the requirements of this specification. 5.1 COEFFICIENT OF LINEAR THERMAL EXPANSION 3.0-5/ 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 0.24 - 1.0% 5.2.2 Post Shrinkage (Separat
19、e specimens required for each test) . After 48 h at 80 C 0.01 - 0.05% . After 30 min. at 120 C 0.01 - 0.08% ENGINEERING MATERIAL SPECIFICATIONWSH-M4D587-A Printed copies are uncontrolled Copyright 2005, Ford Global Technologies, LLC Page 4 of 5 5.3 WATER ABSORPTION 0.7 - 1.1% (ISO 62, 24 h/ASTM D 57
20、0, 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 6.2 kJ/m2The notched specimens shall be immersed for 48 h in distilled wa
21、ter 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 SPECIFICATIONWSH-M4D587-A Printed copies are uncontrolled Copyright 2005, Ford Global Technologies, LLC Page 5 of 5
