1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2006 05 03 N-STATUS Replaced by WSK-M4D672-A A. Reaume/M. Masserant 2005 01 07 Revised Inserted 3.0; Deleted 3.1, 3.4.1, 3.4.2, 3.5.3, 3.6 & 4 1963 06 28 Released F6-1076 Printed copies are uncontrolled Copyright 2006, Ford Global Technologies
2、 LLC Page 1 of 3 NYLON (TYPE 6), HEAT STABILIZED ESF-M4D101-A NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a type 6 nylon molding compound, heat stabilized against degradation at elevated temperatures. 2. APPLICATION This specification was released originally
3、 for material used for light service load gears, bearings, grommets, spacers, and other similar parts where temperatures may be as high as 110 C continuously, or up to 149 C intermittently. NOTICE: This material absorbs and retains moisture. Part design and tolerances must accommodate changes in par
4、t dimensions and physical properties due to moisture absorption or loss in the service/assembly environment. Information on this material with respect to moisture should be obtained from the responsible PEO Materials Engineering Department. 3. REQUIREMENTS 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MA
5、TERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.2 HEAT STABILIZER ADDITIVE Ford Motor Company, at its option, may conduct the following heat stabilizer additive test on material/parts supplied to this speci
6、fication. The stabilizer must be present as determined by one of the following tests: Test Method A: To a 10 mL ground glass stoppered graduate add 0.5 mL glacial acetic acid, 1.5 mL of 3% hydrogen peroxide solution (fresh) and a 1 mL of carbon tetrachloride.Place 20 g of nylon pellets and 40 g of d
7、istilled water in a beaker. Allow the water to boil gently for 5 min. Decant off the water into another beaker. Add 7 mL of this decanted water to the previously prepared test solution and shake the mixture vigorously for about 15 s. If the carbon tetrachloride which settles on the bottom is purple,
8、 the heat stabilizer system is present. Test Method B: Place 20 g of nylon pellets and 50 g of distilled water in a beaker. Allow the water to gently boil for five minutes. Decant the water into another beaker. Add 40 mL of this decanted water to a 50 mL ground glass stoppered graduate. Add while st
9、irring 3 mL of nitric acid, two drops of 1 N potassium permanganate solution, and 7 mL of carbon tetrachloride. Shake the mixture vigorously for about 15 s. If the carbon tetrachloride, which settles to the bottom, is brown or purple, the heat stabilizer additive is present. ENGINEERING MATERIAL SPE
10、CIFICATIONESF-M4D101-APrinted copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 2 of 3 3.3 MOLDING COMPOUND 3.3.1 Melting Point 210 - 225 C (ASTM D 789) 3.3.2 Specific Gravity 1.10 - 1.18 (ASTM D 792) 3.3.3 Moisture Content, max 0.3% (ASTM D 789) 3.3.4 Relative Viscosity, mi
11、n 30 (ASTM D 789) 3.4 MOLDED TEST SPECIMEN The following requirements are intended for initial source qualifications, and Initial Sample Inspection Report. These will be rechecked at intervals specified by Quality Assurance. 3.4.3 Tensile Strength, min 56 MPa (ASTM D 638, 50 mm/min) Elongation, ulti
12、mate, min 40% 3.4.4 Impact Strength, Izod, min 43 J/m (ASTM D 256) 3.4.5 Deflection Temperature, min (ASTM D 648, 6.4 mm sample width) At 0.45 MPa 171 C At 1.82 MPa 60 C 3.4.6 Heat Stability (ASTM D 3045, 7 days at 121 C) Tensile Strength, min 69 MPa (ASTM D 638, 50 mm/min) 3.4.7 Flammability, max 1
13、01 mm/min (FLTM BN 024-02, without the lot sampling plan) In addition, the test specimen shall not exhibit any flashing or sudden flaming on either surface in excess of the above maximum value. 3.5 MOLDED PART 3.5.1 Color Natural or as specified on engineering drawing. 3.5.2 Appearance Shall be unif
14、orm in density, texture and finish, free of visible porosity, warpage, heat scorch, checks, cracks, chipped edges and uneven surfaces. Shall also be free of other contamination. ENGINEERING MATERIAL SPECIFICATIONESF-M4D101-APrinted copies are uncontrolled Copyright 2006, Ford Global Technologies, LL
15、C Page 3 of 3 3.5.4 The following requirements will be used as acceptance criteria for molded parts. The tests indicated will be conducted by Ford Motor Company at its option. . Moisture Content, as received 1.00 - 3.00% (ASTM D 789 or FLTM BO 024-02) Processor may determine moisture added by weight
16、 gain method. . Melting Point 210 - 225 C (ASTM D 789) . Relative Viscosity, min 30 (ASTM D 789) 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specification. Moisture Content 0.3% 2.5% 5.1 FLEXURAL MODULUS, GPa 2.8 1.2 5.2 YIELD STRESS, MPa 76 59 5.3 ELONGATION, % 50 200 5.4 When this specification (suffix “A“) is called out, it is permissible to use suffix “B“ as an alternate.
