1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2006 04 27 N-STATUS Replaced by WSK-M4D666-A; Inserted 3.0; Deleted 3.1, 3.6, 3.7, 3.8 & 4 A. Reaume/M. Masserant1992 01 02 DF00E00107002102 Revised para 3.5.4 L.P. Rumao 1978 04 13 CF4H-RD567179-4 Released (was XF-M4DX128) Printed copies are
2、uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 1 of 2 POLYAMIDE 66 (PA66), HEAT STABILIZED IMPROVED ESF-M4D387-A TOUGHNESS MOLDING COMPOUND NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a heat stabilized polyamide 66 blend with improved toughne
3、ss. 2. APPLICATION This specification was released originally for material used on starter coil insulators. 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 ser
4、vice/assembly environment. 3. REQUIREMENTS 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). 3.2 HEAT STABILIZER ADDITIVE Ford Motor Company, at its option, may conduc
5、t following heat stabilizer additive test on material/parts supplied to this specification. The stabilizer must be present. Test Method: Ash 1 g sample in a covered porcelain crucible (size 17 H is suitable) using a muffle furnace at a temperature of 500 520 C. Be certain temperature does not exceed
6、 530 C. Overheating will volatilize the stabilizer. Allow the crucible to cool to room temperature and then add 1 - 2 Ml of 5 molar hydrochloric acid, swishing to wash sides of crucible with acid. Evaporate to dryness, preferably on a steam bath or by very gentle heating with a low flame. Do not ove
7、rheat. Dissolve the stabilizer by warming in 3 - 4 drops of distilled water. Note: Greenish yellow color may occur at this point, which indicates the presence of a heat stabilizer. If the color does not occur, proceed as follows. Withdraw by means of a capillary tube and place on a piece of #40 What
8、man filter paper. Add directly 2 - 3 drops of a 5% solution of benzoine oxime in absolute ethanol (color complexing agent). Hold the filter paper over concentrated ammonium hydroxide for 2 minutes. A faint greenish yellow color indicates the presence of a heat stabilizer. It is imperative to use con
9、trols of stabilized and non-stabilized nylons, because color is weak and can be interpreted incorrectly. It is also very important to avoid any possibility of contamination. 3.3 CONDITIONING AND TEST CONDITIONS All test values indicated herein are based on material and specimens with moisture conten
10、t not exceeding 0.3% (test according to ASTM D 789). ENGINEERING MATERIAL SPECIFICATIONESF-M4D387-A Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 2 of 2 All test materials immediately after processing have to be sealed in containers that are impermeable to water
11、vapor. If the moisture content exceeds 0.3%, 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 im
12、mediately before testing. 3.4 MOLDING COMPOUND 3.4.1 Melting Point 250 - 265 C (ASTM D 789) 3.4.2 Moisture Content, max 0.3% (ASTM D 789) 3.5 MOLDED TEST SPECIMEN 3.5.1 Specific Gravity 1.09 - 1.13 (ASTM D 792) 3.5.2 Tensile Strength, min 58 MPa (ASTM D 638, 50 mm/minute test speed) Elongation, Ulti
13、mate, min 15% 3.5.3 Impact Strength, Izod, min 96 J/m (ASTM D 256) 3.5.4 Heat Deflection Temperature, min (ASTM D 648, 6.4 x 12.7 x 127 mm specimen, annealed 30 minutes at 175 - 204 C in a suitable fluid, then cooled slowly) At 0.45 MPa 200 C At 1.82 MPa 60 C 3.5.5 Heat Stability (ASTM D 3045, 84 h
14、at 204 +/- 5 C) Tensile Strength, min 48 MPa (ASTM D 638, 50 mm/minute test speed) 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specification. At 2.5 % Moisture Content 5.1 FLEXURAL MODULUS 1.2 GPa 5.2 TENSILE STRENGTH AT YIELD 59 MPa 5.3 ELONGATION 200% 5.4 RECYCLING CODE SAE OPTIONAL * PA66 *
