1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions 2016 04 20 N Status No replacement named L. Sinclair, NA 2004 11 17 Revised Inserted 3.0; Deleted 3.1, 3.3, 3.4 Corrected numbering 3.2 1985 03 20 Released CF40RD888002-262 Copyright 2016, Ford Global Technologies, LLC Page 1 of 2 PHENOLIC (P
2、F) MOLDING COMPOUND, ESF-M3D144-A2 FILLED - ASBESTOS FREE ESF-M3D144-A3 NOT TO BE USED FOR NEW DESIGN 1. SCOPE The materials defined by these specifications are filled, asbestos free phenolic molding compounds. 2. APPLICATION These specifications were released originally for materials used for moldi
3、ng commutator assemblies for small motors in automobile accessories, where arc resistance is required. 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)
4、 3.2 MOLDED PROPERTIES A2 A3 3.2.1 Specific Gravity 1.75 - 2.00 1.60 - 1.70 (ASTM D 792) 3.2.2 Water Absorption, %, max 0.5 0.5 (ASTM D 570) 3.2.3 Impact Strength, Izod, 25 30 J/m, min (ASTM D 256, Method A) 3.2.4 Flexural Strength, MPa, min 80 68 (ASTM D 790) 3.2.5 Tensile Strength, MPa, min 50 50
5、 (ASTM D 638) 3.2.6 Compressive Strength, MPa, min 140 190 (ASTM D 695) 3.2.7 Heat Deflection 200 250 Temperature C, min (ASTM D 648, at 1.82 MPa) 3.2.8 Hardness, Rockwell M, min 90 90 (ASTM D 785) ENGINEERING MATERIAL SPECIFICATION ESF-M3D144-A2/A3 Copyright 2016, Ford Global Technologies, LLC Page 2 of 2 A2 A3 3.2.9 Dielectric Strength, kV/mm, min 10.0 10.0 (ASTM D 149, short time) 3.2.10 Arc Resistance, s, min 180 180 (ASTM D 495) 3.2.11 Ash, %, min 40 40 (FLTM BO 006-02)
