1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2004 11 17 Revised Inserted 3.0; Deleted 3.3 Complete revision M. Myers1963 06 28 Released F6-1076Printed copies are uncontrolled Copyright 2004, Ford Global Technologies, LLC Page 1 of 2 PHENOLIC MOLDING COMPOUND, FLOCK FILLED - ESA-M3D73-B M
2、EDIUM IMPACT 1. SCOPE The material defined by this specification is a two stage, flock filled, phenolic molding compound with medium impact properties. 2. APPLICATION This specification was released originally for material used in power steering pump pulleys. 3. REQUIREMENTS 3.0 STANDARD REQUIREMENT
3、S FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.1 MOLDED MATERIAL PROPERTIES 3.1.1 Impact Strength, Izod, min 26.7 J/m (ASTM D 256) 3.1.2 Specific Gravity 1.38 - 1.48 (ASTM D 792) 3.1.3 F
4、lexural Strength, min 69 MPa (ASTM D 790) 3.1.4 Tensile Strength, min 44.8 MPa (ASTM D 638) 3.1.5 Compressive Strength, min 186 MPa (ASTM D 695) 3.1.6 Water Absorption, max 0.6 (ASTM D 570, 24 h at 23 +/- 2 C) 3.1.7 Hardness - Rockwell “M“, min 105 (ASTM D 785) 3.1.8 Deflection Temperature, min 168
5、C (ASTM D 648, 1820 kPa) 3.1.9 Ash, min 11% (FLTM BO 006-02) ENGINEERING MATERIAL SPECIFICATIONESA-M3D73-BPrinted copies are uncontrolled Copyright 2004, Ford Global Technologies, LLC Page 2 of 2 3.1.10 Dielectric Strength (ASTM D 149, 48 h, 50% R.H., 23 +/- 2 C) Short Time 15.7 kV/mm Step by Step 11.8 kV/mm 3.1.11 Coefficient of Linear Thermal 40 x 10-6Expansion mm/mm/C max (ASTM D 646) 3.2 MOLDED PARTS Specific requirements for physical properties of molded parts, when required, shall be specified on engineering drawings. 3.2.1 Water Absorption, max 1.8% (ASTM D 570, except sample size)
