1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions Ver.4 2008 08 08 N-STATUS No Replacement Named G. Weber, FNA 2007 08 31 Revised Inserted 3.0; Deleted 3.1, 3.7, 3.8 & 4 1984 09 21 Released COL2-610193-C Printed copies are uncontrolled Copyright 2008, Ford Global Technologies, LLC Page 1 of
2、2 CORROSION PROTECTIVE COATING, RESIN BONDED ESA-M21P8-A FLUOROCARBON NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a resin bonded fluorocarbon coating having excellent corrosion resistance and surface adhesion, and providing good wear resistance and a low coef
3、ficient of friction. 2. APPLICATION This specification was released originally for a corrosion protective coating for brake anti-lock sensor rings. 3. REQUIREMENTS Material specification requirements are to be used for initial qualification of materials. 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATE
4、RIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.2 APPEARANCE The coating shall be uniform in color and coverage, and free of any visual imperfections, such as cracks, chips, tears or contaminants. The coating
5、 shall be black unless otherwise specified on the engineering drawing. 3.3 ZINC PHOSPHATE COATING Prior to fluorocarbon coating, the parts shall be immersion coated with zinc phosphate to 6.5-12.9 g/m. 3.4 FILM THICKNESS 0.015 - 0.038 mm (FLTM BI 117-01) 3.5 ADHESION (FLTM BI 106-01, Method A, use 1
6、3 mm Must not flake, scratch and tape from Method B) chip or transfer film to tape. 3.6 CORROSION RESISTANCE, min 500 h (ASTM B 117) 3.6.1 Salt Spray Evaluation Parts must meet a minimum rating of #7 per ASTM D 1654, Schedule No. 2. ENGINEERING MATERIAL SPECIFICATION ESA-M21P8-A Printed copies are u
7、ncontrolled Copyright 2008, Ford Global Technologies, LLC Page 2 of 2 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specification. 5.1 COEFFICIENT OF FRICTION, max Kinetic 0.08 - 0.10 (ASTM D 2714, 4500 Cycles) 5.2 FLUID RESISTANCE Must not transfer (ASTM D 2510) film to tape 5.2.1 ESA-M6C25-A Brake Fluid ESE-M97B44-A Ethylene Glycol ESE-M2C38-F Oil
