1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2003 08 29 Revised Para 3.0 inserted; Para 3.5 & 4 deleted 1982 12 08 Released CEM2-896984-C Printed copies are uncontrolled Copyright 2003, Ford Global Technologies, Inc. Page 1 of 1 PHOSPHATE COATING, MANGANESE IRON MICROCRYSTALLINE ESA-M3P3
2、1-A 1. SCOPE This specification defines the performance requirements for a microcrystalline manganese iron phosphate conversion coating on cast iron, sintered iron or steel surfaces. 2. APPLICATION This specification was released originally for a coating that will provide improved lubrication on pow
3、er steering pump components and a consequent resistance to wear on moving parts of close tolerance. 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
4、1 PROCESS Parts covered by this specification shall be processed in accordance with Process Standard PL 53-37. 3.2 APPEARANCE The coating shall be dense, continuous and uniform, and shall have a fine crystalline structure similar to that of the original approved samples. 3.3 FILM THICKNESS 0.0002 - 0.0005 in (5 - 13 m) or as specified on engineering drawing. 3.4 MATERIAL REFERENCES 3.4.1 Alkaline Cleaner M-5B309 3.4.2 Conditioner Preheat M-3B67-A 3.4.3 Manganese Phosphate Coating M-3B40-A 3.4.4 Neutralizer M-98B61 3.4.5 Rustproof Solution M-7C63
