1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions Ver. 4 2008 07 18 N-STATUS No Replacement Named G. Weber, FNA 2003 07 28 Revised Para 3.0 inserted; Para 3.1, 3.6, 4 deleted 1963 07 31 Released E7-2739 Printed copies are uncontrolled Copyright 2008, Ford Global Technologies, Inc. Page 1 of
2、2 PLATING, IMMERSION TIN ESE-M1P28-A1 PLATING, FLOW-COAT TIN ESE-M1P28-A2 NOT TO BE USED FOR NEW DESIGN 1. SCOPE These specifications define the performance of tin plating on aluminum alloy parts. 2. APPLICATION These specifications were released originally for coatings used where scuff and wear res
3、istance break-in coatings are required, such as aluminum alloy pistons. ESE-M1P28-A1 replaces ESE-M1P28-A. Engineering drawings specifying ESE-M1P28-A do not require revision to reflect the new suffix designation. 3. REQUIREMENTS Material specification requirements are to be used for initial qualifi
4、cation of materials. 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 COLOR The coating on the finished product shall be of a silver-gray appearance. Note: A heav
5、y dark coating is not acceptable except in non-functional areas such as inside of a piston. 3.3 ADHESION The coating shall not peel or flake. It must be free of blisters on all plated surfaces. 3.4 THICKNESS The coating shall be uniform in thickness and 0.6 - 2.5 m using the microscopic method (ASTM
6、 B 487) or coulometric method (ASTM B 504). 3.5 QUALITY The parts shall be cleaned and rinsed by good commercial practice. At no time shall wire brushing or abrasive brushing of functional surfaces be permitted, such as piston skirt thrust surfaces. ENGINEERING MATERIAL SPECIFICATION ESE-M1P28-A1/A2
7、 Printed copies are uncontrolled Copyright 2008, Ford Global Technologies, Inc. Page 2 of 2 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of these specifications. 5.1 REFERENCED FORD MANUFACTURING STANDARDS ESE-M1P28-A1 PL 08-11A(E) ESE-M1P28-A2 PL 08-12A(E)
