1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2007 06 29 Activated N. Chamberlain Printed copies are uncontrolled Copyright 2007, Ford Global Technologies, LLC Page 1 of 2 PHOSPHATE SOLUTION, ZINC, ACTIVATING AGENT WSS-M3B81-A 1. SCOPE The material defined within this specification is the
2、 activating agent for the phosphate system. 2. APPLICATION This specification was released originally for material used as an activating agent to control the crystallization of zinc phosphate. This material is applied prior to the phosphating stage. 3. REQUIREMENTS 3.1 STANDARD REQUIREMENTS FOR PROD
3、UCTION MATERIALS Material Suppliers and part producers must conform to the Companys Standard For Production Materials (WSS-M99P1111-A). 3.2 MASS SPECTROSCOPY Ford Motor Company, at its option, may conduct mass spectroscopy and/or other analysis of material/parts supplied to this specification. The r
4、esults of the analyses established for initial approval shall constitute the reference standard and shall be kept on file at the designated material laboratory. All samples shall be the same composition as the reference standard when tested under the same conditions. 3.3 COMPOSITION Supplier must ma
5、intain the following characteristics to a maximum tolerance of plus or minus 5% of the initial sample or as reported with the initial sample. All other essential components must be reported with the initial sample and maintained as part of the Control Plan as required in para 3.1. 3.3.1 Chemical Com
6、position Total Phosphate as PO4Initial Sample +/- 5% Zinc Initial Sample +/- 5% ENGINEERING MATERIAL SPECIFICATIONWSS-M3B81-APrinted copies are uncontrolled Copyright 2007, Ford Global Technologies, LLC Page 2 of 2 3.4 RESISTANCE PROPERTIES The material defined by this specification must be used wit
7、h a phosphate system and in conjunction with the phosphate system must meet the requirements of WSS-M3P1-D. 3.5 MATERIAL PROPERTIES The material in conjunction with the phosphate system must meet the requirements of WSS-M3P1-D for a period no less than 13 weeks without dumping and re-charging of thi
8、s material beyond normal usage. 3.6 MATERIAL COMPATIBILITY The material must be compatible with all related materials, ie., electrocoats, sealers, and adhesives. The supplier of this material shall keep abreast of changes in technology of related materials which may affect the compatibility and performance of this product. The supplier shall notify the appropriate Ford Product Materials Engineering Office in writing when incompatibility in anticipated.
