1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2007 11 07 Activated L. Rodrigues Printed copies are uncontrolled Copyright 2007, Ford Global Technologies, LLC Page 1 of 2 PHOSPHATE SOLUTION, MANGANESE, MAKE-UP WSS-M5B424-A 1. SCOPE The material defined by this specification is an aqueous s
2、olution containing manganese for ferrous materials phosphate bath. 2. APPLICATION This specification was released originally for South America for material used as manganese iron phosphate coating for gear box, with no Hexavalent Chromium (Cr+6), that will provide a reduction in wear during the init
3、ial breaking-in period, and is not intended for anticorrosion or fastener applications. However, parts coated according to this specification may be oiled to prevent corrosion during shipment. 3. REQUIREMENTS 3.1 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers mu
4、st conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.2 CHEMICAL COMPOSITION Supplier must maintain the following characteristics to a maximum tolerance as reported with the initial sample. All other essential components must be reported with the initial sampl
5、e and maintained as part of the Control Plan. Manganese 5.65 +/- 0.45% (using 0.01M Ethylenediamine tetracetic acid solution, eriochrome black and MgSO4) 3.3 ACIDITY Free (Sodium hydroxide 0.1N) 3.6 +/- 0.2 mL Indicator: Dimethyl yellow Total (Sodium hydroxide 0.1N) 22 +/- 1 mL Indicator: Phenolphth
6、alein 3.4 PHYSICO-CHEMICAL PROPERTIES Color (visual) Green Aspect (visual) Liquid Density at 25 C (ASTM D 1475) 1.27 +/- 0.02 g/mL ENGINEERING MATERIAL SPECIFICATIONWSS-M5B424-A Printed copies are uncontrolled Copyright 2007, Ford Global Technologies, LLC Page 2 of 2 3.5 RESISTANCE PROPERTIES The ma
7、terial defined by this specification must be used with a phosphate system and in conjunction with the phosphate system must meet the requirements of WSS-M3P37-A. 3.6 MATERIAL COMPATIBILITY The material must be compatible with all related materials in the process, i.e., metal parts, degreases and pro
8、tective oils. 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 is anti
9、cipated. 3.7 QUALITY CONTROL A quality control plan must be agreed with Ford Product Materials Engineering as part of approval process. 4. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specification. The scope of batch release report should be agreed with materials engineering.
