1、 ENGINEERING MATERIAL SPECIFICATION Material Name Specification Number Date Action Revisions 2009 05 28 N-STATUS No Replacement Named L. Sinclair, FNA 2002 08 14 Revised Updated and renumbered 1981 12 11 Released SM/EQ 8894 TP Printed copies are uncontrolled Page 1 of 1 Copyright 2009, Ford Global T
2、echnologies, Inc. PHOSPHATE SOLUTION, ZINC, ACTIVATING AGENT SK-M5B9613-A NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is an activating agent supplied as a white powder. 2. APPLICATION This specification was released originally for material used as an activating
3、agent to improve the crystallization of zinc phosphate solutions. The material is added to the wash zone prior to spray phosphating. 3. REQUIREMENTS 3.1 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Product
4、ion Materials (WSS-M99P1111-A). 3.2 CHEMICAL COMPOSITION Alkaline Phosphate as P205: 38.0 +/- 3.0 % Titanium Complex Salts as Ti: 1.25 +/- 0.25 % 3.3 TITRATION 10 ml of the solution are filled up to 1000 ml with distilled water. 10 ml of this solution need 4.5 +/- 0.4 ml 0.1 n sulphuric acid (H2SO4) (Methylorange Indicator). 3.4 pH-VALUE 1 % SOLUTION BY WEIGHT AT 20 C 7.7 +/- 1.0 3.5 COLOUR white
