1、 ENGINEERING MATERIAL SPECIFICATION Material Name Specification Number Date Action Revisions 2002 08 19 Revised Updated and renumbered 1996 04 04 Revi sed Complete Revise, -A2 added K. Wolters 1987 12 18 SM/EQ 1579 TP Released C. Herriott Printed copies are uncontrolled Page 1 of 2 Copyright 2002, F
2、ord Global Technologies, Inc. PHOSPHATE SOLUTION, ZINC, ACTIVATING AGENT ESK-M5B327-A PHOSPHATE SOLUTION, ZINC, ACTIVATING AGENT, LIQUID ESK-M5B327-A2 1. SCOPE The materials defined by these specifications are activating agents. 2. APPLICATION These specifications were released originally for materi
3、als used as activating agent to control the crystallisation of zinc phosphate. The material is added to the wash zone prior to spray or dip phosphating. 3. REQUIREMENTS 3.1 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requ
4、irements For Production Materials (WSS-M99P1111-A). 3.2 CHEMICAL COMPOSITION ESK-M5B327-A ESK-M5B327-A2 Total Phosphate as P205 30.0 +/- 4.0 % 10.8 +/- 0.8 % Titanium as Ti02 4.7 +/- 1.5 % 0.06 +/- 0.03 % 3.3 TITRATION 6.0 +/- 1.5 ml 15 +/- 3 ml Titrate 10 ml of a 1 % solution by volume with 0.1n su
5、lfuric acid (H2SO4). Use bromocresol green indicator. 3.4 pH-VALUE 10.3 +/- 1.0 9.9 +/- 0.3 1 % solution by volume at 20 C. ENGINEERING MATERIAL SPECIFICATION ESK-M5B327-A/A2 Page 2 of 2 Copyright 2002, Ford Global Technologies, Inc. 4. GENERAL INFORMATION The information given below is provided for
6、 clarification and assistance in meeting the requirements of this specification. 4.1 The phosphate system released by these specifications consists of the following materials: 4.1.1 Phosphate Solution, Zinc, Alkaline Cleaner SKM-5B9599-A or ESK-M5B340-A 4.1.2 Phosphate Solution, Zinc, Start Up ESK-M5B337-A 4.1.3 Phosphate Solution, Zinc, Make Up ESK-M5B338-A 4.1.4 Phosphate Solution, Zinc, Accelerator SM-5B4509-A 4.1.5 Phosphate Solution, Zinc, Passivating Solution SKM-5B9574-A or ESK-M5B326-A 4.1.6 Phosphate Solution, Zinc, pH Correction Agent SKM-5B9574-B
