High coating weight iron phosphating compositions
作者： Kenneth J. Hacias , John M. Kukalis
DOI:
关键词: Conversion coating 、 Phosphoric acid 、 Phosphate conversion coating 、 Aqueous solution 、 Chlorate 、 Hydroxylamine 、 Chemistry 、 Inorganic chemistry 、 Coating 、 Iron phosphate
摘要: Iron phosphate conversion coatings that are well adapted to serve as carriers for metal cold working lubricants, particularly such lubricants contain polyoxyethylene adducts of long chain primary alcohols a major lubricating component, can be formed on ferriferous surfaces within practical time 5 10 minutes by contact with an aqueous solution almost neutralized phosphoric acid has sufficient Free Acid and/or Total content form heavier coating than do conventional iron phosphating compositions. The forming liquid composition advantageously also contains accelerator component chlorate or hydroxylamine.
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