PROCESS NOT USING CHLORATE OR NITRATE FOR THE PRODUCTION OF NICKEL AND MANGANESE CONTAINING ZINC PHOSPHATE FILMS

摘要

The invention concerns a process, not using chlorate or nitrite, for the production of nickel and manganese containing zinc phosphate films on steel, zinc, and/or zinc alloys by spraying, spray-dipping, and/or dipping, using an aqueous solution. An organic oxidizing agent is added, primarily to depolarize the nascent hydrogen produced.