C - Chemistry – Metallurgy – 23 – C
Patent
C - Chemistry, Metallurgy
23
C
C23C 22/07 (2006.01) B21J 3/00 (2006.01) C21D 10/00 (2006.01) C23F 11/18 (2006.01)
Patent
CA 2514790
The invention is directed to a combination of a conditioner bath and a calcium modified zinc phosphating solution optionally containing hydroxylamine which provide an improved phosphate coating on the surface of ferrous metal articles. In a preferred embodiment, the treatment process further comprises coating the workpiece with a second lubricant. The three treatments work together to provide finer grained phosphate coatings, longer life of the second lubricant bath and improved adherence of the second lubricant, as compared to a similar phosphating bath that is used alone or with a similar second lubricant.
Church Richard
Hacias Kenneth J.
Kulongowski Paul
Russell William C.
Henkel Kommanditgesellschaft Auf Aktien
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
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