Aqueous solution for the cold-working treatment of steel sheet

Details Aqueous solution for the cold-working treatment of steel sheet Aqueous solution for the cold-working treatment of steel sheet

1996-12-09

1998-09-29

Reamer, James H.

Compositions

Preservative agents

Anti-corrosion

252392, 106 1413, 106 1405, C23F 11167

Patent

active

058142479

ABSTRACT:
According to the invention, the solution contains a water-soluble salt of heptanoic acid and an oxidizing agent and, preferably, a wetting agent.
By virtue of the combination of these compounds, low concentrations are sufficient to obtain satisfactory corrosion protection, which makes it possible to maintain a nonfatty surface appearance (on the treated sheet) and facilitates the treatment of the solution effluent (or that of the subsequent degreasing effluent).

REFERENCES:
patent: 3220233 (1965-11-01), Thomsen et al.
patent: 4687634 (1987-08-01), Baseman
patent: 5348575 (1994-09-01), Muller et al.
patent: 5507861 (1996-04-01), Caupin et al.
patent: 5650097 (1997-07-01), Wysong et al.

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