Process for pickling a piece of steel and in particular a sheet

Details Process for pickling a piece of steel and in particular a sheet Process for pickling a piece of steel and in particular a sheet

1998-09-16

1999-11-30

Butler, Rodney

Metal deforming

With cleaning, descaling, or lubrication of work or product

72200, B21B 4504

Patent

active

059921960

ABSTRACT:
Continuous production line for producing a strip of rolled sheet of steel comprising applying to said sheet of steel an aqueous pickling solution containing hydrochloric acid and ferric and ferrous pickling irons in solution, and, for the purpose of maintaining a constant pickling power of the aqueous solution of hydrochloric acid having a pH lower than 1, maintaining the concentration of Fe.sup.3+ ions at a value between 1 g/liter and 300 g/liter, by reoxidation of the Fe.sup.2+ ions produced during the pickling, the REDOX potential being maintained at a value between 400 and 600 mV, the potential being measured between a platinum electrode and a reference AG/AGCl electrode which are placed in the solution.

REFERENCES:
patent: 3310435 (1967-03-01), Robinson, Jr. et al.
patent: 3385734 (1968-05-01), Barkley
patent: 3423240 (1969-01-01), Oster
patent: 3445284 (1969-05-01), Robinson, Jr. et al.
patent: 4550487 (1985-11-01), Hoshino et al.
patent: 5164016 (1992-11-01), Henriet et al.
patent: 5332446 (1994-07-01), Didier et al.
patent: 5554235 (1996-09-01), Noe et al.
Patent Abstracts of Japan, Abstract of JP 55138081.
Patent Abstracts of Japan, Abstract of JP 63216986.
Patent Abstracts of Japan, Abstract of JP 2205692.
Derwnet Abstract of JP 58073778.

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