Process and plant for pickling materials made of steel, in parti

Details Process and plant for pickling materials made of steel, in parti Process and plant for pickling materials made of steel, in parti

1996-02-15

1998-09-01

Phasge, Arun S.

Electrolysis: processes, compositions used therein, and methods

Electrolytic material treatment

Metal or metal alloy

205712, 205714, 204206, 204207, 204208, C25F 100

Patent

active

058006940

ABSTRACT:
The invention concerns a process for pickling material strips made of steel, in particular stainless steel, where the strip passes through at last one pickling bath with at least one pickling acid. It is above all characterized by the fact that the acid concentration and/or the acid composition is controlled as a function of the material quality, of the pre-treatment and of the operating parameters of the pickling plant. Furthermore, the invention concerns a plant for carrying out the process, where at least two circulation tanks having different acid concentrations and/or acid compositions are provided.

REFERENCES:
patent: 4129485 (1978-12-01), Shikata et al.
patent: 4450058 (1984-05-01), Lovejoy
patent: 4851092 (1989-07-01), Maresch

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