JET PICKLING METHOD AND DEVICE

PURPOSE:To improve pickling efficiency and to carry out stable operations by utilizing waste acids with the jet pickling method and device which pickles a steel strip by a jet pickling system in plural pickling chambers. CONSTITUTION:This jet pickling equipment has the picking chambers 2-1 to 2-3 an...

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Bibliographische Detailangaben
Hauptverfasser:	NAITO YUKIO, HIRAI YUKIMITSU, MATSUMOTO YOSHINORI, TANI KIYOHIRO, MORIMOTO HIROSHI
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMICAL SURFACE TREATMENT CHEMISTRY CLEANING OR DEGREASING OF METALLIC MATERIAL BY CHEMICALMETHODS OTHER THAN ELECTROLYSIS COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL DIFFUSION TREATMENT OF METALLIC MATERIAL INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL METALLURGY PERFORMING OPERATIONS PUNCHING METAL ROLLING OF METAL TRANSPORTING
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Beschreibung
Zusammenfassung:	PURPOSE:To improve pickling efficiency and to carry out stable operations by utilizing waste acids with the jet pickling method and device which pickles a steel strip by a jet pickling system in plural pickling chambers. CONSTITUTION:This jet pickling equipment has the picking chambers 2-1 to 2-3 and circulating tanks 3-1 to 3-3 for supplying acid solns. respectively to the picking chambers 2-1 to 2-3 and pickles the steel strip 1 by projecting the acid solns. from the circulating tanks 3-1 to 3-3 in a jet state to the surfaces of the traveling steel strip 1 in the respective picking chambers 2-1 to 2-3. The waste acids from the circulating tank 3-1 on the extreme downstream side is charged into the circulating tanks 3-1 to 3-3 in accordance with the results of the measurement of the acid concns. in the circulating tanks 3-1 to 3-3, by which the steel strip is pickled while the acid concns. of the circulating tanks 3-1 to 3-3 are adjusted.