METHOD AND APPARATUS FOR PICKLING METAL STRIP

PROBLEM TO BE SOLVED: To provide a means with which in the case of performing descaling with a pickling by using a chemical descaling and a mechanical descaling, the descaling rate is improved and clogging of brushing rolls can be prevented. SOLUTION: When a metal strip is descaled by passing throug...

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Bibliographische Detailangaben
1. Verfasser:	HIROTA AKIHITO
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMICAL SURFACE TREATMENT CHEMISTRY CLEANING CLEANING IN GENERAL 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 METALLURGY PERFORMING OPERATIONS PREVENTION OF FOULING IN GENERAL TRANSPORTING
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a means with which in the case of performing descaling with a pickling by using a chemical descaling and a mechanical descaling, the descaling rate is improved and clogging of brushing rolls can be prevented. SOLUTION: When a metal strip is descaled by passing through a pickling vessel filling up acid solution and providing the brushing rolls, the acid solution is injected to the contacting part between this metal strip and the brushing rolls. COPYRIGHT: (C)2004,JPO