CONTINUOUS ANNEALING AND PICKLING METHOD OF COLD ROLLED STAINLESS STEEL STRIP AND APPARATUS THEREFOR

PROBLEM TO BE SOLVED: To provide a continuous annealing and pickling method for a cold rolled stainless steel strip with which good surface quality is obtainable at a low cost by rapidly neutralizing and removing an alkaline washing liquid on steel strip surfaces and an apparatus therefore. SOLUTION...

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Hauptverfasser: SATO TAKASHI, KIKUYAMA MASATAKE, TSUZUKI SATOSHI
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creator SATO TAKASHI
KIKUYAMA MASATAKE
TSUZUKI SATOSHI
description PROBLEM TO BE SOLVED: To provide a continuous annealing and pickling method for a cold rolled stainless steel strip with which good surface quality is obtainable at a low cost by rapidly neutralizing and removing an alkaline washing liquid on steel strip surfaces and an apparatus therefore. SOLUTION: The continuous annealing and picking device for the cold rolled stainless steel strip having an alkaline degreasing device 3 on the upstream side of an annealing furnace and pickling equipment 7 on the downstream side thereof is provided with a washing water storing and supplying device 17 for supplying washing water to a water washing device 14 existing on the outlet side of the alkaline degreasing tank 12 of the alkaline degreasing device 3 and a supply line 24 for supplying the waste water after use in a water washing device 22 existing on the outlet side of the pickling tank 21 of the pickling equipment 7 to the washing water storing and supplying device 17. The waste water of the rinsing water for washing after pickling is utilized as the washing water for water washing the stainless steel strip subjected to alkaline washing in a degreasing stage.
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SOLUTION: The continuous annealing and picking device for the cold rolled stainless steel strip having an alkaline degreasing device 3 on the upstream side of an annealing furnace and pickling equipment 7 on the downstream side thereof is provided with a washing water storing and supplying device 17 for supplying washing water to a water washing device 14 existing on the outlet side of the alkaline degreasing tank 12 of the alkaline degreasing device 3 and a supply line 24 for supplying the waste water after use in a water washing device 22 existing on the outlet side of the pickling tank 21 of the pickling equipment 7 to the washing water storing and supplying device 17. 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subjects 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
GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS
INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL
MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS
METALLURGY
METALLURGY OF IRON
MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS
title CONTINUOUS ANNEALING AND PICKLING METHOD OF COLD ROLLED STAINLESS STEEL STRIP AND APPARATUS THEREFOR
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