METHOD AND DEVICE FOR PRODUCING HOT-ROLLED HOT-DIP PLATED STEEL STRIP EXCELLENT IN PLATING ADHESION

PURPOSE:To improve the plating adhesion of a hot-dip plated steel sheet by specifying the conditions in coil rewinding, reduction and temp. control and using a nonoxidizing or reducing atmosphere from reduction until immediately before plating. CONSTITUTION:A hot-rolled and wound coil is rewound at...

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Hauptverfasser:	YAMAZAKI JIRO, OGURA MASAMI, TANAKA KOICHIRO, KONO OSAMU, HIGUCHI TOSHIYUKI, HIWATARI SATOAKI, HAJI JUNJI, EZAKA KAZUAKI, KATO HIDEO
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMICAL SURFACE TREATMENT CHEMISTRY COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR 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 MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS PERFORMING OPERATIONS PUNCHING METAL ROLLING OF METAL SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION TRANSPORTING
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Beschreibung
Zusammenfassung:	PURPOSE:To improve the plating adhesion of a hot-dip plated steel sheet by specifying the conditions in coil rewinding, reduction and temp. control and using a nonoxidizing or reducing atmosphere from reduction until immediately before plating. CONSTITUTION:A hot-rolled and wound coil is rewound at >=100 deg.C, strained and reduced at >=600 deg.C. The temp. is then controlled to