MANUFACTURING METHOD OF HOT DIP ALUMINIZED STEEL SHEET

PROBLEM TO BE SOLVED: To provide a manufacturing method of a hot dip aluminized steel sheet capable of suppressing generation of dross in a plating bath, and preventing generation of surface defects attributable to the dross. SOLUTION: When forming a plating layer consisting of aluminum or an alumin...

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Bibliographische Detailangaben
Hauptverfasser:	OMORI TATSURO, SUGIYAMA SEIJI, TANAKA HIROYUKI
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 INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL METALLURGY SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a manufacturing method of a hot dip aluminized steel sheet capable of suppressing generation of dross in a plating bath, and preventing generation of surface defects attributable to the dross. SOLUTION: When forming a plating layer consisting of aluminum or an aluminum alloy on a surface of a steel sheet 1 by continuously immersing the steel sheet 1 in a plating bath 2 mainly consisting of aluminum, the set temperature t of the plating bath 2 is 645-670°C, the temperature of the steel sheet 1 when being immersed in the plating bath 2 is set to be within ±5°C with respect to the set temperature t of the plating bath 2, and the temperature fluctuation of the plating bath 2 when the steel sheet 1 is immersed therein is set to be within ±2°C. COPYRIGHT: (C)2008,JPO&INPIT