PRODUCTION OF HOT-DIP PLATED STEEL SHEET EXCELLENT IN SURFACE QUALITY
PROBLEM TO BE SOLVED: To provide a plating method capable of preventing the generation of unevenness in the glass of plating, deterioration in glosiness and unevenness in alloying reaction without deteriorating corrosion resistance, workability, coating adhesion, coating suitability or the like requ...
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Format: | Patent |
Sprache: | eng |
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Zusammenfassung: | PROBLEM TO BE SOLVED: To provide a plating method capable of preventing the generation of unevenness in the glass of plating, deterioration in glosiness and unevenness in alloying reaction without deteriorating corrosion resistance, workability, coating adhesion, coating suitability or the like required for a hot-dip plated steel sheet and furthermore without reducing the line rate in plating operation and moreover capable of obtaining excellent surface quality even if the plating is applied in a state in which thin scale is present on the surface of the hot rolled steel sheet. SOLUTION: At the time of passing a steel strip 1 through the inside of a hot-dip plating continuous furnace and thereafter applying it with plating in a hot-dip plating continuous bath, in the process after a cooling zone 5 in the hot-dip plating continuous furnace, the steel strip in the temp. range of 350 to 650 deg.C is subjected to bending and unbending working in the ranges of |
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