| 摘要 |
PROBLEM TO BE SOLVED: To provide a continuous hot-dip galvanizing method allowing for prevention of dross adhesion to a steel strip due to the vibration of steel strip itself caused by the shape or the like of the steel strip.SOLUTION: There is provided the continuous hot-dip galvanizing method for subjecting a steel strip S to hot-dip galvanizing processing. In the continuous hot-dip galvanizing method, the vibration velocity of a collecting roll 5-1 which is an in-bath support roll in a plating tank 2 is measured, an operation condition is controlled on the basis of the measured vibration velocity value in such a way that the vibration velocity of the in-bath support roll is a threshold value or less, and the operation condition is pushed-in quantity of the collecting roll 5-1 and/or the tension of the steel strip 2.SELECTED DRAWING: Figure 1 |
