| 摘要 |
PURPOSE: A sink roll for preventing the groove mark defects of a strip is provided to improve the surface quality of the strip by preventing the color difference of the strop due to a groove mark. CONSTITUTION: A sink roll(10) for preventing the groove mark defects of a strip comprises a roll body, a groove, and multiple holes. The roll body has a circular cross section and guides the strip around the outer circumference thereof while rotating. The groove is formed along the outer circumference of the roll body. The holes are formed at predetermined intervals along the flat portion of the groove to continuously supply a zinc solution to the strip during the rotation of the roll body.
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