| 摘要 |
PURPOSE:To prevent the slip of a metallic strip and to prevent sticking of foreign matter by further forming a resin layer on a roll which is coated with a chromium plating layer on the dulled surface. CONSTITUTION:A dulled base metal 1 for roll is coated with the chromium plating layer 2 on which resin 3 is applied after that. Therefore, it can be prevented that iron soap and other solid foreign matter are stuck on the supporting rolls such as deflecter rolls and bridle rolls, etc. of process line for metallic strip. Thus, the generation of defects like press marks due to foreign matter on the surface of the metallic strip is prevented. And, the frequency of roll change because of preventing the generation of the press marks can be remarkably reduced. |
