| 摘要 |
PURPOSE:To prevent a metal plate from warping at room temperature by installing shields against cooling water between a cooling header and a passing region of the metal plate and by making the shields move in the lateral direction of the metal plate front-to-back. CONSTITUTION:Several leveller rollers 17A and 17B each, a top and bottom cooling headers 18A ad 18B are installed in a housing 10A of a hot straightening device 10. Masking guides 22A and 22B are set at both ends of the housing 10A and in positions below and above the rollers 17, respectively. The shields 25A and 25B linked with rollers 23 are set in the masking guides 22A and 22B, respectively. The top of the shields 25A and 25B are connected with the top of piston rods of driving cylinder devices 26A and 26B, respectively. By the connection, the shields 25A and 25B can move in the lateral direction of the plate 12 front-to-back. The mechanism performs accurate adjustment of cooling water of the cooling headers 18A and 18B and prevents the metal plate 12 from warping at room temperature. |
