| 摘要 |
PURPOSE:To enable the continuous production of steel plates having different widths in a twin roll type continuous casting device for steel plates, by providing movable water cooling rings in both end parts of two rolls. CONSTITUTION:Water-cooling type steel rings 3 each having a central recess 3a, both side edge parts 3b, 3c and a space 3d in the bottom part are mounted in both end parts of two pieces of cooling rolls 1, 2 in a continuous casting device of a twin roll type for steel plates. A flow passage wall 5 for molten steel consisting of a side seal plate 6 and a barrel seal plate 7 is provided on one side in the transverse direction of the rolls 1, 2. While the rolls 1, 2 are rotated in the stage of casting steel plates continuously, the molten steel is supplied into the wall 5, and a solidified layer is formed by the cooling with the rolls and the cooling with both end parts 3b of the rings 3 between the rolls 1 and 2. Said solidified layer is drawn out as a continuous casting steel plate 4 from the spacing between both rolls 1 and 2. To change the width of the plate 4, pressure fluid is forced into the spacing 3d in the bottom part of each ring 3 to float the rings 3 from the rolls and the rings 3 are moved in the axial direction of the rolls, whereby the width of the steel plate is adjusted as desired. |
