| 摘要 |
PURPOSE:To maintain a uniform flow rate distribution and to cast a thin metallic sheet having good quality without rippled surfaces, etc. by providing a box- shaped gate formed with notches for outflow of a molten metal on one side face between a nozzle and rolls. CONSTITUTION:The space between a pair of the casting rolls 4 is set at a prescribed distance and thereafter the rolls are rotated at a required speed and the molten metal is poured into said space from the nozzle 1. The molten metal 3 received in the gate 2 overflows from notches 7 on both side faces in the form of the broad thin film-like flow along the axial direction of the rolls and flows down toward the surface of the rolls 4. The molten metal 3 in contact with the rolls 4 is immediately cooled and solidified to form shells. The shells move between the rolls and below the same; at the same time, a molten metal pool is formed by the molten metal supplied successively between the shells. The solidified shells are drawn out below the rolls according to the rotating speed of the rolls and a thin billet 6 is thus obtd. |
