| 摘要 |
PURPOSE:To detect correctly a slab position by changing and casting the slab width and thereafter, obtaining the measuring data of the slab width. CONSTITUTION:By the command to change the slab width from a central arithmetic unit 12, a width changing control device 14 controls a variable width mold 3. By the control of the mold 3, a slab width (b), accompanying the changing of the product coil width and simultaneously, by the width bW in the allowable error dimensions scope of the finish slab width, gives the changing the special pattern finely. Next, the width changing control device 14 communicates the actual result width value of the changing width measured by a width measuring device 7 to a fetching arithmetic unit 12. The arithmetic unit 12 determines the slab cutting length which is suitable and has a good yield, from the information concerning the charging position from a casting length computing element 9 and the cutting method stipulated separately, and outputs to a cutting control device 11. Here, by controlling the width of a slab 4 by means of the width changing control device 14, the position of the slab can be grasped correctly, and therefore, the cutting with a good yield can be executed.
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