| 摘要 |
PURPOSE:To supply automatically and stably powder and to form an ingot having high quality by determining the supply rate of the powder from the basic supply rate of the powder proportional to a casting speed and the correction rate varying with the supply position of the powder. CONSTITUTION:A supply control part 5 outputs X-, Y-direction driving signals SX, SY according to a powder spraying range, etc. in adition to the basic supply rate from a mode selection part 6 and supplies the signals to driving motors 7, 8 when information is inputted from a computer 1 to a powder supply control part 5. A powder loading nozzle 12 is thereby moved and the powder correction rate varying with the powder supply position into a mold is applied, by which a screw driving motor 9 is driven and controlled. The powder in a hopper 10 is thus extruded by a screw feeder 11 and is supplied from the nozzle 12 into the mold.
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