Pressing device of pressure type pouring furnace

Abstract

Abstract PURPOSE: The pressing device of the pressure-type pouring furnace which is so constituted as to suppress the formation of slag through the use of inert gas as a pressing gas in the pouring furnace and suppress the consumption of additives. CONSTITUTION: An exhaust valve 25 is closed and the inert gas having been pressure-stored in a surge tank 23 is pressure-regulated 24 and fed into a pouring furnace 1, whereby the pressure in a storage cell 2 is regulated to the value P necessary for letting molten metal level rise up to the specified height of a tapping hole 5. Next, insert gas is supplied from the tank 23 into the furnace 1 to let the pressure in the cell 2 rise by the pressure ΔP necessary for the molten metal to flow out beyond the ingate of the tapping hole 5. To stop tapping, the valve 25 is opened to exhaust the inert gas in the cell 2 into the exhaust tank 26 and release the pressure in the cell 2, thereby lowering the molten metal level at the tapping hole 5 and stopping the pouring. The inert gas exhausted into the tank 26 is sucked to a compressor 22 through a filter 27 to be compressed and pressed. This gas is again stored in the tank 23 and is reused as the pressurizing gas at the next pouring. COPYRIGHT: (C)1980,JPO&Japio

Inventors

• 👤 Tsugiharu Omori
• 👤 Tsutomu Kojima

Bibliographic Details