| 摘要 |
A manufacturing device for a cast bar and tube has a molten metal furnace 10 for holding a dissolved casting material and a penetrating part 23 of molten metal for penetrating molten metal, and is provided with a hollow tube 20 which can be freely inserted into and withdrawn from the molten metal furnace 10, a depressurization device 30 for reducing the pressure, a connection member 40 for connecting the hollow tube 20 to the depressurization device 30, and an open/close type valve member 50 installed on the connection member 40, and the penetrating part 23 of molten metal is depressurized by switching the valve member 50 to the closed state to reduce the pressure in the side of the depressurization device 30 from the valve member 50 using the depressurization device 30 and inserting an opening 25 of the hollow tube 20 into the molten metal furnace 10 as well as by switching the valve member 50 to the open state, thereby penetrating molten metal into the penetrating part 23 of molten metal under reduced pressure to solidify the penetrated molten metal in the penetrating part 23 of molten metal to manufacture a long belt-like member. This allows for easily yielding a cast bar or a cast tube which is utilized as a material for casting process and plastic working at low cost and in a short time. |
