Tubular shape casting apparatus
Assignee8617490 Canada Inc.
InventorsLuc Montgrain, Jean-François Desmeules, Olivier Dion-Martin
Life of this patent
Estimating the term…
Abstract
A system for casting a length of a pole of a tubular shape with molten metal. The system comprises a crucible for containing the molten metal; a pouring spout fluidly connected to the crucible; and a plunger for plunging in the crucible to increase level of the molten metal in the crucible and thereby forcing a flow of the molten metal from the crucible to the pouring spout. The system further comprises a casting ring for receiving the molten metal poured out of the pouring spout; a motor for rotating the casting ring; a cooling assembly for cooling the molten metal; and a pulling assembly for pulling the pole out of and away from the casting ring as the molten metal solidifies.
Claims20
A system for casting a pole having a tubular shape by pouring molten metal, the system comprising:
- a casting ring for receiving the molten metal, the casting ring comprising an inner surface;
- a downstream ring downstream from where the casting ring receives the molten metal, the downstream ring comprising an internal face facing the inner surface of the casting ring with the internal face of the downstream ring forming a conic shape whereby a space between the casting ring and the downstream ring is greater downstream than upstream;
- a motor for rotating the casting ring;
- and
- a pulling assembly for pulling the pole out of and away from the casting ring as the molten metal solidifies.
A method for casting a pole of a tubular shape having a length and an external surface with molten metal, the method comprising:
- pouring the molten metal over a casting ring having an inner diameter defining an inner surface, the casting ring being mounted to a motor operable to rotate the casting ring at a rotating speed, and the casting ring facing a downstream ring located downstream from where the casting ring receives the molten metal, the downstream ring comprising an internal face facing the inner surface of the casting ring with the internal face of the downstream ring forming a conic shape whereby a space between the casting ring and the downstream ring is greater downstream than upstream;
- cooling the casting ring, whereby the molten metal contacting the casting ring gradually solidifies;
- and
- pulling gradually the pole out of the casting ring while rotating the pole at the rotating speed,
- wherein the rotating of the casting ring and the pulling of the pole increases gradually the length of the pole.
Dependencies are inferred from the claim text.