Teeming pipe for use at the outlet of a melt container
AssigneeDidier-Werke AG
InventorsErnst Luhrsen, Heinz Schermer
Life of this patent
Estimating the term…
Abstract
A refractory teeming pipe for use at the outlet of a melt container includes a refractory inner pipe member adapted to be connected to the outlet of a melt container, and a refractory outer pipe member telescopically slidably mounted about the inner pipe member for axial movement relative thereto between an upper retracted position and a lower extended position. The inner and outer pipe members include respective outer metal jackets. An upper refractory seal is supported by the outer pipe member and grips against the inner pipe member.
Claims32
A refractory teeming pipe for use at the outlet of a melt container used in a teeming or casting operation, said teeming pipe comprising:
- a refractory inner pipe member adapted to be connected to the outlet of a melt container;
- a refractory outer pipe member telescopically slidably mounted about said inner pipe member for axial movement relative thereto between an upper retracted position and a lower extended position, said outer pipe member surrounding said inner pipe member with a narrow annular gap therebetween;
- and
- an upper refractory seal supported by said outer pipe member adjacent the end thereof closest to the melt container, said upper refractory seal closing one end of said annular gap.
In a teeming or casting system of the type including an upper melt container containing a melt and having a selectively closeable outlet nozzle through which said melt is to be teemed, a lower melt container positioned to receive said melt from said outlet nozzle of said upper melt container, and a refractory teeming pipe connected to said outlet nozzle and through which said melt passes to said lower melt container, the improvements wherein said upper and lower melt containers are immovable with respect to each other in vertical directions, and wherein said teeming pipe comprises:
- a refractory inner pipe member connected to said outlet nozzle of said upper melt container;
- and
- a refractory outer pipe member telescopically slidably mounted about said inner pipe member for axial movement relative thereto between an upper retracted position, whereat said outer pipe member is entirely positioned above and does not extend into said lower melt container, and a lower extended position, whereat said outer pipe member extends downwardly into the interior of said lower melt container.
A refractory teeming pipe for use at the outlet of a melt container used in a teeming or casting operation, said teeming pipe comprising:
- a refractory inner pipe member adapted to be connected to the outlet of a melt container;
- a refractory outer pipe member telescopically slidably mounted about said inner pipe member for axial movement relative thereto between an upper retracted position and a lower extended position;
- and
- pin connection means for fixing said outer pipe member to said inner pipe member at said retracted and extended positions.
A refractory teeming pipe for use at the outlet of a melt container used in a teeming or casting operation, said teeming pipe comprising:
- a refractory inner pipe member adapted to be connected to the outlet of a melt container;
- a refractory outer pipe member telescopically slidably mounted about said inner pipe member for axial movement relative thereto between an upper retracted position and a lower extended position;
- and
- means for adjustably moving said outer pipe member between said retracted and extended positions.
Dependencies are inferred from the claim text.