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Refractory pouring spout and channel unit for arrangement on outlet of vessel containing molten metal, especially tundish of strip casting installation

A technology of molten metal and nozzle, which is applied in the direction of casting molten material containers, metal processing equipment, manufacturing tools, etc., and can solve problems such as damage to cast strip shells

Inactive Publication Date: 2005-11-02
SMS DEMAG AG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this nozzle arrangement is that the melt flows out with high kinetic energy due to the selected design and flows clearly to the surface of the casting rolls and diverts there into the molten pool, which can result in damage to the strand shell

Method used

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  • Refractory pouring spout and channel unit for arrangement on outlet of vessel containing molten metal, especially tundish of strip casting installation
  • Refractory pouring spout and channel unit for arrangement on outlet of vessel containing molten metal, especially tundish of strip casting installation
  • Refractory pouring spout and channel unit for arrangement on outlet of vessel containing molten metal, especially tundish of strip casting installation

Examples

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Embodiment Construction

[0020] FIG. 1 shows a refractory-lined tundish 10 for pouring molten metal into a strip casting plant 30 known per se and having two casting rolls 31, by means of which strip casting equipment, in particular for the production of thin strips a few millimeters thick and up to 2 meters wide. For the strip casting installation 30 , which is only partially shown, casting rolls 31 and a casing 32 surrounding the casting rolls are shown.

[0021] The tundish 10 has a cover plate 15', an inner cavity containing the melt 13 and a sprue 14 arranged on its bottom. The melt 13 is injected via a submerged nozzle tube 16 which itself protrudes into the tundish 10 and which is connected to the sprue of a ladle, not shown in detail. A nozzle 21 forming the gate 14 protrudes into a bath 33 of molten metal between casting rolls 31 which rotate in themselves. In this case, the interior of the tundish 10 is advantageously filled with an inert gas. Between the tundish 10 and the cover plate 32...

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Abstract

A refractory pouring spout and channel unit for the arrangement on the outlet of a tundish of a strip casting installation has at least one vertical, refractory pouring spout and channel part ( 25 ) which can be connected to the tundish; and a refractory pouring spout and channel part ( 25 ') which originates from said vertical part, which extends horizontally and which is provided with one or more openings that are distributed over its length. This results in almost constant laminar flow conditions for the melt flowing between the casting rollers.

Description

technical field [0001] The invention relates to a refractory nozzle arrangement for placement on the sprue of a vessel containing molten metal, and in particular a tundish of a strip casting plant, wherein the nozzle arrangement has at least one vertical refractory nozzle connectable to the tundish A nozzle portion and a refractory nozzle portion extending horizontally from the vertical refractory nozzle portion, the horizontal nozzle portion is provided with one or more openings distributed along the length. Background technique [0002] In the known strip casting plant according to document FR-A-2753402, a tundish is arranged above the casting rolls and a ladle is arranged above the tundish. In this case, a nozzle tube projects into the tundish at the ladle sprue, which in turn has a sprue and a nozzle which enters between the casting rolls. Furthermore, a stopper for controlled pouring of the melt is provided in the ladle. In this case, disadvantageously, there is a rel...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22D11/06B22D11/10B22D41/08B22D41/50
CPCB22D41/08B22D11/10B22D11/064
Inventor H·马蒂J·巴贝
Owner SMS DEMAG AG