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Mounting method for upper nozzle of tundish

An installation method and nozzle technology, applied in metal processing equipment, manufacturing tools, casting molten material containers, etc., can solve problems such as molten steel penetration, and achieve the effect of avoiding cracking and penetration

Pending Publication Date: 2022-04-22
SHOUGANG JINGTANG IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a method for installing the upper nozzle of the tundish, which solves or partially solves the technical problem in the prior art that molten steel permeates along the nozzle and between the seat bricks

Method used

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  • Mounting method for upper nozzle of tundish

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Embodiment Construction

[0019] see figure 1 , a method for installing an upper nozzle of a tundish provided in an embodiment of the present invention includes the following steps:

[0020] Step S1, coating chrome cement on the outer surface of the upper nozzle below the reduced diameter.

[0021] Step S2, set the seat brick on the upper nozzle, so that the upper nozzle enters the seat brick.

[0022] Step S3, filling drainage sand between the seat brick and the upper nozzle.

[0023] Step S4, laying heat insulating material on the drainage sand.

[0024] Specific embodiments of the application Since the chrome cement is coated on the outer surface of the upper nozzle below the variable diameter, the upper nozzle can be closely attached to the seat brick through the chrome cement to prevent molten steel from entering between the nozzle and the seat brick Since the seat brick is set on the upper nozzle, the upper nozzle enters the seat brick, so the upper nozzle is protected by the seat brick to avo...

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Abstract

The invention discloses a tundish upper nozzle mounting method, and belongs to the technical field of steelmaking continuous casting. The mounting method of the upper nozzle of the tundish comprises the following steps: coating chromium fireclay at the position below the variable diameter of the outer surface of the upper nozzle; the upper nozzle is sleeved with a brick cup, and the upper nozzle enters the brick cup; stuffing sand is filled between the seating brick and the upper nozzle; and a heat insulation material is laid on the stuffing sand. According to the tundish upper nozzle mounting method, molten steel can be effectively prevented from entering the gap between the nozzle and the brick cup, and permeation is avoided.

Description

technical field [0001] The invention relates to the technical field of steelmaking and continuous casting, in particular to a method for installing an upper nozzle of a tundish. Background technique [0002] In the 1950s, the continuous casting technology, which is the symbol of the iron and steel industry revolution, was developed, which is characterized by fast process speed, concentrated investment and increasingly perfect technology. Compared with traditional die casting, continuous casting has the advantages of increasing metal yield and reducing energy consumption. The realization of full continuous casting simplifies the steelmaking production process, shortens the process and significantly improves production efficiency. [0003] The tundish is the intermediate link of the steelmaking production process, and the connection point from intermittent operation to continuous operation. A tundish is generally composed of a tundish body, a cover, a nozzle, and a flow cont...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D41/50B22D41/56B22D41/02
CPCB22D41/50B22D41/56B22D41/02
Inventor 尚明洋黄财德赵长亮袁天祥杨晓山张启东何文远杨春宝王宝动王洪胜边可萌魏丽
Owner SHOUGANG JINGTANG IRON & STEEL CO LTD