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Tundish breathable water inlet used for metal continuous casting plate blank and preparation method thereof

A tundish and slab technology, applied in the field of refractory melt conveying parts, can solve the problems of difficult to meet the casting process requirements, complex molding process, high manufacturing cost, etc., to improve the life of a single tundish, ensure the quality of the slab, and avoid The effect of nodulation blockage

Active Publication Date: 2010-05-12
山东东耐高温材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In recent years, multi-furnace continuous casting, high-speed casting advanced casting technology, for the prevention of air inhalation and alumina clogging at the upper nozzle of the tundish, thermal shock resistance, corrosion resistance, wear resistance, high-strength mechanical properties, etc. High requirements have been put forward, and the products in the existing technology are difficult to meet the requirements of the new casting process
In addition, the molding process is more complicated and the manufacturing cost is higher

Method used

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  • Tundish breathable water inlet used for metal continuous casting plate blank and preparation method thereof
  • Tundish breathable water inlet used for metal continuous casting plate blank and preparation method thereof
  • Tundish breathable water inlet used for metal continuous casting plate blank and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0077] a. Ingredients mixing:

[0078] Topping ingredient mix:

[0079] Accurately weigh 6 parts by weight of graphite, 24 parts of high alumina bauxite # 20 parts by weight, high alumina bauxite 36 # 45 parts by weight, brown corundum 150 # 25 parts by weight, 2 parts by weight of silicon carbide powder, and 2 parts by weight of metal silicon powder, put into the surface layer material high-speed mixer, add a spraying type to add a binder, mix evenly at a high speed, and set aside;

[0080] Mixing of breathable material ingredients:

[0081] Accurately weigh 6 parts by weight of graphite, 24 parts of tabular corundum # 25 parts by weight, tabular alumina 36 # 30 parts by weight, tabular alumina 180 # 21 parts by weight, 3 parts by weight of metal silicon powder, 2 parts by weight of metal aluminum powder, 8 parts by weight of alumina powder, and 5 parts by weight of magnesium aluminum spinel are put into the high-speed mixing machine for air-permeable materials, and the...

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Abstract

The invention relates to a tundish breathable water inlet used for the metal continuous casting plate blank and a preparation method thereof, belonging to the metal casting molten material conveying part. A surface material and a breathable material which are composite flame-resistant materials are adopted, the inner core material, bowl material and flat interface material all adopts the breathable material, and the surface material and the breathable material are separately made from flame-resistant materials with different components and different proportions, wherein the outer skin (surface) material which mainly used brown aluminium oxide before now mainly adopts bauxite with lower price than that of brown aluminium oxide so as to reduce the cost. The tundish breathable water inlet of the invention can be used to solve the problem that the tundish breathable water inlet used for the metal continuous casting plate blank has complicated forming technology, various varieties of materials, short service life of products, low mechanical strength and high production cost.

Description

technical field [0001] The invention relates to a tundish air-ventilating upper nozzle for metal continuous casting slabs and a manufacturing method thereof, which belongs to metal casting melt conveying parts, and particularly relates to a refractory nozzle installed at the bottom of the tundish connected with a submerged nozzle in a metal continuous casting device. Material melt delivery components. Background technique [0002] The tundish venting upper nozzle for metal continuous casting slab is a disposable refractory component used for continuous casting. The upper nozzle is installed at the bottom of the ladle and the tundish, and the lower part is connected with the submerged nozzle. During use, a certain pressure of argon gas is passed to the upper nozzle, and the micro-bubbles of the argon gas carry impurities such as aluminum oxide in the molten steel to float up to prevent the deposition of non-metallic impurities, thereby ensuring the smooth progress of continuo...

Claims

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Application Information

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IPC IPC(8): B22D41/50B22D41/54
Inventor 秦延忠
Owner 山东东耐高温材料股份有限公司
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