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Work layer coating of steel casting tundish

A tundish and working layer technology, applied in the field of working layer coatings, can solve the problems of short service life, flexural resistance, compressive strength and high temperature performance of the tundish, which cannot effectively meet the requirements of the tundish, and achieve the ability to resist molten steel erosion , high-temperature performance, and the effect of increasing the flexural and compressive strength

Active Publication Date: 2010-12-22
德清凯瑞高温材料股份有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Existing tundish working layer coatings usually use magnesium coatings, but the existing magnesium coatings with different raw materials and different proportions cannot effectively meet the requirements of the tundish in terms of flexural resistance, compressive strength and high temperature performance. requirements, resulting in a short service life of the tundish

Method used

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  • Work layer coating of steel casting tundish
  • Work layer coating of steel casting tundish

Examples

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Embodiment 1

[0021] The working layer paint of the iron and steel foundry tundish described in this embodiment, it is made up of following raw material proportioning by weight:

[0022] Forsterite 64 parts;

[0023] 31.5 parts of sintered magnesia;

[0024] 2.5 parts of silica powder;

[0025] 1 part paper fiber;

[0026] 0.5 part of sodium tripolyphosphate;

[0027] 0.3 parts of yellow dextrin;

[0028] 0.2 parts of white mud;

[0029] Explosion-proof fiber 0.01 parts;

[0030] 0.0013 parts of sodium dodecylsulfonate;

[0031] Aluminum powder 0.001 parts.

[0032] The production process of the coating for the working layer of the iron and steel casting tundish described in this embodiment is: after weighing each raw material according to the above ratio, first mix forsterite and sintered magnesia in a planetary mixer for 7 minutes, and then mix the The remaining substances were added into a planetary mixer and mixed for 5 minutes to obtain a finished coating, which was weighed and...

Embodiment 2

[0037] In the coating for the working layer of the iron and steel casting tundish described in this embodiment, the sintered magnesia is 180 mesh 92 sintered magnesia;

[0038] The performance (actual measurement) of the working layer coating of the iron and steel foundry tundish described in this embodiment is as follows:

[0039]

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Abstract

The invention discloses a work layer coating of a steel casting tundish, which comprises the following raw materials in weight parts by proportion: 64 parts of forsterite, 31.5 parts of sintered magnesite, 2.5 parts of silicon micro-powder, 1 part of paper fiber, 0.5 part of sodium tripolyphosphate, 0.3 part of canary dextrin, 0.2 part of white mud, 0.01 part of anti-explosion fiber, 0.0013 part of sodium dodecyl sulfate and 0.001 part of aluminum powder. The work layer coating of the steel casting tundish, obtained in the invention, has enhanced folding and compressive strength and good high-temperature usability, and when applied to the tundish, the invention can achieve the effects of good smearing property, no phenomena of back-falling, flowing, bubbling, no phenomena of bursting and peeling during roasting, good corrosion resistance to alkali covering agent, strong molten steel flushing resistance, no deterioration of wrapping wall, and no pollution to the molten steel, thereby effectively meeting the working requirements on the rtundish and prolonging the service life.

Description

technical field [0001] The invention relates to a magnesium paint, in particular to a working layer paint for a steel casting tundish. Background technique [0002] With the rapid development of new smelting technology and new continuous casting process, the requirements for refractory materials are becoming more and more stringent, so that coatings for continuous casting tundishes are getting more and more attention, and they are also facing unprecedented challenges. The tundish is a device used for the transition of molten steel between the ladle and the mold. It is responsible for the diversion, rectification and storage of molten steel from the ladle to the mold. The working temperature is high and it bears a strong impact. Therefore , the working layer coating of the iron and steel casting tundish needs good flexural and compressive strength and high temperature performance. [0003] Existing tundish working layer coatings usually use magnesium coatings, but the existi...

Claims

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Application Information

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IPC IPC(8): C04B35/66
Inventor 傅水明
Owner 德清凯瑞高温材料股份有限公司
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