Magnesium current stabilizer for tundish and preparation method thereof

A current stabilizer and tundish technology, applied in the field of refractory materials, can solve the problems of low cost and short cycle, and achieve the effects of reducing production cycle, improving labor efficiency, and reducing the hydration rate of magnesia

Active Publication Date: 2022-06-28
WUGANG REFRACTORY CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to solve the above problems, the object of the present invention is to provide a method for preparing a magnesium flow stabilizer for tundish. The prepared magnesium flow stabilizer is not only less prone to cracking, but also has better strength and resistance to molten steel erosion , and the preparation method has the characteristics of low cost and short cycle

Method used

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  • Magnesium current stabilizer for tundish and preparation method thereof
  • Magnesium current stabilizer for tundish and preparation method thereof
  • Magnesium current stabilizer for tundish and preparation method thereof

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Embodiment 1～11

[0031] A preparation method of a magnesium flow stabilizer for a tundish, comprising the steps:

[0032] S1: accurately weigh each component according to the formula of Table 1 and Table 2;

[0033] S2: Mix the components and stir them evenly; the specific mixing sequence is as follows: first, mix the regenerated magnesium raw material and forsterite, and stir them evenly, then add the binder and dispersant and stir them evenly to make a mixture, and then add the mixture to the mixture. Add fused magnesia fine powder, activated alumina micropowder, explosion-proof agent, stainless steel fiber, stir evenly, and finally add water and stir evenly.

[0034] S3: Pouring vibration molding in the mold;

[0035] S4: Conditioning with mold: Combined with Table 3, the mold is cured at 20-50°C for 10-12 hours and then demolded;

[0036] S5: Drying: Combining with Table 3, after demoulding, without natural curing, immediately enter the electric drying kiln to dry, the maximum drying tem...

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Abstract

The invention relates to the field of refractory materials, in particular to a magnesium current stabilizer for a tundish and a preparation method thereof. A magnesium current stabilizer for tundish designed by the present invention is characterized in that it is prepared from main raw materials, dispersant, explosion-proof agent, stainless steel fiber and water, and the main raw materials include recycled magnesium raw materials 10% by weight percentage ~60%, forsterite particles 15~45%, fused magnesia fine powder 10~40%, activated alumina micropowder 3~8%, binder 1~5%; by weight percentage, dispersant accounts for the main raw material 0.1-0.5% of the main raw material, anti-explosion agent accounts for 0.1-0.5% of the main raw material, stainless steel fiber accounts for 0.5-1.5% of the main raw material, and water accounts for 4-5.5% of the main raw material; the magnesium flow stabilizer prepared by the present invention is not only difficult Cracking occurs, and has good strength and molten steel erosion resistance, and the preparation method has the characteristics of low cost and short cycle.

Description

technical field [0001] The invention relates to the field of refractory materials, in particular to a magnesium flow stabilizer for a tundish and a preparation method thereof. Background technique [0002] As an important part of the tundish to undertake the molten steel, the flow stabilizer can not only effectively reduce the erosion and erosion of the refractory material in the impact area of ​​the tundish by the molten steel, but also effectively improve the flow of the molten steel and reduce the temperature difference in the area near the water outlet. , prolong the residence time of molten steel in the tundish, promote the full floating and removal of non-metallic inclusions in the steel, and effectively improve the quality of molten steel. [0003] According to the material, the flow stabilizer can usually be divided into high aluminum, magnesium carbon, and magnesium. In the actual use process, the high aluminum and magnesium carbon flow stabilizers are not resistant...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/043B22D41/02B22D41/00C04B35/66
CPCC04B35/043B22D41/00B22D41/02C04B2235/3217C04B2235/447C04B2235/5212C04B2235/5216
Inventor 周芬高永生郑吉红王艳龙晏强
Owner WUGANG REFRACTORY CO LTD
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