Low-cost magnesium-silicon based castable for tundish prefabricated component and preparation method thereof

A tundish and low-cost technology, applied in the field of refractory materials, can solve the problems of low yield, unstable performance and high product price, and achieve the effects of lower cost and price, stable performance and improved slag resistance
CN103553656BActive Publication Date: 2014-12-10SHANGHAI LIER REFRACTORY MATERIAL
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHANGHAI LIER REFRACTORY MATERIAL
Publication Date
2014-12-10
Patent Text Reader

Abstract

The invention relates to a low-cost magnesium-silicon based castable for a tundish prefabricated component and a preparation method thereof. According to the invention, magnesium olivine sand, magnesia, silica powder, silicon carbide, sodium tripolyphosphate, sodium hexametaphosphate and organic fiber are used as raw materials. High content of the magnesium olivine sand raw-material is adopted, thus reducing the dosage of magnesia. The price of the magnesium olivine sand raw-material is low and is only 1 / 3-1 / 2 of the price of magnesia. Therefore, the cost of the castable product is reduced greatly. In addition, when the dosage of magnesium olivine sand and magnesia is adjusted, granularity of the raw materials magnesium olivine sand and magnesia is changed. Thus, a tundish prefabricated component prepared from the castable still can be endowed with advantages of high strength, anti-explosion performance and the like.
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Description

technical field

[0001] The invention relates to the technical field of refractory materials, in particular to a casting material for a low-cost magnesium-silicon tundish prefabricated part and a preparation method thereof. Background technique

[0002] With the downturn of the entire steelmaking industry in recent years, especially since 2011, the pressure of refractory market competition is increasing, and the profit margin of products is gradually shrinking. The survival of refractory manufacturers has been severely challenged. At present, many of the tundish prefabricated parts produced by domestic refractory manufacturers still use high-cost high-alumina, corundum and aluminum-magnesium prefabricated parts. With the increase in demand for clean steel, the transformation of tundish prefabricated parts to alkaline materials has been promoted. Magnesium prefabricated parts have been greatly developed in recent years, and have certain advantages in price. However, with the...

Claims

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