Corundum high-strength wear-resistant pouring material

By using sintered corundum aggregate and a variety of auxiliary materials, bonding agents and additives in corundum high-strength wear-resistant casting materials, the problem of insufficient refractory performance of the material in extremely high temperature environments and weaker ability to quench cold and heat, achieving higher refractory and thermal shock resistance, and extending service life.

CN119707460AInactive Publication Date: 2025-03-28JIANGSU SHUNXING REFRACTORY TECH
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Patent Information

Application Number
CN202411957281.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-30
Publication Date
2025-03-28
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

The existing corundum high-strength wear-resistant casting materials have limited fire resistance in extreme high temperature environments and have weak ability to quench cold and heat, which may lead to cracking or peeling of the material, reducing the use effect and life.

Method used

Based on sintered corundum aggregate, combined with corundum fine powder, mullite fine powder, inorganic non-metallic materials and stainless steel fibers, calcium alumina cement, hydrated alumina, silica sol, aluminum dihydrogen phosphate and refractory clay, additives such as sintered spinel fine powder, silica fine powder, activated alumina fine powder and zirconium oxide fine powder are added to adjust the fluidity and plasticity of the casting material through a specific stirring process.

Benefits of technology

It significantly improves the refractory and thermal shock resistance of the casting material, prevents the material from cracking or peeling in high temperature environments, extends the service life of the product, and enhances its stability under extreme temperature conditions.

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Abstract

The invention discloses a corundum high-strength wear-resistant castable, which belongs to the field of castable, and comprises a raw material, an auxiliary material, a binding agent and an additive, the raw material is corundum aggregate, and the auxiliary material comprises corundum fine powder, mullite fine powder, an inorganic non-metallic material and stainless steel fiber, the binding agent comprises calcium aluminate cement, hydrated alumina, silica sol, aluminum dihydrogen phosphate and refractory clay, and the additives comprise sintered spinel fine powder, silica micropowder, activated alumina micropowder, zirconia micropowder, a coagulant, a retarder, a dispersant, a flocculant, a plasticizer, a water-retaining agent, an anti-settling agent and a preservative. The corundum high-strength wear-resistant castable is prepared by mixing the raw materials, the auxiliary materials, the binding agent and the additive, so that the corundum high-strength wear-resistant castable has excellent strength, wear resistance, fire resistance and thermal shock resistance during use, and further the actual use effect and performance of the corundum high-strength wear-resistant castable are ensured; and the service life of the product is prolonged.
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