High alumina bricks are silicate alumina refractory bricks with an Al ₂ O Ⅲ content greater than 48%. The production process is similar to clay refractory bricks. According to the different grades of bauxite clinker used, different quality requirements, and the selection of formulation binders, appropriate proportions are distributed and molded using a brick press and then calcined.

High alumina bricks belong to neutral refractory materials, which have good resistance to acid, alkali slag, metal liquid erosion, oxidation, reduction reactivity, etcHigh thermal stability and fire resistance of 1770Characteristics such as temperature above ℃ and good slag resistance.

Our company produces high alumina bricks using GL-70 rotary kiln raw materials that have been well calcined, with a bulk density of over 3g/cm ³, a water absorption rate of less than 5%, and a high sintering temperature, Na₂O、K₂The advantages of low O content and the addition of an appropriate amount of mullite to strengthen the matrix, as well as the high-temperature volume effect of refractory minerals, are achieved, resulting in high load softening temperature, high high-temperature flexural strength, and low thermal expansion rate of the product.

Application fields of high alumina bricks: mostly suitable for blast furnaces, hot blast stoves, electric furnaces, blast furnaces, coke ovensEqualizing furnaceHeating furnaceOff road refining furnaceRotary kilnAnd various industrial kiln linings, flues, smoke chambers, etc.

The T3 size of the high alumina refractory brick standard brick is 230 * 114 * 65mm.

Customized processing of irregular high alumina refractory bricks can be done according to the provided drawings

Korei Refractory produces a variety of refractory products with complete specifications, and can customize and process various shaped bricks according to demand to meet the working conditions of various high-temperature kilns.

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