Products Description
High alumina brick is a mid-range refractory brick among refractory shaped products. It is a neutral refractory material and is used as the lining of industrial kilns.
Products Specifications
The quality of high alumina bricks is divided into different aluminum content and density. The fire resistance of high alumina bricks reaches 1790℃. Raw materials with different ingredients can also be added to produce different materials and composite refractory bricks. By adding a certain proportion of phosphoric acid and sintering at low temperature, phosphate bricks can be produced. By adding a certain proportion of silicon carbide and sintering at high temperature, phosphate bricks or silicon carbide bricks can be produced. By adding different proportions of andalusite and sillimanite, low-creep high-alumina bricks can be produced. These three types of refractory bricks also distinguish different grades and qualities of refractory bricks based on different contents and volume densities.
From the perspective of high alumina bricks alone, any aluminum content exceeding 48% can be called high alumina bricks. There are also high alumina bricks with different aluminum contents of 55%, 65%, 75%, 80%, and 85%, which can be used in different Used inside the furnace lining at high temperatures. However, high alumina bricks are not suitable for use in acidic or alkaline furnace linings. The composition of high alumina bricks is aluminum. The production technology is to add high alumina powder to high alumina particles in different proportions, and then form them under high pressure and sinter them at high temperature. High strength and good thermal shock stability.
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