High quality High Aluminum Brick for glass furnace

High alumina bricks are aluminum silicate neutral refractory materials with aluminum oxide (Al2O3) content higher than 48%. It is made of alumina or other raw materials with high alumina content through molding and calcination. The refractoriness of high-alumina bricks is higher than that of clay bricks and semi-silicon bricks, up to 1750 ~ 1790 ℃, which belongs to advanced refractory materials. Because high Al2O3 in high-aluminum products has less impurities and less fusible glass body, the load softening temperature is higher than that of clay bricks, but because mullite crystals do not form a network structure, the load softening temperature is still not as high as that of silica bricks. High alumina bricks have more Al2O3, which is close to neutral refractories, and can resist the erosion of acid slag and alkaline slag. Because it contains SiO2, the resistance to alkaline slag is weaker than that of acid slag. High-alumina bricks are used for lining steel-making electric furnaces, glass melting furnaces, cement rotary furnaces, etc.

As a professional zircon bricks manufacturer, we have exported different zircon refractory bricks to more than 30 countries. Please kindly read the following more information and makeInquiry.Scope of application:

lHigh Alumina bricks is mainly usedfor liningofglass melting furnace.

Advantage:

lHigh-alumina bricks have a high refractoriness, up to 1750 ~ 1790 ℃, which is a high-performance refractory material. Generally, refractory bricks with higher alumina content have better fire resistance.

lHigh load softening temperature

lHigh aluminum brick has very good thermal conductivity

lBetter thermal shock stability

lHas excellent resistance to acid and alkaline slag

lLong using life

Technical Data:

Item		Index
		LZ-80	LZ-75	LZ-65	LZ-55	LZ-48
Al2O3 ,%		80	≥75	≥65	≥55	≥48
Refractoriness °C		≥1790	≥1790	≥1790	≥1770	≥1750
Bulk density,g/cm3
Softening temperature under load		1530	≥1520	≥1500	≥1470	≥1420
Permanent linear change,%	1500°CX2H	+0.1 -0.4	+0.1 -0.4	+0.1 -0.4	+0.1 -0.4
	1450°CX2H					+0.1 -0.4
Apparent porosity,%		22	≤23	≤23	≤22	≤22
Cold Crushing strength Mpa		55	≥50	≥45	≥40	≥35
Application		All industrial furnace

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