High Alumina Sillimanite Fire Brick for Glass

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1.Resistance to corrosion and erosion;
2.Least contamination for molten glass;
3.Improve the productivityaa
4.Long life

Features:

The sillimanite brick is made of sillimanite minerals.After high temperature calcination,it become mullite and

dissociate silicon dioxide.Generally use high-temperature firing method and slurry casting method to produce.

1.Good thermal stability.

2.Strong resistance to chemical attack.

3.It is the first choice of stable material for glass forming.

Applications:

1.Widely used in glass furnace,such as regenerator arch.

2.Mainly used in the blast furnace.

Sillimanite brick physiochemical index:

Item	Properties
	Sillimanite		Andalusite		Cordierite and mullite		Pouring sillimanite
	LS-65	L-60	H-60	HS-55	SPCD-50	SPCD-60	CS-58
AL2O3(%)	65	60	60	55	50	60	58
Fe2O3(%)							0.8
Refractoriness,°C	1790	1790	1790	1770	1770	1790	1790
Apparent porosity %	22	22	22	22	24	24	26
Cold Crushing strength MPa	50	50	40	40	40	50	50
Bulk density,g/cm3	2.2	2.2	2.5-2.7	2.5-2.7	2.4	2.4	2.2
Softening temperature under load,KD°C≥	1550	1500	1500	1450	1450	1500	1450
Permanent linear change,%(°C×h)	±0.2	±0.2	±0.2	±0.2	(1000°C)≤±0.5%	(1000°C)≤±0.5%	1400°C×2h +0.1 -0.3
Application	Used for temperature change severe industrial furnace and thermal lining equipment				All sorts of kiln burner brick and ceramic kiln brick		All industrial furnace

Q:How to distinguish the good or bad of the high aluminum brick?: In the procurement of high alumina brick, the first color, high quality aluminum brick, brick surface smooth, yellow color pale, four sides equal, no broken angle, no cracks.

Q:What refractory material does cupola lining use?: A class of inorganic nonmetallic materials with a refractoriness of not less than 1580 degrees. Refractoriness is defined as the temperature of a sample of a refractory cone sample that resists high temperature without loading and does not soften and melt down. But only in terms of fire resistance can not be fully described refractories, 1580 degrees of temperature is not absolute.

Q:What is the standard size of high alumina brick?: The country has laid down a number of criteria for the use of refractory bricks to unify market demand.

Q:What is the difference between corundum and high alumina??: The main components of high alumina brick are high alumina bauxite, mullite and partial corundum sand.

Q:Aluminum content 38, silicon content 55 What refractory bricks?: Semisilica brick: the content of Al2O3 is 15% ~ 30% of aluminium silicate refractory products. Manufacturing products are semi silica quartz containing impurities or native clay kaolin, refractory clay or kaolin beneficiation tailings and the pyrophyllite

Q:How to reduce the harm caused by two times mullite in high alumina refractory material: Prolong the sintering time and adjust the aluminum content of the high alumina brick.

Q:What are the specifications for bricks?: Thecompressive node as a new type of building energy-saving wall materials, which can be used for masonry walls, but also has good thermal properties, in line with the construction of the building module, reduce the loss in the process of construction, improve work efficiency; the hole rate reached more than 35%, can reduce the weight of the wall, save the foundation engineering cost. Compared with common sintered porous brick, it has the characteristics of heat preservation, heat insulation, light weight, high strength and high construction efficiency. The product is made of shale as raw material. It is produced by high vacuum extrusion molding machine and one yard firing process

Q:What are the high temperature refractory mortars made of?: Products used in metallurgy, building materials, machinery, chemical, power industry, industrial thermal furnace, for masonryBuilding clay brick, high alumina brick and corundum brick have the characteristics of full grey seam, good airtightness, high bonding strength, high temperature performance and suitable construction time

Q:Are there any differences between insulating bricks and refractory bricks?: Heat preservation brick is to emphasize its heat preservation performance generally, not paying much attention to its refractoriness, but refractory brick is exactly the opposite. Different locations will use different materials, I hope we can choose carefully.

Q:What is the heat preservation material used in a laboratory furnace?: Asbestos, high alumina brick, or carbonized silicon are often used.Thermal insulation materials are generally used to guide heat coefficient less than or equal to 0.2 of the material. Thermal insulation material development is very fast, and in industry and building the use of good insulation technology and materials, often can get twice the result with half the effort. Each ton of mineral cotton insulation used in the building saves one ton of oil a year.

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