Silica Bricks for Industrial Glass Furnaces

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Specifications

It is the ideal materials , glass smelting furnace and other industrial thermal kilns.

The products are possessed of the following characteristics: stable quality, small overall dimension tolerance, high softening temperature by loading, small true density, few quartz residue, etc. It wins appreciation and compliments from the customers as home and abroad. Through the examination of the refractory material quality inspecting center of state, the physical and chemical index of this product reaches or surpasses international standard; this product has passed ISO9000 quality system authentication. It is the ideal materials , glass smelting furnace and other industrial thermal kilns.

Technical data

Silica brick for glass furnace
Item:		GF-96A		GF-96B	GF-95A		GF-95B
SiO 2		≥96		≥96	≥95		≥95
Fe 2 O 3		≤0.8		≤1.0	≤1.2		≤1.2
Apparent porosity %		≤22(24)
Cold Crushing Strength MPa	Brick below20KG	≥35(30)
	Brick ≥20KG	≥30(25)
Refractoriness under load ºC		≥1680		≥1670	≥1660		≥1650
True density g/cm ³		≤2.34		≤2.34	≤2.35		≤2.35
Silica brick for coke oven
Item:			CO-94A			CO-94B
SiO2: %			≥94			≥94
Al 2 O 3 : %			≤ 1.5			≤ 1.5
Fe2O3: %			≤ 1.5			≤ 1.5
Refractoriness under load 0.2Mpa			≥ 1650ºC			≥ 1650ºC
Apparent porosity: %			≤ 22			≤ 24
Bulk density: g/cm ³			≤ 2.34			≤ 2.35
Cold crushing strength: MPa			≥30			≥25
Permanent linear change % (1450ºC ×2h)			0~0.2			0~0.2
Thermal expansion(1000ºC)			≤1.28			≤1.30
Silica brick for hot blast furnace

Glass Industrial Silica Bricks

Q:Semisilica brick, clay brick, high alumina brick and what is the difference?: This is a kind of refractory material is divided into three types: semisilica brick (A12O315 ~ 30%), clay brick (A12O330 ~ 48%), high aluminum brick (A12O3>48%).

Q:Which material is good for furnace refractory?: Basic refractories in Magnesium Oxide and calcium oxide as the main ingredient, commonly used is brick. Magnesium Oxide 80% to more than 85% containing magnesia brick, has good resistance to alkaline slag and slag, refractory clay brick and brick high ratio. Mainly used in open hearth furnace, oxygen converter, electric furnace, non-ferrous metal smelting equipment and high temperature equipment.

Q:What role does silica play in refractories?: The natural mineral of silica is called quartz. In refractories, silica and siliceous refractory materials contain more silica. Silica is acidic at high temperature, and siliceous refractory can resist acid slag corrosion

Q:Why is the three oxidation of two silicon is very harmful impurities in silica brick: Can generate the material needs is the best way to see the impurity problem!! the first consideration is whether can get the material impurities with what method choice after the time! Miscellaneous reactions cannot have new impurity formation! Selected cannot and need material reaction reagent!

Q:Such purpose and scope please give me detailed points thank you: Mainly used for coke oven carbonization chamber and the combustion chamber wall, open hearth furnace regenerator and a sediment chamber, soaking furnace, glass furnace, refractory materials and ceramic brick kiln, kiln vault and other load-bearing parts. Also used for high temperature bearing part of hot blast stove and acid open hearth furnace.

Q:Physical solid waste disposal: The production of silicon material is added to the cause of waste brick:Preparation of silica brick pug, a certain amount of waste silica brick used to add ingredients, for the purpose of expansion and stress reduction products during firing

Q:The chemical composition of silica brick and its physicochemical index?: Brick refers to the refractory products in more than 93% of the content of SiO2

Q:High temperature refractory material?: Basic refractories in Magnesium Oxide and calcium oxide as the main component, the main products are magnesia brick, magnesia chrome brick, magnesia zirconia brick, magnesia brick, magnesia spinel brick, magnesia calcium brick, dolomite brick and the latest development of magnesia spinel brick and so on. With Magnesium Oxide (MgO) more than 80% of the refractory brick called magnesia brick,

Q:The hot blast stove when the temperature did not rise against the brick interface decreased: Insulation of hot blast stove, key insulation silica brick hot stove, hot blast stove is shutdown or need repairing in blast furnace.

Q:Semisilica brick interpretation: Good thermal shock resistance. In use, more high viscosity glass phase can be formed, and the masonry brick joint and the working surface are dense and the masonry is complete, which is beneficial to improve the impermeability of the masonry and reduce the erosion effect of the slag on the masonry.

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