Silica Brick for Glass Kiln

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1.Silica brick manufature.
2.High refractoriness under load.
3.High heat conductivity.
4.Good thermal shock resistance

Quick Details

The silica bricks for HBS Silica fire brick for coke oven High density silica fire brick Semi-silics fire brick for coke oven

1.Silica brick manufature. 2.High refractoriness under load. 3.High heat conductivity. 4.Good thermal shock resistance.

Tech 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
Item	HBF-95
SiO2	≥ 95
Al2O3	≤ 1.0
Fe2O3	≤1.3
Apparent porosity %	≤22(24)
Cold crushing strength MPa	≥45(35)
Remaining quarts %	≤1.0
Refractoriness under load ºC	≥1650
Creep(0.2Mpa ×1550ºC×50h) %	≤0.8
Thermal expansion coefficient (1000ºC) %	≤1.25
Apparent density g/cm ³	≤2.32

Q: The introduction of silica brick: Acidic silica brick refractory material, has good acid resistance and slag erosion, softening temperature is as high as 1640 to 1670 DEG C, in the long-term use volume is relatively stable under high temperature.

Q: Physical solid waste disposal: Reduce crack production and improve yield. The amount of addition is related to the shape and weight of the brick. The bricks can be added to 20% weight less than 25kg; bricks above 25kg can be added to 30%; for the specific type of brick can be added 30%. into waste silica brick should pay attention to this problem

Q: The introduction of silica brick: An acid refractory consisting mainly of quartz and square quartz and a small amount of residual quartz and glass.More than 94% silica content. True density 2.35g/cm3. With acid resistance, slag erosion performance. Higher high temperature strength. The softening start temperature is 1620~1670 degrees. Long term use at high temperature without deformation. The thermal shock resistance is low (the heat exchange in water is 1~4 times). The natural silica is used as the raw material, and a proper amount of mineralizer is used to promote the transformation of quartz into quartz in the body. Slowly sintered at 1350~1430 DEG C in the reducing atmosphere. When heating up to 1450 degrees, the total volume of 1.5~2.2% expands, and the residual expansion can close the kerf and ensure the airtight and structural strength of the masonry.

Q: The difference between clay refractory bricks and refractory brick in the application.: Clay brick features good thermal shock resistance and low price, but high temperature performance is not well integrated, and the long-term use temperature is not higher than 1300 degrees. It is widely used in low temperature parts of various kilns.

Q: How much is the highest melting point of silicon?: Mainly used for partition, carbonization chamber of coke oven and combustion chamber open hearth furnace regenerator and a sediment chamber, soaking furnace, glass melting furnace refractories and ceramic 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: Glass kiln brick for physical and chemical indicators?: Glass kiln with high quality silica brick with silicon oxide content, low melt index, mainly used for glass kiln crown, parapet, wall hanging, small furnace arch superstructure and regenerator.

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: 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: Can not use it two brick: Acidic silica brick refractory material, has good ability in acid slag erosion

Q: The chemical composition of silica brick and its physicochemical index?: ????Al2O3 SiO2??????fe2o3??????cao???????r2o93～98?0.5～2.5?；；?0.3～2.5??0.2～2.7；??1～1.5；

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