Silica brick of light weight

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Loading Port:
Qingdao
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TT OR LC
Min Order Qty:
100 PCS
Supply Capability:
50000 PCS/month

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Packaging & Delivery

Packaging Detail:wooden pallet
Delivery Detail:20days after receiving the advance

 

Specifications

Light Weight Silica Brick 
1. High refractoriness 
2.High porosity 
3.Good thermal shock stability 
4.Best price, high quality

Brief description

1. High refractoriness

2.high porosity

3.good thermal shock stability

 

Main Technical Property Indexes

 

Item

SiO2≥

91

Refractoriness℃

1670

RUL(0.2MPa)0.2MPa

1560

Apparent Porosity%≤

45

CCS Mpa≥

3.5

Density g/cm3≤

1.2

 

Typical Application

        Lightweight silica brick is mainly used for thermal insulation or reduce weight without direct contact with molten material, gas is not subject to erosion, don't suffer from temperature leaps kiln parts. Use at high temperatures, can not contact with alkaline refractory materials. According to the material is qualitative different, its highest use temperature at 1200 ~ 1550 ℃.

Advantage of Light Weight Silica Brick

 

Lightweight silica brick is lightweight refractory with silicon dioxide more than 91%, the volume density of 1.2 g/cm3 .Refractoriness and refractoriness under load and the composition of the same common silica brick. But due to the porosity, so the compression strength and slag resistance, corrosion resistance and other than ordinary silica brick, and thermal shock resistance is improved.

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Q:The difference between clay refractory bricks and refractory brick in the application??
Brick bearing soft temperature and close to the melting point, high temperature strength, can be in high temperature (above 1400 degrees) under the condition of long-term use,
Q:Why in the production of the brick to detect the volume density
Product quality control of silica brick.
Q:Can iron oxide be used as refractory material?
Iron oxide can not be used as refractory material, but it can be used as refractory additive. Iron oxide can be used as pigment
Q:What are the materials for refractory materials? What are their names?
The main raw material is the main body of refractory. Auxiliary raw materials can be divided into binders and additives. The role of bonding agent is to make the refractory body in the production and use process has enough strength. There are commonly used lignin, phenolic resin, asphalt, cement, water glass, phosphoric acid and phosphate, sulfate, some main raw material itself has the effect of binder, such as clay; additive is to improve the production of refractory materials and construction technology, or strengthen the refractory material of some properties, such as stabilizer, water reducing agent, inhibitor, plasticizer, foaming agent, dispersing agent, bulking agent, antioxidant.
Q:The production of brick, the ingredients of why join the waste brick?
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:Why will expand when heated brick
Because the production of raw materials are silica brick, brick with SiO2 content of not less than 95% of silica as raw materials, adding mineralizer and binder, through mixing, molding, drying, sintering and other processes in the system
Q:How to improve the thermal conductivity of the coke silicabrick rate?
To improve the thermal conductivity of silica brick for coke oven rate method:Manufacture of high density and high thermal conductivity of silica brick, adding additives such as CuO, Cu2O, TiO2, Fe2O3, (FeO), can improve the thermal conductivity of silica brick.
Q:Which material is good for furnace refractory?
Acid refractory with silicon oxide as the main component, are commonly used in brick and clay brick. Silica is silica containing more than 94% silica products, raw materials used in silica, silica and other waste, the acid resistance of slag erosion ability, high load softening temperature, volume shrinkage after repeated burning, or even a slight expansion; but it is vulnerable to the erosion of basic slag, thermal shock resistance is poor. The brick is mainly used for thermal equipment of glass furnace, coke oven, acid furnace etc.. Clay brick with refractory clay as the main raw material, containing 30% to 46% of alumina, weak acid refractory material, heat shock resistance, resistance to acid slag, widely used.
Q:Can not use it two brick
The softening temperature is up to 1640~1670 DEG C, and the volume is stable at high temperature for a long time.
Q:What role does silica play in refractories?
Low fractory refers to the alumina content between 10%~30%, SiO2 content is less than 85%, semisilica brick SiO2 = 65%,The SiO2 content of not less than 93%, refractory material to natural quartz rock as the main raw materials are called silica, silica brick, silica brick, quartz glass and special products. China's literature generally put this type of product is called "siliceous refractory products", which is the most important brick.

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