Silica Refractory Fire Brick For Glass Melting Furnace Crown

Features

1.Good thermal conductivity

2.High refractoriness under load

3.Good creep resistance 

4.Refractoriness can be up to 1700℃

Applications 

Silica brick is made of quartz stone material, the content of SiO2 is above 94%. It has good acid slag resistance and good heat conductivity. The refractoriness is 1690~1710 °C.Refractoriness under load temperature is beyond 1620°C.

SiO2 has different types of crystals in different temperatures and the transform between the crystals will cause the change of the bulk. So there is a close contact between the changes of SiO2 crystals and the  produce, performance and usage of silica bricks. During the heating, there will be changes of the bulk and cristobalite changes most, then quartz, phosphorus quartz is the slowest of all and it also has good heat-conductivity.Coke oven should use the silica brick with small true density. And the phosphorus quartz is better than others.

Silica brick is mainly used to build  the doghouse crown, suspended wall of channel, regenerator chamber,  top crown 

and inlet sealing of glass furnaces. It's also widely used in coke oven, hot blast furnace. In metallurgy industry, 

it is adopted as the nozzle brick.

Physical properties and chemical composition

Trading Process

 Brief Introduction of Sunrise

Zhengzhou Sunrise Refractory Co., Ltd.is an integrated company of production and technology development.

We are mainly engaged in the research and development of refractory materials.Our business mainly involves

in production of fused cast AZS 33, 36, 41, fused cast α-β alumina, fused cast high zirconia block,

fused cast skid rail block, glass mould brick, yttrium stabilized zirconia brick, magnesia series brick, zircon brick, zircon mullite brick, mullite brick, sillimanite brick, fused  corundum brick, high chrome brick

series brick, chrome corundum brick, chrome AZS block, silicon carbide brick,silica brick, fireclay series 

brick, high alumina series brick, insulation series brick, fiber products, magnesium silicon insulation board, etc. 

Our products are widely used in industries of glass, petrochemistry, metallurgy, sapphire crystal furnace, building materials, etc. The products of our company are sold in markets of Europe, America, Middle East, Korea and Southeast Asia. We have established business and cooperation relationship with many customers

in different countries and regions.Our company has passed ISO9001:2000 Quality  Management Systems Certification.