Category Archives: Silica Bricks Series

Jun 30, 2021

Silica Brick

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 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 silica brick with small true density. And the phosphorus quartz is better than others.

Application For Silica Brick

Mainly used in the construction of regenerative chamber, chute, combustion chamber, cooking chamber, furnace roof, etc. parts of the coke ovens. Silica Brick For Glass Kiln Mainly used for coke oven of coking chamber and combustion chamber partition, steel open hearth of the regenerative chamber and sediment chamber, soaking furnace, glass melting furnace, refractory silica brick materials, and ceramic firing kiln and kiln of the vault and other supporting parts. Also used in hot blast stove of high temperature bearing parts and acid open hearth furnace roof.

Advantage For Silica Fire Brick

1) Silicon oxide is above 95%.
2) Good acid erosion resistance.
3) High softening point with temperature.
4) No shrink in burn repeatedly.
5) Temperature of refractoriness under load is above 1650º C

Stable Capability, High Quality, Excellent Service, Competitive price is the most important advantage of our products.

Physical and Chemical Indicators

Jun 30, 2021

Fused Silica Brick

Fused Silica Brick Advantage

1.Fused silica brick has high purity, corrosion-resistant
2.Fused silica block has small thermal expansion coefficient
3.Fused silica refractory brick have small thermal shock resistance

Refractory fused silica brick has high viscosity at high temperature, high strength, strong slag resistance, and strong impact resistance, low thermal conductivity, small drying, and firing shrinkage.

Fused Silica Brick specification

Fused Silica Brick Application

Fused silica bricks have good thermal shock resistance, small thermal expansion, low bulk density, and small thermal conductivity, which is convenient for heat preservation and reduces heat loss. Refractory brick mainly used in flow aluminum tanks, aluminum gates and is suitable for the upper wall of a furnace for the masonry of low alkali borosilicate glass.

Fused Silica Brick Supplier in Rongsheng Refractory Factory

Rongsheng Refractory Factory is a fire-resistant and thermal insulation material production enterprise. RS firebrick factory is a comprehensive enterprise integrating scientific research, testing, development, production, sales, and customers. Rongsheng refractory brick has one production line for stereotyped and amorphous fire-resistant and wear-resistant refractory products. One production line is enough to meet the processing capacity of 80,000 tons of high-quality products per year, which has a construction team with professional anti-corrosion and thermal insulation engineering level and kiln masonry second-class qualification. The scope of construction includes the completion of turnkey projects from contract signing, material supply, metal spraying, corrosion-resistant spraying, material masonry insulation, oven, and operation. It has comprehensive testing methods and can guide us to each product. Indicators and each subtle production link.

Jun 30, 2021

Silicon Carbide Mullite Bricks

Silicon Carbide Mullite Bricks Characteristics

Abrasion Resistance
SiC mullite brick’s principal phases are high rigidity SiC, mullite, and corundum, meanwhile, SiC mullite bricks have high structural density, its bulk density is between 2.7 and 3.0g/cm3. So SiC mullite bricks have good abrasion resistance. Silicon carbide mullite brick’s density, strength, and abrasion resistance are significantly better than high alumina bricks and magnesia alumina spinel bricks.

Spalling Resistance And Thermal Shock Resistance

SiC in silicon carbide mullite bricks has high thermal conductivity, small thermal expansion rate, so SiC carbide mullite bricks have good thermal stability, max. thermal shock times can reach 46 times(1100℃, water cooling).

Insulating Performance

Silicon carbide mullite brick’s thermal conductivity(≤2.3W·(m·K) is lower than spinel bricks, and thus has a better heat preservation effect.

High-Temperature Performance

SiC mullite brick’s refractoriness under load is above 1500℃, max. is 1690℃, can endure high-temperature impact and won’t soften or deform.

Silicon Carbide Mullite Bricks Physiochemical Index

Silicon Carbide Mullite Bricks Application

Due to silicon carbide mullite brick’s good abrasion resistance, high refractoriness, and thermal shock resistance, it is popularly used in rotary cement kiln sintering zone, transition zone, and so on, where material rolling friction, high-temperature thermal stress, temperature fluctuation, and material corrosion are severe.