Product description
Silica refractory brick is fused silica refractory,a acid refractory brick which mainly consisting of tridymite, cristobalite, and a small amount of residual quartz and glass phases. The silicon content is 94% or more. True density of the silicon brick is 2.35g/cm3.
CH Refractories has manufactured and installed silica refractory brick for more than 30 years, there are many different kinds molds, when manufacturing, which will save much mold casting time. CH Refractories also can design silica firebricks size for you according to your furnace requirements for free and guide you how to install on site.
Silica refractory brick has the following performance characteristics:
1. High temperature resistance: the high temperature performance of silica refractory brick is very excellent, usually can withstand high temperatures above 1500 ° C, has good seismic performance, can effectively slow down the furnace cracking shock absorption.
2. Corrosion resistance: silica refractory brick has a certain acid and alkali corrosion resistance, can withstand a variety of chemical substances erosion and corrosion.
3. High strength: silica refractory brick has a high strength and can withstand great pressure and load.
4. Good thermal conductivity: silica refractory brick has good thermal conductivity, which can reduce the surface temperature of the furnace body and make the internal temperature of the furnace body evenly distributed.
Silica refractory brick specific application areas include:
1. Iron and steel smelting industry: lining materials for high temperature furnaces, adhesives for melting furnaces, heat treatment furnaces, etc.
2. Chemical industry: Used in high temperature reactors, kilns, etc.
3. Construction industry: Used for high temperature furnace, boiler lining materials, etc.
4. Energy industry: lining materials for thermal power plants, etc.
Physical and chemical index of silica refractory brick
|
Items |
common silica brick |
silica brick used for hot blast stove |
|||
|
/ |
CH-GZ-95 |
CH-GZ-94 |
CH-GZ-93 |
Vault brick |
Checker brick |
|
SiO2%≥ |
95 |
94 |
93 |
95 |
95 |
|
Refractoriness/℃ ≥ |
1710 |
1710 |
1690 |
||
|
0.2Mpa refractoriness under load℃ ≥ |
1650 |
1620 |
1620 |
||
|
Apparent porosity/% ≤ |
22 |
23 |
25 |
22 |
23 |
|
CCS/Mpa ≥ |
29.4 |
24.5 |
19.6 |
35 |
30 |
|
Bulk densityg/cm3 ≥ |
2.37 |
2.38 |
2.39 |
2.35 |
|
|
High temperature Creep(0.2Mpa 1550℃,50h)/%≤ |
0.8 |
||||
|
Thermal linear expansion/%(1500℃) ≤ |
1.26 |
||||
Packages
Physical and chemical index of silica refractory brick
|
Items |
common silica brick |
silica brick used for hot blast stove |
|||
|
/ |
CH-GZ-95 |
CH-GZ-94 |
CH-GZ-93 |
Vault brick |
Checker brick |
|
SiO2%≥ |
95 |
94 |
93 |
95 |
95 |
|
Refractoriness/℃ ≥ |
1710 |
1710 |
1690 |
||
|
0.2Mpa refractoriness under load℃ ≥ |
1650 |
1620 |
1620 |
||
|
Apparent porosity/% ≤ |
22 |
23 |
25 |
22 |
23 |
|
CCS/Mpa ≥ |
29.4 |
24.5 |
19.6 |
35 |
30 |
|
Bulk densityg/cm3 ≥ |
2.37 |
2.38 |
2.39 |
2.35 |
|
|
High temperature Creep(0.2Mpa 1550℃,50h)/%≤ |
0.8 |
||||
|
Thermal linear expansion/%(1500℃) ≤ |
1.26 |
||||
