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Product Details:
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| Cold Crushing Strength, MPa ≥: | 55 | Thermal Expansion %:: | 1000°C 1.28(1.30) |
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| Raw Material: | Silicon Carbide Powder | Application: | Cement Rotary Kiln,glass Kiln Regenerative Chamber Etc |
| Color: | Black And Green | Processing: | Bending, Welding, Punching, Decoiling, Cutting, Moulding |
| Product Name: | Alumina Silica Refractory Brick | ||
| High Light: | Furnace alumina silica brick,Furnace alumina brick,alumina silica brick 55 MPa |
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Furnace Refractory Brick alumina Silica Brick Refractory Bricks For Coke Oven
Silica brick is the acid refractory ,which consist mainly of tridymite, cristobalite, and a small amount of residual quartz and glass phases.
The silica content is 94% or more. It has acid slag corrosion resistance and higher high temperature strength. The load softening start temperature is 1620~1670 °C. Long-term use at high temperatures does not deform. The thermal shock stability is low (heat exchange in water for 1~4 times). This residual expansion will make the joints tight and ensure good air tightness and structural strength of the masonry.
Silica brick is made of quartz stone material, the content of SiO2 is above 93%,it has good resistance to acid slag and good heat conductivity. And the refractoriness is 1690~1710°C,RUL 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.
The bricks are packed on wooden pallet with papers in each layer and PP film wrapped outside of the whole pallet.
Contact Person: Cathy
Tel: 13901538890
Fax: 86-510-87459052
