Calcium-free zero-expansion silica brick
Release time:
2024-08-19
Widely used in metallurgy, chemical industry, light industry. In the metallurgical industry, it is mainly used as the submerged nozzle in continuous casting; the carbonization chamber in the coke oven and other parts.
1. main features:
1. Strong thermal shock resistance, stable chemical properties, SiO2 content greater than 99% anti-invasion
Excellent corrosion and acid resistance.
2. Low Fe 2O3 content is less than 0.1, which is non-polluting to products (such as glass liquid, etc.)
Dye.
3. Low flux index (Al2O3 + 2R2O) less than 0.3%, corrosion resistance, high resistance
Warm sex is good.
4. The thermal expansion rate is close to zero, and expansion joints may not be reserved during repair to increase the tightness of the masonry.
5. It is not easy to adhere to carbon under high temperature and long time use, and the corrosion resistance of molten steel is good.
6. Excellent thermal stability, thermal repair products will not crack, can not stop the furnace under the condition of high temperature, direct repair
Industry.
7. After repair (hot repair), there will be no peeling and other phenomena, long-term use is safe and reliable.
8. After masonry does not need to be baked for a long time; no preheating.
2. main purpose:
Widely used in metallurgy, chemical industry, light industry. In the metallurgical industry, it is mainly used as the submerged nozzle in continuous casting; the carbonization chamber in the coke oven and other parts. In the chemical industry, it is mainly used as the top of the glass furnace. Zero expansion silica brick because of its small expansion rate, high thermal stability, high compressive strength and other characteristics, it is easy to be made into large blocks, and the surface is smooth without carbon deposition. In the United States and Canada and other countries of the coke oven door and gas rise pipe and other parts, has been widely used, its life than clay brick increased nearly 15 times.
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