Refractories
MAGNESIA BRICKS
Magnesia Bricks, a kind of basic refractory with more than 90% magnesium oxide content, are made of periclase as the main crystal phase. Magnesia Brick is mainly used in basic open-hearth furnace for steelmaking, electric furnace, rotary cement kiln, heating furnace, glass furnace and hyperthermia tunnel kiln with properties of higher refractoriness, good basic slag erosion resistance and high apparent initial softening temperature.
MAGNESIA BRICKS FEATURES
It is a kind of alkaline refractory product with periclase as the main phase and magnesite-alumina spinel clinker as the basic material. the product has such characteristics as good temperature vibration, good strength, and volume stability in high temperatures.
MAGNESIA BRICKS APPLICATION
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Basic open-hearth furnace for steelmaking
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Electric furnace bottom and wall
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The permanent lining of the oxygen converter
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Non-ferrous metal metallurgy furnace
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Hyperthermia tunnel kiln
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The lining of the rotary cement kiln
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Heating furnace bottom and wall
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Regenerative chamber of glass furnace
MAGNESIA BRICKS CLASSIFICATION
Magnesia Bricks generally can be classified into two types Burnt Magnesia Bricks and Chemical Bonded Magnesite Brick.
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Burnt Magnesia Bricks have high purity and firing temperature as the direct contact with periclase crystalline grain.
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Chemical bonded magnesite brick is made of fused magnesite as the raw material.
MAGNESIA BRICKS PROPERTIES
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High Refractoriness
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Good alkaline slag erosion resistance
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High apparent initial softening temperature
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Good thermal conductivity
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High thermal expansion
MAGNESIA BRICKS MANUFACTURING PROCESS
Burnt Magnesia Bricks are manufactured with magnesite clinker as the raw material and fired at a high temperature of 1550~1600℃ after smashing, burdening, mulling, and molding. High-purity products can be fired in a temperature over 1750℃. Chemical bonded magnesite brick is produced with certain chemical bonding through mixing, molding, and drying.
MAGNESIA BRICKS SPECIFICATION
