
Corrosion Resistance Magnesia Brick Use In Eaf , Refractory Brick
Products technical:
1.The products are fused magnesia as main raw material, after a
reasonable size distribution,
high pressure forming, high-temperature sintering. The product has
strong resistance to slag
corrosion ability and high temperature dimensional stability.
Mainly used in glass furnace
regenerator, the upper part.
2.The regular magnesia bricks are made from dense dead burned
magnesia that makes the bricks
in good refractoriness, corrosion-resistance, and widely used in
checker chamber of glass tank,
lime kiln, non-ferrous metallurgical furnaces, open heart furnace,
iron mixer and EAF of
steel-making, and also ferro-alloy furnace, etc
The bricks with MgO 95% or more in content take the
secondary-burning dead burned magnesia or
electrofused magnesia as the raw material and bured under the
condition of ultra high temperature.
They have the features of highly directly bonded and
corrosion-resistance and widely used in various
kinds of high temperature kilns and furnaces
Magnesia Brick Features:
Excellent performance of basic slag resistance, high
refractoriness, thermal stability, anti-erosion and anti-peeling
Excellent strength of pressure bending, abrasion proof
Excellent performance of high-temperature firing, high rates of
associative property, anti-erosion ability
Excellent thermal shock resistance and spalling resistance
Excellent ability of high refractoriness, anti-erosion of alkaline
residue;
High temperature load of refractoriness under load. High mechanical
strength
High temperature resistance Excellent corrosion resistance
Resistance to spalling
Magnesia products:
Msgnesia brick,magnesia alumina brick,magnesite carbon brick,
magnesia chrome brick and
magnesite-zircon brick ect are the main products of basic
refractories,the products have
the properties of bearing high temperature,high refractoriness
under load and good resistance o alkali.
they are widely used in the basic zone of metallurgical furnaces
,nonferous furnances and regenrator of glass furnaces.
Magnesia Refractory Bricks Physical and Chemical Indicators | ||||||||||
Item | Indicators | |||||||||
M-98 | M-97A | M-97B | M-95A | M-95B | M-93 | M-91 | M-89 | M-87 | ||
w(MgO)/%≥ | 97.5 | 97 | 96.5 | 95 | 94.5 | 93 | 91 | 89 | 87 | |
w(SiO2)/%≤ | 1.0 | 1.2 | 1.5 | 2.0 | 2.5 | 3.5 | — | — | — | |
w(CaO)/% ≤ | — | — | — | 2.0 | 2.0 | 2.0 | 3.0 | 3.0 | 3.0 | |
Apparent Porosit/% | 16 | 16 | 18 | 16 | 18 | 18 | 18 | 20 | 20 | |
Volume and Density/(g/cm3) | 3.00~3.20 | 3.00~3.20 | 2.95~3.15 | 2.90~3.10 | 2.85~3.05 | |||||
Cold Crushing Strength/ Mpa ≥ | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 50 | 50 | |
0.2MPa Refractoriness Under Load/°C ≥ | 1700 | 1700 | 1650 | 1620 | 1560 | 1550 | 1540 | |||
Permanent Change In The Heating/%(1650°C*2h)/% | —0.2~0 | —0.2~0 | —0.3~0 | —0.4~0 | —0.5~0 | —0.6~0 | — |
Competitive Advantage:
QINGDAO LAURENT NEW MATERIALS CO.,LTD
QINGDAO LAURENT NEW MATERIALS CO.,LTD
Zibo Laurel Refractory Material Co., LTD
Cooperations: