Ceramic Roller Kiln Refractory Brick Corundum Refractory Brick
Mullite Brick
Corundum mullite brick is produced by sintering of high purity
fused corundum, synthetic mullite and chromium oxide. corundum
mullite block has high bulk density, high compressive strength,
good thermal shocking resistance, and good corrosion resistances to
acids and alkali. Corundum mullite fire btick not influenced by H2,
CO gases at use. Mullite refractory brick is suitable for various
high-temperature furnaces; high purity corundum brick used in
zirconia ceramics, fluorescence materials, electronic ceramics,
magnetic materials, ceramic powder sintering and petrochemical
industry gasifier.
Corundum Mullite Brick Description
Corundum mullite brick is a kind of refractory brick made from high
purity or purer raw materials, also corundum mullite block is a
high alumina fire brick which made of corundum and mullite main
crystalline phase. main material of corundum mullite brick is
imported plate corundum, high pure fused corundum, adopt advanced
superfine powder adding technology, it is made by the mixing
material, drying, molding and burned in high temperature shuttle
kiln.
Corundum Mullite Brick Features
.High quality raw material,
.High purity corundum,
.Strong volume stability at high temperatures,
.Molded with high pressure and high temperature,
.Good thermal shock resistant,
.Wear resistance,
.Chemical attack resistance.
Corundum Mullite Brick Manufacturing Process
Corundum mullite brick is made of synthetic mullite brickand
mullite particles to aggregate material are available, and alpha
Al2O3 powder for powder, can also be fused or sintered corundum
particles to aggregate material, synthetic mullite powder for
powder. The aggregate and powder are mixed according to a certain
proportion and grain size. The waste liquor of paper pulp with
sulfite is used as the binding agent, and the materials are added
in a certain order.Fully mixed and even, with friction press or
hydraulic press brick molding machine.Adobe after drying, burn into
in 1650 ~ 1750 ℃.
Rongsheng Refractory Corundum Mullite Brick Specifications
Brand RS-48 RS-49 RS-50 RS-55 RS-57 RS-57 RS-60 RS-67
Bulk density g/cm3 ≤ 0.6 0.8 1 0.6 0.8 1 1 1.2
Cold Crushing strength Mpa ≥ 1.5 2.5 4.2 1.5 3.2 4 4 5
Thermal stability 1100°C (air colling) 10 20 20 10 20 20 20 20
Reheating linear change ≤ 1% (°Cxh) 1300×12 1300×12 1300×12 1400×12
1400×12 1400×12 1500×12 1500×12
Thermal conductivity 350±25° (W/m.k) ≤ 0.2 0.23 0.33 0.2 0.25 0.33
0.35 0.4
Al2O3 % ≥ 48 49 50 55 57 57 60 67
Fe2O3 % ≥ 0.9 0.9 0.9 0.8 0.8 0.8 0.7 0.6
Corundum Mullite Brick Price
Generally, cordundum mullite brick is divided into sintering and
fused bricks, the price of two kinds of corundum mullite refractory
bricks are very different in the market, the price is in the range
of thousands to 10,000. We suggest different corundum mullite fire
brick should be selected according to different parts of kiln, not
only improve the life of furnace, but also reduce the cost.
