Reaction Bonded Silicon Carbide Batts & Boards
1.High temperature tolerance
2. Thermal shock resistance
3. Corrosion resistance
4. Thermal conductivity
RBSiC (SiSiC) Plates have superior characteristics, such as high bending strength, corrosion
resistance, high temperature tolerance, oxidation resistance, no dropping slags, superior thermal
conductivity, non-deformation for a long time service, etc .
The series of plates are ideal kiln furnitures for sanitary ceramics, household porcelain, building
ceramics, electric porcelain, refractories, etc. They are specially used for load-bearing plates in shuttle kilns, tunnel kilns, roller hearth kilns and other industrial kilns.
RBSiC (SiSiC) Plates have superior characteristics, such as high bending strength, corrosion
resistance, high temperature tolerance, oxidation resistance, no dropping slags, superior thermal
conductivity, non-deformation for a long time service, etc .
The series of plates are ideal kiln furnitures for sanitary ceramics, household porcelain, building
ceramics, electric porcelain, refractories, etc. They are specially used for load-bearing plates in shuttle kilns, tunnel kilns, roller hearth kilns and other industrial kilns.
|
item
|
unit
|
data
|
|
temperature of application
|
C
|
1380
|
|
density
|
g/cm3
|
>=3.02
|
|
open porosity
|
%
|
<0.1
|
|
bending strength
|
Mpa
|
250(20C)
|
|
|
Mpa
|
280(1200C)
|
|
modulus of elasticity
|
Gpa
|
330(20C)
|
|
|
Gpa
|
300(1200C)
|
|
thermal conductivity
|
W/m.k
|
45(1200C)
|
|
coefficient of thermal expansion
|
K-1*10-6
|
4.5
|
|
rigidity
|
|
13
|
Silicon Carbide SiC Brick for Furnace
Product Description
Silicon Carbide Bricks, Silicon Nitride Bonded Sic Brick / SiC brick is made of high quality synthetically made silicon carbide grains (SiC) and selected bonding components, including nitride, Si3N4.
Silicon Carbide Bricks has great features such as high thermal conductivity, high thermal shock resistance, low thermal expansion coefficient, high corrosion resistance, high bending strength, and excellent resistance to liquid aluminum erosion capability.
SiC brick is particularly ideal for application in high temperature furnaces and in waste incineration plants.
The Si3N4 SiC blocks are widely used as lining bricks of large aluminum electrolytic cell. Using nitride bonded silicon carbide products enlarges the tank capacity, improves the thermal conductivity, enables rapid cooling, and increases the tank production capacity at the same time. Alumina and cryolite of eutectic content can form on bricks' surface, which can protect the tank lining work layer, and prolong the tank's service life. Therefore, silicon nitride bonded silicon carbide bricks are widely used in the aluminum industry.
Silicon Carbide Bricks
|
Indexes
|
Silicon Carbide Bricks
|
|
Si3N4-SiC
|
Si2ON2-SiC
|
Sialon-SiC
|
|
SiC % min
|
72
|
72
|
72
|
|
Si3N4 % min
|
25
|
20
|
25
|
|
Free Si % max
|
|
0.4
|
|
|
0.2MPa RUL starting temperature °C min
|
1750
|
1650
|
1750
|
|
Typical Apparent Porosity(%)
|
15
|
18
|
14
|
|
Cold Crushing StrengthMPa
|
150
|
150
|
150
|
|
Rupture Strength MPa(1400°C × 0.5h) min
|
45
|
30
|
55
|
|
Room Temperature Rupture Strength MPamin
|
50
|
30
|
45
|
|
Resistance to thermal shock (>= Times) (1100°CWater Cooled)
|
40
|
40
|
40
|
Silicon Carbide Bricks (SiC)
|
BAND Properties
|
SC-1
|
SC-90
|
|
SPEC
|
TYPICAL
|
SPEC
|
TYPICAL
|
|
Apparent Porosity (%)
|
≤18
|
13.5
|
≤17
|
14.0
|
|
Bulk Density
|
≥2.55
|
2.65
|
≥2.45
|
2.60
|
|
Cold Crushing Strength (kg/cm2)
|
≥700
|
1100
|
≥800
|
1100
|
|
Chemical Composition
(%)
|
SiC
|
≥88.0
|
90.0
|
≥90.0
|
91.7
|
China supplier impact resistance RBSiC / SiSiC silicon carbide sic plates / tiles / sheets with high hardness, wear resistantce oxidation resistance are widely used in papermaking, chemical, electronics, pharmaceutical and other ink jet, lithium battery materials, electronic pulp nano-ceramic sanding machines.
1.Technical parameters of RBSiC / SiSiC silicon carbide sic plates / tiles / sheets :
|
ITEM
|
UNIT
|
DATA
|
|
Temperature
|
℃
|
1380
|
|
Density
|
g/cm³
|
≥3.02
|
|
Open Porosity
|
%
|
<0.1
|
|
Moh's Scale of Hardness
|
|
13
|
|
Bending Strength
|
MPa
|
250 (20℃)
|
|
MPa
|
280 (1200℃)
|
|
Modulus of Elasticity
|
GPa
|
330 (20℃)
|
|
GPa
|
300 (1200℃)
|
|
Thermal Conductivity
|
W/m.k
|
45 (1200℃)
|
|
Coefficient of thermal expansion
|
k-1×10-6
|
4.5
|
|
Acid Alkaline -proof
|
|
Excellent
|
2.Property:
◊ Superior wear resistance, impact resistance and corrosion resistance
◊ Excellent flatness and temperature resistance up to 1380℃
◊ Excellent oxidation resistance
◊ Good dimensional control of complex shapes
◊ Easy installation
◊ Longer service life ( about 5 times more than that of alumina ceramic and 6 times more than that of polyurethane)
3. Specification of RBSiC / SiSiC silicon carbide sic plates / tiles / sheets:
Thickness available: 4mm - 45mm
Remark: Other sizes and shape are available upon requests.
4.Other RBSiC / SiSiC silicon carbide products:
The main products of reaction bonded silicon carbide ceramics are: cross beams, rollers, cooling air pipe, burner nozzles, thermocouple protecting tubes, temperature measuring parts, radiant tubes, desulfurization nozzles, crucible, batts, wear resistant lining materials, plates, seals, rings and special shaped structural parts.
The RBSIC ceramic products are widely used in high temperature ceramic kiln, steel quench furnace, large boiler, power plant desulfurization dusting equipment and high-tech military equipment. The industry involves but not limited to daily-use ceramics, sanitary ceramics, porcelain insulator, crystallite glass, metallurgy, magnetic materials, electric power, chemical industry, steel, petroleum, machinery, military industry, etc.
Batts are used as the basic support element in most kilns and furnace structures, forming a flat, rigid surface which carries the ware during firing, sintering or heat treatment.
