Zhengzhou STA Silicon Nitride bonded silicon carbide/Si3N4-Sic refractory fire plate
1.Product description:
Silicon Nitride bonded silicon carbide plate, silicon carbide as the main raw material according to different requirements of manufacturers to produce various shapes of the adobe, after drying, in the nitrating furnace with high purity nitrogen reaction sintered. The product has a high temperature, high strength, volume stability and good thermal conductivity, acid, alkali and a variety of molten metal erosion ability and so on. The material is widely used in colored aluminum tank, zinc vertical tank; metallurgical industry, blast furnace lining, ceramic kiln shelf panels, pillars, separated flame plate; waste incineration furnace lining and other industries. Products, dimensions, physical and chemical indicators of useful life are up to customer requirements.
2.Si3N4 bonded SiC board/plates Properties:
a)Superior Oxidation Resistance
b)Improved Performance
c)Lowered Cost Burden
d)Longer Life Between Replacement/Rebuilds
e)Allows Lower Weight
f)Very High Thermal Conductivity
3.Physical and chemical index:
item | data |
temperature of application | 1450°C |
density | >=3.02g/cm3 |
open porosity | <0.1% |
bending strength | 250Mpa(20centigrade), 280Mpa(1200centigrade) |
modulus of elasticity | 330Gpa(20centigrade), 300Gpa(1200centigrade) |
thermal conductivity | 45W/m.k(1200centigrade) |
coefficient of thermal expansion | 4.5K-1*10-6 |
Mohs hardness | 13 |
Acid and alkali resistance | Excellent |
Item | SIC-80 | SIC-85 | SIC-90 |
SiC, % min | 80 | 85 | 90 |
Bulk Density , g/cm3 | 2.60-2.70 | 2.60~2.70 | 2.70-2.75 |
Apparent Porosity , % max | 17 | 16 | 16 |
Cold Crushing strength, MPa min | 150 | 150 | 150 |
rupture strength under normal temperature, MPa min rupture strength at 1200 Cmin | 30 40 | 40 45 | 45 50 |
Thermal Conductivity, w/m.k min | 15 (1000C) | 16 | 18 (800C) 14 (1200C) |
thermal expansion coefficient, max | 4.7x10 -6 /C | 4.7x10 -6 /C | 4.7x10 -6 /C |
4.Other materials are available:
1. Reaction Sintered Silicon carbide (RBSiC/SiSiC) board/plates
2. Sintered Silicon Carbide (SSiC) board/plates
3. Recrystallized Silicon Carbide ceramic (RSiC) board/plates
5.Main applicaitons:
1)Automobile Industry
2)Boiler Industry
3)Chemical Industry
4)Magnetic Materials Industry
5)Metallurgy
6)Metallurgy Industry
7)Paper Industry
8)Petroleum Industry
9)Crystallite Glass Industry
Sic plate for kiln furnace