Silicon Carbide Brick

Silicon Carbide Bricks Introduction
 
Silicon carbide bricks as a kind of hot-sale refractory bricks for high temp furnace application in Non-ferrous metal smelting industry,steel industry, metallurgical industry in Rongsheng factory manufacturing with silicon carbide bricks have good properties of corrosion resistance,good wear resistance, high thermal conductivity,thermal shock resistance .There are silicon carbide brick for sale cheap in RS factory, which can provide specification and category as well as competitive price & high-grade quality refractory bricks, welcome to contact us or email us for free quote. 
 
Silicon Carbide Bricks Properties
 
Corrosion resistance

Good wear resistance

High thermal conductivity

High temperature strength

Good thermal shock resistance

Low thermal expansion coefficient
 
Silicon Carbide Brick Specification
 
RS factory can provide three kind of silicon carbide brick specification.
  
First Silicon Carbide Brick Specification Sheet
 

 
Second Silicon Carbide Brick Specification Sheet
 

 
Third Silicon Carbide Brick Specification Sheet
 

 
Silicon Carbide Brick Application
 
1.Silicon carbide refractory bricks application of non-ferrous metal smelting industry silicon carbide has high temperature resistance, high strength, good thermal conductivity, impact resistance, high temperature indirect heating materials, such as hard tank distillation furnace. Rectification furnace tray, aluminum electrolysis tank, copper melting furnace lining, zinc powder furnace arc plate, thermocouple protection tube.
 
2.Silicon carbide fire bricks application of the steel industry utilizes the corrosion resistance of silicon carbide. Refractory silicon carbide bricks has good properties of resistance to thermal shock and abrasion. SIC bricks have good thermal conductivity for large blast furnace linings for improved service life.
 
3.Silicon carbide refractory bricks application of metallurgical beneficiation industry Silicon carbide hardness is second only to diamond and has strong wear resistance. Silicon carbide fire bricks is an ideal material for wear-resistant pipes, impellers, pump chambers, cyclones and mine linings. Silicon carbide fire bricks have wear resistance is cast iron.
 
4.Silicon carbide bricks have building materials ceramics, the application of the grinding wheel industry to use its thermal conductivity. The characteristics of heat radiation and high heat intensity make thin plate kiln furniture, which not only can reduce the capacity of kiln furniture, but also improve the capacity and product quality of the kiln, shorten the production cycle, and is an ideal indirect material for ceramic glaze baking.
 
5.Silicon carbide refractory bricks energy-saving applications using good thermal and thermal stability, as a heat exchanger, fuel consumption reduction of 20%, saving fuel 35%, so that productivity increased by 20-30%. In particular, the internal discharge of the discharge pipeline used in the mine selection plant is 6-7 times that of the ordinary wear-resistant material.
 
Silicon Carbide Brick Manufacturing Process
 
1.Silicon Carbide Fire Bricks Molding
 
Steel form work or wooden mold is used. After adding silicon carbide powder in the mold, silicon carbide refractory brick is pressed by a press. Common presses include friction press, vibration press and static press.
 
2. Silicon Carbide Fire Bricks Pouring and Forming
 
pouring molding is to put the silicon carbide material into the mixer and stir it.
It is added into the mold and shaken by vibration platform or vibrating rod. After routine maintenance, after demoulding, drying and firing.
 
3.Silicon Carbide Fire Bricks Grouting Molding
 
Silicon carbide fire bricks grouting molding is to add silicon carbide powder and binder after adding water or additives, then pour into the mold, dry, go to the mold, and then sintered, grouting is generally used for making small , or specific, more sophisticated silicon carbide products.
 
Silicon Carbide Brick Classification
 
1.Clay Combined with Silicon Carbide Brick
 
Clay-bonded silicon carbide brick is a refractory product made of silicon carbide as the main raw material and clay as a binder. Silicon carbide bricks is characterized by high thermal conductivity, small thermal expansion coefficient, good thermal shock resistance and wear resistance, silicon carbide bricks is one of the earliest developed among silicon carbide bricks.
 
The clay-bonded silicon carbide brick is made of black silicon carbide.Fireproof silicon carbide bricks chemical composition: SiC 98.0%, free C 0.5%, Fe 0.2%, free SiO2 0.6%, and soft clay and pulp waste liquid with good bonding properties as binder. The proportion of bonded clay used in the past is relatively large, generally 10% to 15%, and 3% of clay and 5% pulp waste are now used. The thermal conductivity of silicon carbide bricks with less clay added is 3 to 4 times higher than that of clay-bonded silicon carbide bricks, the load softening temperature and slag resistance are also higher. The manufacturing process of combining 3% clay with SiC bricks is to prepare coarse, medium and fine SiC according to the particle grading which can obtain the maximum bulk density. After the dry mixing is uniform, the clay is added, and after 3 minutes of dry mixing, the pulp waste liquid (density 1.26 to 1.289/cm3) is added 4%, and the mixture is kneaded. The moisture content of the mud material is about 1.5%. After the material is trapped for 12 hours, the mud material passes through a 4 mm screen and is formed by a brick press. The brick has a bulk density of 2.5 to 2.79/cm3. It is dried under natural drying conditions for 2 to 4 days, and fired in a tunnel kiln at a firing temperature of 1400 °C.
 
Silicon carbide bricks for hot sale is used as a ceramic kiln furniture (shed, bracket, raft, etc.), a muffle cover for the muffle furnace, a furnace lining brick for the aluminum refining furnace, a distillation tank for the zinc distillation furnace, a cement rotary kiln cooler, and the like.
 
2.Silicon nitride bonded silicon carbide brick
 
The silicon nitride bonded silicon carbide brick is a refractory product which is sintered by nitriding using SiC and Si powder as raw materials. It is characterized by Si3N4 as the binding phase. Si3N4 is an important new refractory material in the form of acicular or fibrous crystals between SiC grains.
 
The SiC body containing silicon powder is sintered by a nitridation reaction by a reaction sintering principle, and the firing process is completed in a closed furnace which is easily controlled by introducing nitrogen gas. The temperature, pressure and atmosphere in the furnace must be strictly controlled. The main process parameters: nitriding gas pressure 0.02 ~ 0.04MPa, furnace SIC bricks atmosphere containing O2 amount less than 0.01%, the final nitriding temperature 1350 ~ 1450 ° C, the total nitriding time varies with the shape and size of the product.
 
Silicon nitride bonded silicon carbide bricks have good alkali corrosion resistance, resistance to melting cryolite, oxidation resistance, wear resistance, high thermal conductivity, thermal shock resistance and extremely low electrical conductivity.
 
Silicon nitride combined with silicon carbide brick is mainly used as the inner lining of the lower furnace body, which is more than double the life of traditional refractory materials. In addition, it can be used as aluminum reduction electrolytic cell lining and ceramic kiln furniture, which has energy saving, improved life and no It can also be used as a blast furnace tuyere water-cooled tube brick for the advantages of polluting the environment.
 
3.Silicon Carbide Fire Bricks Recrystallized Silicon Carbide Products
 
The recrystallized (recrystallized) silicon carbide product is a refractory product in which silicon carbide and silicon carbide are directly bonded to silicon carbide. SIC brick is characterized by the absence of a second phase and consists of 100% α-SiC. The chemical composition of the raw materials used for the production of recrystallized silicon carbide is as follows: SiC 99.5%, free C 0.2%, Fe 0.08%, free SiO2 0.08%.
 
Recrystallized silicon carbide products are mainly used as kiln furniture, which has the advantages of energy saving, increasing the effective volume of the kiln, shortening the firing cycle, improving the production efficiency of the kiln, and high economic efficiency. SIC brick can also be used as a burner nozzle head, a ceramic radiant heating tube, and components. Protection tube (especially for atmosphere furnace)
 
 
 Silicon Carbide Brick Energy Saving Effect
 
Silicon carbide bricks are currently selling well in enamel, ceramics, glass, non-ferrous metals, power, chemicals, and environmental protection industries. The energy-saving effect of silicon carbide bricks is very good, and the green silicon carbide bricks production cost of the enterprise can be reduced during production. The energy-saving performance of silicon carbide bricks is now being paid more attention by the industry.
 
Because the thermal conductivity of silicon carbide bricks is large, the heat transfer is very fast. The types of fuel used in the current furnaces are coal, biological particles, natural gas, liquefied gas, heavy oil, electricity and other energy. With the emphasis on environmental protection, the use of coal It is also gradually decreasing. Most companies use natural gas and electric heating. As everyone knows, natural gas and electricity are relatively expensive resources. How to reduce the cost of this has become a concern for everyone because of the direct relationship between fuel costs. The production cost of the product plays a very important role in the competitiveness of the product in the market.
 
They use of silicon carbide bricks completely solves the problem of fuel cost for enterprises. When silicon carbide bricks or silicon carbide sheets are used as furnace furnaces, furnace linings and burners, they save more than 50% of energy than ordinary refractory bricks. Fireproof silicon carbide brick is essential to enhance the competitiveness of products, so the energy-saving effect of silicon carbide bricks is recognized by more people.
 
Why Choose Rongsheng Factory as Silicon Carbon Bricks Supplier
 
❉Rongsheng factory is specialized in exporting refractory bricks for more than 20 years.

❉Rongsheng factory has famous refractory material parts suppliers, refractory bricks , castable refractory material, lightweight insulation firebricks and prefabricated bricks according to client requirement , which can offer customers’ a high quality products and assurance.

❉3years after sales service
 
❉7*24h after sales online chatting

❉High quality refractory bricks guarantee

❉Professional technical guidance
 
❉Silicate carbide competitive price for sale
 
❉Our experienced technicians and design engineers are capable of analyzing client’s needs and designing the most suitable plant configuration to satisfy the project specifications.