Due to excellent robustness, heat resistance and oxidation resistance, silicon carbide kiln shelves is widely used in high-temperature ceramic firing and industrial kilns. It can withstand repeated hot and cold cycles without cracking and its high thermal conductivity enables rapid and uniform heat transfer, which prevents ceramic products from deforming during firing. Furthermore, silicon carbide plates or beams perform exceptionally well in supporting high-temperature firing processes.
Technical Parameters of Silicon Carbide Kiln Shelves
| Item | Index |
|---|---|
| SIC Chemical Composition, % | ≥ 90 |
| Max.Service Temp, °C | 1500 |
| Refractoriness, SK | ≥ 39 |
| Refractoriness Under Load | ≥ 1750 |
| Modulus of Rupture at Room Temp, kg/cm² | ≥ 500 |
| Modulus of Rupture at 1400°C, kg/cm² | ≥ 100 |
| Compressive Strength, % | ≥ 1300 |
| Thermal Expansion at 1000°C , % | 0.42 – 0.48 |
| Apparent Porosity, % | 7-8 |
| Apparent Porosity, % | 7-8 |
| Bulk Density, g/cm² | 2.70 -2.75 |
| Thermal Conductvity at 1000°C, kcal/m.hr. °C | 13.5-14.5 |
Types of Silicon Carbide Kiln Shelves
Depending on the application, silicon carbide kiln furniture can be made into products of different shapes. For example, silicon carbide plates are used to hold semi-finished products when firing ceramics. Besides, REBO provides various refractory insulation bricks and monolithic products. Commonly used silicon carbide kiln furniture is shown below:
Applications of SIC Kiln Furniture
Depending on the application, REBO recommends different shapes of kiln shelves silicon carbide. If you are still confused, please contact REBO for assistance in selecting the most suitable silicon carbide shelves.
1. For Load Bearing and Support
Silicon Carbide Beams
Silicon carbide beam is the main load-bearing component of the kiln car structure. Because it can stack the weight of dozens of layers of shelves. This structure can effectively withstand bending stress.
Silicon Carbide Supports/Posts
SiC supports are vertical and are generally designed as hollow cylinders or squares to reduce weight. It also also ensure the same load-bearing area to avoid thermal stress concentration. If you need other acid alkali proof tiles and heat resistant products, welcome to contact us.
2. For Bearing and Isolation
Silicon Carbide Plate
As shown in below image, silicon carbide plates are flat, which allows direct contact with the workpiece in high temperatures. Furthermore, silicon carbide plates prevent adhesion during ceramic firing.
Silicon Carbide Sagger
These products are enclosed on all four sides and bear weight at the bottom. The cavity structure is particularly suitable for holding powders, small particles, or free-flowing materials.Customers in the electronics industry or other high-precision industries will use silicaon carbide saggers.
3. For Industrial Transport
SIC Roller
In continuous roller kilns, SiC rollers serve as dynamic conveying elements. In roller kilns, the drive system propels the rollers forward, enabling continuous, high-speed, stable conveying.
Silicon Carbide Nozzles
In a gas-fired kiln, the SIC nozzle precisely injects a mixture of fuel and combustion-supporting gas into the furnace and organizes the shape and direction of the combustion flame.
Recent Cases of REBO Silicon Carbide Kiln Shelves
Recently, REBO exported silicon carbide kiln furniture products to multiple regions in South America, the Middle East, Southeast Asia and Europe. It covers countries such as Colombia, Argentina, Israel, Belarus, Singapore, the Philippines and Indonesia. REBO can also supply refractory bricks and ceramic fiber products to meet customers’ kiln structure requirements, achieving a “one-stop” refractory kiln furniture supply. Welcome to visit REBO Pinterest.
