Silicon carbide burner sleeve: the “high-temperature guardian” of industrial furnaces

You may not have noticed that in the high-temperature furnaces of factories such as steel and ceramics, there is an inconspicuous but crucial component – the burner sleeve. It is like the “throat” of a furnace, responsible for stabilizing flames and protecting equipment.
Among many materials,silicon carbide(SiC) has become the preferred material for high-end burner sleeves due to its excellent performance.
Why choose silicon carbide?
-King of Extreme Environments: Capable of long-term stable operation in temperatures exceeding 1350 ° C
-Chemical corrosion barrier: It can resist the erosion of various acidic and alkaline gases and slag, greatly extending its service life.
-Excellent thermal conductor: high heat transfer efficiency, helps stabilize flames, and reduces energy consumption.
-High physical strength: wear-resistant, impact resistant, able to withstand various “disturbances” inside the furnace.

Silicon carbide radiation tube
What benefits can it bring?
-Longer lifespan, less downtime: reduce replacement frequency, lower maintenance costs.
-More stable production: flame stability, more uniform temperature, and more guaranteed product quality.
How to select and use?
-Observing microstructure: Products with fine grains and dense structure are preferred for more reliable performance.
-Pay attention to size matching: The fit with the burner body and installation holes should be precise to avoid unnecessary stress.
-Pay attention to connection methods: Ensure safe and reliable connections with intake pipes, observation ports, etc.
-Proper installation and maintenance: Handle with care during installation to avoid collision; Avoid letting cold air blow onto the hot burner sleeve during use.
Common Misconceptions
-Silicon carbide fears nothing “: Although it is corrosion-resistant, caution is still necessary in certain specific chemical environments.
-The thicker the better “: Increasing thickness will affect heat transfer performance, not necessarily the thicker the better.
-All silicon carbide is the same “: Silicon carbide produced by different processes has significant differences in performance.
Application scenarios
Silicon carbide burner sleeves are widely used in various industrial furnaces and kilns in industries such as steel, non-ferrous metals, ceramics, glass, and petrochemicals.
summary
Silicon carbide burner sleeve is a low-key “hero” in industrial furnaces. Choosing the appropriate silicon carbide burner sleeve can make your furnace more stable, efficient, and environmentally friendly.


Post time: Oct-07-2025
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