Silicon carbide (SiC) material is widely used in various industrial equipment under high-temperature, high-pressure and corrosive environments due to its excellent high-temperature resistance, oxidation resistance, mechanical strength and electrical conductivity. As one of the important applications of silicon carbide materials, silicon carbide furnace tube (SiC furnace tube)play an indispensable role in modern industry.
Product Feature
High Temperature Resistance ：The melting point of silicon carbide material is as high as 2800℃. Even in an ultra-high-temperature environment, silicon carbide furnace tubes can maintain a stable structure and performance.
Corrosion Resistance：Silicon carbide furnace tube can resist the erosion of common corrosive media such as chlorine and fluorine during smelting, chemical reactions and other processes, thereby extending their service life.
Heat Conductivity：Silicon carbide furnace tubes are widely used in heating and heat treatment equipment and can ensure the uniformity of heating.
Abrasive Resistance：Silicon carbide has high hardness and strength, and can withstand considerable mechanical pressure and wear, especially in some environments with severe wear, its performance is particularly outstanding
Application
Metal Melting:In the process of metal smelting, especially in the melting of aluminium, steel and some precious metals, materials that can withstand high temperatures and corrosion are needed to withstand the erosion of molten metals. Silicon carbide furnace tubes can withstand temperatures as high as over 2000℃ and are highly suitable for use as heating elements or inner lining materials in metal smelting furnaces.
The Glass and Ceramic Industry:The glass production process involves high-temperature melting and heating. Silicon carbide furnace tubes, with their high-temperature resistance, can effectively enhance production efficiency. During the ceramic firing process, silicon carbide furnace tubes, as the pipe material in high-temperature sintering furnaces, are also widely used.
Chemical Reaction:In the chemical industry, certain chemical reactions need to be carried out under high-temperature and high-pressure conditions, and the reaction process may produce corrosive gases. Silicon carbide furnace tubes have extremely high corrosion resistance and can provide stable support under these harsh conditions, ensuring the smooth progress of the reaction.
Heat Treatment:Heat treatment technology is used to change the structure and performance of metal or alloy, and the silicon carbide furnace tube is used in heat treatment furnace, especially in high temperature environment for hardening and annealing, which can effectively guarantee the temperature stability and furnace life of furnace during heat treatment.
Semiconductor industry:In the manufacturing process of semiconductors, especially in chemical vapor deposition (CVD) and other high-temperature treatment processes, silicon carbide furnace tubes play a significant role. Its high-temperature and corrosion-resistant properties enable it to meet the high requirements for temperature control and gas purity in semiconductor manufacturing.
Manufacturing Technique
The manufacturing process of silicon carbide furnace tubes is relatively complex and requires special high-temperature sintering technology for preparation. Common preparation methods include:
Hot-pressing Sintering:Hot-pressing sintering is a method of sintering silicon carbide powder under high temperature and high pressure conditions. This method can obtain relatively dense silicon carbide materials with excellent mechanical properties and thermal stability.
Vapor Deposition:Silicon carbide materials with high purity and low defects can be prepared by vapor deposition. Vapor deposition can control the thickness and crystal morphology of the deposited layer under certain conditions, making the surface of the furnace tube smoother and enhancing its corrosion resistance.
Reaction Sintering:Silicon carbide is produced by reacting different precursors through the reaction sintering method. This method has a relatively simple process and can be mass-produced, but the density and mechanical properties of the finished product are slightly lower than those of hot-pressed sintering.
VET Company’s silicon carbide tube furnaces, specially designed for a wide range of heat treatment applications, feature durable silicon carbide (SiC) heating elements, demonstrating outstanding temperature uniformity and rapid heating speed. This robust structure ensures stable performance even under extreme temperatures. Combined with a precise temperature control system, it can obtain highly accurate and repeatable experimental results. Its long-lasting reliability makes this equipment an ideal choice for fields such as material research and ceramic processing. Whether in a laboratory or industrial environment, this multi-functional and highly efficient tube furnace can provide a perfect solution for all kinds of demanding heat treatment requirements.
Post time: Aug-12-2025