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Reaction-sintered silicon carbide, silicon carbide nozzles, radiation tubes, burners, heat-exchange tubes, silicon carbide furnace tubes, burners, silicon carbide plates
In which main fields can silicon carbide furnace tubes be used?
Release time:
2022-04-18
In fact, silicon carbide is a synthetically produced carbon-based compound that is typically formed by passing an electric current through a mixture of carbon and silica at a high temperature of 2,000 degrees Celsius. Silicon carbide furnace tube With advantages such as high strength and wear resistance, hard material properties, corrosion resistance, and high-temperature strength, silicon carbide is used in a wide variety of wear-resistant and high-temperature components. At room temperature, silicon carbide is a semiconductor with impurity-induced conductivity. The higher the purity and the higher the temperature, the lower the resistivity. Its electrical conductivity also varies depending on the type and concentration of impurities. Silicon carbide exhibits excellent hydrophilicity and far-infrared radiation properties.
Silicon carbide can be used in abrasive tools and, in the electronics industry, as a raw material for manufacturing grinding wheels, sandpaper, abrasive blocks, and piezoelectric crystals. It can also be employed as lining materials for smelting furnaces, silicon carbide plates, silicon carbide crucibles, and lining boards. This is because silicon carbide exhibits excellent resistance to corrosion, high-temperature durability, good thermal conductivity, and superior impact resistance. Additionally, it serves as a high-temperature indirect heating material in the non-ferrous metal smelting industry—for applications such as arc plates for zinc powder furnaces, aluminum electrolytic cells, furnace linings for copper melting furnaces, protective tubes for thermocouples, and vertical dry distillation furnaces.
Due to its stable chemical properties, high thermal conductivity, low thermal expansion coefficient, and excellent wear resistance, silicon carbide has many applications beyond being used as an abrasive. By applying silicon carbide powder to the inner walls of turbine blades or cylinder bodies through a special process, their wear resistance can be significantly enhanced, extending their service life by a factor of 1 to 2. High-grade refractory materials made from this material boast advantages such as resistance to thermal shock, compact size, light weight, high strength, and excellent energy-saving performance. They can also accelerate steelmaking processes, precisely control chemical compositions, and improve steel quality. Moreover, silicon-carbide rods—widely used in the manufacture of electric heating elements—are another important application of this material.
Silicon carbide furnace tube The main application areas are: functional ceramics, advanced refractory materials, abrasives, and metallurgical raw materials. However, the application of nano-sized silicon carbide powders—highly technologically sophisticated—cannot achieve economies of scale in the short term. Since silicon carbide raw materials are already available in large quantities, they can no longer be considered high-tech products.
In general, silicon carbide has a wide range of applications and can be extensively used in various fields, playing an important role in each of them. Among these applications, silicon carbide furnace tubes have the following characteristics:
1. High-temperature resistance: Due to the high-temperature resistance of silicon carbide, its performance in this regard varies depending on the manufacturing process. Silicon carbide tubes sintered after reaction can be used at temperatures up to 1300°C, while those without sintering can withstand temperatures up to 1600°C.
2. Corrosion resistance: Silicon carbide furnace tubes can be used directly in acidic and alkaline environments without any degradation in sealing performance.
3. Wear Resistance: After precision finishing, the silicon carbide surface maintains high accuracy, and the material itself exhibits a certain degree of wear resistance; therefore, Silicon carbide furnace tube They can rub against each other without their wear resistance diminishing, even at high temperatures.
4. Plasticity: As long as the manufacturing process can ensure it, the blanks can be directly pressed into various shapes, and they can also undergo secondary processing, guaranteeing that the products meet customer satisfaction.
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