Silicon carbon rods have high operating temperature, high temperature resistance, oxidation resistance, corrosion resistance, fast heating up, long service life, small high-temperature deformation, convenient installation and maintenance, and good chemical stability.
Equipped with an automated electronic control system, precise and constant temperatures can be obtained, and the temperature can be automatically adjusted according to the curve according to the needs of the production process. Using a silicon carbide rod for heating is both convenient and safe and reliable. It has been widely used in high-temperature fields such as electronics, magnetic materials, powder metallurgy, ceramics, glass, semiconductors, analytical testing, scientific research, and has become an electric heating element for tunnel kilns, roller kilns, glass kilns, vacuum furnaces, muffle furnaces, smelting furnaces, and various heating equipment.
Molybdenum disilicide electric heating component is a resistance heating component based on molybdenum silicide. It is heated to high temperature in an oxidizing atmosphere, and a dense quartz glass film is formed on the surface to protect it from oxidation. Therefore, it has unique high-temperature oxidation resistance. Under oxidation atmosphere, its maximum temperature can reach 1800 ° C, and its applicable temperature is 500-1700. It can be used as a heating component for industrial high-temperature furnaces such as ceramics, magnetic materials, glass, metallurgy, refractory materials, etc. Our company can produce various models such as U-shaped, W-shaped, straight rod shaped, and right angle shaped according to user needs.
The mechanical properties of silicified electric heating components, like other ceramic products, are brittle materials that are prone to fracture at room temperature, which brings certain difficulties to transportation and installation. However, as long as they are installed reasonably and used properly, they can be avoided.
Advantage Of Our Company
Our company specializes in the design and production of heating tubes for the industrial sector. With our own factory and a team of experienced designers, we have over 30 years of expertise in the manufacturing and design of heating tubes. Our team of professionals is dedicated to providing our clients with high-quality products that meet their specific needs and requirements.
Our heating tubes are designed to provide optimal performance, energy efficiency, and longevity. We understand the importance of quality, reliability, and precision, and we take pride in producing heating tubes that are of the highest standards. Our team utilizes the latest technology and equipment to ensure that our products exceed industry standards and meet the demands of our clients.
We strive to provide excellent customer service and support, and we work closely with our clients to understand their needs and requirements. Our team is committed to finding innovative solutions to the challenges faced by our clients and providing them with products that exceed their expectations. After years of company development, we serve customers in over a hundred countries, especially in Asia and Europe. We provide millions of dollars of products to Asian countries every year
At our company, we believe in continuous improvement and innovation. We are constantly exploring new technologies and techniques to improve our products and services. Our dedication to quality, customer service, and innovation has earned us a reputation as a leading provider of heating tubes for the industrial sector.
Feature Of Furnace Heating Element(Silicon Carbon Rods)
physical property
Component texture: Hard and brittle, resistant to rapid cooling and heating, not easily deformed at high temperatures, and other physical properties are as follows:
Thermal conductivity: 20 kcal/meter · hour · degree
Linear expansion coefficient: 5 × 10-6 (m/℃)
chemical property
Silicon carbon rods have good chemical stability and strong acid resistance. Alkaline substances have corrosive effects on it under high temperature conditions.
Silicon carbon rod components can react with oxygen and water vapor for long-term use above 1000 ℃ as follows:
① Sic+2O2 → SiO2+CO2 ② Sic+4H2O=SiO2+4H2+CO2
As a result, the SiO2 content in the components gradually increases, causing a slow increase in resistance and aging. If there is too much water vapor, it will promote the oxidation of SiC, and the H2 generated by the ② reaction will combine with the O2 in the air to form a vicious cycle. Reduce component lifespan. Hydrogen (H2) can reduce the mechanical strength of components. Nitrogen (N2) below 1200 ℃ can prevent SiC from oxidizing and reacting with SiC above 1350 ℃, allowing SiC to decompose chlorine (Cl2) and complete the decomposition of SiC.
Feature Of Molybdenum Disilicide
Molybdenum disilicide electric heating element is a heating element based on molybdenum disilicide (MoSi2), which has excellent characteristics such as high temperature resistance, corrosion resistance, good airtightness, heat shock resistance, and long service life. It can be used as a heating element for industrial high-temperature furnaces such as ceramics, glass, metallurgy, magnetic materials, and refractory materials.
Compared with traditional heating elements, the specific advantages of molybdenum disilicide heating elements are as follows:
1) The usage temperature is high. In an air environment, the usage temperature of the 1700 type component is 1700 ℃, and the usage temperature of the 1800 type component is 1800 ℃, and it can be used for a long time.
2) The fast heating rate can rise from room temperature to the temperature used for operation within a few hours, mainly due to the good thermal conductivity of MoSi2.
3) At high temperatures, it is not easily deformed or oxidized, mainly due to the small thermal expansion coefficient of MoSi2, and the formation of a SiO2 passivation layer on the surface at high temperatures to prevent further oxidation.
4) Low power consumption, compared to heating elements such as graphite electrodes, it can save more than 10% of electricity, mainly due to the lower resistivity of MoSi2, which is 2 × 10-5 Ω· cm.