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What is the primary function of a silicon carbide furnace tube?
Release time:
2022-08-10
Silicon carbide furnace tube Also known as refractory furnace tubes, these products are currently widely used in medium-frequency forging, metallurgical sintering furnaces, various electric heat treatment furnaces, the chemical industry, non-ferrous metal smelting, and other related industries. Due to their outstanding properties—including high strength, excellent wear resistance, high temperature resistance, corrosion resistance, high hardness, good thermal shock resistance, superior oxidation resistance, and high thermal conductivity—they are also employed in kilns and other application fields.
The furnace tube, made of absorbent material, is externally heated yet still maintains the necessary working environment inside. It not only serves as a supporting structure for the kiln but can also be used as combustion air ports in both natural gas and fuel-fired kilns.
Our Silicon carbide furnace tube Widely used in high-temperature environments, these furnace tubes are made from dense mullite or alumina. We can custom-manufacture various silicon carbide furnace tubes and solid rods according to customer-specified dimensions and tolerances, employing specialized manufacturing processes to produce high-precision silicon carbide furnace tubes.
Traditional furnace tubes are typically cylindrical, but they can also be manufactured in other shapes. However, silicon carbide furnace tubes are high-quality silicon carbide products made primarily from silicon carbide and produced through high-temperature sintering. They boast advantages such as high-temperature resistance and corrosion resistance. Both ends are equipped with specialized high-temperature insulating sleeves, which effectively prevent corrosion of the electric heating elements. All performance indicators of these tubes surpass those of various graphite products. At the same time, they exhibit excellent resistance to oxidation and thermal shock, and show no reaction even when exposed to strong acids or strong bases.
The standard finished length of silicon carbide furnace tubes can be customized according to the customer’s specific requirements. Their primary applications include use in dyeing and printing machinery, non-ferrous metal refining, aluminum degassing systems, zinc-aluminum refining, and finished-product processing.
Silicon carbide boasts high input impedance, low noise, and excellent linearity. It is one of the rapidly developing silicon carbide components and holds a leading position in commercialization. Compared to MOSFETs, it does not suffer from reliability issues caused by gate oxide defects or limitations imposed by low carrier mobility. Moreover, its unipolar operating characteristics enable it to maintain outstanding high-frequency performance. In addition, Silicon carbide furnace tube The structure exhibits superior stability and reliability at high temperatures; consequently, its threshold voltage is typically negative, making it a normally-open device. This characteristic is highly detrimental for power electronics applications and is incompatible with the specialized driver circuits currently in widespread use. Therefore, in modern applications, trench injection device technology has been introduced to develop an enhancement-mode device that operates in a normally-closed state. However, the formation of enhancement-mode devices often comes at the expense of certain forward-on-state resistance characteristics. As a result, normally-open (depletion-mode) devices are easier to implement and can achieve higher power density and current capacity. Meanwhile, depletion-mode devices can be configured in a cascaded manner to ensure a consistently off operating state. The cascading approach involves connecting low-voltage silicon-based MOSFETs in series. This cascaded driver circuit is ideally suited for replacing conventional silicon devices in high-voltage, high-power applications. Moreover, it is naturally compatible with standard silicon-based driver circuits, thereby directly eliminating any compatibility issues associated with driver circuits.
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Shandong Huamei New Materials Technology Co., Ltd.
Address: Middle section of Cuifang Street, Fangzi District, Weifang City