The diameter of silicon carbide rods is generally 8-60mm. They can be used as high-temperature electric heating elements in atmospheres such as air, nitrogen, hydrogen, ammonia decomposition gas, inert gases, and vacuum. They are widely applied in industries including ceramics, magnetic materials, glass, metallurgy, powder materials, rare earth chemical engineering, electronic components, metal processing, refractory materials, and research institutions.

Intermittent silicon carbide element electric furnace design power resistance calculation: The total power required for the furnace is calculated based on heating power, heat loss, and heat storage power. Note that since silicon carbide heating elements work at high temperatures for extended periods, they gradually age, leading to increased resistance and reduced power. To adjust to the required power in time, the transformer power should be 60-100% greater than the total required power. Select the element specifications according to the furnace size. After determining the maximum furnace temperature, calculate the power of a single element by multiplying the surface load specified for the element at this temperature by the surface area of the heating part. Divide the total power by the power of a single element to determine the number of elements to install. Determine the resistance of a single element based on the circuit diagram.

The allowable current for silicon carbide rods of different diameters and specifications varies. Larger diameters allow higher currents, while smaller diameters allow lower currents. The current magnitude can be adjusted using configured power regulators or silicon-controlled rectifiers (SCR). The resistance measurement of silicon carbide rods is performed using specialized electrical testing equipment to measure high-temperature resistance. Room temperature measurements are not conducted, as using instruments like multimeters results in significant errors. Therefore, the resistivity of silicon carbide rods at lower temperatures (20°C) is uncertain. Heat the silicon carbide rod by applying electricity to raise its temperature to 1000-1100°C, record the voltage and current at this temperature, and calculate the resistance value using Ohm's law: R = V/I.

Dengfeng Minghui High-Temperature Components Co., Ltd. produces and customizes silicon carbide rods of equal diameter, U-type silicon carbide rods, right-angle silicon carbide rods, H-type, h-type, gate-type, threaded-type, five-section rods, groove-type silicon carbide rods, and thick-end silicon carbide rods, among others. The products feature stable quality and uniform heating. Welcome to inquire.