Introducing the cutting-edge heating core of the electric heating radiant tube, meticulously crafted with U-shaped axially arranged end-welded resistance wires complemented by sturdy ceramic support frames. Ingeniously designed without a shielding layer between the inner core and outer protective sleeve, this assembly ensures excellent heat dissipation. The electric radiation tube boasts a remarkable rated working temperature of 1000 degrees, utilizing choice materials such as Cr20Ni80 or 0Cr21AI6Nb for the resistance wire, achieving surface working temperatures of up to 1200 degrees. Exceptionally engineered to perform, this electric radiation tube is constructed to reach a maximum working temperature of 1000 degrees with high alumina ceramic parts for the support frame. The outer protective sleeve consists of a cold-drawn seamless thin-walled heat-resistant steel pipe, made of 1Cr25Ni20Si2 or 1Cr25Ni35Si2, offering outstanding resistance to high-temperature oxidation, high creep strength, and limited carburizing resistance. Designed with a high safety factor, the electric radiation tube's rated working temperature is elevated to 1200 degrees with 0Cr27AI7Mo2 resistance wire, allowing surface temperatures to soar to 1400 degrees. For short-term applications, it withstands up to 1250 degrees. Reinforced by a steel jade porcelain support frame, the protective sleeve is crafted from a Fe Ni CrAI Re alloy, showcasing high oxidation resistance, capable of enduring prolonged exposure to 1300 degrees Celsius in oxidizing atmospheres, with short-term resistance at 1360 degrees Celsius. This system is ideal for high-temperature, low-oxygen partial pressure, and SC-containing environments.
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