The electric heating radiant tube's core features an innovative configuration of U-shaped axially arranged end-welded resistance wires, supported by robust ceramic frames. This ingenious design allows for excellent heat dissipation, as no shielding exists between the inner core and the outer protective sleeve. It boasts a rated working temperature of 1000 degrees, with resistance wires crafted from Cr20Ni80 or 0Cr21Al6Nb, enhancing its durability. The surface can reach up to 1200 degrees, ensuring optimal efficiency. This sophisticated electric radiation tube is capable of enduring temperatures up to 1000 degrees, thanks to its high alumina ceramic support frame. The outer sleeve, made from a cold-drawn seamless heat-resistant steel pipe (1Cr25Ni20Si2 or 1Cr25Ni35Si2), offers exceptional resistance to high-temperature oxidation, creep strength, and carburizing. This meticulously selected design ensures a high safety factor. Further, the rated working temperature of another variant of this tube is 1200 degrees, with 0Cr27AI7Mo2 resistance wire, achieving surface temperatures of 1400 degrees. This variant can withstand a maximum of 1250 degrees for short durations, aided by a steel jade porcelain support frame. An outer sleeve composed of Fe Ni CrAI Re alloy, with high oxidation resistance, allows the tube to function reliably at 1300 degrees in oxidizing atmospheres and withstand short-term temperatures of 1360 degrees. Ideal for high-temperature, low oxygen, and SC environments, this tube is a testament to cutting-edge engineering.
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