The electric heating radiant tube's core is ingeniously engineered with U-shaped end welded resistance wires and ceramic support frames, ensuring unparalleled heat dissipation due to the absence of shielding between the core and its protective sleeve. Crafted for robust performance, this radiant tube operates with a rated working temperature of 1000 degrees Celsius, utilizing either Cr20Ni80 or 0Cr21AI6Nb resistance wire. Its surface temperature can soar to an impressive 1200 degrees. For superior safety and efficiency, the support frame comprises high alumina ceramic components, while the outer protective sleeve is constructed from a cold drawn seamless thin-walled heat-resistant steel pipe, made of either 1Cr25Ni20Si2 or 1Cr25Ni35Si2. These materials are celebrated for their exceptional high-temperature oxidation resistance, superb creep strength under heat, and moderate resistance to carburizing environments, ensuring the device's longevity and reliability. For even higher demands, the tube's rated working temperature can be elevated to 1200 degrees using 0Cr27AI7Mo2 resistance wire, achieving a surface temperature of up to 1400 degrees. When short-term applications arise, the device can endure temperatures up to 1250 degrees, supported by steel jade porcelain frames. Its outer protective sleeve, made from Fe Ni CrAI Re alloy, boasts remarkable oxidation resistance, operating admirably in oxidizing atmospheres up to 1300 degrees Celsius, while withstanding short-term exposures up to 1360 degrees. This advanced design is ideal for environments characterized by high temperatures, low oxygen, and SC presence.
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