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Korea unveils technology to cut steel heat-treatment emissi-Heat Treatment Exhibition-Industrial Furnace Exhibition-The 26th China(Guangzhou)International Heat Treatment, Industrial Furnace Exhibition
1/6/2026 热处理展-工业炉展-heat treatment expo-furnace expo |
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According to the Korea Institute of Energy Research (KlER), the institute has developed an electrified heattreatment technology that replaces fossil fuels with electricity in the annealing process used in galvanized steel.strip production for the automotive and household appliance sectors.
Furnace design preserves productivity and quality
According to KlER, the core of the new technology liesin its furnace design. The research team retained therefractory structure and steel-strip conveyingmechanism of conventional annealing furnaces, whileinstalling electric heating elements on both the upperand lower sections of the furnace. The institute statedthat precise control of the distance between the heatingelements and the steel strip enables rapid and uniformheating through high-temperature radiant heat, whileminimizing heat loss to furnace walls.
When applied to steel strips with a thickness of 0.49 mm annealed at 750°C, KlER reported that color,microstructure, and mechanical properties were equivalent to those achieved using combustion-based furnaces.while emissions were reduced by more than 98 percent.
Lower capex and compatibility with renewable power
KlER added that electric annealing furnaces eliminate the need for fuel and air supply systems, burners, andexhaust systems, reducing capital investment requirements and installation footprint by approximately 40percent. According to the institute, when powered by renewable electricity such as wind or solar energy, thesystem can enable a fully carbon-free heat-treatment process, supporting compliance with global environmentalregulations, including CBAM.
Future commercialization plans
Commenting on the project, Dr. Hookyung Lee, principal researcher at KlER, stated that this is the firstdemonstration globally showing that carbon-free heating can be achieved by simply replacing burners withelectric heating elements.
According to Dr. Lee, KlER plans to further develop the technology into an Al-based design and operationsystem that automatically recommends optimal heating-element configurations based on steel-strip width,thickness, and conveying speed. He added that the ultimate goal is to link the technology to commercial-scaledemonstrations with domestic steel producers and overseas markets.
热处理展-工业炉展-2026第二十六届广州国际热处理、工业炉展览会-巨浪展览-Heat Treatment Exhibition-Industrial Furnace Exhibition-The 26th China(Guangzhou)International Heat Treatment, Industrial Furnace Exhibition
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