CELES EcoTransFlux, transverse flux induction
Conventional heating rates of around 70˚C/s are often insufficient for the complex heating and cooling cycles required to process advanced high strength steel (AHSS) or similar grades in continuous galvanizing and annealing lines. High-flux induction heating solutions offer an alternative to conventional steel strip heating processes, which that mainly rely on natural gas as an energy source. Transverse flux induction heating technology is a proven alternative for very rapid heating with up to 400°C/s.
By injecting up to 2MW/m2 of energy into a strip in a homogeneous manner, it can be heated well beyond the Curie point at 760°C at any early stage of the process, even for non-magnetic steels.
CELES EcoTransFlux™ solution offered by Fives is a high power transverse flux induction heating technology that enables the optimization of steel grade metallurgical properties while reducing greenhouse gas emissions and acid wastes. It primarily functions as a booster or annealing device on carbon steel annealing and galvanizing lines, as well as stainless and silicon steel processing lines.
CELES EcoTransFlux™ heats magnetic and nonmagnetic steel strips at extremely high speeds and temperatures with superior efficiency. As it heats metal strips in a non-oxidizing atmosphere, it results in a significant reduction in NOx and CO emissions.
CELES EcoTransFlux™ technical features
- A quick-response system with direct transfer of energy (on/off concept) and low thermal inertia
- Patented conductors allowing thermal efficiency above 75% regardless of strip format
- Patented design providing homogeneous temperature of +/-10˚C or better
- A versatile, compact and economical solution
Annealing process criteria for new automotive steel grades
In order to meet annealing process criteria for new automotive steel grades, CELES EcoTransFlux™ is designed for rapid heating cycles:
- Higher heating density with 2MW/m2 of steel strip
- Higher treatment temperature above 900°C
- Higher temperature increase up to 400°C/s
Direct benefits for a final product include improved mechanical resistance (+5-10%) and the preservation of elongation capability.
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