Demonstration of pilot transverse flux heating continuous annealing line
This project investigated the possible application of transverse flux induction heating, currently used by aluminium manufacturers in Japan and Belgium, to the production of strip steel. The object was to produce a continuous annealing line for strip steel which would minimize running costs and shorten the duration of the cooling cycle, and to assess its industrial potential. Continuous annealing lines, on which thin metallic strip materials can be heated to high temperatures in a few seconds, have a high production capacity, in some cases over 1 million tonnes per year. Tests showed that rapid heating using the transverse flux induction method had potential for steel production, but raised a number of problems. A pilot project attempted to demonstrate that these could be overcome, and a continuous annealing line for strip steel was produced. This uses both natural and water mist cooling, which can be carried out at different points along the annealing line. The technique was applied to a range of strip steel grades, and 8 cooling modules were developed. The researchers conclude that this continuous annealing line, if run on a normal shift basis, represents a potential production capacity of 30, 000 tonnes of strip steel per year.
Bibliographic Reference: EUR 18397 EN (1998)
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Record Number: 199910480 / Last updated on: 1999-03-26
Original language: en
Available languages: en