Rev. Met. Paris
Volume 103, Number 4, April 2006Haut-fourneau
|Page(s)||174 - 179|
|Published online||27 April 2006|
Prevention of slab surface transverse cracking at Kashima n° 2 caster with Surface Structure Control (SSC) cooling
Transverse cracking may occur in high strength low alloy CC slabs. This phenomenon is associated to a hot ductility trough resulting from intergranular ferrite that forms at the beginning of the γ-α transformation. Sumitomo has developed a hot tensile machine and a unique slab surface microstructure control process to improve hot ductility. The process based on controlled accelerated secondary cooling has been successfully implemented on Kashima n°2 caster.
© La Revue de Métallurgie, 2006
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