초록 ▼

Water-cooling slabs by dipping to yield steel sheets with a minimum of scabs and uneven gloss, with their larger faces upside and underside, by water injection at a flow rate of 10-150 L/m.sup.2.multidot.min perpendicular or oblique to the underside of the slabs, with the position of water injection

Water-cooling slabs by dipping to yield steel sheets with a minimum of scabs and uneven gloss, with their larger faces upside and underside, by water injection at a flow rate of 10-150 L/m.sup.2.multidot.min perpendicular or oblique to the underside of the slabs, with the position of water injection 30-500 mm away from the underside of the slabs.

대표청구항 ▼

[ What is claimed is:] [1.]1. A method for water-cooling a hot metallic slab having a temperature higher than 500.degree. C., comprising: dipping the slabs in water under the surface thereof, wherein said slab has larger faces and smaller faces, and wherein said dipping is carried out with the large

[ What is claimed is:] [1.]1. A method for water-cooling a hot metallic slab having a temperature higher than 500.degree. C., comprising: dipping the slabs in water under the surface thereof, wherein said slab has larger faces and smaller faces, and wherein said dipping is carried out with the larger faces of the slab arranged as the upside and underside thereof, and injecting liquid water by water injectors beneath the underside of the slab directed toward the underside but not the upside of the slab under the surface of said water in which said slab is dipped, in such a way as to inject liquid water flow on said underside of said slab at a flow rate sufficient to effectuate water cooling of said slab, wherein said cooling is performed in such a way as to avoid precipitation of carbides in said slab.