A guide roller for a continuous casting machine includes a roller seat having bearings, a roller shaft mounted for rotation in the roller seat and at least one roller body mounted on the roller shaft and configured to support a billet. A passive optical sensor is mounted to the roller seat and configured to output optical signals, and an optical fiber extends from the passive optical sensor and is configured to convey the optical signals to a processor configured to determine one or more physical parameters of an installation position of the passive optical sensor based on the optical signals.

Provided is a slab warpage detection apparatus detecting warpage of a slab drawn from a mold in continuous casting equipment. The slab warpage detection apparatus includes a pair of pressing roils that pinches the slab on a rear side of a roll segment, supporting the slab drawn from the mold, in a slab drawing direction, a movement unit that supports the pair of pressing rolls to be movable in a thickness direction of the slab, and a position detecting unit that detects positions of the pressing rolls in the thickness direction of the slab.

A bearing box for a rotating roller for supporting or transporting a high-temperature object. The bearing box includes a bearing and seal units disposed therein. A cooling jacket is disposed at an outer periphery of the bearing box so that the cooling jacket covers at least a portion of an axial region of the bearing and at least a portion of an axial region of the seal unit. The cooling jacket has a cooling water inlet and a cooling water outlet, and the bearing box is cooled by cooling water supplied to the cooling jacket through the cooling water inlet.

A guiding unit for slabs comprising at least two rolls (10, 10) connected to each other and adapted to rotate along a same axis X; wherein each roll comprises a first tubular element (12) and a second tubular element (5), which is external and coaxial to axis X and to the first tubular element and removable from said first tubular element; wherein cooling channels (3, 30) are provided in each roll between said first tubular element and said second tubular element for the passage of a coolant liquid; wherein each roll comprises a respective hub at its two ends; and wherein each hub is provided with cavities communicating with the cooling channels of the respective roll so as to define a path for the coolant liquid from a first end to a second end of the guiding unit crossing said at least two rolls.

A method of manufacturing a round steel billet by continuous casting includes a local cooling step where inhomogeneous forced cooling is applied to a cast product during the continuous casting, and a rolling reduction step where rolling reduction is applied to the cast product in the opposite directions of the polar opposites by reduction rolls in the course from the completion of solidification to the completion of the recuperation of the cast product so that rolling reduction r which is a reduction ratio of a distance between middle points of the polar opposites is set to a value exceeding 0% and 5% or less.

The present invention relates to a continuous caster roll for a continuous casting machine, having; a base portion and an overlay portion made of martensitic stainless steel. The steel of the overlay portion includes 12-14% by weight Cr (chromium), and the steel further includes 0.2-0.5% by weight Nb (niobium) which is a stronger carbide former than Cr, such that Cr will be kept in solid solution in the overlay portion. The balance being Fe (iron), other alloying elements and normally occurring impurities. In addition, a method to manufacture the continuous caster roll is disclosed, wherein the overlay portion is applied by any of weld cladding or laser cladding.

A seal cassette for a roll line in a continuous casting machine. The seal cassette configured to seal off a space from an outside environment and includes a first circumferential element and a second circumferential element arranged coaxially and rotatably movable relative each other. At least one third circumferential element is provided and is arranged coaxially relative the first and the second circumferential element and further arranged to be rotatably movable relative the second circumferential element. The first circumferential element is formed as a sleeve extending in an axial direction (A). The second circumferential element provides at least one circumferential seal portion arranged to seal between the second element and the first element. The at least one third circumferential element provides at least one circumferential seal portion to seal between the third element and the second element and further provides a circumferential seal portion that seals against the first element.

A six-high rolling (also known as sexto) mill stand that is suited for hot rolling an intermediate strip into a thin strip that is less than 0.8 mm thick. A combined casting and rolling installation that includes the six-high rolling mill stand allowing for hot rolling in long uninterrupted sequences, without any change of the work rolls to obtain a strip with good geometry due to moderate rolling forces.

Provided is a solidification apparatus that makes variations in the surface height of a molten metal relatively non-affected by the proceeding speed of a metal sheet to significantly increase the proceeding speed of the metal sheet and to increase the productivity of the metal sheet. The solidification apparatus for producing a metal sheet by solidifying molten metal includes rows of rollers arranged in a proceeding direction of the metal sheet, wherein when the rows of rollers are grouped into a plurality of sections, an average of roller pitches each being a distance between centers of rollers adjacent in the proceeding direction of the metal sheet is smaller in a given section than in a preceding section.

A roller device assembly, in particular for forming a strand guiding section (100) of a casting machine includes at least two roller devices each having a cross beam (30) and at least one roller element (10) supported on the cross beam (30) by means of roller bearings (20, 22), wherein guiding means for at least three different media are provided in the cross beam (30).