A method for producing a strip using a rapid solidification technology is provided. A melt is poured onto a moving outer surface of a rotating casting wheel, the melt is solidified on the outer surface and a strip is formed. A gaseous jet is directed at the moving outer surface and the outer surface of the casting wheel is worked with the jet. The jet comprises CO.sub.2 and at least part of this CO.sub.2 strikes the moving outer surface of the casting wheel in a solid state.

A method for producing a strip using a rapid solidification technology is provided. A melt is poured onto a moving outer surface of a rotating casting wheel, the melt is solidified on the outer surface and a strip is formed. A gaseous jet is directed at the moving outer surface and the outer surface of the casting wheel is worked with the jet. The jet comprises CO.sub.2 and at least part of this CO.sub.2 strikes the moving outer surface of the casting wheel in a solid state.

A strand guide segment for a continuous casting plant, which strand guide segment has an upper frame, a lower frame and position-controlled hydraulic cylinder units for setting the distance between the upper frame and the lower frame and, as a result, a strand thickness of a strand to be guided by the strand guide segment. A first end of each hydraulic cylinder unit is mounted on the upper frame. At the second end of the hydraulic cylinder units, facing away from the upper frame, each hydraulic cylinder unit is detachably connected by a respective flange connection to a respective tie rod which, at its end facing away from the flange connection, is mounted on the lower frame. The invention further relates to a corresponding continuous casting plant.

A roller stand for a continuous billet casting machine, having a carrying frame for mounting at least one lower supporting roller and at least two lateral supporting rollers. The lateral supporting rollers are mounted elastically on the carrying frame by means of at least one passive elastic element, and have an amount of elasticity at least in a direction perpendicular to the axes of rotation of the lateral supporting rollers. A method for determining the position and/or the shape of a billet is provided. During passage through at least one roller stand, alterations in the position at least of the lateral supporting rollers relative to a reference are detected and, on the basis of this information, the shape of the billet and/or the position of the billet in relation to the center line of the billet-guide channel are/is determined.

An induction coil assembly associated with controlling the flow of molten material used in casting or deposition of precious and/or non-precious metals on a substrate is disclosed. The assembly comprises one or more induction coils associated with induction melting of electrically conductive material by applying a predetermined current value. The assembly further comprises a crucible comprising the electrically conductive material in which an electromagnetic field is generated therein by the predetermined current value applied to the induction coils. The electromagnetic field associated with the electrically conductive material is modulated; and is used to generate smaller units of the electrically conductive material by interrupting velocity of a flow of the material in order to produce grains or apply layers on the substrate. Corresponding methods are also disclosed.

A defect detection and remediation system can be used to detect and remediate sub-surface defects within a cast metal during the continuous casting stage. The system can include a detection device having one or more detection units to detect a defect within the cast metal using ultrasonic waves and a remediation device having one or more remediation units to remediate the defect detected by the detection device in a target area of the cast metal containing the detected defect.

An apparatus for continuous casting a metal strip and reducing snake eggs in the metal strip. A pair of counter rotating casting rolls through which a thin strip can be cast are provided. A metal delivery system is disposed above the nip for discharging molten metal into a casting pool supported on the rolls. A pair of side dam holders and a pair of side dams are assembled adjacent each end portion of the rolls. Each side dam holder is tapered and dovetails with an adjacent side dam to confine the casting pool of molten metal supported on casting surfaces of the rolls. An oscillation mechanism provides lateral oscillation to each side dam and side dam holder at a frequency 2-50 hertz and with an amplitude 100-2000 μm during casting.

The invention relates to a method for producing foundry ingots (1) from metal, in particular from steel, having a cross-sectional area of more than 0.1 m.sup.2, wherein liquid metal (2) is discharged into an ingot mold (15) open at the bottom either directly form a casting ladle (11) or via a tundish (12), and wherein, by a drawing piston (28), which is vertically movable in the direction of a longitudinal axis (5) of the foundry ingot (1) and on which the foundry ingot (1) is at least indirectly arranged, the at least partially solidified foundry ingot (1) is drawn from the ingot mold (15) in the direction of the longitudinal axis (5).

Continuous casting apparatus comprising a plurality of compression units (11), each of which is defined by a lower roll (12) and an upper roll (13) configured to exert a compression action on a cast metal product (P). Each lower roll (12) defines with the respective upper roll (13) a passage gap (14) for the metal product (P). The passage gaps (14) of the compression units (11) are disposed aligned along a casting axis (Z) with an at least partly curved development. A straightening roll (15) is disposed on the extrados side of said casting axis (Z) and between at least two of the lower rolls (12).

A device (100) for covering the welding area for hot rolling lines consists of an outer container (1), a protective shield (2), a blade-holder (3) with scraping blades, and an actuator (9). Protection occurs by linearly sliding the protective shield (2) outside the outer container (1) up to minimizing the gaps with the billets. The cleaning occurs at the same time as the return to the rest position: the scraping blades, which are integral with the container (1) and are installed in contact with the inner surface of the protective shield (2), slide thereon during the raising, thus colliding with the deposits of solidified material and removing them. Completing the device (100) additionally is a small alternating linear motion of the protective shield (2) during operation to always keep the attachment area of the scraping blades clean, thus avoiding the need for excessive detachment forces at the beginning of the raising.