Abstract: The work rolls of a planetary rolling mill are subject to high wear and must, therefore, be frequently reground to assure precision of the material rolled. With a life of the work rolls of about six hours, the expenditure of about 12 hours of a mechanic solely for the removal and reinstallation of the 48 rolls of a roll frame represents a considerable cost factor. To substantially reduce the time and expense of regrinding, a complete planet roll with cages and chocks is removed from a roll stand and clamped into a grinding device having a grinding wheel, and then the work rolls are ground, one after the other, in an installed state.

Abstract: To substantially increase the periods of time between the changing of rolling segments and to reduce the amount of work connected therewith in a roll stand for a planetary rolling mill, chocks in which stationary support bodies having rolling segments are mounted are provided with a square or octagonal disk shape, and each support body, instead of having one rolling segment as known heretofore, is provided with four or eight rolling segments distributed uniformly on its periphery. A turnable rolling ring is, further, provided at each end of each support body.

Abstract: Described is a coil collecting station for wire-rod mill trains with a coil collecting chamber consisting of a pre-collector, collecting pin and limiting cage, in which at least two collecting pins can be brought alternatively into a loading and/or discharging position by means of swing movements. The enveloping diameter of the collecting pin in the loading position is variable with respect to its diameter in its discharging position for a wire coil wound up thereon. For this purpose, said collecting pin consists of a plurality of pin rods, some of which being fixed and the other ones being supported radially movably with respect to said fixed pin rods.

Abstract: A metal casting device employs a number of pairs of mold members which can be opened or closed with respect to each other. The mold chamber pairs cooperate, in their closed state, to form a linear mold chamber. In order to compensate for shrinkage as the metal cools, the mold member pairs are movably supported by an endless chain, with the pairs of cooperating mold members being provided with contact faces having the same angle of inclination. Each mold member pair is also equipped with supporting rollers with which the associated mold chamber section can be closed or opened, as required.

Abstract: A twin-belt continuous casting mold has a guide assembly for the casting belts; the guide assembly includes a plurality of support rollers arranged serially parallel to the casting direction and engaging each casting belt along the mold chamber, and additional ribbed supports transversely engaging each casting belt in a zone upstream of the first support roller as viewed in the casting direction. There is provided a first resilient holding arrangement for positioning each additional support and resiliently urging it into engagement with a respective casting belt. The support rollers form a first and a second group; the first group is situated in a zone of the mold entrance adjacent the respective additional ribbed support downstream thereof. The guide assembly further has a second resilient holding arrangement for positioning each support roller of the first group for resiliently urging each such support roller into engagement with a respective casting belt.

Abstract: A twin-belt continuous casting mold has a mold chamber which is formed of parallel length portions of cooled upper and lower casting belts as well as parallel length portions of endless side dams which bound the mold chamber laterally. In the zone of the mold chamber the side dams are backed by adjustable guide rails. The continuous caster further has upper and lower caster frames which respectively support the end drums for the upper and lower casting belts as well as a series of support rollers for backing up the casting belts. There are further provided seals which are in engagement with the casting belts and which serve for sealing off the mold chamber from the environment. Opposite longitudinal edges of each casting belt are approximately flush with the outer wall faces of the respective side dams and the casting belt support rollers are shorter than the distance between the outer wall faces of the two side dams. The seals are situated laterally adjacent the support rollers and are resiliently supported.

Abstract: A refractory conduit assembly for the transfer of molten steel from a discharge vessel to an ingot mold of a horizontal continuous casting plant includes a replaceable spout member adapted to be removably connected at a predetermined location to the refractory lining of a vessel. The spout member has therethrough a discharge channel to receive from the interior of the vessel a flow of molten steel. A shut off device is provided to interrupt the flow to the discharge channel. A casting tube has therethrough a flow passage with inlet and outlet ends. A coupling device connects the inlet end of the flow passage to the discharge channel, such that the flow of molten metal passes through the casting tube. The outlet end of the flow passage has an altered cross-sectional configuration adapted to that of the ingot mold. A nozzle has an inlet end connected to the casting tube and an outlet end having thereat a portion to sealingly contact walls of the ingot mold.

Abstract: A twin-belt continuous casting apparatus has a central support assembly (formed of rollers) in alignment with the mold chamber and arranged for backing up a respective casting belt at a plurality of locations; and lateral support assemblies in alignment with a respective side dam of the apparatus for backing up a respective casting belt against the side dams. Each lateral support assembly comprises a plurality of serially-arranged rolling bodies and a guiding arrangement for guiding each rolling body for a rolling advancement in the casting direction through a length portion while contacting a respective casting belt and for returning each rolling body from a downstream end of the length portion to an upstream end thereof while being out of contact with and oriented away from the casting belt. The length portion extends substantially from the inlet of the mold chamber and has a length which is, at the most, one fourth of the length of the mold chamber.

Abstract: A feeding device for introducing molten steel into a twin-belt caster having mold walls which move exclusively in the casting direction. The feeding device comprises: a casting unit including a pouring pipe having a mouthpiece at one end which can extend between and form a sealing gap with the mold walls of a twin-belt caster, a first carriage moveable toward and away from a twin-belt caster and having the pouring pipe mounted thereon so that the pouring pipe is rotatable about a horizontal pivot axis and is laterally adjustable transversely to its longitudinal extent; a tundish mounted on a second carriage, which is disposed upstream of the first carriage and is independently moveable toward and away from the first carriage, so that the tundish is adjustable in height; and a compensating pipe for connecting the outlet of the tundish to the other end of the pouring pipe to permit molten steel to flow from the tundish through the pouring pipe.

Abstract: For the purpose of monitoring the casting belts during operation of the caster to detect damage or faults to the casting belts, a plurality of ultrasonic testing units, which are stationary with respect to the direction of rotation of the casting belts and which are each designed as to transmit/receive unit, are associated with each casting belt.

Abstract: To produce steel sheet cross sections, particularly those having a small thickness down to a lower limit of about 30 mm and a width of about 500 to 1500 mm, with high surface quality and at a high casting rate (about 10 m/min) at relatively low expense in continuous casting molds equipped with comoving mold walls defining a casting cross section or cavity, a tubular casting nozzle having a mouthpiece whose width at its exit cross section is less than 50% of the width of the casting cavity is utilized, and the space between the sidewalls of the mouthpiece and the adjacent lateral dams or sidewalls of the casting cavity is bridged by means of two symmetrically oriented rotating wheels provided with ceramic rims. The wheels are of a size such that they simultaneously form a seal together with the mouthpiece and the respective, oppositely disposed lateral dams and casting belts defining the casting cavity.

Abstract: In order to be able to manipulate a feeding device with which molten steel is introduced into a twin-belt caster without ingress of air in preparation for the casting process and to carefully align the feeding device and the caster to the required extent, the feeding device includes a pouring body which is mounted in its own carriage so as to be rotatable about a horizontal pivot axis, and a separately movable tundish which is connected with the pouring body via a ball joint which forms the point of separation in that the ball socket of the ball joint and the ball pivot of the ball pivot are each respectively associated with either the tundish or the pouring body. The pouring body can be arrested in the manner of a rocker in different sloped positions and can be laterally displaced in a direction transverse to its longitudinal extent.

Abstract: A continuous casting apparatus for a metal casting arranged to compensate for shrinkage of the casting in a cross sectional plane of the casting normal to the casting direction. The apparatus includes a pair of endless casting belts each spaced from and facing the other to form respective mold walls and arranged for movement in the casting direction. A pair of endless articulated mold walls, each spaced from and facing the other, is disposed between the casting belts and arranged to move with the casting belts in the casting direction. The spacing between the articulated mold walls and between the casting belts is greater upstream than downstream relative to the casting direction. Each articulated mold wall includes a plurality of dam blocks.

Abstract: A continuous steel casting apparatus includes a casting nozzle, a mold surrounding the casting nozzle and having moving mold walls together defining a rectangular casting cross section and being formed of oppositely located, parallel-extending endless casting belts and oppositely located, parallel-extending endless lateral dams. A sealing assembly provides a seal between the casting nozzle and the mold walls. The sealing assembly includes sealing levers situated between the casting nozzle and the casting belts. The sealing levers are movably mounted on the casting nozzle. Each sealing lever has a sealing face oriented towards a respective casting belt and extending parallel to the width thereof. Further, each sealing lever is resiliently urged into a sealing engagement with the casting belts. Side surfaces of the sealing levers sealingly engage the dams.