Abstract: The expansible metal anchor (1) for anchoring in a hole drilled in a component includes a shank part (2) and an expander cone (4) having a polygonal cross-section defining several faces (13) at its front end. On each face (13) of the expander cone (4) an expansible segment (5) is arranged spaced from that face by a gap (7) corresponding approximately to the distance (8) by which the expansible segments (5) project radially from the shank part (2). Each expansible segment (5) is joined to the shank part (2) at its end face directed towards the shank part (2) by web members (6, 6') constituting predetermined break points. As the expansible anchor is driven into the hole drilled in the component, the web members (6,6') break off, so that the expansible segments (5) are displaceable on the faces (13) of the expander cone.

Abstract: A method and an arrangement for manufacturing rolled wire sections and round steel sections in coils from carbon steels or high-grade steels. The arrangement includes a wire production line with a multiple-stand wire mill and a round steel production line with, for example, a multiple-stand round steel mill which branches from a common billet supply line including a billet furnace and a cooling bed, wherein the wire mill and the round steel mill are arranged next to each other. An aftertreatment unit following the production lines includes a coil forming station for round steel sections and for wire sections arranged following one of the two production lines, a transfer device for wire coils to the round steel production line, a coil forming device for wire sections arranged at the end of the wire mill, the coil forming device being followed by a transfer device for wire coils or round steel coils, and a coil conveying and cooling device arranged following one of the two production lines.

Abstract: In a rolling and cutting method for an endless hot-rolled steel strip comprising continuous hot rolling and joining rough-rolled slabs to each other with a joint having a boundary between slabs, subjecting the joined rough-rolled strip continuously to hot finish rolling to obtain an endless hot-rolled steel strip with a joint having a boundary between strips, cutting the endless hot-rolled steel strip immediately before coiling, and coiling each cut strip into a coil, the endless hot-rolled steel strip being cut such that the boundary between two successive slabs or sheets is positioned on the radially outermost face of the coil; the target cut point is set relative to the boundary by applying the tracking error of the boundary and the cutting control error for ensuring that the target cut point is accurately positioned on the radially outermost surface of the coil; the strip is kept from breaking at the boundary when coiled, and the coil as a final product can be produced with minimum scrap.

Abstract: To eliminate a vertically asymmetrical deflection, a rolling mill comprises a device for measuring horizontal deflections of upper and lower work rolls 2, 3 during rolling, a device for comparing values measured on the upper and lower sides and calculating the difference therebetween, and a horizontal deflection controller four determining whether the difference exceeds a predetermined range or not and imparting a horizontal bending to at least one of the work rolls. To eliminate a transversely asymmetrical deflection, a rolling mill comprises a device for measuring horizontal deflections of at least one of the work rolls at axially spaced positions during rolling, a device for comparing values measured on at the axially spaced positions and calculating the difference therebetween, and a horizontal deflection controller for determining whether the difference exceeds a predetermined range or not and imparting a horizontal bending to the one work roll at least one of the axially spaced positions.

Abstract: A method of controlling thermally alterable profiles of working rolls during hot rolling of strips having different width includes providing cover shells for the working roll, determining a position of edges of the rolling strip on the working roll, determining a position of thermally isolating cover shells, which cover longitudinal portions of the working roll in a region of the strip edges for influencing a temperature gradient of the working roll, and displacing the cover shells to selectively cover a longitudinal region of the working roll in a strip edge-contact region of the working roll with the rolling strip, and a longitudinal region of the working roll which does not contact the rolling strip during strip rolling. The cover shells and a mechanism for displacing the cover shells are parts of an arrangement for effecting the method.

Abstract: A vertical frame supports an interchangeable mandrel or die which receives the center portion of an elongated metal rod having opposite threaded end portions, and the rod is clamped to the die by a pivotal locking bar secured by a wedge actuated by a hydraulic cylinder. The frame also includes a vertical plate having upper and lower corner blocks connected by a pair of vertical guide rods. The rods support a horizontal carriage cross bar for vertical movement, and the cross bar pivotally supports upper end portions of a pair of arms each formed by rigidly connected parallel spaced plates having aligned straight cam slots. A pair of bending rollers are supported by the lower end portions of the arms, and a hub member extends between the plates of each arm and supports slide blocks which move within the cam slots. A hydraulic cylinder moves the cross bar vertically to move the arms and bending rollers along converging paths for overbending the rod around the die.

Abstract: A multi-stand roll train for longitudinally rolling seamless steel tubes in a continuous rolling process around an internal die using integrated two-high stands staggered by 90.degree. with correspondingly grooved rollers. The rollers are radially adjustable relative to one another, and at least the rollers of the final roll stand in the direction of rolling are divided along a central plane which vertically intersects the axis of the roller to form two halves. The two halves of the divided roller are axially adjustable relative to one another.

Abstract: This invention relates to a method and apparatus for simultaneously forming four metal rounds and includes disclosure of two pair of forming rollers, a preslitter roller pair and two pair of slitting rollers, the dimensioning of the ridges and grooves of which, in combination, serve to separate an entering bar into four strands of substantially equal area for simultaneous forming into metal rounds.

Abstract: System to roll at least two sections (13) in blocks of fast rolling mill stands, each fast rolling mill stand (11-12) including one pair of rolling rolls (17) supported as cantilevers and having alternately a horizontal axis (17o)/vertical axis (17v) or viceversa, the system comprising, in cooperation with the respective pairs of rolling rolls (17) of the block of fast rolling mill stands (11-12), a first guide box (15) for round sections which is positioned upstream of the first pair (11) of rolling rolls (17v), a second guide box (20) which receives oval sections and displaces at least partly at least two sections (13) from the rolling plane of the first pair of rolling rolls (17v) to a plane perpendicular to that rolling plane, a third guide box (24) with rolls which receives oval sections and aligns the same on the rolling plane of the second pair of rolling rolls (17o) and a fourth guide box (23) which receives round sections and displaces the sections (13) at least partly from the rolling plane of the s

Abstract: A method for controlling the stretching of rolling stock, particularly of pipes, by way of a pilot control system for the rolling stock taking into consideration measured physical values of the rolling stock. In order to be able to adjust the pilot control system as accurately as possible, in addition to or instead of an optical temperature measurement, the temperature in the interior of the rolling stock is determined by an integral measurement of a physical quantity proportional to this temperature and is superimposed as a signal on the pilot control system.

Abstract: A process for transforming the round shafts of nails into a multi-vaned profile involves supplying an oriented sequence of abuting identical nails to an indexing operation where the nails are separated and uniformly oriented, then feeding the nails head first downwardly into the nip of rolls which secure each nail by its head and form the round shaft of each secured nail into a multi-vaned profile. Apparatus for performing the nail transforming process includes an indexing mechanism, a downward feeding mechanism, and a set of forming rolls positioned to rotate in vertical planes.

Abstract: A cold pilger rolling mill which has a roll stand that can be moved back and forth, a pair of cranks each having a crankpin, a pair of thrust rods that connect the roll stand to the crankpins, and centrifugal counterweights connected to the cranks so as to be eccentric to the rotational axis of the crank to at least partially balance inertial mass. The centrifugal weights are staggered by 180 degrees to the connection point of the respective thrust rod and crank and each crank and its associated counterweights forms a submechanism. The submechanisms are arranged in a mirror image around a vertical plane which intersects a roll axis. A common drive is provided for driving the roll stand. The drive includes a drive shaft that connects the submechanisms to one another and is located beneath a rolling plane. The submechanisms have rotational axes that run horizontally parallel to one another, and the drive turns the cranks in opposite directions.

Abstract: A self-contained unitary assembly for peripheral devices normally located close to a Steckel mill is provided. The assembly has a frame open at both ends to receive and pass through the steel product being rolled. Above and below the pathway for the steel product are located transversely spaced arrays of descaler nozzles and their headers and also controlled cooling nozzles and their headers. Also included within the unitary assembly is the x-ray measuring gauge or other suitable measuring instrument for measuring some characteristic of the steel product. The unitary assembly is positioned between the pinch rolls and the Steckel mill. Protective steel plates or beams are provided running both transversely and longitudinally within the frame for the assembly to provide protection for the nozzles and measuring apparatus. These protective elements also serve to minimize the amount of errant water spray that might otherwise tend to enter the coiler furnace.

Abstract: An eccentric roller control apparatus is intended to eliminate the adverse effect of the eccentric upper and lower back-up rollers against a product profile with high precision. The rolling weight sensors 7W, 7D sense each rolling weight of a working side and a driving side. The rotary angles of the upper back-up roller 4T and lower back-up roller 4B are sensed by the angle sensors 8T, 8B. The roller eccentricity sensor 14 serves to derive each of the amplitudes A.sub.TWn, B.sub.TWn, A.sub.BWn, B.sub.BWn, A.sub.TDn, B.sub.TDn, A.sub.BDn and B.sub.BDn as each roller eccentricity of the working side and the driving side, based on the sensed rolling weights P.sub.W, P.sub.D and the rotary angles .THETA..sub.T and .THETA..sub.B. Then, the depression operating unit 15W serves to derive the depression of the working side and add the derived value to the depressor control device 6W.

Abstract: A rolling or continuous casting and rolling mill facility includes a roll set comprising working rolls defining a roll gap therebetween and support rolls, at least one of the working rolls and the support rolls having coaxial reduced diameter barrel portions defining measurement surfaces thereon; a measuring element for determining the roll gap by measuring a distance between the measurement surfaces, comprising a measurement head and a contact-free double sensor positioned on the measurement head; and an element for moving the measurement head between a working position wherein the double sensor is positioned in a rolling plane drawn through axes of rotation of the working rolls and aligned with the measurement surfaces and a rest position wherein the measurement head and double sensor are withdrawn from the rolling plane.

Abstract: According to the rolling method and the apparatus to be used for its execution of the invention, by rolling a tube to be rolled by using four rolls possessing roll grooves for forming a caliber in a shape of having a relief portion, cold reducing or cold stretch reducing is done continuously without causing wall thickness deviation, and by sizing the rolled tube material by a die disposed at the exit side, the dimensional precision and yield of rolled tubes may be enhanced by a small number of stands.

Abstract: An edging roll for rolling a shape having a web and flanges, including a main shaft having an eccentric shaft portion; an eccentric sleeve having an eccentric portion facing the eccentric shaft portion of the main shaft; web-restricting rollers attached to the eccentric shaft portion of the main shaft and the eccentric portion of the eccentric sleeve through bearings; flange rolling rolls attached to the main shaft and the eccentric sleeve through bearings; a flange rolling roll drive means having a pair of gear transmission means, a connection shaft, and a rotation drive means; a roll height adjustment means for integrally rotating the main shaft and the eccentric sleeve; a roll-width adjustment means for synchronously and mutually moving the main shaft and the eccentric sleeve; and further a roll width/height adjustment synchronizing means and a pair of guide rings may also be disposed.

Abstract: A sheet crown control method and apparatus for use in endless rolling in which consecutively fed sheets are joined to each other to be continuously rolled through a rolling equipment line. The rolling equipment line includes a junction device for joining consecutively fed sheets to each other, a plurality of stands arranged in tandem on the downstream side of the junction device and having a roll bender load adjusting mechanism and a roll crossing mechanism. The roll cross angle of rolls incorporated in a stand of each rolling mill is set at a predetermined value beforehand if there is a roll cross angle that will enable a target sheet crown to be applied to each sheet and the roll bender load of each stand is adjusted on-line, thereby effecting sheet crown control. Rolling also may be performed while adjusting the roll cross angle of rolls incorporated in stands of each rolling mill on-line together with the roll bender load.

Abstract: A device for adjusting a brush roll relative to a work roll in roll stand, particularly a roll stand for hot-rolling of aluminum includes pivotable supports mounted on both sides of the brush roll. The brush roll is rotatable in a direction opposite the direction of rotation of the work roll. The brush roll is displaceable in translatory movements parallel to the work roll. The pivot bearing of each brush roll support is arranged on a work roll chock, wherein the support includes a pivoting lever which is located between a controllable actuating element and a restoring support element. The actuating element is mounted in the balancing block or bending block of the roll stand and the support element is mounted in the chock.

Abstract: An apparatus for straightening wire stock includes a support member defining a generally elongated opening adapted for advancement of the wire stock therethrough, at least a first pair of engaging members associated with the support member and extending from a first direction sufficiently to engage the wire stock during advancement through the opening, at least a second pair of engaging members associated with the support member and extending from a second direction sufficiently to engage the wire stock during advancement through the opening, a mechanism for rotating the first and second pairs of the engaging members about an axis in general alignment with a longitudinal axis defined by the support member and a mechanism for selectively adjusting the positions of at least one of the first and second pairs of the engaging members relative to the longitudinal axis.