Abstract: In a sizing rolling method carried out by installing at least 3 sets of 4-roll rolling mills in series, a central angle &thgr;1 of the perfect circle forming section of each rolling roll in a first path is set to less than 15°. The central angle &thgr;3 is set to at least 45° in a third path and the central angle &thgr;2 is set to at least 30° in a second path B. The groove of each rolling roll is arranged such that each escape section is composed of the tangential line of an arc formed by the perfect circle forming section. A roller guide having four guide rollers is installed on the inlet side of the second path and the free surface of a workpiece is held and guided by the guide rollers. An angle &agr; of the V-shaped groove of each guide roller is set similar to the angle (90°+&thgr;1) between straight lines forming the escape section of the adjacent rolling rolls in the first path. With this technology, even if a wire has a diameter of 7.

Abstract: A multi-stand block for a rolling mill comprises a plurality of roll stands alternately arranged on opposite sides of a pass line along which a product is rolled in a downstream direction from an entry end to an exit end of the block. Drive shafts are provided on opposite sides of the pass line. The drive shafts comprise coaxial segments interconnected by couplings, with each roll stand being connected to a respective one of the line shaft segments. A block drive is connected to the line shafts at the upstream end of the block, and the couplings are selectively disconnectable to mechanically isolate any downstream line shaft segments and the roll stands connected thereto from the block drive.

Abstract: The present invention provides a finish hot rolling method for structural steels capable of realizing enhanced dimensional accuracy and a uniform microstructure, using a 2-stand 3-roll finishing mill, wherein an area reduction rate of the final finishing pass is 10 to 20% and the value of an area reduction rate of the final finishing pass divided by the corresponding area reduction rate of the pass preceding the final finishing pass is 0.7 to 1.3.

Abstract: The present invention relates to a wire rod rolling line in which a finishing mill group rear stage is composed of a combination of a plurality of 4-roll mills. An object of the present invention is to provide a wire rod rolling line having a very high operating ratio capable of expanding a size free rolling range and at the same time capable of arranging pass schedules in which the pass schedule of an upstream pass is simplified in order to shorten a line stop time for adjusting mills. To achieve the object, the wire rod rolling line of the present invention is arranged such that three mills from the end of the finishing mill group are 4-roll mills, these three mills are installed in series with the reducing directions thereof dislocated by 45°, the two mills from the end are driven by a common motor and the third 4-roll mill from the end is separately driven.

Abstract: A method of continuously rolling a ferrous workpiece into a finished round, comprising rolling the workpiece in successive first and second roll passes at an elevated temperature of between about 650 to 1000° C., the first and second roll passes each being defined by two work rolls and being dimensioned to effect a combined reduction in the cross sectional area of the workpiece of at least about 20-55%, with an accompanying effective strain pattern dominated by a concentration of maximum effective strain at a central region of the cross sectional area; and while the effective strain pattern remains dominated by a concentration of maximum effective strain at a central region of the cross section, continuing to roll the workpiece in at least third and fourth consecutive roll passes, each of the third and fourth roll passes being defined by at least three rolls and being sized to effect a combined reduction in the cross sectional area of the workpiece of not more than about 4-25%.

Abstract: A three-roll-type reducing mill including three forming rolls brought into contact with an outer periphery of an electro-resistance-welded steel tube for reducing its diameter. Two left and right sliding brackets respectively mounted with two follower forming rolls are sidden symmetrically with respect to a center of a main forming roll and simultaneously only by rotation of a single adjusting screw shaft, thereby enabling the diametrical reduction of the steel tube to be adjusted on-line and speedily.

Abstract: The invention relates to a mill for rolling pipes or other bodies such as flat blooms, bars, rods and the like. The rolling mill is formed by an outer load-bearing structure in which holders are accommodated so as to be extractable therefrom; in the holders there are mounted lever arms (18, 19, 20) that are pivotable transversely to the rolling axis along which the pipes or bodies to be rolled advance. The arms support the working rolls (48, 49, 50) at one end and, at the other end, are secured to the respective holder by means of a pin (22, 23, 24). In the rolling mill of the invention, there are advantageously means for rotating the olders about the rolling axis; this enables the rolls (48-50) to be brought back to the ideal working condition when their dimensions are reduced as a result of periodic machining to which they are subjected for maintenance and their working attitude can no longer be reestablished solely by the swinging movement of the lever arms (18-20) that support them.

Abstract: A multi-strand finishing block finishes two or more daughter strands slit from a parent bar. Each strand is rolled by at least two pairs of rolls arranged in tandem with the rolls of each pair being at right angles to the rolls of the other pair. A common drive shaft is in driving relation with all the pairs of rolls.

Abstract: A system is disclosed for applying a liquid lubricant to first and second components enclosed in a housing, with the lubricant applied to the second components being exposed to contamination by a liquid coolant applied to the exterior of the housing, and with the lubricant applied to the first components being substantially isolated from the liquid coolant. The system includes a partition internally subdividing the housing into a first chamber containing the first components and a second chamber containing the second components. Lubricant is delivered from a storage tank to the housing for application to the first and second components. A first conduit network communicates with the first chamber for returning the lubricant applied to the first components to the storage tank, and a second conduit network communicates with the second chamber for returning lubricant applied to the second components to the storage tank.

Abstract: A roll train includes a plurality stands positioned in series, wherein the stands are of at least two different types, one stand type being alternated with the other one. Each one of the stands has four rolls, opposed to each other in a two by two disposition, and at least one stand has two driven rolls opposed to each other wherein two stands in sequence have a rotational displacement angel of 45.degree. about the axis of the rolls of the stands.

Abstract: A steel billet is reduced to a bar in a hot steel mill rolling operation by plural reductions successively produced by passage of a workpiece through a series of reducing mill stands. Each mill stand produces a workpiece having a rhombic shaped cross sectional configuration during a reduction passage through each mill stand. The plastic deformation of the workpiece produced by the rollers in each mill stand not only reduces the cross sectional area of the workpiece but also reverses the major and minor axes of the rhombic cross section of the workpiece during passage through each mill stand.

Abstract: A final finish-rolling stand of a rolling machine for producing round bar material is constructed as an eight-roller type rolling machine comprising: front four rollers of "+" distribution and back four rollers of "X" distribution which are contained in one housing block. Only one driving source is used for the rolling machine, and the driving force from the driving source is transmitted to one roller of the front four rollers to forcibly drive this roller. The remaining rollers are freely rotatable and rotate synchronously with transfer of the material being rolled so as to carry out rolling down of the material. Structure of the rolling machine is simple and adjustable range of sizes of the product is wide.

Abstract: In a modular rolling mill gear units are installed between selected rolling units in place of other rolling units which haven removed from the mill pass line to thereby provide a gap in the rolling sequence. Each gear unit is coupled to the drive units previously coupled to the respective removed rolling unit, and is configured to provide a continuation of the mill drive train end to accommodate operation of the next subsequent rolling unit at the speed of the respective removed rolling unit. The gear units carry water boxes or other equivalent cooling devices which serve to lower the temperature of the product between successive roll passes.

Abstract: A roll pass of a roll set having three rolls for a multi-stand mandrel-free stretch reducing mill has a roll pass shape that deviates from the circular. A tube is passed in its longitudinal direction through the non-circular roll pass shape enabling modification of a shape of a cross-section of the tube, so as to counteract the non-circular external diameter deviations of the tube. A final roll pass (finishing pass) of the stretch reducing mill is locally enlarged at peripheral points where the tube diameter of the entering tube would otherwise deviate downward from a target size and locally reduced in size at the peripheral points where the tube diameter would otherwise deviate upward from the target size.

Abstract: A rolling mill for rolling pipes on a mandrel (40) is formed by an alignment of rolling units according to the invention, each rolling unit comprises an outer annular structure (2) formed by at least two plate-shaped elements (3) connected rigidly to one another and housing a roll carrier (10) on which the rolling units (27,28,29), supported by respective pivoting lever arms (19,20,21), are disposed. Each roll carrier (10) can be removed transversely from its rolling unit which, for this purpose, is provided with guides (15) in addition to a loading-unloading device (50) on which the removed carrier is placed. The outer annular structure (2) enables the rolling unit and the corresponding rolling mill better to withstand the radial stresses produced during working, the replacement of the rolls of the respective carriers (10) at the same time being simplified by virtue of their lateral movement.

Abstract: Disclosed is a rolling unit (10) consisting of two roll stands (12, 14). The roll stands (12, 14) each have pairs of openings (24a) defined through a housing (24) to locate on each side of the pass line (PL), and a pair of eccentric members (26) each having an eccentric opening (26a) are rotatably inserted in these openings (24a), respectively, with a predetermined space being secured axially therebetween. A pair of roll shafts (28), on which rolls (13, 15) are fitted to be rotatable integrally therewith, respectively, are rotatably inserted through these eccentric openings (26a). A pair of adjusting shafts (32) are rotatably disposed in the housing (24). A pair of worms (34), which engage with toothed portions (26b) are fitted on each adjusting shaft (32) to be rotatable integrally therewith. A gear, which is engaged commonly with the adjusting shaft (32). The positions of the rolls (13) can be varied by rotating the adjusting gear via the eccentric members (26).

Abstract: A steel bar is made by first producing a continuously cast forgeable steel strand of generally square cross section with flat beveled corners at a temperature above a transformation temperature. This strand is then cut into billets which are passed through a succession of pairs of rollers and compressed with the rollers with a pressure sufficient to compact a core of the billets without substantially lengthening the billets.

Abstract: A block-type roll stand arrangement for single strand rolling including roll stand housings mounted on a support structure. The roll stand housings are all of the same construction and each receives a pair of roll support shafts and the drive gear units therefor. The roll stand housings are arranged one behind the other with the roll support shafts being alternatingly inclined at an angle relative to the rolling line. Stiffening ribs are arranged between the plate support members. The stiffening ribs are connected to the side surfaces of the plate support members and to the base plate. The stiffening ribs may be composed of angle sections with a symmetrical angle cross-section, wherein the parallel outer edges of the angle sections rest on the base plate and whose angle-shaped front and rear side edges rest against the side surfaces of the plate support members.

Abstract: The rolling apparatus 1 comprises a first roller-couple 101a,101b and a second roller-couple 102a,102b which are arranged adjacently in a feeding direction of work material A1 and roll the work material A1 in different directions each other successively. Each of the first and second roller-couples comprises two rollers each of which has a groove for determining the cross sectional shape of the wire on the circumferential surface thereof. The width of the grooves are less than 7 mm for the first roller-couple 101a,101b and are less than 6 mm for the second roller-couple 102a,102b. The center distance between the first and second roller-couples 101a,101b and 102a,102b is less than 50 mm.

Abstract: A roll pass design for the sets of rolls of a non-mandrel type multiple-stand pipe reducing mill, each set of rolls having three rolls. In order to improve the roll pass design so that the flow of material in the pipe is acted upon locally in such a way that the occurrence of local thickening of the pipe wall at critical points along the circumference of the pipe during reduction is decreased, the magnitude of the curvature of the roll pass flanks of at least a plurality of sets of rolls succeeding one another in the rolling direction increases by constant amounts or by equal percentages.

Abstract: Compact rolling block comprising at least one rolling mill stand having a horizontal axis and at least one rolling mill stand having a vertical axis, two end rolling mill stands having the same axis and being separated by a central rolling mill stand having an axis substantially at 90.degree.

Abstract: A method of and an apparatus for rolling a rod as a starting material and producing a wire of 5 mm or smaller diameter, the method and apparatus using a continuous rolling mill comprising a plurality of round-grooved four-roll stands arranged in tandem, wherein the grooved four-roll is displaced between adjacent rolling stands by 45 degrees relative to each other around the pass line and the center-to-center distance between adjacent rolling stands measured in the pass line direction is not greater than 50 times the diameter of the rod. The front end portion of the rod is fed at slow speed into the continuous rolling mill, the front end portion being guided by a front pipe to the center of the round groove, and the front end portion is wound on a coiler.

Abstract: Fast rolling block (10) employed in a compact rolling line for long products such as bars, round bars, wire rod and analogous products, the fast rolling block (10) comprising rolling mill stands (11) arranged in sequence with pairs of rolls (13) having alternate axes and installed alternately opposite to each other on a base (14), the base (14) comprising at least one horizontal base plate (15) extending parallel to the horizontal plane containing the rolling axis (12) and comprising also transverse plate elements (17) spaced apart and bearing on their upper edge (20) elements (19) for installation of the rolling mill stands (11), there being included longitudinal connecting elements (16), each transverse plate element (17) having a minimum width ("L") equal to 70% of the width of the horizontal base plate (15), the longitudinal connecting elements (16) extending between one transverse plate element (17) and the adjacent one.

Abstract: The rotational speed of the rolls of a rolling mill is controlled such that the loops of rolled material between two roll stands have a constant height. The last roll stand in the direction of rolling preferably acts as a guide roller stand, whose speed is controlled. The loop height is controlled by adjusting the rotational speed of the roll stand ahead of the loop.

Abstract: This invention relates to a novel method and apparatus for producing cold finished bar flats with improved bright surface condition. The bar flats are produced by a rolled method in a continuous economical process. A strip is fed to a shaving apparatus for removing burrs formed during slitting. Cold finishing rollers perform cold reduction of the strip to a predetermined thickness. Edge conditioning rollers smooth the edges of the strip and size the strip to a predetermined width. Preferably, the edge conditioning rollers alternate with the cold reduction rollers.

Abstract: A single strand block-type rolling mill has pairs of oppositely inclined work rolls arranged successively along a mill pass line to roll rod and bar products in a twist-free manner. A planar base structure extends in parallel relationship beneath the mill pass line. A plurality of housings are arranged seriatim along the mill pass line. The housings are secured to the base structure and have mutually overlapping portions secured to one another. Each housing includes intermediate drive components for driving a pair of roll shafts carrying one of the work roll pairs, with the intermediate drive components being mechanically coupled to each other and to a common mill drive.

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: 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: The present steel stock shaping apparatus includes a rolling apparatus which includes a plural set of 3-roll apparatuses disposed along a steel stock transferring direction in series, a precision rolling 3-roll type sizing apparatus 1 which is adapted for shaping, a carbon-material-made guide apparatus 5 which has a guide bore 50 adapted for guiding a sized steel stock "W" to a subsequent process. The inner diameter of the guide bore 50 is set so that it is larger than the outer diameter of the steel stock "W" having a circle cross section by 0.1 to 8 mm, and accordingly the clearance between an inner wall surface 55 of the guide bore 50 and the steel stock "W" is made extremely small. In addition, the axial length of the guide bore 50 is set longer, and accordingly, when a bending at the leading end of the steel stock "W" enters the guide bore 50, the bending is corrected by the inner wall surface 55 of the guide bore 50.

Abstract: A light-section wire mill includes a breaking-down train with a plurality of roll stands, at least one intermediate mill, and a finishing block arranged downstream of the intermediate mill for rolling a single-wire or a multi-wire rolling stock having a circular cross-section and made of a high-grade steel. A temper pass block with at least two roll stand units is arranged downstream of the finishing block. The wire mill further includes a cooling and temperature equalizing apparatus located between the finishing block and the temper pass block.

Abstract: A process and unit for hot- and cold-rolling ferrous and non-ferrous metals in order to produce a round bar or wire rod from a round bar or wire rod having a larger diameter. The process consists in inserting a bar or wire rod, whose initial profile has a round cross-section, in a rolling unit which is provided with rolling rolls whose profiles define a round passage whose diameter is smaller than the diameter of the input bar or wire rod. Upstream from the rolling unit, the larger-diameter bar or wire rod is subjected to the action of free rollers whose profiles are suitable to deform the larger-diameter bar or wire rod according to a shape which produces, in output from the rolling unit, a bar or wire rod whose cross-section is round and has a smaller diameter.

Abstract: A four-roller type sizing mill apparatus for forming round steel rods, comprises two four-roller mills each having two pair of facing rollers. One pair of facing rollers is arranged in rolling direction perpendicular to the rolling direction of the other pair of rollers. The two four-roller mills are arranged in line, with the rolling direction of one of the two four-roller mills being shifted by 45.degree. from the rolling direction of the other four-roller mill. The two pair of rollers of a first four-roller mill positioned closer to the rolling material inlet are separated from each other by a distance which is greater than zero and not greater than five times the projected contact length of one of the pair of rollers positioned closer to the rolling material inlet.

Abstract: A rolling train for rolling girder sections includes at least one two-high reversing roughing stand and a plurality of subsequent universal stands for work rolling and finish rolling. Two universal stands and an upsetting stand are combined to form a reversing tandem group. A universal sizing stand for passing rolling is arranged immediately subsequent to the tandem group. The universal stands of the tandem group have double-cone shaped vertical rolls and the universal sizing stand has cylindrical vertical rolls. The girder section is rolled in several successive passes with the flanges of the section being directed outwardly and the outwardly directed flanges are rolled so as to extend parallel in a last smoothing pass.

Abstract: A method and an arrangement for finish rolling wire and/or round steel on a continuously operating finish rolling block. The finish rolling block includes a plurality of work rolling sets and sizing rolling sets with essentially round sizing rolls, wherein the rolling sets are arranged closely one behind the other and the rolling planes thereof are alternatingly offset relative to each other by 90.degree.. The method includes imparting a twist to the rolled material by asymmetrically spreading the rolled material in the two sets of rolls which precede the last set of rolls, wherein the twist imparted in the two sets of rolls has approximately the same magnitude but is directed in opposite directions, so that the rolled material is stabilized in its position in the last sizing roll pass.

Abstract: In a single strand rolling mill wherein a product is rolled in a twist-free manner through a succession of finishing stands before proceeding to a laying head, the finishing stands are grouped into at least first and second blocks arranged respectively along first and second non-aligned paths, with the laying head lying on the second path. Switches are employed to alternatively direct the product exiting from the first block either to the second path for continued rolling in the second block prior to being directed to the laying head, or along a third path bypassing the second block and leading directly to the laying head.

Abstract: A method and an apparatus for obtaining narrow tolerances of accuracy to pe and size of a rolled product rolled in a wire mill and/or bar mill including at least two sizing stands of high stiffness wherein, with the exception of the last stand, the stands are adjustable under load. The stands cooperate with a device for determining the geometrical data of the rolled product, as well as the relevant rolling operation data. The device is mounted in front of the next-to-last stand for detecting the geometrical data of the rolled product before it enters into the next-to-last stand. The measured values are processed with a sizing model for obtaining a desired exact profile shape in the last roll stand in a computer for forming a signal which is used for adjusting the next-to-last stand.

Abstract: A block type rolling mill has a plurality of roll stands arranged along a mill pass line, each roll stand having at least a first pair of work rolls mounted in cantilever fashion on a first pair of roll shafts. The first roll shafts have first pinion gears which are separate from each other and in meshed relationship respectively with one of a pair of intermeshed spur gears carried on a pair of intermediate drive shafts, with one of the intermediate drive shafts of each roll stand being coupled to one of two line shafts extending in parallel relationship to the mill pass line. At least one of the roll stands is provided with a second pair of work rolls mounted in cantilever fashion on a second pair of roll shafts. The second pair of roll shafts have second pinion gears which are separate from each other and each in meshed relationship respectively with one of the intermeshed spur gears of the at least one roll stand.

Abstract: A combined, continuously operating high-speed light-section and wire mill composed predominantly of so-called cantilever stands or CL stands with overhung-mounted collars. In the roughing train and in the intermediate train and/or in the finishing train, some rolling mill stands with a modular unti with double-mounted collars are arranged. A CL modular unit of the CL stands with overhung-mounted collars can be exchanged as required against a modular unit with double-mounted collars. The second bearing of the modular unit is arranged in a box stirrup which can be coupled to the gear box of the CL stand. The collar can be assembled and disassembled with an automatically actuated, preferably hydraulically acting quick fixing device which includes piston-cylinder units for clamping and releasing the collar on the shaft in axial and in radial direction. The modular unit is a roll box of sandwich construction with box plates which can be separated from each other.

Abstract: A high-speed rod and wire mill, particularly for single-strand, twist-free rolling. The mill includes a roughing train, at least one intermediate train and a subsequent finishing train, wherein each of the trains includes several rolling mill stands or rolling units. A finishing stand set may follow the finishing train. For a minimized series of passes in each train section, the roughing train has a crane tool for exchanging the rolls, the intermediate train has a manipulator for exchanging the rolls and the finishing train has a quick-exchange device for changing the rolls and possibly an additional manipulator. All rolling mill stands or rolling units in the individual train sections have overhung-mounted and removable rolls, so that the yield of the mill is increased.

Abstract: A compact rolling mill for rolling sections includes rolling stands such as universal rolling stands and two-high rolling stands arranged along several rolling lines. Provided in the rolling lines are longitudinal conveyors for transporting the rolling stock along these rolling lines and cross conveyors for transporting the rolling stock between the rolling lines. At least two universal rolling stands are combined with one two-high edging stand to define a universal tandem compact group which together with further universal stands and two-high rolling stands may be displaced from one rolling position to another rolling position in a same rolling line or in a different rolling line. The drive unit is directly coupled to the stands along the outermost rolling line while the other remaining stands are indirectly connected to the drive unit transversely across the other rolling lines via other rolling stands.

Abstract: Method and system for high-speed rolling at about 120 to 140 meters per second and more for rolled stock having a round section and a diameter of 5.5 to 6.5/7 mm. or equivalent, the high-speed rolling being carried out with a system comprising at least one rolling assembly (11) and a coil-forming headstock (12), the rolling assembly (11) including a plurality of pairs of rolls with their axes placed alternately at about 90.degree.

Abstract: A plate-like rolled material fed from a continuous casting equipment is rolled by a vertical mill for width control. A pair of horizontal mills are disposed one on each of the entry side and the delivery side of the vertical mill. Both the horizontal mills are controlled in their speeds to impart a predetermined tensile force to the rolled material without effecting thickness control of the rolled material. The roll speed of the horizontal mill disposed on the delivery side is controlled to be higher than that of the horizontal mill disposed on the entry side. This enables preventing of failure in the shape of the rolled material.

Abstract: Rolling stand with multiple rolls supported as cantilevers for high-speed rolling, which comprises a motor unit (16-15) that actuates at least one common shaft (22a) which transmits motion to a plurality of pairs of rolls (11-12) with their axes placed alternately substantially at a right angle to each other (11a, 12a, 11b, 12b . . . 11n, 12n), the stand including from six to ten pairs of rolls (11-12), the rolled stock being kept under traction between one pair of rolls (11-12) and the next pair (11-12), cooling chamber means (13) followed by temperature equalization chamber means (14) being included between the pair of rolls (12) which processes round sections and the pair of rolls (11) which processes oval sections, the length of the cooling chamber means (13) being at least a function of the rolling speed of the pair of rolls (12) positioned upstream of that cooling chamber means (13), the cooling chamber means (13) being progressively longer in the direction of feed of the rolled stock.

Abstract: A method for adjusting and changing the heights of the plane of passage of a material being rolled through rolls of a rolling stand of a shape rolling mill including a flange upsetting stand arranged between two universal stand, the height adjustment for changing the plane of passage of the material being rolled being caused by raising or lowering the rolling stand or parts of the rolling stands carrying these rolls, and the height of the passage plane of the material being rolled through the rolls of this flange upsetting stand being controlled, changed and fixed in the course of the rolling operation for correcting the web central position of a shaped steel profile relative to the adjusted plane of passage of the remaining rolling stands.

Abstract: A no-twist ("NTA") apparatus and method for manufacturing steel reinforcing bar which allows steel reinforcing bar to be manufactured with greater speed and precision than by conventional methods. The NTA method employs numerous stands, with the shafts of the rolls of the first two stands offset 45.degree. from a predetermined plane and 90.degree. from each other. The third and fourth stands comprise rolling and splitting stands and are the shafts of their rollers are perpendicular or parallel to the predetermined plane and form equal angles with the shafts of the first two stands so that the bar can be fed to the rolling and splitting stands without intermediate twisting and the single bar can be split into a plurality of bar segments. The remaining stands are arranged into at least two lines of stands, in each of which the sides of the rolls of the first stand are offset 45.degree. in a first direction from the predetermined plane and the sides of the rolls of the second stand are offset 45.degree.

Abstract: A compact rolling mill for rolling sections includes rolling stands such as universal rolling stands and two-high rolling stands arranged along several rolling lines. Provided in the rolling lines are longitudinal conveyors for transporting the rolling stock along these rolling lines and cross conveyors for transporting the rolling stock between the rolling lines. At least two universal rolling stands are combined with one two-high edging stand to define a universal tandem compact group which together with further universal stands and two-high rolling stands may be displaced from one rolling position to another rolling position in a same rolling line or in a different rolling line. The drive unit is directly coupled to the stands along the outermost rolling line while the other remaining stands are indirectly connected to the drive unit transversely across the other rolling lines via other rolling stands.

Abstract: An apparatus for processing wire or rods includes a plurality of driven fixed rollers for feeding the wire or rod through the apparatus, each fixed roller having an axis of rotation normal to the central access of the wire rod. A plurality of adjustable rollers is provided for engaging the wire rod and imparting a plastic deformation thereto. Each adjustable roller has an axis of rotation and the adjustable rollers are offset from the fixed rollers. A device is provided for moving the adjustable rollers from a position out of engagement with the wire rod to a position engaging the wire rod. A device is also provided for independently adjusting the adjustable rollers so that the planes defined by the axis of rotation of the adjustable rollers are set at an adjustable angle to the central axis of the wire rod so that a desired torsion can be applied to the wire rod. A wire bending device is also provided for bending the wire or rod, and a cutter is provided for cutting the wire or rod.

Abstract: An operating method and a rolling mill train for continually rolling a profiled billet to a predetermined finished cross-sectional shape of accurate dimensions by means of successively arranged rolling mill stands with pairs of rolls, wherein the axes of the pairs of rolls extend perpendicularly to each other. The pairs of rolls have oppositely located pass screws which determine the cross-sectional shape of the rolled steel section billet which travels through the pairs of rolls. The billet is sized in one or more roughing stands locally in a circumferential portion of the cross-section thereof which, after leaving the last roughing stand, runs in the subsequent main stand into the region of a contact line of the two rolls of the main stand, such that the entire material of the billet running into the main stand completely fills out the pass of the main stand without significantly deforming the region of the contact line of the two rolls of the main stand.

Abstract: A roll-forming apparatus is specifically designed to handle metal wires or other wire stock that is not for or is difficult for use in a drawing process, so that it can provide a reduced-diameter wire in a roll-forming process. The apparatus comprises a framed structure having four sides within which a pair of roll-forming rollers are arranged in parallel, one roller being powered by a driving power source, and the other roller being interchangeable. For a typical application, a plurality of such apparatuses may be arranged in series such that each unit is oriented at a right angle with regard to its adjacent unit.

Abstract: The present invention related to a wire-rod block which forms part of a wire rolling line and which includes two roll rings, between which the wire rod is rolled, and which further includes an input drive shaft and a gearing for transmitting the drive torque of the drive shaft to the roll rings. According to the invention, the input shaft (10) drives one of the roll ring shafts directly, via a first bevel gear (13) and also an output drive shaft (12), via a gear (11). The output drive shaft, in turn, drives the shaft of the other roll ring, via a second bevel gear (14), wherein the transmission ratios of the gear (11) and the bevel gears is such that the roll rings will rotate at mutually the same peripheral speeds.