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WO/1995/000265A1 |
A single stand strip rolling mill is controlled by a signal representing the speed of the strip exiting the rolling mill. The rolling mill is controlled to keep the exit strip speed substantially constant. In this way the entry strip spe...
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WO/1994/017932A1 |
A method and apparatus for manufacturing metallic strip (20) with a varying thickness is described. The metallic strip is particularly for use as part of a windscreen wiper blade assembly. Feedstock (14) having a constant thickness and w...
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WO/1994/017933A1 |
The invention pertains to a tape take-up reel with an electric motor drive (A1, A2). In order to be able to wind tapes (B) in the shortest possible winding time, with constant tension on the tape, while providing a low technical complexi...
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WO/1994/011129A1 |
In a pair cross rolling mill, a true rolling load free from influences of a thrust load occurring during rolling and an actual difference in load between roll ends are calculated, and sheet thickness control and wedge control are carried...
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WO/1994/007618A1 |
The method proposed calls for the rotational speed of the rolls of a rolling mill to be controlled in such a way that the loops of rolling stock between each roll stand have a constant height. The last roll stand in the direction of roll...
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WO/1994/006581A2 |
The object of the invention is a process for manufacturing a formed body made by pressing or deep-drawing and having different wall thicknesses from an initially flat sheet metal part. Such a formed body, for example a beam (1), having a...
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WO/1994/006578A1 |
In order to suppress the influence of roll eccentricities upon the thickness of rolled products during regulation of the rolled product thickness in a roll stand, it is known to provide a dead zone insensitive to the signal fluctuations ...
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WO/1994/000255A1 |
The invention relates to an optimization of the control actions "c" via control members for the work rolls during flatness control of strip and comprises a method for evaluation of the control actions and an evaluation device which const...
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WO/1993/015854A1 |
The invention relates to a coolant and lubricant installation for rolling mills (1) in which material to be rolled, especially strip (2), is rolled in reversing mode. In order to be able to supply the rolling mill (1) with highly pure co...
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WO/1993/011886A1 |
A rolling schedule calculation process to set the reference rolling force and reference roll gap of a rolling frame in which, before a strip (1) of a predetermined grade is rolled, the reference rolling force (F*) is calculated from an e...
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WO/1993/010921A1 |
The purpose is to provide a control device for positioning the superstructure of a four-column roll stand which emits a control signal corrected for the error in the longitudinal measurement of the lift position to raise, lower or pivot ...
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WO/1993/004795A1 |
A rolling machine having a roll assembly consisting of a pair of opposed working rolls, and a reinforcing roll rollable on the outer circumferential surfaces of the opposed working rolls, characterized in that the reinforcing roll consis...
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WO/1993/000181A1 |
The invention relates to a regulation system in the production of hot rolled strips by means of a multi-stand hot rolling mill, especially a wide strip mill, having an overriding process management system which is given a reference plan ...
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WO/1992/019394A1 |
In conventional fabrication manufacture the thickness of the steel plates (16, 16') are often determined by the metal section required at the weld joints. The subject apparatus (10, 10') and method overcomes this problem by selectively f...
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WO/1992/014563A1 |
A control system for controlling a hot and/or cold rolling process by means of a process control system which executes a predetermined rolling programme containing the initial and final dimensions, material data, roll temperatures, etc. ...
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WO/1992/010316A1 |
The invention concerns a method for the automatic monitoring of continuous tube rolling mills, in which parameters governing the rolling process are measured and compared with predetermined reference values to produce process-control sig...
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WO/1992/001524A1 |
In the manufacture of metal strip, the strip is cast in a caster (1) and it is then passed through a temperature control zone (5) where the temperature of the strip is brought to a predetermined level. To adjust the temperature of the st...
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WO/1992/000817A1 |
The interstand tension of a multi-stand rolling mill is controlled by: (a) estimating interstand tension at each stand from measured values of roll speed, (b) measuring variables such as motor torque and/or roll separation force at each ...
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WO/1991/018688A1 |
The invention concerns the production of low-residual-stress strip and is applicable to the metal-forming field. The invention proposes that, during rolling, the gap between the finishing rolls is adjusted in n strip elements by adjustme...
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WO/1991/019164A1 |
An apparatus and method for controlling the quality of cylindrical or other geometrically regular-shaped products, such as tube or rounds, through high precision, continuous, real-time three-dimensional analysis of hot or cold products d...
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WO/1991/015312A1 |
In order for the difference between an actual value and a target value of the sheet profile of a product by a tandem mill to be reflected in the rolling of the next material, a load pattern for the next rolling material is changed accord...
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WO/1991/004108A1 |
A rolling mill has a pair of roll assemblies, at least one of which includes a controllable deflective roll. A first control circuit arranges for the support elements (5) of the roll to position the roll shell (2) in a desired position r...
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WO/1991/001827A1 |
A device for controlling the meandering of a rolled material, which is provided with means (15) for finding a leveling amount and polarity (15A) in rolling on the rolling mill by employing a 'fuzzy' inference technique on the basis of de...
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WO/1990/015885A1 |
When a steel material is cooled with a cooling belt, the temperature of the steel material is estimated based on the progress of transformation (variation of the transformation heat generation quantity relative with the variation with th...
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WO/1990/015679A1 |
In order to roll a taper on a workpiece, the gap between the rolls of a rolling mill is adjusted during the rolling. A transducer is provided to indicate the extent of the gap between the rolls and, from time to time, the rolls are broug...
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WO/1990/015678A1 |
When deforming an elongate workpiece (A), as by forging, rolling, or the like, it is necessary to know the exact position of the workpiece along its length with respect to the deforming means. To this end, one end of the workpiece (A) is...
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WO/1990/012664A1 |
This invention relates to a wire rod dividing method in wire rod mill which method is used for producing a plurality of wire coils from one slab by dividing the wire rod produced by wire rod mill on a rolling line. This equipment include...
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WO/1990/010508A1 |
The roller of the invention is designed in particular for rolling mills and metallurgical plants. The roller body has an axial bore passing through it, and a spindle with several stepped sections. The roller body is held by force against...
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WO/1990/009249A1 |
In the rolling of metal strip, a detector roll is used to determine variations along the width of the strip and to make sure that one lateral edge of the strip takes up a predetermined position with an individual roller on the detector r...
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WO/1990/006821A1 |
A multi-stand hot rolling mill has provision for interstand cooling and, in order to obtain rolled strip with the required profile, the amount of interstand cooling is changed during rolling to bring about a change in rolling load at one...
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WO/1990/005597A1 |
The roll stand of a rolling mill comprises frames (1), in which are mounted pillows (2, 4) of the upper and the lower driving roller (3, 5) together with their bearing assemblies (11), the pillows (4) of the lower driving roller (5) bein...
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WO/1990/000450A1 |
A device for either hot or cold rolling of strip material, particularly metal strip, comprises a control deflection roll (7) having elements spaced apart along its length for individually controlling the pressure applied by the roll at t...
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WO/1990/000451A1 |
The invention is directed to a system for controlling the gauge and width dimensions of elongated steel strips (17) processed in the finishing stage of a hot rolling mill (15). Loopers (L1-2, L2-3, L3-4, L4-5, L5-6, L6-7) located between...
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WO/1989/001654A1 |
A non-interfered control method and apparatus therefor in which an object to be controlled having a plurality of operation quantities and at least one control quantity is divided into a plurality of partial control systems, each of said ...
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WO/1988/009702A1 |
To prevent undulation and distortion of rolled, wound and subsequently unwound metal strip, the metal strip (4) is fed, after rolling, through a segmented measuring roll (1) and the forces exerted by the strip on the segments in order to...
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WO/1988/009230A1 |
A method and apparatus for controlling the temperature of a machine tool (e.g. mill rolls (7, 8)). A coolant or lubricant is fed from a header supply (22) to the primary inlet (21) of a fluidic device (20) such as a vortex valve. The out...
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WO/1988/009229A1 |
This invention relates to a method of hot rolling a fragile strip, and equipment for practicing the method. During a hot rolling operation according to this method, both side portions of a roll body including the portions of the same whi...
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WO/1988/007035A1 |
the invention is related to hydroxystyrene derivatives and salts thereof represented by general formula (I) (wherein R3 and R4 are bound to each other to form -CONH-CS-S-, (II), (III) or (IV) (wherein R6 is (V) (wherein X1 is H, halogen,...
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WO/1987/005837A1 |
A rotor module (2) for a shapemeter comprising a central arbor (7) linked to a non-rotatable ring (10) surrounding the arbor (7) by at least one web (9) and an outer cylinder (12) rotatable on bearings (13) on the ring (10) and means (16...
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WO/1987/005836A1 |
A rotor module (2) for a shapemeter comprising a central arbor (7), at least one bearing (9) on the circumferential surface of the arbor (7), a ring (10) rotatable on the bearing (9), an outer cylinder (11) supported at three or more loc...
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WO/1986/003435A1 |
A method of correcting the warping of a two-layer clad metal plate consisting of a parent member and a laminated member, in which the hot-correcting of the two-layer clad metal plate is done by cooling one of the metals that has a higher...
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WO/1986/002384A1 |
The sheet metal to be treated (6) is fed to a primary high cooling flux area (4) which is regulated so as to bring the surface temperature of the sheet metal to the temperature range corresponding to the desired structure. The cooling is...
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WO/1986/001440A1 |
A method for controlling winding temperature controls the cooling rate in the cooling step in hot rolling and controls the longitudinal pattern of a coil. The temperature of the coil piece in each cooling section is estimated by means of...
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WO/1985/000998A1 |
A method and apparatus for automatically controlling the thickness of product (12) emerging from a rolling mill. Signals indicative of total roll force (F), rollgap position (S), angular position (v) of a first mill roll and downstream p...
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WO/1982/003804A1 |
A method of controlling one stand (1) of a mill for rolling strip material (21), the mill having upper and lower back-up rolls (4, 5) and a pair of work rolls (2, 3) disposed between the back-up rolls, first and second screw means (L8, R...
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WO/1982/003932A1 |
Detection system for determining the lateral weave or sinusoidal variation in the edges of a continuous strip of sheet metals (S) during an uncoiling and coiling operation. The detection of the weave permits prompt corrective action to b...
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WO/1982/001834A1 |
In a metal strip rolling mill (10) having a strip shape measuring means (24) connected to said rolling mill (10) to adjust the mill to control the strip shape, improved strip shape control and performance is achieved by mounting a hold-d...
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WO/1982/001485A1 |
System for controlling the shape of a product in strip-rolling, wherein, in order to recognize the shape-pattern of a strip, to clear the corresponding relation between controlling actuators (10), (11), (12) and a certain wrong shape-pat...
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WO1982000108A1 |
A method for controlling the pressing distance of a press roll and to make the actual reduction in thickness of a pipe blank relative to the length of the pipe calculated from the temperature of the pipe blank on the input side of the re...
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WO/1981/001805A1 |
A load redistribution control apparatus for a continuous rolling machine to set and maintain the loads of a plurality of individual rolling machines along a singular, continuous item being rolled (hereinafter called strip) to maintain a ...
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