Class / Patent application number | Description | Number of patent applications / Date published |
072110100 | Sensing work or product (e.g., by X-ray) | 53 |
20080196466 | System for leveling metal strip - An apparatus for leveling thin metal strip moving longitudinally generally in a plane in a travel direction has at least one upstream roll rotatable about an axis and engaging the strip, at least one downstream roll rotatable about an axis and engaging the strip downstream of the upstream roll, and a drive connected to at least one of the rolls for exerting tension on the strip between the rolls. In accordance with the invention pivoting one of the rolls is pivoted about an axis substantially perpendicular to the plane or parallel to the direction so as to vary the tension in the strip across a width of the strip and thereby locally plastically deform the strip to level it. | 08-21-2008 |
20080295556 | Controlled Metal Foil Production Process, Apparatus for Performing the Production Process, and Metal Foil - A process produces structures which are superimposed on one another in a metal foil section. The process includes producing a primary structure using a first tool, and transferring the metal foil section to a second tool, the second tool having at least one shaping profiled roller which is responsible for transferring the metal foil section. A secondary structure is produced using the second tool. A spatial position of the primary structure and the secondary structure is determined in at least one subregion of the metal foil section. An incorrect position is detected and an operating parameter of the at least one profiled roller is adapted in dependence on the detected incorrect position. An apparatus is suitable for this process and produces metal foils which are suitable for the production of catalyst support bodies that can be used in exhaust systems of internal combustion engines. | 12-04-2008 |
20090235707 | Method For The Operation Of A Rolling Mill Used For Milling A Strip-Shaped Rolling Stock - Disclosed is a rolling mill comprising a roll stand with working rolls, a roll train located at the feeding end of the roll stand, and a control device. The working rolls form a roll gap. The control device triggers the roll stand such that the working rolls rotate at a certain peripheral speed while triggering the roll train located at the feeding end of the roll stand in such a way that the leading edge of the strip-shaped rolling stock reaches the roll gap at a feeding speed that is greater than the peripheral speed. The control device adjusts the peripheral speed and the feeding speed to each other in such a way that a potential angled position of the leading edge relative to the roll gap is at least reduced as a result of said adjustment. | 09-24-2009 |
20110138868 | Method for Leveling Parts in a Roller Leveling Machine - A method for leveling parts in a roller leveling machine, which includes an upper and a lower roller frame, and in which upper and lower leveling rollers are each arranged in a separate leveling roller block, at least one of the leveling roller blocks being variable in its position and angle so that the leveling gap can be adjusted, wherein at least one leveling gap setting device is arranged at the infeed side and at the outfeed side of the leveling machine, and an automatic leveling gap control is provided to set the leveling gap. The method includes determining, for each leveling triangle of the roller leveling machine, an offset value based on the thickness, width, and bending moment of the part to be leveled and characteristics of the leveling machine including a max deflection of the roller frame, and readjusting a setting device of the leveling gap as a function of the leveling triangles mapped onto the part to be leveled as it moves through the leveling gap. | 06-16-2011 |
20110162423 | LINEAR MATERIAL AND STATOR STRUCTURE - A stator structure includes: a stator core ( | 07-07-2011 |
20110308288 | ROLLING MILL TEMPERATURE CONTROL - For controlling the flatness of the strip during the rolling of aluminium strip or foil, the system consists of a full width bank of cryogenic roll cooling devices acting on the roll(s) and a full width bank of roll heating devices also acting the roll(s). Both or either of the cooling and heating banks are divided into individually controllable zones. A process automation system controls the action of the cooling and heating banks via feedback from a strip shape meter and/or a predictive process model, in order, by thermal growth/contraction, to create the best roll profile for rolling flat strip. | 12-22-2011 |
20130186156 | METHOD AND LUBRICATION APPLICATION DEVICE FOR REGULATING THE FLATNESS AND/OR ROUGHNESS OF A METAL STRIP - A method and a lubricant application device for regulating flatness and/or roughness of a metal strip in the outlet of a cold rolling stand by suitable metering of the amount of a lubricant per unit time applied to the metal strip in the inlet of the cold rolling stand. The invention that the applied amount of lubricant is metered in the form of a quantitative distribution over the width of the metal strip per unit time according to a detected control deviation between an actual and a desired flatness distribution over the width of the metal strip in the outlet of the cold rolling stand or a control deviation between an actual and a desired roughness distribution over the width of the metal strip in the outlet of the cold rolling stand or a combination of the two control deviations. | 07-25-2013 |
20130319061 | BENDING ASSEMBLY AND METHOD THEREFOR - The present invention relates to a bending assembly for bending a workpiece. The assembly includes a bending apparatus configured to bend the workpiece and form a curved portion of the workpiece. The curved portion of the workpiece has a longitudinal periphery and a curvature. The assembly includes a camera configured to produce an image of the longitudinal periphery of the curved portion of the workpiece. The assembly includes a processor configured to receive the image of the longitudinal periphery of the curved portion of the workpiece. The processor is configured to identify a plurality of measuring points spaced-apart along the longitudinal periphery of the curved portion of the workpiece. The processor is configured to determine the curvature of the curved portion of the workpiece based on the measuring points. | 12-05-2013 |
20140174141 | ROLLING SYSTEM AND ROLLING METHOD - A rolling system, particularly a cold-rolling system for cold-rolling a metal strip ( | 06-26-2014 |
20140230508 | STRAIGHTENING APPARATUS - The invention concerns an anode straightening apparatus ( | 08-21-2014 |
20150298187 | AUTOMATIC GUIDE ADJUSTMENT FROM FEEDBACK OF ROLLING PARAMETERS - In a rolling mill in which a hot rolled product is directed by a guide along a delivery path into a roll pass aligned on a mill pass line, a control system is disclosed for correcting any transverse misalignment of the delivery path with respect to the mill pass line. The system compromises an adjustment mechanism for shifting the guide transversely with respect to the mill pass line. Detectors measure a selected parameter indicative of the transverse misalignment and generate status signals representative thereof. A controller responds to the status signals and automatically and remotely operates the adjustment mechanism to correct the misalignment by transversely shifting the guide with respect to the mill pass line. | 10-22-2015 |
20150320471 | SURGICAL ROD BENDING SYSTEM AND METHOD - A system and method for bending a surgical rod using an automated bending system includes receiving an indication of a plurality of line segments defined on the rod and an indication of an angle measurement to be formed between at least two adjacent ones of the plurality of line segments. Bending parameters to perform on the rod to form the angle measurement between the at least two adjacent ones of the plurality of line segments are determined and operation of the automated bending system is controlled using the bending parameters to create an angle having the angle measurement between the at least two adjacent ones of the plurality of line segments. | 11-12-2015 |
072110200 | Including plural sensors or sensor responsive to plural conditions | 8 |
20100139350 | METHODS AND APPARATUS FOR CONTROLLING FLARE IN ROLL-FORMING PROCESSES - Methods and apparatus for controlling flare in roll-forming processes are disclosed. An example method involves predefining a plurality of position values to adjust a tilt angle of a flange roller and adjusting the tilt angle of the flange roller based on one of the pre-defined position values to change an amount of flare in a zone of a component. The one of the pre-defined position values is associated with the zone of the component. | 06-10-2010 |
20130186157 | DUAL CASCADE CONTROL SYSTEM FOR A LONG ROLLING MILL - A system for maintaining a continuous speed in a long rolling mill is provided that includes a plurality of guide rollers that feed a billet product from a caster to an entry roll stand along a mill pass line to an exit roll stand. Also, the system includes a plurality of gauges positioned at a plurality of locations along the mill pass line, the gauges perform speed measurement of the billet product passing along the guide rollers. Furthermore, the system includes a logic controller that receives the speed measurement and maintains a speed relationship where the speed between the caster and the entry roll stand is constant as well as the exit speed of the end roll stand is also constant. | 07-25-2013 |
20140137617 | PINCH ROLL DEVICE FOR ROLLED METALLURGIC PRODUCTS - A pinch roll device ( | 05-22-2014 |
072110300 | Sensing temperature | 2 |
20110162424 | METHOD AND APPARATUS FOR COOLING AND DRYING A HOT-ROLLED STRIP OR A METAL SHEET IN A ROLLING MILL - A method for drying a strip ( | 07-07-2011 |
20120067095 | METHOD AND DEVICE FOR PREPARING HOT-ROLLING STOCK - A method and a device have high energy efficiency and high descaling performance, with which high-quality rolling stock can be produced. In a method in which the rolling stock is heated in an induction furnace and subsequently descaled, before the rolling stock is rolled in a rolling stand or rolling relay, the heated rolling stock is descaled by at least one rotating water jet from a rotary descaler; then at least one temperature of the descaled rolling stock is respectively recorded by a temperature measuring instrument and delivered to a controller; and the controller determines at least one control parameter with the aid of a control rule and by taking into account a setpoint temperature, and delivers it to a control component, at least one inductor of the induction furnace being driven so that the temperature of the descaled rolling stock corresponds as far as possible to the setpoint temperature. | 03-22-2012 |
072110400 | Sensing slack or tension (e.g., by use of dancer) | 1 |
20100064749 | COLD ROLLED MATERIAL MANUFACTURING EQUIPMENT AND COLD ROLLING METHOD - Cold rolled material manufacturing equipment comprises: an unwinding device ( | 03-18-2010 |
072110600 | Sensing cross sectional dimension | 2 |
072110800 | Sensing thickness | 2 |
20080216537 | Flaw detection apparatus and method for tubes - A flaw detection apparatus and flaw detection method for automatically detecting the occurrence of a flaw in a mother tube manufactured by rolling a hollow shell using a mandrel mill are provided. | 09-11-2008 |
20130019646 | METHOD OF CONTROLLING OPERATION OF TANDEM ROLLING MILL AND METHOD OF MANUFACTURING HOT-ROLLED STEEL SHEET USING THE SAME - Provided is a method of controlling operation of a tandem rolling mill which enables large reduction rolling in the latter-stage stand of the tandem rolling mill necessary for manufacturing fine-grained steel, and so on. The method comprises: a step of determining a first exit-side sheet thickness in rolling a constant portion of a material to be rolled; and a step of determining a second exit-side sheet thickness in rolling a front end portion of the material, such that a pre-tightening load becomes a set value or less; the material is rolled into the second exit-side sheet thickness, until the front end portion is fed into the stands; the constant portion is rolled by the stand given a pre-tightening load into the first exit-side sheet thickness; and the second exit-side sheet thicknesses of the stands given the pre-tightening load are made larger than the first exit-side sheet thickness. | 01-24-2013 |
072120200 | Sensing temperature | 5 |
20080196467 | Stretch-leveling metal strip - A metal strip is stretched as it is moved longitudinally generally continuously between an upstream traction-roll set and a downstream traction-roll set. The roll sets are differentially driven—with the downstream set moving at a slightly higher peripheral speed than the upstream set—so as to apply to the strip in a region between the sets a tension generally equal to a stretch limit of the strip. The strip is locally heated or cooled at an upstream location in the region between the roll sets so as to set in the strip in the region a temperature distribution that is nonhomogeneous transversely across the strip at least immediately downstream of the upstream location. | 08-21-2008 |
20100095722 | METHOD AND APPARATUS FOR HOT-ROLLING METAL STRIP USING NEAR-INFRARED CAMERA - A hot-rolling line, a method for photographing the entire width of a hot-rolled metal strip, a method for recording the photographic result of the entire width, a method for appropriately performing quality assurance, and a method for producing a hot-rolled metal strip using them, provide proper quality assurance for delivering a product to a customer. A hot-rolling line includes a near-infrared camera arranged to photograph an entire width of a hot-rolled metal strip on an entry side of a coiler of the hot-rolling line. | 04-22-2010 |
20110247381 | CONTROL SYSTEM - A certain embodiment includes a predictive temperature calculator ( | 10-13-2011 |
20120073342 | APPARATUS FOR MEASURING THE TEMPERATURE OF A ROLLING MATERIAL - An apparatus for measuring the temperature of a rolling material is capable of accurately measuring the temperature of a rolling material by putting a temperature-measuring unit in contact with a surface of the rolling material that is extracted from a heating furnace and conveyed on a roller table to the next process, and moving the temperature-measuring unit contacting the surface of the rolling material together with the rolling material in the conveyed direction thereof. | 03-29-2012 |
20150328670 | METHOD AND DEVICE FOR DYNAMICALLY SUPPLYING COOLANT TO A COOLING DEVICE FOR COOLING METAL STRIP OR OTHER ROLLED STOCK - The present invention relates to a method of dynamically supplying coolant to a cooling device, in particular at least one spray bar, for cooling metal strip or other rolled stock. According to the method, a pre-accelerated stream of coolant is provided, which passes by the cooling device ( | 11-19-2015 |
072120300 | Sensing slack or tension (e.g., by use of dancer) | 6 |
20080271508 | Method and Device for Measuring and Adjusting the Evenness and/or Tension of a Stainless Steel Strip or Stainless Steel Film During Cold Rolling in a 4-Roll Stand, Particularly in a 20-Roll Sendzimir Roll Stand - A method and device for measuring and adjusting the evenness and/or tension of a stainless steel strip ( | 11-06-2008 |
20090044583 | Measuring straightness of an elongated rolled workpiece - An elongated workpiece is treated, e.g. rolled, in a production system where treatment devices move the workpiece longitudinally in a horizontal travel direction and at a generally constant travel speed along a horizontal longitudinal path and a control computer is connected to the treatment devices. Straightness of the workpiece is measured by gripping the workpiece at a pair of longitudinally spaced supports, applying tension to a longitudinally extending horizontal portion of the workpiece between the supports, and continuously moving the workpiece in the travel direction at the travel speed with a lower surface of the portion substantially unsupported. At least periodically a vertical spacing is measured between the portion and a straight longitudinal reference line extending in the direction between the supports parallel to the workpiece at the supports. The vertical-spacing measurement are fed to the computer for use controlling the devices. | 02-19-2009 |
20100000278 | CONTROL METHOD FOR A ROLLING STAND FOR ROLLING A STRIP - A strip has a left and a right side. The strip is rolled in a rolling stand. Stresses occurring in the strip at the feed and exit sides are detected by corresponding measuring sensors positioned on the left and right sides of the strip. The detected stresses are fed to a control unit for the rolling stand. The control unit determines a measurement for the transversal positioning of the strip in relation to the rolling stand using the relationship Z=ZLE*ZLA−ZRE−ZRA, where Z is the measurement. ZLE, ZLA, ZRE and ZRA are the individually detected stresses. The control unit determines a correcting variable for correcting the transversal positioning of the strip using the measurement for the transversal positioning and controls the rolling stand according to the correcting variable. | 01-07-2010 |
20130074557 | REDUCTION OF THE STRIP TENSION OF ROLLING STOCK BETWEEN TWO ROLLING UNITS TO A MINIMUM - A method for reducing the strip tension of a rolling stock, may include: transporting the rolling stock using a roller table between two successive rolling units, wherein a rolling stock loop is formed in a depression in a section of the roller table between the two rolling units, the rolling stock loop being supported by the roller table at least in one off-center portion of the section, wherein the supporting line of the roller table in this portion corresponds to the catenary curve of the free span; measuring a loop depth of the rolling stock loop; calculating a desired value of the loop depth that corresponds substantially to the free span, e.g., depending on the material, thickness and temperature of the rolling stock; controlling the main drives and/or the gap adjustment of the rolling units based on the desired value and the measured loop depth, such that the loop depth substantially corresponds to the desired value. | 03-28-2013 |
20160023257 | ROLLING MILL THIRD OCTAVE CHATTER CONTROL BY PROCESS DAMPING - Control of third octave vibrations in a mill stand can be achieved using a high-speed piezoelectric assist coupled to a hydraulic gap cylinder to increase the damping of the roll stack. Vertical movements of the roll stack (e.g., the top work roll) can be determined through observation (e.g., measurement) of hydraulic fluid pressure of the hydraulic cylinder or entry tension of the metal strip. After determining vertical movements of the roll stack, a desired change in hydraulic pressure can be determined to overcome, reduce, or prevent third octave vibration. This desired change in hydraulic pressure can be effectuated at high speeds (e.g., at or above approximately 90 hertz) using the piezoelectric assist. | 01-28-2016 |
20180021824 | ROLLING EQUIPMENT | 01-25-2018 |
072120500 | Sensing lead end or tail end | 3 |
20100269556 | METHOD OF ROLLING A METAL STRIP WITH ADJUSTMENT OF THE LATERAL POSITION OF A STRIP AND SUITABLE ROLLING MILL - One subject of the invention is a method of rolling a strip (B) in a rolling mill for metal products, which mill has at least two stands in the nips of which the strip (B) is simultaneously gripped, whereby the lateral position of said strip (B) is adjusted, by simultaneously determining downstream of each of the stands of the rolling mill in the nips of which said strip (B) is gripped, a value representative of its lateral position along a line transverse to its run direction, and the algebraic differences (Δxp) between the lateral positions and a reference position ( | 10-28-2010 |
20120151979 | DEVICE FOR ADJUSTING ROLLING POSITIONS OF ROLLING ROLLS CONSTITUTING THREE-ROLL MANDREL MILL AND METHOD FOR MANUFACTURING SEAMLESS PIPES OR TUBES - A device for adjusting the rolling positions of rolling rolls and restraining poor roll-biting of the front edge part of a pipe material rolled by a three-roll mandrel mill includes pressing-down devices | 06-21-2012 |
20130180300 | METHOD FOR ADJUSTING ROLLING POSITIONS OF ROLLING ROLLS CONSTITUTING THREE-ROLL MANDREL MILL AND METHOD FOR MANUFACTURING SEAMLESS PIPES OR TUBES - [Problem to be Solved] | 07-18-2013 |
072120700 | Sensing cross sectional dimension | 19 |
20100192654 | GAUGE CONTROL APPARATUS - A gauge control apparatus reduces deviation of an actual plate thickness from a target plate thickness on the delivery side of a rolling mill, in all speed ranges, and produces good products by controlling plate thickness considering changes in the oil film thickness of oil film bearings of backup rolls and the deformation resistance of a rolled material with respect to rolling speeds. The gauge control apparatus computes an oil film thickness compensation value to compensate for increase and decrease of the gap resulting from a change in thickness of the oil film bearing attributable to rolling speeds, an acceleration compensation value to compensate for increase and decrease of plate thickness on the delivery side of the rolling mill resulting from a change in deformation resistance of the rolled material attributable to rolling speeds, and deviation of the predicted plate thickness from the target plate thickness, in consideration of the computed compensation values. | 08-05-2010 |
20100326155 | OPERATING METHOD FOR A MULTI-STAND ROLLING MILL TRAIN WITH STRIP THICKNESS DETERMINATION ON THE BASIS OF THE CONTINUITY EQUATION - A strip is fed a rolling stand of a multi-stand rolling mill with a known inlet thickness and exits with a strip thickness. Measurement parameters are determined that are characteristic of the inlet-side and outlet-side strip velocities. With the measurement parameters, the inlet-side and outlet-side strip velocities are determined with respect to the rolling stand. With the inlet thickness, the inlet-side and outlet-side strip velocities, the strip thickness is determined with respect to the rolling stand. Taking into account the determined strip thickness, further measures are taken. The measurement parameter for the inlet-side velocity is the roller peripheral velocity directly prior to the rolling stand. Alternatively or in addition, the measurement parameter for the outlet-side velocity is the roller peripheral velocity. The peripheral precession of the strip is modeled. The respective strip velocity is determined using the respective roller peripheral velocity and the peripheral strip precession in the respective rolling stand. | 12-30-2010 |
20110030433 | ROLLING DEVICE AND METHOD FOR THE OPERATION THEREOF - The invention relates to a rolling device ( | 02-10-2011 |
20120240651 | METHOD AND PLANT FOR INTEGRATED MONITORING AND CONTROL OF STRIP FLATNESS AND STRIP PROFILE - Apparatus and method of controlling strip geometry in casting strip having a rolling mill. A target thickness profile is calculated as a function of the measured entry thickness profile of the strip while satisfying profile and flatness parameters. A differential strain feedback from longitudinal strain in the strip is calculated by a control system by comparing the exit thickness profile with the target thickness profile, and a control signal is generated to control a device capable of affecting the geometry of the strip processed by the hot rolling mill. A feed-forward control reference and/or sensitivity vector may also be calculated as a function of the target thickness profile, and used in generating the control signal sent to the control device. The control device may be selected from one or more of the group consisting of a bending controller, gap controller and coolant controller. | 09-27-2012 |
20130160509 | METHOD AND DEVICE TO CONTROL THE SECTION SIZES OF A ROLLED PRODUCT - A method controls the section sizes of a rolled product in a segment of a rolling line between at least two rolling stands, wherein each is provided with its own drive members, in which at least a detector located between the two rolling stands detects a characteristic size of the rolled product. A control unit compares the characteristic size of the rolled product with a reference size and acts on said drive members in order to hold the rolled product in an optimal drawing condition. The method comprises setting a predefined value of an electric quantity of at least one of the drive members, measuring the reference size, and verifying the characteristic size of the rolled product in transit. If a deviation is detected between the characteristic size and the reference size, returning the characteristic size of the rolled product to the reference size. | 06-27-2013 |
20140250963 | FLATNESS OF A ROLLED STRIP - Systems and methods for improving the flatness of a rolled sheet or strip by the application of differential cooling. A cooling agent can be selectively applied along the width of the strip. More cooling can be applied to the edges of the strip, where tension is greatest, to increase tension at the edges. The strip can be allowed to lengthen at these edges, which can improve flatness. In some embodiments, a closed loop flatness control system is used to measure the flatness of a strip and automatically adjust the differential cooling based on the measurement. | 09-11-2014 |
20140260473 | METHODS AND APPARATUS TO MONITOR MATERIAL CONDITIONING MACHINES - Methods and apparatus to monitor conditioning machines are disclosed herein. An example system includes a plurality of work rolls to process a strip material. A first sensor detects a first distance between an upper surface of the strip material and a first reference location and a second sensor detects a second distance between an upper surface of the strip material and a second reference location. A controller determines a difference value between the first distance and the second distance to detect material curvature of the strip material. | 09-18-2014 |
20150027186 | PLANT TO CONTROL THE SECTION AREA OF A ROLLED PRODUCT AND CORRESPONDING METHOD - A plant to control the section of a rolled product passing through a rolling train comprises at least two rolling stands, at least a section area measurer disposed immediately at exit from at least one of the stands located downstream of the first stand, a control unit comprising a database, in which at least the parameters relating to the expected value of the section of the rolled product at exit from each stand are memorized, means to compare the values detected by the section area measurer with the values memorized in the database and means to act on the rolling parameters according to said values detected. | 01-29-2015 |
20160038984 | APPARATUS FOR CONTROLLING CAMBER AND METHOD FOR SAME - Provided is a camber control apparatus and method capable of reducing camber of a slab sizing press (SSP). The camber control apparatus and method may calculates a camber amount through an imaging process and differently set zeroing of anvils at a work side and a drive side, thereby reducing camber. Thus, the camber control apparatus and method can reduce quality defects such as telescope, twist, wave, and roll mark, increase the lifetime of equipment by reducing a variation in load applied to the equipment, and minimize a cost caused by an equipment accident. | 02-11-2016 |
20160052032 | Method And Control System For Tuning Flatness Control In A Mill - A method for tuning flatness control for rolling a strip in a mill including rolls controllable by means of a plurality of actuators, which mill is modeled by means of a mill matrix. The method includes: a) obtaining an equivalent movement range for each actuator, b) determining a scaled mill matrix by scaling the mill matrix based on the equivalent movement ranges, and c) obtaining a singular value decomposition of the scaled mill matrix for providing flatness control of the strip by means of the actuators. A computer program and a control system for carrying out the above method are also presented herein. | 02-25-2016 |
20160082489 | METHOD FOR DETERMINING THE STAMPING QUALITY OF PROFILED BAR MATERIAL - A method for determining the stamping quality of profiled bar material, in particular of steel concrete-reinforcing bars, which is advanced in a rolling train, is provided, with the following steps: a) upstream of the rolling stand ( | 03-24-2016 |
20160107214 | ADJUSTABLE DESCALER - An adjustable descaling device for a rolling mill ( | 04-21-2016 |
072120800 | To control operation of deformer directly by sensor | 7 |
20120204614 | METHOD FOR MEASURING SHEET MATERIAL FLATNESS AND METHOD FOR PRODUCING STEEL SHEET USING SAID MEASURING METHOD - A method for measuring flatness of a sheet material in which a light and dark pattern composed by a light portion and a dark portion is projected onto a surface of the sheet material running in a longitudinal direction, a pattern image is acquired by photographing the light and dark pattern by an image pickup device having an image pickup visual field larger than a width of the sheet material, and the flatness of the sheet material is measured by analyzing the acquired pattern image. A staggered pattern is used for the projecting step and for light to be specularly reflected for receipt by the image pickup device. Calculating the flatness also includes steps of setting a shape measurement line, averaging picture element concentrations, calculating a distribution of the concentrations, and calculating the flatness based on surface shape using the distribution. | 08-16-2012 |
20130042660 | METHOD AND APPARATUS FOR MAKING COLD-PILGER-ROLLED PIPE - An apparatus for making a cold-pilger-rolled tube has two grooved pilger work rolls rotatable in a roll frame about respective axes to compress a tubular workpiece moving in a travel direction around a mandrel extending in the direction between a nip formed between the grooved rolls and anchored upstream of the nip in a thrust block. An outside diameter of the workpiece is measured downstream in the direction from the rolls as the workpiece passes through the nip, and an actuator engaging one of the rolls relative the other of the rolls shifts it transversely to the travel direction as the workpiece passes through the nip in accordance with the measured outside diameter for maintaining a uniform outside diameter of the workpiece. | 02-21-2013 |
20130205851 | METHOD AND APPARATUS FOR MAKING COLD-PILGER-ROLLED TUBES - An apparatus for making a cold-pilger-rolled tube has two grooved pilger rolls rotatable about respective axes to compress a workpiece moving in a travel direction against a mandrel extending in the direction between a nip formed between the rolls and anchored upstream of the nip in a thrust block. Workpiece thickness is adjusted on the fly by measuring a wall thickness of the workpiece downstream in the direction from the roll as the workpiece passes through the nip and for displacing the thrust block and mandrel in to the travel direction as the workpiece passes through the nip in accordance with the measured wall thickness. | 08-15-2013 |
20130276497 | Roll Forming Machine and Method of Roll Forming - When roll-forming a blank into a profile having varying width and upright sides, the vertical position of at least any one of the forming roll pairs ( | 10-24-2013 |
20140007634 | METHOD FOR MEASURING SHEET MATERIAL FLATNESS AND METHOD FOR PRODUCING STEEL SHEET USING SAID MEASURING METHOD - A method for measuring flatness of a sheet material in which a light and dark pattern composed by a light portion and a dark portion is projected onto a surface of the sheet material running in a longitudinal direction, a pattern image is acquired by photographing the light and dark pattern by an image pickup device having an image pickup visual field larger than a width of the sheet material, and the flatness of the sheet material is measured by analyzing the acquired pattern image. A staggered pattern is used for the projecting step and for light to be specularly reflected for receipt by the image pickup device. Calculating the flatness also includes steps of setting a shape measurement line, averaging picture element concentrations, calculating a distribution of the concentrations, and calculating the flatness based on surface shape using the distribution. | 01-09-2014 |
20150290700 | FORMING MACHINE AND METHOD FOR CONTROL OF A FORMING MACHINE - A forming machine, particularly a ring-rolling machine, which includes a light section sensor, which is directed at a workpiece disposed in a work region of the forming machine, can work precisely while having a simple mechanical-engineering structure. The light section sensor may be directed at a forming region in which the working tool acts in forming manner. | 10-15-2015 |
20150328669 | DEVICE AND METHOD FOR LATERALLY GUIDING A ROLLED OR CAST PRODUCT ON A TRANSPORT TRACK - The invention relates to a device ( | 11-19-2015 |