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Class 72/252.5 - Roller or roller-like tool-element of particular configuration


Subclass of Class 72 - Metal deforming
Definition: Subject matter wherein the tool-element is of a specified
No. of patents: 108
Last issue date: 08/09/2011


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NumberTitleIssue Date
7992418Sheet material
A sheet of cold rolled material having on both of its surfaces rows of projections and rows of depressions, the projections on one surface corresponding with the depressions on the other surface, the relative positions of the projections and depressions being such t...
08/09/2011
7913531Roll profile for both shape control and free ruled rolling
The invention provides a roll profile for work rolls for both shape control and free ruled rolling. Each of the work rolls has a tapered end. The curve of respective tapered end is a quartic curve represented by a formula y(x)=a0+a1x+a2
03/29/2011
7757531Convex roll used for influencing the profile and flatness of a milled strip
Rolling stand for producing rolled strip, which includes work rolls, which are supported on backup rolls or intermediate rolls and backup rolls. The work rolls and/or the backup rolls and/or the intermediate rolls can be axially shifted relative to one another. The ...
07/20/2010
7726164Arrangement in a press roll and a press roll
An arrangement in connection with supporting a press roll which press roll includes a support shaft extending through a rotating roll shell in the axial direction and being supported using at least one bearing element in at least one bearing point to a support frame...
06/01/2010
7434435Method and device for applying an adjustable tensile-stress distribution, in particular in the edge regions of cold-rolled metal strips
The invention relates to a method and a device for applying an adjustable tensile-stress distribution, in particular in the edge regions during the cold-rolling of metal strips (16), in particular metal foil, in order to reduce the risk of an excessive build-...
10/14/2008
7430887Roller for determining variations in flatness
In the case of a measuring roller for determining flatness deviations when handling material in strip form, for example when rolling metal strip, the stress distribution is measured over the width of the strip with the aid of piezoelectric sensors, which are arrange...
10/07/2008
7421873Rolling apparatus and method of making product of miscellaneous cross section with use of same
A rolling apparatus including a first work roll and a second work roll cooperative with the first work roll for rolling a metal blank plate to manufacture a metal product of miscellaneous cross section including a plate portion having one side in the form of a flat ...
09/09/2008
7367209Optimised shift strategy as a function of strip width
The invention relates to a method for the optimization of shift strategies, as a function of the strip width, for best possible usage of the advantages of CVC/CVCPlus technology in operation of strip-edge oriented shifts in 4-/6-roller stands, comprising ...
05/06/2008
7353681Roll embossing of discrete features
A cold rolling process for impressing a pattern on a surface of a sheet metal article involves passing the sheet article through a pair of rolls and engaging a patterning feature with isolated areas of a surface of the sheet article, at a localized pressure to plast...
04/08/2008
7350388Method for determining shape of shift roll for rolling mill
A method for determining a shape of a shift roll for a rolling mill, includes the steps of determining a necessary control amount distribution αi for a plate crown with respect to plate widths, based on a distribution of the number of plates rolled by a ...
04/01/2008
7343767Roller tool for the linear deformation of sheet metal and sheet deformation facility having such a roller tool
A roller tool is used within a sheet deformation facility for the linear deformation of sheet metal. The roller tool comprises a press roller having a shaft and a roller body rolling around the same as well as a counterbody. The press roller and the counterbody can ...
03/18/2008
7334446Method for producing a striplike pre-material made of metal, especially a pre-material which has been profiled into regularly reoccurring sections, and device therefor
This invention describes both a method and apparatus to practice a method which produces a strip-like pre-material from metal using rollers which have a roll gap in which the metal strip is discontinuously rolled in successively steps between the same two rollers wi...
02/26/2008
7316146Rolling stand for producing rolled strip
In the case of a rolling stand for producing rolled strip, which is provided with rolls which are axially displaceable with respect to one another, have a curved contour running over the entire effective barrel length and complement one another exclusively in a spec...
01/08/2008
7296517Roll for metal rolling, and support for lithographic printing plate
A roll for metal rolling has a roughened surface formed by an electrolytic treatment in an electrolytic solution while using the roll as an anode. When the roll is used to emboss an aluminum plate, it is possible to obtain an aluminum plate with an uneven structure ...
11/20/2007
7296451Roller tool for forming grooves in pipes
A roller tool for forming circumferential grooves around a pipe is disclosed. The tool is rotatable about an axis of rotation and has a circumferential surface engageable with a pipe. The tool surface includes first and second surface portions positioned in spaced r...
11/20/2007
7257978Compact cantilever rolling mill and a method of producing a metallic product
The invention relates to an apparatus for rolling a metallic product comprising a mill frame (18), a first cantilever roll shaft (19), a second cantilever roll shaft (20), both said roll shafts (19, 20) being mounted on the mill frame (
08/21/2007
7251978Roll stand for producing plane roll strips having a desired strip profile superelevation
The aim of the invention is to improve known roll stands (10) which are characterized by working rolls (1,2) of various diameters, in such a way that a strip is obtained which is largely free of tensions and undulations, has a desired strip profile sup...
08/07/2007
7241126Apparatus for imparting protusions and recesses and product
An apparatus imparts concaves/convexes to a sheet-like object by passing the sheet-like object between a pair of rollers facing each other. At least one of the rollers is a roller a surface of which is formed by laminating a single or a plurality of circular plates ...
07/10/2007
7200935Work roll
Improved work roll, particularly for use in closed gap rolling, has a composite structure comprising a cylindrical outer layer (14) made of steel, and providing the work surface of the roll, separated from a steel core (12) by an intermediate layer (
04/10/2007
7197808Process for forming a groove in a friction layer
Device for forming of at least one groove (92, 93, 94, 95, 96, 97, 98) in a friction layer (91) of a covered disk (90) for a force transmission aggregate, in particular for a disk clutch, with a rolling device (1, 11, 21, 31) with at leas...
04/03/2007
7168279Method of manufacturing metal ring for endless metal belt
A metal ring with smaller stress concentration is manufactured, and the manufacture and maintenance of a rolling roller for transferring a mesh-shaped unevenness to the metal ring is facilitated. A mesh-like unevenness 8 is formed to the surface of an inner c...
01/30/2007
7131307Compact rolling mill and a method of producing a thin strip
The invention relates to an apparatus for rolling a strip (21) comprising a first work roll (24), which is mounted from both ends with bearings (35) to the mill frame, a second work roll (25), which work rolls (24, 25) are forming ...
11/07/2006
7059163Roll stand comprising a crown-variable-control (CVC) roll pair
The invention relates to a roll stand comprising a crown-variable-control (CVC) roll pair, preferably a CVC working roll pair and a back-up roll pair, which comprise a contact area (B cont) in which a horizontally active torque (M) acts that leads to a twisting of t...
06/13/2006
7047621Method for casting and immediate rolling, and device for the support, guidance and deformation of a metal strand, especially in steel strand
A method for casting and rolling preliminary sections, especially H-sections, and a device for the support, guidance and deformation of a metal strand, especially a steel cast strand (1), in a continuous casting installation for preliminary sections with soft...
05/23/2006
7024899Roll assembly for a rolling mill
A roll shaft assembly especially for a planetary cross roll rolling mill for tubing and the like has the roll shaft and mill roll connected by a conical centering arrangement and a screw, preferably coaxial therewith with the torque transfer being effected by tooth ...
04/11/2006
7010952Device for holding at least one roller of a rolling machine
A device for holding at least one roller of a rolling machine that can rotate about a rotational axis includes two holding arrangements that can be arranged on opposite faces of the roller viewed in the direction of the rotational axis. The device further includes a...
03/14/2006
6964185Apparatus for bending and transporting an aluminum sheet
A bending apparatus for bending and transporting an aluminum metal sheet. The bending apparatus includes a central retaining portion that has gripping elements mounted on the central retaining portion for retaining an aluminum metal sheet. There is also included a b...
11/15/2005
6959575Kurling tool
A method and apparatus for knurling a workpiece in which the knurl pattern includes grooves of at least two different configurations. The apparatus includes a knurl wheel holder that allows angular rotation of the knurl wheel about the holder longitudinal axis while...
11/01/2005
6923033Roller system for flattening irregularly shaped, bent pieces of scrap sheet metal
A roller system for flattening irregularly shaped pieces of scrap sheet metal comprises a pair of parallel, horizontally arranged large rollers forming a downwardly converging nip between them. Each roller is formed of curved steel sheets bent to form a cylindrical ...
08/02/2005
6877206Method for producing a metal strip
The invention relates to a method for producing a metal strip from a cast by rolling in which method the technique of a profiled rolling in combination with a strip rolling is used. The material for the metal strip is first cast by using a casting technique to produ...
04/12/2005
6826941Roller apparatus with improved height adjustability
A roller assembly for use as a back-up roller for work rolls. The roller assembly comprises an axle, a roller rotatably mounted on the axle, a plurality of bearing elements rotatably positioned between the axle and roller, at least one bushing which is eccentric rel...
12/07/2004
6739167Work roll for use in rolling apparatus
A work roll for use in rolling apparatus for producing from a metal blank sheet articles having a deformed cross section and comprising, for example, a plate portion, and a plurality of upright walls formed on one surface of the plate portion integrally therewith an...
05/25/2004
6539628Formed strip and roll forming
A V-shaped metal strip has a U-shaped bottom having U-shaped inside and outside surfaces. Only the U-shaped inside surface is formed with a plurality of fold lines extending in a longitudinal direction of the strip and reducing the influence of springback...
04/01/2003
6532788Roller apparatus
A roller assembly for use as a back-up roller for work rolls. The roller assembly comprises an axle, a roller rotatably mounted on the axle, a plurality of bearing elements rotatably positioned between the axle and roller, and at least one bushing which i...
03/18/2003
6497130Method for corrugating a metal foil and packages of such foil
A method for corrugating a metal foil (11), which together with a longitudinally flat foil (12) is intended to form a foil package pervious to liquid or gas, where the folds are made with a very small fold radius by rolling in at least two steps between r...
12/24/2002
6360575Calibration of an instrument for the cold-rolling of tubes
This invention relates to the plastic metal working, particularly to tube rolling production and can be applied for tube cold pilgering on rolling machines. Tool design for tube cold pilgering, in which, in order to increase accuracy, surface quality, mec...
03/26/2002
6324881Method to control the profile of strip in a rolling stand for strip and/or sheet
Method to control the profile of a strip (13) in a rolling stand for strip and/or sheet comprising at least two working rolls, respectively upper (11a) and lower (11b) and defining a reference pass-line (15) substantially coinciding with the center line o...
12/04/2001
6301943Method for finishing cold-rolled stainless steel
A method for finishing cold-rolled stainless steel is disclosed, wherein the stainless steel is annealed and descaled. After descaling, the cold-rolled stainless steel is temper rolled, buffed and embossed. Line speed as fast as 75 fpm is used to produce ...
10/16/2001
6286355Rolling mill with working rollers and multipart support rollers
A rolling mill with working rolls and with multipart support rolls. The rolling mill includes of a basic body with a plurality of rolling bearings which are arranged next to one another on the basic body in its longitudinal direction. The outer rings of t...
09/11/2001
6250125Method for producing iron-base dispersion-strengthened alloy tube
A method of producing an iron-based dispersion-strengthened alloy tube (2-1) by utilizing a rolling machine having grooved rolls (5, 5-1) and a mandrel (9)for forming the tube (2-1) from a raw rolling tube (2). In the method, a length of contact between a...
06/26/2001
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