US3839888A - Tension levelling of strip - Google Patents

Tension levelling of strip Download PDF

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Publication number
US3839888A
US3839888A US00304182A US30418272A US3839888A US 3839888 A US3839888 A US 3839888A US 00304182 A US00304182 A US 00304182A US 30418272 A US30418272 A US 30418272A US 3839888 A US3839888 A US 3839888A
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United States
Prior art keywords
strip
flexing
tension
roll
rolls
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Expired - Lifetime
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US00304182A
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English (en)
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J Greenberger
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Wean United Inc
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Wean United Inc
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Priority to US00304182A priority Critical patent/US3839888A/en
Priority to CA175,543A priority patent/CA974868A/en
Priority to GB4712773A priority patent/GB1447781A/en
Priority to FR7338363A priority patent/FR2205379B3/fr
Application granted granted Critical
Publication of US3839888A publication Critical patent/US3839888A/en
Assigned to PITTSBURGH NATIONAL BANK reassignment PITTSBURGH NATIONAL BANK SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: WEAN UNITED, INC., A CORP.OF OH
Assigned to PITTSBURGH NATIONAL BANK reassignment PITTSBURGH NATIONAL BANK SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: WEAN UNITED, INC., A CORP. OH.
Assigned to PITTSBURGH NATIONAL BANK reassignment PITTSBURGH NATIONAL BANK RELEASED BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). RECORDED ON REEL 4792 Assignors: WEAN UNITED INC./NOW WEAN INCORPORATED PA CORP.
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Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D1/00—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling
    • B21D1/05—Stretching combined with rolling

Definitions

  • Strip Shape detecting 10115 which are 3,324,695 6/1967 Sirilotti 72/ 15 associated with a computer control unit that produces 3,326.026 6/1967 Guillot i v.
  • the present invention provides a method and apparatus for producing flat metallic strip at an efficient and high production rate including the steps and apparatus of subjecting the strip to a substantial total tension but below its yield point, causing the strip while under said tension condition to pass between a series of strip flexing rolls where the strip is additionally subjected to reverse flexing sufficient to impart a relatively small amount of permanent elongation to the strip, varying the unit tension transversely of the strip in a manner to vary the transverse unit tension of the portion of the strip being subject to the flexing operation, determining the transverse flatness profile of the strip and changing at least one of said total tension, flexing or unit tension operations to reduce nonflatness in the strip.
  • FIG. I is an elevational view, partly in section, of an arrangement of equipment for practicing the present invention.
  • FIG. 2 is a plan view of FIG. I
  • FIG. 3 is a schematic enlarged elevational view, partly in section, of some of the equipment illustrated in FIG. 1 and wherein the strip flexing units are shown in their rolling and flexing positions and
  • FIG. 4 is a partial view of one of the strip flexing units illustrated in FIG. 3 shown in a strip flexing position.
  • FIGS. I and 2 a rolled carbon steel strip is shown, the two arrows indicating the entrance and delivery of the strip to a tension levelling zone of a strip processing line.
  • strip tension bridle units 12 and I4 each having a entry set of horizontally spaced-apart driven rolls l6 and 18 from where the strip 10 passes to a delivery set of similar driven rolls 20 and 22.
  • the rolls 18 and 20 cooperate with pinch rolls 24 which are vertically adjusted by piston cylinder assemblies 26.
  • Bridle units of the type illustrated are well known in the steel strip producing industry so that the details of their functions and operations are not deemed necessary.
  • the entry roll set 20 and 22 and the delivery roll set 16%8 two sets of flexing or flexing and rolling rolls are provided, the entry set being identified at 28 and the delivery set at 30, both of which are rotatably supported in a common housing 32.
  • Roll set 28 comprises an upper quickly adjustable backup roll 34 which engages a smaller diameter nested roll 36, the lower surface of which engages one surface of the strip while the opposite surface of the strip is engaged by two larger diameter rolls 38 and 40.
  • the backup roll 34 which is carried at each of its opposite ends by a bearing chock assembly 42 is vertically positioned against motor operated screw stops 44 associated with each chock assembly, by virtue of piston cylinder assembly one being shown at 46, which is shown only in FIGS. I and 2.
  • the screw stops 44 and piston cylinder assemblies 46 permit the nested smaller roll 36 to vary its penetration into the space between the rolls 38 and 40 from a rolling condition where the strip is both flexed and compressed by rolling between the rolls 36 and 38 and 40 to only a pure flexing action where the roll 36 is spaced from and out of direct contact with the rolls 38 and 40.
  • FIG. 3 is meant to portray the flexing and rolling condition where the total permanent elongation imparted by these forces will not exceed 2 to 4 percent while FIG. 4 portrays the pure flexing condition where the total .permanent elongation will be less than 2 percent.
  • a desirable roll size range for various carbon steels will find the large rolls 34., 38 and 40 being of a diameter between 12 to 14 inches and the small nested roll 36 having a diameter of between 3 to 6 inches.
  • the rolls of the flexing or flexing and rolling set 30 are identical but inverted with respect to the roll set 28, in which as shown in FIG. 3 the upper larger rolls 4% and 50 are vertically positioned by piston cylinder assemblies 52 against motor operated screw stops 54 for the purpose already explained with respect to the roll set 23.
  • the rolls 56 and 58 On the entry and delivery sides of the roll set 28 and 30 there are arranged transversely of the path of the strip strip engaging rolls 56 and 58 rotatably sup,- ported in the housing 32.
  • the roll 56 is arranged to engage the upper surface of the strip while the roll 53 en gages the lower surface.
  • the rolls 56 and 58 are vertically tiltable and which is indicated in legend in FIG. 3 as ROLL TILTING.
  • the rolls are also mechanically shaped to change the crown which is legend ME- CHANICAL ROLL SHAPING and/or to have their ends moved in a horizontal plane whis is legend SKEW- ING in FIG. 3.
  • the result of tilting, mechanical shaping and skewing is to vary the unit tension of the strip in the roll bite of the roll units 28 and 30.
  • a greater or less unit tension can be brought into play transversely of the strip as it is being worked in the roll set units 28 and 30, by virtue of varying the lengths of the paths of travel of different portions of the strip width. Since the use of strip deflecting rolls in which the crown of the rolls may be varied by outboard bending forces or skewing or tilting end to end by power means are well known details of construction need not be given.
  • rolls 60 and 62 which are identified by the leg ends SHAPE DETECTING appearing in FIG. 3 and which are provided to detect the transverse flatness profile of the strip passing to and from the roll flexing units 28 and 30.
  • rolls 60 and 62 There are several well known types of such measuring devices in the industry such as that illustrated and described in US. Pat. Nos. 3,481,194 dated Dec. 2, 1969 and 3,499,306 dated Mar. 10, 1970, among others not as well publicized.
  • the basic purpose of these units is to determine the transverse strip profile, i.e., both the magnitude and location of the hills and valleys of non-flatness.
  • strip deflecting rolls 63 Arranged between the rolls 5660 and 58-62 are strip deflecting rolls 63 provided to assure proper contact between the rolls 56-60 and 5862.
  • an important aspect of the invention is to provide a method and means that will enable the best possible individual or collective usage of the several corrective forces developed by the units 12, 14,, 28, 30, 56, and 58 in removing or reducing the non-flatness from the strip as determined by either or both of the shape detectors 60 and 62.
  • these corrective forces are correlated and varied with reference to a given condition of the strip by a master control computer 64.
  • the control receives signals from the detector rolls 60 and 62 of the non-flatness of the strip and issues command signals to one or more of the units 12, 14, 28, 3t), 56 and 58 as is determined to be neces- 'sary to correct totally or in part for the particular nonflat condition of the strip.
  • the computer control 64 will follow the typecustomarily provided in the steel industry for strip processing equipment, in which as shown in FIG. 2 the control receives signals from the shape detector rolls 60 and 62 from signal generating units 66 and 68 respectively, along with signals of tension values from the tension bridles l2 and 14 by signal units 70 and 72 and pressure signals from the piston cylinder assemblies 46 and 52. It then employs this data to obtain the best coordinated use of the equipment in removing totally or in part the non-flatness from the strip.
  • FIG. 1 In briefly describing the operation of the above explained equipment and control let it be assumed as suggested by FIG. 1 that a strip is being fed through the bridleunits 12 and 14 as it is being processed. While the equipment can be operated in a number of different ways, such as by a feed forward and/or a feed backward control system, semi-automatic or fully automatic, a fully automatic feed forward and feed backward system will be described.
  • the signal generator 66 will issue a feed forward signal to the control unit 64 and cause the effective working forces produced by entry units i.e., the bridle 12, deflector roll 56 and the flexing and rolling unit 28 to vary if necessary to give the ideal combination of total tension, roll crowning and/or skewing or tilting and mechanical shaping and flex-ing and/or rolling required.
  • entry units i.e., the bridle 12, deflector roll 56 and the flexing and rolling unit 28
  • the control then will initiate a trim control signal to one or more of the delivery units 30, 58 or E4 to still further reduce or eliminate any non-flatness in the strip.
  • the control unit will enable the entry and delivery units to be always operated in a correlated manner and maintained within a desirable operating range to thus cover a very wide range of entry strip conditions.
  • a method of producing flat metallic strip comprising the steps of:
  • strip flexing step includes subjecting the strip to a simultaneous rolling and flexing operation
  • said flexing operation includes the step of passing the strip between a set of three rolls, one of which is arranged in a nested relationship with the others and being of a much smaller diameter than the others.
  • a method of producing flat metallic strip according to claim 1, wherein said flexing operating includes the step of passing the strip through two succeeding and separate flexing operations wherein theopposite surfaces of the strip are subjected to an equal number of tension-compression steps caused by flexing.
  • a method of producing flat metallic strip according to claim 1 wherein said step of varying the unit tension of the strip is accomplished by varying the length of the path of travel of different portions of the strip width by manipulation of a deflecting roll arranged to engage one of the surfaces of the strip when subject to said total tension condition.
  • a method of producing flat metallic strip according to claim ll, wherein said step of subjecting the strip to a substantial total tension includes with respect to said flexing step causing the strip to pass between entry and delivery tension bridle units.
  • a method of producing flat metallic strip according to claim 1, wherein said step of subjecting the strip to a substantial total tension includes with respect to said flexing step, causing the strip to pass between entry and delivery tension bridle units,
  • step of varying the unit tension of the strip is accomplished by variation of length of path of travel by manipulation of a strip deflecting roll arranged to engage one of the surfaces of the strip when subject to said total tension condition,
  • said flexing operation includes the steps of passing the strip through two succeeding and separate flexing operations wherein the opposite surfaces of the strip are subjected to an equal number of tension-compression steps caused by flexing.
  • said zone also including a series of strip flexing roll means constructed and arranged to subject the tensioned strip to reverse flexing whereby the tension and flexing imparts a controllable amount of permanent elongation to the strip,
  • a deflector roll arranged to be engaged by said tensioned strip
  • Apparatus and control according to claim 113 wherein said flexing roll means includes a set of three rolls one of which is arranged in a nested relationship with the others and being of a much smaller diameter than the others.
  • said means for determining the flatness profile of the strip includes a shape detecting roll arranged on either side of said strip flexing roll means.
  • control unit for receiving said signal from said detecting roll and producing a command signal to selectively and simultaneously vary one or more of the operations of said tot-a1 tension, flexing and unit

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
  • Control Of Metal Rolling (AREA)
  • Straightening Metal Sheet-Like Bodies (AREA)
  • Metal Rolling (AREA)
US00304182A 1972-11-06 1972-11-06 Tension levelling of strip Expired - Lifetime US3839888A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US00304182A US3839888A (en) 1972-11-06 1972-11-06 Tension levelling of strip
CA175,543A CA974868A (en) 1972-11-06 1973-07-03 Tension levelling
GB4712773A GB1447781A (en) 1972-11-06 1973-10-09 Tension levelling of strip
FR7338363A FR2205379B3 (enrdf_load_stackoverflow) 1972-11-06 1973-10-26

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00304182A US3839888A (en) 1972-11-06 1972-11-06 Tension levelling of strip

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US3839888A true US3839888A (en) 1974-10-08

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US00304182A Expired - Lifetime US3839888A (en) 1972-11-06 1972-11-06 Tension levelling of strip

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US (1) US3839888A (enrdf_load_stackoverflow)
CA (1) CA974868A (enrdf_load_stackoverflow)
FR (1) FR2205379B3 (enrdf_load_stackoverflow)
GB (1) GB1447781A (enrdf_load_stackoverflow)

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4196023A (en) * 1974-03-25 1980-04-01 Carrier Drysys Limited Treating automobile bodies
EP0012738A1 (de) * 1978-12-12 1980-06-25 VOEST-ALPINE Aktiengesellschaft Anordnung zum Steuern einer Streckbiegerichtanlage
US4316376A (en) * 1980-05-15 1982-02-23 Sumitomo Metal Industries, Ltd. Method for preventing wandering of strip under roller leveling in hot rolling line
US4353237A (en) * 1979-04-17 1982-10-12 Mitsubishi Jukogyo Kabushiki Kaisha Method of rolling strip
DE3241995A1 (de) * 1981-11-13 1983-05-26 Sumitomo Metal Industries, Ltd., Osaka Verfahren zum korrigieren von gewalztem material
US4457149A (en) * 1981-03-26 1984-07-03 Veest-Alpine Aktiengesellschaft Apparatus for producing coils of metal strip
US4567630A (en) * 1981-03-10 1986-02-04 Babcock-Hitachi Kabushiki Kaisha Process of continuously producing plate-shaped catalyst and system therefor
US4680952A (en) * 1984-02-17 1987-07-21 Max Kammerer Gmbh Process and apparatus for the production of strands for Bowden cables
US4711109A (en) * 1983-03-14 1987-12-08 Sms Schloemann-Siemag, A.G. Controlling thickness and planarity of hot rolled strips
US4782683A (en) * 1986-03-03 1988-11-08 Tippins Incorporated Hot strip mill shape processor and method
US4809528A (en) * 1986-09-01 1989-03-07 Davy Mckee (Sheffield) Limited Hot strip mill
US4819470A (en) * 1985-04-20 1989-04-11 Bwg Bergwerk-Und Walzwerk-Maschinenbau Gmbh Method for continuously straightening thin metal strips
US5535610A (en) * 1993-07-13 1996-07-16 Bwg Bergwerk-Und Walzwerk-Maschinenbau Gmbh Method and apparatus for eliminating crossbow in metal strip
DE19520541A1 (de) * 1995-06-03 1996-12-05 Bwg Bergwerk Walzwerk Verfahren und Vorrichtung zum Korrigieren von gewalzten, in der Bandebene horizontal gebogenen Metallbändern, insbesondere von Metallbändern mit einer Banddicke von 0,5 mm bis 2,0 mm
US5724845A (en) * 1996-08-12 1998-03-10 Kawasaki Steel Corporation Bowing correction apparatus for temper rolling mill
US5829286A (en) * 1995-03-14 1998-11-03 Bwg Bergwerk- Und Walzwerk Maschinenbau Gmbh Method for continuously leveling strip by measuring nonplanarity of the strip
US5953946A (en) * 1997-03-03 1999-09-21 Betriebsforschungsinstitut Vdeh-Institut Fur Angewandte Forschung Gmbh Apparatus for bend-straightening metal strip
US5992201A (en) * 1998-12-07 1999-11-30 Danieli United Rolling and shearing process and apparatus background
EP1230993A3 (de) * 2001-02-07 2005-01-26 SMS Demag AG Vorrichtung zur Verbesserung der Planheit von gewalztem Band, insbesondere von Stahlband
US20070044531A1 (en) * 2005-08-31 2007-03-01 Red Bud Industries, Inc. Method and apparatus for conditioning sheet metal
US20090056402A1 (en) * 2007-08-30 2009-03-05 Boesch Travis J Apparatus and methods for shaping metal sheets
US20100146757A1 (en) * 2008-12-11 2010-06-17 The Material Works, Ltd. Method and Apparatus for Breaking Scale from Sheet Metal with Recoiler Tension and Rollers Adapted to Generate Scale Breaking Wrap Angles
CN102971096A (zh) * 2010-06-23 2013-03-13 矿山机械和轧钢机械制造有限公司 拉伸弯曲矫直设备
US10010918B2 (en) 2016-10-05 2018-07-03 Allor Manufacturing Inc. Device and method for leveling a metal plate
CN109299541A (zh) * 2018-09-25 2019-02-01 首钢集团有限公司 一种带钢的拉矫处理方法及装置
RU2808318C1 (ru) * 2022-09-21 2023-11-28 ВИСДРИ ИНЖИНИРИНГ энд РИСЕРЧ ИНКОРПОРЕЙШН ЛИМИТЕД Правильно-растяжная машина для правки полос из листового металла

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU687668A1 (ru) * 1976-11-17 1981-06-30 Челябинский Политехнический Институтим.Ленинского Комсомола Способ неприрывной прокатки и стандл ЕгО ОСущЕСТВлЕНи
DE2911983C2 (de) * 1979-03-27 1986-03-20 Mannesmann AG, 4000 Düsseldorf Vorrichtung zum Regeln von Anlagen zum Streckbiegerichten kontinuierlich durchlaufender Bänder

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3006225A (en) * 1957-07-08 1961-10-31 Industrial Nucleonics Corp Special mill controls
US3081651A (en) * 1960-04-28 1963-03-19 United States Steel Corp Method and apparatus for correcting gage of strip during rolling
US3253445A (en) * 1962-07-09 1966-05-31 Metal Box Co Ltd Apparatus for rolling strip metal
US3324695A (en) * 1964-02-13 1967-06-13 Asea Ab Device at strip mill for deciding strip tension distribution across the strip
US3326026A (en) * 1963-08-01 1967-06-20 Loire Atel Forges Metal sheet and strip flattening apparatus
US3328992A (en) * 1963-06-04 1967-07-04 United Eng Foundry Co Method of and apparatus for obtaining flat metallic strip
US3427848A (en) * 1965-08-23 1969-02-18 Forges De La Loire Cie Des Ate Devices for cold-rolling and planishing metal sheet
US3459019A (en) * 1965-09-13 1969-08-05 United Eng Foundry Co Method of and apparatus for rolling flat strip
US3499306A (en) * 1965-07-09 1970-03-10 British Aluminium Co Ltd Measurement of the shape and flatness of sheet or strip material
US3527078A (en) * 1968-08-12 1970-09-08 Head Wrightson & Co Ltd Strip flattening
US3605470A (en) * 1969-01-27 1971-09-20 Natalis H Polakowski Pressure assisted tension roller leveler

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3006225A (en) * 1957-07-08 1961-10-31 Industrial Nucleonics Corp Special mill controls
US3081651A (en) * 1960-04-28 1963-03-19 United States Steel Corp Method and apparatus for correcting gage of strip during rolling
US3253445A (en) * 1962-07-09 1966-05-31 Metal Box Co Ltd Apparatus for rolling strip metal
US3328992A (en) * 1963-06-04 1967-07-04 United Eng Foundry Co Method of and apparatus for obtaining flat metallic strip
US3326026A (en) * 1963-08-01 1967-06-20 Loire Atel Forges Metal sheet and strip flattening apparatus
US3324695A (en) * 1964-02-13 1967-06-13 Asea Ab Device at strip mill for deciding strip tension distribution across the strip
US3499306A (en) * 1965-07-09 1970-03-10 British Aluminium Co Ltd Measurement of the shape and flatness of sheet or strip material
US3427848A (en) * 1965-08-23 1969-02-18 Forges De La Loire Cie Des Ate Devices for cold-rolling and planishing metal sheet
US3459019A (en) * 1965-09-13 1969-08-05 United Eng Foundry Co Method of and apparatus for rolling flat strip
US3527078A (en) * 1968-08-12 1970-09-08 Head Wrightson & Co Ltd Strip flattening
US3605470A (en) * 1969-01-27 1971-09-20 Natalis H Polakowski Pressure assisted tension roller leveler

Cited By (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4196023A (en) * 1974-03-25 1980-04-01 Carrier Drysys Limited Treating automobile bodies
EP0012738A1 (de) * 1978-12-12 1980-06-25 VOEST-ALPINE Aktiengesellschaft Anordnung zum Steuern einer Streckbiegerichtanlage
US4353237A (en) * 1979-04-17 1982-10-12 Mitsubishi Jukogyo Kabushiki Kaisha Method of rolling strip
US4316376A (en) * 1980-05-15 1982-02-23 Sumitomo Metal Industries, Ltd. Method for preventing wandering of strip under roller leveling in hot rolling line
US4567630A (en) * 1981-03-10 1986-02-04 Babcock-Hitachi Kabushiki Kaisha Process of continuously producing plate-shaped catalyst and system therefor
US4457149A (en) * 1981-03-26 1984-07-03 Veest-Alpine Aktiengesellschaft Apparatus for producing coils of metal strip
DE3241995A1 (de) * 1981-11-13 1983-05-26 Sumitomo Metal Industries, Ltd., Osaka Verfahren zum korrigieren von gewalztem material
US4651549A (en) * 1981-11-13 1987-03-24 Sumitomo Metal Industries, Ltd. Method for correcting rolled material
US4711109A (en) * 1983-03-14 1987-12-08 Sms Schloemann-Siemag, A.G. Controlling thickness and planarity of hot rolled strips
US4680952A (en) * 1984-02-17 1987-07-21 Max Kammerer Gmbh Process and apparatus for the production of strands for Bowden cables
US4819470A (en) * 1985-04-20 1989-04-11 Bwg Bergwerk-Und Walzwerk-Maschinenbau Gmbh Method for continuously straightening thin metal strips
US4782683A (en) * 1986-03-03 1988-11-08 Tippins Incorporated Hot strip mill shape processor and method
US4809528A (en) * 1986-09-01 1989-03-07 Davy Mckee (Sheffield) Limited Hot strip mill
US5535610A (en) * 1993-07-13 1996-07-16 Bwg Bergwerk-Und Walzwerk-Maschinenbau Gmbh Method and apparatus for eliminating crossbow in metal strip
US5829286A (en) * 1995-03-14 1998-11-03 Bwg Bergwerk- Und Walzwerk Maschinenbau Gmbh Method for continuously leveling strip by measuring nonplanarity of the strip
DE19520541A1 (de) * 1995-06-03 1996-12-05 Bwg Bergwerk Walzwerk Verfahren und Vorrichtung zum Korrigieren von gewalzten, in der Bandebene horizontal gebogenen Metallbändern, insbesondere von Metallbändern mit einer Banddicke von 0,5 mm bis 2,0 mm
US5687595A (en) * 1995-06-03 1997-11-18 Bwg Bergwerk- Und Walzwerk-Maschinenbau Gmbh Method of and apparatus for correcting curvature of rolled metal strip
DE19520541C2 (de) * 1995-06-03 1999-01-14 Bwg Bergwerk Walzwerk Verfahren und Vorrichtung zum Korrigieren eines gewalzten, in der Bandebene horizontal gebogenen Metallbandes, insbesondere eines Metallbandes mit einer Banddicke von 0,5 mm bis 2,0 mm
US5724845A (en) * 1996-08-12 1998-03-10 Kawasaki Steel Corporation Bowing correction apparatus for temper rolling mill
US5953946A (en) * 1997-03-03 1999-09-21 Betriebsforschungsinstitut Vdeh-Institut Fur Angewandte Forschung Gmbh Apparatus for bend-straightening metal strip
EP0865839A3 (de) * 1997-03-03 2002-01-16 BETRIEBSFORSCHUNGSINSTITUT VDEh, INSTITUT FÜR ANGEWANDTE FORSCHUNG GmbH Vorrichtung zum Biegerichten von Metallband
US5992201A (en) * 1998-12-07 1999-11-30 Danieli United Rolling and shearing process and apparatus background
EP1230993A3 (de) * 2001-02-07 2005-01-26 SMS Demag AG Vorrichtung zur Verbesserung der Planheit von gewalztem Band, insbesondere von Stahlband
US20070044531A1 (en) * 2005-08-31 2007-03-01 Red Bud Industries, Inc. Method and apparatus for conditioning sheet metal
US20090056402A1 (en) * 2007-08-30 2009-03-05 Boesch Travis J Apparatus and methods for shaping metal sheets
US20100146757A1 (en) * 2008-12-11 2010-06-17 The Material Works, Ltd. Method and Apparatus for Breaking Scale from Sheet Metal with Recoiler Tension and Rollers Adapted to Generate Scale Breaking Wrap Angles
US8707529B2 (en) * 2008-12-11 2014-04-29 The Material Works, Ltd. Method and apparatus for breaking scale from sheet metal with recoiler tension and rollers adapted to generate scale breaking wrap angles
CN102971096A (zh) * 2010-06-23 2013-03-13 矿山机械和轧钢机械制造有限公司 拉伸弯曲矫直设备
CN102971096B (zh) * 2010-06-23 2015-02-04 矿山机械和轧钢机械制造有限公司 拉伸弯曲矫直设备
US10010918B2 (en) 2016-10-05 2018-07-03 Allor Manufacturing Inc. Device and method for leveling a metal plate
US10137488B2 (en) 2016-10-05 2018-11-27 Allor Manufacturing Inc. Device and method for leveling a metal plate
CN109299541A (zh) * 2018-09-25 2019-02-01 首钢集团有限公司 一种带钢的拉矫处理方法及装置
CN109299541B (zh) * 2018-09-25 2023-06-16 首钢集团有限公司 一种带钢的拉矫处理方法及装置
RU2808318C1 (ru) * 2022-09-21 2023-11-28 ВИСДРИ ИНЖИНИРИНГ энд РИСЕРЧ ИНКОРПОРЕЙШН ЛИМИТЕД Правильно-растяжная машина для правки полос из листового металла

Also Published As

Publication number Publication date
GB1447781A (en) 1976-09-02
FR2205379B3 (enrdf_load_stackoverflow) 1976-09-17
CA974868A (en) 1975-09-23
FR2205379A1 (enrdf_load_stackoverflow) 1974-05-31

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