US3619881A - Cold rolling work roll - Google Patents

Cold rolling work roll Download PDF

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Publication number
US3619881A
US3619881A US792079*A US3619881DA US3619881A US 3619881 A US3619881 A US 3619881A US 3619881D A US3619881D A US 3619881DA US 3619881 A US3619881 A US 3619881A
Authority
US
United States
Prior art keywords
roll
depressions
work roll
strip
roughness
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US792079*A
Other languages
English (en)
Inventor
Max E Bills
Henry J Hansen Jr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
United States Steel Corp
Original Assignee
United States Steel Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by United States Steel Corp filed Critical United States Steel Corp
Application granted granted Critical
Publication of US3619881A publication Critical patent/US3619881A/en
Anticipated expiration legal-status Critical
Assigned to USX CORPORATION, A CORP. OF DE reassignment USX CORPORATION, A CORP. OF DE MERGER (SEE DOCUMENT FOR DETAILS). Assignors: UNITED STATES STEEL CORPORATION (MERGED INTO)
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
    • B21B27/005—Rolls with a roughened or textured surface; Methods for making same
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
    • B21B1/227—Surface roughening or texturing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
    • B23H9/00—Machining specially adapted for treating particular metal objects or for obtaining special effects or results on metal objects
    • B23H9/04—Treating surfaces of rolls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2267/00—Roll parameters
    • B21B2267/10—Roughness of roll surface
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12389—All metal or with adjacent metals having variation in thickness
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12993—Surface feature [e.g., rough, mirror]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24355—Continuous and nonuniform or irregular surface on layer or component [e.g., roofing, etc.]

Definitions

  • a work roll for cold rolling steel sheets or strip has a plurality of shallow generally frustospherical depressions in its outer surface. The vast majority of the depressions are of substantially uniform shape and depth, but may be randomly spaced over the roll surface. When the sheet is rolled between two rolls, at least one of which has the described surface, low generally frustospherical projections of substantially uniform shape and height are obtained on that side of the strip in contact with the surfaced roll.
  • This invention relates to a cold rolled sheet, to a method of making the same, and to a work roll for use in the method.
  • the resultant roll roughness pattern is characterized by randomness with respect to the shape, size and distribution of the topographical features. It is common practice for the customer to request a particular surface on the cold rolled strip, which is identified as so many microinches roughness as obtained by a standard profilometer measuring device. However, the reading obtained is such that it has relatively little relationship to the true type of surface. In other words, the same reading by the profilometer may result from surfaces having a substantial difference in appearance and/ or a substantial difference in the shape and arrangement of the depressions. Since it is desirable that the surfaces of the strip have the same visual appearance and also that it have the same texture for receiving paint, it is clear that the process and the rolls now in use are not entirely satisfactory.
  • Another object is to provide an improved method of cold rolling a steel sheet to obtain a uniform, controllable, and reproducible surface thereon.
  • Still another object is to provide a work roll for use in the method of our invention.
  • FIG. 1 is a view of a conventional temper rolling mill in which the rolls of our invention are principally used
  • FIG. 2 is a schematic view showing depressions being generated in the surface of the roll according to our invention.
  • FIG. 3 is a magnified view of a replica of the roll surface resulting from our invention.
  • FIG. 4 is a magnified view of a replica of the roll surface resulting from shot blasting according to the prior art.
  • reference numeral 2 indicates an uncoiler from which strip S is uncoiled and passes through a set of rolls 4 to a coiler 6.
  • additional stands of rolls may be used at the entry side of rolls 4.
  • the number of stands is not important insofar as our invention is concerned, it only being necessary that the strip have a relatively smooth surface prior to passing through the rolls 4.
  • the rolls 4 are textured or roughened by means of the well known Electric Discharge Machining (EDM) operation, in which bursts of electrical energy 8 from electrode 10 volatilize and remove small amounts of metal from the surface of the roll. This method generates shallow depressions 12 in the outer surface of the roll, thus providing the desired roughening of the roll surface.
  • EDM Electric Discharge Machining
  • depressions 12 are of substantially uniform shape and depth, and, while closely spaced, are randomly spread over the outer surface of the roll. It will be seen that the depressions 12 are rounded and are substantially frustospherical. FIG. 2 shows only a few depressions 12 for the sake of clarity, but in the finished roll they will be very closely spaced.
  • the depth and diameter of the depressions 12 may vary over wide limits depending on the desired degree of roughening, this being a matter of selecting the proper electrical parameters for the individual electrical discharges so as to generate the desired degree of roughness in the roll surface. This procedure is well known and presents no problem to the operator.
  • the depth of the individual depressions is such as to provide an arithmetic average (AA) roughness in the roll surface of about 60 microinches, as measured with conventional profilometer measuring equipment, the individual depressions associated with such roughness vary approximately from .0005 to .001" in depth and from .010" to .020" in diameter. It will be understood that further variation will occur from these figures because the electrical discharges are compounded on one another and act in this manner to alter the dimensions of the individual roughness features.
  • the individual depressions are always rounded and of comparable depth for a given electrical setting of the EDM equipment, and it is from this characteristic that the unique features of the surface finish of our invention are derived. Sharp corners are essentially eliminated.
  • the roughness may vary from approximately 20 to approximately 400 microinches, but in most cases will be between 20 and microinches. Increasing the intensity or size of the electrical discharge increases the roughness and decreasing the intensity or size of the electrical discharges lowers the roughness of the roll surface.
  • FIG. 3 is an enlarged photograph of a replica made of the surface of a work roll textured by Electric Discharge Machining methods, it represents the ideal strip surface finish obtainable when using our rolls.
  • the work roll finish is superimposed to a degree over any other finish which the strip being rolled may possess, so that a perfect reproduction of the roll surface may not always be impressed into the steel surface.
  • the EDM type of roll surface will generate a strip finish consisting of rounded topographical features of generally consistent shape and size.
  • the regularity of shape and size of the topographical features of the EDM type surface shown in FIG. 3 are evident by contrast with the varying shape and size of the features of the shot blasted surface of FIG. 4.
  • a cold rolling work roll having a substantially cylindrical outer surface with a plurality of closely spaced shallow depressions therein, substantially all of said depressions being of substantially uniform shape and depth, the arithmetic average roughness of the cylindrical outer roll surface being substantially constant throughout and in the range between 20 and 400 microinches.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
  • Metal Rolling (AREA)
US792079*A 1969-01-17 1969-01-17 Cold rolling work roll Expired - Lifetime US3619881A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US79207969A 1969-01-17 1969-01-17
US11236271A 1971-02-03 1971-02-03

Publications (1)

Publication Number Publication Date
US3619881A true US3619881A (en) 1971-11-16

Family

ID=26809862

Family Applications (2)

Application Number Title Priority Date Filing Date
US792079*A Expired - Lifetime US3619881A (en) 1969-01-17 1969-01-17 Cold rolling work roll
US00112362A Expired - Lifetime US3754873A (en) 1969-01-17 1971-02-03 Cold rolled sheet

Family Applications After (1)

Application Number Title Priority Date Filing Date
US00112362A Expired - Lifetime US3754873A (en) 1969-01-17 1971-02-03 Cold rolled sheet

Country Status (6)

Country Link
US (2) US3619881A (enrdf_load_stackoverflow)
AT (1) AT302225B (enrdf_load_stackoverflow)
BE (1) BE744556A (enrdf_load_stackoverflow)
DE (1) DE2001915A1 (enrdf_load_stackoverflow)
FR (1) FR2032316B1 (enrdf_load_stackoverflow)
GB (1) GB1302841A (enrdf_load_stackoverflow)

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3796361A (en) * 1972-12-26 1974-03-12 A Rueckert Folding roller for use in a buckle folding machine
US3827269A (en) * 1972-11-06 1974-08-06 Gen Motors Corp Roll forming apparatus
US4775599A (en) * 1985-12-24 1988-10-04 Kawasaki Steel Corporation Cold rolled steel sheets having an improved press formability
US4783378A (en) * 1986-06-30 1988-11-08 Kawasaki Steel Corporation Steel sheets for drawing and ironing worked cans
US4795681A (en) * 1986-03-31 1989-01-03 Kawasaki Steel Corporation Steel sheets for painting and a method of producing the same
US4798772A (en) * 1986-01-17 1989-01-17 Kawasaki Steel Corporation Steel sheets for painting and a method of producing the same
US4841611A (en) * 1986-07-14 1989-06-27 Kawasaki Steel Corporation Work roll with dulled surface having geometrically patterned uneven dulled sections for temper rolling
US4917962A (en) * 1986-07-28 1990-04-17 Centre De Recherches Metallurgiques-Centrum Voor Research In De Metallurgie Metal product having improved luster after painting
US4978583A (en) * 1986-12-25 1990-12-18 Kawasaki Steel Corporation Patterned metal plate and production thereof
US5012062A (en) * 1989-07-18 1991-04-30 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Arc-textured high emittance radiator surfaces
US5025547A (en) * 1990-05-07 1991-06-25 Aluminum Company Of America Method of providing textures on material by rolling
US5308708A (en) * 1991-12-09 1994-05-03 Kawasaki Steel Corporation Cartridge shutter and material for its production
US5552235A (en) * 1995-03-23 1996-09-03 Bethlehem Steel Corporation Embossed cold rolled steel with improved corrosion resistance, paintability, and appearance
RU2492006C1 (ru) * 2012-07-24 2013-09-10 Александр Иванович Трайно Способ дрессировки стальных горячекатаных полос
US20150321232A1 (en) * 2014-05-12 2015-11-12 Patricia Stewart Apparatus and method for rolling metal
US9256129B2 (en) 2014-02-19 2016-02-09 Macdermid Printing Solutions, Llc Method for creating surface texture on flexographic printing elements
US20170165728A1 (en) * 2015-12-10 2017-06-15 Novelis Inc. Textured work roll for a metal substrate
US11213870B2 (en) * 2017-07-21 2022-01-04 Novelis Inc. Micro-textured surfaces via low pressure rolling

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4111032A (en) * 1974-11-06 1978-09-05 Societe Lorraine De Laminage Continu Process for producing a metal sheet to be deep drawn or extra-deep drawn for the fabrication of shaped metal parts
FR2290623A1 (fr) * 1974-11-06 1976-06-04 Lorraine Laminage Tole pour emboutissage profond ou extraprofond et procede d'obtention d'une telle tole
BE870609A (fr) * 1977-09-22 1979-01-15 Centre Rech Metallurgique Procede et dispositif pour ameliorer les proprietes des toles minces en acier
US4147425A (en) * 1978-05-01 1979-04-03 Polaroid Corporation Photographic processing roller having a surface roughened by electric discharge machining
US4233485A (en) * 1978-07-13 1980-11-11 Mitsubishi Denki Kabushiki Kaisha Process for electrical discharge machining of cylindrical work
DE3137827C2 (de) * 1981-09-23 1984-05-10 Krupp Stahl Ag, 4630 Bochum Verfahren zum Aufrauhen der Walzenoberfläche einer Dressierwalze für das Nachwalzen von Feinblech
US4553012A (en) * 1984-04-18 1985-11-12 Anderson Alex L Electrical discharge surface conditioning device
DE3713909A1 (de) * 1987-04-25 1988-11-10 Vaw Ver Aluminium Werke Ag Tiefziehfaehiges blech oder band aus aluminium oder aluminiumlegierungen sowie verfahren zu seiner herstellung
EP0436762A1 (de) * 1990-01-12 1991-07-17 Bwg Bergwerk- Und Walzwerk-Maschinenbau Gmbh Verfahren und Anlage zum Erzeugen einer vorgegebenen Streckgrenzen-Festigkeit und Oberflächenrauhigkeit im Zuge des Kaltnachwalzens vorbehandelter Metallbänder
US5543961A (en) * 1993-06-10 1996-08-06 The United States Of America As Represented By The Administator Of The National Aeronautics And Space Administration Far-infrared diffuse reflector
ZA952133B (en) * 1994-03-30 1995-12-18 Sidmar Nv Method and device for manufacturing cold rolled metal sheets or strips and metal sheets or strips obtained
US5818006A (en) * 1995-12-07 1998-10-06 Ford Global Technologies, Inc. Surface preparation electrical discharge apparatus and method
RU2149717C1 (ru) * 1999-01-19 2000-05-27 Акционерное общество "Новолипецкий металлургический комбинат", (ОАО "НЛМК") Способ получения оцинкованной полосовой стали для последующего нанесения высококачественных лакокрасочных покрытий
DE10115802A1 (de) * 2001-03-30 2003-01-23 Bayerische Motoren Werke Ag Überlagerungslenksystem für Kraftfahrzeuge
RU2196650C1 (ru) * 2001-06-27 2003-01-20 Закрытое акционерное общество "ТЕХНОМАГ" Способ формирования микрогеометрии поверхности катанки и мелкого сорта
RU2196652C1 (ru) * 2001-06-27 2003-01-20 Закрытое акционерное общество "ТЕХНОМАГ" Способ подготовки поверхности заготовки для волочения
RU2183515C1 (ru) * 2001-06-28 2002-06-20 Платов Сергей Иосифович Способ дрессировки горячекатаного стального листа
RU2238160C1 (ru) * 2003-04-22 2004-10-20 ООО "ПромИнвест" Способ формирования шероховатости поверхности заготовки под волочение
RU2596565C1 (ru) * 2015-06-09 2016-09-10 Публичное акционерное общество "Северсталь" (ПАО "Северсталь") Способ производства горячеоцинкованного проката
CN109424844B (zh) 2017-08-29 2021-10-19 宝山钢铁股份有限公司 一种低摩擦系数和低波纹度的金属薄板

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3827269A (en) * 1972-11-06 1974-08-06 Gen Motors Corp Roll forming apparatus
US3796361A (en) * 1972-12-26 1974-03-12 A Rueckert Folding roller for use in a buckle folding machine
US4775599A (en) * 1985-12-24 1988-10-04 Kawasaki Steel Corporation Cold rolled steel sheets having an improved press formability
US4798772A (en) * 1986-01-17 1989-01-17 Kawasaki Steel Corporation Steel sheets for painting and a method of producing the same
US4795681A (en) * 1986-03-31 1989-01-03 Kawasaki Steel Corporation Steel sheets for painting and a method of producing the same
US4783378A (en) * 1986-06-30 1988-11-08 Kawasaki Steel Corporation Steel sheets for drawing and ironing worked cans
US4841611A (en) * 1986-07-14 1989-06-27 Kawasaki Steel Corporation Work roll with dulled surface having geometrically patterned uneven dulled sections for temper rolling
US4917962A (en) * 1986-07-28 1990-04-17 Centre De Recherches Metallurgiques-Centrum Voor Research In De Metallurgie Metal product having improved luster after painting
US5044076A (en) * 1986-07-28 1991-09-03 Centre de Recherches Metallurgiques--Centrum Voor Research in de Metallurgie Method for producing a metal product having improved lustre after painting
US4978583A (en) * 1986-12-25 1990-12-18 Kawasaki Steel Corporation Patterned metal plate and production thereof
US5012062A (en) * 1989-07-18 1991-04-30 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Arc-textured high emittance radiator surfaces
US5025547A (en) * 1990-05-07 1991-06-25 Aluminum Company Of America Method of providing textures on material by rolling
US5308708A (en) * 1991-12-09 1994-05-03 Kawasaki Steel Corporation Cartridge shutter and material for its production
US5552235A (en) * 1995-03-23 1996-09-03 Bethlehem Steel Corporation Embossed cold rolled steel with improved corrosion resistance, paintability, and appearance
RU2492006C1 (ru) * 2012-07-24 2013-09-10 Александр Иванович Трайно Способ дрессировки стальных горячекатаных полос
US9256129B2 (en) 2014-02-19 2016-02-09 Macdermid Printing Solutions, Llc Method for creating surface texture on flexographic printing elements
US10216086B2 (en) 2014-02-19 2019-02-26 Macdermid Graphics Solutions, Llc Method for creating surface texture on flexographic printing elements
US20150321232A1 (en) * 2014-05-12 2015-11-12 Patricia Stewart Apparatus and method for rolling metal
US10589327B2 (en) * 2014-05-12 2020-03-17 Arconic Inc. Apparatus and method for rolling metal
US20170165728A1 (en) * 2015-12-10 2017-06-15 Novelis Inc. Textured work roll for a metal substrate
JP2019507014A (ja) * 2015-12-10 2019-03-14 ノベリス・インコーポレイテッドＮｏｖｅｌｉｓ Ｉｎｃ． 金属基材用テクスチャー加工されたワークロール
US11213870B2 (en) * 2017-07-21 2022-01-04 Novelis Inc. Micro-textured surfaces via low pressure rolling
US11426777B2 (en) 2017-07-21 2022-08-30 Noveliss Inc. Systems and methods for controlling surface texturing of a metal substrate with low pressure rolling
US11638941B2 (en) 2017-07-21 2023-05-02 Novelis Inc. Systems and methods for controlling flatness of a metal substrate with low pressure rolling

Also Published As

Publication number Publication date
DE2001915A1 (de) 1970-07-23
FR2032316B1 (enrdf_load_stackoverflow) 1975-01-10
AT302225B (de) 1972-10-10
BE744556A (fr) 1970-07-01
US3754873A (en) 1973-08-28
FR2032316A1 (enrdf_load_stackoverflow) 1970-11-27
GB1302841A (enrdf_load_stackoverflow) 1973-01-10

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Legal Events

Date Code Title Description
AS Assignment

Owner name: USX CORPORATION, A CORP. OF DE, STATELESS

Free format text: MERGER;ASSIGNOR:UNITED STATES STEEL CORPORATION (MERGED INTO);REEL/FRAME:005060/0960

Effective date: 19880112