EP0228360A2 - Lubrification de l'écartement entre les cylindres d'un laminoir, en particulier un laminoir de bandes à chaud - Google Patents

Lubrification de l'écartement entre les cylindres d'un laminoir, en particulier un laminoir de bandes à chaud Download PDF

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Publication number
EP0228360A2
EP0228360A2 EP86890319A EP86890319A EP0228360A2 EP 0228360 A2 EP0228360 A2 EP 0228360A2 EP 86890319 A EP86890319 A EP 86890319A EP 86890319 A EP86890319 A EP 86890319A EP 0228360 A2 EP0228360 A2 EP 0228360A2
Authority
EP
European Patent Office
Prior art keywords
work rolls
lubricant
wear
area
roll
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.)
Withdrawn
Application number
EP86890319A
Other languages
German (de)
English (en)
Other versions
EP0228360A3 (fr
Inventor
Walter Dipl.-Ing. Taschner
Hans Rauchwarter
Arthur Dipl.-Ing. Netzer
Herbert Dipl.-Ing. Sondermann
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.)
Voestalpine AG
Original Assignee
Voestalpine AG
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 Voestalpine AG filed Critical Voestalpine AG
Publication of EP0228360A2 publication Critical patent/EP0228360A2/fr
Publication of EP0228360A3 publication Critical patent/EP0228360A3/fr
Withdrawn legal-status Critical Current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
    • B21B27/06—Lubricating, cooling or heating rolls
    • B21B27/10—Lubricating, cooling or heating rolls externally
    • 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
    • B21B1/24—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 in a continuous or semi-continuous process
    • B21B1/26—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 in a continuous or semi-continuous process by hot-rolling, e.g. Steckel hot mill
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2267/00—Roll parameters
    • B21B2267/24—Roll wear
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B39/14—Guiding, positioning or aligning work
    • B21B39/16—Guiding, positioning or aligning work immediately before entering or after leaving the pass

Definitions

  • the invention relates to a method for lubricating the roll gap area of a roll stand, in particular for hot strips, a lubricant being applied to the work rolls, and to an apparatus for carrying out the method.
  • a lubricant to the work rolls over the entire working width.
  • the lubricant can either be supplied to the work rolls with the cooling water via the support rolls, or advantageously sprayed onto the work rolls together with water using nozzles.
  • this known lubrication in the area of the roll gap brings about a considerable reduction in roll wear, the service life of the work rolls for a required sheet quality remains comparatively short, especially when hot-rolling sheet metal, because the known lubrication in the roll gap area with increasing roll wear leads to bead formation, especially during further processing the hot-rolled metal strips cannot prevent.
  • This bead formation is due to wear in the circumferential direction of the work rolls, which usually occurs in the longitudinal edge area of the rolling stock and is caused, inter alia, by an increased resistance to deformation of the rolling stock due to greater cooling in the longitudinal edge area.
  • the invention is therefore based on the object, a method of the type described with simple To improve means so that the service life of the work rolls can be significantly increased without having to fear a bulge impairing the sheet quality.
  • the invention solves this problem in that the lubricant is applied to the work rolls only in axial sections of the strongest roll wear that otherwise occurs in the case of unlubricated or uniformly lubricated roll gap areas.
  • the roll wear in this area is reduced, but not in the unlubricated area, so that due to reduced wear in the area of the greatest roll wear, approximately uniform wear over the working width of the work rolls is ensured that does not have a noticeable effect on the sheet quality.
  • the increased wear of the work rolls in the area of the heaviest roll load, which otherwise leads to the formation of grooves, is reduced by the lubrication to a level which is comparable to the wear of the work rolls in the unlubricated area outside the strongest load area. Due to the uniform roller wear across the working width, the required strip quality can also be ensured over a longer service life of the working rollers.
  • the adjustment of the lubrication to different rolling stock widths can be done easily be taken into account that the nozzles provided for spraying the lubricant onto the work rolls are arranged on the side guides upstream of the work rolls for the rolling stock, because in this case the spray area of the nozzles is automatically adjusted to the respective rolling stock width with the adjustment of the side guides.
  • a lubricant usually an oil-water emulsion, is applied to the work rolls 1 of a roll stand (not shown in detail), the support rolls of which are designated 2, in the area of the roll gap 3.
  • the lubricant is not applied evenly distributed over the working width of the work rolls, but only in axially delimited sections 4.
  • These lubrication sections 4 are in the area of the strongest wear of the work rolls 1, which occurs with unlubricated or continuously lubricated nip areas, so that the roll wear that occurs in the area of these sections 4 and otherwise leads to the formation of grooves is reduced to a level that corresponds to the wear of the work rolls in the unlubricated area, because the wear of this unlubricated area is not reduced in contrast to the wear in the area of the heaviest roll load .
  • nozzles 8 are provided in the side guides 7 for the rolling stock, the flat spray jet 9 thereof being directed against the work rolls 1.
  • These nozzles 8 are supplied with the lubricant via channels 11 connected to a feed line 10, which is preferably sprayed together with water via the nozzles 8.
  • the side guides 7 for the rolling stock 6 are according to FIGS. 2 and 3 slidably mounted transversely to the direction of the rolling stock 6 in a feed table 12, so that the nozzles 8 automatically adjusted to the rolling stock width when the side guides 7 are adjusted and the work rolls 1 are always in the Area of the longitudinal edges 5 of the rolling stock 6 are supplied with lubricant in an axially limited section 4.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Forging (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
EP86890319A 1985-12-20 1986-11-14 Lubrification de l'écartement entre les cylindres d'un laminoir, en particulier un laminoir de bandes à chaud Withdrawn EP0228360A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT3697/85 1985-12-20
AT369785A AT383753B (de) 1985-12-20 1985-12-20 Verfahren und vorrichtung zum schmieren des walzspaltbereiches eines walzgeruestes, insbesondere fuer warmbaender

Publications (2)

Publication Number Publication Date
EP0228360A2 true EP0228360A2 (fr) 1987-07-08
EP0228360A3 EP0228360A3 (fr) 1988-09-14

Family

ID=3554155

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86890319A Withdrawn EP0228360A3 (fr) 1985-12-20 1986-11-14 Lubrification de l'écartement entre les cylindres d'un laminoir, en particulier un laminoir de bandes à chaud

Country Status (4)

Country Link
EP (1) EP0228360A3 (fr)
JP (1) JPS62183906A (fr)
AT (1) AT383753B (fr)
DD (1) DD253952A5 (fr)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1339108A (en) * 1918-09-06 1920-05-04 Thomas D Hodge Roll-cooling means
US1988679A (en) * 1931-11-25 1935-01-22 Badlam Stephen Rolling mill
DE1034572B (de) * 1957-01-28 1958-07-24 Achenbach Soehne Ges Mit Besch Vorrichtung zum zonenweisen Einfetten der Walzenballen bei Walzwerken fuer das Trockenwalzen von Blechen, Streifen und Baendern
US3802237A (en) * 1972-05-26 1974-04-09 United States Steel Corp Localized strip shape control and display
SU827199A1 (ru) * 1979-01-31 1981-05-07 Коммунарский Горно-Металлургическийинститут Способ охлаждени вертикальных прокатныхВАлКОВ C КАлибРАМи
JPS56126014A (en) * 1980-03-11 1981-10-02 Ishikawajima Harima Heavy Ind Co Ltd Controller for shape of rolled sheet
DE3023958A1 (de) * 1975-07-26 1982-01-14 Achenbach Buschhütten GmbH, 5910 Kreuztal Vorrichtung zum zonenweisen aufbringen von fliessfaehigen stoffen auf die walzenballen bei walzwerken
JPS59229209A (ja) * 1983-06-08 1984-12-22 Sumitomo Metal Ind Ltd パタ−ンレス圧延方法

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE842903A (fr) * 1976-06-11 1976-10-01 Centre Rech Metallurgique Procede et dispositif pour le refroidissement des cylindres a cannelures

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1339108A (en) * 1918-09-06 1920-05-04 Thomas D Hodge Roll-cooling means
US1988679A (en) * 1931-11-25 1935-01-22 Badlam Stephen Rolling mill
DE1034572B (de) * 1957-01-28 1958-07-24 Achenbach Soehne Ges Mit Besch Vorrichtung zum zonenweisen Einfetten der Walzenballen bei Walzwerken fuer das Trockenwalzen von Blechen, Streifen und Baendern
US3802237A (en) * 1972-05-26 1974-04-09 United States Steel Corp Localized strip shape control and display
DE3023958A1 (de) * 1975-07-26 1982-01-14 Achenbach Buschhütten GmbH, 5910 Kreuztal Vorrichtung zum zonenweisen aufbringen von fliessfaehigen stoffen auf die walzenballen bei walzwerken
SU827199A1 (ru) * 1979-01-31 1981-05-07 Коммунарский Горно-Металлургическийинститут Способ охлаждени вертикальных прокатныхВАлКОВ C КАлибРАМи
JPS56126014A (en) * 1980-03-11 1981-10-02 Ishikawajima Harima Heavy Ind Co Ltd Controller for shape of rolled sheet
JPS59229209A (ja) * 1983-06-08 1984-12-22 Sumitomo Metal Ind Ltd パタ−ンレス圧延方法

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, Band 6, Nr. 1 (M-105)[879], 7. Januar 1982; & JP-A-56 126 014 (ISHIKAWAJIMA HARIMA JUKOGYO K.K.) 02-10-1981 *
PATENT ABSTRACTS OF JAPAN, Band 9, Nr. 107 (M-378)[1830], 11. Mai 1985; & JP-A-59 229 209 (SUMITOMO KINZOKU KOGYO K.K.) 22-12-1984 *
SOVIET INVENTIONS ILLUSTRATED, Woche E08, M21,P51, 7. April 1982, Nr. 15240 E/08, Derwent Publications Ltd., London, GB; & SU-A-827 199 (KOMM MINING METAL) 07-05-1981 *

Also Published As

Publication number Publication date
EP0228360A3 (fr) 1988-09-14
JPS62183906A (ja) 1987-08-12
DD253952A5 (de) 1988-02-10
AT383753B (de) 1987-08-25
ATA369785A (de) 1987-01-15

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Inventor name: NETZER, ARTHUR, DIPL.-ING.

Inventor name: TASCHNER, WALTER, DIPL.-ING.

Inventor name: SONDERMANN, HERBERT, DIPL.-ING.

Inventor name: RAUCHWARTER, HANS