EP1704000A1 - Procede de lubrification de produits a laminer - Google Patents

Procede de lubrification de produits a laminer

Info

Publication number
EP1704000A1
EP1704000A1 EP04820950A EP04820950A EP1704000A1 EP 1704000 A1 EP1704000 A1 EP 1704000A1 EP 04820950 A EP04820950 A EP 04820950A EP 04820950 A EP04820950 A EP 04820950A EP 1704000 A1 EP1704000 A1 EP 1704000A1
Authority
EP
European Patent Office
Prior art keywords
lubricant
rolling
roll
rolling stock
milling material
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.)
Granted
Application number
EP04820950A
Other languages
German (de)
English (en)
Other versions
EP1704000B1 (fr
Inventor
Christian Bilgen
Christoph Eichert
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.)
SMS Siemag AG
Original Assignee
SMS Demag 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=34751257&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1704000(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by SMS Demag AG filed Critical SMS Demag AG
Publication of EP1704000A1 publication Critical patent/EP1704000A1/fr
Application granted granted Critical
Publication of EP1704000B1 publication Critical patent/EP1704000B1/fr
Revoked legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
    • B21B45/0239—Lubricating
    • B21B45/0245—Lubricating devices
    • B21B45/0248—Lubricating devices using liquid lubricants, e.g. for sections, for tubes
    • B21B45/0251—Lubricating devices using liquid lubricants, e.g. for sections, for tubes for strips, sheets, or plates
    • 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
    • B21B1/46—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 metal immediately subsequent to continuous casting

Definitions

  • the invention relates to a method for rolling rolled material, in particular for hot wide strip rolling in a finishing train or a casting and rolling plant, in which a lubricant is applied directly to the surface of the work rolls or indirectly to the surface of the support rolls with transfer to the surface of the work rolls before the rolling stock runs into the roll gap of a roll stand, a strongly adhering lubricating film being formed on the work roll surface, which leads to a reduction in the friction in the roll gap as an intermediate layer between the roll and the rolling stock.
  • a device for automatic oil supply to a hot rolling mill stand through which a workpiece passes.
  • the device comprises an oil spray device for the roll stand, means for supplying oil to the spray device, means for initiating the operation of the oil supply means shortly after the front end of the workpiece passes through the roll stand, and means for ending the operation of the oil supply means just before the rear end of the workpiece reaches the roll stand.
  • DE 20 22 923 discloses a method and a device for applying a lubricant to a workpiece in a hot strip rolling mill, lubricant and atomizing air being dispensed at several spray nozzles in a four-roll stand provided with two work rolls and two backup rolls.
  • the spray nozzles are arranged across the width of at least one of these support rollers.
  • the starting point for lubricant delivery is the tapping in the frame in question.
  • a disadvantage of this method or device is that a closed lubricant film must first form on the backing roll surface, which is transferred to the backing roll / work roll gap on the work roll surface. From here, the lubricant gets into the roll gap. It takes too much time (several seconds) for the lubricant to reach the rolling stock, depending on the circumferential speed of the roll and the roll diameter. In such a method or in such a device, the strip head is not supplied with fresh lubricant during threading, which leads to higher rolling forces for a short time.
  • the gripping condition - this describes the conditions at the beginning of the rolling stock - is much more critical than the pulling condition.
  • the roll gap is completely filled with rolling stock. If one of the two conditions or both conditions are not met, slippage occurs, i.e. a slip between the roll and the rolling stock.
  • the gripping angle and the rolling speed play a role. Gripping capacity decreases with increasing rolling speed.
  • the gripping angle which depends on the thickness of the incoming rolling stock, the relative reduction in thickness during rolling and the diameter of the rolls, it must always be smaller than the friction angle in order to enable slip-free rolling.
  • the gripping angle in finished streets decreases from the first to the last stand. Then the biggest gripping problems, a slipping at the beginning of the rolling stock, occur in the first finishing stand.
  • the roll gap lubrication is used in such a way that the lubrication is only switched on after tapping in the respective stand and is switched off some time before the rolling stock is unthreaded. This leaves enough work roll overruns to completely burn the lubricant on the roll surface. This will prevent gripping at the beginning of the following rolling stock from being endangered.
  • the described lubrication strategy results in two different load levels within the rolling stock, provided that the preliminary strip or thin slab runs into the finishing train with homogeneous properties over the length and without speed-up.
  • active lubrication By reducing the rolling force with active lubrication, which can be up to 50% and more, the deflection of the work rolls changes. This changes the flatness status (mainly in the rear stands) and the profile (mainly in the front stands) of the rolling stock.
  • the invention is therefore based on the object of specifying a method for applying a lubricant to a work or back-up roll surface which enables the rolling process to be improved, leads to a reduction in the wear on the rolls and lowers the energy consumption of the finishing train.
  • the decisive advantage of the method according to the invention is that there is a constant level of rolling force over the entire length of the rolling stock the respective stand results because lubrication is maintained over the entire length of the rolling stock.
  • a prerequisite for the use of the lubrication according to the invention is that the gripping conditions at the beginning of the rolling stock are ensured.
  • the application of the lubricant according to the invention in a finishing train or a casting and rolling plant is advantageously possible from the second stand and for all subsequent stands without restriction.
  • no lubricant is generally applied due to the large thickness of the rolling stock (high gripping angle).
  • the existing conditions of the respective system are taken into account. These include, for example, the condition of the roll surface after grinding, the work roll diameter, the work roll material, the incoming strip thickness, • the set relative decrease, the surface condition of the incoming rolling stock (scale, temperature, roughness, material etc.), the lubricant used, the amount of lubricant, • the rolling speed.
  • the lubricating effect at the beginning of the rolling stock is reduced by a smaller amount of lubricant or by a modified, i.e. Lubricant with other properties limited to the top.
  • Another advantage of the method according to the invention is that with constant lubrication, a constant advance is achieved, which in turn results in a constant mass flow.
  • the roll gap lubrication is used in order to have a favorable influence on the shear texture on the surface.
  • the application of the lubricant according to the invention results in a homogeneous surface texture over the entire length of the rolling stock.
  • the lubrication system provides for the construction of a ring line with feedback in the lubricant tank and the installation of a switchable 3/2 way valve in front of the mixer for the lubricant (for example a static tube mixer).

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Continuous Casting (AREA)
  • Lubricants (AREA)

Abstract

L'invention concerne un procédé de laminage de produits, en particulier de laminage large bande, à chaud, dans un train finisseur ou dans une installation de laminage à coulée continue, procédé dans lequel un agent lubrifiant est appliqué directement sur la surface des cylindres de travail, ou indirectement, sur la surface des cylindres d'appui, avec transfert sur la surface des cylindres de travail, avant que le produit à laminer parvienne dans l'espace entre cylindres d'une cage de laminoir, de sorte qu'il se forme à la surface du cylindre de travail, un film lubrifiant adhérant fortement, lequel forme, dans l'espace entre cylindres, une couche intermédiaire entre le cylindre et le produit à laminer, entraînant ainsi une réduction de frottement. Le lubrifiant est appliqué sur toute la longueur du produit à laminer, de sorte que l'effet lubrifiant est actif sur toute la longueur du produit à laminer.
EP04820950A 2003-12-23 2004-11-30 Procede de lubrification de produits a laminer Revoked EP1704000B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10361493 2003-12-23
DE102004006130A DE102004006130A1 (de) 2003-12-23 2004-02-07 Verfahren zum Schmieren von Walzgut
PCT/EP2004/013571 WO2005065854A1 (fr) 2003-12-23 2004-11-30 Procede de lubrification de produits a laminer

Publications (2)

Publication Number Publication Date
EP1704000A1 true EP1704000A1 (fr) 2006-09-27
EP1704000B1 EP1704000B1 (fr) 2008-01-02

Family

ID=34751257

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04820950A Revoked EP1704000B1 (fr) 2003-12-23 2004-11-30 Procede de lubrification de produits a laminer

Country Status (17)

Country Link
US (1) US20090038356A1 (fr)
EP (1) EP1704000B1 (fr)
JP (1) JP2007515297A (fr)
KR (1) KR101140808B1 (fr)
CN (1) CN1898038B (fr)
AR (1) AR047573A1 (fr)
AT (1) ATE382440T1 (fr)
AU (1) AU2004311509A1 (fr)
BR (1) BRPI0417850A (fr)
CA (1) CA2547960A1 (fr)
DE (2) DE102004006130A1 (fr)
EG (1) EG24296A (fr)
ES (1) ES2295981T3 (fr)
RU (1) RU2364454C2 (fr)
TW (1) TW200533432A (fr)
WO (1) WO2005065854A1 (fr)
ZA (1) ZA200601118B (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007042898A1 (de) 2007-06-08 2008-12-11 Sms Demag Ag Verfahren und Vorrichtung zur Walzenschmierung
EP3517228A1 (fr) * 2018-01-29 2019-07-31 Primetals Technologies Austria GmbH Règles d'un processus de laminage
CN109332769A (zh) 2018-11-22 2019-02-15 青岛理工大学 一种不同润滑条件下的铣削系统及方法

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1296991A (fr) * 1969-02-28 1972-11-22
BE790448A (fr) * 1971-01-13 1973-02-15 Southwire Co Dispositif de refroidissement pour train de
US3911704A (en) * 1973-02-23 1975-10-14 Aluminum Co Of America Metal rolling
JPS5829169B2 (ja) * 1980-06-04 1983-06-21 新日本製鐵株式会社 連続式熱間圧延機の圧延潤滑油供給方法
JPS58176012A (ja) * 1982-04-07 1983-10-15 Hitachi Ltd 圧延機のゲ−ジ制御方法
CN1011491B (zh) * 1985-08-01 1991-02-06 塞格杜尔·皮奇尼铝加工公司 轧制板用轧机轧辊的连续清刷和润滑装置
CH669129A5 (de) * 1986-04-04 1989-02-28 Lonza Ag Schmierstoffsystem fuer blech- und profilwalzwerke.
JPH0377701A (ja) * 1989-08-15 1991-04-03 Sumitomo Metal Ind Ltd 熱間圧延の潤滑方法
JP3097685B2 (ja) * 1991-03-29 2000-10-10 株式会社日立製作所 圧延機及び熱間圧延設備及び圧延方法及び圧延機の改造方法
US5768927A (en) * 1991-03-29 1998-06-23 Hitachi Ltd. Rolling mill, hot rolling system, rolling method and rolling mill revamping method
JP3060691B2 (ja) * 1991-03-29 2000-07-10 株式会社日立製作所 圧延機及び熱間圧延設備及び圧延方法及び圧延機の改造方法
JPH0663634A (ja) * 1992-08-17 1994-03-08 Kawasaki Steel Corp 熱間潤滑圧延方法
ATE211031T1 (de) * 1995-11-20 2002-01-15 Sms Demag Ag Vorrichtung zur beeinflussung des profils von gewalztem walzband
FI108525B (fi) * 1999-06-14 2002-02-15 Outokumpu Oy Tapa parantaa voitelua valssauksessa
CN2399124Y (zh) * 1999-11-29 2000-10-04 刘晓星 热轧轧辊
CN2574794Y (zh) * 2002-09-28 2003-09-24 鞍钢集团新钢铁有限责任公司 一种热轧带钢轧制的润滑装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2005065854A1 *

Also Published As

Publication number Publication date
ZA200601118B (en) 2007-03-28
ATE382440T1 (de) 2008-01-15
AR047573A1 (es) 2006-01-25
JP2007515297A (ja) 2007-06-14
AU2004311509A1 (en) 2005-07-21
BRPI0417850A (pt) 2007-04-27
RU2364454C2 (ru) 2009-08-20
EG24296A (en) 2009-01-11
KR101140808B1 (ko) 2012-05-03
RU2006108529A (ru) 2006-07-10
DE502004005872D1 (de) 2008-02-14
TW200533432A (en) 2005-10-16
WO2005065854A1 (fr) 2005-07-21
CN1898038B (zh) 2011-03-09
US20090038356A1 (en) 2009-02-12
KR20060113667A (ko) 2006-11-02
CA2547960A1 (fr) 2005-07-21
CN1898038A (zh) 2007-01-17
DE102004006130A1 (de) 2005-07-28
ES2295981T3 (es) 2008-04-16
EP1704000B1 (fr) 2008-01-02

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