EP1704000B1 - Verfahren zum schmieren von walzgut - Google Patents

Verfahren zum schmieren von walzgut Download PDF

Info

Publication number
EP1704000B1
EP1704000B1 EP04820950A EP04820950A EP1704000B1 EP 1704000 B1 EP1704000 B1 EP 1704000B1 EP 04820950 A EP04820950 A EP 04820950A EP 04820950 A EP04820950 A EP 04820950A EP 1704000 B1 EP1704000 B1 EP 1704000B1
Authority
EP
European Patent Office
Prior art keywords
rolling
lubricant
rolling stock
roll
working
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.)
Revoked
Application number
EP04820950A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1704000A1 (de
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(B1) "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/de
Application granted granted Critical
Publication of EP1704000B1 publication Critical patent/EP1704000B1/de
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 stock, in particular for hot strip rolling in a finishing train or a casting mill, in which a lubricant, directly on the surface of the work rolls or indirectly on the surface of the support rollers with transfer to the surface of the work rolls, applied before the rolling stock enters the nip of a roll stand, forming a strong adhesive lubricant film on the work roll surface, which leads in the nip as an intermediate layer between the roll and rolling to reduce friction.
  • the apparatus comprises an oil spraying means for the rolling stand, means for supplying oil to the spraying means, means for initiating operation of the oil feeding means shortly after the leading end of the workpiece passes through the rolling stand, and means for stopping the operation of the oil feeding means just before the rear End of the workpiece reaches the mill.
  • a method and apparatus for applying a lubricant to a workpiece in a hot strip mill wherein lubricant and atomizing air are dispensed from a plurality of spray nozzles in a four-roll stand provided with two work rolls and two back-up rolls.
  • the spray nozzles are arranged across the width of at least one of these support rollers.
  • the starting point for the promotion of lubricant is the puncture in the scaffold under consideration.
  • a disadvantage of this method or this device is that first a closed Schmierstoffim must form on the back-up roll surface, which is transmitted in the gap back-up roll / work roll on the work roll surface. From here, the lubricant enters the nip. It takes too much time (several seconds) for the lubricant to reach the rolling stock, depending on the roller peripheral speed and roller diameter. In such a method or in such a device, the tape head is not supplied with fresh lubricant during threading, which leads briefly to higher rolling forces.
  • the grip angle and the rolling speed play a role.
  • the gripping capacity decreases.
  • the gripping angle which is dependent on the thickness of the incoming rolling stock, the relative reduction in thickness during rolling and the diameter of the rolls, it is said that it must always be smaller than the friction angle to allow slip-free rolling.
  • the gripping angle in finishing lines decreases from the first to the last stand. After that, the biggest gripping problems, a slippage at the beginning of the rolling stock, occur in the first finishing stand.
  • the roll gap lubrication is used so that the lubrication is switched on only after a puncture in the respective frame and is switched off some time before the removal of the rolling stock. In this way, enough work roll overruns remain to completely burn the lubricant on the roll surface. This will avoid that the gripping at the beginning of the subsequent rolling stock is compromised.
  • the described lubrication strategy results in two different load levels within the rolling stock, provided that the preliminary sliver or the thin slab enters the finishing train with homogeneous properties over the length and without speed-up.
  • the deflection of the work rolls changes. This simultaneously changes the flatness condition (mainly in the rear scaffolds) and profile (mainly in the front scaffolds) of the rolling stock.
  • the invention is therefore based on the object of specifying a method for applying a lubricant to a working or support roller surface, which enables an improvement of the rolling process, leads to a reduction in the wear of the rollers and lowers the energy consumption of the finishing train.
  • a lubrication system which conveys the lubricant from a reservoir via lines and nozzles to the working or support rollers, already 5 to 15 sec. Switched before entry of the rolling stock in the rolling stand, all dead times are compensated in the lubrication system, so that on In any case, before the tapping has formed a closed lubricating film on the work roll.
  • the decisive advantage of the method according to the invention is that over the entire length of the rolling stock a constant rolling force level for the respective framework results because a lubrication over the entire length of the rolling stock is maintained.
  • the lubricating effect is at the beginning of the rolling stock by a smaller amount of lubricant or by a modified, i. limited properties of other lubricants.
  • a further advantage of the method according to the invention is that a constant overfeed is achieved with constant lubrication, which in turn results in a constant mass flow.
  • roll-gap lubrication is used to favorably influence the shearing texture on the surface.
  • the application of the lubricant according to the invention brings about a homogeneous surface texture over the entire length of the rolling stock.
  • the lubrication system includes the construction of a ring line with return to the lubricant tank and the installation of a switchable 3/2-way valve in front of the lubricant mixer (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)
EP04820950A 2003-12-23 2004-11-30 Verfahren zum schmieren von walzgut Revoked EP1704000B1 (de)

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 (de) 2003-12-23 2004-11-30 Verfahren zum schmieren von walzgut

Publications (2)

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

Family

ID=34751257

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04820950A Revoked EP1704000B1 (de) 2003-12-23 2004-11-30 Verfahren zum schmieren von walzgut

Country Status (17)

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

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 (de) 2018-01-29 2019-07-31 Primetals Technologies Austria GmbH Regeln eines walzprozesses
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 (ko) * 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
EP0776710B1 (de) * 1995-11-20 2001-12-19 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

Also Published As

Publication number Publication date
RU2364454C2 (ru) 2009-08-20
RU2006108529A (ru) 2006-07-10
ATE382440T1 (de) 2008-01-15
ES2295981T3 (es) 2008-04-16
DE502004005872D1 (de) 2008-02-14
EP1704000A1 (de) 2006-09-27
WO2005065854A1 (de) 2005-07-21
CN1898038B (zh) 2011-03-09
BRPI0417850A (pt) 2007-04-27
JP2007515297A (ja) 2007-06-14
AU2004311509A1 (en) 2005-07-21
CA2547960A1 (en) 2005-07-21
KR20060113667A (ko) 2006-11-02
EG24296A (en) 2009-01-11
CN1898038A (zh) 2007-01-17
DE102004006130A1 (de) 2005-07-28
ZA200601118B (en) 2007-03-28
TW200533432A (en) 2005-10-16
AR047573A1 (es) 2006-01-25
US20090038356A1 (en) 2009-02-12
KR101140808B1 (ko) 2012-05-03

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