EP1924369A1 - Procede pour lubrifier et refroidir les cylindres et la bande metallique lors du laminage, notamment lors du laminage a froid de bandes metalliques - Google Patents

Procede pour lubrifier et refroidir les cylindres et la bande metallique lors du laminage, notamment lors du laminage a froid de bandes metalliques

Info

Publication number
EP1924369A1
EP1924369A1 EP06791668A EP06791668A EP1924369A1 EP 1924369 A1 EP1924369 A1 EP 1924369A1 EP 06791668 A EP06791668 A EP 06791668A EP 06791668 A EP06791668 A EP 06791668A EP 1924369 A1 EP1924369 A1 EP 1924369A1
Authority
EP
European Patent Office
Prior art keywords
rolling
model
strip
rolled strip
lubricant
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
EP06791668A
Other languages
German (de)
English (en)
Other versions
EP1924369B1 (fr
Inventor
Hartmut Pawelski
Ludwig Weingarten
Friedhelm Gieseler
Peter Jollet
Hans-Peter Richter
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
Application filed by SMS Demag AG filed Critical SMS Demag AG
Publication of EP1924369A1 publication Critical patent/EP1924369A1/fr
Application granted granted Critical
Publication of EP1924369B1 publication Critical patent/EP1924369B1/fr
Not-in-force 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
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/28—Control of flatness or profile during rolling of strip, sheets or plates
    • B21B37/30—Control of flatness or profile during rolling of strip, sheets or plates using roll camber control
    • B21B37/32—Control of flatness or profile during rolling of strip, sheets or plates using roll camber control by cooling, heating or lubricating the rolls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/28—Control of flatness or profile during rolling of strip, sheets or plates
    • B21B37/44—Control of flatness or profile during rolling of strip, sheets or plates using heating, lubricating or water-spray cooling of the product
    • 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
    • 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
    • B21B3/00—Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous metals
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/16—Control of thickness, width, diameter or other transverse dimensions
    • B21B37/24—Automatic variation of thickness according to a predetermined programme
    • B21B37/26—Automatic variation of thickness according to a predetermined programme for obtaining one strip having successive lengths of different constant thickness
    • 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
    • B21B45/0203—Cooling
    • B21B45/0209—Cooling devices, e.g. using gaseous coolants
    • 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
    • B21B45/0203—Cooling
    • B21B45/0209—Cooling devices, e.g. using gaseous coolants
    • B21B45/0215—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes
    • B21B45/0218—Cooling devices, e.g. using gaseous coolants using liquid coolants, 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
    • 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

Definitions

  • the invention relates to a method for lubricating and cooling of rolls and metal strip during rolling, especially during cold rolling, of metal strips, wherein at least on the inlet side, a lubricant and on the outlet side, a coolant is applied by spraying and wherein lubricating, cleaning and inerting substances or Gases (media) or their combination at the rolled strip bottom and on the rolled strip top and / or on the lower work roll or the upper work roll are supplied.
  • EP 0 367 967 B1 discloses such a method for cooling and lubricating rolls and rolling stock in cold rolling.
  • an oil / water emulsion containing oil phase is adjusted in a special emulsification according to partial tensile stresses in the rolled strip or in accordance with the gripping conditions between the roll and rolled strip and adjusted by a quantitative and type of use of the media to be emulsified.
  • the disadvantage is too high oil carrying with high water content and thus risk of rust on the finished steel strip or coating on the non-ferrous metal strip. Too high oil carrying means that residual oil remains on the metal strip, which must be removed by additional steps. If even environmental pollution by disposal occur, even higher production costs.
  • a cold rolling process of metallic rolling is also known, in which the rolling stock passes under room temperature for plastic deformation through the nip between counter-driven rollers, wherein in the region of the roll gap instead of cooling liquid inert gas is blown, which one below room temperature lying inert gas temperature, such as, for example, in liquid nitrogen, which is less than the rolling temperature.
  • the invention has for its object to achieve a higher production of high-quality metallic rolled strip by saving process steps, with better strip qualities by a more stable rolling process, in particular a friction adjustment in the nip, to be made possible.
  • a development of the invention consists in that the physical calculation model takes into account the following variables: the prediction and optimization,
  • Another embodiment provides that, during the rolling process, the following variables for the application of the liquid or gaseous lubricant and coolant are predefined on the basis of a regulation by the calculation model: - volume flow,
  • the advantages consist in, for example, a change in the mixing ratio of differently acting media, for example mixing of a substance with strongly nip friction-reducing action and a substance with little influence on the nip friction, however with high washing effect, can be made.
  • Another embodiment is provided to the effect that before the start of the rolling process data, such as. Walzkraft, strip tension, strip thickness u. Like. Be predefined in a stitch plan, which is processed in the computer program.
  • the invention is further embodied in that process data are used for specifying a control loop for strip thickness, rolling stock elongation, strip flatness, strip roughness and / or strip surface.
  • the above measures can also be applied during periods of variable rolling speed using the calculation model. In doing so, the setting of the desired strip surface (for example with regard to roughness or gloss and other quality features),
  • FIG. 1 is a block diagram of a cold rolling mill in conjunction with setting members that are operated on the basis of a model calculation (computer program),
  • FIG. 2 shows a block-type arrangement of the operating parameters or process data that is used for a physically based model calculation
  • FIG. 3 shows a block-by-block listing of the parameters used in the physics-based model calculation.
  • a rolling stand 1 for metal strips 2 (made of heavy or light metal of various alloys, for example) has upper and lower work rolls 3, 4 which are mounted between support rolls 5, 6 in chocks.
  • Fig. 1 shows a four-roll stand.
  • the described application is applicable to all types of rolling stands, such as a six-high rolling stand, a twenty-high rolling stand, a Duo stand, etc.).
  • the metal strip 2 is fed from a unwinding station 7 on an entrance side 7a to a winding station 8 on the Outlet side 8a out.
  • a pure lubricant 9 as a chemical composition
  • a coolant 10 is applied by spraying.
  • the lubricant 9 and the coolant 10 consist of lubricating, cleaning and inerting substances or gases and also form combinations thereof and are supplied to the rolled strip bottom 2a and to the rolled strip top 2b.
  • the lubricating active substances on the inlet side 7a form emulsions without high water content, emulsion base oils, rolling oils and / or additive concentrates.
  • the cleaning and inertizing substances consists of cryogenic inert gases, for example of nitrogen, and their combinations with other substances.
  • the device used for this purpose (FIG. 1) consists of flatness measuring devices 11a on the inlet side 7a and a flatness measuring device 11b on the outlet side 8a.
  • the speed of rolling rod 13 is measured with a speed gauge 12 and the forces acting with other measuring devices, so that the rolling strip quality 14, the properties of each metal produced, such as aluminum, steel, brass, copper u. Like., Can be determined.
  • the strip thickness 15 is measured continuously and over the width of the metal strip 2.
  • spray nozzle rows 16 for the supply of lubricant 9 in the targeted amount and distribution of a minimum lubrication 17.
  • such spray nozzle rows 16 for the lubrication of the upper and lower working rolls 3, 4 and the upper and lower support rolls 5, 6 are arranged.
  • upper spray nozzle rows 18 and lower spray nozzle rows 19 are provided for a nitrogen application 20 for cooling and inerting and, if appropriate, alternatively for lubricant 9 as a plot 21.
  • All substances for lubricating and cooling are determined in their variable quantity according to the computationally or empirically determined values of the model calculation of a computer model 22 and the corresponding signals are forwarded to the respective actuators in the actuators connected to the measuring devices.
  • the dependence of the lubricant quantity on the changing process parameters can be readjusted at short notice. In general, this results in a friction adjustment in the nip.
  • the minimal lubrication is characterized by the fact that only as much lubricant 9 is applied as is needed in the rolling process. This may be a so-called.
  • Base oil from various chemical substances a “Medium 1" for the minimum lubrication 17 can be mixed with a “Medium 2" of different type classes x, y to a “Medium n” until the required properties, such as viscosity and lubricity, for the minimum lubrication 17 is reached.
  • the process continues on the outlet side 8a on the basis of nitrogen deposition and application of alternative lubricants.
  • the package "1 in a circle” contains the tape speed from the speed measuring device 12 read from left to right, then the belt quality (eg tear resistance).
  • the strip tension 28 is determined from the flatness measuring device 11a.
  • the parameters of the rolling force 29 result from the roll diameter 30, the roll roughness 31, the roll material 32, the rolling torque 33, the roll temperature 34 and the thickness reduction 35 of the metal strip 2.
  • the analogous values are provided in the outlet side 8a.
  • Fig. 3 the individual considered, independent specifications for the computational model 22 are summarized: Thereafter, the process data 23 are obtained from physical variables, in the computational model 22 more sub-computer models (computer programs) are used.
  • the Stichplansley 36 is optimized by a basic model.
  • a tribological model 37 is used for the assessment of the lubricating film.
  • a temperature model 38 and the elastic deformations 39 of the rollers 3,4,5,6 are introduced according to previous findings.
  • a mechanical roll gap model 40 (computer program) is taken into account.
  • a model 41 for optimizing the surface quality is included the calculation model 22.
  • the friction adaptation to the rolling process 42 takes place taking into account the reduction rolling, during the temper rolling or during flexible rolling.
  • a hydrodynamic model 43 of the distribution of the lubricant 9 and a model (computer program) 44 for roughness (roll surface on the metal strip 2) are introduced.
  • specifications 45 for the rolling force 29 and the strip tension 28 are formed (left part of FIG. 3).
  • a prediction 48 and an optimization of the temperature development of the work rolls 3, 4 and of the metal strip 2 are to be formed in FIG. 3 (right part).
  • Lubricant determination 49 by type, viscosity and temperature must be specified.
  • strip surface quality optimization 50 and a choice of work roll roughness value should be introduced.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Lubricants (AREA)
  • Control Of Metal Rolling (AREA)
EP06791668A 2005-09-02 2006-08-25 Procede pour lubrifier et refroidir les cylindres et la bande metallique lors du laminage, notamment lors du laminage a froid de bandes metalliques Not-in-force EP1924369B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005042020A DE102005042020A1 (de) 2005-09-02 2005-09-02 Verfahren zum Schmieren und Kühlen von Walzen und Metallband beim Walzen, insbesondere beim Kaltwalzen, von Metallbändern
PCT/EP2006/008359 WO2007025682A1 (fr) 2005-09-02 2006-08-25 Procede pour lubrifier et refroidir les cylindres et la bande metallique lors du laminage, notamment lors du laminage a froid de bandes metalliques

Publications (2)

Publication Number Publication Date
EP1924369A1 true EP1924369A1 (fr) 2008-05-28
EP1924369B1 EP1924369B1 (fr) 2010-02-24

Family

ID=37402598

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06791668A Not-in-force EP1924369B1 (fr) 2005-09-02 2006-08-25 Procede pour lubrifier et refroidir les cylindres et la bande metallique lors du laminage, notamment lors du laminage a froid de bandes metalliques

Country Status (18)

Country Link
US (1) US8001820B2 (fr)
EP (1) EP1924369B1 (fr)
JP (1) JP5164844B2 (fr)
KR (1) KR20080039339A (fr)
CN (1) CN101253007A (fr)
AT (1) ATE458560T1 (fr)
AU (1) AU2006286797B2 (fr)
BR (1) BRPI0614932A2 (fr)
CA (1) CA2618836C (fr)
DE (2) DE102005042020A1 (fr)
EG (1) EG24894A (fr)
ES (1) ES2340320T3 (fr)
MX (1) MX2008000869A (fr)
MY (1) MY145255A (fr)
RU (1) RU2426613C2 (fr)
TW (1) TWI359704B (fr)
WO (1) WO2007025682A1 (fr)
ZA (1) ZA200709988B (fr)

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EP3181248B1 (fr) * 2015-12-18 2018-01-10 Muhr und Bender KG Procede et installation de fabrication d'une platine de tole
CN108367324B (zh) * 2015-12-23 2020-03-31 株式会社Posco 矫正系统及矫正方法
CN107127220B (zh) * 2016-02-26 2019-02-05 宝山钢铁股份有限公司 一种单机架冷轧轧制带钢表面残油控制装置和方法
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CN107433284B (zh) * 2016-05-25 2019-03-29 宝山钢铁股份有限公司 一种冷连轧机高速轧制过程的工艺润滑制度优化方法
CN106825068B (zh) * 2017-01-13 2019-05-03 北京科技大学 一种轧制过程带钢表面粗糙度的预测方法
CN108097723B (zh) * 2017-12-15 2024-03-19 无锡华精新材股份有限公司 轧制取向硅钢用20辊轧机分布式冷却装置和使用方法
CN108114985A (zh) * 2017-12-15 2018-06-05 无锡华精新材股份有限公司 一种20辊轧机冷却设备与高牌号取向硅钢制备方法
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DE102018202856B4 (de) * 2018-02-26 2023-02-16 Audi Ag Metallband für die Fertigung eines Bauteils und Verfahren zum Fertigen eines Bauteils aus einem Metallband
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CN110947774B (zh) * 2019-12-06 2020-12-01 东北大学 一种考虑轧制宽展的板形预测方法
CN111687222B (zh) * 2020-06-15 2022-07-08 浙江昊昌特材科技有限公司 不锈钢无缝钢管用自动化可逆冷轧机
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JP2009506891A (ja) 2009-02-19
ZA200709988B (en) 2008-08-27
TW200722197A (en) 2007-06-16
DE102005042020A1 (de) 2007-03-08
MY145255A (en) 2012-01-13
CN101253007A (zh) 2008-08-27
BRPI0614932A2 (pt) 2011-04-26
JP5164844B2 (ja) 2013-03-21
CA2618836C (fr) 2012-05-15
ES2340320T3 (es) 2010-06-01
US20090282884A1 (en) 2009-11-19
US8001820B2 (en) 2011-08-23
EP1924369B1 (fr) 2010-02-24
TWI359704B (en) 2012-03-11
EG24894A (en) 2010-12-13
RU2426613C2 (ru) 2011-08-20
ATE458560T1 (de) 2010-03-15
DE502006006271D1 (de) 2010-04-08
WO2007025682A1 (fr) 2007-03-08
MX2008000869A (es) 2008-03-26
KR20080039339A (ko) 2008-05-07
CA2618836A1 (fr) 2007-03-08
AU2006286797A1 (en) 2007-03-08
RU2008112666A (ru) 2009-10-10
AU2006286797B2 (en) 2010-11-25

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