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WO1997046333A1 - Procede et dispositif pour traiter de la tole fine a l'aide de rouleaux presses contre ladite tole fine, notamment des cylindres - Google Patents

Procede et dispositif pour traiter de la tole fine a l'aide de rouleaux presses contre ladite tole fine, notamment des cylindres Download PDF

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Publication number
WO1997046333A1
WO1997046333A1 PCT/EP1997/001747 EP9701747W WO9746333A1 WO 1997046333 A1 WO1997046333 A1 WO 1997046333A1 EP 9701747 W EP9701747 W EP 9701747W WO 9746333 A1 WO9746333 A1 WO 9746333A1
Authority
WO
WIPO (PCT)
Prior art keywords
rollers
condensate
sheet metal
nozzles
steam
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.)
Ceased
Application number
PCT/EP1997/001747
Other languages
German (de)
English (en)
Inventor
Michael Peters
Gerhard Neba
Herbert Eichelkraut
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.)
Thyssen Stahl AG
Original Assignee
Thyssen Stahl 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 Thyssen Stahl AG filed Critical Thyssen Stahl AG
Publication of WO1997046333A1 publication Critical patent/WO1997046333A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • B21B1/227—Surface roughening or texturing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B28/00—Maintaining rolls or rolling equipment in effective condition
    • B21B28/02—Maintaining rolls in effective condition, e.g. reconditioning
    • B21B28/04—Maintaining rolls in effective condition, e.g. reconditioning while in use, e.g. polishing or grinding while the rolls are in their stands
    • 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
    • B21B1/30—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 non-continuous process
    • B21B1/32—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 non-continuous process in reversing single stand mills, e.g. with intermediate storage reels for accumulating work
    • B21B1/36—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 non-continuous process in reversing single stand mills, e.g. with intermediate storage reels for accumulating work by cold-rolling
    • 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
    • B21B2001/228—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 skin pass rolling or temper rolling
    • 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
    • B21B1/38—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 sheets of limited length, e.g. folded sheets, superimposed sheets, pack rolling
    • B21B2001/383—Cladded or coated products
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B2015/0071—Levelling the rolled product

Definitions

  • the invention has for its object to provide a method and an apparatus for treating, in particular, fire-coated sheet metal by using rollers pressed against the sheet, in particular rollers, with or with which a high, constant surface quality can be achieved over a long service life with little effort of the thin sheet can be achieved.
  • this object is achieved in that the surface (s) of the roller (s) or roller (s), in particular a Dre ⁇ siergerüst ⁇ , is moistened with inflated water vapor condensing on them.
  • the task is carried out with a set of rollers, in particular a Dresden scaffold with over Feed lines fed with water vapor and released with their steam jets directed onto the surface (s) of the roller (s) or roller (s).
  • the invention is preferably used in skin training. Therefore, the following design features are related to skin training; nevertheless, they can also be used in a corresponding manner in other methods and devices which treat the strip with rollers, such as stretch straightening, with appropriate adaptation.
  • the amount of steam and the condensate formed therefrom are small in comparison to the volumes of water obtained during wet drying, so that they enable the use of devices for the supply of steam and for the removal of the condensate, compared to the devices required for wet driving make a much less effort necessary and build smaller.
  • the use of steam is also unproblematic because steam can be made available regularly from the internal steam network in steelworks, where the strips are cut.
  • the invention is also suitable for retrofitting existing Dres ⁇ iergerüste, for example in hot-dip coating systems.
  • the invention can also be used in stretch leveling machines, where the use of steam prevents build-ups on the surfaces of the work and backup rolls.
  • the water vapor is preferably inflated on the inlet side of the rollers or the rollers on their surface. Additives for corrosion protection and / or for reducing the coefficient of friction can be added to the water vapor.
  • collecting devices are preferably installed underneath the nozzles for the top roller, which catch condensate formed on the nozzles and thus prevent the formation of drops by condensate dripping onto the belt surface.
  • the steam feeds are designed so that the condensate is dispensed via devices for condensate separation, for example condensate separators or Return lines, is discharged and none
  • Tropf chenbil fertilizer can occur in the emerging steam stream.
  • the three-phase stand shown in FIG. 1 in a schematic side view for belts B is designed as a four-high unit.
  • nozzles 3, 4 are assigned to its two Dres ⁇ ierwalzen 1, 2, which are fed with steam via feed lines 5, 6.
  • the nozzles 3, 4 are, for example, each arranged in a row at a distance of approximately 50 mm from the roller surface and at a distance of 100 mm from one another in a row.
  • the steam jets are directed onto the surface of the rotary rollers 1, 2.
  • the amount of steam supplied can be dosed via slides 7, 8 in the feed lines 5, 6.
  • condensate When steam is supplied, condensate can generally form at three points, namely at the outlets of the nozzles 3, 4, their feed lines 5, 6 and on the surfaces of the skin pass rolls 1, 2. While this is on the surfaces of the rolls forming condensate is desired, it is undesirable for water droplets from the condensing steam to get onto the belt or onto the surfaces of the rotary rollers 1, 2 at the outlets of the nozzles 3, 4 and in the feed lines 5, 6. For this purpose, a collecting trough 9 is assigned above the band of the nozzle 3. Condensate separators, not shown, are assigned to the feed lines 5, 6. Because of the small amount of condensate produced, no drip pan is provided for the lower nozzles 4.
  • the condensate forming in the collecting trough 9 and in the condensate separators is discharged via return lines 10, 11, 12 to disposal devices (not shown).
  • the conveying in the return line 12 starting from the collecting trough 9 can take place by discharging steam from the supply line 5 via a return line 13.
  • FIG. 2 shows the result of dry and steam cutting, specifically for the roughness of the upper and lower side of the strip of 13 coils rolled in succession on the same skin pass mill with the same initial roughness of the three-pass rolls.
  • This comparison of dry and steam drying shows that with steam spraying the roughness can be transferred much better than with dry drying.
  • four times the length of the strip can be achieved in steam spraying compared to dry spraying without falling below the required surface roughness.
  • FIG. 3 shows the results of the skin-dressing on a single belt, in which up to a belt length x x a belt was first dry-addressed on both sides and then changed over to steam steaming on both sides. It is also clear from this example that the roughness transfer when steaming is essentially better than when drying. When wet driving with water, for none

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Laminated Bodies (AREA)
  • Coating With Molten Metal (AREA)
  • Drying Of Solid Materials (AREA)

Abstract

L'invention concerne un procédé permettant de traiter, notamment de dresser en particulier un feuillard laminé à froid recouvert à chaud, ainsi qu'un dispositif correspondant. Afin d'augmenter la durabilité des cylindres de dressage (1, 2) et/ou d'améliorer le transfert de rugosité ou d'éviter la formation de défauts superficiels au niveau du feuillard lors du dressage avec étirage, les surfaces des cylindres de dressage (1, 2) ou les rouleaux sont humidifiés avec de la vapeur d'eau en évaporation qui vient se condenser sur eux.
PCT/EP1997/001747 1996-05-31 1997-04-09 Procede et dispositif pour traiter de la tole fine a l'aide de rouleaux presses contre ladite tole fine, notamment des cylindres Ceased WO1997046333A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1996121837 DE19621837C1 (de) 1996-05-31 1996-05-31 Verfahren und Vorrichtung zum Behandeln von insbesondere feuerbeschichtetem Feinblech unter Einsatz von gegen das Feinblech gedrückter Rollen, insbesondere Walzen
DE19621837.3 1996-05-31

Publications (1)

Publication Number Publication Date
WO1997046333A1 true WO1997046333A1 (fr) 1997-12-11

Family

ID=7795759

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1997/001747 Ceased WO1997046333A1 (fr) 1996-05-31 1997-04-09 Procede et dispositif pour traiter de la tole fine a l'aide de rouleaux presses contre ladite tole fine, notamment des cylindres

Country Status (3)

Country Link
AR (1) AR007167A1 (fr)
DE (1) DE19621837C1 (fr)
WO (1) WO1997046333A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116944249A (zh) * 2023-07-20 2023-10-27 北京首钢冷轧薄板有限公司 一种带钢的平整方法和装置

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19848174A1 (de) * 1998-10-20 2000-05-04 Bwg Bergwerk Walzwerk Verfahren und Vorrichtung zum Reinigen von Walzen und/oder Rollen in Bandgießanlagen, Walzwerken und/oder Bandprozeßlinien, insbesondere Dressierwerken o. dgl. Nachwalzwerken
DE50104137D1 (de) * 2000-08-22 2004-11-18 Linde Ag Verfahren und vorrichtung zur entfernung metallischer verunreinigungen
DE102011090098A1 (de) 2011-12-29 2013-07-04 Sms Siemag Ag Verfahren und Vorrichtung zum Walzen von Walzgut sowie Verwendung eines Kühlschmierstoffes
PL445022A1 (pl) * 2023-05-26 2024-12-02 Politechnika Śląska Sposób umacniania wyrobów metalowych, zwłaszcza pasm blach lub prętów

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR342352A (fr) * 1903-10-08 1904-09-06 Richard Rees Procédé et dispositif pour empecher l'échauffement excessif des cylindres métalliques
US1954027A (en) * 1929-10-07 1934-04-10 Smith Ira Edward Automatic temperature control apparatus for hot rolls
FR2454342A1 (fr) * 1979-04-19 1980-11-14 Usinor Procede et dispositif de lubrification de cylindres de laminoirs
SU995932A1 (ru) * 1981-07-27 1983-02-15 Коммунарский горно-металлургический институт Способ охлаждени прокатных валков
JPS59143506U (ja) * 1983-03-18 1984-09-26 日ノ出エンジニアリング株式会社 ロ−ル清掃装置
JPS61147901A (ja) * 1984-12-19 1986-07-05 Nippon Steel Corp 亜鉛系メツキ鋼板の調質圧延方法
JPS63309304A (ja) * 1987-06-09 1988-12-16 Nisshin Steel Co Ltd 飛び込み疵や圧延油疵を防止する圧延方法
EP0385097A2 (fr) * 1989-03-03 1990-09-05 Hoesch Stahl Aktiengesellschaft Procédé pour obtenir une microcouche protectrice
JPH0327803A (ja) * 1989-06-27 1991-02-06 Nkk Corp 亜鉛系めっき鋼帯の調質圧延装置及び圧延方法
DE4032049A1 (de) * 1990-10-09 1992-04-16 Henkel Kgaa Nitritfreie waessrige nassdressiermittel fuer stahl und verzinkten stahl

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR342352A (fr) * 1903-10-08 1904-09-06 Richard Rees Procédé et dispositif pour empecher l'échauffement excessif des cylindres métalliques
US1954027A (en) * 1929-10-07 1934-04-10 Smith Ira Edward Automatic temperature control apparatus for hot rolls
FR2454342A1 (fr) * 1979-04-19 1980-11-14 Usinor Procede et dispositif de lubrification de cylindres de laminoirs
SU995932A1 (ru) * 1981-07-27 1983-02-15 Коммунарский горно-металлургический институт Способ охлаждени прокатных валков
JPS59143506U (ja) * 1983-03-18 1984-09-26 日ノ出エンジニアリング株式会社 ロ−ル清掃装置
JPS61147901A (ja) * 1984-12-19 1986-07-05 Nippon Steel Corp 亜鉛系メツキ鋼板の調質圧延方法
JPS63309304A (ja) * 1987-06-09 1988-12-16 Nisshin Steel Co Ltd 飛び込み疵や圧延油疵を防止する圧延方法
EP0385097A2 (fr) * 1989-03-03 1990-09-05 Hoesch Stahl Aktiengesellschaft Procédé pour obtenir une microcouche protectrice
JPH0327803A (ja) * 1989-06-27 1991-02-06 Nkk Corp 亜鉛系めっき鋼帯の調質圧延装置及び圧延方法
DE4032049A1 (de) * 1990-10-09 1992-04-16 Henkel Kgaa Nitritfreie waessrige nassdressiermittel fuer stahl und verzinkten stahl

Non-Patent Citations (5)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Section Ch Week 8444, Derwent World Patents Index; Class M21, AN 84-274468 [44], XP002036611 *
PATENT ABSTRACTS OF JAPAN vol. 010, no. 349 (M - 538) 26 November 1986 (1986-11-26) *
PATENT ABSTRACTS OF JAPAN vol. 013, no. 148 (M - 812) 11 April 1989 (1989-04-11) *
PATENT ABSTRACTS OF JAPAN vol. 015, no. 155 (M - 1104) 18 April 1991 (1991-04-18) *
ZALMAN PADWO ET AL: "SKINPASS ROUGHNESS TRANSFER ON GALVANIZED AND CONCOATED STEEL PRODUCTS", IRON AND STEEL ENGINEER, vol. 71, no. 7, 1 July 1994 (1994-07-01), pages 35 - 40, XP000465123 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116944249A (zh) * 2023-07-20 2023-10-27 北京首钢冷轧薄板有限公司 一种带钢的平整方法和装置

Also Published As

Publication number Publication date
AR007167A1 (es) 1999-10-13
DE19621837C1 (de) 1997-09-11

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