EP0608286A1 - Procede de laminage a chaud et laminoir pour feuillard metallique. - Google Patents

Procede de laminage a chaud et laminoir pour feuillard metallique.

Info

Publication number
EP0608286A1
EP0608286A1 EP92921087A EP92921087A EP0608286A1 EP 0608286 A1 EP0608286 A1 EP 0608286A1 EP 92921087 A EP92921087 A EP 92921087A EP 92921087 A EP92921087 A EP 92921087A EP 0608286 A1 EP0608286 A1 EP 0608286A1
Authority
EP
European Patent Office
Prior art keywords
metal strip
work rolls
roll gap
jackets
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.)
Granted
Application number
EP92921087A
Other languages
German (de)
English (en)
Other versions
EP0608286B1 (fr
Inventor
Waldemar Wolpert
Friedrich Heymann
Manfred Moehlenkamp
Guenter Pietzko
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 Schloemann Siemag AG
Schloemann Siemag 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 Schloemann Siemag AG, Schloemann Siemag AG filed Critical SMS Schloemann Siemag AG
Publication of EP0608286A1 publication Critical patent/EP0608286A1/fr
Application granted granted Critical
Publication of EP0608286B1 publication Critical patent/EP0608286B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • 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

Definitions

  • the invention has for its object to provide a hot rolling method and a hot rolling mill for metal strip, with which it is possible to roll metal strips without surface defects caused by defects (peeling points or deposits) due to the surfaces of the work rolls.
  • the invention is based on a method for hot-rolling metal strip in one or more passes, spraying it on the inlet side and, if appropriate, on the outlet side of the roll stand (s) together with the work rolls a cooling liquid is cooled.
  • the solution according to the invention consists in the fact that the spraying of cooling liquid on the inlet side takes place in an area extending over the entire width of the metal strip as close as possible in front of the roll gap onto the metal strip and onto the jackets of the work rolls, in such a way that the The temperature on the surface of the jackets of the work rolls immediately before the roll gap is below the boiling temperature of the cooling liquid.
  • a hot rolling mill for metal strips consisting of one or more work rolls comprising rolling stands with the work rolls, at least on their inlet side, assigned spray nozzles for a cooling liquid.
  • the solution according to the invention consists in that the spray nozzles arranged on the feed side are directed onto or into the roll gap, such that the jackets of the work rolls and the metal strip are as close as possible in front of the one across the entire width of the metal strip to be rolled Cooling liquid extending region are applied.
  • the cooling of work rolls in hot rolling mills is optimally used to keep the jackets of the work rolls at a temperature that is not critical for a deformation of the jackets.
  • cooling liquid is not only selectively applied to the jackets of the work rolls, but also to the sides of the incoming warm metal strip facing the work rolls, the cooling liquid sprayed onto the metal strip protects the jackets of the work rolls from the radiant heat of the metal strip . Reheating of the already cooled surfaces of the work rolls shortly before entering the roll gap, as happens according to the method known from DE-C2 26 52 845 with wipers on the feed side, does not take place with it.
  • the cooling liquid preferably consists predominantly of water. Common lubricants can be added to the water. The boiling point of the coolant thus depends on the type and composition of the coolant.
  • a cooling liquid should be used, with which the surface temperature of the work rolls is kept below a temperature of 90 ° C to 110 ° C.
  • the surface temperature should preferably be brought to and maintained at a value of ⁇ 75 ° C., in particular ⁇ 50 ° C.
  • the area to which cooling liquid is applied and which extends into the roll gap should have a maximum width of 800 mm, preferably less than 500 mm, in the rolling direction.
  • the cooling intensity of the sprayed-on cooling liquid is particularly high when the spray nozzles are directed with their core jets onto the jackets of the work rolls.
  • the cooling liquid primarily hits the jackets and is deflected into the roll gap and onto the metal strip.
  • favorable turbulence is generated for uniform cooling of the metal strip, so that no strips which are detrimental to the strip quality can form or be avoided on the metal strip surfaces.
  • the roll stand has a lower and an upper work roll 1, 2 and supporting rolls 3, 4 supporting them.
  • An incoming warm metal strip 5, in particular steel strip, with a thickness D is reduced to a thickness d in this roll stand.
  • Spray nozzles 6, 7, 8, 9 for a cooling liquid are arranged on the inlet side of the metal strip 5 and on the outlet side over the entire width of the metal strip. While the outlet-side spray nozzles 8, 9 are directed towards the jackets of the work rolls 1, 2, the inlet-side spray nozzles 6, 7 are essentially directed towards or into the roll gap.
  • At least the spray nozzles 6, 7 on the inlet side are designed as flat jet nozzles, the spray cones of which overlap at an angle ⁇ in the edge regions such that uniform cooling over the width of the metal strip 5 is thereby achieved. While the core jets 10 of the lower spray nozzles 6 are directed exactly into the roll gap, the core jets 11 of the spray nozzles 7 are deflected by an angle ⁇ with respect to the jet direction in the roll gap, so that they hit the jacket of the work roll 2 at an angle and here in Direction of the tape 5 are deflected.
  • This second setting of the core jets 11 is preferred because this leads to greater turbulence of the cooling liquid and the area on the metal strip 5 covered by the spray cone with an opening angle ⁇ has a smaller width a than the width a 'of the spray cone the core jets 10 which are directed exactly into the roll gap.
  • this second setting causes, in particular, uniform cooling of the metal strip in the regions with the widths a and a '.
  • the shells of the work rolls 1, 2 are assigned temperature sensors 12, 13. They can be used to determine the surface temperature of the jackets in order to relate to the coolant to be sprayed on Adjust the temperature and volume in such a way that the jackets of the work rolls 1, 2 have a surface temperature at least immediately before the roll gap, which is below the boiling point of the cooling liquid. For this dimensioning, other influencing variables, such as the throughput speed of the metal strip 5 and possibly the surface temperature of the metal strip 5, can be taken into account, which can be determined by further sensors 14, 15.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Control Of Metal Rolling (AREA)
  • Belt Conveyors (AREA)
  • Catalysts (AREA)

Abstract

L'invention concerne un procédé de laminage à chaud et un laminoir pour feuillard métallique (5) comprenant une ou plusieurs cages de laminoir équipées de cylindres de travail (1, 2). Pour éviter des défauts de surface sur les cylindres de travail (1, 2), un liquide de refroidissement est projeté dans une zone étroite, directement devant l'emprise du laminoir, le dit liquide se déposant à la fois sur les enveloppes des cylindres (1, 2) et sur le feuillard (5). La température à la surface des enveloppes des cylindres de travail (1, 2) est alors réglée de manière à atteindre, au moins directement devant l'emprise, une température qui soit inférieure à la température d'ébullition du liquide de refroidissement.
EP92921087A 1991-10-18 1992-10-08 Procede de laminage a chaud et laminoir pour feuillard metallique Expired - Lifetime EP0608286B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4134599A DE4134599C1 (fr) 1991-10-18 1991-10-18
DE4134599 1991-10-18
PCT/EP1992/002314 WO1993007974A1 (fr) 1991-10-18 1992-10-08 Procede de laminage a chaud et laminoir pour feuillard metallique

Publications (2)

Publication Number Publication Date
EP0608286A1 true EP0608286A1 (fr) 1994-08-03
EP0608286B1 EP0608286B1 (fr) 1995-12-20

Family

ID=6443009

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92921087A Expired - Lifetime EP0608286B1 (fr) 1991-10-18 1992-10-08 Procede de laminage a chaud et laminoir pour feuillard metallique

Country Status (11)

Country Link
US (1) US5694799A (fr)
EP (1) EP0608286B1 (fr)
KR (1) KR100187334B1 (fr)
CN (1) CN1039102C (fr)
AT (1) ATE131754T1 (fr)
CA (1) CA2121341C (fr)
DE (1) DE4134599C1 (fr)
ES (1) ES2082510T3 (fr)
MX (1) MX9205952A (fr)
TW (1) TW207968B (fr)
WO (1) WO1993007974A1 (fr)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3422671B2 (ja) * 1997-12-05 2003-06-30 三菱重工業株式会社 熱間仕上圧延時のスケール疵生成抑制方法及び装置
JP3784948B2 (ja) * 1997-12-05 2006-06-14 三菱重工業株式会社 熱間仕上圧延時の表面酸化皮膜抑制方法及び装置
DE19953230C2 (de) * 1999-11-04 2003-08-28 C D Waelzholz Produktionsgmbh Kaltwalzverfahren
FR2803548B1 (fr) * 2000-01-10 2002-04-19 Vai Clecim Procede et dispositif de controle thermique du profil d'un cylindre dans un laminoir
DE10131369A1 (de) * 2001-06-28 2003-01-09 Sms Demag Ag Verfahren und Vorrichtung zum Kühlen und Schmieren von Walzen eines Walzgerüstes
DE10143252A1 (de) * 2001-09-04 2003-03-20 Sms Demag Ag Vorrichtung zum Auftragen von Schmierstoffen auf die Umfangsfläche von Walzen in Walzgerüsten
CA2551246C (fr) * 2003-12-24 2009-09-15 Sumitomo Metal Industries, Ltd. Systeme d'alimentation de lubrifiant et appareil et procede pour la fabrication de conduites sans soudure
BE1017462A3 (fr) * 2007-02-09 2008-10-07 Ct Rech Metallurgiques Asbl Dispositif et procede de refroidissement de cylindres de laminage en regime hautement turbulent.
KR100987527B1 (ko) * 2007-03-14 2010-10-13 가부시키가이샤 아이에이치아이 단수 교체 다단 압연기
EP2014379A1 (fr) * 2007-06-04 2009-01-14 ArcelorMittal France Laminoir avec dispositif de refroidissement et procédé de laminage
DE102008049537A1 (de) 2008-09-30 2010-04-01 Sms Siemag Aktiengesellschaft Verfahren und Vorrichtung zum Kühlen eines Vorbandes oder Bandes eines Metallstrangs in einem Warmwalzwerk
KR101077174B1 (ko) 2009-04-21 2011-10-27 주식회사 포스코 인라인 압연기의 워크롤 냉각 장치
CN101966606B (zh) * 2010-09-26 2011-12-07 南京航空航天大学 大型结构件铣削加工变形的控制方法及装置
JP6201430B2 (ja) * 2013-05-29 2017-09-27 新日鐵住金株式会社 冷間圧延機の潤滑油供給方法および潤滑圧延方法
WO2017115110A1 (fr) * 2015-12-30 2017-07-06 Arcelormittal Procédé et dispositif de refroidissement d'un substrat métallique
JP6614339B2 (ja) * 2016-04-28 2019-12-04 日本製鉄株式会社 Ｈ形鋼の製造方法
CN108856314A (zh) * 2018-07-12 2018-11-23 西南铝业（集团）有限责任公司 涂层金属带冷却装置
CN109967704A (zh) * 2019-05-10 2019-07-05 中冶赛迪重庆信息技术有限公司 一种连铸轧装置
KR102229519B1 (ko) * 2019-05-22 2021-03-18 한국원자력연구원 염기성 용액에 용해 가능한 우라늄 표적의 제조방법 및 이를 이용한 방사성 Mo-99의 추출방법

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SU127275A1 (ru) * 1959-09-19 1959-11-30 Л.А. Быков Склиз методической печи
US3301029A (en) * 1964-07-06 1967-01-31 Reynolds Metals Co Working aluminous metals
SE309765B (fr) * 1964-12-08 1969-04-08 Asea Ab
JPS499031B1 (fr) * 1970-12-22 1974-03-01
US3911704A (en) * 1973-02-23 1975-10-14 Aluminum Co Of America Metal rolling
SU571313A1 (ru) * 1975-04-18 1977-09-05 Московский Ордена Трудового Красного Знамени Институт Стали И Сплавов Способ охлаждени прокатных валков станов гор чей прокатки
DE2652845A1 (de) * 1976-11-20 1978-05-24 Schloemann Siemag Ag Einrichtung zum kuehlen der arbeitswalzen von warmbandstrassen
JPS5948688B2 (ja) * 1977-04-13 1984-11-28 株式会社日立製作所 可逆圧延機のク−ラント装置
US4247047A (en) * 1979-01-15 1981-01-27 Schaming Edward J Modular zoned digital coolant control system for strip mill rolls
JPS5945444B2 (ja) * 1980-12-22 1984-11-06 新日本製鐵株式会社 熱間圧延におけるロ−ル冷却方法
US4510784A (en) * 1983-10-11 1985-04-16 Kaiser Aluminum & Chemical Corporation Rolling mill spray bar
SU1227275A1 (ru) * 1984-07-04 1986-04-30 Всесоюзный Научно-Исследовательский И Проектный Институт По Очистке Технологических Газов,Сточных Вод И Использованию Вторичных Энергоресурсов Предприятий Черной Металлургии Способ охлаждени прокатных валков в процессе прокатки
NL8403821A (nl) * 1984-12-17 1986-07-16 Hoogovens Groep Bv Inrichting voor het koelen van een werkwals in een walstuig voor het walsen van metaalband.
JPH0755326B2 (ja) * 1986-03-27 1995-06-14 日本鋼管株式会社 熱間圧延ロ−ルの冷却装置
SU1426665A1 (ru) * 1987-07-10 1988-09-30 Всесоюзный научно-исследовательский и проектно-конструкторский институт металлургического машиностроения им.А.И.Целикова Способ охлаждени прокатных валков и проката

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Also Published As

Publication number Publication date
ES2082510T3 (es) 1996-03-16
ATE131754T1 (de) 1996-01-15
DE4134599C1 (fr) 1993-02-25
US5694799A (en) 1997-12-09
CN1072620A (zh) 1993-06-02
TW207968B (fr) 1993-06-21
CA2121341A1 (fr) 1993-04-29
CA2121341C (fr) 2004-04-27
KR100187334B1 (ko) 1999-04-01
EP0608286B1 (fr) 1995-12-20
WO1993007974A1 (fr) 1993-04-29
CN1039102C (zh) 1998-07-15
MX9205952A (es) 1993-06-01

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