EP0608286B1 - Warmwalzverfahren und warmwalzwerk für metallband - Google Patents

Warmwalzverfahren und warmwalzwerk für metallband Download PDF

Info

Publication number
EP0608286B1
EP0608286B1 EP92921087A EP92921087A EP0608286B1 EP 0608286 B1 EP0608286 B1 EP 0608286B1 EP 92921087 A EP92921087 A EP 92921087A EP 92921087 A EP92921087 A EP 92921087A EP 0608286 B1 EP0608286 B1 EP 0608286B1
Authority
EP
European Patent Office
Prior art keywords
metal strip
cooling liquid
roll
roll gap
work rolls
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.)
Expired - Lifetime
Application number
EP92921087A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0608286A1 (de
Inventor
Waldemar Wolpert
Friedrich Heymann
Manfred MÖHLENKAMP
Günter 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/de
Application granted granted Critical
Publication of EP0608286B1 publication Critical patent/EP0608286B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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

  • a method for hot rolling metal strip in one or more passes is disclosed to the person skilled in the art in SU-A 1 227 275, it being on the inlet side and on the outlet side of the roll stand (s) together with their work rolls by spraying a cooling liquid in one cooling area extending over the entire width of the metal strip.
  • the spraying of a cooling liquid on the feed side takes place in such a way that the roller surfaces are cooled to a temperature below the boiling point of the cooling liquid immediately before the roll gap.
  • three differently arranged spray zones and thus cooling zones are provided on the inlet side of the roll strip into the roll gap on each work roll, all of which are separate from one another and each of these spray zones has to perform a specific function in itself.
  • the invention has for its object to provide a hot rolling process 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 abrasion) occurring on the surfaces of the work rolls.
  • the invention is based on a process for hot rolling metal strip in one or more passes according to SU-A 1 227 275, which is the type of process.
  • the solution according to the invention consists in that the spraying of the cooling liquid on the inlet side takes place in such a way that it is carried out exclusively by a series of flat jet nozzles, the core jets of which first strike the jacket of the work rolls or in the roll gap for direct cooling and that at the same time that incoming metal strip is acted upon by the radiant heat of the metal strip with the same cooling liquid to protect the roller shells, the spraying of the cooling liquid being regulated so that the metal strip is only cooled in a very thin outer zone.
  • 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, across the entire width of the metal strip to be rolled, assigned spray nozzles for a cooling liquid.
  • the solution according to the invention consists in that only one row of nozzles consisting of flat jet nozzles is arranged on the inlet side above and below the incoming metal strip, the spray nozzles of each row of nozzles with their core jets being primarily directed towards the jackets of the work rolls or all into the roll gap.
  • the cooling of work rolls in hot rolling mills is optimally used to keep the jackets of the work rolls at a temperature which is not critical for a deformation of the jackets.
  • coolant is not only applied specifically 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.
  • 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.
  • Such a coolant should be used, with which the surface temperature of the work rolls below a temperature of 90 ° C to 110 ° C is held.
  • 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 great 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 on the metal strip surfaces or can be avoided.
  • 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 inlet-side spray nozzles 6, 7 are designed as flat jet nozzles, the spray cones of which overlap in the edge regions with an angle ⁇ such that this alone results in a uniform Cooling across the width of the metal strip 5 is 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 strike the jacket of the work roll 2 at an angle and here in the direction of Volume 5 are distracted.
  • This second setting of the core jets 11 is preferred because this leads to greater turbulence of the cooling liquid and the area covered by the spray cone with an opening angle ⁇ on the metal strip 5 has a smaller width a than the width a 'of the spray cone with the exactly in the roll gap directed core jets 10.
  • this second setting causes in particular a uniform cooling of the metal strip in the areas with the width a and a '.
  • the shells of the work rolls 1, 2 are assigned temperature sensors 12, 13. With them, the surface temperature of the jackets can be determined in order to adjust the temperature and volume of the coolant to be sprayed on 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)
EP92921087A 1991-10-18 1992-10-08 Warmwalzverfahren und warmwalzwerk für metallband Expired - Lifetime EP0608286B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4134599A DE4134599C1 (nl) 1991-10-18 1991-10-18
DE4134599 1991-10-18
PCT/EP1992/002314 WO1993007974A1 (de) 1991-10-18 1992-10-08 Warmwalzverfahren und warmwalzwerk für metallband

Publications (2)

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

Family

ID=6443009

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92921087A Expired - Lifetime EP0608286B1 (de) 1991-10-18 1992-10-08 Warmwalzverfahren und warmwalzwerk für metallband

Country Status (11)

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

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
US8464565B2 (en) * 2003-12-24 2013-06-18 Nippon Steel & Sumitomo Metal Corporation System for supplying lubricant, apparatus for manufacturing seamless pipes or tubes, and method of manufacturing seamless pipes or tubes
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 (en) * 2007-06-04 2009-01-14 ArcelorMittal France Rolling mill with cooling device and rolling process
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 (en) * 2015-12-30 2017-07-06 Arcelormittal Process and device for cooling a metal substrate
WO2017188179A1 (ja) * 2016-04-28 2017-11-02 新日鐵住金株式会社 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

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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 (nl) * 1964-12-08 1969-04-08 Asea Ab
JPS499031B1 (nl) * 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

Also Published As

Publication number Publication date
MX9205952A (es) 1993-06-01
WO1993007974A1 (de) 1993-04-29
KR100187334B1 (ko) 1999-04-01
ES2082510T3 (es) 1996-03-16
CN1039102C (zh) 1998-07-15
TW207968B (nl) 1993-06-21
CN1072620A (zh) 1993-06-02
CA2121341A1 (en) 1993-04-29
ATE131754T1 (de) 1996-01-15
EP0608286A1 (de) 1994-08-03
CA2121341C (en) 2004-04-27
DE4134599C1 (nl) 1993-02-25
US5694799A (en) 1997-12-09

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