EP0608286B1 - Warmwalzverfahren und warmwalzwerk für metallband - Google Patents
Warmwalzverfahren und warmwalzwerk für metallband Download PDFInfo
- 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
Links
- 239000002184 metal Substances 0.000 title claims abstract description 51
- 238000005098 hot rolling Methods 0.000 title claims abstract description 16
- 238000001816 cooling Methods 0.000 claims abstract description 18
- 238000005507 spraying Methods 0.000 claims abstract description 12
- 238000009835 boiling Methods 0.000 claims abstract description 5
- 230000001105 regulatory effect Effects 0.000 claims abstract description 4
- 239000000110 cooling liquid Substances 0.000 claims description 27
- 239000007921 spray Substances 0.000 claims description 23
- 238000000034 method Methods 0.000 claims description 12
- 238000005096 rolling process Methods 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 230000005855 radiation Effects 0.000 claims 1
- 239000002826 coolant Substances 0.000 abstract description 11
- 230000007547 defect Effects 0.000 abstract description 5
- 239000007788 liquid Substances 0.000 abstract 4
- 238000005299 abrasion Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000003303 reheating Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
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)
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)
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)
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 |
-
1991
- 1991-10-18 DE DE4134599A patent/DE4134599C1/de not_active Expired - Fee Related
-
1992
- 1992-10-08 WO PCT/EP1992/002314 patent/WO1993007974A1/de active IP Right Grant
- 1992-10-08 AT AT92921087T patent/ATE131754T1/de active
- 1992-10-08 US US08/211,846 patent/US5694799A/en not_active Expired - Lifetime
- 1992-10-08 CA CA002121341A patent/CA2121341C/en not_active Expired - Fee Related
- 1992-10-08 KR KR1019940701250A patent/KR100187334B1/ko not_active IP Right Cessation
- 1992-10-08 EP EP92921087A patent/EP0608286B1/de not_active Expired - Lifetime
- 1992-10-08 ES ES92921087T patent/ES2082510T3/es not_active Expired - Lifetime
- 1992-10-16 MX MX9205952A patent/MX9205952A/es not_active IP Right Cessation
- 1992-10-17 CN CN92112841A patent/CN1039102C/zh not_active Expired - Fee Related
- 1992-11-02 TW TW081108706A patent/TW207968B/zh not_active IP Right Cessation
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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