EP0461743B2 - Warmwalzanlage - Google Patents
Warmwalzanlage Download PDFInfo
- Publication number
- EP0461743B2 EP0461743B2 EP19910301592 EP91301592A EP0461743B2 EP 0461743 B2 EP0461743 B2 EP 0461743B2 EP 19910301592 EP19910301592 EP 19910301592 EP 91301592 A EP91301592 A EP 91301592A EP 0461743 B2 EP0461743 B2 EP 0461743B2
- Authority
- EP
- European Patent Office
- Prior art keywords
- roughing mill
- installation
- slab
- mill
- roughing
- 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
- 238000009434 installation Methods 0.000 title claims description 24
- 238000004513 sizing Methods 0.000 claims description 14
- 239000002184 metal Substances 0.000 claims description 12
- 238000011144 upstream manufacturing Methods 0.000 claims description 11
- 238000005096 rolling process Methods 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 description 7
- 210000000988 bone and bone Anatomy 0.000 description 3
- 238000005266 casting Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 238000009749 continuous casting Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
-
- 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
- B21B1/34—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 hot-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
- B21B1/02—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 heavy work, e.g. ingots, slabs, blooms, or billets, in which the cross-sectional form is unimportant ; Rolling combined with forging or pressing
-
- 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
- B21B1/02—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 heavy work, e.g. ingots, slabs, blooms, or billets, in which the cross-sectional form is unimportant ; Rolling combined with forging or pressing
- B21B1/024—Forging or pressing
-
- 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
- B21B2015/0057—Coiling the rolled product
Definitions
- the present invention relates to a hot roughing mill installation.
- Known hot roughing mill installations are described for example in the JP-A-53-26759 or the JP-B-61-3561.
- the former is directed to a large-scale production facility according to the pre-characterising part of Claim 1 having a sizing press for achieving higher production efficiency and the latter to a medium-scale production facility having a coil box, i.e. a coiling device, for winding up the roughed metal strip to reduce the length of the roughing mill line.
- a coil box i.e. a coiling device
- the installation described in the former publication has a very long roughing mill line, whilst the latter installation does not achieve good production efficiency.
- the object of the present invention is therefore, amongst other things, to provide an installation with a short roughing mill line and which operates at a high production efficiency.
- a hot roughing mill installation which, in use, receives from a furnace a slab of hot metal which passes through the installation in a working direction, comprises a first roughing mill and a sizing press upstream of the roughing mill and is characterised in that the first roughing mill is a reversing roughing mill, that a coil box is provided downstream of the roughing mill which, in use, receives and coils a metal strip from the roughing mill, that edgers are provided upstream and downstream of the first roughing mill, which edgers, in use, form a thickened portion on each side of the slab and that a two-high rolling mill is located between the sizing press and the roughing mill.
- the sizing press drafts the slab to a desired width before it passes through the roughing mill.
- the thickened portion or "dog bone” on each side of the slab ensures that portions of reduced thickness, or "edge drops” are not created during roughing in the roughing mill.
- the two-high rolling mill is included in the installation in order to flatten the thickened portions produced by the sizing press or edgers, should these portions be too pronounced.
- a second reversing roughing mill may be included in the installation, downstream of the first.
- further edgers may be incorporated immediately upstream and/or immediately downstream of the second roughing mill.
- the drawing shows a first embodiment of the present invention in which reference numeral 1 represents a furnace for heating a slab S; and 2, a sizing press for drafting, or reducing the width of, the slab S when it has been taken out from the furnace 1.
- Numeral 3 represents edgers upstream and downstream of the roughing mill 4 for forming a "dog bone", or thickened portion, on each side of the slab S. Because edgers are situated upstream and downstream of the roughing mill, the sides of the metal strip P can be drafted by the edger 3 immediately prior to entering the roughing mill 4, regardless of the actual direction of travel of the strip P at that time.
- a two-high rolling mill 6 is arranged between the sizing press 2 and the upstream edger 3 so that, even if the thickened portions generated on each side of the slab S or metal strip P when it is drafted by the sizing press 2 or by the edger 3 are too big, they can be crushed by the two-high rolling mill 6.
- Downstream of the roughing mill 4 is a coiling device, 5, specifically a coil box for winding up the roughed strip P.
- the two-high rolling mill 6, sizing press 2, upstream edger 3, roughing mill 4, downstream edger 3 and coil box 5 are arranged on the exit side of the furnace 1 in that order in the direction D of travel of the slab.
- the direction D is the working direction in which the slab moves; that is to say it is the direction in which the slab progresses through the installation, although it may in fact also have a reciprocating motion, and the direction of travel at any instant may not be the same as the working direction D.
- a mill (not shown) for finishing the metal strip P is arranged downstream of the coil box 5 with respect to the direction of travel D.
- the slab S is heated in the furnace 1 to a predetermined temperature and is then taken out of the furnace 1 and drafted to a predetermined width in the sizing press 2. Then, the slab S is reverse rolled several times in the reversing roughing mill 4 and is thereby formed into a metal strip P with the desired thickness.
- the strip P is then wound up into a coil in the coil box 5.
- the metal strip P is thereafter uncoiled to be sent to the finishing mill (not shown) for finishing.
- edge drops, or portions of reduced thickness, on each side of the slab S can be created during the reverse rolling process in the roughing mill 4. This is prevented, in an installation according to the invention, by initially drafting the slab S in the edger 3 to generate dog bones, or portions of increased thickness, on the sides of the slab. Accordingly, no edge drops may be observed on the metal strip P after roughing in an installation according to the present invention.
- the sizing press 2 is used to width-draft the slab S so that the amount of width drafting of the slab S which may be carried out can be increased in comparison with an installation not including a sizing press. Therefore, the range of widths of slab which may be cast by a continuous casting machine upstream of the installation and fed to the furnace 1 may be large. The number of different types of slab which the casting machine must produce is accordingly lowered, and as a result, the frequency with which the moulds on the casting machine must be changed is also reduced, resulting in an enhancement of the production efficiency.
- the length of the production line from the roughing mill 4 to the finishing mill can be shortened, which leads to the installation being smaller than if the coil box were not included.
Claims (4)
- Warmwalzanlage, die im Betrieb aus einem Ofen (1) eine Bramme (S) heißen Metalls empfängt, welche die Anlage in einer Arbeitsrichtung (D) durchläuft wobei die Anlage ein erstes Warmwalzgerüst (4) und eine dem Warmwalzgerüst (4) vorgeschaltete Kalibrierpresse (2) umfaßt, dadurch gekennzeichnet, daß das erste Warmwalzgerüst ein Reversier-Warmwalzgerüst ist, daß dem Warmwalzgerüst (4) ein Coilkasten (5) nachgeschaltet ist, der im Betrieb einen Metallstreifen (P) aus dem Warmwalzgerüst (4) aufnimmt und aufwickelt, und weiter gekennzeichnet durch dem Warmwalzgerüst (4) vor- und nachgeschaltete Stauchgerüste (3), welche im Betrieb einen verdickten Abschnitt auf jeder Seite der Bramme formen, und daß ein Duo-Walzgerüst (6) zwischen der Kalibrierpresse (2) und dem Warmwalzgerüst (4) angeordnet ist.
- Anlage nach Anspruch 1, gekennzeichnet durch ein zweites, dem ersten Warmwalzgerüst (4) nachgeschaltetes Warmwalzgerüst (4).
- Anlage nach Anspruch 2, gekennzeichnet durch ein dem zweiten Vorwwalzgerüst (4) unmittelbar vorgeschaltetes Stauchgerüst. (3).
- Anlage nach Anspruch 3, gekennzeichnet durch ein weiteres, dem zweiten Warmwalzgerüst (4) unmittelbar nachgeschaltetes, Stauchgerüst (3).
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP152233/90 | 1990-06-11 | ||
JP15223390A JPH0446602A (ja) | 1990-06-11 | 1990-06-11 | 熱間粗圧延設備 |
JP15223390 | 1990-06-11 |
Publications (4)
Publication Number | Publication Date |
---|---|
EP0461743A2 EP0461743A2 (de) | 1991-12-18 |
EP0461743A3 EP0461743A3 (en) | 1992-03-11 |
EP0461743B1 EP0461743B1 (de) | 1995-01-11 |
EP0461743B2 true EP0461743B2 (de) | 1999-08-04 |
Family
ID=15535999
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19910301592 Expired - Lifetime EP0461743B2 (de) | 1990-06-11 | 1991-02-27 | Warmwalzanlage |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0461743B2 (de) |
JP (1) | JPH0446602A (de) |
DE (1) | DE69106596T3 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TW340067B (en) | 1996-11-13 | 1998-09-11 | Ishikawajima Harima Heavy Ind | Rolled strip joining device and a hot strip mill having such a device |
KR100490347B1 (ko) * | 1996-11-13 | 2005-10-19 | 수미도모 메탈 인더스트리즈, 리미티드 | 압연재 접합장치와 이를 구비한 연속 열간 압연장치 |
GB9803409D0 (en) * | 1998-02-19 | 1998-04-15 | Kvaerner Metals Davy Ltd | Method and apparatus for the manufacture of light gauge steel strip |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3358358A (en) * | 1964-12-31 | 1967-12-19 | United States Steel Corp | Method of reducing width of metal slabs |
GB1373375A (en) * | 1971-11-15 | 1974-11-13 | Canada Steel Co | Method for rolling hot metal workpieces |
JPS591401B2 (ja) * | 1976-04-26 | 1984-01-12 | 東洋インキ製造株式会社 | 紫外線硬化性組成物 |
US4675974A (en) * | 1985-10-17 | 1987-06-30 | Tippins Machinery Co., Inc. | Method of continuous casting and rolling strip |
JPS63309306A (ja) * | 1987-06-11 | 1988-12-16 | Hitachi Ltd | 連続鋳造鋳片の圧延設備及び圧延方法 |
EP0327855B1 (de) * | 1988-02-10 | 1992-04-22 | Sms Schloemann-Siemag Aktiengesellschaft | Anlage zum Walzen von Metallband unmittelbar hinter der Stranggiessanlage |
JP2593534B2 (ja) * | 1988-11-11 | 1997-03-26 | 株式会社日立製作所 | 熱間圧延設備 |
-
1990
- 1990-06-11 JP JP15223390A patent/JPH0446602A/ja active Pending
-
1991
- 1991-02-27 DE DE1991606596 patent/DE69106596T3/de not_active Expired - Lifetime
- 1991-02-27 EP EP19910301592 patent/EP0461743B2/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPH0446602A (ja) | 1992-02-17 |
EP0461743A3 (en) | 1992-03-11 |
DE69106596T2 (de) | 1995-05-18 |
EP0461743B1 (de) | 1995-01-11 |
EP0461743A2 (de) | 1991-12-18 |
DE69106596D1 (de) | 1995-02-23 |
DE69106596T3 (de) | 1999-12-23 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0415987B1 (de) | Verfahren zur kontinuierlichen herstellung von bandstahl oder stahlblech aus nach dem bogenstranggiessverfahren hergestellten flachprodukten | |
US5307864A (en) | Method and system for continuously producing flat steel product by the continuous casting method | |
US7478664B2 (en) | Method and continuous casting and rolling plant for semi-endless or endless rolling by casting a metal strand, especially a steel strand, which is cut to length as required after solidification | |
JP3152241B2 (ja) | 熱間薄板製造設備及び製造方法 | |
SK285199B6 (sk) | Spôsob výroby oceľového pásu a zariadenie na vykonávanie tohto spôsobu | |
DE69606137T3 (de) | Verfahren und Anlage zum Walzen von Bänder und Blechen | |
BG60451B1 (bg) | Метод и инсталация за получаване на кангали от стоманена лента | |
RU98103651A (ru) | Высокоскоростная установка для изготовления тонких слитков | |
RU2003106118A (ru) | Способ изготовления тонких плоских изделий и установка для его осуществления | |
RU2106212C1 (ru) | Способ изготовления горячекатаной стальной полосы и установка для его осуществления | |
KR890005115B1 (ko) | 반전 판압연기의 생산성을 향상하는 방법 | |
US5430930A (en) | Method of manufacturing hot strip | |
RU2036030C1 (ru) | Способ изготовления стальной ленты или листов и установка для его осуществления | |
JPS6349302A (ja) | 形鋼の製造方法 | |
EP0461743B2 (de) | Warmwalzanlage | |
US4848127A (en) | Method of reducing slab in widthwise direction | |
EP0665296A1 (de) | Verfahren und Anlage zum Herstellen warmgewalzter Stahlbänder | |
NZ196105A (en) | Method for modernising a hot strip mill | |
US5689991A (en) | Process and device for producing hot-rolled steel strip | |
JP3399381B2 (ja) | 剪断機を有する熱間圧延設備 | |
JPS62275507A (ja) | アルミ箔用母材の製造装置 | |
GB2030491A (en) | Process for rolling plates, and plate mill therefor | |
JPS5816707A (ja) | 鋼帯の製造方法 | |
JPS57121809A (en) | Production of steel material by direct rolling | |
RU2254183C2 (ru) | Прокатный стан для производства тонкой горячекатаной полосы |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): DE FR GB IT |
|
PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): DE FR GB IT |
|
17P | Request for examination filed |
Effective date: 19920824 |
|
17Q | First examination report despatched |
Effective date: 19930317 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): DE FR GB IT |
|
REF | Corresponds to: |
Ref document number: 69106596 Country of ref document: DE Date of ref document: 19950223 |
|
ITF | It: translation for a ep patent filed |
Owner name: MODIANO & ASSOCIATI S.R.L. |
|
ET | Fr: translation filed | ||
PLBI | Opposition filed |
Free format text: ORIGINAL CODE: 0009260 |
|
26 | Opposition filed |
Opponent name: SMS SCHLOEMANN-SIEMAG AG Effective date: 19951010 |
|
PLBF | Reply of patent proprietor to notice(s) of opposition |
Free format text: ORIGINAL CODE: EPIDOS OBSO |
|
PLBF | Reply of patent proprietor to notice(s) of opposition |
Free format text: ORIGINAL CODE: EPIDOS OBSO |
|
PLAW | Interlocutory decision in opposition |
Free format text: ORIGINAL CODE: EPIDOS IDOP |
|
PLAW | Interlocutory decision in opposition |
Free format text: ORIGINAL CODE: EPIDOS IDOP |
|
PUAH | Patent maintained in amended form |
Free format text: ORIGINAL CODE: 0009272 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: PATENT MAINTAINED AS AMENDED |
|
27A | Patent maintained in amended form |
Effective date: 19990804 |
|
AK | Designated contracting states |
Kind code of ref document: B2 Designated state(s): DE FR GB IT |
|
ITF | It: translation for a ep patent filed |
Owner name: MODIANO & ASSOCIATI S.R.L. |
|
ET3 | Fr: translation filed ** decision concerning opposition | ||
REG | Reference to a national code |
Ref country code: GB Ref legal event code: IF02 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20100223 Year of fee payment: 20 Ref country code: IT Payment date: 20100220 Year of fee payment: 20 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20100312 Year of fee payment: 20 Ref country code: GB Payment date: 20100224 Year of fee payment: 20 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R071 Ref document number: 69106596 Country of ref document: DE |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: PE20 Expiry date: 20110226 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION Effective date: 20110226 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION Effective date: 20110227 |