EP0461743A2 - Warmwalzanlage - Google Patents
Warmwalzanlage Download PDFInfo
- Publication number
- EP0461743A2 EP0461743A2 EP91301592A EP91301592A EP0461743A2 EP 0461743 A2 EP0461743 A2 EP 0461743A2 EP 91301592 A EP91301592 A EP 91301592A EP 91301592 A EP91301592 A EP 91301592A EP 0461743 A2 EP0461743 A2 EP 0461743A2
- 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.)
- Granted
Links
- 238000009434 installation Methods 0.000 title claims abstract description 30
- 238000004513 sizing Methods 0.000 claims abstract description 17
- 239000002184 metal Substances 0.000 claims abstract description 13
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 11
- 238000005096 rolling process Methods 0.000 claims abstract description 8
- 238000004519 manufacturing process Methods 0.000 description 8
- 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 Japanese Patent 1 st Publication No. 53-26759 or the _ Japanese Patent 2nd Publication No. 61-3561.
- the former is directed to a large-scale production facility 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.
- 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 reversing roughing mill and a sizing press upstream of the roughing mill and is characterised by a coil box downstream of the roughing mill which, in use, receives and coils a metal strip from the roughing mill.
- the sizing press drafts the slab to a desired width before it passes through the roughing mill.
- An edger is preferably included in the installation, immediately upstream of the roughing mill.
- the edger in use, forms a thickened portion or "dog bone” on each side of the slab. This ensures that portions of reduced thickness, or “edge drops” are not created during' roughing in the roughing mill.
- Another edger may be incorporated immediately downstream of the roughing mill.
- 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.
- a rolling mill which may be two-high, may be included in the installation, in order to flatten the thickened portions produced by the edger or edgers, should these portions be too pronounced.
- Figure 1 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 an edger for forming a "dog bone", or thickened portion, on each side of the slab S; and 4, a reversing mill for roughing the slab.
- Downstream of the roughing mill 4 is a coiling device, 5, specifically a coil box for winding up the roughed strip P.
- the sizing press 2, edger 3, roughing mill 4 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.
- the second, third and fourth embodiments provide good production efficiency due to the inclusion of the sizing press 2 and the reversing roughing mill or mills 4, and a short roughing mill line due to the presence of the coil box 5.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
- Winding, Rewinding, Material Storage Devices (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15223390A JPH0446602A (ja) | 1990-06-11 | 1990-06-11 | 熱間粗圧延設備 |
JP15223390 | 1990-06-11 | ||
JP152233/90 | 1990-06-11 |
Publications (4)
Publication Number | Publication Date |
---|---|
EP0461743A2 true EP0461743A2 (de) | 1991-12-18 |
EP0461743A3 EP0461743A3 (en) | 1992-03-11 |
EP0461743B1 EP0461743B1 (de) | 1995-01-11 |
EP0461743B2 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) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0842714A2 (de) * | 1996-11-13 | 1998-05-20 | Ishikawajima-Harima Heavy Industries Co., Ltd. | Vorrichtung zum Verbinden von gewalzten Blechen und damit ausgerüstete Anlage zum kontinuierlichen Walzen |
EP0937512A1 (de) * | 1998-02-19 | 1999-08-25 | Kvaerner Metals Continuous Casting Limited | Preisgünstige Vorrichtung und Verfahren zur Herstellung von dünnem Stahlband |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100490347B1 (ko) * | 1996-11-13 | 2005-10-19 | 수미도모 메탈 인더스트리즈, 리미티드 | 압연재 접합장치와 이를 구비한 연속 열간 압연장치 |
Citations (6)
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 |
US3803891A (en) * | 1971-11-15 | 1974-04-16 | Canada Steel Co | Method for rolling hot metal workpieces |
US4675974A (en) * | 1985-10-17 | 1987-06-30 | Tippins Machinery Co., Inc. | Method of continuous casting and rolling strip |
EP0294807A2 (de) * | 1987-06-11 | 1988-12-14 | Hitachi, Ltd. | Walzanlage und Walzverfahren für stranggegossenes Band |
EP0327855A2 (de) * | 1988-02-10 | 1989-08-16 | Sms Schloemann-Siemag Aktiengesellschaft | Anlage zum Walzen von Metallband unmittelbar hinter der Stranggiessanlage |
EP0368333A2 (de) * | 1988-11-11 | 1990-05-16 | Hitachi, Ltd. | Warmwalzanlage und Verfahren zum Warmwalzen einer Bramme |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
-
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
Patent Citations (6)
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 |
US3803891A (en) * | 1971-11-15 | 1974-04-16 | Canada Steel Co | Method for rolling hot metal workpieces |
US4675974A (en) * | 1985-10-17 | 1987-06-30 | Tippins Machinery Co., Inc. | Method of continuous casting and rolling strip |
EP0294807A2 (de) * | 1987-06-11 | 1988-12-14 | Hitachi, Ltd. | Walzanlage und Walzverfahren für stranggegossenes Band |
EP0327855A2 (de) * | 1988-02-10 | 1989-08-16 | Sms Schloemann-Siemag Aktiengesellschaft | Anlage zum Walzen von Metallband unmittelbar hinter der Stranggiessanlage |
EP0368333A2 (de) * | 1988-11-11 | 1990-05-16 | Hitachi, Ltd. | Warmwalzanlage und Verfahren zum Warmwalzen einer Bramme |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0842714A2 (de) * | 1996-11-13 | 1998-05-20 | Ishikawajima-Harima Heavy Industries Co., Ltd. | Vorrichtung zum Verbinden von gewalzten Blechen und damit ausgerüstete Anlage zum kontinuierlichen Walzen |
EP0842714A3 (de) * | 1996-11-13 | 1998-09-30 | Ishikawajima-Harima Heavy Industries Co., Ltd. | Vorrichtung zum Verbinden von gewalzten Blechen und damit ausgerüstete Anlage zum kontinuierlichen Walzen |
EP1160022A2 (de) * | 1996-11-13 | 2001-12-05 | Ishikawajima-Harima Heavy Industries Co., Ltd. | Kontinuierliche Warmwalzanlage |
EP1160022A3 (de) * | 1996-11-13 | 2001-12-19 | Ishikawajima-Harima Heavy Industries Co., Ltd. | Kontinuierliche Warmwalzanlage |
US6406413B2 (en) | 1996-11-13 | 2002-06-18 | Ishikawajima-Harima Heavy Industries Co., Ltd. | Rolled plate joining apparatus and continuous hot rolling apparatus equipped with the same |
EP0937512A1 (de) * | 1998-02-19 | 1999-08-25 | Kvaerner Metals Continuous Casting Limited | Preisgünstige Vorrichtung und Verfahren zur Herstellung von dünnem Stahlband |
Also Published As
Publication number | Publication date |
---|---|
JPH0446602A (ja) | 1992-02-17 |
EP0461743A3 (en) | 1992-03-11 |
DE69106596D1 (de) | 1995-02-23 |
DE69106596T3 (de) | 1999-12-23 |
EP0461743B2 (de) | 1999-08-04 |
DE69106596T2 (de) | 1995-05-18 |
EP0461743B1 (de) | 1995-01-11 |
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