CN1076639C - Method and equipment for hot rolling strip steel - Google Patents
Method and equipment for hot rolling strip steel Download PDFInfo
- Publication number
- CN1076639C CN1076639C CN96118963A CN96118963A CN1076639C CN 1076639 C CN1076639 C CN 1076639C CN 96118963 A CN96118963 A CN 96118963A CN 96118963 A CN96118963 A CN 96118963A CN 1076639 C CN1076639 C CN 1076639C
- Authority
- CN
- China
- Prior art keywords
- strip steel
- rolling
- length
- rolling strip
- 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 - Fee Related
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 61
- 239000010959 steel Substances 0.000 title claims abstract description 61
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000005098 hot rolling Methods 0.000 title abstract 2
- 238000005096 rolling process Methods 0.000 claims abstract description 88
- 230000002441 reversible effect Effects 0.000 claims abstract description 4
- 238000004904 shortening Methods 0.000 claims description 6
- 238000006386 neutralization reaction Methods 0.000 claims description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000002950 deficient Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture 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
- 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
- B21B1/22—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
- B21B1/24—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 continuous or semi-continuous process
- B21B1/26—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 continuous or semi-continuous process by hot-rolling, e.g. Steckel hot mill
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B39/02—Feeding or supporting work; Braking or tensioning arrangements, e.g. threading arrangements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/48—Tension control; Compression control
- B21B37/52—Tension control; Compression control by drive motor control
Abstract
The invention provides a method and equipment for hot rolling strip steel, wherein rolling piece is rolled into roughing rolling strip steel in at least one reversible roughing mill frame, and then the rude rolling strip steel is transported to at least one Stickel finishing mill frame and then is rolled into finishing rolling strip steel having predetermined thickness, and at last, the strip steel is rolled into rolled coil. The invention reduces length of central table roller determined by the length of roughing rolling strip steel, and executes series rolling in roughing mill frame at least last (n-1) roughing rolling table sequence of roughing rolling strip steel. In an equipment having corresponding structure, the length is at most equal to the same of the roughing rolling strip steel before one table of last (n-x) roughing rolling tables.
Description
The present invention relates to a kind of hot strip rolling method and a kind of hot strip rolling equipment, wherein rolled piece is rolled into rough rolling strip steel through some roughing passages at least one stand reversible pony roughing mill, rough rolling strip steel is sent at least one steckel finishing stand place and is become the rough rolling strip steel of predetermined thickness through some passages by finish rolling therein through delay table, at last fine-rolling strip steel is rolled into the roll coil of strip.
In the prior art commonly, in a kind of method or a kind of equipment of for this reason attaching troops to a unit, roller-way length between pony roughing mill and the steckel finishing stand is to determine like this, and it can make the rough rolling strip steel " freedom " that comes out from pony roughing mill divide between pony roughing mill and crop shears.Therefore, roller-way length is mainly determined by rough rolling strip steel length.
Produce such shortcoming thus, the predetermined batch weight that is not rough rolling strip steel length and product is restricted, be exactly that equipment needs bigger place, such problem further appears thus, rough rolling strip steel through the longer transit route between pony roughing mill and the steckel finishing stand after owing to carry heat in the distance to scatter and disappear and enter in the steckel finishing stand with lower rough rolling strip steel temperature long.Therefore, the increase of machine utilization has a negative impact to finish rolling in the finishing stand, also obtains less reduction per pass simultaneously.
Task of the present invention is to provide a kind of hot strip rolling method, wherein rolled piece is rolled into rough rolling strip steel through some roughing passages at least one stand reversible pony roughing mill, rough rolling strip steel is sent at least one the steckel finishing stand and is become the rough rolling strip steel of predetermined thickness through multi-pass by finish rolling therein through delay table, will be with coil of strip to become the roll coil of strip at last; A kind of hot strip rolling equipment that is used for implementing said method specially also is provided, it comprises that reversing rougher frame that at least one roughing go out rough rolling strip steel becomes the steckel finishing stand of fine-rolling strip steel with at least one with the rough rolling strip steel attenuate, and wherein pony roughing mill links to each other with the delay table that finishing stand is determined by rough rolling strip steel length by its length.This method and apparatus has been avoided above-mentioned defective, and can in use implement uncomplicated measure and means.
In order to solve above task, the scheme that among the present invention the method for the above-mentioned type is proposed is, the delay table length that shortening is limited by rough rolling strip steel length, and in roughing " n-1 " passage of the roughing of rough rolling strip steel, tandem is rolling not only carried out in the pony roughing mill neutralization but also in the finishing stand composition, wherein the number of the rolling pass in " n " expression pony roughing mill.
So the possibility of roller-way advantageously occurred shortening according to the present invention, this is because rough rolling strip steel no longer need freely be exported after one after certain road in the last several roads of roughing or in roughing at last, the substitute is, rough rolling strip steel begins to carry out the tandem be made up of pony roughing mill and finishing stand under the synchronous situation of mill speed rolling.
Except shortening roller-way and shortening the straight length (consequently less investment and production cost) of total equipment thus, the rough rolling strip steel temperature that raises also appears when rough rolling strip steel is imported the steckel finishing stand.This produces favorable influence to finish rolling, and for example less load and bigger drafts can occur in finishing stand.
A kind of hot strip rolling equipment that is used for implementing the inventive method, it comprises at least one the reversing rougher frame and at least one steckel finishing stand that the rough rolling strip steel attenuate is become fine-rolling strip steel that rough rolling strip steel are carried out roughing, wherein pony roughing mill links to each other with the roller-way that finishing stand is determined by rough rolling strip steel length by its length, be characterized in that delay table length equals roughing " n-2 " passage rough rolling strip steel length before at most, wherein the number of the rolling pass in " n " expression pony roughing mill.
In addition, roller-way length approximates the distance between the crop shears of pony roughing mill greatly.
Other details of the present invention, technical characterictic and advantage will appear among the description of the embodiment that signal among the figure is drawn.
Shown in the figure be:
Fig. 1 is the legacy equipment that a cover occurs in the technological process mode,
Fig. 2 be one the cover with the technological process mode occur according to equipment of the present invention.
The hot strip rolling equipment of arranging corresponding to prior art shown in Figure 1 comprises that at least one roughing goes out the reversing rougher frame (1) and at least one steckel finishing stand (3) that rough rolling strip steel (10) attenuate is become fine-rolling strip steel of rough rolling strip steel (10).Two equipment section (pony roughing mill (1) and finishing stand (3)) link to each other by a delay table (2).As shown in Figure 1, in legacy equipment, the length of delay table (2) is so definite, it can make from the rough rolling strip steel (10) (wherein, pony roughing mill (1) is meant the last pony roughing mill in one group of pony roughing mill) of pony roughing mill (1) output and freely divide between pony roughing mill (1) and crop shears (4).So this situation occurs, delay table (2) length is mainly determined by rough rolling strip steel length.Up to the present, utilize the still unexposed steckel mill train that is used for of solution of intermediate store (volume case), in hot strip steel-tandem mill, often use intermediate store, and owing to had intermediate store just can shorten distance between pony roughing mill and the finishing stand.As shown in the figure, rough rolling strip steel have with pony roughing mill (1) and crop shears (4) between the identical length (L1) of distance, and be significantly shorter than distance value (A1) between pony roughing mill (1) and the finishing stand (3).As known, finishing stand (3) has volume stove (5,6).
Fig. 2 has drawn according to the embodiment of equipment of the present invention.At this, the longest roughing n-2 passage rough rolling strip steel (10) length (L2) before that equals of the length (A2) of delay table (2), wherein n is the number of the passage in the pony roughing mill.
Below will further describe the present invention according to embodiment.
Embodiment:
Setup parameter
-volume is heavy: 18 kg/mm
-rough rolling strip steel thickness: 25 mm
-rough rolling strip steel length: 94.74 m
In the equipment that tradition is built up, the distance between pony roughing mill (1) and the finishing stand (3) adds up to about 120m, and wherein the road number of times in the pony roughing mill (1) is n.In addition, rough rolling strip steel (10) linearly and is freely carried (Fig. 1) on the roller-way between pony roughing mill (1) and the crop shears (4).According to the present invention also as shown in Figure 2, when roller-way being shortened to length (A2) according to the rough rolling strip steel length in the n-2 passage, it is rolling to begin to carry out the tandem be made up of pony roughing mill (1) and finishing stand (3), this be since the length (L2) of rough rolling strip steel (10) greater than the cause of the distance (A2) between pony roughing mill (1) and the finishing stand (3).-volume is heavy: 18 kg/mm-rough rolling strip steel thickness (n-2) 25mm * 1/0.75 * 1/0.75=44.44mm (have get reduction per pass in the last twice of roughing be 25%)-rough rolling strip steel length (n-2) 53.29m
Therefore, the length of required delay table (2) can shorten 94.74m-53.29m=41.45m.
Except shortening delay table, the advantage that also has is exactly that the rough rolling strip steel temperature has raise and as described above finish rolling produced favourable influence.When tandem is rolling, make the mill speed of pony roughing mill (1) and finishing stand (3) synchronous in addition according to method of the present invention.
Can also formulate such measure to producing at this: when tandem was rolling, the transfer rate of delay table and direction of transfer were identical with the mill speed and the rolling direction of pony roughing mill (1) and finishing stand (3).
Claims (3)
1. hot strip rolling method, wherein rolled piece is rolled into rough rolling strip steel (10) through some roughing passages at least one stand reversible pony roughing mill (1), rough rolling strip steel is sent at least one the steckel finishing stand (3) through delay table (2), and become the fine-rolling strip steel of predetermined thickness therein by finish rolling through multi-pass, be rolled into the roll coil of strip at last, it is characterized in that, shortening is by definite delay table (2) length of rough rolling strip steel (10) length (L), and in roughing " n-1 " passage of rough rolling strip steel (10), tandem is rolling not only in pony roughing mill (1) neutralization but also carry out in finishing stand (3), wherein the number of the rolling pass in " n " the expression pony roughing mill (1).
2. hot strip rolling equipment, be used in particular for implementing the equipment of said method, comprise that at least one roughing goes out the reversing rougher frame (1) and at least one steckel finishing stand (3) that rough rolling strip steel (10) attenuate is become fine-rolling strip steel of rough rolling strip steel (10), wherein pony roughing mill (1) is linked to each other by the definite delay table (2) of rough rolling strip steel (10) length (L1) by its length with finishing stand (3), it is characterized in that, maximum and the equal in length of rough rolling strip steel (10) before roughing " n-2 " passage of the length of this delay table (2), the wherein number of the rolling pass in " n " the expression pony roughing mill (1).
3. equipment as claimed in claim 2 is characterized in that, the length of this delay table (2) approximates the distance between pony roughing mill (1) and the crop shears (4).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19549208.0 | 1995-12-30 | ||
| DE19549208A DE19549208A1 (en) | 1995-12-30 | 1995-12-30 | Process and plant for hot rolling strips |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1154276A CN1154276A (en) | 1997-07-16 |
| CN1076639C true CN1076639C (en) | 2001-12-26 |
Family
ID=7781684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN96118963A Expired - Fee Related CN1076639C (en) | 1995-12-30 | 1996-12-30 | Method and equipment for hot rolling strip steel |
Country Status (7)
| Country | Link |
|---|---|
| US (2) | US20030051525A1 (en) |
| EP (1) | EP0781609A1 (en) |
| KR (1) | KR970033127A (en) |
| CN (1) | CN1076639C (en) |
| CA (1) | CA2192887A1 (en) |
| DE (1) | DE19549208A1 (en) |
| TW (1) | TW391896B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6182490B1 (en) * | 1999-03-19 | 2001-02-06 | Danieli Technology Inc. | Super thin strip hot rolling |
| DE10349950A1 (en) | 2003-10-24 | 2005-05-25 | Sms Demag Ag | Rolling mill for warm rolling of metals, including a hot strip roll chain, and blooming and finishing roll chains useful in rolling Al |
| FR2888763B1 (en) * | 2005-07-22 | 2008-10-03 | Vai Clecim Sa | INSPECTION METHOD AND ASSOCIATED INSTALLATION |
| JP5271512B2 (en) * | 2007-06-18 | 2013-08-21 | Ｉｈｉメタルテック株式会社 | Hot rolling equipment |
| CN113020279B (en) * | 2021-02-26 | 2023-05-12 | 首钢京唐钢铁联合有限责任公司 | Uncoiling leveling control method, device and system of leveling unit |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4348882A (en) * | 1980-01-28 | 1982-09-14 | Tippins Machinery Company, Inc. | Hot rolling strip |
| US4497191A (en) * | 1982-03-05 | 1985-02-05 | Voest-Alpine Aktiengesellschaft | Plant and process for hot-rolling strip or plate stock |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2322080A (en) * | 1939-12-15 | 1943-06-15 | Gen Electric | Control for runout tables of reversing mills |
| LU34997A1 (en) * | 1956-04-23 | |||
| JPS5758903A (en) * | 1980-09-25 | 1982-04-09 | Nippon Steel Corp | Hot rolling method for hot strip |
| AT370346B (en) * | 1981-03-25 | 1983-03-25 | Voest Alpine Ag | PLANT FOR THE HOT ROLLING OF TAPE OR TABLED ROLLED GOODS |
| US4433566A (en) * | 1981-09-29 | 1984-02-28 | Tippins Machinery Company, Inc. | Close coupled reversing rougher and finishing train and method of rolling |
| US4503697A (en) * | 1983-01-25 | 1985-03-12 | Tippins Machinery Company, Inc. | Method for hot rolling slabs |
| JP3152241B2 (en) * | 1990-06-12 | 2001-04-03 | 株式会社日立製作所 | Hot thin plate manufacturing equipment and manufacturing method |
-
1995
- 1995-12-30 DE DE19549208A patent/DE19549208A1/en not_active Withdrawn
-
1996
- 1996-12-12 KR KR1019960064590A patent/KR970033127A/en not_active Application Discontinuation
- 1996-12-13 CA CA002192887A patent/CA2192887A1/en not_active Abandoned
- 1996-12-14 EP EP96120132A patent/EP0781609A1/en not_active Withdrawn
- 1996-12-19 TW TW085115671A patent/TW391896B/en not_active IP Right Cessation
- 1996-12-30 CN CN96118963A patent/CN1076639C/en not_active Expired - Fee Related
-
2002
- 2002-11-01 US US10/285,734 patent/US20030051525A1/en not_active Abandoned
-
2003
- 2003-10-30 US US10/701,415 patent/US20040089046A1/en not_active Abandoned
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4348882A (en) * | 1980-01-28 | 1982-09-14 | Tippins Machinery Company, Inc. | Hot rolling strip |
| US4497191A (en) * | 1982-03-05 | 1985-02-05 | Voest-Alpine Aktiengesellschaft | Plant and process for hot-rolling strip or plate stock |
Also Published As
| Publication number | Publication date |
|---|---|
| US20030051525A1 (en) | 2003-03-20 |
| TW391896B (en) | 2000-06-01 |
| KR970033127A (en) | 1997-07-22 |
| DE19549208A1 (en) | 1997-07-03 |
| CN1154276A (en) | 1997-07-16 |
| CA2192887A1 (en) | 1997-07-01 |
| US20040089046A1 (en) | 2004-05-13 |
| EP0781609A1 (en) | 1997-07-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1023451C (en) | Method and apparatus for manufacturing hot-rolled steel band | |
| CN210586365U (en) | Wire rod production line | |
| CN1106233C (en) | Hot strip production plant for rolling thin rolled strip | |
| KR950023454A (en) | Manufacturing method of thick plate coil, coil type thin plate or discontinuous thick plate and apparatus used therein | |
| CN110947759B (en) | Deformed steel bar rolling production line and production method thereof | |
| CN1076639C (en) | Method and equipment for hot rolling strip steel | |
| US4430874A (en) | Vertical coiler furnace and method of rolling | |
| CN1086466A (en) | The blank of continuous pouring is made the method and apparatus of hot-rolled band or section bar | |
| US4348882A (en) | Hot rolling strip | |
| US3625043A (en) | Continuous multiple core rolling mill train for producing rolled bar stock especially wire of heavy coil weights | |
| CN1137949A (en) | Hot-rolling method and arrangement | |
| CN212442552U (en) | High-yield high-precision bar cutting production line | |
| US4308739A (en) | Method for modernizing a hot strip mill | |
| EP0987064B1 (en) | Continuous rolling mill for small sections or wire | |
| CN111872114A (en) | High-yield high-precision slitting bar production method and production line | |
| US4599883A (en) | Tandem rolling mill | |
| CN203316478U (en) | High-speed wire rod compact type imporous rolling production line | |
| US5682785A (en) | Rolling mill and method for precision rolling wire or rolling stock having a round cross-section | |
| CN210023244U (en) | System for producing cold-formed steel material by continuous casting and rolling | |
| MXPA00003686A (en) | Method of wire rolling and rolling mill. | |
| US5664452A (en) | Method of rolling finished sections from a preliminary section in a reversing rolling stand arrangement | |
| US5901597A (en) | Method of operating a roll stand arrangement | |
| US4430876A (en) | Continuous tandem hot strip mill and method of rolling | |
| US5970773A (en) | Rolling plant for rolling all types of finished sections | |
| CN220717231U (en) | Board production system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |