CN101298081A - Single stand four-roller steckel mill cross-connection control rolling technique - Google Patents
Single stand four-roller steckel mill cross-connection control rolling technique Download PDFInfo
- Publication number
- CN101298081A CN101298081A CNA2008101240149A CN200810124014A CN101298081A CN 101298081 A CN101298081 A CN 101298081A CN A2008101240149 A CNA2008101240149 A CN A2008101240149A CN 200810124014 A CN200810124014 A CN 200810124014A CN 101298081 A CN101298081 A CN 101298081A
- Authority
- CN
- China
- Prior art keywords
- rolling
- milling train
- carry out
- temperature
- rolled
- 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.)
- Pending
Links
Images
Landscapes
- Metal Rolling (AREA)
Abstract
The invention relates to a controlled rolling technique for steckel mills, in particular to a cross controlled rolling technique for a reversible steckel mill with single frame and four rolls; after tapping, a first blank enters a rolling mill to be rolled in a recrystallization zone and then is sent to a cooling zone behind the rolling mill for waiting the temperature to drop; a second blank, after tapping, enters the rolling mill to be rolled in the recrystallization zone and then is sent to a cooling zone in front of the rolling mill for waiting the temperature to drop; after the temperature is reduced to a certain preset temperature, the first blank is returned to the rolling mill and rolled in a non-recrystallization zone and then sent to a place behind the mill for processing in a sequent working procedure; after the temperature is reduced to a certain preset temperature, the second blank enters the rolling mill, is rolled in a non-recrystallization zone and then sent to a place behind the mill for processing in a sequent working procedure. The rolling technique of the invention can flexibly select different production modes according to the length of the rolling and the temperature waiting time, increase the utilization rate of the rolling mills, reduce production cost and overcome difficulty in realizing a grade-crossing controlled rolling technique or a space-crossing rolling technique due in small space.
Description
Technical field
The present invention relates to a kind of steekle mill controlled rolling technology, specifically single stand four-roller steckel mill cross-connection control rolling technique.
Background technology
At present, each Heavy Plate Production factory all makes full use of the time to be rolled of steel plate in order to realize steekle mill intersection controlled rolling technology in the world, and existing steekle mill intersection controlled rolling technology generally has following several:
(1) builds the side roller-way in the milling train back, intermediate blank to be rolled is placed on the side roller-way, do not influence the production of main rolling line when treating temperature.This steekle mill intersects the shortcoming that controlled rolling technology exists and is: steel billet needs laterally draw intermediate blank with the steel-drawing machine structure from main rolling line to the side roller-way with from the side roller-way to main rolling line, not only the time long, and investment is greatly.
(2) build annular roller-way at the milling train fore side, intermediate blank to be rolled is placed on the annular roller-way, annular roller-way is a constant speed.The shortcoming that this steekle mill intersection controlled rolling technology exists is: only could take a round on annular roller-way to certain thickness intermediate blank, cause finishing temperature low excessively easily.If annular roller-way is made adjustable speed, will be with annular roller-way lengthening, total investment is bigger.
(3) steekle mill of adopting the dolly mode intersects controlled rolling technology, one group of roller-way before the milling train machine or behind the machine is made two to be put and parallel mobile dolly side by side, when production will intersect the steel plate of controlled rolling, translation dolly rolling line roller-way of deciding, another is used to put treats warm intermediate blank, so is used alternatingly.The domestic factory that has adopts the steekle mill intersection controlled rolling technology of this kind translation dolly, but because dolly is laterally moving, its supply line also must move together, and difficult wiring and fault rate are higher, trolley translation roller condition of work is also very poor, perishable simultaneously, and equipment failure rate is high.
(4) space crossed rolling mode, promptly in the milling train front or the back elevating mechanism is installed, available elevating mechanism will treat that warm intermediate blank lifts temperature control, other steel plates from this mechanism below by, after being cooled to design temperature, blank is put down being rolled again.The shortcoming that this steekle mill intersection controlled rolling technology exists is: needs elevating mechanism is installed, needs additional investment, and also comparatively complicated in the control.
(5) roll the recrystallization zone rolling pass of two to three blocks of steel earlier, roll after good intermediate blank is put in the milling train machine, and then before two to three blocks of steel billets are delivered to the milling train machine, roll non-recrystallization district rolling pass, roll and send control cold place cooling after good since first block of steel billet; The back blank is also so rolling.This intersects has bigger space to be used to put intermediate blank before and after controlled rolling technological requirement milling train, and the producer that has spatially distance is not enough, and distance is shorter between roughing mill and the finishing mill, can't intersect controlled rolling in this way.
Produce cut deal for the steekle mill that adopts single chassis, still do not adopt two bases or many bases rolling at present.
Summary of the invention
The objective of the invention is to propose a kind of compact conformation, easy and simple to handle, can select the different modes of production flexibly for use with time of staying temperature according to length of rolled piece, improve the single stand four-roller steckel mill cross-connection control rolling technique of milling train utilization rate.
Purpose of the present invention can be achieved through the following technical solutions:
Lack (road second from the bottom length of rolled piece adds that temperature control plate blank length is no more than 78 meters) for length of rolled piece, time of staying temperature is lacked the blank of (120～180 seconds), carries out according to the following steps:
1. entering milling train after the first compact material tapping, to carry out the recrystallization zone rolling, send the cooled region of milling train back to treat temperature after rolling;
2. entering milling train after the second compact material tapping, to carry out the recrystallization zone rolling, returns the cooled region of milling train front after rolling and treat temperature;
3. the first compact material is cooled to return behind 850～950 ℃ of the design temperatures milling train directly to carry out the non-recrystallization district rolling, is sent to the milling train back after rolling, and enters downcoiler and is rolled into coil of strip or enters straightener and align into steel plate;
4. the second compact material is cooled to enter milling train behind 850～950 ℃ of the design temperatures, and it is rolling to carry out the non-recrystallization district, is sent to the milling train back after rolling, and enters downcoiler and is rolled into coil of strip or enters straightener and align into steel plate.
Lack (road second from the bottom length of rolled piece adds that temperature control plate blank length is no more than 78 meters) for length of rolled piece, time of staying temperature is grown the blank of (180～270 seconds), carries out according to the following steps:
1. entering milling train after the first compact material tapping, to carry out the recrystallization zone rolling, delivers to the cooled region of milling train back after rolling and treat temperature;
2. entering milling train after the second compact material tapping, to carry out the recrystallization zone rolling, returns the cooled region of milling train front after rolling and treat temperature;
3. the first compact material begins to return milling train, empty also treat temperature after crossing milling train, be cooled to enter milling train behind 850～950 ℃ of the design temperatures that it is rolling to carry out the non-recrystallization district to the preceding cooled region of machine, be sent to the milling train back after rolling, enter downcoiler and be rolled into coil of strip or enter straightener and align into steel plate;
4. the second compact material is cooled to enter milling train behind 850～950 ℃ of the design temperatures, and it is rolling to carry out the non-recrystallization district, is sent to the milling train back after rolling, and enters downcoiler and is rolled into coil of strip or enters straightener and align into steel plate.
Grow (road second from the bottom length of rolled piece adds that temperature control plate blank length is above 78 meters) for length of rolled piece, time of staying temperature is lacked the blank of (120～180 seconds), carries out according to the following steps:
1. entering milling train after the first compact material tapping, to carry out the recrystallization zone rolling, delivers to milling train back cooled region after rolling and treat temperature;
2. entering milling train after the second compact material tapping, to carry out the recrystallization zone rolling, returns milling train front cooled region after rolling and treat temperature;
3. the first compact material is cooled to return behind 850～950 ℃ of the design temperatures milling train directly to carry out the non-recrystallization district rolling, preceding 1～2 passage of finish to gauge enters coiler furnace and rolls up and roll, and is sent to the milling train back after rolling and enters downcoiler and be rolled into coil of strip or enter straightener and align into steel plate;
4. the second compact material is cooled to enter milling train behind 850～950 ℃ of the design temperatures, it is rolling to carry out the non-recrystallization district, preceding 1～2 passage of finish to gauge is put down to roll or enter coiler furnace and is rolled up and roll, and is sent to the milling train back after rolling and enters downcoiler and be rolled into coil of strip or enter straightener and align into steel plate.
Grow (road second from the bottom length of rolled piece adds that temperature control plate blank length is above 78 meters) for length of rolled piece, time of staying temperature is grown the blank of (180～270 seconds), carries out according to the following steps:
1. entering milling train after the first compact material tapping, to carry out the recrystallization zone rolling, is sent to milling train back cooled region after rolling and treats temperature;
2. entering milling train after the second compact material tapping, to carry out the recrystallization zone rolling, returns milling train front cooled region after rolling and treat temperature;
3. the first compact material begins to return milling train, sky is also treated temperature to the preceding cooled region of machine after crossing milling train, be cooled to enter milling train behind 850～950 ℃ of the design temperatures, it is rolling to carry out the non-recrystallization district, preceding 1～2 passage of finish to gauge enters coiler furnace and rolls up and roll, and is sent to the milling train back after rolling and enters downcoiler and be rolled into coil of strip and can enter straightener and align into steel plate;
4. the second compact material is cooled to enter milling train behind 850～950 ℃ of the design temperatures, it is rolling to carry out the non-recrystallization district, preceding 1～2 passage of finish to gauge is flat rolls or enters coiler furnace and roll up and roll, and is sent to the milling train back after rolling and enters downcoiler and be rolled into coil of strip or enter straightener and align into steel plate.
Advantage of the present invention is: single stand four-roller steckel mill cross-connection control rolling technique of the present invention can be selected the different modes of production for use with time of staying temperature flexibly according to length of rolled piece, improved the milling train utilization rate, reduce production cost, overcome the difficulty that the space is little, be difficult to realize crossing on the same level or space crossed controlled rolling production technology.In addition, single stand four-roller steckel mill cross-connection control rolling technique of the present invention does not carry out any transformation to equipment on original production line, need not additional investment.
Description of drawings
Fig. 1 is a single stand four-roller steckel mill cross-connection control rolling technique flow chart of the present invention.
The specific embodiment
Embodiment one
Present embodiment is used for length of rolled piece and lacks (road second from the bottom length of rolled piece adds that temperature control plate blank length is no more than 78 meters), time of staying temperature is lacked the blank of (120～180 seconds), present embodiment is selected the qualified S355J2 wind tower steel of chemical analysis, the blank specification is 150*3063*Lmm, finished product thickness is 31mm, rolls some passages altogether.The phase I start rolling temperature is 1100～1200 ℃, and temperature control plate blank thickness is at 40～60mm, and the second stage start rolling temperature is set in 850～950 ℃, and the temperature control time is about 150 seconds.The controlled rolling process chart of present embodiment as shown in Figure 1, the concrete operation of rolling is as follows:
1. entering single stand four-roller reversable mill 1 after the tapping of the first compact material 8, to carry out the recrystallization zone rolling, rolls the back and send the cooled region of milling train back to treat temperature by roller-way 4;
2. entering single stand four-roller reversable mill 1 after the tapping of the second compact material 7, to carry out the recrystallization zone rolling, rolls the back and treat temperature by the cooled region that roller-way 4 returns the milling train front;
3. entering milling train behind the second stage start rolling temperature that the first compact material 8 is cooled to set, to carry out finishing pass rolling, enters the laminar flow cooled region by roller-way 4 after throwing steel, enters thermal straightening machine 6 aligning backs after watering and go up cold bed;
4. entering milling train behind the second stage start rolling temperature that the second compact material 7 is cooled to set, to carry out finishing pass rolling, enters the laminar flow cooled region after throwing steel, enters thermal straightening machine 6 aligning backs after watering and go up cold bed, and going out trimmed size is the steel plate 12 of 31*3063*1mm.
Embodiment two
Present embodiment is used for length of rolled piece and lacks (road second from the bottom length of rolled piece adds that temperature control plate blank length is no more than 78 meters), time of staying temperature is grown the blank of (180～270 seconds), present embodiment is selected the qualified X70HIC pipe line steel of chemical analysis, the blank specification is 150*3170*Lmm, finished product thickness is 21mm, rolls some passages altogether.The phase I start rolling temperature is 1100～1200 ℃, and temperature control plate blank thickness is at 70～80mm, and the second stage start rolling temperature is set in 800～900 ℃, and the temperature control time is about 200 seconds.The controlled rolling process chart of present embodiment as shown in Figure 1, the concrete operation of rolling is as follows:
1. enter single stand four-roller reversable mill 1 after the tapping of the first compact material 9 and roll some passages, cooled region is treated temperature after rolling that the back is empty and crossing milling train and send machine;
2. enter single stand four-roller reversable mill 1 after 7 tappings of the second compact material and roll some passages, the preceding cooled region of the machine that returns after rolling is treated temperature;
3. the first compact material 9 begins to return milling train, empty cross milling train together after, also treat temperature to the preceding cooled region of machine, entering milling train behind the second stage start rolling temperature that is cooled to set, to carry out finishing pass rolling, enter the laminar flow cooled region after throwing steel, enter thermal straightening machine 6 aligning backs after watering and go up cold bed;
4. entering milling train behind the second stage start rolling temperature that the second compact material 7 is cooled to set, to carry out finishing pass rolling, enters the laminar flow cooled region after throwing steel, enters thermal straightening machine 6 aligning backs after watering and go up cold bed, and going out trimmed size is the steel plate 12 of 21*3170*1mm.
Embodiment three
Present embodiment is used for length of rolled piece and grows (road second from the bottom length of rolled piece adds that temperature control plate blank length is above 78 meters), time of staying temperature is lacked the blank of (120～180 seconds), present embodiment is selected the qualified L450MB pipe line steel of chemical analysis, the blank specification is 180*2085*L (mm), finished product thickness is 17.5mm, rolls some passages altogether.The phase I start rolling temperature is at 1100～1200 ℃, and temperature control plate blank thickness is 50～70mm, and the second stage start rolling temperature is set in 850～950 ℃, and the temperature control time is about 160 seconds.The controlled rolling process chart of present embodiment as shown in Figure 1, the concrete operation of rolling is as follows:
1. entering single stand four-roller reversable mill 1 after the tapping of the first compact material 10, to carry out the recrystallization zone rolling, delivers to milling train back cooled region after rolling and treat temperature;
2. entering single stand four-roller reversable mill 1 after the tapping of the second compact material 7, to carry out the recrystallization zone rolling, returns milling train front cooled region after rolling and treat temperature;
3. returning milling train behind the second stage start rolling temperature that the first compact material 10 is cooled to set, directly to carry out the non-recrystallization district rolling, the 2nd passage reciprocal enters before the machine coiler furnace 2 and rolls up and roll, enter laminar flow behind the throwing steel and cool off, align into cold bed on the steel plate through straightener 6 then;
4. enter milling train behind the second stage start rolling temperature that the second compact material 7 is cooled to set, it is rolling to carry out the non-recrystallization district, the 2nd passage reciprocal enters before the machine coiler furnace 2 and rolls up and roll, entering laminar flow behind the throwing steel cools off, align into cold bed on the steel plate through straightener 6 then, going out trimmed size is the steel plate 12 of 17.5*2085*1mm.
Embodiment four (the 4th kind of mode)
Present embodiment is used for length of rolled piece and grows (road second from the bottom length of rolled piece adds that temperature control plate blank length is above 78 meters), time of staying temperature is grown the blank of (180～270 seconds), present embodiment is selected the qualified X80 pipe line steel of chemical analysis, the blank specification is 180*1662*L (mm), finished product thickness is 18.4mm, rolls some passages altogether.The phase I start rolling temperature is at 1100～1200 ℃, and temperature control plate blank thickness is 60～80mm, and the second stage start rolling temperature is set in 800～950 ℃, and the temperature control time is about 250 seconds.The controlled rolling process chart of present embodiment as shown in Figure 1, the concrete operation of rolling is as follows:
1. enter single stand four-roller reversable mill 1 after the tapping of the first compact material 10 and roll some passages, cooled region is treated temperature after rolling that the back is empty and crossing milling train and send machine;
2. enter single stand four-roller reversable mill 1 after 7 tappings of the second compact material and roll some passages, the preceding cooled region of the machine that returns after rolling is treated temperature;
3. the first compact material 10 begins to return milling train, behind one in the empty milling train excessively, also treat temperature to the preceding cooled region of machine, enter milling train behind the second stage start rolling temperature that is cooled to set, successively entering behind the machine before the coiler furnace 3 and machine coiler furnace 2 when being rolled down to road third from the bottom and road second from the bottom rolls up and rolls, last passage enters the laminar flow cooled region after throwing steel, enters downcoiler 5 after watering and is rolled into coil of strip 11;
4. enter milling train behind the second stage start rolling temperature that the second compact material 7 is cooled to set, successively entering behind the machine before the coiler furnace 3 and machine coiler furnace 2 when being rolled down to road third from the bottom and road second from the bottom rolls up and rolls, last passage enters the laminar flow cooled region after throwing steel, enter downcoiler 5 after watering and be rolled into coil of strip 11, going out trimmed size is the coil of strip 11 of 18.4*1662*1 (mm).
The present invention can also have other embodiment, and the technical scheme that equal replacement of all employings or equivalent transformation form all drops within the scope of protection of present invention.
Claims (4)
1. single stand four-roller steckel mill cross-connection control rolling technique is characterized in that: shorter for length of rolled piece, the blank that time of staying temperature is short, carry out according to the following steps:
1. entering milling train after the first compact material tapping, to carry out the recrystallization zone rolling, send the cooled region of milling train back to treat temperature after rolling;
2. entering milling train after the second compact material tapping, to carry out the recrystallization zone rolling, returns the cooled region of milling train front after rolling and treat temperature;
3. the first compact material is cooled to return behind 850～950 ℃ of the design temperatures milling train directly to carry out the non-recrystallization district rolling, is sent to the milling train back after rolling, and enters downcoiler and is rolled into coil of strip or enters straightener and align into steel plate;
4. the second compact material is cooled to enter milling train behind 850～950 ℃ of the design temperatures, and it is rolling to carry out the non-recrystallization district, is sent to the milling train back after rolling, and enters downcoiler and is rolled into coil of strip or enters straightener and align into steel plate.
2. single stand four-roller steckel mill cross-connection control rolling technique is characterized in that: shorter for length of rolled piece, the blank that time of staying temperature is long, carry out according to the following steps:
1. entering milling train after the first compact material tapping, to carry out the recrystallization zone rolling, delivers to the cooled region of milling train back after rolling and treat temperature;
2. entering milling train after the second compact material tapping, to carry out the recrystallization zone rolling, returns the cooled region of milling train front after rolling and treat temperature;
3. the first compact material begins to return milling train, empty also treat temperature after crossing milling train, be cooled to enter milling train behind 850～950 ℃ of the design temperatures that it is rolling to carry out the non-recrystallization district to the preceding cooled region of machine, be sent to the milling train back after rolling, enter downcoiler and be rolled into coil of strip or enter straightener and align into steel plate;
4. the second compact material is cooled to enter milling train behind 850～950 ℃ of the design temperatures, and it is rolling to carry out the non-recrystallization district, is sent to the milling train back after rolling, and enters downcoiler and is rolled into coil of strip or enters straightener and align into steel plate.
3. single stand four-roller steckel mill cross-connection control rolling technique is characterized in that: longer for length of rolled piece, the blank that time of staying temperature is short, carry out according to the following steps:
1. entering milling train after the first compact material tapping, to carry out the recrystallization zone rolling, delivers to milling train back cooled region after rolling and treat temperature;
2. entering milling train after the second compact material tapping, to carry out the recrystallization zone rolling, returns milling train front cooled region after rolling and treat temperature;
3. the first compact material is cooled to return behind 850～950 ℃ of the design temperatures milling train directly to carry out the non-recrystallization district rolling, preceding 1～2 passage of finish to gauge enters coiler furnace and rolls up and roll, and is sent to the milling train back after rolling and enters downcoiler and be rolled into coil of strip or enter straightener and align into steel plate;
4. the second compact material is cooled to enter milling train behind 850～950 ℃ of the design temperatures, it is rolling to carry out the non-recrystallization district, preceding 1～2 passage of finish to gauge is put down to roll or enter coiler furnace and is rolled up and roll, and is sent to the milling train back after rolling and enters downcoiler and be rolled into coil of strip or enter straightener and align into steel plate.
4. single stand four-roller steckel mill cross-connection control rolling technique is characterized in that: longer for length of rolled piece, the blank that time of staying temperature is long, carry out according to the following steps:
1. entering milling train after the first compact material tapping, to carry out the recrystallization zone rolling, is sent to milling train back cooled region after rolling and treats temperature;
2. entering milling train after the second compact material tapping, to carry out the recrystallization zone rolling, returns milling train front cooled region after rolling and treat temperature;
3. the first compact material begins to return milling train, sky is also treated temperature to the preceding cooled region of machine after crossing milling train, be cooled to enter milling train behind 850～950 ℃ of the design temperatures, it is rolling to carry out the non-recrystallization district, preceding 1～2 passage of finish to gauge enters coiler furnace and rolls up and roll, and is sent to the milling train back after rolling and enters downcoiler and be rolled into coil of strip and can enter straightener and align into steel plate;
4. the second compact material is cooled to enter milling train behind 850～950 ℃ of the design temperatures, it is rolling to carry out the non-recrystallization district, preceding 1～2 passage of finish to gauge is flat rolls or enters coiler furnace and roll up and roll, and is sent to the milling train back after rolling and enters downcoiler and be rolled into coil of strip or enter straightener and align into steel plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101240149A CN101298081A (en) | 2008-06-18 | 2008-06-18 | Single stand four-roller steckel mill cross-connection control rolling technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101240149A CN101298081A (en) | 2008-06-18 | 2008-06-18 | Single stand four-roller steckel mill cross-connection control rolling technique |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101298081A true CN101298081A (en) | 2008-11-05 |
Family
ID=40078110
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008101240149A Pending CN101298081A (en) | 2008-06-18 | 2008-06-18 | Single stand four-roller steckel mill cross-connection control rolling technique |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101298081A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101700528B (en) * | 2009-11-20 | 2011-06-22 | 南京钢铁股份有限公司 | Control method of single-rack steckel mill for reducing final pass speed of rolling pieces |
| CN102172830A (en) * | 2011-01-06 | 2011-09-07 | 中冶东方工程技术有限公司 | Compound production line system |
| CN102179406A (en) * | 2011-02-28 | 2011-09-14 | 南京钢铁股份有限公司 | Method for rolling thin high-strength steel plate of single-frame steckel mill |
| CN102430569A (en) * | 2011-11-14 | 2012-05-02 | 湖南华菱湘潭钢铁有限公司 | Device for improving hourly yield of single-chassis medium plate mill and rolling method thereof |
| CN106269873A (en) * | 2016-07-29 | 2017-01-04 | 安阳钢铁股份有限公司 | Utilize the method that holding pit and single heating furnace tandem rolling produce hot-rolled orientation silicon steel |
| CN111036717A (en) * | 2019-12-31 | 2020-04-21 | 云南云铝润鑫铝业有限公司 | Automatic straightening device for aluminum guide rod |
| CN113275385A (en) * | 2021-06-29 | 2021-08-20 | 南京钢铁股份有限公司 | Method for dynamically controlling to-be-rolled position of single-stand rolling mill |
-
2008
- 2008-06-18 CN CNA2008101240149A patent/CN101298081A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101700528B (en) * | 2009-11-20 | 2011-06-22 | 南京钢铁股份有限公司 | Control method of single-rack steckel mill for reducing final pass speed of rolling pieces |
| CN102172830A (en) * | 2011-01-06 | 2011-09-07 | 中冶东方工程技术有限公司 | Compound production line system |
| CN102172830B (en) * | 2011-01-06 | 2013-05-08 | 中冶东方工程技术有限公司 | Compound production line system |
| CN102179406A (en) * | 2011-02-28 | 2011-09-14 | 南京钢铁股份有限公司 | Method for rolling thin high-strength steel plate of single-frame steckel mill |
| CN102179406B (en) * | 2011-02-28 | 2013-01-16 | 南京钢铁股份有限公司 | Method for rolling thin high-strength steel plate of single-frame steckel mill |
| CN102430569A (en) * | 2011-11-14 | 2012-05-02 | 湖南华菱湘潭钢铁有限公司 | Device for improving hourly yield of single-chassis medium plate mill and rolling method thereof |
| CN106269873A (en) * | 2016-07-29 | 2017-01-04 | 安阳钢铁股份有限公司 | Utilize the method that holding pit and single heating furnace tandem rolling produce hot-rolled orientation silicon steel |
| CN106269873B (en) * | 2016-07-29 | 2018-01-05 | 安阳钢铁股份有限公司 | Utilize the method for holding pit and single heating furnace tandem rolling production hot-rolled orientation silicon steel |
| CN111036717A (en) * | 2019-12-31 | 2020-04-21 | 云南云铝润鑫铝业有限公司 | Automatic straightening device for aluminum guide rod |
| CN113275385A (en) * | 2021-06-29 | 2021-08-20 | 南京钢铁股份有限公司 | Method for dynamically controlling to-be-rolled position of single-stand rolling mill |
| CN113275385B (en) * | 2021-06-29 | 2022-08-19 | 南京钢铁股份有限公司 | Method for dynamically controlling to-be-rolled position of single-stand rolling mill |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101298081A (en) | Single stand four-roller steckel mill cross-connection control rolling technique | |
| CN101391264B (en) | Technique method of thin middle plate continuous casting and rolling production | |
| RU2497612C2 (en) | Method of rolling and rolling unit | |
| CN103480647B (en) | A kind of device and production method thereof of producing reinforcing bar without heating low temperature Direct Rolling small billet | |
| CN102247981B (en) | Structural steel rolling production line and production process thereof | |
| KR960008867B1 (en) | Method and apparatus for intermediate thickness slab caster and inline hot strip and plate line | |
| CN101809173A (en) | The hot-rolling method and the equipment of hot rolling of the band that constitutes by silicon steel or heterogeneous steel | |
| CN101209456B (en) | Production method of high-strength medium-thickness steel plate | |
| CN106734192A (en) | High intensity small dimension hot-rolled reinforced bar production equipment and its production technology | |
| CN101972782A (en) | Device and method for cooling intermediate rolled blank of hot rolled strip | |
| CN102513384A (en) | Method for cooling intermediate billet of medium-thickness plate by using equipment for cooling after rolling | |
| CN101745794A (en) | Preparation technology of non-oriented high-grade silicon steel | |
| CN114273425A (en) | Continuous casting and rolling production line and production method for avoiding ferrite rolling mixed crystals | |
| CN104399745A (en) | Steekle mill production line provided with roughing mill and work method of steekle mill production line | |
| CN109663809A (en) | Large-scale and ultra-large H-beam rolling mill practice | |
| CN104415968A (en) | Hot-rolling high-speed tool steel bar and wire producing process | |
| CN101362147B (en) | Rolling and cooling controlled hot-rolling test rolling mill | |
| CN1640569A (en) | Direct rolling process for heavy-medium plate billet continuous casting-rolling mill set | |
| CN112705569B (en) | Steckel mill production line with ultra-short distance arrangement and rolling process | |
| CN104399748A (en) | Production line capable of replacing conventional hot continuous rolling production line of wide strip steel and rolling process | |
| CN102179403A (en) | Production device of high-strength fine-grain hot rolled ribbed steel bars and production process thereof | |
| CN204276517U (en) | A kind of production line that can replace conventional broadband steel hot continuous rolling | |
| CN101590488B (en) | Rolling technical skill of hot strip rough rolling process | |
| CN212384281U (en) | Double-high-rod controlled cold rolling system | |
| CN1640568A (en) | Marginal concurrent heating direct-rolling process for heavy-medium plate billet continuous casting-rolling mill set |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Open date: 20081105 |