CN106269871B - A kind of method for using increasing speed rolling technique productions thickness≤2.0mm low-intensity strips in CSP producing lines - Google Patents
A kind of method for using increasing speed rolling technique productions thickness≤2.0mm low-intensity strips in CSP producing lines Download PDFInfo
- Publication number
- CN106269871B CN106269871B CN201610751652.8A CN201610751652A CN106269871B CN 106269871 B CN106269871 B CN 106269871B CN 201610751652 A CN201610751652 A CN 201610751652A CN 106269871 B CN106269871 B CN 106269871B
- Authority
- CN
- China
- Prior art keywords
- speed
- thickness
- low
- rolling
- steel
- 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.)
- Active
Links
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
- B21B1/46—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 metal immediately subsequent to continuous casting
- B21B1/463—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 metal immediately subsequent to continuous casting in a continuous process, i.e. the cast not being cut before rolling
Abstract
A kind of method for using increasing speed rolling technique productions thickness≤2.0mm low-intensity strips in CSP producing lines, its step：Conventional smelting, external refining are simultaneously casting continuously to form base；Soaking is carried out to strand；Enter mm finishing mill unit after high pressure descaling, rolled using increasing speed rolling pattern；Batched after conventional section cooling.The present invention solves the too fast threading speed that there is currently and throws steel speed, cause head to be rolled brokenly, afterbody whipping it is frequent, steel scrap, it is disconnected pour, the production such as roll marks and quality accident it is more, at the uniform velocity roll pure to roll the time longer, limit the buffer capacity of soaking pit and the raising of rhythm of production, it is serious to restrict the deficiency of roll line troubleshooting and the lifting of thin material yield, and the casting machine drop pulling rate time can be reduced, substantially reduce oven improvement.
Description
Technical field
The present invention relates to a kind of production method of low-intensity sheet metal, specifically belongs to one kind and uses raising speed in CSP producing lines
The method that rolling mill practice produces thickness≤2.0mm low-intensity strips, it is special to be no more than 490MPa suitable for tensile strength, and thickness≤
The production method of 2.0mm steel plate.
Background technology
CSP is the sheet billet continuous casting and rolling production line of latest generation, and it has, and flow is short, cost is low, product grains are tiny,
The advantages that intensity height and high dimensional accuracy.CSP productions thin material is more advantageous than conventional hot rolling in theory, but this advantage simply embodies
Equipment arrangement and technological process on, the advantage is converted into product advantage true, then need technology research and development and
Using as support.Following problem be present in CSP thin materials production at present：（1）Strip is respectively at machine during threading and throwing steel
Without building and lose a stage between frame, strip not by the tension force effect of rolling direction, the problem of shape wave and sideslip be present, it is necessary to by
Both sides roll gap is adjusted, when ensureing that rolling stability, particularly thin gauge strip roll, too fast threading speed and throwing steel speed
Degree is unfavorable for the adjustment of plate shape, and head easily occurs and rolls broken and the situation of afterbody whipping, cause steel scrap, break pour, roll marks etc. it is a series of
Production and quality problems；（2）CSP producing line mm finishing mill units are that seven frames at the uniform velocity roll, at the uniform velocity roll it is pure roll the time length, limit
The buffer capacity of hot stove and the raising of rhythm of production, the raising of the serious processing and thin material yield for restricting roll line failure.
Mm finishing mill unit is using the pattern at the uniform velocity rolled at the beginning of CSP producing lines design, but is at the uniform velocity rolled when thin gauge strip rolls
The drawbacks of molding formula, gradually shows, and strip steel head threading speed and afterbody throwing steel speed are too fast, and plate shape adjustment difficulty is big, and unfavorable
In raising production efficiency.Increasing speed rolling refers to elder generation's low speed threading during rolled band steel, it is to be reeled sting steel after strip it is synchronous with coiling machine
Raising speed carries out high-speed rolling, and reduction of speed carries out the method that low speed throws steel when being rolled to afterbody.Increasing speed rolling is in conventional hot rolling producing line application
More, its method can effectively reduce strip head and tail temperature difference, improve rolling mill efficiency.
CSP producing lines are for conventional hot rolling producing line, and equipment arrangement and process conditions are entirely different, and conticaster passes through roller
Bottom formula soaking pit is connected with mm finishing mill unit, and roller hearth soaking furnace plays the role of to buffer and adjusts rhythm of production, and slab is from equal
Hot stove is directly entered mm finishing mill unit without roughing after coming out and rolled, and each frame roll-force of mm finishing mill unit is significantly increased.
In addition, section cooling line is shorter, realize that control target temperature difficulty is very big on shorter cooling line.So it can not refer to conventional
The increasing speed rolling of hot rolling producing line carries out the increasing speed rolling technological design of CSP producing lines, while increasing speed rolling technique is not also similar
The precedent of CSP producing lines application.Therefore, it need to carry out accordingly to study and use increasing speed rolling work in CSP producing line to inquire into
The method that skill produces thickness≤2.0mm low-intensity strips.
The content of the invention
The invention reside in provide a kind of solution at present in CSP producing lines production thickness≤2.0mm, tensile strength to be no more than
During 490MPa strips, head is rolled brokenly and afterbody whipping is frequent, steel scrap, it is disconnected pour, the production such as roll marks and quality accident it is more,
Soaking pit buffer capacity deficiency, the problem of rhythm of production anxiety, and casting machine can be reduced reduce the pulling rate time, and reduce oven improvement
Method.
Realize the measure of above-mentioned purpose：
A kind of method for using increasing speed rolling technique productions thickness≤2.0mm low-intensity strips in CSP producing lines, its step：
1）Carry out conventional smelting, external refining and be casting continuously to form base, and control opening for continuous casting billet to pour thickness in 70mm, from second
Block casting base starts, and the thickness for reducing strand is depressed to 55~60mm using wick-containing；
2）Soaking is carried out to strand, control strand tapping temperature is at 1150~1200 DEG C；
3）Enter mm finishing mill unit after high pressure descaling, rolled using increasing speed rolling pattern, i.e.,：Low speed threading → high speed
Rolling → low speed throws steel；F1 ~ F3 interstand cooling water waters are set according to the 50-90% of specified water；Control finishing temperature
At 840~880 DEG C；
In 9~10.5m/s, highest mill speed controls in 12~16m/s threading speed control, throws steel speed control 10
~12m/s；
4）Batched after conventional section cooling, and control coiling temperature at 560~660 DEG C.
It is：The speed of high-speed rolling and coiling machine synchronous raising speed.
The effect of main technique and mechanism in the present invention
Why the present invention uses increasing speed rolling technique, is：The control strip steel head speed of service is entered under 9 ~ 10.5m/s
Row threading, to reduce the risk that head folds and rolled brokenly；Control head threading after with coiling machine synchronous raising speed, highest mill speed
In 12~16m/s, with reduce it is pure roll the time, increase soaking pit buffer time；Control is when being rolled to afterbody under strip speed
It is down to 10 ~ 12m/s and carries out throwing steel, to give operating personnel's more plate shape regulation and control times, avoids whipping.
The present invention compared with prior art, solves the too fast threading speed that there is currently and throws steel speed, cause head
Portion rolls brokenly, afterbody whipping is frequent, steel scrap, it is disconnected pour, the production such as roll marks and quality accident it is more, at the uniform velocity roll it is pure roll the time compared with
It is long, the buffer capacity of soaking pit and the raising of rhythm of production are limited, serious restriction roll line troubleshooting and thin material yield carry
The deficiency risen, and the casting machine drop pulling rate time can be reduced, substantially reduce oven improvement.
Embodiment
The present invention is described in detail below：
Embodiment 1
The present embodiment is produced into the steel grade that brand number is Q235B, rolling width 1000 mm, product thickness 1.4mm, tension
Intensity is 480MPa；
Production stage：
1）Carry out conventional smelting, external refining and be casting continuously to form base, and control opening for continuous casting billet to pour thickness in 70mm, from second
Block casting base starts, and the thickness for reducing strand is depressed to 55mm using wick-containing；
2）Soaking is carried out to strand, strand tapping temperature is at 1165 DEG C；
3）Slab is rolled after high pressure descaling, rolling is carried out using increasing speed rolling pattern, i.e.,：Low speed threading → head
High-speed rolling → low speed is carried out with coiling machine synchronous raising speed throw steel after portion's threading, wherein, threading speed is 10.2m/s；Highest is rolled
Speed processed is 15m/s, and it is synchronous with the holding of coiling machine speed；Steel speed is thrown in 10.8m/s；
F1 ~ F3 interstand cooling water waters are according to 80% setting of specified water, and finishing temperature is at 860 DEG C；
4）Batched after conventional section cooling, coiling temperature is at 560 DEG C.
Through inspection statistics, strip steel head unfolded and roll brokenly, afterbody without whipping phenomenon, there there is no casting machine in whole production process
Pulling rate is dropped, also changes the original sentence to problem without generation quality, product is qualified.
Embodiment 2
It is SPHC-B steel grades that the present embodiment, which is produced into brand number, rolling width 1219 mm, product thickness 1.2mm, and tension is strong
Spend for 370MPa；
Production stage：
1）Carry out conventional smelting, external refining and be casting continuously to form base, and control opening for continuous casting billet to pour thickness in 70mm, from second
Block casting base starts, and the thickness for reducing strand is depressed to 55mm using wick-containing；
2）Soaking is carried out to strand, strand tapping temperature is at 1185 DEG C；
3）Slab is rolled after high pressure descaling, rolling is carried out using increasing speed rolling pattern, i.e.,：Low speed threading → head
High-speed rolling → low speed is carried out with coiling machine synchronous raising speed throw steel after portion's threading, wherein, threading speed is 10.5m/s；Highest is rolled
Speed processed is 15.5m/s, and it is synchronous with the holding of coiling machine speed；Steel speed is thrown in 11m/s；
F1 ~ F3 interstand cooling water waters are according to 90% setting of specified water, and finishing temperature is at 850 DEG C；
4）Batched after conventional section cooling, coiling temperature is at 620 DEG C.
Through inspection statistics, strip steel head unfolded and roll brokenly, afterbody without whipping phenomenon, there there is no casting machine in whole production process
Pulling rate is dropped, also changes the original sentence to problem without generation quality, product is qualified.
Embodiment 3
The present embodiment is produced into the steel grade that brand number is SAE1006, rolling width 1212 mm, product thickness 1.8mm, resists
Tensile strength is 360MPa；
Production stage：
1）Carry out conventional smelting, external refining and be casting continuously to form base, and control opening for continuous casting billet to pour thickness in 70mm, from second
Block casting base starts, and the thickness for reducing strand is depressed to 60mm using wick-containing；
2）Soaking is carried out to strand, strand tapping temperature is at 1160 DEG C；
3）Slab is rolled after high pressure descaling, rolling is carried out using increasing speed rolling pattern, i.e.,：Low speed threading → head
High-speed rolling → low speed is carried out with coiling machine synchronous raising speed throw steel after portion's threading, wherein, threading speed is 10m/s；Highest rolls
Speed is 14m/s, and it is synchronous with the holding of coiling machine speed；Steel speed is thrown in 10.5m/s；
F1 ~ F3 interstand cooling water waters are according to 60% setting of specified water, and finishing temperature is at 873 DEG C；
4）Batched after conventional section cooling, coiling temperature is at 630 DEG C.
Through inspection statistics, strip steel head unfolded and roll brokenly, afterbody without whipping phenomenon, there there is no casting machine in whole production process
Pulling rate is dropped, also changes the original sentence to problem without generation quality, product is qualified.
Embodiment 4
The present embodiment is produced into the steel grade that brand number is SAE1008, rolling width 1230mm, product thickness 2.0mm, tension
Intensity is 350MPa；
Production stage：
1）Carry out conventional smelting, external refining and be casting continuously to form base, and control opening for continuous casting billet to pour thickness in 70mm, from second
Block casting base starts, and the thickness for reducing strand is depressed to 60mm using wick-containing；
2）Soaking is carried out to strand, strand tapping temperature is at 1150 DEG C；
3）Slab is rolled after high pressure descaling, rolling is carried out using increasing speed rolling pattern, i.e.,：Low speed threading → head
High-speed rolling → low speed is carried out with coiling machine synchronous raising speed throw steel after portion's threading, wherein, threading speed is 9.5m/s；Highest rolls
Speed is 13m/s, and it is synchronous with the holding of coiling machine speed；Steel speed is thrown in 10m/s；
F1 ~ F3 interstand cooling water waters are according to 50% setting of specified water, and finishing temperature is at 880 DEG C；
4）Batched after conventional section cooling, coiling temperature is at 640 DEG C.
Through inspection statistics, strip steel head unfolded and roll brokenly, afterbody without whipping phenomenon, there there is no casting machine in whole production process
Pulling rate is dropped, also changes the original sentence to problem without generation quality, product is qualified.
Embodiment 5
It is S235JR+AR steel grades that the present embodiment, which is produced into brand number, rolling width 1250 mm, product thickness 1.5mm, is resisted
Tensile strength is 400MPa；
Production stage：
1）Carry out conventional smelting, external refining and be casting continuously to form base, and control opening for continuous casting billet to pour thickness in 70mm, from second
Block casting base starts, and the thickness for reducing strand is depressed to 55mm using wick-containing；
2）Soaking is carried out to strand, strand tapping temperature is at 1175 DEG C；
3）Slab is rolled after high pressure descaling, rolling is carried out using increasing speed rolling pattern, i.e.,：Low speed threading → head
High-speed rolling → low speed is carried out with coiling machine synchronous raising speed throw steel after portion's threading, wherein, threading speed is 10.3m/s；Highest is rolled
Speed processed is 15.2m/s, and it is synchronous with the holding of coiling machine speed；Steel speed is thrown in 10.9m/s；
F1 ~ F3 interstand cooling water waters are according to 75% setting of specified water, and finishing temperature is at 868 DEG C；
4）Batched after conventional section cooling, coiling temperature is at 570 DEG C.
Through inspection statistics, strip steel head unfolded and roll brokenly, afterbody without whipping phenomenon, there there is no casting machine in whole production process
Pulling rate is dropped, also changes the original sentence to problem without generation quality, product is qualified.
Present embodiment is only the best example, not to the restricted implementation of technical solution of the present invention.
Claims (2)
1. a kind of method for using increasing speed rolling technique productions thickness≤2.0mm low-intensity strips in CSP producing lines, its feature exist
In：Its step：
1）Carry out conventional smelting, external refining and be casting continuously to form base, and control opening for continuous casting billet to pour thickness in 70mm, from the second block casting
Base starts, and the thickness for reducing strand is depressed to 55~60mm using wick-containing；
2）Soaking is carried out to strand, control strand tapping temperature is at 1150~1200 DEG C；
3）Enter mm finishing mill unit after high pressure descaling, rolled using increasing speed rolling pattern, i.e.,：Low speed threading → high-speed rolling
→ low speed throws steel；F1 ~ F3 interstand cooling water waters are set according to the 50-90% of specified water；Control finishing temperature exists
840~880 DEG C；
Controlling the strip steel head speed of service, highest mill speed is controlled in 12~16m/s, throws steel speed control in 9~10.5m/s
In 10~12m/s；
4）Batched after conventional section cooling, and control coiling temperature at 560~660 DEG C.
2. one kind as claimed in claim 1 uses increasing speed rolling technique productions thickness≤2.0mm low-intensity strips in CSP producing lines
Method, it is characterised in that：The speed of high-speed rolling and coiling machine synchronous raising speed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610751652.8A CN106269871B (en) | 2016-08-30 | 2016-08-30 | A kind of method for using increasing speed rolling technique productions thickness≤2.0mm low-intensity strips in CSP producing lines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610751652.8A CN106269871B (en) | 2016-08-30 | 2016-08-30 | A kind of method for using increasing speed rolling technique productions thickness≤2.0mm low-intensity strips in CSP producing lines |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106269871A CN106269871A (en) | 2017-01-04 |
| CN106269871B true CN106269871B (en) | 2017-12-08 |
Family
ID=57674231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610751652.8A Active CN106269871B (en) | 2016-08-30 | 2016-08-30 | A kind of method for using increasing speed rolling technique productions thickness≤2.0mm low-intensity strips in CSP producing lines |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106269871B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107617647B (en) * | 2017-09-13 | 2021-01-26 | 武汉钢铁有限公司 | Method for producing hot-rolled strip steel with thickness less than or equal to 1.2mm by continuous casting and rolling of sheet billet |
| CN107828951B (en) * | 2017-10-16 | 2019-12-03 | 首钢京唐钢铁联合有限责任公司 | A kind of method and device manufacturing cold rolling high-strength steel |
| CN110317995B (en) * | 2019-06-03 | 2020-08-25 | 武汉钢铁有限公司 | Method for producing thin medium-carbon hot-rolled steel plate with good surface quality by using CSP (cast Steel plate) |
| CN113680818B (en) * | 2021-06-22 | 2023-06-27 | 武汉钢铁有限公司 | CSP flow-based SAE1006 thin material manufacturing method |
| CN114535316B (en) * | 2022-02-08 | 2023-10-03 | 邯郸钢铁集团有限责任公司 | Coiling temperature control method for hot-rolled high-strength dual-phase steel |
| CN114602977A (en) * | 2022-02-14 | 2022-06-10 | 唐山钢铁集团有限责任公司 | Control method for throwing steel and drifting of hot-rolled strip steel |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86108451A (en) * | 1985-12-12 | 1987-07-22 | 川崎制铁株式会社 | Production has improved the steel-sheet method of processing characteristics |
| EP0504999A2 (en) * | 1991-03-22 | 1992-09-23 | Hoogovens Groep B.V. | Apparatus and method for the manufacture of hot-rolled steel |
| JPH0751243B2 (en) * | 1988-02-05 | 1995-06-05 | 株式会社日立製作所 | Strip passing method in continuous casting equipment |
| CN1483521A (en) * | 2002-09-19 | 2004-03-24 | 鞍钢集团新钢铁有限责任公司 | Method for continuous casting, continuoccs rolling intermediate and thin sheet blanket |
| CN1840252A (en) * | 2005-03-28 | 2006-10-04 | 鞍钢集团新钢铁有限责任公司 | Production process of continuous-casting tandem-rolling coiled sheet of medium thick plate |
| CN101181718A (en) * | 2007-12-11 | 2008-05-21 | 武汉钢铁(集团)公司 | Method for producing wide strip steel by bar strip continuous casting and rolling as well as system therefor |
| CN102240674A (en) * | 2010-05-10 | 2011-11-16 | 丹尼尔和科菲森梅克尼齐有限公司 | Method and plant for the production of flat rolled products |
| CN102839321A (en) * | 2012-08-31 | 2012-12-26 | 武汉钢铁(集团)公司 | Ultrathin hot-rolled sheet strip with yield strength more than or equal to 500MPa level and manufacturing method thereof |
| WO2013109570A1 (en) * | 2012-01-19 | 2013-07-25 | Siemens Vai Metals Technologies Gmbh | Dual cascade control system for a long rolling mill |
| KR20140081048A (en) * | 2012-12-21 | 2014-07-01 | 주식회사 포스코 | Hot rolled with excellent hole expansion and variation of mechanical properties and method for manufacturing the same |
-
2016
- 2016-08-30 CN CN201610751652.8A patent/CN106269871B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86108451A (en) * | 1985-12-12 | 1987-07-22 | 川崎制铁株式会社 | Production has improved the steel-sheet method of processing characteristics |
| JPH0751243B2 (en) * | 1988-02-05 | 1995-06-05 | 株式会社日立製作所 | Strip passing method in continuous casting equipment |
| EP0504999A2 (en) * | 1991-03-22 | 1992-09-23 | Hoogovens Groep B.V. | Apparatus and method for the manufacture of hot-rolled steel |
| CN1483521A (en) * | 2002-09-19 | 2004-03-24 | 鞍钢集团新钢铁有限责任公司 | Method for continuous casting, continuoccs rolling intermediate and thin sheet blanket |
| CN1840252A (en) * | 2005-03-28 | 2006-10-04 | 鞍钢集团新钢铁有限责任公司 | Production process of continuous-casting tandem-rolling coiled sheet of medium thick plate |
| CN101181718A (en) * | 2007-12-11 | 2008-05-21 | 武汉钢铁(集团)公司 | Method for producing wide strip steel by bar strip continuous casting and rolling as well as system therefor |
| CN102240674A (en) * | 2010-05-10 | 2011-11-16 | 丹尼尔和科菲森梅克尼齐有限公司 | Method and plant for the production of flat rolled products |
| WO2013109570A1 (en) * | 2012-01-19 | 2013-07-25 | Siemens Vai Metals Technologies Gmbh | Dual cascade control system for a long rolling mill |
| CN102839321A (en) * | 2012-08-31 | 2012-12-26 | 武汉钢铁(集团)公司 | Ultrathin hot-rolled sheet strip with yield strength more than or equal to 500MPa level and manufacturing method thereof |
| KR20140081048A (en) * | 2012-12-21 | 2014-07-01 | 주식회사 포스코 | Hot rolled with excellent hole expansion and variation of mechanical properties and method for manufacturing the same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106269871A (en) | 2017-01-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106269871B (en) | A kind of method for using increasing speed rolling technique productions thickness≤2.0mm low-intensity strips in CSP producing lines | |
| CN1103647C (en) | Method and arrangement for producing hot-rolled strip | |
| CN107617647B (en) | Method for producing hot-rolled strip steel with thickness less than or equal to 1.2mm by continuous casting and rolling of sheet billet | |
| US8408035B2 (en) | Method of and apparatus for hot rolling a thin silicon-steel workpiece into sheet steel | |
| CN110116135B (en) | Endless rolling production method for rod and wire products | |
| US20220152674A1 (en) | Endless hot-rolled strip production device and method for ferrite rolling | |
| CN1972764A (en) | Process and system for manufacturing metal strips and sheets without solution of continuity between continuous casting and rolling | |
| KR101759915B1 (en) | Method for producing a metal strip | |
| CN103878178A (en) | Method for producing ultrathin hot-rolled coils from sheet billets by continuous casting and rolling | |
| CN109922904B (en) | Casting-rolling-cladding plant and method for continuously producing hot-rolled finished strip | |
| CN1085834A (en) | The manufacturing installation of hot rolled metal strip and method | |
| TWI615210B (en) | Installation based on the csp concept and method for operating such an installation | |
| CN109530646A (en) | For reducing the control method of head and tail temperature difference before direct rolling process continuous casting billet rolls | |
| CN105018842B (en) | Method for producing steel belt for low-carbon niobium-microalloyed stamping through thin slab continuous casting and rolling | |
| CN102069092B (en) | Method for producing hot rolling strip steel of 0.6-0.8mm | |
| CN107983771A (en) | The high-strength chill volume hot-rolling method of building concrete fixing piece | |
| CN103276286A (en) | Production method of X80 pipeline steel strip with thickness of 6-10 mm | |
| US3710841A (en) | Method for casting and rolling of metal stands from the casting heat | |
| CN113102504B (en) | Method and apparatus for producing flat metal products | |
| CN101011704A (en) | New technique for producing hot rolling stainless steel strip | |
| CN105382232A (en) | Method for preventing generation of center line cracks in steel board continuous casting process | |
| JP2020516466A (en) | Plant and method for multimodal production of metal strips and plates | |
| KR101442891B1 (en) | Apparatus and method for roughing mill | |
| JPS61206507A (en) | Installation for manufacturing cold-rolled steel sheet | |
| CN104438327B (en) | A kind of method of the online Direct Rolling fine-grained steel of continuous casting billet |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20170616 Address after: 430083 Qingshan District, Hubei, Wuhan factory before the door No. 2 Applicant after: Wuhan iron and Steel Company Limited Address before: 430083 Qingshan District, Hubei, Wuhan factory before the door No. 2 Applicant before: WUHAN IRON AND STEEL CORPORATION |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |