CN108160740A - A kind of cold-strip steel coiled sheet production technology - Google Patents
A kind of cold-strip steel coiled sheet production technology Download PDFInfo
- Publication number
- CN108160740A CN108160740A CN201711454349.2A CN201711454349A CN108160740A CN 108160740 A CN108160740 A CN 108160740A CN 201711454349 A CN201711454349 A CN 201711454349A CN 108160740 A CN108160740 A CN 108160740A
- Authority
- CN
- China
- Prior art keywords
- rolling
- cold
- milling train
- coiled sheet
- end milling
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/02—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/12—Accessories for subsequent treating or working cast stock in situ
- B22D11/1226—Accessories for subsequent treating or working cast stock in situ for straightening strands
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/12—Accessories for subsequent treating or working cast stock in situ
- B22D11/124—Accessories for subsequent treating or working cast stock in situ for cooling
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
Abstract
The invention discloses a kind of cold-strip steel coiled sheet production technologies, include the following steps：S1, the molten steel obtained after smelting is subjected to sheet billet continuous casting in the presence of covering slag using conticaster; casting blank solidification process uses two device for cooling; intensive guide roller is equipped in two device for cooling; to control the bulge problem of strand; content ＜ 0.09wt%, the Mn content for controlling C in molten steel are 0.15 to 0.20wt%；S2, the slab after continuous casting in S1 is pulled out strand by withdrawal straightening machine, the withdrawal straightening machine at least needs 20 pairs of pulling-straightening rollers, and is designed to multipoint straightening or continuous straightening；S6, the temperature range that the terminal part of the steel plate coiled material obtained in S5 is heated to 50 DEG C~350 DEG C, make it into coiling machine rolled, obtain cold-rolled steel coiled sheet, a kind of cold-strip steel coiled sheet production technology provided by the invention, entire rolling mill practice is succinctly smooth, stability and high efficiency, and mill speed is fast, Plate break phenomenon is low, substantially increases the process velocity and rolling quality of rolling mill production line.
Description
Technical field
The invention belongs to cold-strip steel coiled sheet production technical field more particularly to a kind of cold-strip steel coiled sheet production technologies.
Background technology
In production cold rolled reinforcing steel bar with ribs production, when carrying out aximal deformation value, high-speed rolling using this " one-to-one " mode,
Be easy to cause reinforcing bar break, accidents and the defect such as product ear shape, in practice this milling train group mill speed at most can only achieve
180 ms/min, after 180 ms/min, reinforcing bar is very easy to be broken during rolling, in the situation of current high speed cold rolling development
Under, need a kind of cold mill complex and technique that can complete high-speed rolling in production cold rolled reinforcing steel bar with ribs.In rolling process, have
When because steel band to it is mobile on the outside of the width direction of roll mill due to cause the generation of snake.To be more in general, in equipment of hot rolling
A roll mill is configured to series-like, after the front end of rolled steel band is by the roll mill of final level to the tail end of the steel band into
It is so-called in normal rolling during the roll mill for entering the first order, since steel band is restrained between each roll mill, seldom produce
Raw significant snake.But when the tail end of steel band passes through each roll mill, the restraining force based on the roll mill passed through disappears,
Therefore, the snake of steel band is drastically significantly changed.As a result, since the tail end of steel band and the side for entering side setting in downstream roll machine guide
Contact of part etc., the tail end for generating steel band fold into and rolled such so-called tail end extruding.
Invention content
The purpose of the present invention is to solve shortcoming in the prior art, and a kind of cold-strip steel coiled sheet life proposed
Production. art.
To achieve the above object, the present invention provides following technical solution：
A kind of cold-strip steel coiled sheet production technology, includes the following steps：
S1, the molten steel obtained after smelting is subjected to sheet billet continuous casting in the presence of covering slag using conticaster, casting blank solidification process is adopted
With two device for cooling, two device for cooling is interior to be equipped with intensive guide roller, to control the bulge problem of strand, controls C in molten steel
Content ＜ 0.09wt%, Mn content are 0.15 to 0.20wt%；
S2, the slab after continuous casting in S1 is pulled out strand by withdrawal straightening machine, for prevent base bulge and reduce aligning when strand in
The distortional stress in portion, the withdrawal straightening machine at least needs 20 pairs of pulling-straightening rollers, and is designed to multipoint straightening or continuous straightening；
S3, the strand pulled out in S2 via withdrawal straightening machine will be transported to heating furnace and heated, and come out of the stove, cast after being added to required temperature
The tapping temperature of base is 1250 to 1300 DEG C；Strand enters roughing mill and back and forth rolls 3-4 passages, obtains intermediate base, and intermediate base enters
Finishing mill continuously rolls 7-8 passages, obtains finished product；
S4, the step S3 finished products obtained are entered into coiling machine rolled, obtains hot-rolled steel coiled sheet；
S5, the hot rolled steel plate obtained in S4 volume is cooled down, carries out rolling below recrystallization temperature, in end milling train
Upstream is at least arranged in series two front end milling trains, and the rolling direction of the front end milling train is vertical with the rolling direction of end milling train,
The rolling direction of front end milling train is identical, and the end milling train is active milling train, and the front end milling train is passive milling train, is set
Two front end milling trains；
S6, the temperature range that the terminal part of the steel plate coiled material obtained in S5 is heated to 50 DEG C~350 DEG C, make it into and batch
Machine rolled obtains cold-rolled steel coiled sheet.
Preferably, in the step S1 conticaster section be 1600mm × 230mm, casting machine conical degree of crystallizer for 1.1 to
1.4%/m, casting machine pulling rate are 1.0 to 1.4m/min.
Preferably, the speed in the exit of the roller mill rack is measured by means of laser velocimeter.
Preferably, the start rolling temperature of roughing is 1240-1285 DEG C in the step S3, and roughing extreme trace time temperature is 1175-
1195 DEG C, the start rolling temperature of finish rolling is 1150-1175 DEG C, and finish rolling extreme trace time temperature is 920-950 DEG C.
Preferably, oily milling train is equipped in the step S3 in finishing mill, the oil milling train includes feed unit, ROLLING OIL is sprayed
Penetrate unit and discharger, the ROLLING OIL that feed unit is sprayed to the roll of the finishing mill；ROLLING OIL injection unit with it is described
Feed unit connects, and sprays the ROLLING OIL to the roll；Discharger is arranged on the ROLLING OIL injection unit, the oil
Milling train further includes control unit, and the control unit is connect with the discharger, controls the discharge of the ROLLING OIL.
Preferably, the mill speed of the cold-rolling process in the step S5 is between 900-2000 ms/min, and described two
First front end milling train sizing reduction is 0.4 times of target sizing reduction when platform front end milling train rolls in the same direction, and second front end milling train is complete
Into target tube reducing surplus.
The technique effect and advantage of the present invention：A kind of cold-strip steel coiled sheet production technology provided by the invention, it is entire to roll
Concise in technology is smooth, and stability and high efficiency, mill speed is fast, and Plate break phenomenon is low, reduces the influence that steel plate crawls to cold-rolling of steel plate,
Substantially increase the process velocity and rolling quality of rolling mill production line.
Specific embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, below in conjunction with specific embodiment, to this
Invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, not
For limiting the present invention.Based on the embodiments of the present invention, those of ordinary skill in the art are not before creative work is made
All other embodiments obtained are put, shall fall within the protection scope of the present invention.
A kind of cold-strip steel coiled sheet production technology, includes the following steps：
S1, the molten steel obtained after smelting is subjected to sheet billet continuous casting in the presence of covering slag using conticaster, casting blank solidification process is adopted
With two device for cooling, two device for cooling is interior to be equipped with intensive guide roller, to control the bulge problem of strand, controls C in molten steel
Content ＜ 0.09wt%, Mn content are 0.20wt%；
S2, the slab after continuous casting in S1 is pulled out strand by withdrawal straightening machine, for prevent base bulge and reduce aligning when strand in
The distortional stress in portion, the withdrawal straightening machine is equipped with 20 pairs of pulling-straightening rollers, and is designed to continuous straightening；
S3, the strand pulled out in S2 via withdrawal straightening machine will be transported to heating furnace and heated, and come out of the stove, cast after being added to required temperature
The tapping temperature of base is 1300 DEG C；Strand enters roughing mill and back and forth rolls 4 passages, obtains intermediate base, and intermediate base enters finishing mill company
It is continuous to roll 7 passages, obtain finished product；
S4, the step S3 finished products obtained are entered into coiling machine rolled, obtains hot-rolled steel coiled sheet；
S5, the hot rolled steel plate obtained in S4 volume is cooled down, carries out rolling below recrystallization temperature, in end milling train
Upstream is at least arranged in series two front end milling trains, and the rolling direction of the front end milling train is vertical with the rolling direction of end milling train,
The rolling direction of front end milling train is identical, and the end milling train is active milling train, and the front end milling train is passive milling train, is set
Two front end milling trains；
S6, the temperature range that the terminal part of the steel plate coiled material obtained in S5 is heated to 350 DEG C, make it into coiling machine and are rolled into
Volume, obtains cold-rolled steel coiled sheet.
In the step S1 conticaster section be 1600mm × 230mm, casting machine conical degree of crystallizer be 1.4%/m, casting machine pulling rate
For 1.4m/min.
The speed in the exit of the roller mill rack is measured by means of laser velocimeter.
The start rolling temperature of roughing is 1285 DEG C in the step S3, and roughing extreme trace time temperature is 1195 DEG C, the open rolling of finish rolling
Temperature is 1150 DEG C, and finish rolling extreme trace time temperature is 950 DEG C.
Oily milling train is equipped in the step S3 in finishing mill, the oil milling train includes feed unit, ROLLING OIL injection unit
And discharger, the ROLLING OIL that feed unit is sprayed to the roll of the finishing mill；ROLLING OIL injection unit and the supply are single
Member connection sprays the ROLLING OIL to the roll；Discharger is arranged on the ROLLING OIL injection unit, and the oil milling train is also
Including control unit, the control unit is connect with the discharger, controls the discharge of the ROLLING OIL.
For the mill speed of cold-rolling process in the step S5 between 900 ms/min, described two front end milling trains are same
To 0.4 times that First front end milling train sizing reduction during rolling is target sizing reduction, second front end milling train is completed more than target tube reducing
Amount.
In summary：A kind of cold-strip steel coiled sheet production technology provided by the invention, entire rolling mill practice is succinctly smooth, surely
Fixed efficient, mill speed is fast, and Plate break phenomenon is low, reduces the influence that steel plate crawls to cold-rolling of steel plate, substantially increases cold rolling
The process velocity and rolling quality of production line.
Finally it should be noted that：The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention,
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used
To modify to the technical solution recorded in foregoing embodiments or carry out equivalent replacement to which part technical characteristic,
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in the present invention's
Within protection domain.
Claims (6)
1. a kind of cold-strip steel coiled sheet production technology, it is characterised in that：Include the following steps：
S1, the molten steel obtained after smelting is subjected to sheet billet continuous casting in the presence of covering slag using conticaster, casting blank solidification process is adopted
With two device for cooling, two device for cooling is interior to be equipped with intensive guide roller, to control the bulge problem of strand, controls C in molten steel
Content ＜ 0.09wt%, Mn content are 0.15 to 0.20wt%；
S2, the slab after continuous casting in S1 is pulled out strand by withdrawal straightening machine, for prevent base bulge and reduce aligning when strand in
The distortional stress in portion, the withdrawal straightening machine at least needs 20 pairs of pulling-straightening rollers, and is designed to multipoint straightening or continuous straightening；
S3, the strand pulled out in S2 via withdrawal straightening machine will be transported to heating furnace and heated, and come out of the stove, cast after being added to required temperature
The tapping temperature of base is 1250 to 1300 DEG C；Strand enters roughing mill and back and forth rolls 3-4 passages, obtains intermediate base, and intermediate base enters
Finishing mill continuously rolls 7-8 passages, obtains finished product；
S4, the step S3 finished products obtained are entered into coiling machine rolled, obtains hot-rolled steel coiled sheet；
S5, the hot rolled steel plate obtained in S4 volume is cooled down, carries out rolling below recrystallization temperature, in end milling train
Upstream is at least arranged in series two front end milling trains, and the rolling direction of the front end milling train is vertical with the rolling direction of end milling train,
The rolling direction of front end milling train is identical, and the end milling train is active milling train, and the front end milling train is passive milling train, is set
Two front end milling trains；
S6, the temperature range that the terminal part of the steel plate coiled material obtained in S5 is heated to 50 DEG C~350 DEG C, make it into and batch
Machine rolled obtains cold-rolled steel coiled sheet.
2. a kind of cold-strip steel coiled sheet production technology described in claim 1, it is characterised in that：Conticaster breaks in the step S1
Face is 1600mm × 230mm, and casting machine conical degree of crystallizer is 1.1 to 1.4%/m, and casting machine pulling rate is 1.0 to 1.4m/min.
3. a kind of cold-strip steel coiled sheet production technology described in claim 1, it is characterised in that：The outlet of the roller mill rack
The speed at place is measured by means of laser velocimeter.
4. a kind of cold-strip steel coiled sheet production technology described in claim 1, it is characterised in that：Roughing opens in the step S3
It is 1240-1285 DEG C to roll temperature, and roughing extreme trace time temperature is 1175-1195 DEG C, and the start rolling temperature of finish rolling is 1150-1175 DEG C,
Finish rolling extreme trace time temperature is 920-950 DEG C.
5. a kind of cold-strip steel coiled sheet production technology described in claim 1, it is characterised in that：In the step S3 in finishing mill
Equipped with oily milling train, the oil milling train includes feed unit, ROLLING OIL injection unit and discharger, and feed unit is to the finish rolling
The ROLLING OIL of the roll injection of machine；ROLLING OIL injection unit is connect with the feed unit, sprays the rolling to the roll
Oil；Discharger is arranged on the ROLLING OIL injection unit, and the oil milling train further includes control unit, the control unit and the row
Go out device connection, control the discharge of the ROLLING OIL.
6. a kind of cold-strip steel coiled sheet production technology described in claim 1, it is characterised in that：Cold-roller in the step S5
The mill speed of skill is between 900-2000 ms/min, First front end milling train when described two front end milling trains roll in the same direction
Sizing reduction is 0.4 times of target sizing reduction, and second front end milling train completes target tube reducing surplus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711454349.2A CN108160740A (en) | 2017-12-28 | 2017-12-28 | A kind of cold-strip steel coiled sheet production technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711454349.2A CN108160740A (en) | 2017-12-28 | 2017-12-28 | A kind of cold-strip steel coiled sheet production technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108160740A true CN108160740A (en) | 2018-06-15 |
Family
ID=62518972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711454349.2A Pending CN108160740A (en) | 2017-12-28 | 2017-12-28 | A kind of cold-strip steel coiled sheet production technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108160740A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112474834A (en) * | 2020-10-30 | 2021-03-12 | 王克宇 | Cold-rolled strip steel production process |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101945714A (en) * | 2008-02-13 | 2011-01-12 | 新日本制铁株式会社 | Method for cold-rolling of steel plate and cold-rolling facility |
| CN104759468A (en) * | 2014-01-03 | 2015-07-08 | 安阳合力创科冶金新技术研发股份有限公司 | Cold rolling unit and cold rolling process |
| CN105562432A (en) * | 2014-10-30 | 2016-05-11 | Posco公司 | Hot rolling apparatus and hot rolling method |
| CN105834212A (en) * | 2016-05-16 | 2016-08-10 | 宋义 | Production technology for hot-rolled coiled plates and hot-rolled coiled plates |
| CN106513605A (en) * | 2016-11-16 | 2017-03-22 | 攀钢集团攀枝花钢铁研究院有限公司 | Method for improving low-carbon aluminum killed steel cold-rolled plate coil peeling |
-
2017
- 2017-12-28 CN CN201711454349.2A patent/CN108160740A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101945714A (en) * | 2008-02-13 | 2011-01-12 | 新日本制铁株式会社 | Method for cold-rolling of steel plate and cold-rolling facility |
| CN104759468A (en) * | 2014-01-03 | 2015-07-08 | 安阳合力创科冶金新技术研发股份有限公司 | Cold rolling unit and cold rolling process |
| CN105562432A (en) * | 2014-10-30 | 2016-05-11 | Posco公司 | Hot rolling apparatus and hot rolling method |
| CN105834212A (en) * | 2016-05-16 | 2016-08-10 | 宋义 | Production technology for hot-rolled coiled plates and hot-rolled coiled plates |
| CN106513605A (en) * | 2016-11-16 | 2017-03-22 | 攀钢集团攀枝花钢铁研究院有限公司 | Method for improving low-carbon aluminum killed steel cold-rolled plate coil peeling |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112474834A (en) * | 2020-10-30 | 2021-03-12 | 王克宇 | Cold-rolled strip steel production process |
| CN112474834B (en) * | 2020-10-30 | 2022-06-07 | 临沂汇力机械有限公司 | Cold-rolled strip steel production process |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101358634B1 (en) | Method for producing a hot-rolled steel strip and combined casting and rolling installation for carrying out the method | |
| US8408035B2 (en) | Method of and apparatus for hot rolling a thin silicon-steel workpiece into sheet steel | |
| US5832985A (en) | Process and device for producing a steel strip with the properties of a cold-rolled product | |
| KR100960096B1 (en) | A continuous casting and rolling method for medium plate | |
| US8137485B2 (en) | Process and device for producing strips of silicon steel or multiphase steel | |
| US5307864A (en) | Method and system for continuously producing flat steel product by the continuous casting method | |
| KR101809108B1 (en) | Method and plant for the energy-efficient production of hot steel strip | |
| CN110116135B (en) | Endless rolling production method for rod and wire products | |
| US6527882B1 (en) | Method and installation for the continuous production of hot-rolled, thin flat products | |
| CN101391264B (en) | Technique method of thin middle plate continuous casting and rolling production | |
| CN110479762B (en) | Hot-rolled strip steel full-continuous production device and method for ferrite rolling | |
| US5630467A (en) | Thin slab continuous casting machine and method | |
| ITUD20100091A1 (en) | PROCEDURE AND PLANT FOR THE PRODUCTION OF FLAT LAMINATED PRODUCTS | |
| US9186711B2 (en) | Rolling line and relative method | |
| CN1972764A (en) | Process and system for manufacturing metal strips and sheets without solution of continuity between continuous casting and rolling | |
| CN106269871B (en) | A kind of method for using increasing speed rolling technique productions thickness≤2.0mm low-intensity strips in CSP producing lines | |
| CN109922904B (en) | Casting-rolling-cladding plant and method for continuously producing hot-rolled finished strip | |
| CN103079719B (en) | For the method manufacturing strip steel by continuous rolling | |
| TWI615210B (en) | Installation based on the csp concept and method for operating such an installation | |
| JP5577655B2 (en) | Hot-rolled steel sheet cooling equipment and cooling method | |
| KR101514625B1 (en) | Method for continuous austenitic rolling of a preliminary strip, which is produced in a continuous casting process, and combined casting and rolling facility for performing the method | |
| JPWO2011001935A1 (en) | Hot rolled steel sheet cooling apparatus, cooling method, manufacturing apparatus, and manufacturing method | |
| CN108160740A (en) | A kind of cold-strip steel coiled sheet production technology | |
| CN109570235A (en) | A kind of strip production technology | |
| CN109092910B (en) | Electromagnetic induction coil compensation heating equipment and method for improving rolled material quality |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180615 |
|
| WD01 | Invention patent application deemed withdrawn after publication |