CN201157843Y - System for producing wide strip by thin slab casting and rolling - Google Patents
System for producing wide strip by thin slab casting and rolling Download PDFInfo
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- CN201157843Y CN201157843Y CNU200720088929XU CN200720088929U CN201157843Y CN 201157843 Y CN201157843 Y CN 201157843Y CN U200720088929X U CNU200720088929X U CN U200720088929XU CN 200720088929 U CN200720088929 U CN 200720088929U CN 201157843 Y CN201157843 Y CN 201157843Y
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Abstract
The utility model discloses a system for producing wide strip steel by continuously casting and rolling sheet billet. The system mainly comprises a slab casting machine, a slab shearing mechanism, a roller hearth heating furnace, a slab electromagnetic induction heating furnace, a high pressure water descaling unit, a slab hot continuous mill, a telescopic flow cooling unit and a steel strip recoiling machine which are distributed by connecting in series. The slab electromagnetic induction heating furnace is combined by a rapid electromagnetic induction section and an electromagnetic induction holding section. The system has the production process that first, molten steel is continuously cast into sheet billet with the thickness of 50 mm to 90 mm; second, the sheet billet is performed with even heating, electromagnetic induction heating, surface descaling, hot continuous rolling, telescopic flow cooling and recoiling treatment; finally, qualified wide strip steel products are produced by controlling solid solution and separation action of carbon, nitrogen and sulfuret in steel through adjusting a technological parameter thereof. By adopting the system, the solid solution and the separation action of carbon, nitrogen and sulfuret in steel can be efficiently controlled, and hot continuous rolling wide strip steel products with high quality can be produced by low cost and flexible technique.
Description
Technical field
The utility model relates to the hot-strip production equipment, refers to a kind of system of CSP production wide flat steel particularly.
Technical background
At present, the method that iron and steel enterprise produces hot-strip mainly contains following two kinds: one, adopt heavy slab or the medium thin slab of thickness more than or equal to 120mm, and cool off-batch through heating-roughing-finish rolling-laminar flow, obtain band steel finished product, this is a traditional handicraft.The defective of traditional handicraft is its long flow path, equipment is many, investment is big, cost is high, but because it can be heated to raw material heavy slab or medium thin slab 1000～1350 ℃ scope, can control the solid solution of carbon in the steel, nitrogen, sulfide comparatively neatly and separate out behavior, thereby the variety range of its production is wider, particularly can the production deep-draw with products such as cold rolling base material, controlled rolling and controlled cooling steel grade such as pipe line steels.Its two, adopt thickness to be less than or equal to the sheet billet of 100mm, cool off-batch through soaking-finish rolling-laminar flow, obtain band steel finished product, this is an abbreviated system.Existing abbreviated system mainly contains CSP production line, UTSR production line and ISP production line etc.The soaking pit tapping temperature of CSP or UTSR production line and the start rolling temperature of continuous hot-rolling mill all have only 1150 ℃ a kind of, because the solid solubility temperature of carbon, nitrogen, sulfide generally will be higher than 1250 ℃ in the steel, and solid solution and to separate out be an opposite process, therefore this technology does not have the solid solution of carbon, nitrogen, sulfide in the flexible control steel and separates out the ability of behavior, produce and traditional handicraft hot-strip product identical in quality, need the raw material sheet billet that higher alloy content is arranged, thereby its production cost is higher.The sheet billet roughing that the ISP production line will not pass through soaking earlier becomes the thick made-up belt of 15～25mm, again made-up belt being carried out quick eddy-current heating handles, sheet billet does not have enough soaking times before roughing on the one hand, and the slab section temperature is extremely inhomogeneous, and the fractography after the roughing is also inhomogeneous; The made-up belt that 15～25mm is thick is too thin on the other hand, under the condition of quick eddy-current heating, can't realize that controlled rolling provide enough deformation rates for thick specification finished strip.As seen, since thin plate blank continuously casting and continuously rolling technology occurs,, on expanding, kind, made its application be subjected to very big restriction because of can not carbon, nitrogen, the sulfide that influence steel performance being control effectively though embodied in the advantage of lacking on the flow process low cost.How, become the difficult problem that the scientific research personnel is badly in need of solving not changing existing hot-rolled strip production line basically, not increasing the deficiency that overcomes above-mentioned traditional handicraft and abbreviated system under the situation of production cost.
Summary of the invention
The purpose of this utility model is exactly to provide a kind of CSP to produce the system of wide flat steel.Adopt this system to produce the hot continuous rolling wide flat steel, can effectively control the solid solution of carbon in the steel, nitrogen, sulfide and separate out shape for, produce high-quality belt steel product with flexible craft at lower cost.
For achieving the above object, the designed CSP of the utility model is produced the system of wide flat steel, comprises slab caster, slab shear, roller hearth type heating furnace, high pressure water descaling device, slab continuous hot-rolling mill, cooling facility for laminar flow and the steel band coiling machine of arranged in series successively and is arranged in cool water shower device between the slab continuous hot-rolling mill frame.Its special character is: arranged in series has the slab electromagnetic induction heating furnace between described roller hearth type heating furnace and the high pressure water descaling device, and described slab electromagnetic induction heating furnace is combined by the electromagnetic induction heating section of two sections adjustable power joints.What wherein be positioned at roller hearth type heating furnace one side is quick electromagnetic induction section, mainly adopts the great-power electromagnetic eddy-current heating, and sheet billet is rapidly heated at short notice to satisfactory beginning rolling temperature; What be positioned at high pressure water descaling device one side is the electromagnetic induction soaking zone, mainly adopts the small power electromagnetic induction heating, makes sheet billet keep it in setting-up time and begins rolling temperature, until entering next process.
For preventing and alleviating the upper and lower scale on surface of sheet billet and the covering slag residue is pressed in the sheet billet by roller hearth type heating furnace; arranged in series has water under high pressure to remove instrument between slab shear and roller hearth type heating furnace, can carry out the one-time surface de-scaling to it before sheet billet enters roller hearth type heating furnace and handle.
Be further to reduce the oxidational losses of sheet billet, on the great-power electromagnetic eddy-current heating section of described slab electromagnetic induction heating furnace and small power electromagnetic induction bringing-up section, be provided with the inert protective gas input unit.
The continuous processing step that the utility model is produced wide flat steel is as follows:
1) by slab caster, it is the sheet billet that 50～90mm, width satisfy customer requirements that qualified continuous casting of molten steel is become thickness, and this step can be saved the roughing operation, saves the rolling deformation energy consumption, makes carbon, nitrogen, the solid solution of sulfide part in the steel simultaneously, and part is separated out;
2) by the slab shear, the volume that the sheet billet that continuous casting is become needs by the user weighs or the size on-line shearing becomes fixed length;
3) by roller hearth type heating furnace, the sheet billet that cuts into fixed length is carried out equal heat treatment in length, width and three directions of thickness, the temperature of sheet billet is controlled in 980～1150 ℃ the scope, make carbon, nitrogen, sulfide in the steel continue solid solution or separate out;
4) adopt the slab electromagnetic induction heating furnace, sheet billet after the soaking is done further heat treatment in two kinds of situation: for the steel grade of beginning rolling temperature requirement in 980～1150 ℃ of scopes, keep the temperature 6～12min of its requirement by electromagnetic induction heating always, make carbon, nitrogen, sulfide in the steel keep original state; For the steel grade of beginning rolling temperature requirement in 1151～1350 ℃ of scopes, continue again to keep this temperature 5～10min to the temperature of its requirement by electromagnetic induction heating fast lifting in 1～2min, make the abundant solid solution of carbon, nitrogen, sulfide in the steel;
5) adopt high pressure water descaling device, the sheet billet after the electromagnetic induction heating is carried out high-pressure water descaling handle, remove the iron scale that sheet billet is produced in soaking and electromagnetic induction heating process;
6) adopt the slab continuous hot-rolling mill, the back sheet billet is handled in de-scaling carried out pair rolling and handle, rolling temperature is controlled in 980～1350 ℃ the scope, and finishing temperature is controlled in 750～980 ℃ the scope, sheet billet is rolled into the band steel of finished product required thickness; Can adopt ripe deformation rate distribution system in the operation of rolling, cooperate cool water shower device between frame, utilize in the steel solid solution or the carbon of having separated out, nitrogen, sulfide to control crystallization behavior again;
7) adopt cooling facility for laminar flow, the band steel that is rolled into trimmed size thickness is carried out conventional laminar flow cooling processing, it is cooled in desired 550～700 ℃ of scopes of coiling temperature; By the further behavior of separating out of carbon, nitrogen, sulfide in the steel after the controlled rolling of laminar flow cooling, for the variation of the crystal grain after phase transformation and the phase transformation provides condition;
8) by the steel band coiling machine, the strip coiling that is cooled to coiling temperature is become coil of strip.
Advantage of the present utility model is: in the production process of CSP, by roller hearth type heating furnace sheet billet evenly is heated to the beginning rolling temperature or is lower than a certain temperature that begins rolling temperature earlier, utilize the slab electromagnetic induction heating furnace efficient again, characteristic efficiently, keep the beginning rolling temperature of sheet billet or the sheet billet fast lifting is kept a period of time after the beginning rolling temperature, impel the carbon in the steel, nitrogen, sulfide is fully solid solution during this period of time, thereby avoided existing abbreviated system that the alloy content of raw material sheet billet is required height, the soaking temperature of sheet billet is low, sheet billet section temperature and fractography are inhomogeneous, the defective that deformation rate is not enough, it is long also to have overcome conventional process flow, equipment is many, investment is big, the deficiency that cost is high.Adopt system of the present utility model can effectively control the solid solution of carbon in the steel, nitrogen, sulfide and separate out behavior, can realize producing the kind that the conventional hot continuous rolling machine machine is produced with sheet bar process, as cold rolling mild steel, the rolling controlled and cooling controlled steel, cold rolling used with products such as orientation silicon steel substrates, and production cost is low, production technology is convenient flexibly, gained wide flat steel good product quality, and the steel product that CSP is produced are greatly expanded.
Description of drawings
Accompanying drawing is that a kind of CSP is produced the annexation schematic diagram between each equipment in the system of wide flat steel.
The specific embodiment
The system that CSP of the present utility model is produced wide flat steel below in conjunction with accompanying drawing is described in further detail:
CSP shown in the figure is produced the system of wide flat steel, and mainly slab caster 1, slab shear 2, the water under high pressure of finishing casting and rolling process by arranged in series successively removes instrument 5, roller hearth type heating furnace 3, slab electromagnetic induction heating furnace 4, high pressure water descaling device 6, slab continuous hot-rolling mill 7, cooling facility for laminar flow 9 and steel band coiling machine 10 and form.The length of roller hearth type heating furnace 3 is the shortest to be: heading-length+maximum monolithic sheet billet length.If furnace superintendent is too short, heating-up temperature uniformity variation then; If furnace superintendent is long, energy-saving effect variation then; Reasonably furnace superintendent can guarantee that sheet billet is even in length and width, thick three direction temperature, cuts down the consumption of energy to greatest extent.
Slab electromagnetic induction heating furnace 4 is combined by electromagnetic induction heating section 4a, the 4b of two sections adjustable power joints again, wherein: that be positioned at roller hearth type heating furnace 3 one sides is quick electromagnetic induction section 4a, and that be positioned at high pressure water descaling device 6 one sides is electromagnetic induction soaking zone 4b.Adjust the heating power (generally adopting high-power) of quick electromagnetic induction section 4a, can guarantee the temperature that sheet billet rises at short notice to be needed; Adjust the heating power (generally adopting small-power) of electromagnetic induction soaking zone 4b, can keep the temperature-resistant of sheet billet, and adjust the eddy-current heating time by the speed of service of control sheet billet.Be provided with the inert protective gas input unit on quick electromagnetic induction section 4a and the electromagnetic induction soaking zone 4b, with the oxidational losses on further minimizing sheet billet surface.
Be furnished with cool water shower device 8 between slab continuous hot-rolling mill 7 frames, can cooperate the sharing of load of slab continuous hot-rolling mill 7, the precipitation process of carbon, nitrogen, sulfide in the control steel.
The production process of the system of above-mentioned CSP production wide flat steel is as follows:
Embodiment 1:
Percentage meter C accounts for 0.08 by weight, Si accounts for 0.23, Mn accounts for 1.43, P accounts for 0.012, S accounts for 0.008, Nb accounts for 0.034 qualified molten steel with chemical analysis in the steel, and becoming thickness through slab caster 1 continuous casting is the sheet billet that 70mm, width are equal to or greater than 1250mm.This sheet billet is about 1000 ℃ from the temperature of slab caster 1 output, cuts into the long scale of 45m by slab shear 2.The sheet billet elder generation that cuts into scale is that the water under high pressure of 10～38Mpa is handled except that instrument 5 carries out de-scaling through hydraulic pressure, removes the iron scale and the covering slag residue on its upper and lower surface, to improve the surface quality of sheet billet.Sheet billet through de-scaling enters roller hearth type heating furnace 3 again, evenly is heated to 1150 ℃ on length, width and three directions of thickness.This moment, the size that can find carbon in the steel, nitride Nb (CN) was about 200～500nm by sampling test.
Then, sheet billet enters the slab electromagnetic induction heating furnace 4 of band inert protective gas input unit.Quick electromagnetic induction section 4a by wherein is rapidly heated to 1260 ℃ sheet billet with high-power heating in 1～2min, make carbon in the steel, nitrogen, sulfide reach its solid solubility temperature; Pass through electromagnetic induction soaking zone 4b wherein again, make sheet billet keep this temperature 5～10min, make carbon in the steel, nitrogen, sulfide in fully solid solution during this period of time with the small-power heating.Observe this moment, can find that testing sample can't see in the visual field, and carbon in the steel, nitride Nb (CN) solid solution fully are described.
Again, sheet billet is exported from slab electromagnetic induction heating furnace 4, through hydraulic pressure is the high pressure water descaling device 6 of 10～38Mpa, after the iron scale on its upper and lower surface removed for the last time, send into and carry out the hot rolling processing in the slab continuous hot-rolling mill 7, cooperate the cool water shower device 8 between frame, make rolling temperature since 1260 ℃ to 810 ℃ rolling finishing, sheet billet is rolled into the thick wide flat steel finished product of 8.9mm.In the operation of rolling, Nb in the steel (CN) is because fully solid solution when inductive electromagnetic heats, in the operation of rolling along with the reduction of temperature, Nb in the steel (CN) separates out with the form of small and dispersed, for crystallization again provides the condition of forming core, and the crystal grain that can hinder after the crystallization more too magnifies, thus refinement recrystal grain.
The temperature of output wide flat steel is about 810 ℃ from slab continuous hot-rolling mill 7, through cooling facility for laminar flow 9 it is cooled to 610 ℃, finishes from austenite to ferritic transformation.In this process, because austenite crystal fully refinement in the operation of rolling, thereby to ferritic transformation the time, can obtain tiny ferrite crystal grain.At last it is coiled into the coil of strip that needs weight or size by steel band coiling machine 10.
Experiment detects as can be known to the sample of rolling sequence: the carbon in the steel, nitride Nb (CN) fully separate out, and the size in the finished product is about 50～300nm, refinement austenite crystal, recrystallization process has been played good effect.To the detection of finished product coil of strip as can be known: its tensile strength reaches that 530Mpa, yield strength reach 420Mpa, grain size is the ASTM12 level.Illustrate adopt the utility model can effectively control the solid solution of carbon in the steel, nitrogen, sulfide and separate out shape for, produce high-quality hot continuous rolling wide flat steel product at lower cost.
Embodiment 2:
Percentage meter C accounts for 0.04 by weight, Si accounts for 0.02, Mn accounts for 0.20, P accounts for 0.010, S accounts for 0.013, Nb accounts for 0.034 with chemical analysis in the steel, Als accounts for 0.04 qualified molten steel, and becoming thickness through slab caster 1 continuous casting is the sheet billet that 70mm, width are equal to or greater than 1250mm.This sheet billet is about 1000 ℃ from the temperature of slab caster 1 output, cuts into the long scale of 45m by slab shear 2.The sheet billet elder generation that cuts into scale is that the water under high pressure of 10～38Mpa is handled except that instrument 5 carries out de-scaling through hydraulic pressure, removes the iron scale and the covering slag residue on its upper and lower surface, to improve the surface quality of sheet billet.Sheet billet through de-scaling enters roller hearth type heating furnace 3 again, evenly is heated to 1100 ℃ on length, width and three directions of thickness.This moment, the size that can find nitrogen in steel thing AlN was about 200～500nm by sampling test.
Then, sheet billet enters the slab electromagnetic induction heating furnace 4 of band inert protective gas input unit.Respond to section 4a by quick electromagnetic wherein earlier, in 1～2 minute, make sheet billet be warmed up to 1320 ℃ temperature, electromagnetic induction soaking zone 4b by wherein makes sheet billet keep temperature 6～10min of 1320 ℃ again, makes AlN in the sheet billet in fully solid solution during this period of time.Observe this moment, can find that testing sample can't see in the visual field, and AlN solid solution fully in the steel is described.
Again, sheet billet is exported from slab electromagnetic induction heating furnace 4, through hydraulic pressure is the high pressure water descaling device 6 of 10～38Mpa, after the iron scale on its upper and lower surface removed for the last time, send into and carry out the hot rolling processing in the slab continuous hot-rolling mill 7, cooperate the cool water shower device 8 between frame, make the rolling temperature of finishing be controlled at 890 ℃, sheet billet is rolled into the thick wide flat steel finished product of 2.75mm.Because rolling to finish temperature higher, AlN not free separating out in the operation of rolling is cooled to 550 ℃ through cooling facility for laminar flow 9 with wide flat steel in the steel, because chilling temperature is lower, AlN can not separate out in phase transition process in the steel.At last it is coiled into the coil of strip that needs weight or size by steel band coiling machine 10.
From the real-time detection of rolling sequence as can be known: the abundant solid solution of the AlN the steel, when rolling back laminar flow cooling, speed is very fast, and the AlN in the finished product also is solid-solubilized in the ferrite.Detect less than the AlN particle of separating out in the finished product.
Embodiment 3:
Percentage meter C accounts for 0.08 by weight, Si accounts for 0.23, Mn accounts for 1.43, P accounts for 0.012, S accounts for 0.008, Nb accounts for 0.034 qualified molten steel with chemical analysis in the steel, and becoming thickness through slab caster 1 continuous casting is the sheet billet that 70mm, width are equal to or greater than 1250mm.This sheet billet is about 1000 ℃ from the temperature of slab caster 1 output, cuts into the long scale of 45m by slab shear 2.The sheet billet elder generation that cuts into scale is that the water under high pressure of 10～38Mpa is handled except that instrument 5 carries out de-scaling through hydraulic pressure, removes the iron scale and the covering slag residue on its upper and lower surface, to improve the surface quality of sheet billet.Sheet billet through de-scaling enters roller hearth type heating furnace 3 again, evenly is heated to 1100 ℃ on length, width and three directions of thickness.This moment, the size that can find carbon in the steel, nitride Nb (CN) was about 200～500nm by sampling test.
Then, sheet billet enters the slab electromagnetic induction heating furnace 4 of band inert protective gas input unit.Regulate the watt level of quick electromagnetic induction section 4a and electromagnetic induction soaking zone 4b, keep sheet billet, make carbon in the steel, nitrogen, the solid solution of sulfide maintenance and can not separate out at rolling temperature 6～12min of 1100 ℃.Observe this moment, can find to test sample major part in the visual field and all can't see, and carbon in the steel, nitride Nb (CN) solid solution basically are described.
Again, sheet billet is exported from slab electromagnetic induction heating furnace 4, through hydraulic pressure is the high pressure water descaling device 6 of 10～38Mpa, after the iron scale on its upper and lower surface removed for the last time, send into and carry out the hot rolling processing in the slab continuous hot-rolling mill 7, cooperate the cool water shower device 8 between frame, make rolling temperature since 1100 ℃ to 800 ℃ rolling finishing, sheet billet is rolled into the thick wide flat steel finished product of 8.8mm.In the operation of rolling, Nb in the steel (CN) is because most of solid solution when inductive electromagnetic heats, in the operation of rolling along with the reduction of temperature, wherein a part of Nb (CN) can separate out with the form of small and dispersed, for crystallization again provides the condition of forming core, and the crystal grain that can hinder after the crystallization more too magnifies, thus also refinement recrystal grain.
The temperature of output wide flat steel is about 800 ℃ from slab continuous hot-rolling mill 7, through cooling facility for laminar flow 9 it is cooled to 590 ℃, finishes from austenite to ferritic transformation.At last it is coiled into the coil of strip that needs weight or size by steel band coiling machine 10.
Sample experiment to rolling sequence detects as can be known: the carbon in the steel, nitride Nb (CN) major part are separated out, and the size in the finished product is about 100～340nm.From to the detection of its finished product coil of strip as can be known: its tensile strength reaches that 500Mpa, yield strength reach 390Mpa, grain size is the ASTM10 level.
From the foregoing description 1～3 as can be known, CSP of the present utility model is produced the system of wide flat steel, be very suitable for beginning the steel grade of rolling temperature in 1151～1350 ℃ of scopes, can effectively control the solid solution of carbon in the steel, nitrogen, sulfide and separate out behavior, have fabulous effect.For the steel grade of beginning rolling temperature in 980～1150 ℃ of scopes, also has effect preferably.
Claims (3)
1. a CSP is produced the system of wide flat steel, comprise the slab caster of arranged in series (1) successively, slab shear (2), roller hearth type heating furnace (3), high pressure water descaling device (6), slab continuous hot-rolling mill (7), cooling facility for laminar flow (9) and steel band coiling machine (10), and be arranged in cool water shower device (8) between slab continuous hot-rolling mill (7) frame, it is characterized in that: arranged in series has slab electromagnetic induction heating furnace (4) between described roller hearth type heating furnace (3) and the high pressure water descaling device (6), described slab electromagnetic induction heating furnace (4) is by the electromagnetic induction heating section (4a of two sections adjustable power joints, 4b) combine, what wherein be positioned at roller hearth type heating furnace (3) one sides is quick electromagnetic induction section (4a), and that be positioned at high pressure water descaling device (6) one sides is electromagnetic induction soaking zone (4b).
2. CSP according to claim 1 is produced the system of wide flat steel, and it is characterized in that: arranged in series has water under high pressure to remove instrument (5) between described slab shear (2) and the roller hearth type heating furnace (3).
3. CSP according to claim 1 and 2 is produced the system of wide flat steel, it is characterized in that: be provided with the inert protective gas input unit on the quick electromagnetic induction section (4a) of described slab electromagnetic induction heating furnace (4) and the electromagnetic induction soaking zone (4b).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720088929XU CN201157843Y (en) | 2007-12-11 | 2007-12-11 | System for producing wide strip by thin slab casting and rolling |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720088929XU CN201157843Y (en) | 2007-12-11 | 2007-12-11 | System for producing wide strip by thin slab casting and rolling |
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| CN201157843Y true CN201157843Y (en) | 2008-12-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU200720088929XU Expired - Lifetime CN201157843Y (en) | 2007-12-11 | 2007-12-11 | System for producing wide strip by thin slab casting and rolling |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009076890A1 (en) * | 2007-12-11 | 2009-06-25 | Wuhan Iron and Steel (Group) Corp | Methode for producing wide flat steel by thin slab continuous casting and rolling and the system thereof |
| CN102517429A (en) * | 2011-12-26 | 2012-06-27 | 武汉钢铁(集团)公司 | Method for producing high-magnetic-induction oriented silicon steel by continuous casting and rolling of thin slab |
| CN102615114A (en) * | 2012-03-30 | 2012-08-01 | 南京钢铁股份有限公司 | Method for temperature-controlling and rolling ribbon steel for chain manufacture |
| CN102744254A (en) * | 2012-07-23 | 2012-10-24 | 中冶南方工程技术有限公司 | Production method of hot-rolling austenitic stainless steel strip steel |
| CN107735187A (en) * | 2015-06-04 | 2018-02-23 | 株式会社Posco | Continuously casting and rolling equipment and continuously casting and milling method |
| CN110191769A (en) * | 2017-01-24 | 2019-08-30 | 首要金属科技奥地利有限责任公司 | Casting and rolling installation and the method that workpiece is handled by this equipment |
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2007
- 2007-12-11 CN CNU200720088929XU patent/CN201157843Y/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009076890A1 (en) * | 2007-12-11 | 2009-06-25 | Wuhan Iron and Steel (Group) Corp | Methode for producing wide flat steel by thin slab continuous casting and rolling and the system thereof |
| CN101181718B (en) * | 2007-12-11 | 2010-06-02 | 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 |
| CN102517429A (en) * | 2011-12-26 | 2012-06-27 | 武汉钢铁(集团)公司 | Method for producing high-magnetic-induction oriented silicon steel by continuous casting and rolling of thin slab |
| CN102615114A (en) * | 2012-03-30 | 2012-08-01 | 南京钢铁股份有限公司 | Method for temperature-controlling and rolling ribbon steel for chain manufacture |
| CN102744254A (en) * | 2012-07-23 | 2012-10-24 | 中冶南方工程技术有限公司 | Production method of hot-rolling austenitic stainless steel strip steel |
| CN102744254B (en) * | 2012-07-23 | 2015-09-02 | 中冶南方工程技术有限公司 | Hot rolling austenic stainless steel belt steel production method |
| CN107735187A (en) * | 2015-06-04 | 2018-02-23 | 株式会社Posco | Continuously casting and rolling equipment and continuously casting and milling method |
| CN110191769A (en) * | 2017-01-24 | 2019-08-30 | 首要金属科技奥地利有限责任公司 | Casting and rolling installation and the method that workpiece is handled by this equipment |
| CN110191769B (en) * | 2017-01-24 | 2021-05-04 | 首要金属科技奥地利有限责任公司 | Casting and rolling installation and method for treating workpieces by means of such an installation |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20081203 Effective date of abandoning: 20071211 |