EP2566989A1 - Verfahren zum warmwalzen von stahlbändern und warmwalzstrasse - Google Patents
Verfahren zum warmwalzen von stahlbändern und warmwalzstrasseInfo
- Publication number
- EP2566989A1 EP2566989A1 EP11715225A EP11715225A EP2566989A1 EP 2566989 A1 EP2566989 A1 EP 2566989A1 EP 11715225 A EP11715225 A EP 11715225A EP 11715225 A EP11715225 A EP 11715225A EP 2566989 A1 EP2566989 A1 EP 2566989A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- rolling
- cooling
- steel strip
- stand
- cooling section
- 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.)
- Granted
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 107
- 239000010959 steel Substances 0.000 title claims abstract description 107
- 238000005098 hot rolling Methods 0.000 title claims abstract description 54
- 238000000034 method Methods 0.000 title claims abstract description 30
- 230000008569 process Effects 0.000 title abstract description 5
- 238000001816 cooling Methods 0.000 claims abstract description 127
- 239000007788 liquid Substances 0.000 claims abstract description 25
- 229910001566 austenite Inorganic materials 0.000 claims abstract description 15
- 238000005096 rolling process Methods 0.000 claims description 102
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 230000001419 dependent effect Effects 0.000 claims description 7
- 238000009749 continuous casting Methods 0.000 claims description 6
- 230000009467 reduction Effects 0.000 claims description 5
- 239000002131 composite material Substances 0.000 claims description 4
- 239000000110 cooling liquid Substances 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 4
- 239000011265 semifinished product Substances 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 3
- 229910000859 α-Fe Inorganic materials 0.000 description 12
- 239000000203 mixture Substances 0.000 description 4
- 239000007921 spray Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000005266 casting Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 230000009466 transformation Effects 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 102000003712 Complement factor B Human genes 0.000 description 1
- 108090000056 Complement factor B Proteins 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- QMQXDJATSGGYDR-UHFFFAOYSA-N methylidyneiron Chemical compound [C].[Fe] QMQXDJATSGGYDR-UHFFFAOYSA-N 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
- B21B1/24—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a continuous or semi-continuous process
- B21B1/26—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a continuous or semi-continuous process by hot-rolling, e.g. Steckel hot mill
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/04—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing
- C21D8/0421—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing characterised by the working steps
- C21D8/0426—Hot rolling
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D10/00—Modifying the physical properties by methods other than heat treatment or deformation
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D11/00—Process control or regulation for heat treatments
- C21D11/005—Process control or regulation for heat treatments for cooling
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/74—Temperature control, e.g. by cooling or heating the rolls or the product
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
- C21D8/0226—Hot rolling
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/46—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/46—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
- C21D9/48—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals deep-drawing sheets
Definitions
- the invention relates to a method for hot rolling of steel strips in a plurality of successive stands, wherein the steel strips first in the austenitic state and then, after an intensive interstitial liquid cooling, in the ferritic state in one or more
- Rolling mills are finished to the final thickness, and a corresponding hot rolling mill.
- Hot rolling is used when the rolling stock has a temperature above its recrystallization temperature during rolling. For steel, this is the range above about 780 ° C, usually is rolled at temperatures up to 1200 ° C warm.
- the metal is usually in the austenitic state, where the iron atoms are arranged cubic face centered. Forming degrees, ie the ratio of initial thickness to input thickness, of up to 1: 200 are possible here: for example, in a hot strip mill starting from a slab thickness of typically 240 mm, final thicknesses of 1.2 to 15 mm can be achieved. This is referred to as rolling in the austenitic state, when both the initial rolling and the final rolling temperature are in the austenitic region of the respective steel.
- the austenite area of a steel depends on the steel composition, but is usually above 800 ° C.
- Austenite area falls out. This can only be countered by the fact that the rolling stock already reaches the hot rolling stands with reduced thickness, ie was either reduced accordingly in a roughing mill or in a - decoupled - Dünnbandg discernstrom is produced because the capacity of a Thin strip casting plant usually is not sufficient for a coupled operation.
- the reduction in the thickness of the rolling stock before hot rolling thus leads to significant capacity losses, the direct coupling of the hot rolling stands to a continuous casting or strip casting plant with high capacity for carrying out the so-called direct coupled or endless operation is usually not possible.
- steel can also be hot rolled in the ferritic state.
- the iron atoms are cubic body centered, the steel is softer than in the austenitic state and can be easily deformed.
- the temperature of the steel in the ferritic state (ferrite region) is lower than in the austenite region, less rolling force is needed to reshape the steel. This is exploited to achieve even lower thicknesses and / or even greater widths in the finished steel strip.
- the low reshaping resistance of the ferrite is preferably limited to a relatively narrow temperature range of 100-150 ° C below the temperature where the complete equilibrium phase transition from austenite to ferrite occurs.
- This equilibrium austenite limit temperature of the steels of interest here, depending on the composition of the steel is between 800 and 900 ° C and is known for most steel compositions. It is in the iron-carbon diagram, where on the x-axis
- Carbon content in weight percent and on the y-axis the temperature is plotted, as a line between the points G and P can be seen. Above the G-P line, both austenite (so-called gamma mixed crystals) and ferrite (so-called alpha mixed crystals) are present, below the line G-P, ie below the equilibrium austenite limit temperature, only more ferrite (alpha mixed crystals) is present.
- the inventive method is only well applicable if the final thickness is less than 3 mm, because only then in the cooling section sufficient cooling (the entire band cross-section) can take place.
- Cooling section is only 0.5 m long, significantly higher amounts of water are applied to the shorter cooling section, namely both the top and on the
- the inventive method can be used both in regulation and in
- Pre-control of the outlet temperature of the steel strip from the last stand before the liquid cooling can be used. Controlling the temperature requires that an actual value be measured, which is often not the case because the temperature is calculated using models. For pre-control, the outlet temperature is determined using other known data, such as process models.
- amount of water according to the invention can be with appropriate control of the outlet temperature from the last stand before cooling, which is usually carried out by the so-called level 2 control of the hot rolling mill, achieve an intermediate cooling of the steel strip of more than 30 K to more than 100 K, so that full-ferrite structure of the steel strip is ensured before it enters the next mill, where then ferritic is rolled.
- the process according to the invention can be used particularly well if the width-specific throughput through the rolling stands is less than 12 mm m / s, preferably less than 9.5 mm m / s.
- the throughput or volume flow is often specified in the rolling technique as a volume-specific volume flow, ie as a volume flow per unit width (1 m), and can be represented as the product of thickness of a band (usually in mm) and belt speed (usually in m / s).
- width-specific throughput should not be too high, say be less than 15 mm m / s, more preferably less than 12 mm m / s, e.g. smaller 9.5 mm m / s.
- the rolling stock ie the steel strip
- the cooling must therefore ensure that in the steel strip after cooling and before entering the following rolling stands for ferritic rolling almost exclusively ferritic microstructure, ie at least 90% ferritic microstructure, preferably at least 95% ferritic microstructure, is present.
- the volume specific volume flow and the inlet temperature of the steel in the hot rolling line, which form the rolling stands for hot rolling intensive cooling between at least two rolling stands is necessary to ensure the transformation into almost exclusively ferritic microstructure in which the average cooling rate T of the steel strip should be at least 40 K s, better still more than 60 K s, preferably 90 K / s, within the rolling stand spacing (between the last rolling stand before and the first rolling stand after cooling).
- the required cooling rate T [K / s] is also dependent on the outlet temperature of the steel strip after the roll stand before cooling, of the
- the cooling rate T to be achieved within the cooling section length Lc can be calculated as follows:
- T ' A * B * v m / L c
- the factor A depends on the average outlet temperature Tm of the steel strip from the last stand before cooling and its distance to the equilibrium austenite limit temperature Ta and is preferably determined as follows:
- Lc stands for the length of the cooling section within which the cooling rate T [K / s] can be achieved.
- the stand spacing between the last roll stand before and the first roll stand after cooling can also be used, then T becomes the average cooling rate between the two roll stands.
- the dimensionless factor B reflects the iron content of the steel strip and is between 0.95 and about 1.95, considering steels with> 98% Fe, where Fe denotes the iron content of the steel in% of the mass:
- the temperature difference Tm-Ta (in the factor A) should not be greater than 70 K, more preferably less than 50 K, preferably less than 25 K. This can be ensured, for example, by the so-called Level 2 Automation, which controls the hot rolling mill.
- cooling only takes place between the penultimate and last roll stand of a hot rolling mill, that is to say that the steel strip is still rolled in the austenitic state on the penultimate roll stand, then the ferrite takes place through the cooling and in the last
- Rolling mill the steel strip is rolled in the ferritic state.
- cooling takes place only between the third last and penultimate roll stand, so that the steel strip is rolled in the austenitic state on the third to last rolling stand, then takes place by the cooling ferritization and in the penultimate and last rolling mill, the steel strip is rolled in the ferritic state ,
- This has the advantage that the penultimate rolling stand in case of insufficient cooling by the upstream
- Cooling section can be opened, so it is not rolled with this. Insufficient cooling may occur, for example, if individual cooling devices, such as nozzles, fail or if the speed of the steel strip or mass flow rate is higher than expected.
- the cooling section consists of at least two rows of spray nozzles per band side, wherein a row of nozzles results in a minimum length of the cooling section - in the sense of the present invention - of 350 mm.
- the austenite ferrite conversion possible useful when the cooling section is located closer to the previous than the following rolling stand, in particular in connection with a relatively short cooling distance of 5 and 30% of the distance between the preceding and following mill stand.
- the cooling section should preferably be arranged at least 20% closer to the preceding than to the following rolling stand.
- the method according to the invention is best used in installations where the distance between successive rolling stands between which the cooling takes place is between 3.5 and 7 m. At these intervals, it is certainly possible that after cooling of the steel strip still enough time for the most complete transformation of the structure into ferrite takes place.
- the invention is also advantageous for steel strips with a width between 800 and 2200 mm applicable.
- the strip thickness of the steel strip before cooling is generally 1, 2 to 5 mm, in particular 1, 5 to 3.5 mm, preferably 1, 8 to 3.5 mm.
- the steel strip can be finish rolled from continuously cast semi-finished products in directly successive work steps. So it can be a direct coupling of
- Hot rolling mill to a continuous casting plant, so that steel strips with a strip thickness of less than 3 mm can be produced in a continuous process.
- the steel strip could first be rough rolled in one to four steps, then heated again to at least 1 100 ° C and then finished rolled in three to five steps.
- other devices such as shears, ovens, cooling systems,
- the hot rolling mill can also consist of more than five rolling stands, so that the steel strip can be finish rolled in more than five steps.
- the invention can also be applied to a hot rolling plant arranged downstream of a strip casting plant.
- a multi-stand hot rolling mill according to the invention has a cooling section between the two successive rolling stands to the two-sided
- the cooling section is the route on which leaking liquid impinges on the steel strip.
- Cooling section between penultimate and last mill stand and / or third last and penultimate roll stand be arranged.
- the length Lc of the cooling section may be between 5 and 30% of the distance between the preceding and following stand, in particular they consist of only one each over the width of arranged nozzle row per strip surface (ie one row of nozzles above as well as below).
- the cooling section can be arranged closer to the preceding than to the following rolling stand, in particular by at least 20% closer to the preceding than to the following rolling stand.
- the distance between successive rolling stands, between which a cooling section is arranged, should be best between 3.5 and 7 m.
- the width of the hot rolling line and the cooling section will usually be designed for a bandwidth of the steel strip between 800 and 2200 mm.
- the hot rolling mill may be connected to a continuous casting plant in such a way that the steel strip of continuously cast semi-finished products can be finish rolled in directly successive work steps. For example, this can result in a composite rolling mill with a hot rolling line according to the invention, wherein the composite rolling mill has a roughing mill with one to four rolling stands, a heater for heating the steel strip from the
- the hot rolling mill may include more than five scaffolding.
- Hot rolling mill can also be used at relatively low width
- the entire hot rolling process is more stable than conventional methods because an undetermined partial ferritic rolling is excluded at the last or penultimate pass.
- the invention will be explained by way of example with reference to a schematic figure.
- the figure shows the side view of a hot rolling mill with cooling section.
- the steel strip 3 enters at the left edge of the figure in the hot rolling mill, consisting of the rolling stands F1 to F5, with an inlet temperature of less than 1050 ° C, preferably less than 1020 ° C, such as a roughing, which is connected to a continuous casting.
- the temperature of the steel strip 3 refers to the averaged over the strip cross section average value of
- the steel strip 5 is rolled in the austenitic state, it leaves the rolling stand F3 with a typical strip thickness of less than 3 mm.
- the cooling section 1 has here on both sides of the band to a plurality of spray nozzles 2, which are arranged in at least one row of nozzles per band side, and has a length Lc of at least 350 mm.
- the distance LF3 between the third roll stand F3 and the beginning of the cooling section 1 is here only a fraction of the distance LF4 between the fourth rolling stand F4 and the end of the cooling section 1.
- the cooling section leads the steel strip 3 according to the invention both on the top and on the bottom of an inventive amount of water per minute and bandwidth in meters, whereby the steel strip 3 cools.
- the steel strip 3 Until the steel strip 3 enters the fourth rolling mill F4, an almost complete transformation of the microstructure into ferrite has taken place, so that the steel strip 3 is in the ferritic state is reduced in the fourth rolling mill.
- the steel strip 3 In the fifth rolling stand F5, the steel strip 3 is rolled in the ferritic state to its final thickness of less than 1, 5 mm.
- the amount of water applied on both sides will be between two and four times the value 284 / (Lc 1, 42 ) if the difference between the outlet temperature from the rolling stand F3 and the austenite boundary temperature is less than 50 K and the width-specific throughput is not too high is high, that is, for example, in the range of 5 to 12 mm m / s.
- spray nozzles are used for applying the cooling water, which are arranged in rows in the width direction of the steel strip. If only one row of nozzles is used, this corresponds to a model cooling section 1 with a length of about 350 mm. This results e.g. at an angle
- the length Lc of the cooling section is calculated from the distance between the first and last point of impact of the water jet Nozzle row plus the (nl) -fold mean distance between two rows of nozzles.
- austenitic rolling would take place in the first four rolling stands F1 to F4, while ferritic rolling would take place only after the most complete possible rolling
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT0075410A AT509707B1 (de) | 2010-05-04 | 2010-05-04 | Verfahren zum warmwalzen von stahlbändern und warmwalzstrasse |
PCT/EP2011/056086 WO2011138159A1 (de) | 2010-05-04 | 2011-04-18 | Verfahren zum warmwalzen von stahlbändern und warmwalzstrasse |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2566989A1 true EP2566989A1 (de) | 2013-03-13 |
EP2566989B1 EP2566989B1 (de) | 2014-02-26 |
Family
ID=44314219
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11715225.6A Revoked EP2566989B1 (de) | 2010-05-04 | 2011-04-18 | Verfahren zum warmwalzen von stahlbändern und warmwalzstrasse |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP2566989B1 (de) |
KR (1) | KR101506442B1 (de) |
CN (1) | CN102859009B (de) |
AT (1) | AT509707B1 (de) |
RU (1) | RU2526644C2 (de) |
WO (1) | WO2011138159A1 (de) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107661900B (zh) * | 2016-07-29 | 2019-03-29 | 宝山钢铁股份有限公司 | 一种热连轧机组生产双面不锈钢复合板的制造方法 |
CN108994081B (zh) * | 2018-06-25 | 2021-01-29 | 中冶赛迪工程技术股份有限公司 | 一种在esp生产线采用铁素体轧制生产低碳钢的方法 |
DE102019220033A1 (de) * | 2019-03-18 | 2020-09-24 | Sms Group Gmbh | Anlage und Verfahren zur Herstellung von metallischem Warmband |
CN110479762B (zh) * | 2019-08-15 | 2020-10-30 | 武汉钢铁有限公司 | 一种用于铁素体轧制的热轧带钢全连续生产装置及方法 |
EP3808466A1 (de) * | 2019-10-16 | 2021-04-21 | Primetals Technologies Germany GmbH | Kühleinrichtung mit kühlmittelstrahlen mit hohlem querschnitt |
DE102020214427A1 (de) | 2020-04-01 | 2021-10-07 | Sms Group Gmbh | Verfahren zum Herstellen eines Warmbandes mittels einer Gießwalzanlage |
CN113617836A (zh) * | 2021-06-21 | 2021-11-09 | 日照钢铁控股集团有限公司 | 一种低能耗无头铁素体带钢生产的轧制工艺 |
CN113305519B (zh) * | 2021-06-23 | 2022-02-01 | 泰安泰烁岩层控制科技有限公司 | 一种能够提高锚固效能的锚固杆的加工工艺及使用方法 |
CN115228929A (zh) * | 2022-07-29 | 2022-10-25 | 广西广盛新材料科技有限公司 | 带钢生产的温度控制方法、装置、终端设备及存储介质 |
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DE19531538A1 (de) * | 1995-08-25 | 1997-02-27 | Schloemann Siemag Ag | Warmbandproduktionsanlage für ferritisches Walzen und Verfahren zur Erzeugung von ferritischem Walzband |
DE19600990C2 (de) * | 1996-01-14 | 1997-12-18 | Thyssen Stahl Ag | Verfahren zum Warmwalzen von Stahlbändern |
DE19613718C1 (de) * | 1996-03-28 | 1997-10-23 | Mannesmann Ag | Verfahren und Anlage zur Herstellung von warmgewalztem Stahlband |
NL1003293C2 (nl) * | 1996-06-07 | 1997-12-10 | Hoogovens Staal Bv | Werkwijze en inrichting voor het vervaardigen van een stalen band. |
NL1007739C2 (nl) * | 1997-12-08 | 1999-06-09 | Hoogovens Staal Bv | Werkwijze en inrichting voor het vervaardigen van een stalen band met hoge sterkte. |
DE19632448A1 (de) * | 1996-08-05 | 1998-02-12 | Mannesmann Ag | Verfahren und Anlage zur Herstellung von Band aus niedriggekohlten und ultraniedriggekohlten Stählen |
RU2208485C2 (ru) * | 1996-12-19 | 2003-07-20 | Хоговенс Стал Б.В. | Способ получения стальной полосы или листа |
DE19712616C2 (de) * | 1997-03-26 | 1999-07-15 | Thyssen Stahl Ag | Warmwalzen von Stahlband |
JPH11120277A (ja) | 1997-10-09 | 1999-04-30 | Olympus Optical Co Ltd | コードイメージ記録装置 |
AR017713A1 (es) * | 1997-12-08 | 2001-09-12 | Hoogovens Staal Bv | Método para fabricar una cinta de acero de alta resistencia |
NL1007731C2 (nl) * | 1997-12-08 | 1999-06-09 | Hoogovens Staal Bv | Werkwijze en inrichting voor het vervaardigen van een ferritisch gewalste stalen band. |
DE19850253A1 (de) * | 1998-10-31 | 2000-05-04 | Schloemann Siemag Ag | Verfahren und System zur Regelung von Kühlstrecken |
IT1303873B1 (it) * | 1998-11-26 | 2001-03-01 | Demag Italimpianti Spa | Laminatoio a caldo per nastri sottili |
JP2000167615A (ja) * | 1998-12-03 | 2000-06-20 | Toshiba Corp | 巻取温度制御方法及び制御装置 |
BE1012462A3 (fr) * | 1999-02-05 | 2000-11-07 | Centre Rech Metallurgique | Procede de fabrication d'une bande d'acier laminee a chaud pour emboutissage. |
CN1329133C (zh) * | 2003-02-25 | 2007-08-01 | 西门子公司 | 尤其在轧制金属热轧带材的精轧机列中调节金属带温度的方法 |
DE502004003617D1 (de) * | 2003-02-25 | 2007-06-06 | Siemens Ag | Verfahren zur regelung der temperatur eines metallbandes, insbesondere in einer fertigstrasse zum walzen von metallwarmband |
RU2376106C2 (ru) * | 2005-04-07 | 2009-12-20 | Джованни Арведи | Способ и система для изготовления металлических полос и листов без нарушения непрерывности между непрерывным литьем и прокаткой |
ITRM20060262A1 (it) * | 2006-05-17 | 2007-11-18 | Ct Sviluppo Materiali Spa | Procedimento per la produzione di nastri di acciaio al carbonio a grano fine e nastri cosi ottenibili |
DE102007058709A1 (de) * | 2007-08-04 | 2009-02-05 | Sms Demag Ag | Verfahren zum Herstellen eines Bandes aus Stahl |
-
2010
- 2010-05-04 AT AT0075410A patent/AT509707B1/de not_active IP Right Cessation
-
2011
- 2011-04-18 KR KR1020127031797A patent/KR101506442B1/ko active IP Right Grant
- 2011-04-18 EP EP11715225.6A patent/EP2566989B1/de not_active Revoked
- 2011-04-18 RU RU2012151842/02A patent/RU2526644C2/ru active
- 2011-04-18 WO PCT/EP2011/056086 patent/WO2011138159A1/de active Application Filing
- 2011-04-18 CN CN201180022294.2A patent/CN102859009B/zh active Active
Non-Patent Citations (1)
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Also Published As
Publication number | Publication date |
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KR20130045862A (ko) | 2013-05-06 |
RU2012151842A (ru) | 2014-06-10 |
RU2526644C2 (ru) | 2014-08-27 |
KR101506442B1 (ko) | 2015-03-27 |
CN102859009B (zh) | 2014-08-27 |
CN102859009A (zh) | 2013-01-02 |
WO2011138159A1 (de) | 2011-11-10 |
EP2566989B1 (de) | 2014-02-26 |
AT509707B1 (de) | 2011-11-15 |
AT509707A4 (de) | 2011-11-15 |
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