EP0885974B1 - Verfahren zum Walzen von Warmband in einer CSP-Anlage - Google Patents
Verfahren zum Walzen von Warmband in einer CSP-Anlage Download PDFInfo
- Publication number
- EP0885974B1 EP0885974B1 EP98110734A EP98110734A EP0885974B1 EP 0885974 B1 EP0885974 B1 EP 0885974B1 EP 98110734 A EP98110734 A EP 98110734A EP 98110734 A EP98110734 A EP 98110734A EP 0885974 B1 EP0885974 B1 EP 0885974B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- temperature
- rolling
- strip
- reshaping
- recrystallisation
- 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.)
- Expired - Lifetime
Links
- 238000005096 rolling process Methods 0.000 title claims description 37
- 238000000034 method Methods 0.000 title claims description 19
- 238000004519 manufacturing process Methods 0.000 title claims description 7
- 230000008569 process Effects 0.000 title description 7
- 238000001953 recrystallisation Methods 0.000 claims description 21
- 229910001566 austenite Inorganic materials 0.000 claims description 18
- 238000001816 cooling Methods 0.000 claims description 15
- 230000000930 thermomechanical effect Effects 0.000 claims description 10
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 229910001563 bainite Inorganic materials 0.000 claims description 3
- 230000008859 change Effects 0.000 claims description 3
- 238000007493 shaping process Methods 0.000 claims description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 2
- 229910052758 niobium Inorganic materials 0.000 claims description 2
- 239000010955 niobium Substances 0.000 claims description 2
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 claims description 2
- 230000003068 static effect Effects 0.000 claims description 2
- 230000001960 triggered effect Effects 0.000 claims description 2
- 229910052720 vanadium Inorganic materials 0.000 claims description 2
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 claims description 2
- 238000005275 alloying Methods 0.000 claims 1
- 239000010936 titanium Substances 0.000 claims 1
- 229910052719 titanium Inorganic materials 0.000 claims 1
- 230000009466 transformation Effects 0.000 description 11
- 239000000463 material Substances 0.000 description 6
- 230000009467 reduction Effects 0.000 description 5
- 229910000859 α-Fe Inorganic materials 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 238000005266 casting Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 238000003303 reheating Methods 0.000 description 2
- 229910000746 Structural steel Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 244000052616 bacterial pathogen Species 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000003746 solid phase reaction Methods 0.000 description 1
- 238000010671 solid-state reaction Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
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
- C21D8/021—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips involving a particular fabrication or treatment of ingot or slab
- C21D8/0215—Rapid solidification; Thin strip casting
-
- 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
-
- 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
- B21B1/466—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 non-continuous process, i.e. the cast being cut before rolling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
- B21B2013/003—Inactive rolling stands
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2201/00—Special rolling modes
- B21B2201/06—Thermomechanical rolling
-
- 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
-
- 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
- B21B37/76—Cooling control on the run-out table
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B39/006—Pinch roll sets
Definitions
- the invention relates to a method for rolling hot wide strip from continuously cast thin slabs of ferritic-pearlitic micro-alloyed Structural steels with a micro alloy with vanadium and / or with niobium and / or with Titan in a CSP plant, whereby the cast slab strand, divided into rolling lengths, fed to a multi-stand CSP rolling mill via a compensating furnace and rolled out there continuously to form hot wide strip in a cooling section is cooled and coiled.
- EP 05 95 282 A1 describes a process for the production of hot-rolled steel strip from continuously cast material, preferably Thin slabs with one step at a time in a heat CSP method known, first of all leaving a compensating furnace Thin slabs after the first roughing pass in a roughing mill to temperatures be heated above 1150 ° C.
- the roughing mill is a recrystallization zone with, for example, a winding device and downstream of an unwinding device in which possible material-specific longer dwell time recrystallizes the rolling stock, see above that unconsolidated relaxed material is available for the finishing train.
- the pre-rolled strip is cooled so that the temperature for the first Stitch in the finishing train according to the necessary temperature profile can be optimally adjusted in the finishing train for all steel grades. It follows then finish rolling in the finishing train.
- thermomechanical forming in contrast to normalizing forming, in which the final forming in the area the normalizing temperature with complete recrystallization of austenite takes place, temperature ranges for one Targeted forming rate observed, at which the austenite is not or not substantially recrystallized, d. H. In any case lies before the actual thermomechanical treatment of the Rolled goods an austenite structure that either no or only small proportions of germs or structural components of the contains lower temperature resistant phase.
- the setting of this initial structure can be immediate from the casting heat or in a preheating furnace from Room temperature or an intermediate temperature from.
- the forming of the rolling stock begins in the temperature range of the stable austenite and is continued until just above the A r3 temperature.
- thermomechanical rolling Temperature range To be the cheapest for thermomechanical rolling Temperature range to come, the piercing temperature of the Rolled goods depending on the desired degree of forming fixed.
- thermomechanical treatment Use of plastic deformation not only for manufacturing a defined product geometry, but especially for Setting a desired real structure and thus for Guarantee of defined material properties, but not recrystallized austenite to polymorphic gamma (gamma) - aLpha ( ⁇ ) conversion comes (in the normalizing Austenite is already recrystallized).
- the first shaping is carried out at a temperature above the recrystallization stop temperature (T R ), so that a complete recrystallization of the cast structure takes place during and / or after this first shaping.
- the recrystallization can take place dynamically and / or metadynamically and / or statically.
- the next roll stand opened so that to the next but one roll stand, in which then the second forming is done, enough time to Available.
- the opening of the roll stand closes his Use as a driver is not enough.
- the further forming in the last rolling stands of the CSP rolling mill then takes place at temperatures below the recrystallization stop temperature (TR) in order to solidify the austenite before its polymorphic transformation.
- TR recrystallization stop temperature
- the austenite-hardening forming should not be less than 30%.
- the finish rolling temperature is close to the A r3 temperature.
- the polymorphic transformation of the austenite then takes place during the final cooling in, for example, a laminar cooling section at a temperature which lies between the A r3 temperature (temperature of the austenite-ferrite transformation) and the B S temperature (bainite starting temperature).
- the second forming which may only be carried out in the third roll stand, can preferably be used to initiate a second recrystallization cycle, which leads to further structural refinement and structural homogenization before the forming is carried out again.
- the subsequent mill stand can also be opened, which can then also be used as a driver if required.
- the temperature in this second transformation is also above the T R temperature.
- a plant for carrying out the method of the invention consists of a CSP plant in which cast thin slabs in the Direct use (without intermediate cooling and subsequent Reheating) in a multi-stand CSP mill be reshaped, and in which a controlled Microstructure development in the CSP rolling mill, in the cooling section and in the reel to achieve optimal mechanical Properties on hot broadband is possible, in particular between the first and the second forming as well as if necessary also between the second and third forming one for a complete recrystallization required variable Period is adjustable.
- a CSP system is shown in the an approximately 6 mm thick hot strip made of high-strength structural steel is produced by thermomechanical rolling.
- the first forming is carried out with a stitch reduction of 50% in the first roll stand (4) at a forming temperature of 1080 ° C carried out.
- second roll stand (5) opened and serves only as Driver.
- the second forming is then carried out in the third roll stand (6) a stitch reduction of 40% at a forming temperature of 1030 ° C carried out. Since here the transformation to another Recrystallization is used, the following is fourth Roll stand (7) also opened and only serves as a driver.
- the hot wide strip is in a laminar cooling section (11) cooled to 600 ° C (reel temperature) and in one Underfloor reel system (12) wound into a bundle.
- the corresponding temperature ranges are shown in the drawing figure for the individual process steps.
- the time period (I) between the first and the second forming serves for a first recrystallization phase, the temperature T being greater than the T R temperature.
- the time period (II) between the second forming and the third forming serves the second recrystallization phase with a temperature T that is also greater than the T R temperature.
- the period of time (III) from the third transformation until the last transformation is used for solidification of the austenite at a temperature T between the T R temperature, and the A r3 temperature.
- the period (IV) after the last forming in which cooling is used serves for the polymorphic transformation of the austenite.
- the temperature T is between the A r3 temperature and the B S temperature.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Metal Rolling (AREA)
- Heat Treatment Of Steel (AREA)
- Insulated Metal Substrates For Printed Circuits (AREA)
Description
- Schmelze (L) → Ferrit (δ) → Austenit A1 (gamma) →
- → Ferrit (α) → Austenit A2 (gamma)
- Schmelze (L) → Ferrit (δ) → Austenit A1 (gamma)
- in die Fertigstraße eines konventionellen Walzwerkes läuft eine in der Vorstraße vorgewalzte (plastisch deformierte) Bramme mit rekristallisiertem Gefüge ein,
- in die CSP-Fertigstraße wird die Dünnbramme mit Gussgefüge eingeführt,
- die Oberflächenbeschaffenheit einer CSP-Dünnbramme unterscheidet sich deutlich von einer vorgewalzten Bramme (beispielsweise durch ihre Topologie).
- unterschiedliche Beweglichkeit der Großwinkelgrenzen,
- unterschiedliches Mischkristall- und Ausscheidungsverhalten,
- unterschiedlicher Diffusionsmechanismus und -kinetik durch den unterschiedlichen Charakter der Grenzflächen und chemischen Inhomogenitäten, die gleichfalls bei der Einstellung der Verfahrensparameter zu beachten sind.
- dritte Umformung im fünften Walzgerüst (8) mit einer Stichabnahme von 30 % bei einer Umformtemperatur von 900 °C,
- vierte Umformung im sechsten Walzgerüst (9) mit einer Stichabnahme von 25 % bei einer Umformtemperatur von 840 °C,
- fünfte Umformung im siebten Walzgerüst (10) mit einer Stichabnahme von 15 % bei einer Umformtemperatur von 800 °C.
Claims (4)
- Verfahren zum Walzen von Warmbreitband aus stranggegossenen Dünnbrammen (13) aus ferritisch-perlitisch mikrolegierten Baustählen mit einer Mikrolegierung mit Vanadium und/oder mit Niob und/oder mit Titan in einer CSP-Anlage, wobei der gegossene Brammenstrang (13), geteilt in Walzlängen, über einen Ausgleichsofen (3) einer mehrgerüstigen CSP-Walzstraße (4 - 10), in der mehrere Walzgerüste ohne Vorgerüst unmittelbar hintereinander ohne eine zwischengeschaltete thermische Behandlungsvorrichtung angeordnet sind, mit Gussgefüge zugeführt und dort kontinuierlich zu Warmbreitband ausgewalzt, in einer Kühlstrecke (11) gekühlt und zu Bunden gehaspelt (12) wird, wobei zur Erzielung optimaler mechanischer Eigenschaften am Warmbreitband durch thermo-mechanisches Walzen eine kontrollierte Gefügeentwicklung beim Durchlauf der Dünnbramme durch die CSP-Anlage durchgeführt wird, mit den Verfahrensschritten:a) Änderung der Gussstruktur durch Einstellung definierter Temperatur- und Formänderungsbedingungen bei der ersten Umformung (4), wobei die Temperatur oberhalb der Rekristallisations-Stop-Temperatur (TR) liegt, so dass ohne Unterbrechung des kontinuierlichen Walzens während und/oder nach der ersten Umformung (4) eine vollständige (dynamische und/oder meta-dynamische und/oder statische) Rekristallisation des Gussgefüges vor Beginn des zweiten Umformschrittes (6) erfolgt;b) Umformung in den letzen Walzgerüsten (8 - 10) bei Temperaturen unterhalb der TR-Temperatur, wobei die Umformung einen Betrag von 30 % nicht unterschreitet und die Endwalztemperatur nahe bei der Ar3-Temperatur (Temperatur der Austenit/Ferrit-Umwandlung) liegt;c) gesteuerte Abkühlung der Warmbreitbänder in der Kühlstrecke (11), vorzugsweise einer Laminar-Kühlstrecke, wobei bei einer Temperatur, die zwischen der Ar3-Temepratur und der Bs-Temperatur (Bainit-Start-Temperatur) liegt, die polymorphe Umwandlung des Austenits erfolgt.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass bei Bedarf zur Bereitstellung der für die Rekristallisation der ersten Umwandlung erforderlichen Zeit das zweite Walzgerüst (5) geöffnet ist und bei Bedarf nur als Treiber genutzt wird.
- Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass nach der Rekristallisation des Gussgefüges infolge der ersten Umformung (4) durch die zweite Umformung (6) ein zweiter Rekristallisationszyklus ausgelöst wird.
- Verfahren nach Anspruch 3, dadurch gekennzeichnet, dass zur Bereitstellung der für die Rekristallisation durch den zweiten Umformschritt (6) erforderlichen Zeit das folgende Walzgerüst (7) geöffnet ist und bei Bedarf nur als Treiber genutzt wird.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19725434 | 1997-06-16 | ||
DE19725434A DE19725434C2 (de) | 1997-06-16 | 1997-06-16 | Verfahren zum Walzen von Warmbreitband in einer CSP-Anlage |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0885974A1 EP0885974A1 (de) | 1998-12-23 |
EP0885974B1 true EP0885974B1 (de) | 2001-08-29 |
Family
ID=7832637
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98110734A Expired - Lifetime EP0885974B1 (de) | 1997-06-16 | 1998-06-12 | Verfahren zum Walzen von Warmband in einer CSP-Anlage |
Country Status (10)
Country | Link |
---|---|
US (1) | US6030470A (de) |
EP (1) | EP0885974B1 (de) |
JP (1) | JP4208101B2 (de) |
CN (1) | CN1123403C (de) |
AR (1) | AR012993A1 (de) |
AT (1) | ATE204916T1 (de) |
BR (1) | BR9801994A (de) |
DE (2) | DE19725434C2 (de) |
EG (1) | EG21540A (de) |
ES (1) | ES2163830T3 (de) |
Families Citing this family (47)
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DE19814223A1 (de) | 1998-03-31 | 1999-10-07 | Schloemann Siemag Ag | Verfahren zur Herstellung von mikrolegierten Baustählen |
DE19913498C1 (de) * | 1999-03-25 | 2000-10-12 | Thyssenkrupp Stahl Ag | Verfahren zum Herstellen eines Warmbandes und Warmbandlinie zur Durchführung des Verfahrens |
US7076983B2 (en) | 2001-03-16 | 2006-07-18 | Nakayama Steel Works, Ltd. | Apparatus and method for hot rolling |
WO2002074460A1 (fr) * | 2001-03-16 | 2002-09-26 | Nakayama Steel Works, Ltd. | Laminoir a chaud et procede de laminage a chaud |
DE10137944A1 (de) * | 2001-08-07 | 2003-02-20 | Sms Demag Ag | Warmwalzanlage |
US6669789B1 (en) | 2001-08-31 | 2003-12-30 | Nucor Corporation | Method for producing titanium-bearing microalloyed high-strength low-alloy steel |
DE10247998B4 (de) * | 2002-10-15 | 2004-07-15 | Thyssenkrupp Stahl Ag | Verfahren zum Herstellen eines besonders gut verformbaren kaltgewalzten Stahlbands oder -blechs |
DE10304318C5 (de) * | 2003-02-04 | 2015-10-15 | Sms Group Gmbh | Verfahren zum Walzen von dünnen und/oder dicken Brammen aus Stahlwerkstoffen zu Warmband |
US20050115649A1 (en) * | 2003-03-27 | 2005-06-02 | Tokarz Christopher A. | Thermomechanical processing routes in compact strip production of high-strength low-alloy steel |
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US8636856B2 (en) | 2011-02-18 | 2014-01-28 | Siderca S.A.I.C. | High strength steel having good toughness |
US8414715B2 (en) | 2011-02-18 | 2013-04-09 | Siderca S.A.I.C. | Method of making ultra high strength steel having good toughness |
RU2466806C1 (ru) * | 2011-06-24 | 2012-11-20 | Открытое акционерное общество Акционерная холдинговая компания "Всероссийский научно-исследовательский и проектно-конструкторский институт металлургического машиностроения имени академика Целикова" (ОАО АХК "ВНИИМЕТМАШ") | Способ производства листовой горячекатаной продукции из алюминия и его сплавов |
US9340847B2 (en) | 2012-04-10 | 2016-05-17 | Tenaris Connections Limited | Methods of manufacturing steel tubes for drilling rods with improved mechanical properties, and rods made by the same |
GB2525337B (en) | 2013-01-11 | 2016-06-22 | Tenaris Connections Ltd | Galling resistant drill pipe tool joint and corresponding drill pipe |
US9187811B2 (en) | 2013-03-11 | 2015-11-17 | Tenaris Connections Limited | Low-carbon chromium steel having reduced vanadium and high corrosion resistance, and methods of manufacturing |
US9803256B2 (en) | 2013-03-14 | 2017-10-31 | Tenaris Coiled Tubes, Llc | High performance material for coiled tubing applications and the method of producing the same |
EP2789700A1 (de) | 2013-04-08 | 2014-10-15 | DALMINE S.p.A. | Dickwandige vergütete und nahtlose Stahlrohre und entsprechendes Verfahren zur Herstellung der Stahlrohre |
EP2789701A1 (de) | 2013-04-08 | 2014-10-15 | DALMINE S.p.A. | Hochfeste mittelwandige vergütete und nahtlose Stahlrohre und entsprechendes Verfahren zur Herstellung der Stahlrohre |
KR102197204B1 (ko) | 2013-06-25 | 2021-01-04 | 테나리스 커넥션즈 비.브이. | 고크롬 내열철강 |
DE102013107010A1 (de) * | 2013-07-03 | 2015-01-22 | Thyssenkrupp Steel Europe Ag | Anlage und Verfahren zum Warmwalzen von Stahlband |
US11124852B2 (en) | 2016-08-12 | 2021-09-21 | Tenaris Coiled Tubes, Llc | Method and system for manufacturing coiled tubing |
CN106244921B (zh) * | 2016-08-30 | 2018-05-01 | 武汉钢铁有限公司 | 一种在csp产线采用铁素体轧制工艺生产低碳钢的方法 |
EP3532213B1 (de) * | 2016-10-27 | 2021-09-01 | Novelis, Inc. | Vorrichtung und verfahren zur herstellung von dicken aluminiumlegierungsartikeln |
EP3532219B1 (de) | 2016-10-27 | 2023-05-31 | Novelis, Inc. | Hochfeste aluminiumlegierungen der serie 6xxx und verfahren zur herstellung davon |
CN109890536B (zh) | 2016-10-27 | 2022-09-23 | 诺维尔里斯公司 | 高强度7xxx系列铝合金及其制造方法 |
US10434554B2 (en) | 2017-01-17 | 2019-10-08 | Forum Us, Inc. | Method of manufacturing a coiled tubing string |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5844903A (ja) * | 1981-09-11 | 1983-03-16 | Kawasaki Steel Corp | 小径ロ−ルによる熱間圧延方法 |
DE3437637A1 (de) * | 1984-10-13 | 1986-04-24 | Thyssen Stahl AG, 4100 Duisburg | Verfahren zur herstellung von grobblech |
JPS61133322A (ja) * | 1984-11-30 | 1986-06-20 | Nippon Steel Corp | 成形性の優れた薄鋼板の製造方法 |
JPS62192539A (ja) * | 1986-02-18 | 1987-08-24 | Nippon Steel Corp | 高f値熱延鋼板の製造方法 |
DE3637893C2 (de) * | 1986-11-06 | 1996-02-08 | Schloemann Siemag Ag | Verfahren und Anlage zur Herstellung von warmgewalztem Stahlband und Bandgießanlage |
JPH07110364B2 (ja) * | 1988-06-01 | 1995-11-29 | 三菱重工業株式会社 | 連続鋳造薄スラブの圧延方法 |
DE3837642A1 (de) * | 1988-11-05 | 1990-05-17 | Schloemann Siemag Ag | Verfahren und vorrichtung zur herstellung von warmgewalzten stahlbaendern |
JPH02235502A (ja) * | 1989-03-06 | 1990-09-18 | Sumitomo Metal Ind Ltd | 熱間連続圧延方法及びその設備 |
DE3926459A1 (de) * | 1989-08-10 | 1991-02-14 | Schloemann Siemag Ag | Verfahren und anlage zur herstellung von thermomechanisch behandeltem walzgut aus stahl |
DE4236307A1 (de) * | 1992-10-28 | 1994-05-05 | Schloemann Siemag Ag | Verfahren und Anlage zur Herstellung von warmgewalztem Stahlband, insbesondere aus bandförmig stranggegossenem Vormaterial |
US5810951A (en) * | 1995-06-07 | 1998-09-22 | Ipsco Enterprises Inc. | Steckel mill/on-line accelerated cooling combination |
-
1997
- 1997-06-16 DE DE19725434A patent/DE19725434C2/de not_active Expired - Fee Related
-
1998
- 1998-06-10 US US09/095,338 patent/US6030470A/en not_active Expired - Lifetime
- 1998-06-10 BR BR9801994-5A patent/BR9801994A/pt not_active IP Right Cessation
- 1998-06-12 DE DE59801289T patent/DE59801289D1/de not_active Expired - Lifetime
- 1998-06-12 EP EP98110734A patent/EP0885974B1/de not_active Expired - Lifetime
- 1998-06-12 AT AT98110734T patent/ATE204916T1/de not_active IP Right Cessation
- 1998-06-12 ES ES98110734T patent/ES2163830T3/es not_active Expired - Lifetime
- 1998-06-15 CN CN98102927A patent/CN1123403C/zh not_active Expired - Fee Related
- 1998-06-15 EG EG67198A patent/EG21540A/xx active
- 1998-06-15 JP JP16738398A patent/JP4208101B2/ja not_active Expired - Fee Related
- 1998-06-16 AR ARP980102866A patent/AR012993A1/es active IP Right Grant
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EG21540A (en) | 2001-11-28 |
BR9801994A (pt) | 1999-10-13 |
US6030470A (en) | 2000-02-29 |
JPH1177102A (ja) | 1999-03-23 |
DE59801289D1 (de) | 2001-10-04 |
ATE204916T1 (de) | 2001-09-15 |
AR012993A1 (es) | 2000-11-22 |
ES2163830T3 (es) | 2002-02-01 |
DE19725434A1 (de) | 1998-12-24 |
JP4208101B2 (ja) | 2009-01-14 |
EP0885974A1 (de) | 1998-12-23 |
CN1207965A (zh) | 1999-02-17 |
DE19725434C2 (de) | 1999-08-19 |
CN1123403C (zh) | 2003-10-08 |
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