EP2356262B1 - Verfahren und vorrichtung zur herstellung von stahlrohren mit besonderen eigenschaften - Google Patents
Verfahren und vorrichtung zur herstellung von stahlrohren mit besonderen eigenschaften Download PDFInfo
- Publication number
- EP2356262B1 EP2356262B1 EP09763823.3A EP09763823A EP2356262B1 EP 2356262 B1 EP2356262 B1 EP 2356262B1 EP 09763823 A EP09763823 A EP 09763823A EP 2356262 B1 EP2356262 B1 EP 2356262B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- max
- pipe
- cooling
- temperature
- coolant
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims description 17
- 229910000831 Steel Inorganic materials 0.000 title claims description 14
- 239000010959 steel Substances 0.000 title claims description 14
- 238000001816 cooling Methods 0.000 claims description 32
- 239000000463 material Substances 0.000 claims description 27
- 239000002826 coolant Substances 0.000 claims description 19
- 238000004519 manufacturing process Methods 0.000 claims description 9
- 239000010936 titanium Substances 0.000 claims description 6
- 229910052799 carbon Inorganic materials 0.000 claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 239000011575 calcium Substances 0.000 claims description 4
- 239000007921 spray Substances 0.000 claims description 4
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 3
- 239000010955 niobium Substances 0.000 claims description 3
- 229910052717 sulfur Inorganic materials 0.000 claims description 3
- 239000011593 sulfur Substances 0.000 claims description 3
- 229910052719 titanium Inorganic materials 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 2
- 229910045601 alloy Inorganic materials 0.000 claims description 2
- 239000000956 alloy Substances 0.000 claims description 2
- 229910052791 calcium Inorganic materials 0.000 claims description 2
- 229910052758 niobium Inorganic materials 0.000 claims description 2
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 claims description 2
- 229910052698 phosphorus Inorganic materials 0.000 claims description 2
- 239000011574 phosphorus Substances 0.000 claims description 2
- 238000003303 reheating Methods 0.000 claims description 2
- 239000011651 chromium Substances 0.000 claims 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims 2
- 229910052804 chromium Inorganic materials 0.000 claims 2
- 239000010949 copper Substances 0.000 claims 2
- 239000011572 manganese Substances 0.000 claims 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims 1
- 229910052782 aluminium Inorganic materials 0.000 claims 1
- 229910052802 copper Inorganic materials 0.000 claims 1
- 238000005202 decontamination Methods 0.000 claims 1
- 230000003588 decontaminative effect Effects 0.000 claims 1
- 239000007789 gas Substances 0.000 claims 1
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 claims 1
- 229910052748 manganese Inorganic materials 0.000 claims 1
- 229910052750 molybdenum Inorganic materials 0.000 claims 1
- 239000011733 molybdenum Substances 0.000 claims 1
- 229910052759 nickel Inorganic materials 0.000 claims 1
- 229910052757 nitrogen Inorganic materials 0.000 claims 1
- 239000003921 oil Substances 0.000 claims 1
- 229910052710 silicon Inorganic materials 0.000 claims 1
- 239000010703 silicon Substances 0.000 claims 1
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 claims 1
- 239000000523 sample Substances 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 238000005096 rolling process Methods 0.000 description 4
- 229910000859 α-Fe Inorganic materials 0.000 description 4
- 229910001563 bainite Inorganic materials 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 3
- 235000019362 perlite Nutrition 0.000 description 3
- 239000010451 perlite Substances 0.000 description 3
- 230000009466 transformation Effects 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000001953 recrystallisation Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 238000005496 tempering Methods 0.000 description 2
- 238000000137 annealing Methods 0.000 description 1
- 229910001566 austenite Inorganic materials 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910000734 martensite Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000004781 supercooling Methods 0.000 description 1
- 230000000930 thermomechanical effect Effects 0.000 description 1
Images
Classifications
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- 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
- C21D9/08—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for tubular bodies or pipes
-
- 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
- C21D9/08—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for tubular bodies or pipes
- C21D9/085—Cooling or quenching
-
- 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
- C21D8/10—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies
- C21D8/105—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies of ferrous alloys
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
Definitions
- the invention relates to a method for the production of tubes made of steel with increased strength and improved toughness of the material.
- the properties of the material of the tube wall can have significant differences locally and los related. These property differences are usually based on an uneven microstructure and on an unfavorable steel composition or an increased proportion of accompanying and impurity elements.
- Tubes with a length of 7m and larger and an outer diameter of less than 200mm with a wall thickness of less than 25mm can be subjected to heat treatment only with great effort, which provides a uniformly fine structure with the desired structure over the entire tube volume and minimizes bending perpendicular to the longitudinal direction ,
- the EP 0 972 087 A1 refers to a high-strength steel with high toughness in the thickness direction and with excellent properties of a welded joint, wherein the steel has a tensile strength of at least 900 MPa.
- the production method according to this document provides for heating a slab to deformation temperature (950 ° C - 1250 ° C) to bring niobium into the state of a solid solution. Further, a hot rolling of the slab with a deformation of at least 25% at a temperature of 950 ° C - 700 ° C (Ar 3 ), a cooling of the sheet with a cooling rate of at least 10 ° C / sec to 45 ° C / sec in Sheet center at below 450 ° C to room temperature to convert the microstructure into martensite. To increase the toughness or reliability of the steel, a tempering treatment of the steel sheet is carried out at a temperature below 675 ° C.
- thermo-mechanical forming of tubes by reducing rolls is known at temperatures between Tn r and Ar 3 followed by spraying with water at a cooling rate of 3 to 5 ° C / s.
- the invention is now based on the object of specifying a method with which during the production of a tube by hot forming, in particular by drawdown, downstream of a treatment thereof takes place, which causes an increase in strength and an improvement in the toughness of the pipe material.
- For an integrated tempering treatment may also be advantageous if, after the rapid cooling in a further cooling of the tube in air, a targeted reheating of the pipe wall surface area.
- the method is used for the production of seamless pipes with a length of greater than 7m, in particular up to 200m, an outer diameter of greater than 20mm, but less than 200mm, a wall thickness of greater than 2.0mm, but less than 25mm and it can with considerable advantage the increased tube quality reduce inventory and minimize damage due to breakage with significant repair costs.
- At least one element of the steel may advantageously contain, in terms of a homogeneous high grade of pipe, contents in% by weight of: Carbon (C) 12:05 to 12:35 Phosphorus (P) Max 0015 Sulfur (S) Max 0005 Chrome (Cr) Max 1.0 Titanium (Ti) Max 12:02 Tin (Sn) Max 12:08 Calcium (Ca) Max 0005 exhibit.
- an apparatus for producing steel tubes with increased strength and improved toughness of the material by rapid cooling after deformation consisting of a device for coolant application of a pipe surface, advantageously shows in the rolling direction after the last deformation stand a switchable through-cooling section with a plurality of concentric arranged around the rolling stock, in the longitudinal direction differently positionable distributor rings for the cooling medium in each case with at least 3, each directed substantially to the axis of nozzles, each distribution ring or each group of the same throughput controlled with the cooling medium is anspeisbar.
- the coolant stream can be designed in each case as a spray stream of coolant, usually water, and / or as a spray stream of coolant and air and / or as a gas stream.
- pipe cooling controls with position and temperature sensors are used to control the coolant flows.
- Example 1 from tube pre-material of the same mother melt with a chemical composition in wt .-% according to Tab. 1 description C Si Mn P S Cr Ni Cu al Not a word Fe RVM ⁇ 0.1819 0.2910 1.4231 0.0146 0.0065 0.0415 0.0275 0.0211 0.0274 0.0126 rest Finally, by means of stretch-reducing tubes with the following dimensions were produced: Pipe length (rolling stock) (L) 19,300.00 mm Pipe diameter ( ⁇ ) 146.00 mm Pipe wall thickness 9.70 mm
- the pipe was introduced after a time of 12 seconds at a temperature of 880 ° C. into a through-flow cooling section.
- microstructure revealed that at most there was in each case an advantageously rectified microstructure, essentially without texture, but with a grain size and microstructure distribution dependent on the final cooling temperature.
- Fig. 1 shows a structure of sample P1, wherein a particle size of 20 .mu.m - 30 .mu.m at high ferrite content was present.
- the further structural component was essentially perlite.
- Perlite and microstructures of the upper intermediate or upper bainite were the other components of the compensation structure.
- Fig. 5 shows in a bar graph the measured values yield strength (Rp) (0.2) [MPa], tensile strength (Rm) [MPa], constriction (Ac) [%] and toughness (KV450) [J] of the samples P1 to P4, ie depending on the achieved by the different cooling parameters in the annealing technology, mechanical material properties.
- the yield strength of the material of the pipe wall can be increased by a process according to the invention from 424 [MPa] to 819 [MPa] and at the same time minimizing the drop of the elongation values from 26 [%] to 10 [%], the material toughness from 170 [J] to 160 [J] decreased.
- sample tube P4 could enter due to low transformation temperature high degree of conversion into a lower bainite structure of the structure can be achieved, whereby an increase in the toughness of the material was achievable.
- Fig. 6 shows the measured hardness values over the pipe length of test tubes P1 and P4.
- Fig. 7 the hardness profile of the material in the quadrant is shown over the pipe wall thickness of the test tube P2.
- the measurement results of the four quadrants Q1 to Q4 are averages of four spaced measurements per quadrant in the outer, middle and inner regions of the tube wall. As can be seen from the comparison of the respective hardness values over the cross section of the pipe wall in the quadrant, only slightest differences in the material strength exist, whereby the achievable product quality is represented by using the method according to the invention and a like device.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Heat Treatment Of Articles (AREA)
- Heat Treatment Of Steel (AREA)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL09763823T PL2356262T3 (pl) | 2008-11-20 | 2009-11-16 | Sposób i urządzenie do wytwarzania rur stalowych o szczególnych właściwościach |
EP13187253.3A EP2682485B1 (de) | 2008-11-20 | 2009-11-16 | Verfahren und Vorrichtung zur Herstellung von Stahlrohren mit besonderen Eigenschaften |
HRP20160591TT HRP20160591T1 (hr) | 2008-11-20 | 2016-06-01 | Postupak i uređaj za izradu čeličnih cijevi s posebnim svojstvima |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT0181408A AT507596B1 (de) | 2008-11-20 | 2008-11-20 | Verfahren und vorrichtung zur herstellung von stahlrohren mit besonderen eigenschaften |
PCT/AT2009/000439 WO2010057235A1 (de) | 2008-11-20 | 2009-11-16 | Verfahren und vorrichtung zur herstellung von stahlrohren mit besonderen eigenschaften |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13187253.3A Division EP2682485B1 (de) | 2008-11-20 | 2009-11-16 | Verfahren und Vorrichtung zur Herstellung von Stahlrohren mit besonderen Eigenschaften |
EP13187253.3A Division-Into EP2682485B1 (de) | 2008-11-20 | 2009-11-16 | Verfahren und Vorrichtung zur Herstellung von Stahlrohren mit besonderen Eigenschaften |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2356262A1 EP2356262A1 (de) | 2011-08-17 |
EP2356262B1 true EP2356262B1 (de) | 2016-03-09 |
Family
ID=41785584
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09763823.3A Active EP2356262B1 (de) | 2008-11-20 | 2009-11-16 | Verfahren und vorrichtung zur herstellung von stahlrohren mit besonderen eigenschaften |
EP13187253.3A Active EP2682485B1 (de) | 2008-11-20 | 2009-11-16 | Verfahren und Vorrichtung zur Herstellung von Stahlrohren mit besonderen Eigenschaften |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13187253.3A Active EP2682485B1 (de) | 2008-11-20 | 2009-11-16 | Verfahren und Vorrichtung zur Herstellung von Stahlrohren mit besonderen Eigenschaften |
Country Status (18)
Country | Link |
---|---|
US (1) | US9394582B2 (ru) |
EP (2) | EP2356262B1 (ru) |
JP (1) | JP2012509398A (ru) |
KR (2) | KR101694679B1 (ru) |
CN (1) | CN102224265A (ru) |
AR (1) | AR075551A1 (ru) |
AT (1) | AT507596B1 (ru) |
BR (2) | BR122017014778B1 (ru) |
CA (1) | CA2748046C (ru) |
EA (1) | EA021245B1 (ru) |
ES (2) | ES2569103T3 (ru) |
HR (2) | HRP20160591T1 (ru) |
MX (1) | MX2011005110A (ru) |
PL (2) | PL2356262T3 (ru) |
SG (2) | SG10202013010SA (ru) |
UA (1) | UA98088C2 (ru) |
WO (1) | WO2010057235A1 (ru) |
ZA (1) | ZA201102056B (ru) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102021488B (zh) * | 2010-11-30 | 2013-05-08 | 攀钢集团钢铁钒钛股份有限公司 | 核岛无缝钢管用钢及其生产方法 |
CN102367560B (zh) * | 2011-11-09 | 2013-06-19 | 南京钢铁股份有限公司 | 一种高强度耐腐蚀直缝焊管用钢的制造方法 |
AR096272A1 (es) * | 2013-05-31 | 2015-12-16 | Nippon Steel & Sumitomo Metal Corp | Tubo de acero sin costura para tubería de conducción utilizado en ambientes agrios |
DE102019205724A1 (de) | 2019-04-18 | 2020-10-22 | Sms Group Gmbh | Kühlvorrichtung für nahtlose Stahlrohre |
DE102020212926A1 (de) | 2020-10-14 | 2022-04-14 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung eingetragener Verein | Verfahren zur Umformung eines Halbzeugs und Vorrichtung zur Durchführung des Verfahrens |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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US5186769A (en) * | 1990-08-16 | 1993-02-16 | The Algoma Steel Corporation, Limited | Seamless steel tube manufacture |
JPH11172336A (ja) * | 1997-12-11 | 1999-06-29 | Kawasaki Steel Corp | 継目無鋼管の製造方法 |
US6245290B1 (en) * | 1997-02-27 | 2001-06-12 | Exxonmobil Upstream Research Company | High-tensile-strength steel and method of manufacturing the same |
US7018488B2 (en) * | 2000-06-14 | 2006-03-28 | Jfe Steel Corporation | Steel pipe for use in reinforcement of automobile and method for production thereof |
US20070181234A1 (en) * | 2006-02-08 | 2007-08-09 | Nallen Michael A | Spray quench systems for heat treated metal products |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
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US3507712A (en) * | 1967-09-08 | 1970-04-21 | United States Steel Corp | Method and apparatus for quenching pipe |
JPS5437011A (en) * | 1977-08-29 | 1979-03-19 | Mitsubishi Electric Corp | Apparatus for hardening pipes |
DE3311629C2 (de) * | 1983-03-28 | 1986-08-14 | Mannesmann AG, 4000 Düsseldorf | Verfahren zum Herstellen von nahtlosen Stahlrohren |
JPS62263924A (ja) * | 1986-05-07 | 1987-11-16 | Sumitomo Metal Ind Ltd | 強靭鋼管の製造方法 |
US5487795A (en) * | 1993-07-02 | 1996-01-30 | Dong Won Metal Ind. Co., Ltd. | Method for heat treating an impact beam of automotive vehicle door and a system of the same |
JPH0888515A (ja) * | 1994-09-19 | 1996-04-02 | Advantest Corp | Fm偏移量測定器 |
DE19506858C1 (de) * | 1995-02-14 | 1996-01-18 | Mannesmann Ag | Walzenkalibrierung für ein Rohrreduzierwalzwerk |
JPH08253817A (ja) * | 1995-03-17 | 1996-10-01 | Hitachi Ltd | 圧延用ロールの焼入れ方法及び焼入れ装置 |
DE19962891A1 (de) * | 1999-12-23 | 2001-06-28 | Sms Demag Ag | Verfahren und Vorrichtung zum Abkühlen von warmgewalzten Profilen |
CA2490700C (en) * | 2002-06-19 | 2014-02-25 | Nippon Steel Corporation | Oil country tubular goods excellent in collapse characteristics after expansion and method of production thereof |
CN100420758C (zh) * | 2002-10-01 | 2008-09-24 | 住友金属工业株式会社 | 具有优异抗氢致开裂性的高强度无缝钢管及其制备方法 |
CN1208143C (zh) * | 2002-11-25 | 2005-06-29 | 宝山钢铁股份有限公司 | 一种高性能无缝钢管的制造方法 |
JP2005298861A (ja) * | 2004-04-08 | 2005-10-27 | Nippon Steel Corp | 鋼管の冷却方法および冷却装置 |
US20060169368A1 (en) * | 2004-10-05 | 2006-08-03 | Tenaris Conncections A.G. (A Liechtenstein Corporation) | Low carbon alloy steel tube having ultra high strength and excellent toughness at low temperature and method of manufacturing the same |
BRPI0710119B1 (pt) * | 2006-03-28 | 2019-04-02 | Nippon Steel & Sumitomo Metal Corporation | Método de fabricação de tubulação e tubo sem costura |
CN101153373B (zh) * | 2006-09-27 | 2010-10-06 | 宝山钢铁股份有限公司 | 一种油套管钢的制造工艺 |
JP5020689B2 (ja) * | 2007-04-17 | 2012-09-05 | 新日本製鐵株式会社 | 切削性に優れた機械構造用鋼管 |
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2008
- 2008-11-20 AT AT0181408A patent/AT507596B1/de not_active IP Right Cessation
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2009
- 2009-10-19 AR ARP090104006A patent/AR075551A1/es not_active Application Discontinuation
- 2009-11-16 WO PCT/AT2009/000439 patent/WO2010057235A1/de active Application Filing
- 2009-11-16 ES ES09763823.3T patent/ES2569103T3/es active Active
- 2009-11-16 EP EP09763823.3A patent/EP2356262B1/de active Active
- 2009-11-16 UA UAA201107654A patent/UA98088C2/ru unknown
- 2009-11-16 SG SG10202013010SA patent/SG10202013010SA/en unknown
- 2009-11-16 PL PL09763823T patent/PL2356262T3/pl unknown
- 2009-11-16 JP JP2011536700A patent/JP2012509398A/ja active Pending
- 2009-11-16 CA CA2748046A patent/CA2748046C/en active Active
- 2009-11-16 ES ES13187253.3T patent/ES2625085T3/es active Active
- 2009-11-16 EP EP13187253.3A patent/EP2682485B1/de active Active
- 2009-11-16 CN CN200980146610XA patent/CN102224265A/zh active Pending
- 2009-11-16 US US13/128,838 patent/US9394582B2/en active Active
- 2009-11-16 SG SG10201500738QA patent/SG10201500738QA/en unknown
- 2009-11-16 MX MX2011005110A patent/MX2011005110A/es active IP Right Grant
- 2009-11-16 PL PL13187253T patent/PL2682485T3/pl unknown
- 2009-11-16 EA EA201100799A patent/EA021245B1/ru not_active IP Right Cessation
- 2009-11-16 KR KR1020117014023A patent/KR101694679B1/ko active IP Right Grant
- 2009-11-16 BR BR122017014778A patent/BR122017014778B1/pt active IP Right Grant
- 2009-11-16 KR KR1020167032619A patent/KR101760654B1/ko active IP Right Grant
- 2009-11-16 BR BRPI0921077-6A patent/BRPI0921077B1/pt active IP Right Grant
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2011
- 2011-03-18 ZA ZA2011/02056A patent/ZA201102056B/en unknown
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2016
- 2016-06-01 HR HRP20160591TT patent/HRP20160591T1/hr unknown
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2017
- 2017-06-01 HR HRP20170838TT patent/HRP20170838T1/hr unknown
Patent Citations (5)
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US5186769A (en) * | 1990-08-16 | 1993-02-16 | The Algoma Steel Corporation, Limited | Seamless steel tube manufacture |
US6245290B1 (en) * | 1997-02-27 | 2001-06-12 | Exxonmobil Upstream Research Company | High-tensile-strength steel and method of manufacturing the same |
JPH11172336A (ja) * | 1997-12-11 | 1999-06-29 | Kawasaki Steel Corp | 継目無鋼管の製造方法 |
US7018488B2 (en) * | 2000-06-14 | 2006-03-28 | Jfe Steel Corporation | Steel pipe for use in reinforcement of automobile and method for production thereof |
US20070181234A1 (en) * | 2006-02-08 | 2007-08-09 | Nallen Michael A | Spray quench systems for heat treated metal products |
Also Published As
Publication number | Publication date |
---|---|
ES2569103T3 (es) | 2016-05-06 |
BR122017014778B1 (pt) | 2018-10-16 |
UA98088C2 (ru) | 2012-04-10 |
PL2682485T3 (pl) | 2017-09-29 |
AT507596B1 (de) | 2011-04-15 |
CA2748046A1 (en) | 2010-05-27 |
PL2356262T3 (pl) | 2016-08-31 |
SG10202013010SA (en) | 2021-02-25 |
AR075551A1 (es) | 2011-04-20 |
MX2011005110A (es) | 2011-05-30 |
EA021245B1 (ru) | 2015-05-29 |
WO2010057235A1 (de) | 2010-05-27 |
ES2625085T3 (es) | 2017-07-18 |
US9394582B2 (en) | 2016-07-19 |
JP2012509398A (ja) | 2012-04-19 |
SG10201500738QA (en) | 2015-03-30 |
ZA201102056B (en) | 2011-11-30 |
AT507596A1 (de) | 2010-06-15 |
HRP20170838T1 (hr) | 2017-08-25 |
EP2682485B1 (de) | 2017-03-15 |
BRPI0921077B1 (pt) | 2018-01-16 |
HRP20160591T1 (hr) | 2016-07-01 |
BRPI0921077A2 (pt) | 2015-12-15 |
EP2682485A1 (de) | 2014-01-08 |
CN102224265A (zh) | 2011-10-19 |
KR20160137675A (ko) | 2016-11-30 |
EP2356262A1 (de) | 2011-08-17 |
CA2748046C (en) | 2018-01-09 |
KR101760654B1 (ko) | 2017-08-04 |
KR101694679B1 (ko) | 2017-01-10 |
US20110272067A1 (en) | 2011-11-10 |
KR20110095376A (ko) | 2011-08-24 |
EA201100799A1 (ru) | 2011-12-30 |
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