EP2356262B1 - Procédé et dispositif pour fabriquer des tubes en acier aux propriétés particulières - Google Patents

Procédé et dispositif pour fabriquer des tubes en acier aux propriétés particulières Download PDF

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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
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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
Application number
EP09763823.3A
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German (de)
English (en)
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EP2356262A1 (fr
Inventor
Jürgen KLARNER
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Voestalpine Tubulars GmbH and Co KG
Original Assignee
Voestalpine Tubulars GmbH and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Voestalpine Tubulars GmbH and Co KG filed Critical Voestalpine Tubulars GmbH and Co KG
Priority to EP13187253.3A priority Critical patent/EP2682485B1/fr
Priority to PL09763823T priority patent/PL2356262T3/pl
Publication of EP2356262A1 publication Critical patent/EP2356262A1/fr
Application granted granted Critical
Publication of EP2356262B1 publication Critical patent/EP2356262B1/fr
Priority to HRP20160591TT priority patent/HRP20160591T1/hr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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.

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  • 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)

Claims (4)

  1. Procédé de fabrication de tubes en acier ayant une résistance mécanique accrue et une meilleure ténacité du matériau, grâce à un refroidissement rapide immédiat après le façonnage à chaud,
    plus précisément de tubes pour champs pétroliers ayant une longueur supérieure à 7 m, allant en particulier jusqu'à 200 m, un diamètre extérieur supérieur à 20 mm mais inférieur à 200 mm, et une épaisseur de paroi supérieure à 2,0 mm, mais inférieure à 25 mm,
    après une déformation par étirage-réduction, dans lequel, sur un laps de temps d'au plus 20 s après la dernière déformation, à une température supérieure à 700°C mais inférieure à 1050°C, on applique sur le parcours allant vers la surface extérieure du tube, d'une manière périphérique et sur une longueur supérieure à 400 fois l'épaisseur de paroi du tube, un fluide de refroidissement sous haute pression en une quantité qui, lors du refroidissement rapide, conduit à une vitesse de refroidissement uniforme, supérieure à 1°C/s, de la paroi du tube sur toute la longueur du tube jusqu'à une température comprise dans la plage de 500°C à 250°C, le courant de fluide de refroidissement étant alors dans chaque cas configuré comme un courant pulvérisé de fluide de refroidissement, le plus souvent de l'eau, ou sous forme d'un courant de brouillard de pulvérisation constitué du fluide de refroidissement et d'air, et/ou sous forme d'un courant gazeux,
    ce après quoi on procède à un refroidissement supplémentaire du tube à l'air à la température ambiante,
    procédé dans lequel, pour la fabrication d'un tube, on utilise un acier ayant une concentration des différents éléments d'alliage et oligo-éléments, ou des éléments d'impureté, en % en poids, de carbone (C) 0,03 à 0,5 silicium (Si) 0,15 à 0,65 manganèse (Mn) 0,5 à 2,0 phosphore (P) max 0,03 soufre (S) max 0,03 chrome (Cr) max 1,5 nickel (Ni) max 1,0 cuivre (Cu) max 0,3 aluminium (Al) 0,01 à 0,09 titane (Ti) max 0,05 molybdène (Mo) max 0,8 vanadium (V) 0,02 à 0,2 étain (Sn) max 0,08 azote (N) max 0,04 niobium (Nb) max 0,08 calcium (Ca) max 0,005 fer (Fe) le reste
  2. Procédé selon la revendication 1, dans lequel le début du refroidissement rapide de la surface extérieure du tube a lieu à une température inférieure à 950°C.
  3. Procédé selon la revendication 1 ou 2, dans lequel, après le refroidissement rapide, on procède, lors d'un refroidissement supplémentaire du tube à l'air, à un chauffage ciblé en retour de la paroi du tube.
  4. Procédé selon l'une des revendications 1 à 3, dans lequel l'acier destiné à la fabrication d'un tube comprend au moins un élément ayant une teneur, en % en poids, de carbone (C) 0,05 à 0,35 phosphore (P) max 0,015 soufre (S) max 0,005 chrome (Cr) max 1,0 titane (Ti) max 0,02
EP09763823.3A 2008-11-20 2009-11-16 Procédé et dispositif pour fabriquer des tubes en acier aux propriétés particulières Active EP2356262B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP13187253.3A EP2682485B1 (fr) 2008-11-20 2009-11-16 Procédé et dispositif de fabrication de tubes en acier ayant des propriétés particulières
PL09763823T PL2356262T3 (pl) 2008-11-20 2009-11-16 Sposób i urządzenie do wytwarzania rur stalowych o szczególnych właściwościach
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 (fr) 2008-11-20 2009-11-16 Procédé et dispositif pour fabriquer des tubes en acier aux propriétés particulières

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP13187253.3A Division EP2682485B1 (fr) 2008-11-20 2009-11-16 Procédé et dispositif de fabrication de tubes en acier ayant des propriétés particulières
EP13187253.3A Division-Into EP2682485B1 (fr) 2008-11-20 2009-11-16 Procédé et dispositif de fabrication de tubes en acier ayant des propriétés particulières

Publications (2)

Publication Number Publication Date
EP2356262A1 EP2356262A1 (fr) 2011-08-17
EP2356262B1 true EP2356262B1 (fr) 2016-03-09

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EP09763823.3A Active EP2356262B1 (fr) 2008-11-20 2009-11-16 Procédé et dispositif pour fabriquer des tubes en acier aux propriétés particulières
EP13187253.3A Active EP2682485B1 (fr) 2008-11-20 2009-11-16 Procédé et dispositif de fabrication de tubes en acier ayant des propriétés particulières

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EP13187253.3A Active EP2682485B1 (fr) 2008-11-20 2009-11-16 Procédé et dispositif de fabrication de tubes en acier ayant des propriétés particulières

Country Status (18)

Country Link
US (1) US9394582B2 (fr)
EP (2) EP2356262B1 (fr)
JP (1) JP2012509398A (fr)
KR (2) KR101694679B1 (fr)
CN (1) CN102224265A (fr)
AR (1) AR075551A1 (fr)
AT (1) AT507596B1 (fr)
BR (2) BRPI0921077B1 (fr)
CA (1) CA2748046C (fr)
EA (1) EA021245B1 (fr)
ES (2) ES2625085T3 (fr)
HR (2) HRP20160591T1 (fr)
MX (1) MX2011005110A (fr)
PL (2) PL2356262T3 (fr)
SG (2) SG10201500738QA (fr)
UA (1) UA98088C2 (fr)
WO (1) WO2010057235A1 (fr)
ZA (1) ZA201102056B (fr)

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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

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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

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Publication number Priority date Publication date Assignee Title
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
CA2748046A1 (fr) 2010-05-27
ES2569103T3 (es) 2016-05-06
KR101760654B1 (ko) 2017-08-04
MX2011005110A (es) 2011-05-30
EP2682485B1 (fr) 2017-03-15
US20110272067A1 (en) 2011-11-10
AT507596A1 (de) 2010-06-15
BRPI0921077B1 (pt) 2018-01-16
US9394582B2 (en) 2016-07-19
JP2012509398A (ja) 2012-04-19
AR075551A1 (es) 2011-04-20
CN102224265A (zh) 2011-10-19
PL2682485T3 (pl) 2017-09-29
AT507596B1 (de) 2011-04-15
ES2625085T3 (es) 2017-07-18
EP2682485A1 (fr) 2014-01-08
WO2010057235A1 (fr) 2010-05-27
EP2356262A1 (fr) 2011-08-17
SG10201500738QA (en) 2015-03-30
ZA201102056B (en) 2011-11-30
CA2748046C (fr) 2018-01-09
UA98088C2 (ru) 2012-04-10
PL2356262T3 (pl) 2016-08-31
KR20160137675A (ko) 2016-11-30
KR101694679B1 (ko) 2017-01-10
BRPI0921077A2 (pt) 2015-12-15
KR20110095376A (ko) 2011-08-24
BR122017014778B1 (pt) 2018-10-16
HRP20160591T1 (hr) 2016-07-01
EA021245B1 (ru) 2015-05-29
EA201100799A1 (ru) 2011-12-30
HRP20170838T1 (hr) 2017-08-25
SG10202013010SA (en) 2021-02-25

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