EP0576107A1 - Utilisation d'un acier pour la fabrication de tubes - Google Patents

Utilisation d'un acier pour la fabrication de tubes Download PDF

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Publication number
EP0576107A1
EP0576107A1 EP93250116A EP93250116A EP0576107A1 EP 0576107 A1 EP0576107 A1 EP 0576107A1 EP 93250116 A EP93250116 A EP 93250116A EP 93250116 A EP93250116 A EP 93250116A EP 0576107 A1 EP0576107 A1 EP 0576107A1
Authority
EP
European Patent Office
Prior art keywords
steel
max
tubes
die
construction
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
Application number
EP93250116A
Other languages
German (de)
English (en)
Other versions
EP0576107B1 (fr
Inventor
Ingo Von Hagen
Ulrich Dipl.-Ing. Menne
Ulrich Hoffmann
Bernhard Vogelsang
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.)
Vodafone GmbH
Original Assignee
Mannesmann AG
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 Mannesmann AG filed Critical Mannesmann AG
Publication of EP0576107A1 publication Critical patent/EP0576107A1/fr
Application granted granted Critical
Publication of EP0576107B1 publication Critical patent/EP0576107B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/38—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of manganese

Definitions

  • the invention relates to the use of a steel for the production of construction tubes for mechanically heavy-duty construction elements, in particular for door reinforcements in automobile construction.
  • reinforcing elements are often used in the vehicle doors for stiffening, which partially absorb the kinetic energy of the impacting vehicle and convert it into plastic deformation.
  • the steel pipes used for this must meet comparatively high requirements with regard to strength, flexibility and work capacity. The same applies, for example, to construction tubes for the manufacture of stabilizers or other mechanically stressed components.
  • Such a construction tubes are usually warmgewalzt ⁇ wherein the final rolling temperature between 900 o C to 1080 o C.
  • the required strength properties can depend on the used steel grade can be adjusted by water hardening.
  • a known steel which is produced by this process contains, for example, 0.18% C, 0.4% Si and 1.14% Mn (balance: iron and usual impurities).
  • the main disadvantage of this process is the additional heat treatment of the steel tube to adjust the mechanical properties. On the one hand, additional heat treatment makes the manufacture of such pipes more expensive.
  • the mechanical properties are altered by thermoforming carried out on the pipe in some areas during further processing, for example to form door reinforcement pipes or in the heat affected zone of weld seams, which may be required for assembly, so that the strength properties can inadvertently decrease significantly compared to those of the initial state.
  • Another steel is known from DE-40 32 996 A1 for the production of steel profiles which are to be used as door reinforcements and which have an external corrosion protection by galvanizing.
  • the steel has the following analysis: 0.18-0.25% C 0.30-0.50% Si 1.30 - 2.00% Mn 0.1 - 0.5% Cr 0.1-0.3% Mo 0.02-0.07% Ti 0.002 - 0.007% B Balance iron and usual impurities
  • This steel is a water hardener, the mechanical properties of which therefore only have to be adjusted with a corresponding effort by means of a separate heat treatment after hot rolling. Despite the character of a water hardener, it is possible in the steel pipes made therefrom to protect them against corrosion by galvanizing, without the set strength properties being reduced to an unacceptable degree by the heating that occurs.
  • the object of the invention is to propose an air-hardening steel for use in the production of mechanically heavy-duty structural pipes, in particular for automobile construction, which can be produced by a one-step melting process in LD converters and which can already be used in the hot-rolled state due to its good strength properties , ie does not necessarily have to be subjected to a heat treatment before its use in order to meet the mechanical minimum requirements required, for example, for door booster tubes in terms of tensile strength, yield strength and elongation at break.
  • a secondary object of the invention is to propose such a steel which, moreover, also has significantly improved properties with regard to cold forming.
  • the steel used according to the invention combines the illustrated positive properties of the already known steels for door reinforcement tubes. At the same time, due to the special chemical composition of the steel described here, metallurgical processes in steel production are simplified. In addition, this steel opens up the possibility of cold forming pipes made from it, so that precision steel pipes can also be produced by cold drawing.
  • the steel described in accordance with the invention is also suitable for the production of stabilizers, for example, which have hitherto been produced from hardened and tempered and tempered precision steel tubes. They have the task of stiffening the axle bodies of motor vehicles when subjected to torsional loads. For this purpose, the stabilizers must withstand the highest possible number of load cycles in a torsion test with changing loads at a given angle of rotation. Stabilizers can be produced from the steel used according to the invention, which are characterized in that they can be cold drawn after hot rolling.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Articles (AREA)
  • Coating With Molten Metal (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Heat Treatment Of Steel (AREA)
EP93250116A 1992-06-10 1993-04-21 Utilisation d'un acier pour la fabrication de tubes Expired - Lifetime EP0576107B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4219336 1992-06-10
DE4219336A DE4219336C2 (de) 1992-06-10 1992-06-10 Verwendung eines Stahls zur Herstellung von Konstruktionsrohren

Publications (2)

Publication Number Publication Date
EP0576107A1 true EP0576107A1 (fr) 1993-12-29
EP0576107B1 EP0576107B1 (fr) 1995-06-14

Family

ID=6460917

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93250116A Expired - Lifetime EP0576107B1 (fr) 1992-06-10 1993-04-21 Utilisation d'un acier pour la fabrication de tubes

Country Status (6)

Country Link
US (1) US5370751A (fr)
EP (1) EP0576107B1 (fr)
JP (1) JPH0673505A (fr)
KR (1) KR100257467B1 (fr)
DE (2) DE4219336C2 (fr)
ES (1) ES2073946T3 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999028518A1 (fr) * 1997-11-27 1999-06-10 Mannesmann Ag Utilisation d'un acier coule et calme durcissant a l'air comme materiau pour produire un produit semi-fini soudable a resistance elevee
EP0980914A2 (fr) * 1998-08-20 2000-02-23 MANNESMANN Aktiengesellschaft Procédé et dispositif pour la fabrication de tubes d'acier profilés à haute ductilité
WO2006048009A1 (fr) * 2004-11-03 2006-05-11 Salzgitter Flachstahl Gmbh Acier autotrempant a resistance elevee presentant d'excellentes proprietes de deformation
EP1881083A1 (fr) * 2006-07-19 2008-01-23 Benteler Stahl/Rohr Gmbh Pièce en acier à haute résistance mécanique et sa utilisation
EP2009120A2 (fr) * 2007-06-27 2008-12-31 Benteler Stahl/Rohr Gmbh Utilisation d'un alliage d'acier très solide destiné à la fabrication de tuyaux en acier très résistants et ayant une bonne déformabilité
WO2009071046A1 (fr) * 2007-12-03 2009-06-11 Salzgitter Flachstahl Gmbh Acier pour éléments de construction très résistants sous forme de rubans, de tôles ou de tuyaux ayant une excellente malléabilité et étant particulièrement adaptés aux procédés de revêtement à haute température
EP2765014A1 (fr) * 2013-02-08 2014-08-13 Benteler Automobiltechnik GmbH Procédé de fabrication d'un stabilisateur de véhicule automobile
WO2021180978A1 (fr) 2020-03-13 2021-09-16 Tata Steel Nederland Technology B.V. Procédé de fabrication d'un article en acier et article

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4331300B2 (ja) * 1999-02-15 2009-09-16 日本発條株式会社 中空スタビライザの製造方法
SE515624C2 (sv) 1999-11-02 2001-09-10 Ovako Steel Ab Lufthärdande låg- till mediumkolhaltigt stål för förbättrad värmebehandling
CZ296802B6 (cs) * 2000-05-31 2006-06-14 Benteler Ag Kliková náprava s prícnou torzní tycí
JP4608739B2 (ja) * 2000-06-14 2011-01-12 Ｊｆｅスチール株式会社 自動車ドア補強用鋼管の製造方法
US7232053B2 (en) * 2004-12-30 2007-06-19 Kva, Inc. Seam-welded air hardenable steel constructions
US7618503B2 (en) * 2001-06-29 2009-11-17 Mccrink Edward J Method for improving the performance of seam-welded joints using post-weld heat treatment
US7540402B2 (en) * 2001-06-29 2009-06-02 Kva, Inc. Method for controlling weld metal microstructure using localized controlled cooling of seam-welded joints
US7475478B2 (en) * 2001-06-29 2009-01-13 Kva, Inc. Method for manufacturing automotive structural members
US7926180B2 (en) * 2001-06-29 2011-04-19 Mccrink Edward J Method for manufacturing gas and liquid storage tanks
KR100821117B1 (ko) * 2001-06-29 2008-04-11 에드워드 제이. 맥크링크 스틸 구조물 및 그 형성 방법
DE102010024664A1 (de) * 2009-06-29 2011-02-17 Salzgitter Flachstahl Gmbh Verfahren zum Herstellen eines Bauteils aus einem lufthärtbaren Stahl und ein damit hergestelltes Bauteil
DE102011118491A1 (de) 2010-11-26 2012-05-31 Salzgitter Flachstahl Gmbh Verfahren zur Herstellung von Bauteilen durch Warmumformung von Platinen
WO2016079565A1 (fr) 2014-11-18 2016-05-26 Arcelormittal Procédé de fabrication d'un produit en acier haute résistance et produit en acier ainsi obtenu
JP2020142293A (ja) * 2019-03-08 2020-09-10 国立大学法人大阪大学 摩擦攪拌接合用ツール及び摩擦攪拌接合方法
DE102019114090A1 (de) 2019-05-27 2020-12-03 Salzgitter Flachstahl Gmbh Verfahren zur Herstellung eines geschweißten Bauteils aus einem umgeformten hochfesten Stahl und Bauteil hierzu

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1083466A (en) * 1963-12-05 1967-09-13 Ishikawajima Harima Heavy Ind Method of manufacturing steel with improved mechanical properties
US3830669A (en) * 1972-06-13 1974-08-20 Sumitomo Metal Ind Process for manufacturing a cold-rolled high strength steel sheet
GB2163454A (en) * 1984-07-04 1986-02-26 Nippon Steel Corp Non-heat refined steel
GB2195658A (en) * 1986-09-11 1988-04-13 British Steel Corp Production of steel

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2180192A5 (fr) * 1972-04-12 1973-11-23 Ugine Aciers
JPS52152814A (en) * 1976-06-14 1977-12-19 Nippon Steel Corp Thermo-mechanical treatment of seamless steel pipe
JPS551935A (en) * 1978-06-20 1980-01-09 Kawasaki Steel Corp Front and rear table face table control unit for reversible rolling mills
JPS57104656A (en) * 1980-12-22 1982-06-29 Nippon Kokan Kk <Nkk> Manufacture of high-tensile steel with low galvanizing crack sensitivity
DE3728476C1 (en) * 1987-08-26 1989-04-06 Benteler Werke Ag Use of a steel as material for producing pipes for door reinforcement
DE4032996A1 (de) * 1989-10-26 1991-05-02 Mannesmann Ag Verfahren zur herstellung eines eine hohe verformungsarbeit und einen aeusseren korrosionsschutz aufweisenden stahlprofiles
DE3935965C1 (fr) * 1989-10-26 1991-05-08 Mannesmann Ag, 4000 Duesseldorf, De

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1083466A (en) * 1963-12-05 1967-09-13 Ishikawajima Harima Heavy Ind Method of manufacturing steel with improved mechanical properties
US3830669A (en) * 1972-06-13 1974-08-20 Sumitomo Metal Ind Process for manufacturing a cold-rolled high strength steel sheet
GB2163454A (en) * 1984-07-04 1986-02-26 Nippon Steel Corp Non-heat refined steel
GB2195658A (en) * 1986-09-11 1988-04-13 British Steel Corp Production of steel

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999028518A1 (fr) * 1997-11-27 1999-06-10 Mannesmann Ag Utilisation d'un acier coule et calme durcissant a l'air comme materiau pour produire un produit semi-fini soudable a resistance elevee
EP0980914A2 (fr) * 1998-08-20 2000-02-23 MANNESMANN Aktiengesellschaft Procédé et dispositif pour la fabrication de tubes d'acier profilés à haute ductilité
EP0980914A3 (fr) * 1998-08-20 2003-06-11 MANNESMANN Aktiengesellschaft Procédé et dispositif pour la fabrication de tubes d'acier profilés à haute ductilité
WO2006048009A1 (fr) * 2004-11-03 2006-05-11 Salzgitter Flachstahl Gmbh Acier autotrempant a resistance elevee presentant d'excellentes proprietes de deformation
EP1881083A1 (fr) * 2006-07-19 2008-01-23 Benteler Stahl/Rohr Gmbh Pièce en acier à haute résistance mécanique et sa utilisation
EP2009120A2 (fr) * 2007-06-27 2008-12-31 Benteler Stahl/Rohr Gmbh Utilisation d'un alliage d'acier très solide destiné à la fabrication de tuyaux en acier très résistants et ayant une bonne déformabilité
EP2009120A3 (fr) * 2007-06-27 2009-08-19 Benteler Stahl/Rohr Gmbh Utilisation d'un alliage d'acier très solide destiné à la fabrication de tuyaux en acier très résistants et ayant une bonne déformabilité
WO2009071046A1 (fr) * 2007-12-03 2009-06-11 Salzgitter Flachstahl Gmbh Acier pour éléments de construction très résistants sous forme de rubans, de tôles ou de tuyaux ayant une excellente malléabilité et étant particulièrement adaptés aux procédés de revêtement à haute température
EP2765014A1 (fr) * 2013-02-08 2014-08-13 Benteler Automobiltechnik GmbH Procédé de fabrication d'un stabilisateur de véhicule automobile
WO2021180978A1 (fr) 2020-03-13 2021-09-16 Tata Steel Nederland Technology B.V. Procédé de fabrication d'un article en acier et article
WO2021180979A1 (fr) 2020-03-13 2021-09-16 Tata Steel Nederland Technology B.V. Procédé de fabrication d'un article en acier et article

Also Published As

Publication number Publication date
JPH0673505A (ja) 1994-03-15
US5370751A (en) 1994-12-06
EP0576107B1 (fr) 1995-06-14
DE4219336A1 (de) 1993-12-16
DE59300257D1 (de) 1995-07-20
KR100257467B1 (ko) 2000-06-01
ES2073946T3 (es) 1995-08-16
DE4219336C2 (de) 1995-10-12

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