EP0761826A3 - Eisen modifizierte Phosphorbronze - Google Patents

Eisen modifizierte Phosphorbronze Download PDF

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Publication number
EP0761826A3
EP0761826A3 EP96202345A EP96202345A EP0761826A3 EP 0761826 A3 EP0761826 A3 EP 0761826A3 EP 96202345 A EP96202345 A EP 96202345A EP 96202345 A EP96202345 A EP 96202345A EP 0761826 A3 EP0761826 A3 EP 0761826A3
Authority
EP
European Patent Office
Prior art keywords
deformation
seamless pipes
manufacturing seamless
coarse
grained
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
EP96202345A
Other languages
English (en)
French (fr)
Other versions
EP0761826B1 (de
EP0761826A2 (de
Inventor
Dieter Dr. Sporer
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.)
Plansee SE
Original Assignee
Plansee SE
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 Plansee SE filed Critical Plansee SE
Publication of EP0761826A2 publication Critical patent/EP0761826A2/de
Publication of EP0761826A3 publication Critical patent/EP0761826A3/de
Application granted granted Critical
Publication of EP0761826B1 publication Critical patent/EP0761826B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • 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
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
    • C22C32/001—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with only oxides
    • C22C32/0015—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with only oxides with only single oxides as main non-metallic constituents
    • C22C32/0026—Matrix based on Ni, Co, Cr or alloys thereof
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/04—Making non-ferrous alloys by powder metallurgy
    • C22C1/05—Mixtures of metal powder with non-metallic powder
    • C22C1/059—Making alloys comprising less than 5% by weight of dispersed reinforcing phases
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C19/00—Alloys based on nickel or cobalt
    • C22C19/03—Alloys based on nickel or cobalt based on nickel
    • C22C19/05—Alloys based on nickel or cobalt based on nickel with chromium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C33/00—Making ferrous alloys
    • C22C33/02—Making ferrous alloys by powder metallurgy
    • C22C33/0207—Using a mixture of prealloyed powders or a master alloy
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/10—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of nickel or cobalt or alloys based thereon
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/24—After-treatment of workpieces or articles
    • B22F2003/248—Thermal after-treatment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
    • B22F2998/10—Processes characterised by the sequence of their steps

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Heat Treatment Of Steel (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)
  • Arc Welding In General (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)

Abstract

Die Erfindung betrifft ein Verfahren zur Herstellung nahtloser Rohre aus Werkstoffen, die durch mechanische Umformung in Kombination mit einer rekristallisierenden Wärmebehandlung ein stark gestrecktes Grobkorngefüge ausbilden, wie beispielsweise dispersionsverfestigte Legierungen auf Eisen-, Nickel- oder Kobaltbasis. Erfindungsgemäß wird ein napf- oder büchsenförmiges Ausgangsteil in unrekristallisiertem Zustand durch Drückwalzen nach DIN 8583, T2 mit einem Umformgrad von mindestens 30 % in die gewünschte Rohrform gebracht. Durch eine Zwischenglühung zwischen einzelnen Verformungsschritten oder durch eine Endglühung nach Abschluß der Verformung wird der Werkstoff grobkörnig rekristallisiert.
EP96202345A 1995-08-28 1996-08-23 Verfahren zur Herstellung nahtloser Rohre aus ODS Werkstoffen Expired - Lifetime EP0761826B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AT457/95 1995-08-28
AT0045795U AT902U1 (de) 1995-08-28 1995-08-28 Verfahren zur herstellung nahtloser rohre
AT45795 1995-08-28

Publications (3)

Publication Number Publication Date
EP0761826A2 EP0761826A2 (de) 1997-03-12
EP0761826A3 true EP0761826A3 (de) 1998-10-28
EP0761826B1 EP0761826B1 (de) 2001-05-23

Family

ID=3491143

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96202345A Expired - Lifetime EP0761826B1 (de) 1995-08-28 1996-08-23 Verfahren zur Herstellung nahtloser Rohre aus ODS Werkstoffen

Country Status (4)

Country Link
EP (1) EP0761826B1 (de)
AT (2) AT902U1 (de)
DE (1) DE59606939D1 (de)
ES (1) ES2158234T3 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115055532B (zh) * 2022-05-30 2025-09-09 西北工业大学 一种兼具高强度和高塑性的钴铬基合金无缝管制备方法

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB629131A (en) * 1947-05-05 1949-09-13 Samuel James Everett Improvements relating to the production of elongated metal tubular parts
US4034588A (en) * 1970-05-11 1977-07-12 Columbiana Foundry Company Methods of piercing and enlarging elongate metal members such as seamless tubes
GB2036622A (en) * 1978-12-15 1980-07-02 Vallourec Manufacture of seamless metal tubes
EP0274631A1 (de) * 1986-12-19 1988-07-20 BBC Brown Boveri AG Verfahren zur Erhöhung der Duktilität eines in groben Längsgerichteten stengelförmigen Kristalliten vorliegenden Werkstücks aus einer oxyddispersiongsgehärteten Nickelbasis-Superlegierung bei Raumtemperatur
EP0398121A1 (de) * 1989-05-16 1990-11-22 Asea Brown Boveri Ag Verfahren zur Erzeugung grober längsgerichteter Stengelkristalle in einer oxyddispersionsgehärteten Nickelbasis-Superlegierung
EP0447858A1 (de) * 1990-03-20 1991-09-25 Asea Brown Boveri Ag Verfahren zur Erzeugung von längsgerichteten grobkörnigen Stengelkristallen in einem aus einer oxyddispersionsgehärteten Nickelbasis-Superlegierung bestehenden Werkstück
EP0456119A1 (de) * 1990-05-07 1991-11-13 PM HOCHTEMPERATUR-METALL GmbH Superlegierung auf Nickelbasis

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3832014C2 (de) * 1988-09-16 1994-11-24 Mannesmann Ag Verfahren zur Herstellung hochfester nahtloser Stahlrohre
JPH02217443A (ja) * 1989-02-16 1990-08-30 Sumitomo Metal Ind Ltd ごみ焼却廃熱ボイラ管用高クロム鋼
DE4332132A1 (de) * 1993-09-17 1995-03-23 Mannesmann Ag Herstellverfahren für nahtlose Rohre aus Nichteisenmetallen, insbesondere Kupfer und Kupferlegierungen

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB629131A (en) * 1947-05-05 1949-09-13 Samuel James Everett Improvements relating to the production of elongated metal tubular parts
US4034588A (en) * 1970-05-11 1977-07-12 Columbiana Foundry Company Methods of piercing and enlarging elongate metal members such as seamless tubes
GB2036622A (en) * 1978-12-15 1980-07-02 Vallourec Manufacture of seamless metal tubes
EP0274631A1 (de) * 1986-12-19 1988-07-20 BBC Brown Boveri AG Verfahren zur Erhöhung der Duktilität eines in groben Längsgerichteten stengelförmigen Kristalliten vorliegenden Werkstücks aus einer oxyddispersiongsgehärteten Nickelbasis-Superlegierung bei Raumtemperatur
EP0398121A1 (de) * 1989-05-16 1990-11-22 Asea Brown Boveri Ag Verfahren zur Erzeugung grober längsgerichteter Stengelkristalle in einer oxyddispersionsgehärteten Nickelbasis-Superlegierung
EP0447858A1 (de) * 1990-03-20 1991-09-25 Asea Brown Boveri Ag Verfahren zur Erzeugung von längsgerichteten grobkörnigen Stengelkristallen in einem aus einer oxyddispersionsgehärteten Nickelbasis-Superlegierung bestehenden Werkstück
EP0456119A1 (de) * 1990-05-07 1991-11-13 PM HOCHTEMPERATUR-METALL GmbH Superlegierung auf Nickelbasis

Also Published As

Publication number Publication date
EP0761826B1 (de) 2001-05-23
EP0761826A2 (de) 1997-03-12
AT902U1 (de) 1996-07-25
DE59606939D1 (de) 2001-06-28
ATE201456T1 (de) 2001-06-15
ES2158234T3 (es) 2001-09-01

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