EP0172544A3 - Process for manufacturing rolled steel products, in particular helically ribbed prestressed steel rods - Google Patents

Process for manufacturing rolled steel products, in particular helically ribbed prestressed steel rods Download PDF

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Publication number
EP0172544A3
EP0172544A3 EP85110316A EP85110316A EP0172544A3 EP 0172544 A3 EP0172544 A3 EP 0172544A3 EP 85110316 A EP85110316 A EP 85110316A EP 85110316 A EP85110316 A EP 85110316A EP 0172544 A3 EP0172544 A3 EP 0172544A3
Authority
EP
European Patent Office
Prior art keywords
steel
content
martensite
rods
tension
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
EP85110316A
Other languages
English (en)
Other versions
EP0172544B2 (de
EP0172544B1 (de
EP0172544A2 (de
Inventor
& Widmann Aktiengesellschaft Dyckerhoff
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.)
*DYWIDAG-SYSTEMS INTERNATIONAL G.M.B.H.
STAHLWERK ANNAHUTTE MAX *AICHER G.M.B.H. & CO.K.G.
Original Assignee
Dyckerhoff and Widmann 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6243708&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0172544(A3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Dyckerhoff and Widmann AG filed Critical Dyckerhoff and Widmann AG
Priority to AT85110316T priority Critical patent/ATE49779T1/de
Publication of EP0172544A2 publication Critical patent/EP0172544A2/de
Publication of EP0172544A3 publication Critical patent/EP0172544A3/de
Application granted granted Critical
Publication of EP0172544B1 publication Critical patent/EP0172544B1/de
Publication of EP0172544B2 publication Critical patent/EP0172544B2/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
    • C21D8/06—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of rods or wires
    • C21D8/08—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of rods or wires for concrete reinforcement
    • 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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/18—Hardening; Quenching with or without subsequent tempering
    • C21D1/19—Hardening; Quenching with or without subsequent tempering by interrupted quenching
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S148/00—Metal treatment
    • Y10S148/902—Metal treatment having portions of differing metallurgical properties or characteristics
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S148/00—Metal treatment
    • Y10S148/902—Metal treatment having portions of differing metallurgical properties or characteristics
    • Y10S148/907—Threaded or headed fastener

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Physics & Mathematics (AREA)
  • Manufacturing & Machinery (AREA)
  • Heat Treatment Of Steel (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)
  • Heat Treatment Of Articles (AREA)
  • Laminated Bodies (AREA)
  • Metal Rolling (AREA)
  • Rod-Shaped Construction Members (AREA)
  • Coating With Molten Metal (AREA)
EP85110316A 1984-08-23 1985-08-17 Verfahren zur Wärmebehandlung von warmgewalzten Spannstählen in Form von Stäben oder Drähten Expired - Lifetime EP0172544B2 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85110316T ATE49779T1 (de) 1984-08-23 1985-08-17 Verfahren zum herstellen von walzstahlerzeugnissen, insbesondere von schraubbaren spannstaehlen oder dergleichen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3431008A DE3431008C2 (de) 1984-08-23 1984-08-23 Wärmebehandlung von warmgewalzten Stäben oder Drähten
DE3431008 1984-08-23

Publications (4)

Publication Number Publication Date
EP0172544A2 EP0172544A2 (de) 1986-02-26
EP0172544A3 true EP0172544A3 (en) 1987-10-28
EP0172544B1 EP0172544B1 (de) 1990-01-24
EP0172544B2 EP0172544B2 (de) 1996-06-05

Family

ID=6243708

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85110316A Expired - Lifetime EP0172544B2 (de) 1984-08-23 1985-08-17 Verfahren zur Wärmebehandlung von warmgewalzten Spannstählen in Form von Stäben oder Drähten

Country Status (10)

Country Link
US (1) US4877463A (de)
EP (1) EP0172544B2 (de)
JP (1) JPH0660350B2 (de)
AT (1) ATE49779T1 (de)
AU (1) AU565805B2 (de)
BR (1) BR8504032A (de)
CA (1) CA1268957A (de)
DE (2) DE3431008C2 (de)
ES (1) ES8609490A1 (de)
ZA (1) ZA856448B (de)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3431008C2 (de) 1984-08-23 1986-10-16 Dyckerhoff & Widmann AG, 8000 München Wärmebehandlung von warmgewalzten Stäben oder Drähten
DE3631928C2 (de) * 1986-09-19 1994-06-09 Aicher Max Verfahren zur Herstellung von Walzstahlerzeugnissen
DE8717650U1 (de) * 1987-09-11 1989-08-31 Dyckerhoff & Widmann Ag, 8000 Muenchen, De
DE3730490A1 (de) * 1987-09-11 1989-03-23 Dyckerhoff & Widmann Ag Warmgewalzter betonbewehrungsstab, insbesondere betonrippenstab
DE4224222A1 (de) * 1992-07-22 1994-01-27 Inst Stahlbeton Bewehrung Ev Baustahl, insbesondere Betonstahl und Verfahren zu seiner Herstellung
GB9310854D0 (en) * 1993-05-26 1993-07-14 Asw Ltd Steel bars and rods and manufacturing process
DE29709213U1 (de) * 1997-05-26 1998-09-24 Mitek Ind Gmbh Spann- oder Befestigungsschraube, insbesondere Rohrschraube
US6109851A (en) * 1999-01-13 2000-08-29 Illinois Tool Works Inc. Screws having selected heat treatment and hardening
CA2292166A1 (en) 1999-01-13 2000-07-13 Kent B. Godsted Chemically coated fasteners having improved penetration and withdrawal resistance
US6086305A (en) * 1999-01-13 2000-07-11 Illinois Tool Works Inc. Nails having selected heat treatment and hardening
DE19921286A1 (de) * 1999-05-07 2000-11-09 Sms Demag Ag Wärmebehandlungsverfahren zur Herstellung randschichtgehärteter Lang- nd Flachprodukte aus unlegierten oder niedriglegierten Stählen
ITMI20031031A1 (it) * 2003-05-22 2004-11-23 Danieli Off Mecc Metodo di rocchettatura di materiale metallico in barra.
US7624556B2 (en) 2003-11-25 2009-12-01 Bbv Vorspanntechnik Gmbh Threaded deformed reinforcing bar and method for making the bar
US8997420B2 (en) * 2004-11-29 2015-04-07 Victor Amend Reinforced insulated forms for constructing concrete walls and floors
CN1327008C (zh) * 2005-07-07 2007-07-18 东北大学 高强度带肋钢筋轧后超快速冷却生产工艺
DE202010006059U1 (de) * 2010-04-23 2010-07-22 Stahlwerk Annahütte Max Aicher GmbH & Co KG Gewindestab
AU2013205904B2 (en) * 2012-05-17 2017-12-07 Woodstock Percussion Pty Ltd Full Strength Threaded Bar
CZ307645B6 (cs) * 2017-02-15 2019-01-30 Západočeská Univerzita V Plzni Způsob výroby součástí z ocelí

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH364886A (de) * 1958-08-13 1962-10-15 Dyckerhoff & Widmann Ag Bewehrungsstab für Spannbeton
DE1913758A1 (de) * 1968-03-18 1969-10-09 United States Steel Corp Kaltgezogene Draehte aus warmgewalzten Stahlstangen und Verfahren zu ihrer Herstellung
DE2163163B2 (de) * 1971-12-20 1972-11-30 Fried. Krupp Hüttenwerke AG, 4630 Bochum Verwendung eines werkstoffes zur herstellung von stahldraht hoher festigkeit
DE2439784A1 (de) * 1973-09-24 1975-04-03 Qualitaets Und Edelstahl Kom V Verfahren zur herstellung von geripptem betonstahl, insbesondere fuer bewehrungsmatten und nach diesem verfahren hergestellter betonstahl
BE874535A (fr) * 1979-02-28 1979-06-18 Centre Rech Metallurgique Procede pour fabriquer des produits lamines en acier a haute limite elastique
DE3131078C1 (de) * 1981-08-06 1982-10-28 Dyckerhoff & Widmann AG, 8000 München "Verankerungs- oder Verbindungskörper für Stahlstäbe mit Oberflächenprofilierungen in Form von Rippen"

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE137729C (de) *
BE790867A (fr) * 1972-10-31 1973-02-15 Centre Rech Metallurgique Procede pour ameliorer la qualite de produits lamines, tels quedes ronds ou des barres a beton, du fil machine, etc....
DE2353034B2 (de) * 1972-10-31 1980-03-13 Centre De Recherches Metallurgiques- Centrum Voor Research In De Metallurgie, Bruessel Verfahren zur Verbesserung der mechanischen Festigkeitswerte von Walzprodukten aus Stahl
FR2238768A1 (en) * 1973-07-23 1975-02-21 Sgtm Thermo-mechanical treatment of austenitic steel - followed by controlled quenching giving mech props similar to expensive alloys
US4180418A (en) * 1973-09-11 1979-12-25 Stahlwerke Peine-Salzgitter A.G. Method of making a steel wire adapted for cold drawing
IT1090143B (it) * 1975-01-29 1985-06-18 Centre Rech Metallurgique Procedimento per fabbricare dei prodotti laminati di acciaio
NL7610472A (nl) * 1975-09-30 1977-04-01 Arbed Werkwijze voor de behandeling van gewalst staal.
IT1107284B (it) * 1977-05-13 1985-11-25 Centre Rech Metallurgique Procedimento per la produzione di profilati di acciaio di qualita migliorata
GB1576944A (en) 1977-06-20 1980-10-15 British Steel Corp Production of steeel rod or bar
GB1587215A (en) * 1977-11-03 1981-04-01 British Steel Corp Manufacture of welded steel mesh
ES470858A1 (es) 1977-06-20 1979-10-01 British Steel Corp Ÿun procedimiento para producir redondo o varilla de acero laminado en calienteŸ
DE2844331A1 (de) * 1977-10-14 1979-04-19 Centre Rech Metallurgique Verfahren zur behandlung rohrfoermiger stahlprofile
DE2900271C2 (de) 1979-01-05 1984-01-26 Stahlwerke Peine-Salzgitter Ag, 3150 Peine Schweißbarer Betonstahl und Verfahren zu seiner Herstellung
DE2916218A1 (de) * 1979-04-21 1980-10-23 Florin Stahl Walzwerk Verfahren zur herstellung von walzstahlerzeugnissen mit mehrschichtigem gefuegeaufbau
DE3431008C2 (de) 1984-08-23 1986-10-16 Dyckerhoff & Widmann AG, 8000 München Wärmebehandlung von warmgewalzten Stäben oder Drähten

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH364886A (de) * 1958-08-13 1962-10-15 Dyckerhoff & Widmann Ag Bewehrungsstab für Spannbeton
DE1913758A1 (de) * 1968-03-18 1969-10-09 United States Steel Corp Kaltgezogene Draehte aus warmgewalzten Stahlstangen und Verfahren zu ihrer Herstellung
DE2163163B2 (de) * 1971-12-20 1972-11-30 Fried. Krupp Hüttenwerke AG, 4630 Bochum Verwendung eines werkstoffes zur herstellung von stahldraht hoher festigkeit
DE2439784A1 (de) * 1973-09-24 1975-04-03 Qualitaets Und Edelstahl Kom V Verfahren zur herstellung von geripptem betonstahl, insbesondere fuer bewehrungsmatten und nach diesem verfahren hergestellter betonstahl
BE874535A (fr) * 1979-02-28 1979-06-18 Centre Rech Metallurgique Procede pour fabriquer des produits lamines en acier a haute limite elastique
DE3131078C1 (de) * 1981-08-06 1982-10-28 Dyckerhoff & Widmann AG, 8000 München "Verankerungs- oder Verbindungskörper für Stahlstäbe mit Oberflächenprofilierungen in Form von Rippen"

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
IRON AND STEEL ENGINEER, Band 61, Nr. 3, März 1984, Seiten 53-57, Pittsburgh, Pennsylvania, US; P. SIMON et al.: "Tempcore: a new process for the production of high-quality reinforcing bars" *

Also Published As

Publication number Publication date
AU4658285A (en) 1986-02-27
DE3431008A1 (de) 1986-03-06
EP0172544B2 (de) 1996-06-05
ES546332A0 (es) 1986-07-16
JPH0660350B2 (ja) 1994-08-10
BR8504032A (pt) 1986-06-10
EP0172544B1 (de) 1990-01-24
JPS6160824A (ja) 1986-03-28
DE3575577D1 (de) 1990-03-01
DE3431008C2 (de) 1986-10-16
CA1268957A (en) 1990-05-15
AU565805B2 (en) 1987-10-01
ES8609490A1 (es) 1986-07-16
US4877463A (en) 1989-10-31
ATE49779T1 (de) 1990-02-15
EP0172544A2 (de) 1986-02-26
ZA856448B (en) 1986-04-30

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