DE59508080D1 - Method and device for the heat treatment of profiled rolling stock - Google Patents

Method and device for the heat treatment of profiled rolling stock

Info

Publication number
DE59508080D1
DE59508080D1 DE59508080T DE59508080T DE59508080D1 DE 59508080 D1 DE59508080 D1 DE 59508080D1 DE 59508080 T DE59508080 T DE 59508080T DE 59508080 T DE59508080 T DE 59508080T DE 59508080 D1 DE59508080 D1 DE 59508080D1
Authority
DE
Germany
Prior art keywords
section
profile
temp
cooling
equal intensity
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.)
Expired - Lifetime
Application number
DE59508080T
Other languages
German (de)
Inventor
Dipl-Ing Prskawetz
Dipl-Ing Dr Pointner
Dipl-Ing Dr Moser
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 Rail Technology GmbH
Original Assignee
Voestalpine Schienen GmbH
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 Schienen GmbH filed Critical Voestalpine Schienen GmbH
Application granted granted Critical
Publication of DE59508080D1 publication Critical patent/DE59508080D1/en
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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/62—Quenching devices
    • C21D1/63—Quenching devices for bath 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
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/04—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for rails
    • 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
    • C21D2211/00—Microstructure comprising significant phases
    • C21D2211/009—Pearlite
    • 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
    • C21D2221/00—Treating localised areas of an article
    • C21D2221/02—Edge parts
    • 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

Abstract

Method for treatment of rolled profile material comprises straightening rolled profile (1) with plastic forming at 750-1100 degrees C temp.. Initial cooling takes place with locally equal intensity to 5-120 degrees C temp. above the Ar point of the material. This is followed by cooling which has equal intensity in the longitudinal direction of the profile, but varies along the circumference of the profile cross section to ensure a martensitic-free fine pearlitic structure. Final cooling takes place with locally equal intensity down to room temp.. Also claimed is the appts. for carrying out the above heat treating, novel in that is has a preparatory section (A), a second cooling section (B) and a final cooling section (C). <IMAGE>
DE59508080T 1994-07-19 1995-07-13 Method and device for the heat treatment of profiled rolling stock Expired - Lifetime DE59508080D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT0143194A AT402941B (en) 1994-07-19 1994-07-19 METHOD AND DEVICE FOR THE HEAT TREATMENT OF PROFILED ROLLING MATERIAL

Publications (1)

Publication Number Publication Date
DE59508080D1 true DE59508080D1 (en) 2000-05-04

Family

ID=3513759

Family Applications (1)

Application Number Title Priority Date Filing Date
DE59508080T Expired - Lifetime DE59508080D1 (en) 1994-07-19 1995-07-13 Method and device for the heat treatment of profiled rolling stock

Country Status (19)

Country Link
EP (1) EP0693562B1 (en)
JP (1) JP3811865B2 (en)
KR (1) KR100372402B1 (en)
CN (1) CN1045214C (en)
AT (2) AT402941B (en)
AU (1) AU702091B2 (en)
BR (1) BR9503367A (en)
CA (1) CA2154090C (en)
CZ (1) CZ290866B6 (en)
DE (1) DE59508080D1 (en)
ES (1) ES2145247T3 (en)
HR (1) HRP950386B1 (en)
HU (1) HU218230B (en)
PL (1) PL178079B1 (en)
RU (1) RU2101369C1 (en)
SI (1) SI9500230B (en)
SK (1) SK282161B6 (en)
TW (1) TW300920B (en)
UA (1) UA34469C2 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT407057B (en) * 1996-12-19 2000-12-27 Voest Alpine Schienen Gmbh PROFILED ROLLING MATERIAL AND METHOD FOR THE PRODUCTION THEREOF
AT409268B (en) * 2000-05-29 2002-07-25 Voest Alpine Schienen Gmbh & C METHOD AND DEVICE FOR HARDENING RAILS
DE10148305A1 (en) * 2001-09-29 2003-04-24 Sms Meer Gmbh Process and plant for the thermal treatment of rails
RU2336336C2 (en) 2004-01-09 2008-10-20 Ниппон Стил Корпорейшн Method of fabricating rails
JP5169030B2 (en) * 2007-06-08 2013-03-27 日産自動車株式会社 Quenching method and quenching apparatus
AT505930B1 (en) * 2008-02-04 2009-05-15 Voestalpine Schienen Gmbh DEVICE FOR HARDENING RAILS
EP2253394B1 (en) 2008-02-27 2018-04-04 Nippon Steel & Sumitomo Metal Corporation Cooling system and cooling method of rolling steel
DE102012020844A1 (en) * 2012-10-24 2014-04-24 Thyssenkrupp Gft Gleistechnik Gmbh Process for the thermomechanical treatment of hot-rolled profiles
JP6137093B2 (en) * 2014-09-18 2017-05-31 Ｊｆｅスチール株式会社 Rail cooling method and cooling equipment
BR112021015414A2 (en) 2019-03-15 2021-10-05 Nippon Steel Corporation RAIL

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2087346A (en) * 1930-08-21 1937-07-20 United States Steel Corp Method of producing steel rails
FR2109121A5 (en) 1970-10-02 1972-05-26 Wendel Sidelor
DE2439338C2 (en) * 1974-08-16 1980-08-28 Fried. Krupp, Huettenwerke Ag, 4630 Bochum Process for the heat treatment of rails from the rolling heat
BE854834A (en) * 1977-05-18 1977-09-16 Centre Rech Metallurgique PROCESS FOR MANUFACTURING RAILS WITH IMPROVED CHARACTERISTICS
DE3006695C2 (en) 1980-02-22 1988-12-01 Klöckner-Werke AG, 4100 Duisburg Process for heat treatment of rails
US4486248A (en) * 1982-08-05 1984-12-04 The Algoma Steel Corporation Limited Method for the production of improved railway rails by accelerated cooling in line with the production rolling mill
LU84417A1 (en) * 1982-10-11 1984-05-10 Centre Rech Metallurgique IMPROVED PROCESS FOR THE MANUFACTURE OF RAILS AND RAILS OBTAINED BY THIS PROCESS
DE3446794C1 (en) 1984-12-21 1986-01-02 BWG Butzbacher Weichenbau GmbH, 6308 Butzbach Process for the heat treatment of pearlitic rail steel
DE3579681D1 (en) * 1984-12-24 1990-10-18 Nippon Steel Corp METHOD AND DEVICE FOR TREATING THE RAILS.
US4886558A (en) * 1987-05-28 1989-12-12 Nkk Corporation Method for heat-treating steel rail head
US4895605A (en) * 1988-08-19 1990-01-23 Algoma Steel Corporation Method for the manufacture of hardened railroad rails
DE4003363C1 (en) 1990-02-05 1991-03-28 Voest-Alpine Industrieanlagenbau Ges.M.B.H., Linz, At Hardening rails from rolling temp. - using appts. with manipulator engaging rail from exit roller table with support arms positioned pivotably on each side
AT399346B (en) 1992-07-15 1995-04-25 Voest Alpine Schienen Gmbh METHOD FOR TREATING RAILS
DE4237991A1 (en) 1992-11-11 1994-05-19 Schloemann Siemag Ag Cooling hot-rolled products, rails - using appts. with carrier elements allowing rails to be suspended with their top downwards

Also Published As

Publication number Publication date
AU702091B2 (en) 1999-02-11
HU9502162D0 (en) 1995-09-28
PL178079B1 (en) 2000-02-29
RU2101369C1 (en) 1998-01-10
CZ290866B6 (en) 2002-11-13
SK282161B6 (en) 2001-11-06
HRP950386B1 (en) 2000-02-29
CZ186195A3 (en) 1996-02-14
SK90195A3 (en) 1996-03-06
AU2334995A (en) 1996-02-01
CA2154090A1 (en) 1996-01-20
CN1045214C (en) 1999-09-22
SI9500230A (en) 1997-02-28
EP0693562A1 (en) 1996-01-24
TW300920B (en) 1997-03-21
JP3811865B2 (en) 2006-08-23
EP0693562B1 (en) 2000-03-29
HU218230B (en) 2000-06-28
HUT72292A (en) 1996-04-29
JPH08170120A (en) 1996-07-02
ATA143194A (en) 1997-02-15
ES2145247T3 (en) 2000-07-01
UA34469C2 (en) 2001-03-15
KR100372402B1 (en) 2003-05-09
ATE191241T1 (en) 2000-04-15
BR9503367A (en) 1996-09-10
PL309657A1 (en) 1996-01-22
HRP950386A2 (en) 1997-04-30
CN1123331A (en) 1996-05-29
CA2154090C (en) 2005-01-11
SI9500230B (en) 2001-12-31
AT402941B (en) 1997-09-25

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Legal Events

Date Code Title Description
8328 Change in the person/name/address of the agent

Representative=s name: MAMMEL & MASER, 71065 SINDELFINGEN