PL309657A1 - Method of and apparatus for heat treating rolled metal shapes and rolled metal shape as such - Google Patents

Method of and apparatus for heat treating rolled metal shapes and rolled metal shape as such

Info

Publication number
PL309657A1
PL309657A1 PL95309657A PL30965795A PL309657A1 PL 309657 A1 PL309657 A1 PL 309657A1 PL 95309657 A PL95309657 A PL 95309657A PL 30965795 A PL30965795 A PL 30965795A PL 309657 A1 PL309657 A1 PL 309657A1
Authority
PL
Poland
Prior art keywords
rolled metal
section
heat treating
profile
temp
Prior art date
Application number
PL95309657A
Other versions
PL178079B1 (en
Inventor
Georg Prskawetz
Peter Pointner
Alfred Moser
Original Assignee
Voest Alpine 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 Voest Alpine Schienen Gmbh filed Critical Voest Alpine Schienen Gmbh
Publication of PL309657A1 publication Critical patent/PL309657A1/en
Publication of PL178079B1 publication Critical patent/PL178079B1/en

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 of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Articles (AREA)
  • Metal Rolling (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)
  • Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

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>
PL95309657A 1994-07-19 1995-07-14 Method of and apparatus for heat treating rolled metal shapes and rolled metal shape as such PL178079B1 (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 (2)

Publication Number Publication Date
PL309657A1 true PL309657A1 (en) 1996-01-22
PL178079B1 PL178079B1 (en) 2000-02-29

Family

ID=3513759

Family Applications (1)

Application Number Title Priority Date Filing Date
PL95309657A PL178079B1 (en) 1994-07-19 1995-07-14 Method of and apparatus for heat treating rolled metal shapes and rolled metal shape as such

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 (12)

* 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
AT410549B (en) * 2001-09-13 2003-05-26 Voest Alpine Schienen Gmbh & C DEVICE FOR TURNING ROLLED GOODS WITH LONG LENGTH
DE10148305A1 (en) 2001-09-29 2003-04-24 Sms Meer Gmbh Process and plant for the thermal treatment of rails
WO2005066377A1 (en) 2004-01-09 2005-07-21 Nippon Steel Corporation Rail manufacturing method
RU2254382C1 (en) * 2004-02-24 2005-06-20 Открытое акционерное общество "Новокузнецкий металлургический комбинат" Method of heat treatment of 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
KR101227213B1 (en) 2008-02-27 2013-01-28 신닛테츠스미킨 카부시키카이샤 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
CA3130062C (en) 2019-03-15 2023-09-26 Nippon Steel Corporation Railway rail

Family Cites Families (16)

* 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
EP0186373B1 (en) * 1984-12-24 1990-09-12 Nippon Steel Corporation Method of and apparatus for heat treating rails
LU86510A1 (en) * 1986-07-10 1988-02-02 Centre Rech Metallurgique METHOD AND DEVICE FOR MANUFACTURING A HIGH RESISTANCE RAIL
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
DE4003373C1 (en) * 1990-02-05 1991-05-08 Sfs Stadler Holding Ag, Heerbrugg, Ch
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
JPH08170120A (en) 1996-07-02
DE59508080D1 (en) 2000-05-04
SK90195A3 (en) 1996-03-06
EP0693562A1 (en) 1996-01-24
HU218230B (en) 2000-06-28
CZ290866B6 (en) 2002-11-13
TW300920B (en) 1997-03-21
HRP950386A2 (en) 1997-04-30
RU2101369C1 (en) 1998-01-10
BR9503367A (en) 1996-09-10
CN1045214C (en) 1999-09-22
HUT72292A (en) 1996-04-29
AT402941B (en) 1997-09-25
HRP950386B1 (en) 2000-02-29
EP0693562B1 (en) 2000-03-29
ATE191241T1 (en) 2000-04-15
ES2145247T3 (en) 2000-07-01
PL178079B1 (en) 2000-02-29
CA2154090C (en) 2005-01-11
UA34469C2 (en) 2001-03-15
AU2334995A (en) 1996-02-01
SK282161B6 (en) 2001-11-06
CN1123331A (en) 1996-05-29
CZ186195A3 (en) 1996-02-14
AU702091B2 (en) 1999-02-11
KR100372402B1 (en) 2003-05-09
SI9500230B (en) 2001-12-31
JP3811865B2 (en) 2006-08-23
HU9502162D0 (en) 1995-09-28
SI9500230A (en) 1997-02-28
CA2154090A1 (en) 1996-01-20
ATA143194A (en) 1997-02-15

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