NO161632C - PROCEDURES FOR HEAT CONFORMATION AA PREVENT UNDROVERS IN THE TRANSITIONAL BETWEEN THE SCREWS AND SCRAP PROFILES AND A DEVICE FOR IMPLEMENTING THE PROCEDURE - Google Patents

PROCEDURES FOR HEAT CONFORMATION AA PREVENT UNDROVERS IN THE TRANSITIONAL BETWEEN THE SCREWS AND SCRAP PROFILES AND A DEVICE FOR IMPLEMENTING THE PROCEDURE

Info

Publication number
NO161632C
NO161632C NO861149A NO861149A NO161632C NO 161632 C NO161632 C NO 161632C NO 861149 A NO861149 A NO 861149A NO 861149 A NO861149 A NO 861149A NO 161632 C NO161632 C NO 161632C
Authority
NO
Norway
Prior art keywords
transitional
undrovers
scrap
rail
profiles
Prior art date
Application number
NO861149A
Other languages
Norwegian (no)
Other versions
NO161632B (en
NO861149L (en
Inventor
Franz Rotter
Original Assignee
Voest Alpine 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 Voest Alpine Ag filed Critical Voest Alpine Ag
Publication of NO861149L publication Critical patent/NO861149L/en
Publication of NO161632B publication Critical patent/NO161632B/en
Publication of NO161632C publication Critical patent/NO161632C/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
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Articles (AREA)
  • Laying Of Electric Cables Or Lines Outside (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)
  • Chutes (AREA)
  • Furnace Charging Or Discharging (AREA)
  • Seats For Vehicles (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Screw Conveyors (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Underground Or Underwater Handling Of Building Materials (AREA)
  • Machines For Laying And Maintaining Railways (AREA)
  • Paper (AREA)
  • Manufacturing Of Electrical Connectors (AREA)
  • Railway Tracks (AREA)

Abstract

1. Process for the heat treatment of rails in the transitional region between the tongue end and the control rail section, the rail being heated above the austenitizing temperature and thereafter being cooled in still air, characterized in that the heat treatment is carried out simultaneously with or immediately after the hot forming of the tongue rail end, in that the transitional region is heated over a depth of at least 7 mm and at most 25 mm, and in that the heat treatment is controlled in such a way that the length of the zone of structural change obtained as a result of the forming of the tongue is kept smaller than 30 mm in the longitudinal direction of the rail.
NO861149A 1985-03-25 1986-03-21 PROCEDURES FOR HEAT CONFORMATION AA PREVENT UNDROVERS IN THE TRANSITIONAL BETWEEN THE SCREWS AND SCRAP PROFILES AND A DEVICE FOR IMPLEMENTING THE PROCEDURE NO161632C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT0088785A AT391707B (en) 1985-03-25 1985-03-25 METHOD FOR PREVENTING ADJUSTMENT OF RAILS IN THE TRANSITIONAL AREA AND DEVICE FOR CARRYING OUT THIS METHOD

Publications (3)

Publication Number Publication Date
NO861149L NO861149L (en) 1986-09-26
NO161632B NO161632B (en) 1989-05-29
NO161632C true NO161632C (en) 1989-09-06

Family

ID=3502117

Family Applications (1)

Application Number Title Priority Date Filing Date
NO861149A NO161632C (en) 1985-03-25 1986-03-21 PROCEDURES FOR HEAT CONFORMATION AA PREVENT UNDROVERS IN THE TRANSITIONAL BETWEEN THE SCREWS AND SCRAP PROFILES AND A DEVICE FOR IMPLEMENTING THE PROCEDURE

Country Status (9)

Country Link
EP (1) EP0199706B1 (en)
AT (2) AT391707B (en)
CS (1) CS266577B2 (en)
DD (1) DD244990A5 (en)
DE (1) DE3669538D1 (en)
HU (1) HU195545B (en)
NO (1) NO161632C (en)
PL (1) PL145456B1 (en)
YU (2) YU44545B (en)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB448416A (en) * 1933-09-06 1936-05-27 Oxweld Railroad Service Compan Improvements in or relating to the surface hardening of rails and to rails treated thereby
US2484897A (en) * 1946-10-22 1949-10-18 Linde Air Prod Co Apparatus for heat-treating surfaces of rails
DE800867C (en) * 1949-10-25 1950-12-11 Deutsche Bundesbahn Method and device for removing corrugations on rails
BE626486A (en) * 1961-12-27
DE2541978C3 (en) * 1975-09-20 1978-08-24 Butzbacher Weichenbau Gmbh, 6308 Butzbach Process for the heat treatment of switch parts in a continuous process
DE2821227C2 (en) * 1978-05-16 1982-12-23 Krupp Stahl Ag, 4630 Bochum Process for the production of rails with reduced corrugation

Also Published As

Publication number Publication date
ATE51036T1 (en) 1990-03-15
YU44545B (en) 1990-08-31
EP0199706A3 (en) 1987-05-13
YU36586A (en) 1988-06-30
EP0199706B1 (en) 1990-03-14
NO161632B (en) 1989-05-29
YU164387A (en) 1988-12-31
YU44642B (en) 1990-10-31
DD244990A5 (en) 1987-04-22
CS193786A2 (en) 1989-04-14
PL145456B1 (en) 1988-09-30
DE3669538D1 (en) 1990-04-19
NO861149L (en) 1986-09-26
HUT43655A (en) 1987-11-30
ATA88785A (en) 1990-05-15
CS266577B2 (en) 1990-01-12
HU195545B (en) 1988-05-30
EP0199706A2 (en) 1986-10-29
AT391707B (en) 1990-11-26

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