[go: up one dir, main page]

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
NO861149L (en
NO161632B (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)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Thermal Sciences (AREA)
  • Heat Treatment Of Articles (AREA)
  • Screw Conveyors (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Laying Of Electric Cables Or Lines Outside (AREA)
  • Chutes (AREA)
  • Seats For Vehicles (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)
  • Furnace Charging Or Discharging (AREA)
  • Paper (AREA)
  • Underground Or Underwater Handling Of Building Materials (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Railway Tracks (AREA)
  • Manufacturing Of Electrical Connectors (AREA)
  • Machines For Laying And Maintaining Railways (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (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
CS266577B2 (en) 1990-01-12
ATE51036T1 (en) 1990-03-15
YU36586A (en) 1988-06-30
DE3669538D1 (en) 1990-04-19
YU164387A (en) 1988-12-31
HUT43655A (en) 1987-11-30
NO861149L (en) 1986-09-26
ATA88785A (en) 1990-05-15
PL145456B1 (en) 1988-09-30
DD244990A5 (en) 1987-04-22
CS193786A2 (en) 1989-04-14
EP0199706A3 (en) 1987-05-13
EP0199706A2 (en) 1986-10-29
HU195545B (en) 1988-05-30
YU44545B (en) 1990-08-31
YU44642B (en) 1990-10-31
NO161632B (en) 1989-05-29
EP0199706B1 (en) 1990-03-14
AT391707B (en) 1990-11-26

Similar Documents

Publication Publication Date Title
EP0187904A3 (en) Method of heat treating pearlitic rail steels
ES552641A0 (en) PROCEDURE FOR THE THERMAL TREATMENT OF STEEL WIRES IN FLUIDIFIED BEDS AND APPARATUS FOR THE IMPLEMENTATION OF THE SAME
ATE66252T1 (en) DEVICE FOR MAKING RAILS.
ES489039A1 (en) Method of and an apparatus for continuous heat treatment of separated elongated metallic material
KR0134900B1 (en) Process of rail heat treatment
ES555695A0 (en) HEAT TREATMENT PROCEDURE FOR OBJECTS IN A CONTINUOUS OVEN
NO161632C (en) PROCEDURES FOR HEAT CONFORMATION AA PREVENT UNDROVERS IN THE TRANSITIONAL BETWEEN THE SCREWS AND SCRAP PROFILES AND A DEVICE FOR IMPLEMENTING THE PROCEDURE
ATE103011T1 (en) PROCESS FOR THE CONTINUOUS HEAT TREATMENT OF VERY LOW CARBON STEELS, WHICH CAN BE DEEP DRAWING.
EP0156545A3 (en) Heat treatment with an autoregulating heater
JPS56152929A (en) Method and device for heat treatment of rail head part
Obara et al. Continuous Annealing Method and Apparatus for Deep Drawable Extra-Low Carbon Steel
Tomasu et al. Effect of Laser Heat Treatment on Structure and Properties of Steel CSN 419426 Used for Rolls
JPS5547323A (en) Heat treating method for rail
Teramoto et al. Method for Heat-Treating Steel Rail Head
Nesterov et al. Process of Heat Treatment of Rails With Increased Hardness at the Ends
Guillaume Method of Heat Treating, Gas Curtain Device and Its Use in Heat Treating Furnaces
UA19205A (en) StarWriterMETHOD FOR THERMAL TREATMENT OF RAPID STEEL