YU44642B - Process for preventing formation of trough on rails in a transition part between end and tongue profile - Google Patents
Process for preventing formation of trough on rails in a transition part between end and tongue profileInfo
- Publication number
- YU44642B YU44642B YU1643/87A YU164387A YU44642B YU 44642 B YU44642 B YU 44642B YU 1643/87 A YU1643/87 A YU 1643/87A YU 164387 A YU164387 A YU 164387A YU 44642 B YU44642 B YU 44642B
- Authority
- YU
- Yugoslavia
- Prior art keywords
- rails
- tongue
- rail
- heat treatment
- trough
- Prior art date
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)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
- Seats For Vehicles (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Laying Of Electric Cables Or Lines Outside (AREA)
- Furnace Charging Or Discharging (AREA)
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
- Chutes (AREA)
- Screw Conveyors (AREA)
- Underground Or Underwater Handling Of Building Materials (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Manufacturing Of Electrical Connectors (AREA)
- Railway Tracks (AREA)
- Machines For Laying And Maintaining Railways (AREA)
- Paper (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.
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 (2)
Publication Number | Publication Date |
---|---|
YU164387A YU164387A (en) | 1988-12-31 |
YU44642B true YU44642B (en) | 1990-10-31 |
Family
ID=3502117
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
YU365/86A YU44545B (en) | 1985-03-25 | 1986-03-12 | Preparation for rails heat treatment for preventing flexing arising between end and profile of rails tongue |
YU1643/87A YU44642B (en) | 1985-03-25 | 1987-09-04 | Process for preventing formation of trough on rails in a transition part between end and tongue profile |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
YU365/86A YU44545B (en) | 1985-03-25 | 1986-03-12 | Preparation for rails heat treatment for preventing flexing arising between end and profile of rails tongue |
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)
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 |
-
1985
- 1985-03-25 AT AT0088785A patent/AT391707B/en not_active IP Right Cessation
-
1986
- 1986-03-12 YU YU365/86A patent/YU44545B/en unknown
- 1986-03-19 CS CS861937A patent/CS266577B2/en unknown
- 1986-03-19 HU HU861158A patent/HU195545B/en not_active IP Right Cessation
- 1986-03-21 NO NO861149A patent/NO161632C/en unknown
- 1986-03-24 DD DD86288247A patent/DD244990A5/en not_active IP Right Cessation
- 1986-03-24 PL PL1986258590A patent/PL145456B1/en unknown
- 1986-03-24 DE DE8686890076T patent/DE3669538D1/en not_active Expired - Lifetime
- 1986-03-24 AT AT86890076T patent/ATE51036T1/en not_active IP Right Cessation
- 1986-03-24 EP EP86890076A patent/EP0199706B1/en not_active Expired - Lifetime
-
1987
- 1987-09-04 YU YU1643/87A patent/YU44642B/en unknown
Also Published As
Publication number | Publication date |
---|---|
AT391707B (en) | 1990-11-26 |
YU36586A (en) | 1988-06-30 |
DD244990A5 (en) | 1987-04-22 |
NO161632B (en) | 1989-05-29 |
HU195545B (en) | 1988-05-30 |
NO861149L (en) | 1986-09-26 |
PL145456B1 (en) | 1988-09-30 |
YU44545B (en) | 1990-08-31 |
ATE51036T1 (en) | 1990-03-15 |
EP0199706A3 (en) | 1987-05-13 |
DE3669538D1 (en) | 1990-04-19 |
EP0199706A2 (en) | 1986-10-29 |
HUT43655A (en) | 1987-11-30 |
ATA88785A (en) | 1990-05-15 |
YU164387A (en) | 1988-12-31 |
NO161632C (en) | 1989-09-06 |
EP0199706B1 (en) | 1990-03-14 |
CS266577B2 (en) | 1990-01-12 |
CS193786A2 (en) | 1989-04-14 |
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