GB273326A - Improvements in the heat treatment of welded rail joints - Google Patents
Improvements in the heat treatment of welded rail jointsInfo
- Publication number
- GB273326A GB273326A GB16885/27A GB1688527A GB273326A GB 273326 A GB273326 A GB 273326A GB 16885/27 A GB16885/27 A GB 16885/27A GB 1688527 A GB1688527 A GB 1688527A GB 273326 A GB273326 A GB 273326A
- Authority
- GB
- United Kingdom
- Prior art keywords
- heat treatment
- rail joints
- critical point
- welded rail
- grained structure
- 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
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
- C21D9/50—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for welded joints
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)
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
273,326. Stedefeld, C. June 28, 1926, [Convention date]. Annealing.-In a method of welding permanentway rail joints the metal in a welded joint produced by a known process is refined and transformed from a coarse grained structure into a fine grained structure by a subsequent heat treatment. The joint is first heated to above the highest critical point, e.g. to 700‹-900‹ C., preferably by electric heating means, is then quenched by oil or water sprayers, reheated to a temperature below the upper critical point, i.e. about 550‹-700‹ C., and cooled in air, warm oil or water. The heating may be carried out by the welding apparatus.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE273326X | 1926-06-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB273326A true GB273326A (en) | 1928-05-24 |
Family
ID=6014645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB16885/27A Expired GB273326A (en) | 1926-06-28 | 1927-06-24 | Improvements in the heat treatment of welded rail joints |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB273326A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10144983B2 (en) | 2011-05-25 | 2018-12-04 | Nippon Steel and Sumitomo Metal Corporation | Method of reheating rail weld zone |
| US10544479B2 (en) | 2014-04-08 | 2020-01-28 | Nippon Steel Corporation | Heat treatment device, heat treatment method, and rail steel |
| CN115725831A (en) * | 2022-11-24 | 2023-03-03 | 攀钢集团攀枝花钢铁研究院有限公司 | Post-welding heat treatment construction method for medium-carbon low-alloy steel rail in field low-temperature environment |
-
1927
- 1927-06-24 GB GB16885/27A patent/GB273326A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10144983B2 (en) | 2011-05-25 | 2018-12-04 | Nippon Steel and Sumitomo Metal Corporation | Method of reheating rail weld zone |
| US10544479B2 (en) | 2014-04-08 | 2020-01-28 | Nippon Steel Corporation | Heat treatment device, heat treatment method, and rail steel |
| CN115725831A (en) * | 2022-11-24 | 2023-03-03 | 攀钢集团攀枝花钢铁研究院有限公司 | Post-welding heat treatment construction method for medium-carbon low-alloy steel rail in field low-temperature environment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB273326A (en) | Improvements in the heat treatment of welded rail joints | |
| ES416138A1 (en) | Continuous annealing method for cold reduced steel strip | |
| GB278233A (en) | Improvements in wire ropes | |
| US2271373A (en) | Method of tempering glass | |
| JPS54147124A (en) | Heat treating method for rail | |
| GB1095802A (en) | Improvements in or relating to torsion springs | |
| GB490514A (en) | A new or improved method of heat treating hollow bodies from within and an electromagnetic induction heater therefor | |
| JPS5585624A (en) | Continuous over-aging method for continuously hot-zinc dipped steel sheet | |
| GB485966A (en) | Improvements in or relating to the electric heat treatment of steel rails | |
| GB308346A (en) | ||
| GB385584A (en) | Process for the production of phosphor-steels | |
| JPS5456920A (en) | Method of heat treatment of ralls | |
| JPS5443810A (en) | Treating method by induction heating | |
| GB490550A (en) | An improved process for the production of cuprous oxide rectifier elements | |
| GB273248A (en) | Improvements in or relating to the manufacture of steel | |
| GB1062754A (en) | Process for producing steel pipes for low temperatures | |
| GB441775A (en) | Improvements in and relating to the production of sheets, bands and objects of metal for electrical purposes | |
| GB372316A (en) | Improvements in or relating to the heat treatment of rails such as railway or tramway rails | |
| GB390999A (en) | Process for improving the deep drawing power of sheet metal and steel strip intended for deep drawing | |
| GB422345A (en) | A method for the treatment of rails or rolled parts of great length preparatory to their heat treatment | |
| GB267687A (en) | Improvements in the heat treatment of alloy steels | |
| GB341738A (en) | Heat treatment of cast iron | |
| GB282671A (en) | Improvements in or relating to methods of making malleable iron castings | |
| GB288579A (en) | Process for the improvement of the properties of iron-beryllium alloys | |
| GB393573A (en) | Improvements in or relating to the manufacture of railway and tramway rails |