GB422954A - Heat treatment of steel rails - Google Patents
Heat treatment of steel railsInfo
- Publication number
- GB422954A GB422954A GB1966533A GB1966533A GB422954A GB 422954 A GB422954 A GB 422954A GB 1966533 A GB1966533 A GB 1966533A GB 1966533 A GB1966533 A GB 1966533A GB 422954 A GB422954 A GB 422954A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cooled
- temperature
- heat treatment
- steel rails
- rails
- 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
- C21D9/04—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 Steel (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
Steel rails are rolled to their finished sections, cooled from the rolling temperature to a point only slightly below the lower critical temperature, reheated to slightly above the upper critical temperature and then cooled in air or in a hot-bed to atmosphere temperature. In practice the rails are cooled from a rolling temperature of 925-1065 DEG C., to 500-700 DEG C., and reheated to 800-850 DEG C. The rail may be made from an alloy steel containing 0,2-0,9 per cent of carbon, 0,3-1,60 pf manganese, up to ,08 of phosphorus, up to 0,8 of sulphur, up to 2,0 of silicon and up to 3,0 of chromium, and also, if desired, up to 0,2 of nickel, 0,25 of copper and 0,15 of vanadium. Reference has been directed by the Comptroller to Specification 271,529, [Class 72].
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1966533A GB422954A (en) | 1933-07-11 | 1933-07-11 | Heat treatment of steel rails |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1966533A GB422954A (en) | 1933-07-11 | 1933-07-11 | Heat treatment of steel rails |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB422954A true GB422954A (en) | 1935-01-11 |
Family
ID=10133135
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1966533A Expired GB422954A (en) | 1933-07-11 | 1933-07-11 | Heat treatment of steel rails |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB422954A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE974343C (en) * | 1942-02-25 | 1960-12-01 | Gussstahlwerk Witten Ag | Components of vehicle or engine construction |
| US3251215A (en) * | 1961-10-21 | 1966-05-17 | Huttenwerk Oberhausen A G Fa | Process for making rails |
| US4668308A (en) * | 1984-05-09 | 1987-05-26 | Centre De Recherches Metallurgiques-Centrum Voor Research In De Metallurgie | Method and apparatus for manufacturing rails |
-
1933
- 1933-07-11 GB GB1966533A patent/GB422954A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE974343C (en) * | 1942-02-25 | 1960-12-01 | Gussstahlwerk Witten Ag | Components of vehicle or engine construction |
| US3251215A (en) * | 1961-10-21 | 1966-05-17 | Huttenwerk Oberhausen A G Fa | Process for making rails |
| US4668308A (en) * | 1984-05-09 | 1987-05-26 | Centre De Recherches Metallurgiques-Centrum Voor Research In De Metallurgie | Method and apparatus for manufacturing rails |
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