FR825906A - Method and apparatus for hardening the running surface of a rail - Google Patents
Method and apparatus for hardening the running surface of a railInfo
- Publication number
- FR825906A FR825906A FR825906DA FR825906A FR 825906 A FR825906 A FR 825906A FR 825906D A FR825906D A FR 825906DA FR 825906 A FR825906 A FR 825906A
- Authority
- FR
- France
- Prior art keywords
- hardening
- rail
- running surface
- running
- 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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/06—Surface hardening
-
- 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
-
- 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
- C21D2221/00—Treating localised areas of an article
- C21D2221/01—End parts (e.g. leading, trailing end)
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)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US101358A US2198808A (en) | 1936-09-18 | 1936-09-18 | Method of and apparatus for hardening rail ends |
Publications (1)
Publication Number | Publication Date |
---|---|
FR825906A true FR825906A (en) | 1938-03-17 |
Family
ID=22284218
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR825906D Expired FR825906A (en) | 1936-09-18 | 1937-08-25 | Method and apparatus for hardening the running surface of a rail |
Country Status (3)
Country | Link |
---|---|
US (1) | US2198808A (en) |
FR (1) | FR825906A (en) |
GB (1) | GB501340A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2355915A1 (en) * | 1976-06-22 | 1978-01-20 | Peddinghaus Paul Ferd | Workpiece surface hardening - by quenching in quenching fluid with addition of gasified low temperature coolant |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2519354A (en) * | 1947-04-09 | 1950-08-22 | Bethlehem Steel Corp | End hardening of rails |
US2665900A (en) * | 1949-12-15 | 1954-01-12 | Air Reduction | Torch holding attachment for gas cutting machines |
CN111867173B (en) * | 2020-06-16 | 2021-05-28 | 燕山大学 | Electromagnetic induction heating device for space follow-up steel rail |
CN114633421B (en) * | 2022-02-14 | 2024-07-12 | 中逸新材料科技(厦门)有限公司 | Mild cooling and preserving device for thermoplastic powder |
-
1936
- 1936-09-18 US US101358A patent/US2198808A/en not_active Expired - Lifetime
-
1937
- 1937-08-21 GB GB22966/37A patent/GB501340A/en not_active Expired
- 1937-08-25 FR FR825906D patent/FR825906A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2355915A1 (en) * | 1976-06-22 | 1978-01-20 | Peddinghaus Paul Ferd | Workpiece surface hardening - by quenching in quenching fluid with addition of gasified low temperature coolant |
Also Published As
Publication number | Publication date |
---|---|
US2198808A (en) | 1940-04-30 |
GB501340A (en) | 1939-02-21 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FR817995A (en) | Method and apparatus for the distribution of gaseous materials | |
FR811435A (en) | Method and apparatus for damping vibrations | |
FR825906A (en) | Method and apparatus for hardening the running surface of a rail | |
FR839474A (en) | Method and apparatus for the distillation and continuous rectification of liquids | |
FR810912A (en) | Method and apparatus for the decomposition of ammonia | |
FR850011A (en) | Method and apparatus for obtaining hydrocarbons | |
FR828883A (en) | Method and device for the continuous hardening of oils | |
FR799442A (en) | Method and apparatus for the production of fumes | |
FR786038A (en) | Process and plant for the fractionation of hydrocarbon oils | |
FR814012A (en) | Method and apparatus for measuring the characteristics of a fermentation | |
FR878190A (en) | Method and device for quenching the surface of crankshafts | |
FR785677A (en) | Method and apparatus for hydraulic damping of vehicles | |
FR808327A (en) | Method and machine for the application of strips | |
FR843841A (en) | Method and apparatus for preparing epichlorohydrin | |
FR740831A (en) | Method and apparatus for finishing gears | |
FR805207A (en) | Method and apparatus for shaping the surface of a metal part | |
FR816619A (en) | Method and apparatus for anesthesia | |
FR820897A (en) | Method and apparatus for air purification | |
FR796349A (en) | Method and apparatus for draining cars | |
CH189459A (en) | A method of profiling a shaped grinding wheel and apparatus for carrying out this method. | |
FR747198A (en) | Method and apparatus for the conversion of mineral oils | |
FR570488A (en) | Method and apparatus for the distillation of oil | |
FR824630A (en) | Method and device for the production of colored asbestos cement plates | |
FR840962A (en) | Lubricant and process for obtaining it | |
FR602304A (en) | Method and apparatus for the purification of used lubricating oil |