BG39807A3 - Method for thermic treatment of railway point work- pieces - Google Patents
Method for thermic treatment of railway point work- piecesInfo
- Publication number
- BG39807A3 BG39807A3 BG034229A BG3422976A BG39807A3 BG 39807 A3 BG39807 A3 BG 39807A3 BG 034229 A BG034229 A BG 034229A BG 3422976 A BG3422976 A BG 3422976A BG 39807 A3 BG39807 A3 BG 39807A3
- Authority
- BG
- Bulgaria
- Prior art keywords
- stage
- conversion
- running surface
- pearlite
- blowing
- Prior art date
Links
- 238000000034 method Methods 0.000 title abstract 2
- 238000007664 blowing Methods 0.000 abstract 3
- 238000006243 chemical reaction Methods 0.000 abstract 3
- 229910001562 pearlite Inorganic materials 0.000 abstract 3
- 238000001816 cooling Methods 0.000 abstract 2
- 229910000831 Steel Inorganic materials 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 239000010959 steel Substances 0.000 abstract 1
- 230000009466 transformation Effects 0.000 abstract 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B7/00—Switches; Crossings
- E01B7/10—Frogs
- E01B7/12—Fixed frogs made of one part or composite
-
- 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
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Civil Engineering (AREA)
- Architecture (AREA)
- Crystallography & Structural Chemistry (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 |
|---|---|---|---|
| DE2541978A DE2541978C3 (de) | 1975-09-20 | 1975-09-20 | Verfahren zur Wärmebehandlung von Weichenteilen im Durchlaufverfahren |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BG39807A3 true BG39807A3 (en) | 1986-08-15 |
Family
ID=5956971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BG034229A BG39807A3 (en) | 1975-09-20 | 1976-09-17 | Method for thermic treatment of railway point work- pieces |
Country Status (15)
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2940826C2 (de) * | 1979-10-09 | 1987-03-26 | Fa. Paul Ferd. Peddinghaus, 5820 Gevelsberg | Verfahren zur Tiefenhärtung von Werkstücken sowie Vorrichtung zur Durchführung dieses Verfahrens |
| DE3446794C1 (de) * | 1984-12-21 | 1986-01-02 | BWG Butzbacher Weichenbau GmbH, 6308 Butzbach | Verfahren zur Waermebehandlung perlitischer Schienenstaehle |
| AT391707B (de) * | 1985-03-25 | 1990-11-26 | Voest Alpine Ag | Verfahren zum verhindern der eindellung von schienen im uebergangsbereich sowie vorrichtung zur durchfuehrung dieses verfahrens |
| AT384624B (de) * | 1986-05-22 | 1987-12-10 | Voest Alpine Ag | Einrichtung zur gesteuerten waermebehandlung von weichenteilen |
| AT401359B (de) * | 1991-04-05 | 1996-08-26 | Vae Ag | Verfahren zur herstellung eines herzstückes |
| DE4200545A1 (de) * | 1992-01-11 | 1993-07-15 | Butzbacher Weichenbau Gmbh | Gleisteile sowie verfahren zur herstellung dieser |
| CN115852118A (zh) * | 2022-12-15 | 2023-03-28 | 攀钢集团攀枝花钢铁研究院有限公司 | 低应力高性能辙叉用钢的生产方法 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1758517B1 (de) * | 1967-06-29 | 1970-12-10 | Inst Cercetari Tehnologice Pen | Verfahren zur Waermebehandlung von langgestreckten Werkstuecken mit in Laengsrichtung veraenderlicher Querschnittsform |
| DE1938290A1 (de) * | 1968-08-13 | 1970-02-19 | Union Carbide Corp | Verfahren und Vorrichtung zum Haerten von Schienen |
-
1975
- 1975-09-20 DE DE2541978A patent/DE2541978C3/de not_active Expired
-
1976
- 1976-09-07 NL NL7609909A patent/NL7609909A/xx not_active Application Discontinuation
- 1976-09-13 AT AT0676276A patent/AT386841B/de not_active IP Right Cessation
- 1976-09-15 YU YU2254/76A patent/YU37191B/xx unknown
- 1976-09-15 ZA ZA765542A patent/ZA765542B/xx unknown
- 1976-09-16 CH CH1176176A patent/CH621364A5/de not_active IP Right Cessation
- 1976-09-17 LU LU75832A patent/LU75832A1/xx unknown
- 1976-09-17 IT IT27331/76A patent/IT1068280B/it active
- 1976-09-17 BG BG034229A patent/BG39807A3/xx unknown
- 1976-09-17 DD DD194843A patent/DD126536A5/xx unknown
- 1976-09-17 GB GB38713/76A patent/GB1510608A/en not_active Expired
- 1976-09-17 FI FI762667A patent/FI762667A/fi not_active Application Discontinuation
- 1976-09-20 RO RO7687589A patent/RO72116A/ro unknown
- 1976-09-20 BE BE170770A patent/BE846377A/xx not_active IP Right Cessation
- 1976-09-20 FR FR7628144A patent/FR2324743A1/fr not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| YU37191B (en) | 1984-08-31 |
| RO72116A (ro) | 1981-11-04 |
| ZA765542B (en) | 1977-08-31 |
| AT386841B (de) | 1988-10-25 |
| LU75832A1 (US20110009641A1-20110113-C00160.png) | 1977-05-04 |
| DD126536A5 (US20110009641A1-20110113-C00160.png) | 1977-07-20 |
| NL7609909A (nl) | 1977-03-22 |
| FI762667A (US20110009641A1-20110113-C00160.png) | 1977-03-21 |
| ATA676276A (de) | 1980-01-15 |
| DE2541978C3 (de) | 1978-08-24 |
| BE846377A (fr) | 1977-01-17 |
| FR2324743A1 (fr) | 1977-04-15 |
| CH621364A5 (en) | 1981-01-30 |
| YU225476A (en) | 1983-04-27 |
| IT1068280B (it) | 1985-03-21 |
| GB1510608A (en) | 1978-05-10 |
| DE2541978B2 (de) | 1977-12-15 |
| DE2541978A1 (de) | 1977-03-24 |
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