FR2374127A1 - Moulds or cores for welding bars or rails end=to=end - have integral wedges to control the spacing between the ends during welding - Google Patents
Moulds or cores for welding bars or rails end=to=end - have integral wedges to control the spacing between the ends during weldingInfo
- Publication number
- FR2374127A1 FR2374127A1 FR7637570A FR7637570A FR2374127A1 FR 2374127 A1 FR2374127 A1 FR 2374127A1 FR 7637570 A FR7637570 A FR 7637570A FR 7637570 A FR7637570 A FR 7637570A FR 2374127 A1 FR2374127 A1 FR 2374127A1
- Authority
- FR
- France
- Prior art keywords
- rails
- bars
- moulds
- cores
- welding
- 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.)
- Granted
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B11/00—Rail joints
- E01B11/44—Non-dismountable rail joints; Welded joints
- E01B11/52—Joints made by alumino-thermal welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K23/00—Alumino-thermic welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/26—Railway- or like rails
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
Welding of profiled metal bars and rails is performed in prefabricated moulds or cores of a hard material in which the bars or rails are placed end to end in the moulds which act as molten baths so that the bars or rails are end-welded. The moulds or cores are provided with integral wedges which project into the mould core cavity and penetrate into the gap between the ends of the rails or bars to control the spacing between the rails or bars during welding. The moulds or cores enable the rails or bars to be aligned optimally during welding as well as ensuring that the gap between the rail or bar ends is accurately maintained during welding.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7637570A FR2374127A1 (en) | 1976-12-14 | 1976-12-14 | Moulds or cores for welding bars or rails end=to=end - have integral wedges to control the spacing between the ends during welding |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7637570A FR2374127A1 (en) | 1976-12-14 | 1976-12-14 | Moulds or cores for welding bars or rails end=to=end - have integral wedges to control the spacing between the ends during welding |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2374127A1 true FR2374127A1 (en) | 1978-07-13 |
FR2374127B1 FR2374127B1 (en) | 1979-03-30 |
Family
ID=9181024
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7637570A Granted FR2374127A1 (en) | 1976-12-14 | 1976-12-14 | Moulds or cores for welding bars or rails end=to=end - have integral wedges to control the spacing between the ends during welding |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2374127A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2533478A1 (en) * | 1982-09-24 | 1984-03-30 | Aluminothermique Sa | Moulds erected in situ for the production of thermit welds. |
FR2743319A1 (en) * | 1996-01-05 | 1997-07-11 | Railtech Int | WELDING MOLD AND PREHEATING DEVICE FOR COOPERATING WITH SAME |
EP0808684A2 (en) * | 1996-05-21 | 1997-11-26 | Elektro-Thermit GmbH | Mould for the intermediate cast welding of two workpieces |
US8656984B2 (en) | 2007-11-20 | 2014-02-25 | Railtech International | Mold for direct-cast aluminothermic welding |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR667485A (en) * | 1928-01-28 | 1929-10-17 | Metal & Thermit Corp | Rail welding process |
FR669654A (en) * | 1928-02-15 | 1929-11-19 | Elektro Thermit Gmbh | Process for thermite welding of rail joints |
FR671177A (en) * | 1928-09-08 | 1929-12-10 | Metal & Thermit Corp | Welding of rails without interrupting traffic |
GB977258A (en) * | 1961-05-29 | 1964-12-02 | Erico Prod Inc | Butt joining of steel bars and the like |
US3308532A (en) * | 1963-07-29 | 1967-03-14 | Whittaker Corp | Method and fillings for exothermic brazing |
-
1976
- 1976-12-14 FR FR7637570A patent/FR2374127A1/en active Granted
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR667485A (en) * | 1928-01-28 | 1929-10-17 | Metal & Thermit Corp | Rail welding process |
FR669654A (en) * | 1928-02-15 | 1929-11-19 | Elektro Thermit Gmbh | Process for thermite welding of rail joints |
FR671177A (en) * | 1928-09-08 | 1929-12-10 | Metal & Thermit Corp | Welding of rails without interrupting traffic |
GB977258A (en) * | 1961-05-29 | 1964-12-02 | Erico Prod Inc | Butt joining of steel bars and the like |
US3308532A (en) * | 1963-07-29 | 1967-03-14 | Whittaker Corp | Method and fillings for exothermic brazing |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2533478A1 (en) * | 1982-09-24 | 1984-03-30 | Aluminothermique Sa | Moulds erected in situ for the production of thermit welds. |
FR2743319A1 (en) * | 1996-01-05 | 1997-07-11 | Railtech Int | WELDING MOLD AND PREHEATING DEVICE FOR COOPERATING WITH SAME |
WO1997025479A1 (en) * | 1996-01-05 | 1997-07-17 | Railtech International | Welding mold and preheating device intended to cooperate with the welding mold |
US6152349A (en) * | 1996-01-05 | 2000-11-28 | Railtech International | Welding mold and preheating device intended to cooperate with the welding mold |
AU729112B2 (en) * | 1996-01-05 | 2001-01-25 | Railtech International | Welding mold and preheater device adapted to cooperate with it |
EP0808684A2 (en) * | 1996-05-21 | 1997-11-26 | Elektro-Thermit GmbH | Mould for the intermediate cast welding of two workpieces |
EP0808684A3 (en) * | 1996-05-21 | 1998-07-15 | Elektro-Thermit GmbH | Mould for the intermediate cast welding of two workpieces |
US8656984B2 (en) | 2007-11-20 | 2014-02-25 | Railtech International | Mold for direct-cast aluminothermic welding |
Also Published As
Publication number | Publication date |
---|---|
FR2374127B1 (en) | 1979-03-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |