FR2323488A1 - Leakproof moulds for thermite welding metal profiles - sealed by strip of resin becoming refractory at high temp. - Google Patents
Leakproof moulds for thermite welding metal profiles - sealed by strip of resin becoming refractory at high temp.Info
- Publication number
- FR2323488A1 FR2323488A1 FR7528013A FR7528013A FR2323488A1 FR 2323488 A1 FR2323488 A1 FR 2323488A1 FR 7528013 A FR7528013 A FR 7528013A FR 7528013 A FR7528013 A FR 7528013A FR 2323488 A1 FR2323488 A1 FR 2323488A1
- Authority
- FR
- France
- Prior art keywords
- leakproof
- moulds
- strip
- sealed
- high temp
- 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
-
- 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
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D7/00—Casting ingots, e.g. from ferrous metals
- B22D7/06—Ingot moulds or their manufacture
- B22D7/062—Stools for ingot moulds
-
- 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
- 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)
- Arc Welding In General (AREA)
Abstract
In an aluminothermic welding operation on two metal objects, the leakproof jointing of the various parts of the moulded is ensured. The surfaces of the mould coming into contact with each other have a bead of resin applied, of a type which is plastic in the cold state, and decomposes into a refractory material at >250 degrees C. The bead of resin may be applied to grooves machined in the mould surfaces, and is a silicon elastomer, extruded from a gun. System is much simpler than applying a mixture of silica sand, clay and water, etc., since the moulds only need to be pressed together.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7528013A FR2323488A1 (en) | 1975-09-12 | 1975-09-12 | Leakproof moulds for thermite welding metal profiles - sealed by strip of resin becoming refractory at high temp. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7528013A FR2323488A1 (en) | 1975-09-12 | 1975-09-12 | Leakproof moulds for thermite welding metal profiles - sealed by strip of resin becoming refractory at high temp. |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2323488A1 true FR2323488A1 (en) | 1977-04-08 |
FR2323488B1 FR2323488B1 (en) | 1981-04-30 |
Family
ID=9159921
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7528013A Granted FR2323488A1 (en) | 1975-09-12 | 1975-09-12 | Leakproof moulds for thermite welding metal profiles - sealed by strip of resin becoming refractory at high temp. |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2323488A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3072041A1 (en) * | 2017-10-09 | 2019-04-12 | Railtech International | MOLDING ASSEMBLY FOR ALUMINO-THERMAL RAIL SOLDERING AND ALUMINO-THERMAL RAILS SOLDERING PROCESS |
WO2020035164A1 (en) * | 2018-08-15 | 2020-02-20 | Goldschmidt Thermit Gmbh | Method for sealing a casting mould for aluminothermic rail weldings |
-
1975
- 1975-09-12 FR FR7528013A patent/FR2323488A1/en active Granted
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3072041A1 (en) * | 2017-10-09 | 2019-04-12 | Railtech International | MOLDING ASSEMBLY FOR ALUMINO-THERMAL RAIL SOLDERING AND ALUMINO-THERMAL RAILS SOLDERING PROCESS |
WO2019073151A1 (en) * | 2017-10-09 | 2019-04-18 | Pandrol | Moulding assembly for aluminothermic welding of rails and method for aluminothermic welding of rails |
CN111432973A (en) * | 2017-10-09 | 2020-07-17 | 潘得路公司 | Molded assembly for thermite welded rail and method for thermite welded rail |
US11534856B2 (en) | 2017-10-09 | 2022-12-27 | Pandrol | Moulding assembly for aluminothermic welding of rails and method for aluminothermic welding of rails |
WO2020035164A1 (en) * | 2018-08-15 | 2020-02-20 | Goldschmidt Thermit Gmbh | Method for sealing a casting mould for aluminothermic rail weldings |
CN112566746A (en) * | 2018-08-15 | 2021-03-26 | 高施米特控股有限公司 | Method for sealing a mould for welding thermite tracks |
US20210299780A1 (en) * | 2018-08-15 | 2021-09-30 | Goldschmidt Holding GmbH | Method for sealing a casting mould for aluminothermic rail weldings |
Also Published As
Publication number | Publication date |
---|---|
FR2323488B1 (en) | 1981-04-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |