FR2266570A1 - Aluminothermic welding of railway rails - by spraying coolant onto rails immediately after welding - Google Patents

Aluminothermic welding of railway rails - by spraying coolant onto rails immediately after welding

Info

Publication number
FR2266570A1
FR2266570A1 FR7411768A FR7411768A FR2266570A1 FR 2266570 A1 FR2266570 A1 FR 2266570A1 FR 7411768 A FR7411768 A FR 7411768A FR 7411768 A FR7411768 A FR 7411768A FR 2266570 A1 FR2266570 A1 FR 2266570A1
Authority
FR
France
Prior art keywords
rails
welding
aluminothermic
pref
coolant
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
Application number
FR7411768A
Other languages
French (fr)
Other versions
FR2266570B3 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BOUTET CAMILLE FR
Original Assignee
BOUTET CAMILLE FR
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by BOUTET CAMILLE FR filed Critical BOUTET CAMILLE FR
Priority to FR7411768A priority Critical patent/FR2266570A1/en
Publication of FR2266570A1 publication Critical patent/FR2266570A1/en
Application granted granted Critical
Publication of FR2266570B3 publication Critical patent/FR2266570B3/fr
Granted legal-status Critical Current

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
    • 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)
  • Heat Treatment Of Articles (AREA)

Abstract

In the aluminothermic welding of treated rails or rails made in special steels, the novelty is that, after casting the aluminothermic mixt., a fluid coolant is projected onto the side- and running-surfaces of the rails as near as possible to the welded joint line. The coolant is pref. sprayed water or a mixt. of water with air and the pref. device consists of a sand mould held round the butt joint by stirrup clamps which are subsequently removed and replaced by the coolant spraying devices; the latter pref. consisting of shaped boxes contg. spraying nozzles and an insulating wall to protect the mould. Used for welding railway rails including those made in steel with a high manganese content. Process restricts the flow of heat into rails which have been heat-treated.
FR7411768A 1974-04-03 1974-04-03 Aluminothermic welding of railway rails - by spraying coolant onto rails immediately after welding Granted FR2266570A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7411768A FR2266570A1 (en) 1974-04-03 1974-04-03 Aluminothermic welding of railway rails - by spraying coolant onto rails immediately after welding

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7411768A FR2266570A1 (en) 1974-04-03 1974-04-03 Aluminothermic welding of railway rails - by spraying coolant onto rails immediately after welding

Publications (2)

Publication Number Publication Date
FR2266570A1 true FR2266570A1 (en) 1975-10-31
FR2266570B3 FR2266570B3 (en) 1977-02-18

Family

ID=9137222

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7411768A Granted FR2266570A1 (en) 1974-04-03 1974-04-03 Aluminothermic welding of railway rails - by spraying coolant onto rails immediately after welding

Country Status (1)

Country Link
FR (1) FR2266570A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0444480A1 (en) * 1990-02-27 1991-09-04 Elektro-Thermit GmbH Process for the intermediate cast welding of isothermal annealed rails
EP3260600A1 (en) * 2016-06-24 2017-12-27 Sncf Reseau Method for repairing a railway rail by means of a repair mould

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0444480A1 (en) * 1990-02-27 1991-09-04 Elektro-Thermit GmbH Process for the intermediate cast welding of isothermal annealed rails
US5078200A (en) * 1990-02-27 1992-01-07 Elektro-Thermit Gmbh Method of cast-welding between finely pearlitized rails
EP3260600A1 (en) * 2016-06-24 2017-12-27 Sncf Reseau Method for repairing a railway rail by means of a repair mould
FR3053056A1 (en) * 2016-06-24 2017-12-29 Sncf Reseau PROCESS FOR REPAIRING A RAIL RAIL USING A REPAIR MOLD

Also Published As

Publication number Publication date
FR2266570B3 (en) 1977-02-18

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