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
Application number
FR7528013A
Other languages
French (fr)
Other versions
FR2323488B1 (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.)
Acieries de Gennevilliers SA
Original Assignee
Acieries de Gennevilliers SA
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 Acieries de Gennevilliers SA filed Critical Acieries de Gennevilliers SA
Priority to FR7528013A priority Critical patent/FR2323488A1/en
Publication of FR2323488A1 publication Critical patent/FR2323488A1/en
Application granted granted Critical
Publication of FR2323488B1 publication Critical patent/FR2323488B1/fr
Granted legal-status Critical Current

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.
FR7528013A 1975-09-12 1975-09-12 Leakproof moulds for thermite welding metal profiles - sealed by strip of resin becoming refractory at high temp. Granted FR2323488A1 (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (7)

* Cited by examiner, † Cited by third party
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