FR2265493A1 - Welding Hadfield manganese steel, esp. railways points - using expanding mist of carbon dioxide gas to ensure rapid cooling - Google Patents

Welding Hadfield manganese steel, esp. railways points - using expanding mist of carbon dioxide gas to ensure rapid cooling

Info

Publication number
FR2265493A1
FR2265493A1 FR7411141A FR7411141A FR2265493A1 FR 2265493 A1 FR2265493 A1 FR 2265493A1 FR 7411141 A FR7411141 A FR 7411141A FR 7411141 A FR7411141 A FR 7411141A FR 2265493 A1 FR2265493 A1 FR 2265493A1
Authority
FR
France
Prior art keywords
welding
expanding
mist
points
rapid cooling
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
FR7411141A
Other languages
French (fr)
Other versions
FR2265493B1 (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.)
SNCF Mobilites
Original Assignee
SNCF Mobilites
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 SNCF Mobilites filed Critical SNCF Mobilites
Priority to FR7411141A priority Critical patent/FR2265493A1/en
Publication of FR2265493A1 publication Critical patent/FR2265493A1/en
Application granted granted Critical
Publication of FR2265493B1 publication Critical patent/FR2265493B1/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
    • E01B7/00—Switches; Crossings
    • E01B7/10—Frogs
    • E01B7/12—Fixed frogs made of one part or composite
    • 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
    • B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
    • B23K35/38—Selection of media, e.g. special atmospheres for surrounding the working area
    • 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
    • B23K9/00—Arc welding or cutting
    • B23K9/23—Arc welding or cutting taking account of the properties of the materials to be welded
    • 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
    • C21D9/50—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for welded joints
    • C21D9/505—Cooling thereof

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Thermal Sciences (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Plasma & Fusion (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Arc Welding In General (AREA)

Abstract

Rapid welding process for steels contg. 13% Mn, comprises using freezing mist of expanding CO2 gas, the flow of the gas being adapted to suit the welding conditions and keep the temp. of the parts being welded between ambient temp. and 100-120 degrees C; and, in place of the welding electrodes, a wire with low resistance to obt. a large deposit of metal per unit of time. The process is pref. used for the welding of crossing points on railway lines, using points made of cast or forget 13% Mn steel welded to two adjacent rails. The expanding mist of CO2 ensures the rapid cooling of the Hadfield 13% Mn steel, thus retaining its wear resistance.
FR7411141A 1974-03-29 1974-03-29 Welding Hadfield manganese steel, esp. railways points - using expanding mist of carbon dioxide gas to ensure rapid cooling Granted FR2265493A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7411141A FR2265493A1 (en) 1974-03-29 1974-03-29 Welding Hadfield manganese steel, esp. railways points - using expanding mist of carbon dioxide gas to ensure rapid cooling

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7411141A FR2265493A1 (en) 1974-03-29 1974-03-29 Welding Hadfield manganese steel, esp. railways points - using expanding mist of carbon dioxide gas to ensure rapid cooling

Publications (2)

Publication Number Publication Date
FR2265493A1 true FR2265493A1 (en) 1975-10-24
FR2265493B1 FR2265493B1 (en) 1977-02-18

Family

ID=9137051

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7411141A Granted FR2265493A1 (en) 1974-03-29 1974-03-29 Welding Hadfield manganese steel, esp. railways points - using expanding mist of carbon dioxide gas to ensure rapid cooling

Country Status (1)

Country Link
FR (1) FR2265493A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4724890A (en) * 1985-07-18 1988-02-16 Voest-Alpine Aktiengesellschaft Process for connecting frogs consisting of austenitic manganese steel casting with rails consisting of carbon steel
EP1736601A1 (en) * 2005-06-22 2006-12-27 Didier Dages Renovierungsverfahren für Herzstücke unter Verwendung von kombinierten Lichtbogenauftragschweissen und Kühlung

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101947697B (en) * 2010-08-17 2012-06-06 宁夏天地奔牛实业集团有限公司 Welding method for improving abrasion resistance of welding line

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4724890A (en) * 1985-07-18 1988-02-16 Voest-Alpine Aktiengesellschaft Process for connecting frogs consisting of austenitic manganese steel casting with rails consisting of carbon steel
EP1736601A1 (en) * 2005-06-22 2006-12-27 Didier Dages Renovierungsverfahren für Herzstücke unter Verwendung von kombinierten Lichtbogenauftragschweissen und Kühlung

Also Published As

Publication number Publication date
FR2265493B1 (en) 1977-02-18

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Legal Events

Date Code Title Description
AM Act modifying the rights related to an application or a patent
ST Notification of lapse