FR2243768A1 - Fusion-welded zones with improved quality - obtd by remelting with a reciprocating arc burner - Google Patents

Fusion-welded zones with improved quality - obtd by remelting with a reciprocating arc burner

Info

Publication number
FR2243768A1
FR2243768A1 FR7431176A FR7431176A FR2243768A1 FR 2243768 A1 FR2243768 A1 FR 2243768A1 FR 7431176 A FR7431176 A FR 7431176A FR 7431176 A FR7431176 A FR 7431176A FR 2243768 A1 FR2243768 A1 FR 2243768A1
Authority
FR
France
Prior art keywords
fusion
remelting
welding
weld
welded
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
FR7431176A
Other languages
French (fr)
Other versions
FR2243768B3 (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.)
Messer Griesheim GmbH
Original Assignee
Messer Griesheim GmbH
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 Messer Griesheim GmbH filed Critical Messer Griesheim GmbH
Publication of FR2243768A1 publication Critical patent/FR2243768A1/en
Application granted granted Critical
Publication of FR2243768B3 publication Critical patent/FR2243768B3/fr
Granted legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • B23K9/04—Welding for other purposes than joining, e.g. built-up welding
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/18—After-treatment

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Arc Welding In General (AREA)
  • Coating By Spraying Or Casting (AREA)

Abstract

In a process for improving the quality of the heat-affected zone on fusion-welded surfaces, esp. steel structural elements welded by hot-wire plasma welding or powder-elements welded by hot-wire plasma welding or powder-welding with Ni alloy or Cr/Ni steel strip electrodes, an arc burner with a non-consumable electrode, the energy of which is sufficient to melt only part of the weld layer, is moved to and fro over the surface of the weld in such a way that its rate of progress along the weld divided by the frequency of its to-and-fro motion is less than the max. dia. of the arc (no units specified). Surface remelting carried out in this manner eliminates cracks in the heat-affected zone caused by the original welding.
FR7431176A 1973-09-18 1974-09-16 Fusion-welded zones with improved quality - obtd by remelting with a reciprocating arc burner Granted FR2243768A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19732346873 DE2346873A1 (en) 1973-09-18 1973-09-18 PROCESS FOR IMPROVING THE VALUES OF THE HEAT INFLUENCE ZONE

Publications (2)

Publication Number Publication Date
FR2243768A1 true FR2243768A1 (en) 1975-04-11
FR2243768B3 FR2243768B3 (en) 1977-07-01

Family

ID=5892906

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7431176A Granted FR2243768A1 (en) 1973-09-18 1974-09-16 Fusion-welded zones with improved quality - obtd by remelting with a reciprocating arc burner

Country Status (8)

Country Link
AT (1) AT333102B (en)
CH (1) CH578910A5 (en)
DE (1) DE2346873A1 (en)
ES (1) ES430147A1 (en)
FR (1) FR2243768A1 (en)
IT (1) IT1019281B (en)
NL (1) NL7412354A (en)
SE (1) SE392410B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006015328A2 (en) * 2004-07-30 2006-02-09 Ut-Battelle, Llc. Pulse thermal processing of functional materials using directed plasma arc

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4782206A (en) * 1987-01-27 1988-11-01 The Babcock & Wilcox Company Method and apparatus for controlling weld bead shape to eliminate microfissure defects when shape melting austenitic materials
DE102016112697A1 (en) * 2016-07-11 2018-01-11 Areva Gmbh Method for producing a layer on a surface of a component and method for producing a welded connection

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006015328A2 (en) * 2004-07-30 2006-02-09 Ut-Battelle, Llc. Pulse thermal processing of functional materials using directed plasma arc
WO2006015328A3 (en) * 2004-07-30 2006-08-03 Ut Battelle Llc Pulse thermal processing of functional materials using directed plasma arc
US7220936B2 (en) 2004-07-30 2007-05-22 Ut-Battelle, Llc Pulse thermal processing of functional materials using directed plasma arc

Also Published As

Publication number Publication date
CH578910A5 (en) 1976-08-31
SE392410B (en) 1977-03-28
DE2346873A1 (en) 1975-07-10
SE7411693L (en) 1975-03-19
IT1019281B (en) 1977-11-10
ATA717874A (en) 1976-02-15
FR2243768B3 (en) 1977-07-01
ES430147A1 (en) 1976-10-16
NL7412354A (en) 1975-03-20
AT333102B (en) 1976-11-10

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