FR2379347A1 - Arc burner for underwater cutting - where arc triggers a thermite reaction in an electrode fed with oxygen - Google Patents

Arc burner for underwater cutting - where arc triggers a thermite reaction in an electrode fed with oxygen

Info

Publication number
FR2379347A1
FR2379347A1 FR7716542A FR7716542A FR2379347A1 FR 2379347 A1 FR2379347 A1 FR 2379347A1 FR 7716542 A FR7716542 A FR 7716542A FR 7716542 A FR7716542 A FR 7716542A FR 2379347 A1 FR2379347 A1 FR 2379347A1
Authority
FR
France
Prior art keywords
tube
burner
arc
electrode
electric power
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
FR7716542A
Other languages
French (fr)
Other versions
FR2379347B1 (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.)
BROWER JEROME
Original Assignee
BROWER JEROME
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
Priority claimed from US05/765,695 external-priority patent/US4182947A/en
Application filed by BROWER JEROME filed Critical BROWER JEROME
Publication of FR2379347A1 publication Critical patent/FR2379347A1/en
Application granted granted Critical
Publication of FR2379347B1 publication Critical patent/FR2379347B1/fr
Granted legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/14—Drilling by use of heat, e.g. flame drilling
    • E21B7/15—Drilling by use of heat, e.g. flame drilling of electrically generated heat
    • 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
    • B23K35/02—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
    • B23K35/0211—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape for use in cutting
    • B23K35/0216—Rods, electrodes, wires
    • 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
    • B23K9/013—Arc cutting, gouging, scarfing or desurfacing
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/14—Drilling by use of heat, e.g. flame drilling
    • E21B7/143—Drilling by use of heat, e.g. flame drilling underwater
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/14—Drilling by use of heat, e.g. flame drilling
    • E21B7/146—Thermal lances

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Plasma & Fusion (AREA)
  • Arc Welding In General (AREA)
  • Nonmetallic Welding Materials (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Gas Separation By Absorption (AREA)
  • Pens And Brushes (AREA)

Abstract

Cutting burner is intended mainly for use under water, and uses an electrode consisting of a metal tube, with an outercoating of insulation. Inside the tube are rods made of ferrous metal, and >=1 rod made of Al, Mg, Ti or their alloy, the rods are located in a circle in the tube and in contact with the bore of the tube, leaving an axial space forthe passage of a reactive gas fed into the tube, which is also supplied with electric power to form an arc. The pref. appts. consists of portable equipment, (a) aportable source of reactive gas, (b) electric power supply and (c) a burner handle fitted with a hand-operated valve controlling the gas flow through a holder to electrode. The electric power supply may include a battery and an electric circuit raising the battery voltage several times before it is fed to the electrode, this circuit pref. includesa hand switch and an oscillator in a voltage multiplier circuit,of the capacitance type. Very high temps. (e.g. 3000 degrees C) are obtd. for cutting stainless steels, nonferrous alloys, cement, concrete,anatifa, barnacles or other submarine flora or fauna. The burner can be used at any depth, e.g. for work on drilling platforms or sunken ships.
FR7716542A 1977-02-04 1977-05-31 Arc burner for underwater cutting - where arc triggers a thermite reaction in an electrode fed with oxygen Granted FR2379347A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/765,695 US4182947A (en) 1975-12-10 1977-02-04 Underwater cutting rod

Publications (2)

Publication Number Publication Date
FR2379347A1 true FR2379347A1 (en) 1978-09-01
FR2379347B1 FR2379347B1 (en) 1983-04-08

Family

ID=25074241

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7716542A Granted FR2379347A1 (en) 1977-02-04 1977-05-31 Arc burner for underwater cutting - where arc triggers a thermite reaction in an electrode fed with oxygen

Country Status (9)

Country Link
BE (1) BE854976A (en)
CA (1) CA1076655A (en)
DE (1) DE2725643C2 (en)
DK (1) DK269877A (en)
FR (1) FR2379347A1 (en)
IT (1) IT1079644B (en)
MX (1) MX144360A (en)
NL (1) NL7704360A (en)
NO (1) NO147941C (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2420089A1 (en) * 1978-03-16 1979-10-12 Freyssinet Int Stup Lance for thermally boring rock, concrete, or metal - comprises helically wound ferrous rods
DE102008056983B3 (en) * 2008-11-12 2010-04-29 Tbi Industries Gmbh Underwater welding system
WO2016166559A2 (en) * 2015-04-13 2016-10-20 Stanek Josip Device for drilling and cutting with improved electrode and tubular electrode for cutting and drilling using burning method in the oxygen mixture

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR499002A (en) * 1919-05-05 1920-01-29 Claude Joseph Holslag Improvements to electrodes for drilling metal plates, etc.
GB582731A (en) * 1944-03-03 1946-11-26 Robert Henry Farmer Boot Improvements in or relating to electric arc cutting devices
US2552176A (en) * 1941-05-30 1951-05-08 Boehler & Co Ag Geb Electrode for cutting and welding under water
GB1188079A (en) * 1968-10-30 1970-04-15 Reginald Clucas Improvements in or relating to Cutting Torches
DE2323828A1 (en) * 1972-05-24 1973-12-06 Aikoh Co CUTTING TORCH
DE2300265A1 (en) * 1973-01-04 1974-07-18 Rudolf Kallenbach Burning holes with an oxygen lance - supplying lance with steel and a light metal to effect oxidation-reduction reaction upon workpiece
FR2279533A1 (en) * 1974-07-23 1976-02-20 Soudure Electr Autogene PROCESS AND EQUIPMENT FOR DRILLING FOR MATERIALS NOT CONDUCTING ELECTRICITY WITH ELECTRIC ARC BLOWING

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR499002A (en) * 1919-05-05 1920-01-29 Claude Joseph Holslag Improvements to electrodes for drilling metal plates, etc.
US2552176A (en) * 1941-05-30 1951-05-08 Boehler & Co Ag Geb Electrode for cutting and welding under water
GB582731A (en) * 1944-03-03 1946-11-26 Robert Henry Farmer Boot Improvements in or relating to electric arc cutting devices
GB1188079A (en) * 1968-10-30 1970-04-15 Reginald Clucas Improvements in or relating to Cutting Torches
FR2021884A1 (en) * 1968-10-30 1970-07-24 Clucas Reginald
US3591758A (en) * 1968-10-30 1971-07-06 Reginald Clucas Flame-cutting torch
DE2323828A1 (en) * 1972-05-24 1973-12-06 Aikoh Co CUTTING TORCH
DE2300265A1 (en) * 1973-01-04 1974-07-18 Rudolf Kallenbach Burning holes with an oxygen lance - supplying lance with steel and a light metal to effect oxidation-reduction reaction upon workpiece
FR2279533A1 (en) * 1974-07-23 1976-02-20 Soudure Electr Autogene PROCESS AND EQUIPMENT FOR DRILLING FOR MATERIALS NOT CONDUCTING ELECTRICITY WITH ELECTRIC ARC BLOWING

Also Published As

Publication number Publication date
DK269877A (en) 1978-08-05
IT1079644B (en) 1985-05-13
DE2725643C2 (en) 1984-11-29
CA1076655A (en) 1980-04-29
DE2725643A1 (en) 1978-08-10
NO147941B (en) 1983-04-05
NO147941C (en) 1983-07-13
MX144360A (en) 1981-10-05
NL7704360A (en) 1978-08-08
NO771282L (en) 1978-08-07
FR2379347B1 (en) 1983-04-08
BE854976A (en) 1977-11-24

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Legal Events

Date Code Title Description
ST Notification of lapse