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 oxygenInfo
- 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
Links
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title 1
- 229910052760 oxygen Inorganic materials 0.000 title 1
- 239000001301 oxygen Substances 0.000 title 1
- 239000003832 thermite Substances 0.000 title 1
- 239000002184 metal Substances 0.000 abstract 2
- 229910052751 metal Inorganic materials 0.000 abstract 2
- 241000238586 Cirripedia Species 0.000 abstract 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 abstract 1
- 229910045601 alloy Inorganic materials 0.000 abstract 1
- 239000000956 alloy Substances 0.000 abstract 1
- 239000004568 cement Substances 0.000 abstract 1
- 239000004567 concrete Substances 0.000 abstract 1
- 238000005553 drilling Methods 0.000 abstract 1
- 238000009413 insulation Methods 0.000 abstract 1
- 229910021652 non-ferrous alloy Inorganic materials 0.000 abstract 1
- 229910001220 stainless steel Inorganic materials 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
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.
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)
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)
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 |
-
1977
- 1977-04-13 NO NO771282A patent/NO147941C/en unknown
- 1977-04-20 MX MX168822A patent/MX144360A/en unknown
- 1977-04-21 NL NL7704360A patent/NL7704360A/en active Search and Examination
- 1977-05-05 IT IT49284/77A patent/IT1079644B/en active
- 1977-05-24 BE BE177852A patent/BE854976A/en not_active IP Right Cessation
- 1977-05-27 CA CA279,349A patent/CA1076655A/en not_active Expired
- 1977-05-31 FR FR7716542A patent/FR2379347A1/en active Granted
- 1977-06-07 DE DE2725643A patent/DE2725643C2/en not_active Expired
- 1977-06-17 DK DK269877A patent/DK269877A/en not_active Application Discontinuation
Patent Citations (9)
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 |