EP2106305B1 - Dispositif de dressage à la flamme - Google Patents

Dispositif de dressage à la flamme Download PDF

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Publication number
EP2106305B1
EP2106305B1 EP07856858.1A EP07856858A EP2106305B1 EP 2106305 B1 EP2106305 B1 EP 2106305B1 EP 07856858 A EP07856858 A EP 07856858A EP 2106305 B1 EP2106305 B1 EP 2106305B1
Authority
EP
European Patent Office
Prior art keywords
flame
nozzles
straightening
nozzle
degrees
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.)
Not-in-force
Application number
EP07856858.1A
Other languages
German (de)
English (en)
Other versions
EP2106305A1 (fr
Inventor
Heinz-Dieter Esser
Ronald Steusloff
Johann Stocker
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.)
Linde GmbH
Original Assignee
Linde 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 Linde GmbH filed Critical Linde GmbH
Priority to EP07856858.1A priority Critical patent/EP2106305B1/fr
Priority to PL07856858T priority patent/PL2106305T3/pl
Priority to SI200731878A priority patent/SI2106305T1/sl
Publication of EP2106305A1 publication Critical patent/EP2106305A1/fr
Application granted granted Critical
Publication of EP2106305B1 publication Critical patent/EP2106305B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/38—Torches, e.g. for brazing or heating
    • F23D14/40—Torches, e.g. for brazing or heating for welding
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/46—Details, e.g. noise reduction means
    • F23D14/48—Nozzles
    • F23D14/52—Nozzles for torches; for blow-pipes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/46—Details, e.g. noise reduction means
    • F23D14/48—Nozzles
    • F23D14/52—Nozzles for torches; for blow-pipes
    • F23D14/54—Nozzles for torches; for blow-pipes for cutting or welding metal
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/46—Details, e.g. noise reduction means
    • F23D14/84—Flame spreading or otherwise shaping
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2900/00—Special features of, or arrangements for burners using fluid fuels or solid fuels suspended in a carrier gas
    • F23D2900/14—Special features of gas burners
    • F23D2900/14003—Special features of gas burners with more than one nozzle

Definitions

  • the present invention relates to a device for flame straightening according to the preamble of claim 1.
  • Metallic structures in particular steel structures, which have been produced by welding and / or by forming, generally have deviations in form and / or deviations which must be compensated by subsequent straightening.
  • the most common method of straightening metallic parts is so-called flame straightening. Flame straightening is often used for technological or industrial safety reasons.
  • the arc initiation point on the workpiece surface causes localized smudges, in particular may be considered disadvantageous in terms of strength.
  • a straightening of workpieces by resistance or induction heating is very complex in the implementation.
  • the size of the Flammrichtbrenners is determined by the type of material and by the thickness of the sheet to be machined. For sheets up to about three millimeters, for example for structural steel, the burner size is selected as in welding.
  • the gas supply is to be designed according to the size of the flame jet burner and depending on the extent of the straightening work.
  • the fuel gas in particular for the acetylene, as well as for the oxygen, the coupling of several gas cylinders may be required.
  • a soldering torch with two burner nozzles which are arranged at an angle to each other, so that intersect the axes of the two burner nozzles in the direction of the processing point, discloses the DE 44 29 069 .
  • a Vosch for straightening railroad tracks with two burner nozzles shows the DE 196 19 171 wherein the arrangement of the two burner nozzle is made at a converging angle, whereby the device for straightening is optimally adapted to the shape of the railroad tracks.
  • the US 4,344,606 includes two burner nozzles, which are arranged convergently in the processing or in the flow direction.
  • a circular arrangement of burner nozzles describes the US 2,384,920 .
  • a device for straightening with many burner nozzles includes the US Pat. No.
  • a device for Flammenzin furnace with parallel nozzles is in the CA 1 238 262 described.
  • the present invention has the object, a device for flame straightening of the type mentioned in such a way that in the manufacturing process of a component or workpiece resulting form changes in a simple and efficient manner can be eliminated.
  • the device it should be possible with the device to be specified to work on closely aligned points of orientation in a simple way and to obtain a judicial success.
  • the present invention is based on the provision of a flame straightening device designed as, in particular switchable, multi-nozzle burners, for example two-nozzle burners, whose nozzles are arranged relative to one another such that the distance between the nozzles at the gas outlet location is lower than in conventional flame-screening devices.
  • the nozzle spacing at the gas outlet location is reduced such that it only amounts to about twenty millimeters (compared to conventionally about thirty millimeters) at the point of impact of the flames on the surface of the workpiece.
  • these nozzles are at a non-vanishing angle, that is at an angle not equal to zero degrees, in particular at an angle of about one degree to about sixty degrees, preferably at an angle of about three degrees to about thirty degrees, more preferably at an angle of about five degrees to about fifteen degrees, for example, at an angle on the order of about ten degrees, to each other.
  • the nozzles may advantageously be arranged either in one plane or three-dimensionally. If more than two nozzles are used, the number of simultaneously editable alignment points also increases. In arrangements with more than two nozzles, in particular, an arrangement of several Vs in one plane or of several Vs in parallel planes is recommended. The arrangement of the nozzles always results from the position of the directional points and the angular arrangement of the nozzle ensures that the distance between the nozzles is always sufficient.
  • the multi-nozzle, in particular two-nozzle Flammrichtbrenner according to the present invention, a cost effective and effective elimination of changes in shape in a component is made possible, wherein the changes in shape have very close adjacent directing points. Such changes in shape result, for example, when attaching a weld.
  • the present invention further relates to a method for flame straightening, characterized by the use of at least one device according to the kind set forth above.
  • the heat input during flame straightening in the component is thus advantageously concentrated at the straightening points.
  • the present invention relates to the use of at least one device according to the above-described type in flame straightening thin-walled sheets or thin-walled profiles;
  • the present invention is particularly useful in the thin sheet sector, for example, in the machining of profiles or sheets of about two millimeters to about twelve millimeters in thickness, such as those used in shipbuilding and other metalworking industries.
  • the present invention can be used, with the advantages in particular in narrow areas and in critical areas show where a local limitation of Flame refining process is beneficial.
  • an application of the present invention is also useful in laser or laser hybrid welded components that cause a different shape change on the component due to their weld geometry than conventionally welded seams.
  • narrow areas of the component B are heated to Flammrichttemperatur to cause a targeted upsetting of the heated area of the component B.
  • the workpiece B, the distortion, warpage and / or bending be brought back into its original form quickly and gently.
  • FIG. 12 is an exemplary embodiment of a two-nozzle device for flame-straightening, that is to say for a two-nozzle flame-jet burner 100 according to the present invention.
  • This straightening burner or flame straightening burner 100 can be advantageously used for eliminating angular distortion and for straightening sheet metal structures as well as shipboard skins and is characterized in that the two nozzles 10, 20 are arranged such that the distance between these nozzles 10, 20 at the gas outlet is lower than conventional Flammrichtbrennern.
  • the distance d Due to the reduction in the distance d when using the nozzle according to the invention over conventional flame direction burners, in which the distance is about 30 mm and more, very close-set directing points are machined.
  • the distance of the directing points results from previous work steps in the production and processing of the component or components.
  • welding profiles on sheets ie when a sheet is placed perpendicular to a second, depending on the welding process different points of reference.
  • the profile is applied by a welding process in which the heat input associated with the welding is very narrow and deep (as it is For example, in laser and laser hybrid welding the case), the weld metal penetrates very deep in the weld and after solidification, it is more or less between the sheet and profile.
  • the directional points are in this case very close together. However, if the welding process is carried out in such a way that the solidified weld metal fills the angle between the profile and the sheet metal to a large extent, two less close-fitting points are created. If the straightening points are now to be machined in one work step, the multi-nozzle straightening torch according to the invention is necessary for the tightly aligned straightening points, since in a conventional straightening torch the nozzles can not be mounted correspondingly close to one another. The processing of the reference point is carried out here advantageously using the method of heat screed.
  • these nozzles 10, 20 are not parallel to each other, but arranged at an angle to each other, namely at an angle w of about one degree to about sixty degrees, preferably from about three degrees to about thirty degrees, more preferably from about five degrees to about fifteen degrees, in the flow direction divergent;
  • an arrangement is recommended with an angle w of about ten degrees, the angle w by definition of the oriented in the direction of the respective flame F1 and F2 symmetry axes A1 and A2 of the two nozzles 10 and 20, in particular of the respective extensions of this Symmetryeachsen A1 and A2 of the two nozzles 10 and 20, is included as Fig. 2 removable.
  • the angle included by the direction of the respective flame F1 or F2 with the surface normal N of the workpiece B is about 0.5 w (cf. Fig. 2 ), that is about half of that angle, the symmetry axes A1 and A2 of the two nozzles 10, 20 include each other.
  • Such a V-shaped arrangement of the nozzles 10, 20 is particularly suitable for flame straightening thin-walled sheets or thin-walled profiles, for example in shipbuilding.
  • the heating of the nozzles 10, 20 is thus minimized by the V-position, which leads to an extension of the life of the nozzles 10, 20.
  • the nozzles 10, 20 are arranged on a transverse strut-like gas distribution pipe 34.
  • This gas distribution pipe 34 is associated with a holder 30 which can be placed on the surface S of the workpiece B and by means of wheels or rollers 32 on this surface S of the workpiece B is movable.
  • This type of arrangement of the nozzles 10, 20 allows a cost effective and effective elimination of changes in shape, which are close to each other on the component B, for example in the region of a weld.
  • the performance of the fuel gas, in particular acetylene is of particular importance.
  • the advantages of the invention are shown for all fuel gases, since the inventive advantage of the machinability of the dense gauge points adjusts for all fuel gases.
  • the variable fuel gas-oxygen flame F1, F2 any desired heat supply can be adjusted, so that an optimal and economical treatment of the workpiece B is possible.
  • Different fuel gases are mentioned, for example, in the standard EN ISO 5172, although the list is not exhaustive there. Compressed air can also be used as combustion partner instead of oxygen.
  • the burner size in turn, depending on the nature of the material B and / or on the thickness of the material B to choose.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gas Burners (AREA)
  • Laser Beam Processing (AREA)
  • Heat Treatment Of Articles (AREA)

Claims (8)

  1. Dispositif (100) d'usinage d'au moins un composant ou d'une pièce (B) au moyen d'un dressage à la flamme, en particulier d'un chalumeau de dressage à plusieurs buses, comprenant au moins deux buses (10, 20), au moins deux des buses (10, 20) étant disposées suivant un angle non nul (w) l'une par rapport à l'autre,
    caractérisé en ce que
    les buses (10, 20) sont disposées de manière divergente dans la direction d'écoulement, la distance (d) de la flamme (F1), en particulier de la flamme de gaz combustible-oxygène, par exemple de la flamme d'acétylène-oxygène, de la première buse (10) à la flamme (F2), en particulier à la flamme de gaz combustible-oxygène, par exemple à la flamme d'acétylène-oxygène, de la deuxième buse (20) au foyer respectif (P1, respectivement P2), présentant des valeurs dans une plage de dix millimètres à 25 millimètres, de préférence dans une plage de quinze millimètres à 23 millimètres.
  2. Dispositif selon la revendication 1, caractérisé en ce que l'angle (w) vaut un degré à soixante degrés, de préférence trois degrés à trente degrés, particulièrement préférablement cinq degrés à quinze degrés.
  3. Dispositif selon la revendication 1 ou 2, caractérisé en ce que les buses (10, 20) sont disposées sur un tube de distribution de gaz (34) réalisé notamment à la manière d'une traverse.
  4. Dispositif selon l'une quelconque des revendications 1 à 3, caractérisé en ce que
    - le tube de distribution de gaz (34) est associé à une fixation (30) et
    - la fixation (30) peut être posée sur la surface (S) du composant ou de la pièce (B) et/ou peut être déplacée sur la surface (S) du composant ou de la pièce (B).
  5. Dispositif selon la revendication 4, caractérisé en ce que la flamme (F1, F2) est une flamme d'acétylène-oxygène.
  6. Procédé de dressage à la flamme, caractérisé par l'utilisation d'au moins un dispositif (100) selon au moins l'une quelconque des revendications 1 à 5.
  7. Utilisation d'au moins un dispositif (100) selon au moins l'une quelconque des revendications 1 à 5 lors du dressage à la flamme de tôles à parois minces ou de profilés à parois minces, en particulier ayant une épaisseur d'environ deux millimètres à environ douze millimètres.
  8. Utilisation d'au moins un dispositif (100) selon au moins l'une quelconque des revendications 1 à 5 avec des composants ou des pièces (B) soudés au laser ou soudés par soudage laser hybride.
EP07856858.1A 2006-12-21 2007-12-18 Dispositif de dressage à la flamme Not-in-force EP2106305B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP07856858.1A EP2106305B1 (fr) 2006-12-21 2007-12-18 Dispositif de dressage à la flamme
PL07856858T PL2106305T3 (pl) 2006-12-21 2007-12-18 Urządzenie do prostowania płomieniowego
SI200731878A SI2106305T1 (sl) 2006-12-21 2007-12-18 Naprava za ravnanje s plamenom

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102006061800A DE102006061800A1 (de) 2006-12-21 2006-12-21 Vorrichtung zum Flammrichten
EP07005697A EP1935524A1 (fr) 2006-12-21 2007-03-20 Dispositif de redressage à flamme
PCT/EP2007/011135 WO2008077537A1 (fr) 2006-12-21 2007-12-18 Dispositif de dressage à la flamme
EP07856858.1A EP2106305B1 (fr) 2006-12-21 2007-12-18 Dispositif de dressage à la flamme

Publications (2)

Publication Number Publication Date
EP2106305A1 EP2106305A1 (fr) 2009-10-07
EP2106305B1 true EP2106305B1 (fr) 2016-10-26

Family

ID=37964742

Family Applications (2)

Application Number Title Priority Date Filing Date
EP07005697A Withdrawn EP1935524A1 (fr) 2006-12-21 2007-03-20 Dispositif de redressage à flamme
EP07856858.1A Not-in-force EP2106305B1 (fr) 2006-12-21 2007-12-18 Dispositif de dressage à la flamme

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP07005697A Withdrawn EP1935524A1 (fr) 2006-12-21 2007-03-20 Dispositif de redressage à flamme

Country Status (8)

Country Link
EP (2) EP1935524A1 (fr)
DE (1) DE102006061800A1 (fr)
ES (1) ES2610505T3 (fr)
PL (1) PL2106305T3 (fr)
RU (1) RU2454287C2 (fr)
SI (1) SI2106305T1 (fr)
UA (1) UA99821C2 (fr)
WO (1) WO2008077537A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103521556A (zh) * 2012-07-03 2014-01-22 中国有色金属工业第六冶金建设有限公司 一种十字钢焊接变形后火焰矫正的方法
CN106345855A (zh) * 2016-08-30 2017-01-25 江阴兴澄特种钢铁有限公司 Kocks轧机输出轴在线火焰矫直装置及矫直方法
CN107042250A (zh) * 2017-04-28 2017-08-15 广船国际有限公司 一种t型钢材加工装置及t型钢材矫正方法
CN107900140A (zh) * 2017-11-07 2018-04-13 中国二冶集团有限公司 利用龙门式切割机完成矫正钢桥梁面板翘曲变形的施工方法
DE102018113785A1 (de) * 2018-06-08 2019-12-12 Linde Ag Berührungsloses Temperaturmessverfahren und berührungsloses Temperaturüberwachungsverfahren zum Ermitteln einer Temperatur während einer Wärmebehandlung eines Werkstücks, Wärmebehandlung eines Werkstücks und Gerät für eine berührungslose Temperaturmessung
RU201019U1 (ru) * 2020-07-13 2020-11-24 Игорь Анатольевич Пудов Насадка для газопламенной обработки материалов
CN111760933A (zh) * 2020-07-15 2020-10-13 江西江联环境工程装配制造有限公司 一种火焰校正装置及校正方法
DE102021107386A1 (de) * 2021-03-24 2022-09-29 Dematic Gmbh Vorrichtung und Verfahren zum automatischen Entfernen einer Folienumwicklung von palettierten Produktstapeln

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AU535542B2 (en) * 1979-08-29 1984-03-29 Nicholas Thomas Edward Dillon Welding and cutting handpiece
CA1238262A (fr) * 1985-06-12 1988-06-21 Romeo T. Voiculescu Machine de faconnage tridimensionnel et(ou) de redressement de toles par chauffage a flamme vive, suivi du refroidissement a l'eau et(ou) a l'air
SU1422674A1 (ru) * 1986-03-17 1991-07-23 Украинский научно-исследовательский институт металлов Способ термической обработки рельсов
US5169422A (en) * 1991-04-11 1992-12-08 At&T Bell Laboratories Methods for heating elongated glass substrate
DE4429069C2 (de) * 1994-08-17 1998-01-29 Behr Gmbh & Co Lötbrenner
DE19619171C1 (de) * 1996-05-11 1997-05-28 Elektro Thermit Gmbh Verfahren zur Wärmebehandlung einer durch Zwischengußverschweißung hergestellten Schienenverbindung und Vorrichtung zur Durchführung des Verfahrens mit bestimmter Brenneranordnung
RU2214895C1 (ru) * 2002-09-09 2003-10-27 ООО "Компания "КОРД" Устройство для газопламенной обработки металлов
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Also Published As

Publication number Publication date
EP1935524A1 (fr) 2008-06-25
SI2106305T1 (sl) 2017-02-28
DE102006061800A1 (de) 2008-06-26
PL2106305T3 (pl) 2017-08-31
UA99821C2 (ru) 2012-10-10
ES2610505T3 (es) 2017-04-27
RU2454287C2 (ru) 2012-06-27
RU2009128020A (ru) 2011-01-27
WO2008077537A1 (fr) 2008-07-03
EP2106305A1 (fr) 2009-10-07

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