EP3054749B1 - Buse pour torche à arc plasma - Google Patents

Buse pour torche à arc plasma Download PDF

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Publication number
EP3054749B1
EP3054749B1 EP15159816.6A EP15159816A EP3054749B1 EP 3054749 B1 EP3054749 B1 EP 3054749B1 EP 15159816 A EP15159816 A EP 15159816A EP 3054749 B1 EP3054749 B1 EP 3054749B1
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EP
European Patent Office
Prior art keywords
nozzle
section
groove
external diameter
rear end
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.)
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Application number
EP15159816.6A
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German (de)
English (en)
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EP3054749A1 (fr
Inventor
Frank Laurisch
Volker Krink
Timo Grundke
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.)
Kjellberg Stiftung
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Kjellberg Stiftung
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.)
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Priority to SI201531661T priority Critical patent/SI3054749T1/sl
Application filed by Kjellberg Stiftung filed Critical Kjellberg Stiftung
Priority to HRP20211108TT priority patent/HRP20211108T8/hr
Priority to PL15159816T priority patent/PL3054749T3/pl
Priority to PCT/EP2016/051689 priority patent/WO2016124463A1/fr
Priority to MX2017010081A priority patent/MX2017010081A/es
Priority to KR1020177024734A priority patent/KR102528323B1/ko
Priority to JP2017541023A priority patent/JP6727731B2/ja
Priority to US15/548,434 priority patent/US10582606B2/en
Priority to RU2017130947A priority patent/RU2707499C2/ru
Priority to CA2975533A priority patent/CA2975533A1/fr
Priority to BR112017016526-0A priority patent/BR112017016526B1/pt
Priority to CN201680019083.6A priority patent/CN107750475B/zh
Priority to CA3194415A priority patent/CA3194415A1/fr
Publication of EP3054749A1 publication Critical patent/EP3054749A1/fr
Application granted granted Critical
Publication of EP3054749B1 publication Critical patent/EP3054749B1/fr
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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
    • H05H1/00—Generating plasma; Handling plasma
    • H05H1/24—Generating plasma
    • H05H1/26—Plasma torches
    • H05H1/32—Plasma torches using an arc
    • H05H1/34—Details, e.g. electrodes, nozzles
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
    • H05H1/00—Generating plasma; Handling plasma
    • H05H1/24—Generating plasma
    • H05H1/26—Plasma torches
    • H05H1/32—Plasma torches using an arc
    • H05H1/34—Details, e.g. electrodes, nozzles
    • H05H1/3478—Geometrical details
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
    • H05H1/00—Generating plasma; Handling plasma
    • H05H1/24—Generating plasma
    • H05H1/26—Plasma torches
    • H05H1/28—Cooling arrangements

Definitions

  • the present invention relates to nozzles for a liquid-cooled plasma arc torch head, an arrangement of a nozzle holder and a nozzle for a liquid-cooled plasma arc torch head, a plasma arc torch head and a plasma arc torch with the same.
  • a nozzle for a liquid cooled plasma arc torch having a body with an overall axial length, an inner surface and an outer surface, front and rear ends, and a nozzle opening at the front end.
  • the known nozzle has from the rear (from the rear end) first of all a receiving section for receiving the same in a nozzle holder and then a groove in which a round ring can be arranged or is arranged.
  • this can have the disadvantage that if the nozzle is built into a plasma torch head, the space for the cooling liquid, in particular cooling water, is limited towards the nozzle holder and thus the contact area between the cooling liquid and the nozzle is limited towards the rear.
  • Nozzles are also known in which a groove with a circular ring that can be arranged or arranged therein is located directly at the rear end thereof. This in turn has the Disadvantage that the O-ring can be damaged when it is inserted into a nozzle holder for plugging the nozzle into the nozzle holder, for example if, for example, elements such as projections in the nozzle holder, as shown in FIG DE 10 2007 005 316 B4 is described, are available for the defined guidance of the nozzle.
  • DE102008018530 A1 discloses a nozzle for a liquid cooled plasma torch.
  • the present invention is therefore based on the object of designing the known nozzle in such a way that damage to the round ring when inserting a nozzle into a nozzle holder is avoided, or at least reduced, and at the same time a larger area that can come into contact with cooling liquid is provided .
  • a nozzle for a liquid-cooled plasma arc torch head comprising a body with an overall axial length L, an inner surface and an outer surface, a front and a rear end and a nozzle opening at the front end, the outer surface of the body , starting from the rear end, a substantially cylindrical first section with an axial length L1, in which at the rear end of the body a preferably circumferential groove for or with a circular ring arranged in it extends to the rear end of the body a projection is limited which defines an outer diameter D11 of the body, and at the front end a centering surface for a nozzle holder is located, which defines an outer diameter D12 of the body, and has a second section adjoining it towards the front end with an axial length L2, the one ax ial stop surface for the nozzle holder at the boundary to the first section, which defines a third outer diameter D21 of the body, and tapers at least in a partial section to the front end
  • a conically or conically tapering section is meant in particular a section in which, if you connect the rearmost point (edge) of the section with the foremost point (edge) of the section, the line is parallel to the longitudinal axis of the nozzle or with a minimum Deviation of more than ⁇ 15 °.
  • a nozzle for a liquid-cooled plasma arc torch comprising a body with an overall axial length L, an inner surface and an outer surface, a front and a rear end of the body and a nozzle opening at the front end, the outer surface of the Body, starting from the rear end, a substantially cylindrical first section with an axial length L1, in which at the rear end of the body a preferably circumferential groove for or with a circular ring arranged therein, which leads to the rear end of the body is limited by a projection which defines an outer diameter D11 of the body, and a centering surface for a nozzle holder is located at a front end, which defines an outer diameter D12 of the body, and a second portion adjoining it toward the front end of the body with an axial one Length L2, which has an axial stop surface for the nozzle holder at the border to the first section, which defines a third outer diameter D21 of the body, and tapers at least in a partial section to the
  • this object is achieved by an arrangement comprising a nozzle holder and a nozzle according to one of Claims 1 to 16.
  • a liquid-cooled plasma arc torch head comprising a nozzle according to one of Claims 1 to 16 or an arrangement according to one of Claims 17 to 19.
  • the outer diameter D12 is the largest outer diameter of the first section.
  • the third outer diameter D21 is the largest outer diameter of the second section.
  • the largest outside diameter of the first section is advantageously smaller than the largest outside diameter of the second section.
  • At least one further groove is favorably located in the outer surface of the first section.
  • the at least one further groove has a cross-sectional area of at least 3 mm 2 .
  • cross-sectional area is intended to mean the area perpendicular to the longitudinal extent of the groove.
  • the further groove advantageously extends in the circumferential direction of the body.
  • the further groove extends in the circumferential direction of the body over an angle in the range from approximately 20 ° to approximately 360 °.
  • the further groove is limited in the direction of the front end of the body by a front projection running in the circumferential direction of the body, the outer surface of which is formed by the centering surface, and / or the further groove 2.11 in the direction of the rear end of the body through a rear projection extending in the circumferential direction of the body is formed.
  • the front projection defines an outside diameter or a local largest outside diameter of the body and the rear projection defines an outside diameter or a local largest outside diameter, the outside diameter or local largest outside diameter of the front and rear projections being the same or each other differ from each other by a maximum of about 0.2mm.
  • At least one groove and / or bore and / or recess and / or other opening and / or channel is / are advantageously located in the second section of the outer surface, which is / are in fluid connection with the further groove in the first section of the outer surface /stand.
  • a circumferential receiving area for connection to a nozzle holder is advantageously located on the outer surface of the body between the groove for a round ring or with a round ring arranged therein and the further groove.
  • a circumferential receiving area for connection to a nozzle holder is located on the outer surface of the body between the groove for a round ring or with a round ring arranged therein and the further groove,
  • the receiving area expediently has at least one radial projection and / or at least one radial depression.
  • the radial projections and / or Depressions can extend over only a limited angle in the circumferential direction and / or be arranged equidistantly.
  • the nozzle holder has on its connecting side a cylinder wall with an end ring surface that rests against the axial stop face of the nozzle, and with an inner face that rests against the centering face of the nozzle, preferably with little or no play.
  • the nozzle holder advantageously has, on the inner surface of the cylinder wall, a receiving area which is complementary to the receiving area of the nozzle.
  • the present invention provides both a liquid-cooled plasma arc torch head and a liquid-cooled plasma arc torch, each comprising a nozzle according to one of Claims 1 to 16 or an arrangement according to one of Claims 17 to 19.
  • the invention is based on the surprising finding that due to the special design of the outer surface of the nozzle, the groove with the round ring can be arranged as far as possible at the rear end of the nozzle without damaging the round ring, and at the same time a larger area that can come into contact with coolant is provided. In addition, the centering of the nozzle in the. Nozzle holder further improved.
  • the longest possible first section of the body of the nozzle enables good cooling of the transition point between a nozzle holder and the nozzle and good centering of the nozzle in the nozzle holder.
  • Good cooling of the transition point is necessary when igniting the pilot arc, which burns between the electrode and the nozzle of a plasma arc torch. It is also necessary if the plasma arc torch is operated indirectly. In the latter case, the plasma arc often burns with high electrical power or several kW between the electrode and the nozzle. Currents over 100 A can flow here.
  • the nozzle shown for a liquid-cooled plasma arc torch comprises a body 2 with an overall axial length L, i.e. along the longitudinal axis M1, an inner surface 2.20 and an outer surface 2.22, a front end 2.24 and a rear end 2.26 and a nozzle opening 2.28 at the front end 2.24.
  • the body 2 has a groove 2.38 at its front end 2.24.
  • the outer surface 2.22 of the body 2 starting from the rear end 2.26, has an essentially cylindrical first section 2.1 with an axial length L1, in which at the rear end 2.26 of the body 2 there is a circumferentially extending groove 2.10 for a circular ring (not shown), which is limited to the rear end 2.26 of the body 2 by a projection 2.30 which defines an outer diameter D11 of the body 2, and at the front end there is a centering surface A11 for a nozzle holder (not shown) which defines an outer diameter D12 of the body 2.
  • the outer surface has a second section 2.2, directly adjoining the first section 2.1 towards the front end 2.24, with an axial length L2, which has an axial stop surface B11 for a nozzle holder (not shown) at the border to the first section 2.1, which defines an outer diameter D21 of the body 2 and tapers at least in a partial section towards the front end 2.24 of the body in a substantially conical manner.
  • the first section 2.1 of the outer surface 2.22 thus has a particularly large outer surface A13 between the boundary between the first section 2.1 and the second section 2.2 and the groove 2.10, which, when the nozzle is installed in a plasma arc torch head (not shown), has a Cooling liquid can come into contact, whereby the cooling is improved.
  • the outside diameter D12 is the largest outside diameter of the first section 2.1 and the outside diameter D21 is the largest outside diameter of the second section 2.2, the largest outside diameter D12 of the first section 2.1 being smaller than the largest outside diameter D21 of the second section 2.2.
  • channel B13 in the second section 2.2 of the outer surface 2.22, which is in fluid connection with the first section 2.1 of the outer surface 2.22.
  • the channel B13 can also extend at least partially in the first section 2.1.
  • L12 8.2mm
  • L13 2.3mm
  • L1 10.5mm
  • Figure 2 shows a nozzle for a liquid-cooled plasma arc torch head (not shown), which has a body 2 with an overall axial length L, an inner surface 2.20 and an outer surface 2.22, a front end 2.24 and a rear end 2.26 and a nozzle opening 2.28 at the front end 2.24.
  • the body 2 has a groove 2.38 at its front end 2.24.
  • the outer surface 2.22 of the body 2 has an essentially cylindrical first section 2.1 with an axial length L1, in which at the rear end 2.26 of the body 2 there is a circumferentially extending groove 2.10 for a circular ring (not shown) which is limited to the rear end 2.26 of the body by a projection 2.30 which defines an outer diameter D11 of the body 2, and at the front end a centering surface A11 for a nozzle holder (not shown) which defines an outer diameter D12 of the body 2 .
  • the outer surface 2.22 has a second section 2.2, directly adjoining it towards the front end 2.24, with an axial length L2, which has an axial stop surface B11 for a nozzle holder at the border to the first section 2.1, which defines an outer diameter D21 of the body 2, and tapers substantially conically at least in a partial section towards the front end 2.24 of the body 2.
  • the dimensions D12 and D11 the same values and ratios or differences apply as with regard to those in FIG Figure 1 shown nozzle.
  • the further groove 2.11 is limited in the direction of the front end 2.24 of the body 2 by a front projection 2.34 extending in the circumferential direction of the body 2, the outer surface of which is formed by the centering surface A11, and is in The direction of the rear end 2.26 of the body 2 is limited by a rear projection 2.36 running in the circumferential direction of the body 2, the outer surface of which is formed by the surface or centering surface A12.
  • the nozzle shown are the same as for L12 / L13, L12 / L1 and D12 / L1.
  • the front projection 2.34 defines a local largest outer diameter D12 of the body 2 and the rear projection 2.36 defines a local largest outside diameter D12.
  • the local largest outer diameters of the front and rear projections 2.34 and 2.36 are of the same size.
  • the local largest outer diameters of the front and rear projections do not have to be of the same size.
  • the rear projection 2.36 should not be larger than the front projection 2.34. Due to the front and rear projections 2.34 and 2.36 with identical outer diameter D12, there are two contact surfaces in this nozzle which are in contact with a nozzle holder (not shown) when the nozzle is installed. These are the centering surface A11 and the surface or centering surface A12.
  • the second section 2.2 has a groove B12 which is in fluid connection with the further groove 2.11.
  • the groove B12 can also extend at least partially in the first section 2.1.
  • Figure 3 shows a nozzle for a liquid-cooled plasma arc torch with a body 2, which has an overall axial length L, i.e. along the longitudinal axis M1, an inner surface 2.20 and an outer surface 2.22, a front end 2.24 and a rear end 2.26 and a nozzle opening 2.28 at the front end 2.24 having.
  • the outer surface 2.22 of the body 2, starting from the rear end 2.26, has a first section 2.1 with the same features as the first section 2.1 in FIG Figure 2
  • the second section 2.2, in particular the front end 2.24, is designed differently by way of example.
  • the body 2 has 2.24 at the front end in contrast to the body of FIG Figure 2 no groove 2.38.
  • the nozzle built into a plasma arc torch head Figure 3 is in Figure 6 shown.
  • the space between the nozzle and the nozzle cap 3 is sealed by touching the metallic surfaces of the nozzle and the nozzle cap 3.
  • another inner contour of the nozzle or the body is shown by way of example. This nozzle can be used, for example, for indirect operation.
  • FIG. 12 shows a liquid-cooled plasma arc torch head with the nozzle of FIG Figure 1 .
  • the body 2 of the nozzle is fixed in a nozzle holder 7 and is supported by a Nozzle cap 3 fixed.
  • An electrode 1 is arranged in the inner cavity of the body 2.
  • the plasma arc torch head also has a nozzle protection cap 5, which is held by a nozzle protection cap holder 8.
  • a secondary gas duct 6 for secondary gas SG is arranged between the nozzle cap 3 and the nozzle protection cap 5.
  • the secondary gas SG flows through openings (not shown) in the secondary gas duct 6, then through the space between the nozzle cap 3 and nozzle protection cap 5 and finally out of the front opening 5.1 of the nozzle protection cap 5.
  • the nozzle and nozzle cap 3 from one part consist.
  • plasma arc torch heads that are operated without secondary gas. These then usually have no nozzle protection cap, no nozzle protection cap holder and no secondary gas duct.
  • the cooling liquid flows via the cooling liquid flow WV through the nozzle holder 7, flows through the space 10 between the nozzle holder 7 and nozzle, then flows through the channels B13 of the nozzle into the space between the nozzle and the nozzle cap 3 before it flows back through the cooling liquid return WR.
  • the first section 2.1 of the body 2 is inserted into the nozzle holder 7.
  • An axial stop surface B11 of the body 2 meets an axial stop surface B71 of the nozzle holder 7. This determines the positioning of the nozzle or the body 2 along the longitudinal axis M of the plasma arc torch head, the centering surface A11 of the body 2 and the centering surface A71 of the nozzle holder 7 determine the centering of the nozzle or the body 2 in the nozzle holder 7. This arrangement achieves good centering.
  • the cooling liquid flows through the space 10 between the nozzle holder 7 and nozzle or body 2.
  • FIG. 12 shows a liquid-cooled plasma arc torch head with the nozzle of FIG Figure 2 .
  • the body 2 of the nozzle is fastened in a nozzle holder 7 and is fixed by a nozzle cap 3.
  • An electrode 1 is arranged in the inner cavity of the body 2. Between the electrode 1 and the body 2 there is a plasma gas duct 4 for plasma gas PG, which flows through the plasma gas duct 4, then through the space between the electrode 1 and the nozzle and finally out of the nozzle opening 2.28.
  • the plasma arc torch head also has a nozzle protection cap 5, which is held by a nozzle protection cap holder 8.
  • a secondary gas duct 6 for secondary gas SG is arranged between the nozzle cap 3 and the nozzle protection cap 5.
  • the secondary gas SG flows through openings (not shown) in the secondary gas duct 6, then through the space between the nozzle cap 3 and nozzle protection cap 5 and finally out of the front opening 5.1 of the nozzle protection cap 5.
  • the nozzle and nozzle cap 3 from one part consist.
  • plasma arc torch heads that are operated without secondary gas. These then usually have no nozzle protection cap, no nozzle protection cap holder and no secondary gas duct.
  • the coolant flows via the coolant flow WV through the nozzle holder 7, flows through the space 10 between the nozzle holder 7 and the nozzle, through the groove 2.11 and the Centering surface A71 is formed, then flows through the groove B12 of the nozzle or of the body 2, which is in fluid connection with the groove 2.11, into the 2 space between the nozzle and nozzle cap 3, before it flows back through the cooling liquid return WR.
  • the centering is according to the arrangements Figures 5 and 6th even better than in Figure. 4th , since the centering of the nozzle takes place via the surfaces A11 and A12 with the surface A71 of the nozzle holder 7.
  • the contact surface formed in this way between nozzle or body 2 and nozzle holder 7 is larger, which also increases the heat transfer and current transfer between nozzle and nozzle holder 7. There is also no damage to the O-ring 2.42 in the groove 2.10 (see Figure 3 ).

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Geometry (AREA)
  • Plasma Technology (AREA)
  • Arc Welding In General (AREA)
  • Nozzles (AREA)

Claims (21)

  1. Buse pour une tête de torche à arc de plasma refroidie par liquide, comprenant :
    un corps (2) ayant une longueur axiale totale L, une surface intérieure (2.20) et une surface extérieure (2.22), une extrémité avant (2.24) et une extrémité arrière (2.26) et une ouverture de buse (2.28) à l'extrémité avant (2.24),
    la surface extérieure (2.22) du corps (2), partant de l'extrémité arrière (2.26), présentant une première portion essentiellement cylindrique (2.1) de longueur axiale L1, dans laquelle se trouve, à l'extrémité arrière (2.26) du corps (2), une rainure (2.10) s'étendant de préférence dans la direction périphérique, pour ou avec une bague circulaire (2.42) disposée dans celle-ci, qui est limitée vers l'extrémité arrière (2.26) du corps (2) par une saillie (2.30) qui définit un premier diamètre extérieur D11 du corps (2), et à l'extrémité avant, une surface de centrage (A11) pour un élément de retenue de buse (7), laquelle définit un deuxième diamètre extérieur D12 du corps (2), et une deuxième portion (2.2) de longueur axiale L2, se raccordant à la première vers l'extrémité avant (2.24), laquelle présente une surface de butée axiale (B11) pour l'élément de retenue de buse (7) à la limite avec la première portion (2.1), qui définit un troisième diamètre extérieur (D21) du corps (2), et laquelle se rétrécit essentiellement sous forme conique au moins dans une portion partielle vers l'extrémité avant (2.24) du corps (2),
    caractérisée en ce que l'on a : D 12 − D 11 ≥ 1,5 mm
    Figure imgb0006
     et/ou D 12 − D 11 / D 12 ≥ 0,07 .
    Figure imgb0007
  2. Buse pour une torche à arc de plasma refroidie par liquide, comprenant :
    un corps (2) ayant une longueur axiale totale L, une surface intérieure (2.20) et une surface extérieure (2.22), une extrémité avant (2.24) et une extrémité arrière (2.26) et une ouverture de buse (2.28) à l'extrémité avant (2.24),
    la surface extérieure (2.22) du corps (2), partant de l'extrémité arrière (2.26) du corps (2), présentant une première portion essentiellement cylindrique (2.1) de longueur axiale L1, dans laquelle se trouve, à l'extrémité arrière (2.26) du corps (2), une rainure (2.10) s'étendant de préférence dans la direction périphérique, pour ou avec une bague circulaire (2.42) disposée dans celle-ci, qui est limitée vers l'extrémité arrière (2.26) du corps (2) par une saillie (2.30) qui définit un premier diamètre extérieur D11 du corps (2), et à une extrémité avant, une surface de centrage (A11)pour un élément de retenue de buse (7), laquelle définit un deuxième diamètre extérieur D12 du corps (2), et une deuxième portion (2.2) de longueur axiale L2, se raccordant à la première vers l'extrémité avant (2.24) du corps (2), laquelle présente une surface de butée axiale (B11) pour l'élément de retenue de buse (7) à la limite avec la première portion (2.1), qui définit un troisième diamètre extérieur (D21) du corps (2), et laquelle se rétrécit essentiellement sous forme conique au moins dans une portion partielle vers l'extrémité avant (2.26) du corps (2),
    caractérisée en ce que l'on a, pour la longueur L12 de la distance entre la surface de butée axiale (B11) de la deuxième portion (2.2) et la ligne d'arête suivante (2.32) de la rainure (2.10) et la longueur L13 de la distance entre ladite ligne d'arête (2.32) et l'extrémité arrière (2.26) du corps (2) :
    L12/L13 ≥ 3, particulièrement préférablement L 12 / L 13 ≥ 3,3
    Figure imgb0008
     et/ou
    en ce que l'on a, pour la longueur L12 de la distance entre la surface de butée axiale (B11) de la deuxième portion (2.2) et la ligne d'arête suivante (2.32) de la rainure (2.10) et la longueur L1 de la première portion (2.1) :
    L12/L1 ≥ 0,75 et particulièrement préférablement L 12 / L 1 ≥ 0,77 ,
    Figure imgb0009
     et/ou l'on a D 12 / L 1 ≤ 2,3 .
    Figure imgb0010
  3. Buse selon la revendication 1 ou 2, caractérisée en ce que le deuxième diamètre extérieur D12 est le plus grand diamètre extérieur de la première portion (2.1).
  4. Buse selon l'une quelconque des revendications 1 à 3, caractérisée en ce que le troisième diamètre extérieur (D21) est le plus grand diamètre extérieur de la deuxième portion (2.2).
  5. Buse selon l'une quelconque des revendications précédentes, caractérisée en ce le plus grand diamètre extérieur de la première portion (2.1) est inférieur au plus grand diamètre extérieur de la deuxième portion (2.2).
  6. Buse selon l'une quelconque des revendications précédentes, caractérisée en ce qu'au moins une rainure supplémentaire (2.11) se trouve dans la surface extérieure (2.22) de la première portion (2.1) .
  7. Buse selon la revendication 6, caractérisée en ce que l'au moins une rainure supplémentaire (2.11) présente une surface en section transversale d'au moins 3 mm2.
  8. Buse selon la revendication 6 ou 7, caractérisée en ce que la rainure supplémentaire (2.11) s'étend dans la direction périphérique du corps (2).
  9. Buse selon l'une quelconque des revendications 6 à 8, caractérisée en ce que la rainure supplémentaire (2.11) s'étend dans la direction périphérique du corps (2) sur un angle dans une plage d'environ 20° à environ 360°.
  10. Buse selon l'une quelconque des revendications 6 à 9, caractérisée en ce que la rainure supplémentaire (2.11) est délimitée, dans la direction de l'extrémité avant (2.24) du corps (2), par une saillie avant (2.34) s'étendant dans la direction périphérique du corps (2), dont la surface extérieure est formée par la surface de centrage (A11), et/ou la rainure supplémentaire (2.11) est limitée dans la direction de l'extrémité arrière (2.26) du corps (2) par une saillie arrière (2.36) s'étendant dans la direction périphérique du corps (2).
  11. Buse selon la revendication 10, caractérisée en ce que la saillie avant (2.34) définit un diamètre extérieur ou un diamètre extérieur maximal local du corps (2), et la saillie arrière (2.36) définit un diamètre extérieur ou un diamètre extérieur local maximale, le diamètre extérieur ou le diamètre extérieur local maximal des saillies avant (2.34) et arrière (2.36) étant identiques ou différant l'un de l'autre d'environ 0,2 mm au maximum.
  12. Buse selon l'une quelconque des revendications précédentes, caractérisée en ce qu'au moins une rainure et/ou un alésage et/ou un renfoncement et/ou une autre ouverture et/ou un canal se trouvent dans la deuxième portion (2.2) de la surface extérieure (2.22), lesquels sont en liaison fluidique avec la première portion (2.1) de la surface extérieure (2.22).
  13. Buse selon l'une quelconque des revendications 6 à 12, caractérisée en ce qu'au moins une rainure et/ou un alésage et/ou un renfoncement et/ou une autre ouverture et/ou un canal se trouvent dans la deuxième portion (2.2) de la surface extérieure (2.22), lesquels sont en liaison fluidique avec la rainure supplémentaire (2.11) dans la première portion (2.1) de la surface extérieure (2.22).
  14. Buse selon l'une quelconque des revendications 1 à 5, caractérisée en ce qu'une région de réception périphérique pour la connexion à un élément de retenue de buse se trouve sur la surface extérieure (2.22) du corps (2) entre la rainure (2.10) pour ou avec une bague circulaire disposée dans celle-ci, et la surface de butée axiale (B11) .
  15. Buse selon l'une quelconque des revendications 6 à 13, caractérisée en ce qu'une région de réception périphérique pour la connexion à un élément de retenue de buse se trouve sur la surface extérieure (2.22) du corps (2) entre la rainure (2.10) pour ou avec une bague circulaire disposée dans celle-ci, et la rainure supplémentaire (2.11) .
  16. Buse selon la revendication 14 ou 15, caractérisée en ce que la région de réception présente au moins une saillie radiale et/ou au moins un renfoncement radial.
  17. Agencement constitué d'un élément de retenue de buse et d'une buse selon l'une quelconque des revendications précédentes.
  18. Agencement selon la revendication 17, caractérisé en ce que l'élément de retenue de buse présente, sur son côté de liaison, une paroi cylindrique avec une surface de bague frontale qui s'applique contre la surface de butée axiale (B11) de la buse, et avec une surface intérieure qui s'applique contre la surface de centrage (A11) de la buse, de préférence sans jeu ou avec un faible jeu.
  19. Agencement selon la revendication 17 ou 18, caractérisé en ce que l'élément de retenue de buse présente, sur la surface intérieure de la paroi cylindrique, une région de réception complémentaire de la région de réception de la buse.
  20. Tête de torche à arc de plasma refroidie par liquide, comprenant une buse selon l'une quelconque des revendications 1 à 16 ou un agencement selon l'une quelconque des revendications 17 à 19.
  21. Torche à arc de plasma refroidie par liquide comprenant une buse selon l'une quelconque des revendications 1 à 16 ou un agencement selon l'une quelconque des revendications 17 à 19.
EP15159816.6A 2015-02-03 2015-03-19 Buse pour torche à arc plasma Active EP3054749B1 (fr)

Priority Applications (13)

Application Number Priority Date Filing Date Title
HRP20211108TT HRP20211108T8 (hr) 2015-02-03 2015-03-19 Mlaznica za plamenik s lukom plazme
PL15159816T PL3054749T3 (pl) 2015-02-03 2015-03-19 Dysza do plazmowego palnika łukowego
SI201531661T SI3054749T1 (sl) 2015-02-03 2015-03-19 Šoba za plazemski obločni gorilnik
US15/548,434 US10582606B2 (en) 2015-02-03 2016-01-27 Nozzle for a plasma arc torch
KR1020177024734A KR102528323B1 (ko) 2015-02-03 2016-01-27 플라즈마 아크 토치용 노즐
JP2017541023A JP6727731B2 (ja) 2015-02-03 2016-01-27 プラズマアークトーチのためのノズル
PCT/EP2016/051689 WO2016124463A1 (fr) 2015-02-03 2016-01-27 Buse pour chalumeau à arc à plasma
RU2017130947A RU2707499C2 (ru) 2015-02-03 2016-01-27 Сопло для плазменно-дуговой горелки
CA2975533A CA2975533A1 (fr) 2015-02-03 2016-01-27 Buse pour chalumeau a arc a plasma
BR112017016526-0A BR112017016526B1 (pt) 2015-02-03 2016-01-27 Bico para uma tocha de arco voltaico a plasma arrefecida por líquido, disposição de um suporte para bico e um bico, cabeça de tocha de arco voltaico a plasma arrefecida por líquido e tocha de arco voltaico a plasma arrefecida por líquido
CN201680019083.6A CN107750475B (zh) 2015-02-03 2016-01-27 用于等离子电弧燃烧器的喷嘴
CA3194415A CA3194415A1 (fr) 2015-02-03 2016-01-27 Buse pour chalumeau a arc a plasma
MX2017010081A MX2017010081A (es) 2015-02-03 2016-01-27 Tobera para soplete de arco electrico de plasma.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102015101532.3A DE102015101532A1 (de) 2015-02-03 2015-02-03 Düse für Plasmalichtbogenbrenner

Publications (2)

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EP3054749A1 EP3054749A1 (fr) 2016-08-10
EP3054749B1 true EP3054749B1 (fr) 2021-04-21

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EP15159816.6A Active EP3054749B1 (fr) 2015-02-03 2015-03-19 Buse pour torche à arc plasma

Country Status (18)

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US (1) US10582606B2 (fr)
EP (1) EP3054749B1 (fr)
JP (1) JP6727731B2 (fr)
KR (1) KR102528323B1 (fr)
CN (1) CN107750475B (fr)
BR (1) BR112017016526B1 (fr)
CA (2) CA2975533A1 (fr)
DE (1) DE102015101532A1 (fr)
DK (1) DK3054749T3 (fr)
ES (1) ES2874902T3 (fr)
HR (1) HRP20211108T8 (fr)
HU (1) HUE055588T2 (fr)
MX (1) MX2017010081A (fr)
PL (1) PL3054749T3 (fr)
PT (1) PT3054749T (fr)
RU (1) RU2707499C2 (fr)
SI (1) SI3054749T1 (fr)
WO (1) WO2016124463A1 (fr)

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CZ308964B6 (cs) * 2018-09-30 2021-10-20 B&Bartoni, spol. s r.o. Sestava trysky s adaptérem pro použití v kapalinou chlazeném dvouplynovém plazmovém hořáku

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JP2005118816A (ja) * 2003-10-16 2005-05-12 Koike Sanso Kogyo Co Ltd プラズマトーチ用のノズル
WO2006113737A2 (fr) * 2005-04-19 2006-10-26 Hypertherm, Inc. Chalumeau a arc de plasma fournissant une injection de flux de protection angulaire
KR20080005946A (ko) * 2005-05-11 2008-01-15 하이퍼썸, 인크. 플라즈마 아크 토치 애플리케이션에서의 개별 가스 젯의생성
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CN203316895U (zh) * 2013-05-09 2013-12-04 上海瑞能焊割有限公司 等离子切割喷嘴

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Publication number Publication date
US20180020533A1 (en) 2018-01-18
BR112017016526B1 (pt) 2023-11-14
EP3054749A1 (fr) 2016-08-10
KR102528323B1 (ko) 2023-05-03
HUE055588T2 (hu) 2021-12-28
CN107750475B (zh) 2020-12-11
PL3054749T3 (pl) 2021-10-25
CA2975533A1 (fr) 2016-08-11
RU2017130947A (ru) 2019-03-04
BR112017016526A2 (pt) 2018-04-10
DE102015101532A1 (de) 2016-08-04
RU2707499C2 (ru) 2019-11-27
PT3054749T (pt) 2021-05-28
ES2874902T3 (es) 2021-11-05
DK3054749T3 (da) 2021-06-28
HRP20211108T1 (hr) 2021-10-15
CA3194415A1 (fr) 2016-08-11
WO2016124463A1 (fr) 2016-08-11
JP2018508949A (ja) 2018-03-29
US10582606B2 (en) 2020-03-03
CN107750475A (zh) 2018-03-02
JP6727731B2 (ja) 2020-07-22
SI3054749T1 (sl) 2021-12-31
RU2017130947A3 (fr) 2019-06-21
HRP20211108T8 (hr) 2022-01-07
KR20170134347A (ko) 2017-12-06
MX2017010081A (es) 2018-03-07

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