CA2634957A1 - Connection between a plasma torch wearing part and a plasma torch wearing part holder, plasma torch wearing part and plasma torch wearing part holder - Google Patents

Connection between a plasma torch wearing part and a plasma torch wearing part holder, plasma torch wearing part and plasma torch wearing part holder Download PDF

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Publication number
CA2634957A1
CA2634957A1 CA002634957A CA2634957A CA2634957A1 CA 2634957 A1 CA2634957 A1 CA 2634957A1 CA 002634957 A CA002634957 A CA 002634957A CA 2634957 A CA2634957 A CA 2634957A CA 2634957 A1 CA2634957 A1 CA 2634957A1
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Canada
Prior art keywords
gamma
plasma torch
beta
alpha
epsilon
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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
CA002634957A
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French (fr)
Other versions
CA2634957C (en
Inventor
Ralf-Peter Reinke
Timo Grundke
Frank Laurisch
Volker Krink
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 Finsterwalde Plasma und Maschinen GmbH
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Kjellberg Finsterwalde Plasma und Maschinen GmbH
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Publication date
Application filed by Kjellberg Finsterwalde Plasma und Maschinen GmbH filed Critical Kjellberg Finsterwalde Plasma und Maschinen GmbH
Priority to CA2634957A priority Critical patent/CA2634957C/en
Publication of CA2634957A1 publication Critical patent/CA2634957A1/en
Application granted granted Critical
Publication of CA2634957C publication Critical patent/CA2634957C/en
Active legal-status Critical Current
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Classifications

    • 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

Abstract

Connection between a plasma torch wearing part and a plasma torch wearing part holder, plasma torch wearing part and plasma torch wearing part holder.

Claims (39)

1. Connection between a plasma torch wearing part and a plasma torch wearing part holder, characterized in that either the plasma torch wearing part holder or the plasma torch wearing part has on its connecting side a first cylinder wall with an outer surface and a circular ring surface (62), as well as an external diameter D41a and the other of said plasma torch wearing part holder and plasma torch wearing part has on its connecting side a second cylinder wall with an inner surface and an internal diameter D52, D52 > D41a and npro radial projections and ndep radial depressions pass around the inner surface, npro, ndep >= 0 and npro + ndep = n >= 5, and on the outer surface is provided an identical number of in particular corresponding depressions or projections in engagement therewith and in the case of n = 5 the sum of two adjacent midpoint angles (.alpha. and .beta. or .beta.
and .gamma. or .gamma. and .delta.5 or .delta.b and .epsilon. or .epsilon. and .alpha.) by which the projections or depressions or a projection and a depression are displaced relative to one another is not >= 180° and the five midpoint angles (.alpha., .beta., .gamma., .delta., .epsilon.) are of differing magnitude, or in the case of n > 5 the sum of two adjacent midpoint angles (.alpha. and .beta. or .beta.
and .gamma. or .gamma. and .delta. or .delta. and .epsilon. or .epsilon. and .alpha.) by which the projections or depressions or a projection and a depression are displaced relative to one another is not > 180° and the n > 5 midpoint angle (.alpha., .beta., .gamma., .delta., .epsilon.) differ, or at least two of the n > 5 midpoint angles (.alpha., .beta., .gamma., .delta., .epsilon.) are of the same magnitude and then in each case the sum of the twice occurring midpoint angles (.alpha. or .beta. or .gamma. or .delta. or .epsilon.) and the midpoint angles adjacent thereto on either side (.alpha. and .gamma. or .beta. and .delta. or .gamma. and .epsilon. or .gamma. and .alpha. or .epsilon. and .beta.) is < 180°.
2. Connection according to claim 1, characterized in that the sum of two adjacent midpoint angles (.alpha. and .beta. or .beta. and .gamma. or .gamma.
and .delta. or .beta. and .epsilon. or .epsilon. and .alpha.) is <= 170°.
3. Connection according to claim 1 or 2, characterized in that n = 5 and the sum of two adjacent midpoint angles (.alpha. and .beta. or .beta. and .gamma.
or .gamma. and .delta. or .delta. and .epsilon.
or .epsilon. and .alpha.) is not repeated.
4. Connection according to one of the claims 1 to 3, characterized in that the plasma torch wearing part has the first cylinder wall and the plasma torch wearing part holder the second cylinder wall.
5. Connection according to one of the claims 1 to 4, characterized in that the ratio of the surfaces of a projection and an associated depression is in the range 1:1 to 1:4.
6. Connection according to one of the preceding claims, characterized in that the ratio of the surfaces of the npro projections and/or the ndep depressions is in the range 1:1 to 1:4.
7. Connection according to one of the claims 1 to 5, characterized in that there are npro identical radial projections and ndep identical radial depressions.
8. Connection according to one of the claims 1 to 7, characterized in that the depressions are rectangular slots (431, 432, 433, 434, 435; 731, 732, 733, 734, 735).
9. Connection according to one of the preceding claims, characterized in that on the inner surface of the second cylinder wall in the connection direction upstream of the projections and/or depressions is provided a circumferential, radially outwardly extending chamfer (52, 62).
10. Connection according to one of the preceding claims, characterized in that npro > 5.
11. Connection according to one of the claims 1 to 9, characterized in that ndep > 5.
12. Connection according to one of the preceding claims, characterized in that a holding together device is provided for holding together the plasma torch wearing part and plasma torch wearing part holder.
13. Connection according to one of the preceding claims, characterized in that the plasma torch wearing part is a nozzle (4), an electrode (7), a nozzle protection cap (9) or a gas guidance part, particularly a plasma gas guidance part (3).
14. Connection according to one of the preceding claims, characterized in that the plasma torch wearing part holder is an integral part of a plasma torch.
15. Connection according to one of the claims 1 to 13, characterized in that the plasma torch wearing part holder is detachably connected to a plasma torch.
16. Connection according to one of the claims 1 to 15, characterized in that the plasma torch is a plasma cutting torch.
17. Connection according to one of the claims 1 to 15, characterized in that the plasma torch is a plasma welding torch.
18. Plasma torch wearing part, characterized in that on its connection side it has a cylinder wall with an outer surface and a circular ring surface (62), ndeP radial depressions and npro radial projections passing round the outer surface (41.alpha.), ndeP, npro >= 0 and ndep +
npro > 5 and in the case of n = 5 the sum of two adjacent midpoint angles (.alpha. and .beta. or .beta.
and .gamma. or .gamma. and .delta. or .delta. and .epsilon. or .epsilon. and .alpha.) by which the projections or depressions or a projection and a depression are displaced relative to one another is not >= 180° and the five midpoint angles (.alpha., .beta., .gamma., .delta., .epsilon.) differ, or in the case of n >5 the sum of two adjacent midpoint angles (.alpha. and .beta. or .beta. and .gamma.
or .gamma. and .delta. or .delta. and .epsilon. or .epsilon. and .alpha.) by which the projections or depressions or a projection and a depression are displaced relative to one another is not >= 180° and the n > 5 midpoint angles (.alpha., .beta., .gamma., .delta., .epsilon.) differ or at least two of the n >5 midpoint angles (.alpha., .beta., .gamma., .delta., .epsilon.) are of the same magnitude and then in each case the sum of the twice occurring midpoint angles (.alpha.
or .beta.
or .gamma. or .delta. or .epsilon.) and the midpoint angles adjacent thereto on either side (.alpha.
and .gamma. or .beta. and .delta. or .gamma. and .epsilon. or .gamma. and .alpha. or .epsilon. and .beta.) is < 180°.
19. Plasma torch wearing part according to claim 18, characterized in that the sum of two adjacent midpoint angles (.alpha. and .beta. or .beta. and .gamma. or .gamma. and .delta. or .delta.
and .epsilon. or .epsilon. and .alpha.) is < 170°.
20. Plasma torch wearing part according to claim 18 or 19, characterized in that n = 5 and the sum of two adjacent midpoint angles (.alpha. and .beta. or .beta. and .gamma. or .gamma. and .delta. or .delta. and .epsilon. or .epsilon. and .alpha.) is not repeated.
21. Plasma torch wearing part according to one of the claims 18 to 20, characterized in that the ratio of the surfaces of a projection and an associated depression is in the range 1:1 to 1:4.
22. Plasma torch wearing part according to one of the claims 18 to 21, characterized in that the ratio of the surfaces of the npro projections and/or ndep depressions is in the range 1:1 to 1:4.
23. Plasma torch wearing part according to one of the claims 18 to 21, characterized in that there are npro identical radial projections and ndep identical radial depressions.
24. Plasma torch wearing part according to one of the claims 18 to 23, characterized in that the depressions are rectangular slots (431, 432, 433, 434, 435; 731, 732, 733; 734; 735).
25. Plasma torch wearing part according to one of the claims 18 to 24, characterized in that ndep >= 5.
26. Plasma torch wearing part according to one of the claims 18 to 24, characterized in that npro >= 5.
27. Plasma torch wearing part according to one of the claims 18 to 26, characterized in that it is a nozzle (4), an electrode (7), a nozzle protection cap (9) or a gas guidance part, particularly a plasma gas guidance part (3).
28. Plasma torch wearing part holder, characterized in that it has on its connection side a cylinder wall (51; 61) with an inner surface (51a; 61a), n pro radial projections and n dep radial depressions passing round the inner surface (51a; 61a), n pro, n dep >= 0 and n pro + n dep >= 5 and in the case of n = 5 the sum of two adjacent midpoint angles (.alpha. and .beta. or .beta.
and .gamma. or .gamma. and .delta. or .delta. and .epsilon. or .epsilon. and .alpha.) by which the projections or depressions or a projection and a depression are displaced relative to one another is not >= 180° and the five midpoint angles (.alpha., .beta., .gamma., .delta., .epsilon.) differ, or in the case of n > 5 the sum of two adjacent midpoint angles (.alpha. and .beta. or .beta.
and .gamma. or .gamma. and .delta. or .delta. and .epsilon. or .epsilon. and .alpha.) by which the projections or depressions or a projection and a depression are displaced relative to one another is not >= 180° and the n > 5 midpoint angles (.alpha., .beta., .gamma., .delta., .epsilon.) differ, or at least two of the n > 5 midpoint angles (.alpha., .beta., .gamma., .delta., .epsilon.) are of the same magnitude, and then in each case the sum of the twice occurring midpoint angles (.alpha. or .beta. or .gamma. or .delta. or .epsilon.) and the midpoint angles adjacent thereto on either side (.alpha. and .gamma. or .beta. and .delta. or .gamma. and .epsilon. or .gamma. and .alpha. or .epsilon. and .beta.) is < 180°.
29. Plasma torch wearing part holder according to claim 28, characterized in that the sum of two adjacent midpoint angles (.alpha., .beta., .gamma., .delta., .epsilon.) is <= 170°.
30. Plasma torch wearing part holder according to claim 28 or 29, characterized in that n = 5 and the sum of two adjacent midpoint angles (.alpha.
and .beta. or .beta. and .gamma. or .gamma. and .delta. or .delta. and .epsilon. or .epsilon. and .alpha.) is not repeated.
31. Plasma torch wearing part holder according to one of the claims 28 to 30, characterized in that the ratio of the surfaces of a projection and an associated depression is in the range 1:1 to 1:4.
32. Plasma torch wearing part holder according to one of the claims 28 to 31, characterized in that the ratio of the surfaces of the npro projections and/or ndep depressions is in the range 1:1 to 1:4.
33. Plasma torch wearing part holder according to one of the claims 28 to 31, characterized in that there are npro identical radial projections and ndep identical radial depressions.
34. Plasma torch wearing part holder according to one of the claims 28 to 33, characterized in that the projections are rectangular noses (531, 532, 533).
35. Plasma torch wearing part holder according to one of the claims 28 to 34, characterized in that on the inner surface (51a; 61a) of cylinder wall (51;
61) in the connection direction on the bearing side upstream of the projections and/or depressions is provided a circumferential, radially outwardly extending chamfer (52, 62).
36. Plasma torch wearing part holder according to one of the claims 28 to 35, characterized in that npro >= 5.
37. Plasma torch wearing part holder according to one of the claims 28 to 35, characterized in that ndep >= 5.
38. Plasma torch wearing part holder according to one of the claims 28 to 37, characterized in that it is an integral part of a plasma torch.
39. Plasma torch wearing part holder according to one of the claims 28 to 37, characterized in that it is detachably connectable to a plasma torch.
CA2634957A 2008-06-12 2008-06-12 Connection between a plasma torch wearing part and a plasma torch wearing part holder, plasma torch wearing part and plasma torch wearing part holder Active CA2634957C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA2634957A CA2634957C (en) 2008-06-12 2008-06-12 Connection between a plasma torch wearing part and a plasma torch wearing part holder, plasma torch wearing part and plasma torch wearing part holder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA2634957A CA2634957C (en) 2008-06-12 2008-06-12 Connection between a plasma torch wearing part and a plasma torch wearing part holder, plasma torch wearing part and plasma torch wearing part holder

Publications (2)

Publication Number Publication Date
CA2634957A1 true CA2634957A1 (en) 2009-08-21
CA2634957C CA2634957C (en) 2011-08-16

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2949938A1 (en) * 2009-09-10 2011-03-11 Air Liquide Welding France Torch for plasma arc cutting a metal piece including e.g. carbon steel and stainless steel, comprises a torch body, a torch head removably attached to the body, and a fixation unit for joining the torch head with the torch body

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2949938A1 (en) * 2009-09-10 2011-03-11 Air Liquide Welding France Torch for plasma arc cutting a metal piece including e.g. carbon steel and stainless steel, comprises a torch body, a torch head removably attached to the body, and a fixation unit for joining the torch head with the torch body

Also Published As

Publication number Publication date
CA2634957C (en) 2011-08-16

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