CN214079719U - Plasma arc gun nozzle structure - Google Patents
Plasma arc gun nozzle structure Download PDFInfo
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- CN214079719U CN214079719U CN202023161290.8U CN202023161290U CN214079719U CN 214079719 U CN214079719 U CN 214079719U CN 202023161290 U CN202023161290 U CN 202023161290U CN 214079719 U CN214079719 U CN 214079719U
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- sealing structure
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- gun
- protective sleeve
- plasma arc
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- 238000007789 sealing Methods 0.000 claims abstract description 99
- 238000009434 installation Methods 0.000 claims abstract description 57
- 230000001681 protective effect Effects 0.000 claims abstract description 55
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 53
- 229910052802 copper Inorganic materials 0.000 claims abstract description 53
- 239000010949 copper Substances 0.000 claims abstract description 53
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims abstract description 47
- 229910052721 tungsten Inorganic materials 0.000 claims abstract description 47
- 239000010937 tungsten Substances 0.000 claims abstract description 47
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 46
- 239000010959 steel Substances 0.000 claims abstract description 46
- 238000005452 bending Methods 0.000 claims abstract description 26
- 238000001816 cooling Methods 0.000 claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000002002 slurry Substances 0.000 claims description 13
- 229910001080 W alloy Inorganic materials 0.000 claims description 6
- 239000007769 metal material Substances 0.000 claims description 6
- 229910001182 Mo alloy Inorganic materials 0.000 claims description 3
- 239000011810 insulating material Substances 0.000 claims description 3
- FAYUQEZUGGXARF-UHFFFAOYSA-N lanthanum tungsten Chemical compound [La].[W] FAYUQEZUGGXARF-UHFFFAOYSA-N 0.000 claims description 3
- WLTSUBTXQJEURO-UHFFFAOYSA-N thorium tungsten Chemical compound [W].[Th] WLTSUBTXQJEURO-UHFFFAOYSA-N 0.000 claims description 3
- 238000012856 packing Methods 0.000 claims 1
- 238000009776 industrial production Methods 0.000 abstract description 4
- 239000000498 cooling water Substances 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 238000004544 sputter deposition Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003466 anti-cipated effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
Images
Classifications
-
- 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
- B23K10/00—Welding or cutting by means of a plasma
-
- 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
- B23K10/00—Welding or cutting by means of a plasma
- B23K10/02—Plasma welding
-
- 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
- B23K9/16—Arc welding or cutting making use of shielding gas
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Plasma Technology (AREA)
Abstract
A plasma arc gun nozzle structure comprises a tungsten steel nozzle inner sleeve and a heat conduction copper sealing structure, wherein the tungsten steel nozzle inner sleeve comprises an installation limiting boss, an upper flow guide oblique conical surface, an inner flow guide cylindrical surface and a lower flow guide oblique conical surface, a narrow part is formed between the upper flow guide oblique conical surface and a gun tip, and the heat conduction copper sealing structure comprises an installation thread, an installation limiting platform I, a sealing structure, an installation limiting platform II, an installation inner hole, an inner heat conduction surface bending structure, an inner water cooling cavity, a protective sleeve fixing structure and a flow guide conical surface. The utility model can accurately position through screwing the mounting thread and mounting the outer limit table, thereby ensuring the good repeatability of the industrial production; the cooling of the sealing structure of the upper section is ensured not to be damaged; the high temperature of the gun tip is prevented from being conducted to the upper section of the heat-conducting copper seal, and the occurrence of internal short circuit arc is also prevented; the arranged inner water cooling cavity forms a stable cooling structure; the vent hole that sets up on the gun case inner tube can prevent effectively that seal structure and gun case inner tube from sealing the department and forming the vapor chamber down, causing local high temperature.
Description
Technical Field
The utility model belongs to the technical field of superfine metal powder material equipment, concretely relates to plasma arc rifle nozzle structure.
Background
Plasma gun is including transferring plasma arc rifle, non-plasma arc rifle and mixing plasma arc rifle for during the cutting, because of the operational environment temperature is not high, and the heat dissipation is convenient moreover, does not need long-time continuous operation, and power is more within 60 KW. A plasma arc rifle that is used for continuous long-time and high-power during operation in the ultra-high temperature evaporimeter, needs the setting include negative pole rifle core, negative pole nozzle, the insulating cover between rifle core and the nozzle, the rifle casing that is linked together with the negative pole mouth, the rifle casing sets up water-cooling intermediate layer and advances back cooling water pipe, and the rifle core afterbody sets up into return water condenser tube and intake pipe, and the rifle core head sets up removable rifle point structure, sets up heat preservation protective sheath outward of rifle casing. In the industrial production process, need nozzle structure and mounting structure can be accurate and repeatedly operable, long-time powerful operational environment can cause the temperature of rifle casing and nozzle body to excessively influence life and stability in use, and leads to the heat in the high temperature evaporator to be carried the loss by cooling system.
Among the prior art, the disclosed plasma arc rifle structure, conducting structure and limit structure between each position set up comparatively simply, can't accomplish the electrically conductive use of long-time high-power, and the ultra-high temperature evaporator has a higher demand to the internally used heating source, frequently changes or the gas leakage that leaks can all seriously influence the result of use, causes the damage of high temperature evaporator even.
SUMMERY OF THE UTILITY MODEL
The problem that provides to the background art, the utility model discloses research and design a be used for continuous long term work high-power ion arc rifle nozzle structure in the ultra-high temperature evaporator, operational environment is in the ultra-high temperature evaporator, and ambient temperature is more than 2000 degrees centigrade, can work for a long time more than 300 hours in succession, provides stable efficient heating plasma electric arc for the high temperature in the evaporator.
The technical solution of the utility model is as follows:
a plasma arc gun nozzle structure characterized in that: the tungsten steel nozzle inner sleeve comprises an installation limiting boss, an upper flow guide oblique conical surface, an inner flow guide cylindrical surface and a lower flow guide oblique conical surface, a narrow part is formed between the upper flow guide oblique conical surface and a gun tip, the heat conduction copper sealing structure comprises an installation thread connected with a gun shell, a first installation limiting platform, a sealing structure, a second installation limiting platform, an installation inner hole, an inner heat conduction surface bending structure, an inner water cooling cavity arranged in the heat conduction copper sealing structure, a protective sleeve fixing structure and a flow guide conical surface arranged at the top end of the heat conduction copper sealing structure, the installation limiting boss of the tungsten steel nozzle inner sleeve is arranged at the outer side of the tungsten steel nozzle inner sleeve and is positioned at a second installation limiting platform at the upper side of the installation inner hole, the protective sleeve fixing structure comprises a protective sleeve installation boss arranged at the outer side of the heat conduction copper sealing structure and is matched with the protective sleeve installation boss to form a clamping platform, the sealing structure comprises an outer sealing structure, a top sealing structure and an inner sealing structure, the outer sealing structure is arranged between the heat conduction copper sealing structure and the inner side face of the gun shell outer tube, the top sealing structure is arranged between the heat conduction copper sealing structure and a gun shell inner tube inner sealing platform, the inner sealing structure is arranged between the heat conduction copper sealing structure and the inner side of the gun shell inner tube, and the inner heat conduction surface bending structure comprises a lower section, a middle section and an upper section, wherein the lower section is in contact with the tungsten steel nozzle inner sleeve, and the upper section is outside the gun shell inner.
Preferably, the tungsten steel nozzle inner sleeve is made of a high-temperature-resistant conductive metal material, and the high-temperature-resistant conductive metal material comprises thorium tungsten alloy, lanthanum tungsten alloy and molybdenum alloy.
Preferably, the protective sheath fixed knot constructs including setting up protective sheath installation slip fixed slot and protective sheath installation slip in the heat conduction copper seal structure outside, and after outer protective sheath was installed in the plasma arc rifle outside, protective sheath installation slip was used for the shutoff in clearance between the two, and protective sheath installation slip fixed recess is used for carrying out external fixed to protective sheath installation slip.
Preferably, the thickness of the tungsten steel nozzle inner sleeve is 4-8mm, the height is 10-18mm, the inner aperture is 5-10mm, and the outer side surface of the tungsten steel nozzle is tightly matched with the inner side surface of the heat conduction copper installation inner hole.
Preferably, the included angle between the upper flow guide oblique conical surface and the central shaft of the inner sleeve of the tungsten steel nozzle is 15-45 degrees, a conical tube type gap with a large top and a small bottom is formed between the upper flow guide oblique conical surface and the tungsten steel of the gun tip, the minimum position of the gap is controlled to be 1-4 mm, the inner flow guide cylindrical surface is a flow guide surface, and the included angle between the inner flow guide cylindrical surface and the central shaft of the inner sleeve of the tungsten steel nozzle is-10 degrees.
Preferably, the lower flow guiding oblique conical surface of the inner sleeve of the tungsten steel nozzle and the flow guiding conical surface at the top end of the heat conducting copper sealing structure are both concave conical surfaces, and the included angles between the lower flow guiding oblique conical surface, the flow guiding conical surface and the central shaft are all 80-90 degrees.
Preferably, the outer sealing structure, the top sealing structure and the inner sealing structure are provided with the good type circle filled sealer and the O-shaped circle filled sealer.
Preferably, the outer side of the lower section of the inner heat conducting surface bending structure is of an inwards concave structure, a chamfer is arranged on the lower side of the inwards concave structure, the middle section of the inner heat conducting surface bending structure is folded, the inner side of the upper section of the inner heat conducting surface bending structure is outwards concave, and an insulating sleeve is arranged between the upper section of the inner heat conducting surface bending structure and the gun tip.
Preferably, a plurality of exhaust holes are formed in the gun shell inner tube and located on the lower side of the inner sealing structure.
Preferably, a high-temperature-resistant heat-insulating material is filled between the outer protective sleeve and the plasma arc gun for heat-insulating protection.
The utility model has the advantages that: the mounting thread and the mounting outer limit platform arranged in the utility model can be screwed through the mounting thread and can be accurately positioned through the mounting outer limit platform, thereby ensuring the good repeatability of the industrial production; the outer side of the lower section of the heat conducting surface bending structure is of an inwards concave structure, cooling water is made to be close to tungsten steel as much as possible, and a chamfer is arranged on the lower side of the inwards concave structure, so that the problem that the connection strength between the inner heat conducting surface and the top end of the heat conducting copper is not strong due to a right-angle structure is avoided; the middle section of the inner heat conducting surface bending structure is folded, so that the heat of the lower section can be conducted to the upper section as little as possible, and the cooling of the sealing structure of the upper section is ensured not to be damaged; the inner side of the upper section of the inner heat-conducting surface bending structure is concave, so that the design requirement that the inner gun tip is far away from the inner gun tip as far as possible is formed, the high temperature of the gun tip is prevented from being conducted to the heat-conducting copper sealing upper section, and meanwhile, the occurrence of an inner short circuit arc is also prevented; the arranged inner water cooling cavity is used for gathering the cooling circulating water led in the gun shell and returned to form a stable cooling structure; the protective sleeve mounting boss is used for jacking the outer protective sleeve for use, or the protective sleeve mounting slurry fixing groove is arranged on the outer side of the heat-conducting copper sealing structure; the plurality of exhaust holes arranged at the lower side of the inner sealing structure on the gun shell inner tube can effectively prevent the sealing structure and the gun shell inner tube from forming a steam cavity below the sealing part to cause local high temperature.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is the utility model discloses a structural schematic diagram when protective sheath installation slip fixed slot and protective sheath installation slip are as protective sheath fixed knot structure.
Wherein: 1. the heat-conducting copper sealing structure comprises a heat-conducting copper sealing structure, 2, a tungsten steel nozzle inner sleeve, 3, a gun shell outer tube, 4, a gun shell inner tube, 5, an outer protective sleeve, 6, a plasma gas main arc, 7, a sub arc or a sputtering arc, 8, an outer limiting platform I, 9, protective sleeve mounting powder slurry, 10, a protective sleeve mounting powder slurry fixing groove, 11, a gun tip, 12, an exhaust hole, 13, a top sealing structure, 14, mounting threads, 15, an outer sealing structure, 16, an inner sealing structure, 17, a protective sleeve mounting boss, 18, an inner water cooling cavity, 19, a chamfer, 20, a limiting mounting platform II, 21, an upper flow-guiding oblique conical surface, 22, an inner flow-guiding cylindrical surface, 23, a lower flow-guiding oblique conical surface, 24, a narrow part, 25, a clamping platform, 26, an inner heat-conducting surface bending structure lower section, 27, an inner heat-conducting surface bending structure upper section, 28, an inner heat-conducting surface bending structure middle section, 29 and a mounting limiting boss.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
As shown in fig. 1 and 2, a plasma arc gun nozzle structure comprises a tungsten steel nozzle inner sleeve 2 and a heat-conducting copper sealing structure 1, wherein the tungsten steel nozzle inner sleeve 2 comprises an installation limiting boss 29, an upper diversion oblique conical surface 21, an inner diversion cylindrical surface 22 and a lower diversion oblique conical surface 23, a narrow part 24 is formed between the upper diversion oblique conical surface 21 and a gun tip, the heat-conducting copper sealing structure 1 comprises an installation thread 14 connected with a gun shell, an installation outer limiting platform I8, a sealing structure, a limiting installation platform II 20, an installation inner hole, an inner heat-conducting surface bending structure, an inner water cooling cavity 18 arranged in the heat-conducting copper sealing structure, a protective sleeve fixing structure and a diversion conical surface arranged at the top end of the heat-conducting copper sealing structure, accurate positioning is carried out through screwing of the installation thread 14 and installation of the outer limiting platform I8, good repeatability of industrial production is ensured, the installation limiting boss 29 is arranged at the outer side of the tungsten steel nozzle inner sleeve 2 and is positioned at the upper side of the installation inner hole, the protective sleeve fixing structure comprises a protective sleeve mounting boss 17 arranged on the outer side of the heat conduction copper sealing structure 1 and a clamping table 25 matched with the protective sleeve mounting boss 17, the sealing structure comprises an outer sealing structure 15, a top sealing structure 13 and an inner sealing structure 16, the outer sealing structure 15 is arranged between the inner side surfaces of the heat conduction copper sealing structure 1 and the gun shell outer tube 3, the top sealing structure 13 is arranged between the heat conduction copper sealing structure 1 and the gun shell inner tube 4, the inner sealing structure 16 is arranged between the inner sides of the heat conduction copper sealing structure 1 and the gun shell inner tube 4, and the inner heat conduction surface bending structure comprises a lower section 26, a middle section 28 and an upper section 26, wherein the lower section is in contact with the tungsten steel nozzle inner sleeve 2, and the upper section 26 is sealed outside the gun shell inner tube 4.
The tungsten steel nozzle inner sleeve 2 is made of high-temperature-resistant conductive metal materials, and the high-temperature-resistant conductive metal materials comprise thorium tungsten alloy, lanthanum tungsten alloy and molybdenum alloy.
The protective sleeve fixing structure comprises a protective sleeve mounting slurry fixing groove 10 and a protective sleeve mounting slurry 9 which are arranged on the outer side of the heat conduction copper sealing structure 1.
The tungsten steel nozzle inner sleeve 2 is 4-8mm thick, 10-18mm high and 5-10mm in inner bore diameter, and is arranged on the outer side of the tungsten steel nozzle inner sleeve 2, and a mounting limiting boss 29 and a second limiting mounting table 20 of heat conducting copper are arranged on the upper side of the mounting inner bore for precise positioning. In order to fully conduct the heat on the tungsten steel to the heat conducting copper sealing structure 1, the outer side surface of the tungsten steel nozzle is tightly matched with the inner side surface of the heat conducting copper installation inner hole, and the inner sleeve 2 of the tungsten steel nozzle is prevented from cracking due to the fact that the copper and the tungsten have different thermal expansion coefficients under the action of cold and hot external forces and interference fit cannot be used.
The included angle between the upper diversion oblique conical surface 21 and the central shaft of the tungsten steel nozzle inner sleeve 2 is 15-45 degrees, a conical pipe type gap with the large top and the small bottom is formed between the upper diversion oblique conical surface 21 and the gun tip tungsten steel 11, the minimum position of the gap is controlled to be 1-4 mm, the narrow part 24 at the minimum position of the gap is designed, plasma gas is gathered firstly and then rapidly enters an inner hole of the inner diversion cylindrical surface 22, a high-pressure cavity is formed above the narrow part 24, so that the situation that the ejected plasma gas generates instant high pressure due to external abnormity is prevented, the plasma gas enters the high-pressure cavity through the narrow part 24 in a reverse flow mode to damage the inner structure of the plasma arc gun, the inner diversion cylindrical surface 22 is a diversion surface, the included angle between the inner diversion cylindrical surface 22 and the central shaft of the tungsten steel nozzle inner sleeve 2 is-10 degrees, and the plasma gas is guided to be ejected out of the tungsten steel nozzle.
The lower diversion inclined conical surface 23 of the tungsten steel nozzle inner sleeve 2 and the diversion conical surface at the top end of the heat conduction copper sealing structure 1 are both concave conical surfaces, the included angles between the lower diversion inclined conical surface 23 and the diversion conical surface and the central shaft are both 80-90 degrees, a contact surface between the tungsten steel nozzle inner sleeve 2 and the heat conduction copper sealing structure 1 is formed as large as possible, the tungsten steel is contacted with a plasma arc as small as possible, ejected plasma gas is guided to be ejected downwards due to the design of the concave surface at the top end of the heat conduction copper sealing structure 1, a sub arc or sputtering arc 7 generated at the periphery of a main arc 6 of the plasma gas can be conducted to the concave surface of copper in a short path, the tungsten steel with poor heat conduction and electric conduction is avoided, and the occurrence of tungsten steel crack at the nozzle position caused by the hit of the sub arc or the sputtering arc can be greatly reduced; meanwhile, the concave hidden design reduces the transmission of heat and radiation from the ejection reflection arc of the plasma arc gun and the interior of the high-temperature evaporator to the top end of the nozzle of the plasma arc gun.
The outer sealing structure 15, the top sealing structure 13 and the inner sealing structure 16 are provided with good type clamping grooves and O-shaped ring filled seals. The outer sealing structure 15 and the top sealing structure 13 are double sealing structures arranged between the heat conduction copper sealing structure 1 and the gun shell outer tube 3, and because the outer side of the heat conduction copper of the nozzle of the gun shell is a high-temperature environment of a high-temperature evaporator, the plasma arc gun needs to be designed more fully to ensure the stable work of the plasma arc gun under the long-time high-power working condition, and if the used environment temperature is below 1000 ℃, the plasma arc gun can be designed into any single sealing structure in the double sealing. The inner sealing structure 16 is arranged between the heat-conducting copper sealing structure 1 and the gun shell inner tube 4, and in order to ensure long-time high-power operation of the plasma arc gun, the inner sealing structure 16 is designed at the upper section 27 of the inner heat-conducting surface bending structure.
The outer side of the lower section 26 of the inner heat conducting surface bending structure is of an inwards concave structure, cooling water is close to tungsten steel as much as possible, a chamfer 19 is arranged on the lower side of the inwards concave structure, and the situation that the connecting strength of the inner heat conducting surface and the top end of the heat conducting copper sealing structure 1 is not strong due to the right-angle structure is prevented. The middle section 28 of the inner heat conducting surface bending structure is folded, so that the heat of the lower section 26 can be conducted to the upper section 27 as little as possible, and the cooling of the sealing structure of the upper section 27 is guaranteed not to be damaged. The inner side of the upper section 27 of the inner heat conducting surface bending structure is concave outwards, so that the design requirement that the upper section is far away from the inner gun point 11 as far as possible is met, the high-temperature conduction of the gun point 11 to the upper section of the heat conducting copper sealing structure 1 is prevented, the occurrence of an internal short circuit arc is also prevented, and an insulating sleeve is arranged between the upper section 27 of the inner heat conducting surface bending structure and the gun point 11.
The internal water cooling cavity 18 in the heat conducting copper sealing structure 1 is used for gathering the cooling circulating water led in and led out from the gun shell to form a stable cooling structure, and a plurality of exhaust holes 12 are formed in the inner tube 4 of the gun shell and positioned on the lower side of the internal sealing structure 16 to prevent the heat conducting copper from forming a water vapor cavity below the sealing part of the inner tube 4 of the gun shell to cause local high temperature.
The protective sleeve mounting boss 17 is used for jacking the outer protective sleeve 5 for use; the protective sleeve installation slip fixing groove 10 is formed in the outer side of the heat conduction copper sealing structure 1, after the outer protective sleeve 5 is installed on the outer side of the plasma arc gun, the protective sleeve installation slip 9 is used for plugging a gap between the protective sleeve installation slip and the plasma arc gun, and the protective sleeve installation slip fixing groove 10 is used for externally hanging and fixing the protective sleeve installation slip 9.
And a high-temperature-resistant heat-insulating material is filled between the outer protective sleeve 5 and the plasma arc gun for heat-insulating protection.
To sum up, the utility model discloses reach anticipated effect.
It should be noted that the foregoing specific embodiments are merely examples for clearly illustrating the present invention, and are not intended to limit the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. This need not be exhaustive. And obvious variations or modifications can be made without departing from the scope of the invention.
Claims (10)
1. A plasma arc gun nozzle structure characterized in that: the tungsten steel nozzle inner sleeve comprises an installation limiting boss, an upper flow guide oblique conical surface, an inner flow guide cylindrical surface and a lower flow guide oblique conical surface, a narrow part is formed between the upper flow guide oblique conical surface and a gun tip, the heat conduction copper sealing structure comprises an installation thread connected with a gun shell, a first installation limiting platform, a sealing structure, a second installation limiting platform, an installation inner hole, an inner heat conduction surface bending structure, an inner water cooling cavity arranged in the heat conduction copper sealing structure, a protective sleeve fixing structure and a flow guide conical surface arranged at the top end of the heat conduction copper sealing structure, the installation limiting boss of the tungsten steel nozzle inner sleeve is arranged at the outer side of the tungsten steel nozzle inner sleeve and is positioned at a second installation limiting platform at the upper side of the installation inner hole, the protective sleeve fixing structure comprises a protective sleeve installation boss arranged at the outer side of the heat conduction copper sealing structure and is matched with the protective sleeve installation boss to form a clamping platform, the sealing structure comprises an outer sealing structure, a top sealing structure and an inner sealing structure, the outer sealing structure is arranged between the heat conduction copper sealing structure and the inner side face of the gun shell outer tube, the top sealing structure is arranged between the heat conduction copper sealing structure and a gun shell inner tube inner sealing platform, the inner sealing structure is arranged between the heat conduction copper sealing structure and the inner side of the gun shell inner tube, and the inner heat conduction surface bending structure comprises a lower section, a middle section and an upper section, wherein the lower section is in contact with the tungsten steel nozzle inner sleeve, and the upper section is outside the gun shell inner tube seal.
2. The plasma arc gun nozzle arrangement according to claim 1, wherein: the tungsten steel nozzle inner sleeve is made of high-temperature-resistant conductive metal materials, and the high-temperature-resistant conductive metal materials comprise thorium tungsten alloy, lanthanum tungsten alloy and molybdenum alloy.
3. The plasma arc gun nozzle arrangement according to claim 1, wherein: the protective sleeve fixing structure comprises a protective sleeve installation slurry fixing groove and a protective sleeve installation slurry, the protective sleeve installation slurry fixing groove and the protective sleeve installation slurry are arranged on the outer side of the heat conduction copper sealing structure, the protective sleeve installation slurry is used for plugging a gap between the protective sleeve installation slurry and the plasma arc gun after the outer protective sleeve is installed on the outer side of the plasma arc gun, and the protective sleeve installation slurry fixing groove is used for externally hanging and fixing the protective sleeve installation slurry.
4. The plasma arc gun nozzle arrangement according to claim 1, wherein: the thickness of the tungsten steel nozzle inner sleeve is 4-8mm, the height is 10-18mm, the inner aperture is 5-10mm, and the outer side surface of the tungsten steel nozzle is tightly matched with the inner side surface of the heat conduction copper installation inner hole.
5. The plasma arc gun nozzle arrangement according to claim 1, wherein: the included angle between the upper flow guide oblique conical surface and the central shaft of the inner sleeve of the tungsten steel nozzle is 15-45 degrees, a large-top and small-bottom conical tube type gap is formed between the upper flow guide oblique conical surface and the tungsten steel of the gun tip, the minimum position of the gap is controlled to be 1-4 mm, the inner flow guide cylindrical surface is a flow guide surface, and the included angle between the inner flow guide cylindrical surface and the central shaft of the inner sleeve of the tungsten steel nozzle is-10 degrees.
6. The plasma arc gun nozzle arrangement according to claim 1, wherein: the lower flow guiding oblique conical surface of the tungsten steel nozzle inner sleeve and the flow guiding conical surface at the top end of the heat conducting copper sealing structure are both concave conical surfaces, and the included angles between the lower flow guiding oblique conical surface, the flow guiding conical surface and the central shaft are all 80-90 degrees.
7. The plasma arc gun nozzle arrangement according to claim 1, wherein: the outer sealing structure, the top sealing structure and the inner sealing structure are all provided with fine type circle groove and O type circle packing seals.
8. The plasma arc gun nozzle arrangement according to claim 1, wherein: the outer side of the lower section of the inner heat conducting surface bending structure is of an inwards concave structure, a chamfer is arranged on the lower side of the inwards concave structure, the middle section of the inner heat conducting surface bending structure is folded, the inner side of the upper section of the inner heat conducting surface bending structure is outwards concave, and an insulating sleeve is arranged between the upper section of the inner heat conducting surface bending structure and the gun tip.
9. The plasma arc gun nozzle arrangement according to claim 1, wherein: and a plurality of exhaust holes are formed in the gun shell inner tube and positioned on the lower side of the inner sealing structure.
10. The plasma arc gun nozzle arrangement according to claim 3, wherein: and a high-temperature-resistant heat-insulating material is filled between the outer protective sleeve and the plasma arc gun for heat-insulating protection.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023161290.8U CN214079719U (en) | 2020-12-24 | 2020-12-24 | Plasma arc gun nozzle structure |
| PCT/CN2021/120670 WO2022134704A1 (en) | 2020-12-24 | 2021-09-26 | Nozzle structure of plasma arc gun |
| TW110215005U TWM625644U (en) | 2020-12-24 | 2021-12-16 | Nozzle structure of plasma arc gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023161290.8U CN214079719U (en) | 2020-12-24 | 2020-12-24 | Plasma arc gun nozzle structure |
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| Publication Number | Publication Date |
|---|---|
| CN214079719U true CN214079719U (en) | 2021-08-31 |
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|---|---|---|---|
| CN202023161290.8U Active CN214079719U (en) | 2020-12-24 | 2020-12-24 | Plasma arc gun nozzle structure |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN214079719U (en) |
| TW (1) | TWM625644U (en) |
| WO (1) | WO2022134704A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022134756A1 (en) * | 2020-12-24 | 2022-06-30 | 江苏博迁新材料股份有限公司 | Engagement support structure for nozzle and protective sleeve |
| WO2022134704A1 (en) * | 2020-12-24 | 2022-06-30 | 江苏博迁新材料股份有限公司 | Nozzle structure of plasma arc gun |
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| US5304770A (en) * | 1993-05-14 | 1994-04-19 | Kabushiki Kaisha Komatsu Seisakusho | Nozzle structure for plasma torch |
| CN201543958U (en) * | 2009-11-27 | 2010-08-11 | 徐常在 | Plasma arc cutting torch |
| EP3443820B1 (en) * | 2016-04-11 | 2022-03-02 | Hypertherm, Inc. | Plasma gas swirl ring and method for controlling a plasma gas flow through the swirl ring |
| CN108145294B (en) * | 2016-12-02 | 2023-12-08 | 唐山开元焊接自动化技术研究所有限公司 | High-power plasma welding gun |
| CN206898567U (en) * | 2017-05-17 | 2018-01-19 | 周楠 | A kind of new type nozzle and apply its plasma cutting-torch |
| CN214079719U (en) * | 2020-12-24 | 2021-08-31 | 江苏博迁新材料股份有限公司 | Plasma arc gun nozzle structure |
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- 2020-12-24 CN CN202023161290.8U patent/CN214079719U/en active Active
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2021
- 2021-09-26 WO PCT/CN2021/120670 patent/WO2022134704A1/en active Application Filing
- 2021-12-16 TW TW110215005U patent/TWM625644U/en unknown
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022134756A1 (en) * | 2020-12-24 | 2022-06-30 | 江苏博迁新材料股份有限公司 | Engagement support structure for nozzle and protective sleeve |
| WO2022134704A1 (en) * | 2020-12-24 | 2022-06-30 | 江苏博迁新材料股份有限公司 | Nozzle structure of plasma arc gun |
Also Published As
| Publication number | Publication date |
|---|---|
| TWM625644U (en) | 2022-04-11 |
| WO2022134704A1 (en) | 2022-06-30 |
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