CN107969059A - Air-cooled non transferred arc plasma torch - Google Patents

Air-cooled non transferred arc plasma torch Download PDF

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Publication number
CN107969059A
CN107969059A CN201711277338.1A CN201711277338A CN107969059A CN 107969059 A CN107969059 A CN 107969059A CN 201711277338 A CN201711277338 A CN 201711277338A CN 107969059 A CN107969059 A CN 107969059A
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CN
China
Prior art keywords
cathode
air
inlet pipe
air inlet
package
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Pending
Application number
CN201711277338.1A
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Chinese (zh)
Inventor
王晶晨
王志军
王东方
杨玉地
石为华
吴道洪
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Shenwu Technology Group Corp Co Ltd
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Shenwu Technology Group Corp Co Ltd
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Priority to CN201711277338.1A priority Critical patent/CN107969059A/en
Publication of CN107969059A publication Critical patent/CN107969059A/en
Pending legal-status Critical Current

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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
    • H05H1/28—Cooling arrangements
    • 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

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Plasma Technology (AREA)

Abstract

The invention discloses a kind of air-cooled non transferred arc plasma torch, air-cooled non transferred arc plasma torch includes package, air inlet pipe, insulator, anode bodies, cathode package and has a first end and a second end, and air inlet pipe is inserted into from the second end of package.At least a portion of insulator is located between the second end of package and air inlet pipe.Anode bodies block the first end in package, and anode bodies are equipped with spout, and spout is connected with air inlet pipe.Cathode is located in package, and one end that one end and the air inlet pipe of cathode stretch to package is connected, and the other end of cathode is equipped with the air flue of connection air inlet pipe towards notch setting in cathode.Air-cooled non transferred arc plasma torch according to embodiments of the present invention, cools down gun body inner body using air cooling way, simplifies gun configuration, improve the effective rate of utilization of electric energy, improve work efficiency, extend the service life of electrode body.

Description

Air-cooled non transferred arc plasma torch
Technical field
The present invention relates to technical field of plasma, more particularly to a kind of air-cooled non transferred arc plasma torch.
Background technology
Plasma state is the 4th state of material, and almost the material (not including still unacknowledged dark matter) of 99 ﹪ is all in universe In plasma state.Plasma its temperature distribution range then 1,000,000,000 K superelevation from the low temperature of 10K to nuclear fusion plasma Temperature, and plasma possesses a series of peculiar properties, makes plasma in nano material production, new material synthesis, hot-working system Make, smelt, drilling, the processing of coal chemical industry, junk, material surface processing, electronics, new energy, military affairs, the field such as aerospace Obtain extensive use.In recent decades, the development of plasma generator and the exploitation of plasma diagnostics technology achieve huge Big progress, and the application no longer in terms of limitation and space flight and aviation of the emphasis of plasma development and exploitation, but more The application of the industrial departments such as ground steering mechanical, chemical industry, metallurgy, environmental protection, particularly in terms of material processing is with new material development Using.Plasma system has two kinds of transferred arc and untransferable arc, and the positive and negative anodes of non-transferred arc plasma are in a plasma Inside rifle, compared with transferred-arc plasma, untransferable arc plasma apparatus structure is increasingly complex, and price is more expensive, certain Influence is the development of non-transferred-arc plasma technology in degree, and there is an urgent need for a kind of cheap, simple in structure untransferable arc at present Plasma system is to promote the extensive use of plasma technology.
Existing non transferred arc plasma torch is all water-cooling structure, and water-cooling structure is imitated for the heating system of some short-term operations Fruit is preferable, but heating system such as garbage disposal, flying dust processing and other effects to some longtime runnings is poor, the reason is that cooling water The heat of half is taken away so that the utilization rate of electric energy only has 50% or so, increases power consumption and cost, is badly in need of one at present Kind can improve utilization rate of electrical, reduce the non transferred arc plasma torch of operating cost.
Prior art discloses a kind of " handheld air-cooled plasma torch ", the scheme of the technology is that contact tube front end has conduction There are graphite electrode seat in disk, conductive plate front end, and there are hollow graphite electrode, the front end of contact tube and DC power supply in graphite motor cabinet front end One extremely be connected, metalwork is connected with the DC power supply other end.The technology is transferred arc plasma torch, and gun body is only cathode, must Must there must be an outer anode, untransferable arc can not be formed, the operating mode of the similar welding such as cladding or cutting can only be carried out, can not be to it He is heated operating mode.
Prior art discloses a kind of " small-sized non-cooled plasma jet igniter ", the device is mainly by anode, the moon Pole, cyclone, ceramics, housing, spring, supply air line (cathode connection pipe) composition.The invention is only applicable to small-sized operating mode, gun body Internal scaling loss is more severe, is not suitable for long-term work；And the apparatus structure is complex, it is unfavorable for wearing detail replacement, It is difficult to use in large-scale heating equipment.
Prior art discloses a kind of " high-power air-cooled plasma generator ", the device mainly by cathode, anode bodies, Magnetic coil forms, and cathode shape is gyroscope-like, and the structure of anode bodies uses Laval nozzle structure, and cathode and anode bodies are in Coaxial-type arranges that magnetic coil is arranged in cathode rear portion and is serially connected in cathode circuit loop, between cathode and anode bodies Electric arc is formed, electric arc is rotated at a high speed under the action of magnetic coil produces Lorentz force and blown out by swirling eddy along anode bodies passage Form plasma jet, the cooling of cathode and anode bodies use air-cooled mode, by high powered plasma generator cathode with The anode bodies type of cooling is changed to air cooling by water cooling, overcomes complicated, the poor reliability of existing water cooled electrode plasma The problem of.The device cools down plasma arc using magnetic coil, improves the cost of equipment, and magnetic to a certain extent Compression is also energy consumption, although reducing loss of the cooling water to energy, the energy consumption of its magnetic coil also reduces to a certain extent The effective rate of utilization of electric energy, the device wearing detail is complicated in addition, be not easy to replace, and improves equipment fortune to a certain extent Capable cost, is not suitable for long-play.
The content of the invention
It is contemplated that at least solve one of technical problem existing in the prior art.For this reason, the present invention proposes a kind of wind Cold type non transferred arc plasma torch, the air-cooled non transferred arc plasma torch is simple in structure, and the effective rate of utilization of electric energy is higher.
Air-cooled non transferred arc plasma torch according to embodiments of the present invention, including：Package, the package have first end And second end；Air inlet pipe, the air inlet pipe are inserted into from the second end of the package；Insulator, at least one of the insulator Set up separately between the second end and the air inlet pipe of the package；Anode bodies, the anode bodies closure is the first of the package End, the anode bodies are equipped with spout, and the spout is connected with the air inlet pipe；Cathode, the cathode are located at the shell In pipe, one end that one end of the cathode stretches to the package with the air inlet pipe is connected, the other end of the cathode Towards the notch setting, the air flue for connecting the air inlet pipe is equipped with the cathode；Wherein, the air inlet pipe, described the moon Spaced apart from inner walls of the polar body with the package, limits between the inner wall of the air inlet pipe, the cathode and the package The air-cooled passage being connected；The cathode is spaced apart with the anode bodies to limit the protection communicated with the air-cooled passage Passage；The tube wall of the air inlet pipe is equipped with the cooling hole for connecting the air-cooled passage；In addition, the package, the air inlet pipe, The anode bodies and the cathode are conductor, and the package is adapted to cathode electricity, and the air inlet pipe is adapted to anode Electricity.
Air-cooled non transferred arc plasma torch according to embodiments of the present invention, using air cooling way to gun body inner body into Row cooling, simplifies gun configuration, improves the effective rate of utilization of electric energy, improve work efficiency, extend electrode body Service life.
In certain embodiments, the air-cooled non transferred arc plasma torch, further includes：Collet, the collet set It is located between the air inlet pipe and the insulator, a part for the collet is stretched out out of described insulator.
In certain embodiments, the end face of the direction of the anode bodies cathode is equipped with groove, the cathode One end extend into the groove.
Specifically, the inner surface of the groove is formed as hemisphere face, and the end face of the cathode is formed as half be adapted Sphere.
In certain embodiments, the cooling hole is formed as in the pipe by the air inlet pipe to the side outside pipe upwardly toward institute State the inclined hole of spout extension.
In certain embodiments, from the air inlet pipe to the anode bodies, between two components being often connected, at least one Place is using threaded connection.
In certain embodiments, the air inlet pipe and the package are respectively heat-resisting steel part.
In certain embodiments, the cathode and the anode bodies are respectively high purity graphite part.
In certain embodiments, the insulator is Parts Made of Composite Glass.
In certain embodiments, the cathode is formed as cylinder, axial direction of the air flue in the cathode The upper perforation cathode, one end of the air flue are formed as macropore with air inlet pipe described in overcoat, the cathode and the shell Pipe is coaxially disposed.
The additional aspect and advantage of the present invention will be set forth in part in the description, and will partly become from the following description Obtain substantially, or recognized by the practice of the present invention.
Brief description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become in the description from combination accompanying drawings below to embodiment Substantially and it is readily appreciated that, wherein：
Fig. 1 is the overall structure diagram of the air-cooled non transferred arc plasma torch of the embodiment of the present invention.
Reference numeral：
Air-cooled non transferred arc plasma torch 100,
Package 1, first end S1, second end S2,
Air inlet pipe 2, cooling hole 21,
Insulator 3,
Anode bodies 4, spout 41,
Cathode 5, air flue 51,
Collet 6, air-cooled passage 7, protection passage 8, non-transferred plasma arc 9.
Embodiment
The embodiment of the present invention is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end Same or similar label represents same or similar element or has the function of same or like element.Below with reference to attached The embodiment of figure description is exemplary, and is only used for explaining the present invention, and is not considered as limiting the invention.
Below with reference to Fig. 1 descriptions air-cooled non transferred arc plasma torch 100 according to embodiments of the present invention.
As shown in Figure 1, air-cooled non transferred arc plasma torch 100 according to embodiments of the present invention includes package 1, air inlet pipe 2nd, insulator 3, anode bodies 4, cathode 5.
Package 1 has first end S1 and second end S2, and air inlet pipe 2 is inserted into from the second end S2 of package 1, and insulator 3 is extremely A few part is located between the second end S2 of package 1 and air inlet pipe 2.Anode bodies 4 block the first end S1 in package 1, anode bodies 4 Spout 41 is equipped with, spout 41 is connected with air inlet pipe 2.Cathode 5 is located in package 1, and one end and the air inlet pipe 2 of cathode 5 are stretched Enter to one end of package 1 and be connected, the other end of cathode 5 is set towards spout 41, and connection air inlet pipe 2 is equipped with cathode 5 Air flue 51.
Wherein, the spaced apart from inner walls of air inlet pipe 2, cathode 5 with package 1, air inlet pipe 2, cathode 5 are interior with package 1 The air-cooled passage 7 being connected is limited between wall.Cathode 5 is spaced apart what is communicated to limit with air-cooled passage 7 with anode bodies 4 Protect passage 8.The tube wall of air inlet pipe 2 is equipped with the cooling hole 21 for connecting air-cooled passage 7, in addition, package 1, air inlet pipe 2, anode Body 4 and cathode 5 are conductor, and package 1 is adapted to cathode electricity, and air inlet pipe 2 is adapted to negative electricity.
It is understood that in 100 work process of air-cooled non transferred arc plasma torch of the embodiment of the present invention, compression Air enters inside gun body from air inlet pipe 2, and a part of compressed air enters from the cooling hole 21 being located on the tube wall of air inlet pipe 2 Parts inside gun body are played cooling effect by air-cooled passage 7, since air-cooled passage 7 is with protecting passage 8 to connect, this Partial shrinkage air can also play the role of compression plasma arc protection anode bodies 4 and cathode 5.And another part air into Enter the air flue 51 in cathode 5, plasma arc is produced as plasma gas.
The structure of the air-cooled non transferred arc plasma torch 100 of the embodiment of the present invention is very it can be seen from above-mentioned narration Simply, plasma (orifice) gas generation plasma arc can have both been served as into the compressed air of gun body, it is cold by that can be played to gun body inside But act on, can also play a protective role to cathode 5 and anode bodies 4.
Further, since the air-cooled non transferred arc plasma torch 100 of the embodiment of the present invention instead of water cooling using air-cooled, subtract Lack loss of the cooling water to energy, improve the utilization rate of electrical of ion gun.At the same time, since air has mobility, Compressed air can also serve as plasma gas after being cooled down to gun body inside and produce plasma arc, improve compression The utilization rate of air.
Air-cooled non transferred arc plasma torch 100 according to embodiments of the present invention, using air cooling way to gun body inside zero Part is cooled down, and simplifies gun configuration, is improved the effective rate of utilization of electric energy, is improved work efficiency, extends ion The service life of rifle.
In certain embodiments, air-cooled non transferred arc plasma torch 100 includes collet 6, and collet 6 is set in air inlet Between pipe 2 and insulator 3, a part for collet 6 is stretched out out of insulator 3 thus, it is possible to prevent user from replacing cathode 5 When be burned.
It is of course also possible to be not provided with collet 6, insulator 3 is designed as stepped, the less one end stretching package 1 of diameter Second end S2 set, and insulator 3 has heat insulating function, can equally play playing a protective role to user.
It is, of course, also possible to air inlet pipe 2 stretch out package 1 second end S2 perisporium on be coated with heat-barrier material or set every Thermosphere is to protect user.
In certain embodiments, the end face towards cathode 5 of anode bodies 4 is equipped with groove, and one end of cathode 5 is stretched into Into groove.Thus, it is possible to increase the interpolar relative area of anode bodies 4 and cathode 5.
Specifically, the inner surface of groove is formed as hemisphere face, and the end face of cathode 5 is formed as the hemisphere face being adapted, this Sample, is not only easily worked, moreover it is possible to ensures that the gap width that is spaced between anode bodies 4 and cathode 5 is uniform, is more conducive to generation Electric arc.
Certainly, it is variously-shaped can also to be formed as plane, convex surface etc. for the end face towards cathode 5 of anode bodies 4.
In certain embodiments, cooling hole 21 is formed as in the pipe by air inlet pipe 2 to the side outside pipe upwardly toward spout 41 The inclined hole of extension, in such air inlet pipe 2 gas spray sprayed towards the direction of anode bodies 4.Thus, compressed air can uniformly be inputted To inside plasma spraying gun.
Certainly, cooling hole 21 can also be formed as straight hole, bellmouth etc..
Specifically, cooling hole 21 is multiple, more specifically, be equipped with more rounds along the axial direction of air inlet pipe 2, per round edge into The circumferential direction of tracheae 2 is formed with multiple cooling holes 21.
In certain embodiments, from air inlet pipe 2 to anode bodies 4, between two components being often connected, used at least one It is threadedly coupled.
Specifically, when not setting collet 6 between air inlet pipe 2 and insulator 3, between air inlet pipe 2 and insulator 3, absolutely Between edge body 3 and package 1, package 1 and anode bodies 4 directly, between air inlet pipe 2 and cathode 5, connected at least one using screw thread Connect.When being equipped with collet 6 between air inlet pipe 2 and insulator 3, between air inlet pipe 2 and collet 6, collet 6 and insulator 3 Between, between insulator 3 and package 1, package 1 and anode bodies 4 directly, between air inlet pipe 2 and cathode 5, adopted at least one It is threadedly coupled.Thus, plasma gun integrally assembles very convenient, and the replacement of especially cathode 5 and anode bodies 4 is very convenient, And threaded connection processing is more convenient, reduces the production cost of air-cooled non transferred arc plasma torch 100.
Certainly, connection mode is not limited to be threadedly coupled, and can also be and is connected using screw, a variety of shapes such as snaps connection Formula.
In certain embodiments, air inlet pipe 2 and package 1 are respectively heat-resisting steel part.It is understood that air inlet pipe 2 and the moon Polar body 5 is connected, and negative current can be passed to cathode 5；Package 1 is connected with anode bodies 4, positive current can be accessed anode bodies 4. Thus, voltage is produced between cathode 5 and anode bodies 4, non-transferred plasma arc is produced after striking.Due to produce non-diverting grade from Substantial amounts of heat can be released during subarc, therefore air inlet pipe 2 and package 1 use heat-resisting steel material, are conducive to extend the two Service life.Certain air inlet pipe 2 and package 1 can also use other heat-resisting conductive materials.
In certain embodiments, cathode 5 and anode bodies 4 are respectively high purity graphite part.High purity graphite is when scaling loss consumes Also heat can be discharged to heat reactant, therefore cathode 5 and anode bodies 4 are not belonging to expendable part, and belong to fuel.By This, whole air-cooled non transferred arc plasma torch 100 does not have expendable part, improves the utilization ratio of electric energy, the efficiency energy of electric energy Reach more than 95%.
Alternatively, cathode 5 and the structure of anode bodies 4 pass through design so that cathode 5 has identical with anode bodies 4 In the service life, the service life of cathode 5 and anode bodies 4 is found out by working experience, when the service life of the two will be to the greatest extent, is stopped, is taken Go out air-cooled non transferred arc plasma torch 100, replace cathode 5 and anode bodies 4.It can so reduce to greatest extent air-cooled The part exchanging time of non transferred arc plasma torch 100, improve work efficiency.
In certain embodiments, insulator 3 is Parts Made of Composite Glass.Insulator 3 plays the role of the positive and negative electrode current of isolation, avoids Failure caused by positive and negative electrode current short circuit occurs.In addition the intensity of fiberglass is larger, can to air-cooled untransferable arc etc. from Sub- rifle 100 plays a protective role.The material of certain insulator 3 is not limited to fiberglass, can also be other insulating materials.
In certain embodiments, cathode 5 is formed as cylinder, and air flue 51 penetrates through the moon on the axial direction of cathode 5 Polar body 5, one end of air flue 51 are formed as covering air inlet pipe 2 beyond macropore, and cathode 5 is coaxially disposed with package 1.
In some optional embodiments, the striking mode of air-cooled non transferred arc plasma torch 100 uses high-frequency and high-voltage Striking or contact starting.
In some optional embodiments, the power bracket that air-cooled non transferred arc plasma torch 100 is born is 50kW- 5000kW。
In some optional embodiments, the size range of air-cooled non transferred arc plasma torch 100 is 100mm- 1000mm。
The air-cooled non transferred arc plasma torch 100 of a specific embodiment of the invention is described below with reference to Fig. 1.
As shown in Figure 1, air-cooled non transferred arc plasma torch 100 includes air inlet pipe 2, and collet 6, insulator 3, package 1, Cathode 5, anode bodies 4.Air inlet pipe 2 is with collet 6 using being threadedly coupled, and collet 6 is used with insulator 3 and is threadedly coupled, absolutely Edge body 3 is with package 1 using being threadedly coupled, and for package 1 with anode bodies 4 using being threadedly coupled, air inlet pipe 2 uses screw thread with cathode 5 Connection.
Package 1 has first end S1 and second end S2, and air inlet pipe 2 is located at second end S2 of in the package 1 and one end from package 1 Stretch out.A part for insulator 3 is located between the second end S2 of package 1 and air inlet pipe 2.Anode bodies 4 are blocked the first of package 1 S1 is held, anode bodies 4 are equipped with spout 41.Cathode 5 is located in package 1, and one end of cathode 5 is connected with air inlet pipe 2, cathode 5 other end is set towards spout 41, and the air flue 51 of connection air inlet pipe 2 is equipped with cathode 5.Air inlet pipe 2, cathode 5 with The spaced apart from inner walls of package 1, the air-cooled passage 7 being connected is limited between air inlet pipe 2, cathode 5 and the inner wall of package 1.It is cloudy Polar body 5 is spaced apart with anode bodies 4 to limit the protection passage 8 communicated with air-cooled passage 7.The tube wall of air inlet pipe 2, which is equipped with, to be connected The cooling hole 21 for cold passage 7 of divulging information.
The material of air inlet pipe 2 is heat resisting steel, and main function is to import compressed air and negative current in cathode 5.
The material of collet 6 is heat-barrier material, and main function is to prevent user from being scalded when dismounting cathode 5.
The material of insulator 3 is fiberglass, and main function is the positive and negative electrode current of isolation.
Cooling hole 21 is formed as the inclined hole that side from inside to outside extends upwardly toward spout 41, can be uniformly defeated by compressed air Enter to inside plasma spraying gun, the lower end and gun body to air inlet pipe 2 play the role of cooling, and compressed air reaches cathode 5 It can also play the role of compression plasma arc guard electrode when between anode bodies 4.
The material of package 1 is heat resisting steel, and main function is the effect that positive electricity is streamed to anode bodies 4.
The material of cathode 5 is high purity graphite, and it is the generation non-transferred plasma arc 9 between anode bodies 4 that it, which is acted on,.
The material of anode bodies 4 is high purity graphite, and it is the generation non-transferred plasma arc 9 between cathode 5 that it, which is acted on,.
Cathode 5 and the structure of anode bodies 4 pass through design so that cathode 5 has the identical service life with anode bodies 4, leads to The service life that working experience finds out negative and positive polar body 4 is spent, when the service life of negative and positive polar body 4 will be to the greatest extent, is stopped, takes out plasma Rifle, replaces negative and positive polar body 4.
Air-cooled non transferred arc plasma torch 100 in the present embodiment is suitable for corona treatment rubbish, flying dust and pot The operating modes such as stove plasma ignition, by varying structure, it is 50kW-5000kW to bear power, and striking mode is drawn using high-frequency and high-voltage Arc or contact starting.
During work, it is necessary at least prepare three plasma guns, in order to replace cathode 5 and anode bodies 4 during not It is interrupted operation.
The air-cooled non transferred arc plasma torch 100 of the present embodiment has the following advantages：
(1) protected using air cooling, simplify the structure of plasma gun.
(2) air inlet pipe 2 is equipped with cooling hole 21 with cathode junction, and compressed air is flowed to inside gun body by cooling hole 21, Gun body inside is preferably cooled down, and after cooling finishes, it is non-that compressed air is also used as plasma gas generation Transferred plasma arc 9.
(3) cathode 5 and anode bodies 4 use high purity graphite, and efficiency can reach more than 95%.In addition graphite Burn under air ambient, the combustion heat can be produced, heat can be used for producing plasma arc.
(4) Life Design of cathode 5 and anode bodies 4 is identical to be convenient for changing, and reduces plasma gun and replaces electrode The time of body.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description Point is contained at least one embodiment of the present invention or example.In the present specification, schematic expression of the above terms is not Necessarily refer to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be any One or more embodiments or example in combine in an appropriate manner.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that：Not In the case of departing from the principle of the present invention and objective a variety of change, modification, replacement and modification can be carried out to these embodiments, this The scope of invention is limited by claim and its equivalent.

Claims (10)

  1. A kind of 1. air-cooled non transferred arc plasma torch, it is characterised in that including：
    Package, the package have a first end and a second end；
    Air inlet pipe, the air inlet pipe are inserted into from the second end of the package；
    Insulator, at least a portion of the insulator are located between the second end of the package and the air inlet pipe；
    Anode bodies, the anode bodies block the first end in the package, and the anode bodies are equipped with spout, the spout and institute State air inlet pipe connection；
    Cathode, the cathode are located in the package, and one end of the cathode stretches to the shell with the air inlet pipe One end of pipe is connected, and the other end of the cathode connects the air inlet towards the notch setting, interior be equipped with of the cathode The air flue of pipe；Wherein,
    The spaced apart from inner walls of the air inlet pipe, the cathode with the package, the air inlet pipe, the cathode with it is described The air-cooled passage being connected is limited between the inner wall of package；
    The cathode is spaced apart with the anode bodies to limit the protection passage communicated with the air-cooled passage；
    The tube wall of the air inlet pipe is equipped with the cooling hole for connecting the air-cooled passage；In addition,
    The package, the air inlet pipe, the anode bodies and the cathode are conductor, and the package is adapted to cathode Electricity, the air inlet pipe are adapted to negative electricity.
  2. 2. air-cooled non transferred arc plasma torch according to claim 1, it is characterised in that further include：Collet, it is described Collet is set between the air inlet pipe and the insulator, and a part for the collet is stretched out out of described insulator.
  3. 3. air-cooled non transferred arc plasma torch according to claim 1, it is characterised in that the anode bodies towards institute The end face for stating cathode is equipped with groove, and one end of the cathode is extend into the groove.
  4. 4. air-cooled non transferred arc plasma torch according to claim 3, it is characterised in that the inner surface shape of the groove As hemisphere face, the end face of the cathode is formed as the hemisphere face being adapted.
  5. 5. air-cooled non transferred arc plasma torch according to claim 1, it is characterised in that the cooling hole be formed as by Inclined hole in the pipe of the air inlet pipe to the side outside pipe upwardly toward spout extension.
  6. 6. the air-cooled non transferred arc plasma torch according to claims 1 or 2, it is characterised in that from the air inlet pipe To the anode bodies, between two components being often connected, using threaded connection at least one.
  7. 7. air-cooled non transferred arc plasma torch according to claim 1, it is characterised in that the air inlet pipe and the shell Pipe is respectively heat-resisting steel part.
  8. 8. air-cooled non transferred arc plasma torch according to claim 1, it is characterised in that the cathode and the sun Polar body is respectively high purity graphite part.
  9. 9. air-cooled non transferred arc plasma torch according to claim 1, it is characterised in that the insulator is fiberglass Part.
  10. 10. air-cooled non transferred arc plasma torch according to claim 1, it is characterised in that the cathode is formed as Cylinder, the air flue penetrate through the cathode on the axial direction of the cathode, and one end of the air flue is formed as big Hole is coaxially disposed with air inlet pipe described in overcoat, the cathode with the package.
CN201711277338.1A 2017-12-06 2017-12-06 Air-cooled non transferred arc plasma torch Pending CN107969059A (en)

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Application Number Priority Date Filing Date Title
CN201711277338.1A CN107969059A (en) 2017-12-06 2017-12-06 Air-cooled non transferred arc plasma torch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201711277338.1A CN107969059A (en) 2017-12-06 2017-12-06 Air-cooled non transferred arc plasma torch

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Publication Number Publication Date
CN107969059A true CN107969059A (en) 2018-04-27

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117500137A (en) * 2023-12-29 2024-02-02 西安赛隆增材技术股份有限公司 Plasma gun, power density adjusting method thereof and plasma atomization powder making equipment

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117500137A (en) * 2023-12-29 2024-02-02 西安赛隆增材技术股份有限公司 Plasma gun, power density adjusting method thereof and plasma atomization powder making equipment
CN117500137B (en) * 2023-12-29 2024-04-02 西安赛隆增材技术股份有限公司 Plasma gun, power density adjusting method thereof and plasma atomization powder making equipment

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