CN111010793A - Small-size high-power non-transfer plasma torch and using method thereof - Google Patents

Small-size high-power non-transfer plasma torch and using method thereof Download PDF

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Publication number
CN111010793A
CN111010793A CN201911295670.XA CN201911295670A CN111010793A CN 111010793 A CN111010793 A CN 111010793A CN 201911295670 A CN201911295670 A CN 201911295670A CN 111010793 A CN111010793 A CN 111010793A
Authority
CN
China
Prior art keywords
cathode
assembly
torch
outer water
water jacket
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.)
Pending
Application number
CN201911295670.XA
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Chinese (zh)
Inventor
贾庆功
张磊
马乐
彭常户
王锦群
方向明
张嘉
杜亚宁
张弛
李扬扬
王志杰
李江伟
王一帆
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.)
Xi'an Juneng Equipment Technology Co ltd
Original Assignee
Xi'an Juneng Equipment Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Xi'an Juneng Equipment Technology Co ltd filed Critical Xi'an Juneng Equipment Technology Co ltd
Priority to CN201911295670.XA priority Critical patent/CN111010793A/en
Publication of CN111010793A publication Critical patent/CN111010793A/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

Abstract

The invention discloses a small-specification high-power non-transfer plasma torch and a using method thereof.A gun head cooling assembly penetrates through a cathode assembly core part, the front end of the gun head cooling assembly is connected with a cathode gun head, and the rear end of the gun head cooling assembly is tightly pressed on the rear end surface of a cathode assembly through a compression nut and a compression pad so as to enable the end surfaces of the front end cathode assembly and the cathode gun head to be attached and tensioned; the cathode component penetrates into the core part of the outer water jacket component, and the rear ends of the cathode component and the outer water jacket component are fixedly connected by a screw; the cathode and anode insulating sleeves are arranged between the outer water sleeve component and the cathode component and isolate the outer water sleeve component from the cathode component; the anode nozzle is locked and fixed on the front end surface of the outer water jacket component by a locking nut; the front and the back of the air guide sleeve are respectively compressed and fixed by a cathode component and an anode nozzle; the plasma torch is connected and fixed with the equipment by a mounting plate on the outer water jacket assembly. The structure is simple and compact, the assembly is easy, the power is high, the application range is wide, and the service life is long.

Description

Small-size high-power non-transfer plasma torch and using method thereof
Technical Field
The invention belongs to the technical field of plasma, and particularly relates to a small-size high-power non-transfer plasma torch and a using method thereof.
Background
The plasma torch is a plasma generating device, and the maximum temperature of the plasma is as high as thousands of degrees centigrade or even tens of thousands of degrees centigrade, so the plasma torch is widely applied to various occasions such as cutting, welding, smelting and the like. In practical applications, the output power of the plasma torch has a significant impact on its range of applications. The high-power plasma torch can generate more plasmas and higher plasma flame temperature in unit time, and is favorable for realizing higher production efficiency and higher product quality. However, as the power of the plasma torch is increased, the size of the plasma torch is generally larger, and the plasma torch cannot be applied in practical application due to the limitation of the size requirement of equipment.
The conventional small-specification non-transfer plasma torch has small power, and the application range of the plasma torch is limited to a certain extent. Although the power of the transfer type plasma torch is higher than that of a non-transfer type plasma torch with the same specification, the structure of the whole set of equipment is complicated and certain potential safety hazard exists because an acted part needs to be electrified and the voltage generally exceeds the specified safe voltage in the using process, so that the application of the transfer type plasma torch also has certain limitation. The plasma torch has the problems of small power, limited application range, complex structure and the like.
Disclosure of Invention
The invention aims to provide a small-specification high-power non-transfer plasma torch and a using method thereof, which solve the problems of small power, limited application range and complex structure of the existing plasma torch.
The purpose of the invention is solved by the following technical scheme:
a small-specification high-power non-transfer plasma torch comprises a torch head cooling assembly, a cathode assembly and a cathode torch head;
the front end of the gun head cooling assembly penetrates through the core part of the cathode assembly and is connected with the cathode gun head, and the rear end of the gun head cooling assembly is connected with the cathode assembly.
Further: an outer water jacket assembly penetrates through the cathode assembly, and the outer water jacket assembly and the cathode assembly are fixed through screws.
Further: and a cathode and anode insulating sleeve is arranged between the outer water jacket assembly and the cathode assembly.
Further: and the front end surface of the outer water jacket assembly is provided with an anode nozzle, and the anode nozzle is fixed with the outer water jacket assembly through a locking nut.
Further: and an air guide sleeve is arranged between the cathode component and the anode nozzle.
Further: the welding has the mounting panel that is used for being connected with equipment on the outer water jacket subassembly.
Further: and a compression pad is arranged between the rear end of the gun head cooling assembly and the rear end face of the cathode assembly, and the gun head cooling assembly is fixed with the cathode assembly through the compression pad and a compression nut.
Further: the cathode gun head comprises a gun head base body and a gun tip, and the gun head base body is connected with the gun tip.
Further: the gun head base body is made of T2 copper, and the gun tip is made of high-temperature-resistant tungsten lanthanum alloy.
A use method of a small-specification high-power non-transfer plasma torch specifically comprises the following steps:
1) cooling water is respectively introduced into three cooling loops of the plasma torch, and certain pressure and flow are ensured, wherein the pressure is more than or equal to 0.4MPa, and the flow is more than or equal to 8m3/h；
2) Connecting the cathode component to the cathode of a plasma power supply;
3) connecting the outer water jacket assembly to the anode of a plasma power supply;
4) introducing plasma gas into a passage between the outer water jacket assembly and the cathode and anode insulating jackets, wherein the plasma gas is a mixed gas of argon and helium, and the ratio is 9: 1;
5) and starting a power supply, sequentially carrying out high-frequency ignition and arc striking current loading, and carrying out loading of working current after the plasma is generated and sprayed out of the anode nozzle.
Compared with the prior art, the beneficial effect that this application has is: the plasma torch is connected and fixed with the equipment by a mounting plate on the outer water jacket assembly. The structure is simple and compact, the assembly is easy, the power is high, the application range is wide, and the service life is long.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of a cathode gun head according to the present invention;
FIG. 3 is a schematic view of an anode nozzle of the present invention;
fig. 4 is a schematic structural view of the air guide sleeve of the present invention.
Wherein: 1. a gun head cooling assembly; 2. a compression nut; 3. a compression pad; 4. a cathode assembly; 5. a male and female insulating sleeve; 6. an outer water jacket assembly; 7. mounting a plate; 8. a gas guide sleeve; 9. a cathode gun head; 10. an anode nozzle; 11. and locking the nut.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings:
as shown in fig. 1-3, the small-scale high-power non-transfer plasma torch comprises a torch head cooling assembly 1, a cathode assembly 4 and a cathode torch head 9.
The front end of the lance tip cooling assembly 1 passes through the core of the cathode assembly 4 and is connected to a cathode lance tip 9.
And a pressing pad 3 is arranged between the rear end of the gun head cooling assembly 1 and the rear end face of the cathode assembly 4, and the gun head cooling assembly 1 is fixed with the cathode assembly 4 through the pressing pad 3 and a pressing nut 2 so as to enable the front end cathode assembly 4 and the end face of the cathode gun head 9 to be attached and tensioned.
An outer water jacket assembly 6 penetrates through the cathode assembly 4, and the outer water jacket assembly 6 and the cathode assembly 4 are fixed through screws.
And a cathode and anode insulating sleeve 5 is arranged between the outer water jacket assembly 6 and the cathode assembly 4, and the cathode and anode insulating sleeve 5 is arranged between the outer water jacket assembly 6 and the cathode assembly 4 and isolates the two.
An anode nozzle 10 is arranged on the front end face of the outer water jacket assembly 6, and the anode nozzle 10 is fixed with the outer water jacket assembly 6 through a locking nut 11.
Referring to fig. 4, an air guide sleeve 8 is arranged between the cathode assembly 4 and the anode nozzle 10, and the front and the rear of the air guide sleeve 8 are respectively pressed and fixed by the cathode assembly 4 and the anode nozzle 10.
And an installation plate 7 for connecting with equipment is welded on the outer water jacket assembly 6.
The cathode gun head 9 comprises a gun head base body and a gun tip, wherein the gun head base body and the gun tip are in an embedded combined structure, the gun head base body is made of T2 copper, and the gun tip is made of high-temperature-resistant tungsten lanthanum alloy.
The plasma torch is provided with three independent cooling loops, namely an outer water jacket assembly 6 cooling loop, a cathode assembly 4 cooling loop and a gun head cooling assembly 1 cooling loop.
The core part of the outer water jacket component 6 and the outer walls of the male and female insulating sleeves 5 form a plasma gas channel.
The plasma gas for the working of the plasma torch is a mixed gas of argon and helium, and the ratio of the argon to the helium is 9: 1.
A use method of a small-specification high-power non-transfer plasma torch specifically comprises the following steps:
1) cooling water is respectively introduced into three cooling loops of the plasma torch, and certain pressure and flow are ensured, wherein the pressure is more than or equal to 0.4MPa, and the flow is more than or equal to 8m3/h。
2) The cathode assembly 4 is connected to the cathode of the plasma power supply.
3) The outer water jacket assembly 6 was connected to the anode of the plasma power supply.
4) And introducing plasma gas into a passage between the outer water jacket assembly 6 and the cathode and anode insulating jackets 5, wherein the plasma gas is a mixed gas of argon and helium, and the ratio of the plasma gas to the helium is 9: 1.
5) And starting a power supply, sequentially carrying out high-frequency ignition and arc striking current loading, and carrying out loading of working current after the plasma is generated and sprayed out of the anode nozzle 10.
The maximum output power can reach 200KW through the embodiment, and the device is simple and compact in structure, easy to assemble, high in power, wide in application range and long in service life.
It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that an article or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above description is merely exemplary of the present application and is presented to enable those skilled in the art to understand and practice the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
It is to be understood that the present application is not limited to what has been described above, and that various modifications and changes may be made without departing from the scope thereof. The scope of the application is limited only by the appended claims.

Claims (10)

1. A small-specification high-power non-transfer plasma torch is characterized by comprising a torch head cooling assembly (1), a cathode assembly (4) and a cathode torch head (9);
the front end of the gun head cooling assembly (1) penetrates through the core part of the cathode assembly (4) and is connected with a cathode gun head (9), and the rear end of the gun head cooling assembly (1) is connected with the cathode assembly (4).
2. The small-scale high-power non-transfer plasma torch as claimed in claim 1, wherein the cathode assembly (4) is provided with an outer water jacket assembly (6) in a penetrating way, and the outer water jacket assembly (6) and the cathode assembly (4) are fixed through screws.
3. A small-gauge high-power non-transferred plasma torch according to claim 2, characterized in that a male and female insulating sleeve (5) is arranged between the outer water jacket assembly (6) and the cathode assembly (4).
4. The small-scale high-power non-transfer plasma torch as claimed in claim 2, wherein the front end surface of the outer water jacket assembly (6) is provided with an anode nozzle (10), and the anode nozzle (10) is fixed with the outer water jacket assembly (6) through a locking nut (11).
5. A small-gauge high-power non-transferred plasma torch according to claim 4, characterized in that a gas guiding sleeve (8) is arranged between the cathode assembly (4) and the anode nozzle (10).
6. A small-gauge high-power non-transferred plasma torch according to claim 2, characterized in that the outer water jacket assembly (6) has welded thereto a mounting plate (7) for connection with equipment.
7. The small-scale high-power non-transfer plasma torch as claimed in claim 1, wherein a compression pad (3) is arranged between the rear end of the torch head cooling assembly (1) and the rear end face of the cathode assembly (4), and the torch head cooling assembly (1) is fixed with the cathode assembly (4) through the compression pad (3) and the compression nut (2).
8. The small-scale high-power non-transferred plasma torch as claimed in claim 1, wherein the cathode torch head (9) comprises a torch head base body and a torch tip, and the torch head base body is connected with the torch tip.
9. The small-gauge high-power non-transferred plasma torch as claimed in claim 8, wherein the torch tip base is T2 copper and the torch tip is made of high temperature resistant tungsten lanthanum alloy.
10. A use method of a small-specification high-power non-transfer plasma torch is characterized by specifically comprising the following steps of:
1) cooling water is respectively introduced into three cooling loops of the plasma torch, and certain pressure and flow are ensured, wherein the pressure is more than or equal to 0.4MPa, and the flow is more than or equal to 8m3/h；
2) Connecting the cathode component (4) to the cathode of a plasma power supply;
3) connecting the outer water jacket assembly (6) to the anode of a plasma power supply;
4) introducing plasma gas into a passage between the outer water jacket assembly (6) and the cathode and anode insulating jackets (5), wherein the plasma gas is a mixed gas of argon and helium in a ratio of 9: 1;
5) and starting a power supply, sequentially carrying out high-frequency ignition and arc striking current loading, and carrying out loading of working current after the plasma is generated and sprayed out of the anode nozzle (10).
CN201911295670.XA 2019-12-16 2019-12-16 Small-size high-power non-transfer plasma torch and using method thereof Pending CN111010793A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911295670.XA CN111010793A (en) 2019-12-16 2019-12-16 Small-size high-power non-transfer plasma torch and using method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911295670.XA CN111010793A (en) 2019-12-16 2019-12-16 Small-size high-power non-transfer plasma torch and using method thereof

Publications (1)

Publication Number Publication Date
CN111010793A true CN111010793A (en) 2020-04-14

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Application Number Title Priority Date Filing Date
CN201911295670.XA Pending CN111010793A (en) 2019-12-16 2019-12-16 Small-size high-power non-transfer plasma torch and using method thereof

Country Status (1)

Country Link
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110536532A (en) * 2019-09-05 2019-12-03 河北宝炬新材料科技有限公司 A kind of arc plasma generator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110536532A (en) * 2019-09-05 2019-12-03 河北宝炬新材料科技有限公司 A kind of arc plasma generator

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