CN1278813C - Alternating controlled pulse ion-gas plasma welding gun - Google Patents
Alternating controlled pulse ion-gas plasma welding gun Download PDFInfo
- Publication number
- CN1278813C CN1278813C CN 03132634 CN03132634A CN1278813C CN 1278813 C CN1278813 C CN 1278813C CN 03132634 CN03132634 CN 03132634 CN 03132634 A CN03132634 A CN 03132634A CN 1278813 C CN1278813 C CN 1278813C
- Authority
- CN
- China
- Prior art keywords
- gas
- argon
- helium
- welding gun
- ion
- 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.)
- Expired - Fee Related
Links
Images
Abstract
The present invention relates to an alternating controllable pulse ion gas plasma welding gun which is an improvement of the existing plasma welding gun. The present invention is characterized in that a gun body (1) is provided with a shield gas input hole (2); the gun body (1) is provided with an ion gas output outlet (4) at the end of a tungsten electrode (3); a welding gun chamber (5) which is communicated with the ion gas output outlet (4) is arranged inside the gun body (1); besides, the gun body (1) is also provided with two gas input inlets (6) which are communicated with the welding gun chamber (5), and the inner sides of the two gas input inlets (6) are respectively provided with an electromagnetic valve (7). In this way, argon gas and helium-argon mixed gas can be respectively input through the two gas input inlets to achieve alternating pulse type ion gas of the argon gas and the helium-argon mixed gas, namely that the argon gas and the helium-argon mixed gas are controlled to be used alternatively as the ion gas. Because the argon gas and the helium-argon mixed gas have different heat-loading values, the alternating pulse type ion gas can achieve the pulse action of electric arc heat quantity.
Description
Technical field: the present invention is the improvement to existing plasma gun.
Background technology: in the plasma welding termination process, the arc voltage of helium is apparently higher than the arc voltage of argon gas.General helium is high more about 50% than the ionization voltage of argon gas, and like this at identical electric current, under the identical speed of welding, the output energy of helium is 1.5 times of argon gas.Even the power of argon arc and heliarc is about equally, but the energy peak of heliarc and electric arc radius size still greater than argon arc, what through welding can the force rate argon arc is strong, so the fusion penetration of heliarc dark than argon arc, that also want in the molten bath is big.In addition, the thermal conductivity of helium is about 10 times of argon gas.Because helium makes heliarc arc column concentration of energy to the strong cooling contraction of electric arc, the temperature height helps the METAL HEATING PROCESS fusing, and but then, the thermal conductivity of helium can be strengthened the electric arc cooling well, and this is the main cause of heliarc combustion instability.In addition, ionization potential makes that than the height of argon heliarc is difficult for igniting.So consider to adopt helium argon-mixed as ion gas, in the helium argon gas to add fashionable striking easy, arc stability can reduce welding cost.And the thermal conductivity of helium, arc voltage are all very high, and hot input quantity just is far longer than traditional argon arc welding in welding process.And after adopting helium argon-mixed, combine heliarc welding and argon arc welding advantage separately, and both made arc stability, arc temperature is improved, concentration of energy also strengthens fusion penetration thereupon.From the theory to reality, solve the not enough for example red copper welding of problem of thermal source input that those thermal conductivity height, rapid heat dissipation cause like this.Existing plasma gun in carrying out plasma welding, need protection usually gas and ion gas, protection gas is can play a protective role when welding, ion gas is ionizable formation electric arc.Because existing plasma gun has only a gas input port, therefore generally in the plasma welding, all adopt argon gas usually, both protected gas, also make ion gas.And this requires the welding of the big material of hot input quantity (as red copper) just to show hot input quantity deficiency for some.And use helium argon-mixed the time as ion gas, and can reach instructions for use, but the amount that expends helium is many, cost is higher, and hot on the other hand input quantity is also bigger, easily forms bigger welding deformation and residual stress.
Summary of the invention:, the invention provides a kind of alternation controllable pulse ion gas plasma gun for solving existing plasma gun owing to importing the problem that a kind of gas exists.Have protective gas input hole 2 on the rifle body 1 of plasma gun of the present invention; the position that is positioned at tungsten electrode 3 ends on rifle body 1 has an ion gas delivery outlet 4; the welding gun thorax 5 that is connected with ion gas delivery outlet 4 is arranged in the inside of rifle body 1; two gas input ports 6 that communicate with welding gun thorax 5 are arranged on rifle body 1; respectively there are 7, two magnetic valves of a magnetic valve (7) to be connected with controller (8) through lead respectively in the inboard of two gas input ports 6.The welding gun of our transformation of process can import argon gas respectively by two gas input ports and helium is argon-mixed, realize the ion gas of argon gas and the argon-mixed alternating impulse formula of helium, promptly argon-mixed alternately as ion gas by control realization argon gas and helium, because the heat-carrying value of argon gas and gaseous mixture is inequality, so adopt the ion gas of alternating impulse formula just can reach the impulse action of electric arc heat.Not only corresponding fusion penetration can be reached but also the input of gross energy can be reduced accordingly, can effectively reduce welding deformation and residual stress, can save the use amount of helium, reduce cost, the energy of impulse form input simultaneously can realize stirring action, improves weldquality.Welding gun of the present invention has following advantage: 1, for requiring the higher welding material of hot quantity can realize the fusion penetration that requires, 2, the input energy is lower, reduce hot input and can effectively reduce welding deformation and residual stress, 3, can save the use amount of helium, reduce cost, 4, the energy of impulse form input simultaneously can realize stirring action, improves weldquality.This welding gun mainly is argon-mixed as the research of carrying out under the ALT pulse ion gas situation at adopting argon gas and helium, in fact other gases also can be used as ALT pulse ion gas, for example: pure argon and pure helium ALT pulse ion gas, argon-mixed and the pure helium ALT pulse of helium ion gas, the gaseous mixture ALT pulse ion gas of two kinds of different proportions, add the gaseous mixture (as hydrogen, nitrogen) of other gases and ALT pulse ion gas of pure argon or the like, at different purposes so long as the gas of heterogeneity just can adopt ALT pulse ion gas to weld.
Description of drawings: Fig. 1 is a structural representation of the present invention.
The specific embodiment: consult Fig. 1; the welding gun of present embodiment is to have protective gas input hole 2 on rifle body 1; the position that is positioned at tungsten electrode 3 ends on rifle body 1 has an ion gas delivery outlet 4; the welding gun thorax 5 that is connected with ion gas delivery outlet 4 is arranged in the inside of rifle body 1; two gas inlet pipes 9 that communicate with welding gun thorax 5 are arranged on rifle body 1; the other end of two gas inlet pipes 9 has gas input port 6, in the inboard of two gas input ports 6 magnetic valve 7 is arranged respectively.Two magnetic valves 7 are connected with controller 8 through lead respectively.
Claims (2)
1, alternation controllable pulse ion gas plasma gun; it has protective gas input hole (2) on rifle body (1); it is characterized in that the position that is positioned at tungsten electrode (3) end on rifle body (1) has an ion gas delivery outlet (4); the welding gun thorax (5) that is connected with ion gas delivery outlet (4) is arranged in the inside of rifle body (1); two gas input ports (6) that communicate with welding gun thorax (5) are arranged on rifle body (1); in the inboard of two gas input ports (6) magnetic valve (7) is arranged respectively, two magnetic valves (7) are connected with controller (8) through lead respectively.
2, alternation controllable pulse ion gas plasma gun according to claim 1 is characterized in that the gas inlet pipe (9) that has two to communicate with welding gun thorax (5) on rifle body (1), the other end of two gas inlet pipes (9) has gas input port (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03132634 CN1278813C (en) | 2003-09-26 | 2003-09-26 | Alternating controlled pulse ion-gas plasma welding gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03132634 CN1278813C (en) | 2003-09-26 | 2003-09-26 | Alternating controlled pulse ion-gas plasma welding gun |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1528553A CN1528553A (en) | 2004-09-15 |
| CN1278813C true CN1278813C (en) | 2006-10-11 |
Family
ID=34286056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03132634 Expired - Fee Related CN1278813C (en) | 2003-09-26 | 2003-09-26 | Alternating controlled pulse ion-gas plasma welding gun |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1278813C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101642853B (en) * | 2008-08-06 | 2011-09-28 | 中国科学院沈阳自动化研究所 | Laser welding protective nozzle |
| JP6009231B2 (en) * | 2012-06-07 | 2016-10-19 | 株式会社ダイヘン | Plasma welding torch and plasma welding equipment |
| CN105430863A (en) * | 2016-01-15 | 2016-03-23 | 成都布雷德科技有限公司 | Plasma generator based on glide arc discharge principle |
-
2003
- 2003-09-26 CN CN 03132634 patent/CN1278813C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1528553A (en) | 2004-09-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7281478B2 (en) | Assembled cathode and plasma igniter with such cathode | |
| US3673375A (en) | Long arc column plasma generator and method | |
| CN103391678A (en) | Plasma torch of non-transferred and hollow type | |
| JP2010511285A (en) | Plasma apparatus and system | |
| US3204076A (en) | Electric arc torch | |
| Makarov et al. | Electromagnetism and the arc efficiency of electric arc steel melting furnaces | |
| CN102528249A (en) | Condensation electric arc welding gun | |
| CN1278813C (en) | Alternating controlled pulse ion-gas plasma welding gun | |
| CN110881239B (en) | Multi-arc plasma reactor introducing external magnetic field and operation method | |
| CN1283407C (en) | Electric-arc blowing-force controlled pulse protective gas TIG or MIG welding gun | |
| Mishima et al. | Numerical simulation on plasma property in TIG-MIG hybrid welding process | |
| CN111299254A (en) | Direct injection type plasma cleaning machine | |
| ES2017440A6 (en) | Fluid cooled plasma burner with transferred arc. | |
| CN211965242U (en) | Direct injection type plasma cleaning machine | |
| CN205667006U (en) | High -power hollow cathode discharge device of compact | |
| CN108601193A (en) | A kind of long scale uniform heat plasma arcs production method and device | |
| Bokari et al. | Energy balance for a DC plasma torch | |
| CN207835895U (en) | The cathode and plasma generator of plasma generator | |
| CN207720497U (en) | Plasma gun and plasma apparatus with it | |
| CN206042498U (en) | Laminar flow plasma generator | |
| Shchitsyn et al. | Effect of polarity on the heat input into the nozzle of a plasma torch | |
| Iwao et al. | Heating efficiency of twin torch plasma arc | |
| CN217900454U (en) | Improved internal cooling device for plasma furnace | |
| RU2524173C1 (en) | Melting plasmatron | |
| Pascale et al. | Parametric study of a vortex-enhanced supersonic inductively coupled plasma torch |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |