CN106944728A - A kind of small Hole plasma welding rifle of the miniature depth of full water cooling type - Google Patents
A kind of small Hole plasma welding rifle of the miniature depth of full water cooling type Download PDFInfo
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- CN106944728A CN106944728A CN201710366212.5A CN201710366212A CN106944728A CN 106944728 A CN106944728 A CN 106944728A CN 201710366212 A CN201710366212 A CN 201710366212A CN 106944728 A CN106944728 A CN 106944728A
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- anode
- pipette tips
- nozzle
- negative electrode
- water cooling
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- 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
- B23K10/00—Welding or cutting by means of a plasma
- B23K10/02—Plasma welding
- B23K10/027—Welding for purposes other than joining, e.g. build-up welding
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Plasma Technology (AREA)
Abstract
The invention discloses a kind of miniature small Hole plasma welding rifle of depth, belong to plasma spray welding gun technical field.A kind of small Hole plasma welding rifle of the miniature depth of full water cooling type of the present invention, including anode pipette tips, with the negative electrode pipette tips and nozzle being embedded in anode pipette tips, insulation sleeve is provided between the anode pipette tips and negative electrode pipette tips, there is waterway between the anode pipette tips and nozzle, and the anode cooling water access way connected with waterway is offered in anode pipette tips, interconnected anode pipette tips powder feeding gas passage and nozzle powder feeding gas passage is offered in the anode pipette tips and nozzle respectively, interconnected anode pipette tips ion-gas passage and nozzle ion-gas passage is further opened with.Compact conformation of the present invention is reasonable, practical, the anode of plasma spray welding gun and negative electrode being capable of direct water-coolings, good heat dissipation effect, plasma spray welding gun long-time continuous sequence under high temperature operating conditions can be realized, the welding of the diameter ＜ 36mm deep endoporus of workpiece can be applied to.
Description
Technical field
The present invention relates to a kind of miniature small Hole plasma welding rifle of depth, the particularly a kind of small endoporus of miniature depth of full water cooling type
Plasma spray welding gun, belongs to plasma spray welding gun technical field.
Background technology
With advances in technology, at present for the anti-corrosion of piece surface, wearability requirement also more and more higher.Such as steam turbine
Part containing diameter of bore ＜ 40mm in filling valve, its inner surface needs one layer of antifriction anticorrosion alloy of cladding, you can pass through
Ion spray weld alloy powder technology is produced.But, current minimum small endoporus deep hole plasma spray welding gun (patent
CN200810147856.6) can only surfacing diameter of bore >=36mm workpiece, for deep diameter of bore ＜ 36mm part, its nothing
Method carries out welding, and its negative electrode, anode cooling effect are bad, it is impossible to continuous sequence at high temperature for a long time；The plasma spray
Rifle is bad due to radiating, and negative electrode is easily generated heat, and nozzle is damaged because water-cooled is bad, and sealing ring is poorly sealed at high temperature, causes
Plasma spray welding gun is set the situation of leak occur.
The content of the invention
The present invention goal of the invention be：For above-mentioned problem, there is provided a kind of small endoporus of miniature depth of full water cooling type
Plasma spray welding gun, compact conformation of the present invention is rationally, practical, and the anode of plasma spray welding gun and negative electrode being capable of direct water
Cold, good heat dissipation effect can realize plasma spray welding gun long-time continuous sequence under high temperature operating conditions, so as to reduce
The joint quantity of overlay cladding, disposably usually can complete inner hole of workpiece surfacing, it is ensured that welding quality, can be applied to diameter
＜ 36mm's, the welding of the particularly diameter ＜ 26mm deep endoporus of workpiece.
The technical solution adopted by the present invention is as follows：
A kind of small Hole plasma welding rifle of the miniature depth of full water cooling type, including anode pipette tips, and the moon being embedded in anode pipette tips
Pole pipette tips and nozzle, are provided with insulation sleeve between the anode pipette tips and negative electrode pipette tips, have water between the anode pipette tips and nozzle
Offered in cold chamber, and anode pipette tips in the anode cooling water access way connected with waterway, the anode pipette tips and nozzle
Interconnected anode pipette tips powder feeding gas passage and nozzle powder feeding gas passage is offered respectively, is further opened with interconnected anode
Pipette tips ion-gas passage and nozzle ion-gas passage.Insulation sleeve makes anode pipette tips isolate with negative electrode pipette tips mutually insulated；Waterway
And the design of anode cooling water access way, cooling water can be made to be contacted with the direct of nozzle large area, be conducive to anode pipette tips
Radiating, particularly nozzle radiating, it is possible to increase the service life of plasma spray welding gun, when enabling plasma spray welding gun long
Between continuous sequence.
Negative electrode is set with a kind of small Hole plasma welding rifle of the miniature depth of full water cooling type of the present invention, the negative electrode pipette tips
There is gap, the gap connects to form cooled cathode water with the inner chamber of negative electrode water pipe between water pipe, and negative electrode water pipe and negative electrode pipette tips
Access way.The inner chamber of negative electrode water pipe is as negative electrode intake tunnel, and the gap between negative electrode water pipe and negative electrode pipette tips goes out as negative electrode
Aquaporin.Make between negative electrode pipette tips can direct water-cooling, be conducive to negative electrode pipette tips and the parts that are assembled in negative electrode pipette tips dissipate
Heat, it is further to ensure that plasma spray welding gun long-time continuous sequence.
Negative electricity is equipped with a kind of small Hole plasma welding rifle of the miniature depth of full water cooling type of the present invention, the negative electrode pipette tips
In pole, and negative electrode one end insertion nozzle ion-gas passage.
Further, electrode tip holder is set with the negative electrode, negative electrode is assemblied in negative electrode pipette tips by electrode tip holder.Just
In negative electrode is assemblied in negative electrode pipette tips.
Further, pilot hole is offered in the anode pipette tips, pilot hole is located above negative electrode.It is easy to the dress of nozzle
Match somebody with somebody, and be easy to the installation and dismounting of negative electrode, be easy to the replacing of negative electrode.
A kind of small Hole plasma welding rifle of the miniature depth of full water cooling type of the present invention, the anode cooling water access way bag
Anode intake tunnel and anode exhalant canal are included, the anode pipette tips end is provided with water cooling chamber, the anode intake tunnel, water
Cold chamber, water cooling chamber are sequentially connected in series with anode exhalant canal and connected.The design of water cooling chamber, can further improve anode pipette tips
Radiating effect.
A kind of small Hole plasma welding rifle of the miniature depth of full water cooling type of the present invention, the nozzle includes plasma nozzle,
With the powder feeding gas jets on the outside of plasma nozzle, the waterway be located between anode pipette tips and plasma nozzle, nozzle from
Sub- gas passage is located in plasma nozzle, and nozzle powder feeding gas passage is located in powder feeding gas jets.The split design of nozzle, is easy to spray
The manufacture and assembly of mouth, are especially easy for the assembling of plasma nozzle.
Further, the plasma nozzle is connected with anode pipette tips by welding manner, the powder feeding gas jets and sun
Pole pipette tips are connected by screw thread or welding manner.Plasma nozzle is welded to connect with anode pipette tips, it is ensured that waterway is sealed, no
Leak.
Powder is further opened with a kind of small Hole plasma welding rifle of the miniature depth of full water cooling type of the present invention, the anode pipette tips
Last hybrid chamber, the anode pipette tips powder feeding gas passage is connected by powder hybrid chamber with nozzle powder feeding gas passage.Powder hybrid chamber
The powder being designed with beneficial to welding with the gas for conveying powder is full and uniform mixes, be conducive to powder to uniformly enter molten
Pond.
The present invention a kind of small Hole plasma welding rifle of the miniature depth of full water cooling type, the anode pipette tips using diameter≤
26mm red copper bar is made.Make the welding of the deep endoporus of the workpiece that can be applied to diameter ＜ 36mm of the present invention.
In summary, by adopting the above-described technical solution, the beneficial effects of the invention are as follows：
1st, a kind of small Hole plasma welding rifle of the miniature depth of full water cooling type of the invention, compact conformation is rationally, practical, wait from
The anode of sub- spray welding gun and negative electrode can direct water-cooling, good heat dissipation effect can realize plasma spray welding gun in hot operation bar
Long-time continuous sequence under part, usually can be disposably by inner hole of workpiece surfacing so as to reduce the joint quantity of overlay cladding
Complete, it is ensured that welding quality.
2nd, the Combination Design of negative electrode intake tunnel and negative electrode exhalant canal, is conducive to negative electrode pipette tips and is assembled in negative electrode pipette tips
On parts radiating.
3rd, the Combination Design of anode intake tunnel, waterway, water cooling chamber and anode exhalant canal, be conducive to anode pipette tips and
The radiating of nozzle.
4th, the design of plasma nozzle and the welding connecting mode of anode pipette tips, it can be ensured that waterway is sealed, water-tight,
Make the present invention reliability and durability.
5th, the design that anode pipette tips are made of a diameter of 12-26mm red copper bar, makes being applied to for the present invention
The welding of the welding, the particularly deeply small interior internal surface of hole of diameter ＜ 26mm workpiece of the deep endoporus of diameter ＜ 36mm workpiece.
Brief description of the drawings
Examples of the present invention will be described by way of reference to the accompanying drawings, wherein：
Fig. 1 is a kind of structural representation of the small Hole plasma welding rifle of the miniature depth of full water cooling type；
Fig. 2 is the sectional view of the line A-A along along Fig. 1；
Fig. 3 is the sectional view of the line B-B along along Fig. 1.
Marked in figure：1- anodes pipette tips, 11- cover plates, 2- insulation sleeves, 3- negative electrodes pipette tips, 4- electrode tip holders, 5- negative electrodes, 6-
Nozzle, 61- plasma nozzles, 62- powder feedings gas jets, a1- negative electrodes intake tunnel, a2- negative electrodes exhalant canal, the water inlet of b1- anodes
Passage, b2- waterways, b3- water cooling chambers, b4- anodes exhalant canal, c1- anode pipette tips powder feeding gas passage, c2- powder hybrid chamber,
C3- nozzle powder feeding gas passage, d1- anode pipette tips ion-gas passage, d2- nozzle ion-gas passage, e- pilot holes.
Embodiment
All features disclosed in this specification, or disclosed all methods or during the step of, except mutually exclusive
Feature and/or step beyond, can combine in any way.
Any feature disclosed in this specification, unless specifically stated otherwise, can be equivalent by other or with similar purpose
Alternative features are replaced.I.e., unless specifically stated otherwise, each feature is an example in a series of equivalent or similar characteristics
.
As shown in Figure 1 to Figure 3, a kind of small Hole plasma welding rifle of the miniature depth of full water cooling type of the present embodiment, including sun
Pole pipette tips 1, and the negative electrode pipette tips 3 being embedded in anode pipette tips 1 and nozzle 6, are set between the anode pipette tips 1 and negative electrode pipette tips 3
There is insulation sleeve 2, having between the anode pipette tips 1 and nozzle 6 offered in waterway b2, and anode pipette tips 1 and waterway b2 companies
Interconnected anode pipette tips powder feeding is offered in logical anode cooling water access way, the anode pipette tips 1 and nozzle 6 respectively
Gas passage c1 and nozzle powder feeding gas passage c3, is further opened with interconnected anode pipette tips ion-gas passage d1 and nozzle ion-gas
Passage d2.Insulation sleeve 2 makes anode pipette tips 1 isolate with the mutually insulated of negative electrode pipette tips 3；Waterway b2 and anode cooling water access way
Design, directly contacting for cooling water and the large area of nozzle 6 can be made, be conducive to the radiating of anode pipette tips 1, particularly nozzle 6
Radiating, it is possible to increase the service life of plasma spray welding gun, enable plasma spray welding gun long-time continuous sequence.
Specifically, as shown in figure 1, anode pipette tips 1 have in the radial direction is used to assemble the eccentric macropores of negative electrode pipette tips 3,
And the eccentric macropore does not run through anode pipette tips 1, negative electrode pipette tips 3 are closely wrapped up by insulation sleeve 2, and insulation sleeve 2 is organic or inorganic
Insulating materials is made；The negative electrode pipette tips 3 of insulation sleeve 2 are set with to be embedded in eccentric macropore.Have in the vertical direction of anode pipette tips 1 and use
In the bottom outlet of assembling nozzle 6, bottom outlet and eccentric macropore are perpendicular and connect, and nozzle 6 is embedded in bottom outlet.
Specifically, waterway b2 is ring-type, the outer wall of nozzle 6 is surrounded on；Nozzle powder feeding gas passage c3 is distributed for annular array
Powder feeding hole or powder delivery groove, be easy to powder to uniformly enter molten bath.
Further optimization based on the present embodiment, in another embodiment, as shown in Figure 1 to Figure 3, the negative electrode pipette tips
Being set with 3 between negative electrode water pipe 31, and negative electrode water pipe 31 and negative electrode pipette tips 3 has gap, and the gap is interior with negative electrode water pipe 31
Chamber connects to form cooled cathode water access way.The inner chamber of negative electrode water pipe 31 as negative electrode intake tunnel a1, negative electrode water pipe 31 with
3 gap is used as negative electrode exhalant canal a2 between negative electrode pipette tips.Enable 3 direct water-coolings between negative electrode pipette tips, be conducive to negative electrode pipette tips 3
And the radiating of the parts in negative electrode pipette tips 3 is assembled in, it is further to ensure that plasma spray welding gun long-time continuous sequence.
Specifically, as shown in figure 1, the water outlet end of negative electrode water pipe 31 be angle or flat mouth shape, and the water outlet end of negative electrode water pipe 31 with
There is a certain distance between the inner face of negative electrode pipette tips 3.
Further optimization based on the present embodiment, in another embodiment, as depicted in figs. 1 and 2, the negative electrode pipette tips
It is equipped with 3 in negative electrode 5, and the one end of negative electrode 5 insertion nozzle ion-gas passage d2.Specifically, negative electrode 5 is tungsten electrode；It is excellent
Choosing, negative electrode 5 is cerium tungsten electrode.Specifically, the circular hole run through for assembling negative electrode is longitudinally offered in negative electrode pipette tips 3,
The circular hole is located at ion-gas passage d2 surface, and is same axis with ion-gas passage d2, and negative electrode 5 is assemblied in circular hole
Interior, the tip of negative electrode 5 is located in nozzle ion-gas passage d2.
Further, in another embodiment, as depicted in figs. 1 and 2, electrode tip holder 4 is set with the negative electrode 5, it is cloudy
Electrode 5 is assemblied in negative electrode pipette tips 3 by electrode tip holder 4.It is easy to negative electrode 5 being assemblied in negative electrode pipette tips 3.Specifically, electrode
Seat 4 is made of red copper material, and electrode tip holder 4 is threadedly connected with negative electrode pipette tips 3, naturally it is also possible to be connected by screw bolts
Mode.
Further, in another embodiment, as depicted in figs. 1 and 2, pilot hole e is offered in the anode pipette tips 1,
Pilot hole e is located at the top of negative electrode 5.It is easy to the assembling of nozzle 6, and is easy to the installation and dismounting of negative electrode 5, is easy to negative electrode
5 replacing.
Further optimization based on the present embodiment, in another embodiment, as shown in Figure 1 to Figure 3, the anode cooling
Water access way includes anode intake tunnel b1 and anode exhalant canal b4, and the end of anode pipette tips 1 is provided with water cooling chamber b3,
The anode intake tunnel b1, waterway b2, water cooling chamber b3 are sequentially connected in series with anode exhalant canal b4 and connected.Water cooling chamber b3's sets
Meter, can further improve the radiating effect of anode pipette tips 1.Because nozzle 6 and plasma arc are closest, therefore plasma spray
The heat radiation that nozzle 6 is subject in welding gun at most, also needs most protection, therefore cooling water first passes through waterway b2 design, is conducive to
The radiating of nozzle 6.Specifically, anode pipette tips 1 open up cavity close to the end face of nozzle 6, by organizing welding cap plate in anode pipette tips 1
11 by cavities seals, to form water cooling chamber b3；The design structure is simple, it is easy to accomplish, greatly reduce water cooling chamber b3 system
Make difficulty, while also allowing for the processing of anode cooling water access way.
Further optimization based on the present embodiment, in another embodiment, as depicted in figs. 1 and 2, the nozzle 6 is wrapped
Plasma nozzle 61, and the powder feeding gas jets 62 positioned at the outside of plasma nozzle 61 are included, the waterway b2 is located at anode pipette tips 1
Between plasma nozzle 61, nozzle ion-gas passage d2 is located in plasma nozzle 61, and nozzle powder feeding gas passage c3 is located at powder feeding
In gas jets 62.The split design of nozzle 6, is easy to the manufacture and assembly of nozzle 6, is especially easy for the dress of plasma nozzle 61
Match somebody with somebody.
Further, in another embodiment, the plasma nozzle 61 is connected with anode pipette tips 1 by welding manner,
The powder feeding gas jets 62 are connected with anode pipette tips 1 by screw thread or welding manner.Plasma nozzle 61 and the weldering of anode pipette tips 1
Connect in succession, it is ensured that waterway b2 is sealed, water-tight.
Combination Design based on above-described embodiment and pilot hole, as shown in figure 1, specifically, 61 groups of plasma nozzle first
Very easily the upper end of plasma nozzle 61 is mutually welded with anode pipette tips 1 loaded in anode pipette tips 1, then by pilot hole e design,
Then the lower end of plasma nozzle 61 is mutually welded with anode pipette tips 1, plasma nozzle 61 is welded in anode pipette tips 1 by realization, energy
Enough ensure that waterway b2 is sealed, it is water-tight；Powder feeding gas jets 62 are assemblied in the bottom of anode pipette tips 1 by screw thread or welding manner again
Portion, to complete nozzle 6 being embedded in anode pipette tips 1.
Further optimization based on the present embodiment, in another embodiment, as shown in figure 1, in the anode pipette tips 1 also
Offer powder hybrid chamber c2, the anode pipette tips powder feeding gas passage c1 and pass through powder hybrid chamber c2 and nozzle powder feeding gas passage c3
Connection.The powder hybrid chamber c2 powder being designed with beneficial to welding with the gas for conveying powder is full and uniform mixes, be conducive to
Powder uniformly enters molten bath.
Further optimization based on the present embodiment, in another embodiment, the anode pipette tips 1 use diameter≤26mm
Red copper bar be made.Make the welding of the deep endoporus of the workpiece that can be applied to diameter ＜ 36mm of the present invention.Specifically, anode rifle
First 1 can be made of a diameter of 12mm red copper bars, can meet the inside built-up welding demand that diameter of bore is 22mm workpiece.Certainly
Can be using 18mm, 24mm or the red copper bar of other specifications, to meet the inner hole of workpiece demand of different size.If inner hole of workpiece is straight
During footpath >=36mm, then anode pipette tips 1 can be equally made of the red copper bar of larger specification on demand, and the present invention similarly can
It is enough to be applicable.
In summary, using a kind of small Hole plasma welding rifle of the miniature depth of full water cooling type of the present invention, compact conformation is closed
Reason, it is practical, the anode of plasma spray welding gun and negative electrode can direct water-cooling, good heat dissipation effect can realize plasma spray
Welding gun long-time continuous sequence under high temperature operating conditions, usually can be once so as to reduce the joint quantity of overlay cladding
Property completes inner hole of workpiece surfacing, it is ensured that welding quality.
A kind of small Hole plasma welding rifle of the miniature depth of full water cooling type of the present invention, has filled up the micro- of diameter of bore ＜ 36mm
The blank of full water cooling plasma spray welding gun used by the plasma spray of small interior deep hole.The present invention is in hot environment（Such as temperature≤
500℃）Under depth small endoporus surfacing when anode, negative electrode good heat dissipation effect, and can realize continuous for a long time in small endoporus
Welding, can carry out powder plasma surfacing for deep diameter of bore ＜ 36mm component inner surface, can be used for cylindrical, oblique
The powder plasma surfacing of the complex surfaces such as face, can also be used for wire feed bead welding in hot environment.The plasma spray welding gun can
For component surface surfacing or built-up welding corrosion-resistant alloy layer, it can also be used for the complexity such as steam turbine and gas turbine blades, dividing plate
The accurate reparation of parts.
The invention is not limited in foregoing embodiment.The present invention, which is expanded to, any in this manual to be disclosed
New feature or any new combination, and disclose any new method or process the step of or any new combination.
Claims (10)
1. a kind of small Hole plasma welding rifle of the miniature depth of full water cooling type, it is characterised in that：Including anode pipette tips（1）, and inlay
In anode pipette tips（1）Interior negative electrode pipette tips（3）With nozzle（6）, the anode pipette tips（1）With negative electrode pipette tips（3）Between be provided with absolutely
Edge set（2）, the anode pipette tips（1）With nozzle（6）Between have waterway（b2）, and anode pipette tips（1）Inside offer and water-cooled
Chamber（b2）The anode cooling water access way of connection, the anode pipette tips（1）And nozzle（6）Inside offer respectively interconnected
Anode pipette tips powder feeding gas passage（c1）With nozzle powder feeding gas passage（c3）, it is further opened with interconnected anode pipette tips ion-gas and leads to
Road（d1）With nozzle ion-gas passage（d2）.
2. a kind of small Hole plasma welding rifle of the miniature depth of full water cooling type according to claim 1, it is characterised in that：It is described
Negative electrode pipette tips（3）Inside it is set with negative electrode water pipe（31）, and negative electrode water pipe（31）With negative electrode pipette tips（3）Between have gap, the gap
With negative electrode water pipe（31）Inner chamber connect to form cooled cathode water access way.
3. a kind of small Hole plasma welding rifle of the miniature depth of full water cooling type according to claim 1, it is characterised in that：It is described
Negative electrode pipette tips（3）On be equipped with negative electrode（5）, and negative electrode（5）Nozzle ion-gas passage is inserted in one end（d2）It is interior.
4. a kind of small Hole plasma welding rifle of the miniature depth of full water cooling type according to claim 3, it is characterised in that：It is described
Negative electrode（5）On be set with electrode tip holder（4）, negative electrode（5）Pass through electrode tip holder（4）It is assemblied in negative electrode pipette tips（3）On.
5. a kind of small Hole plasma welding rifle of the miniature depth of full water cooling type according to claim 3, it is characterised in that：It is described
Anode pipette tips（1）On offer pilot hole（e）, pilot hole（e）Positioned at negative electrode（5）Top.
6. a kind of small Hole plasma welding rifle of the miniature depth of full water cooling type according to claim 1, it is characterised in that：It is described
Anode cooling water access way includes anode intake tunnel（b1）With anode exhalant canal（b4）, the anode pipette tips（1）End
It is provided with water cooling chamber（b3）, the anode intake tunnel（b1）, waterway（b2）, water cooling chamber（b3）With anode exhalant canal（b4）
It is sequentially connected in series connection.
7. a kind of small Hole plasma welding rifle of the miniature depth of full water cooling type according to claim 1, it is characterised in that：It is described
Nozzle（6）Including plasma nozzle（61）, and positioned at plasma nozzle（61）The powder feeding gas jets in outside（62）, the waterway
（b2）Positioned at anode pipette tips（1）With plasma nozzle（61）Between, nozzle ion-gas passage（d2）Positioned at plasma nozzle（61）It is interior,
Nozzle powder feeding gas passage（c3）Positioned at powder feeding gas jets（62）It is interior.
8. a kind of small Hole plasma welding rifle of the miniature depth of full water cooling type according to claim 7, it is characterised in that：It is described
Plasma nozzle（61）With anode pipette tips（1）Connected by welding manner, the powder feeding gas jets（62）With anode pipette tips（1）It is logical
Cross screw thread or welding manner connection.
9. a kind of small Hole plasma welding rifle of the miniature depth of full water cooling type according to claim 1, it is characterised in that：It is described
Anode pipette tips（1）Inside it is further opened with powder hybrid chamber（c2）, the anode pipette tips powder feeding gas passage（c1）Pass through powder hybrid chamber
（c2）With nozzle powder feeding gas passage（c3）Connection.
10. a kind of small Hole plasma welding rifle of the miniature depth of full water cooling type according to claim 1, it is characterised in that：Institute
State anode pipette tips（1）It is made of diameter≤26mm red copper bar.
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| CN201710366212.5A CN106944728B (en) | 2017-05-23 | 2017-05-23 | A kind of small Hole plasma welding rifle of the miniature depth of full water cooling type |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109382573A (en) * | 2017-08-10 | 2019-02-26 | 武汉华材表面科技有限公司 | Plasma beam pipette tips suitable for the processing of small-sized bore area |
| CN114633004A (en) * | 2022-02-14 | 2022-06-17 | 华南理工大学 | Powder feeding type circulating cooling nozzle and K-TIG (tungsten inert gas) special welding gun |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109382573A (en) * | 2017-08-10 | 2019-02-26 | 武汉华材表面科技有限公司 | Plasma beam pipette tips suitable for the processing of small-sized bore area |
| CN114633004A (en) * | 2022-02-14 | 2022-06-17 | 华南理工大学 | Powder feeding type circulating cooling nozzle and K-TIG (tungsten inert gas) special welding gun |
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| CN106944728B (en) | 2019-07-02 |
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