CN106001879A - Gun body structure of plasma surfacing welding gun - Google Patents
Gun body structure of plasma surfacing welding gun Download PDFInfo
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- CN106001879A CN106001879A CN201610487613.1A CN201610487613A CN106001879A CN 106001879 A CN106001879 A CN 106001879A CN 201610487613 A CN201610487613 A CN 201610487613A CN 106001879 A CN106001879 A CN 106001879A
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- gun body
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- gun
- lance
- gas passage
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- 238000003466 welding Methods 0.000 title claims abstract description 58
- 239000000843 powder Substances 0.000 claims abstract description 43
- 239000000498 cooling water Substances 0.000 claims abstract description 27
- 108091006146 Channels Proteins 0.000 claims description 31
- 239000012212 insulator Substances 0.000 claims description 25
- 230000001681 protective effect Effects 0.000 claims description 17
- 235000013312 flour Nutrition 0.000 claims description 9
- 238000009434 installation Methods 0.000 claims description 5
- 230000008676 import Effects 0.000 claims description 4
- 102000010637 Aquaporins Human genes 0.000 claims description 2
- 108010063290 Aquaporins Proteins 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000011148 porous material Substances 0.000 description 17
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 6
- 229910052721 tungsten Inorganic materials 0.000 description 6
- 239000010937 tungsten Substances 0.000 description 6
- 239000000956 alloy Substances 0.000 description 4
- 229910045601 alloy Inorganic materials 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 206010030113 Oedema Diseases 0.000 description 1
- 238000013475 authorization Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000035935 pregnancy Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K10/00—Welding or cutting by means of a plasma
- 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)
- Arc Welding In General (AREA)
Abstract
The invention provides a gun body structure of a plasma surfacing welding gun and belongs to the technical field of plasma surfacing welding. According to the gun body structure of the plasma surfacing welding gun, the technical problems that the prior welding gun is low in surfacing welding accuracy and bad in surfacing welding effect can be solved. The the gun body structure of the plasma surfacing welding gun comprises a gun body which is arranged axially, a plasma gas channel which is located at the center of the gun body, a protecting gas channel, a cooling water channel and a powder channel. The plasma gas channel penetrates into the gun body from the outer surface of the gun body and penetrates out of the gun body from the front end of the gun body; the cooling water channel penetrates into the gun body from the the outer surface of the gun body, passes the front end of the gun body and penetrates out of the gun body from the outer surface of the gun body; the powder channel penetrates into the gun body from the rear end of the gun body and penetrates out of the gun body from the front end of the gun body. The the gun body structure of the plasma surfacing welding gun is small in whole volume, simple and compact in structure and low in production cost; meanwhile, the plasma gas channel, the protecting gas channel, the cooling water channel and the powder channel are distributed on the gun body uniformly, so that the interior structure of the gun body is optimized and the surfacing welding accuracy of the welding gun is improved.
Description
Technical field
The invention belongs to plasma surfacing technical field, relate to a kind of plasma build-up welding gun
Lance body structure.
Background technology
Plasma arc powder surfacing is to produce using plasma arc as thermal source, application plasma arc
High temperature alloy powder is heated rapidly with matrix surface and together with melt, mix, spread,
Solidification, beam-plasma leaves rear self-excitation cooling, forms one layer of high performance alloy-layer, from
And realize piece surface strengthening with hardening bead-welding technology, its be widely used in oil,
The industries such as chemical industry, engineering machinery, mining machinery.
Plasma build-up welding gun is equipment conventional in plasma surfacing technology, traditional grade from
Subarc welding gun, such as Authorization Notice No. be CN 203484793 U utility model disclosed in one
Planting novel little endoporus plasma arc powder surfacing rifle, it includes upper cutting gun, insulator, lower gun body,
Three parts are cast as one by lengthening die casting gun body parcel, and it is gentle that the lower end of lower gun body is provided with nozzle
Body protective cover；Tungsten electrode is fastened by tungsten electrode clamp lock, runs through lower gun body；It is provided with in lower gun body
Water-cooling channel, annular powder passage, ring-like gas passage arrange the most from inside to outside；Lower gun body
Upper parallel is provided with tube cell passage, intake tunnel, exhalant canal and gas passage；This weldering
Although rifle structure can realize the plasma arc powder surfacing of little endoporus, but there is techniques below simultaneously
Problem, 1, the overall volume of welding gun relatively big, structure loosely, on the one hand adds cost,
On the other hand the built-up welding precision of welding gun is reduced；2, its cooling-water duct is positioned at lower gun body
Periphery, does not extends at nozzle, cannot effectively lower the temperature nozzle when causing its work,
It is easily caused nozzle temperature too high, thus affects the built-up welding effect of welding gun.
In sum, in order to solve the technical problem that above-mentioned welding gun exists, need to design one
Plant the lance body structure of the plasma build-up welding gun that built-up welding precision is high and built-up welding is effective.
Summary of the invention
It is an object of the invention to the problems referred to above existed for prior art, it is proposed that a kind of
The lance body structure of the plasma build-up welding gun that built-up welding precision is high and built-up welding is effective.
The purpose of the present invention can be realized by following technical proposal: a kind of plasma surfacing
The lance body structure of welding gun, including
Gun body, it is axially arranged；
Plasma (orifice) gas passage, wears in it is penetrated gun body by gun body outer surface and by gun body front end
Going out, described plasma (orifice) gas passage is positioned at gun body center；
Protecting gas passage, it is penetrated gun body by gun body outer surface and is passed by gun body front end,
Described protection gas passage has two and is positioned at plasma (orifice) gas passage both sides；
Cooling-water duct, in it is penetrated gun body by gun body outer surface and behind gun body front end
Passed by gun body outer surface；
Powder channel, it is penetrated by gun body rear end and is passed by gun body front end, powder channel
There are two and are positioned at plasma (orifice) gas passage both sides.
In the lance body structure of above-mentioned a kind of plasma build-up welding gun, described gun body includes
Rear lance, plasma (orifice) gas passage, protection gas passage, cooling-water duct import equal
Being positioned on rear lance outer surface, the import of powder channel is positioned on the rear end face of rear lance；
Front gun body, it is connected with rear lance, plasma (orifice) gas passage, protection gas passage and powder
End passage both passes through front gun body, and the outlet of cooling-water duct is positioned on front gun body outer surface；
Nozzle, it is connected with front gun body, and described plasma (orifice) gas passage runs through nozzle, described
Cooling-water duct extends in nozzle, and powder channel runs through the outlet of nozzle and powder channel
Being positioned at plasma (orifice) gas channel outlet both sides, the outlet of described protection gas passage is positioned at plasma
Gas channel outlet is peripheral.
In the lance body structure of above-mentioned a kind of plasma build-up welding gun, outside described rear lance
Surface offers the first air inlet, is provided centrally with running through the of front gun body at front gun body
One gas port, is provided centrally with running through the first venthole of nozzle at nozzle, and described
One air inlet, the first gas port and the first venthole three communicate and formed described etc. from
Edema of the legs during pregnancy passage.
In the lance body structure of above-mentioned a kind of plasma build-up welding gun, outside described rear lance
Surface offers two second air inlets, is provided through the two of front gun body on front gun body
Two gas ports, two second gas ports lay respectively at plasma (orifice) gas passage both sides, described protection
Cover and separate and be formed with the chamber of giving vent to anger connecting outside with nozzle, described second air inlet,
Second gas port, the chamber three that gives vent to anger connect and formed described in protection gas passage.
In the lance body structure of above-mentioned a kind of plasma build-up welding gun, outside described rear lance
Surface offers inlet opening, and the periphery being positioned at plasma channel in front gun body is provided with
One annular compartment, the periphery being positioned at plasma channel in nozzle offers the second annular chamber
Room, described first annular chamber and the second annular compartment communicate, front gun body appearance
Face offers apopore, and inlet opening, first annular chamber, apopore are sequentially communicated and shape
Cooling-water duct described in one-tenth.
In the lance body structure of above-mentioned a kind of plasma build-up welding gun, described rear lance sets
It is equipped with two powder entering holes running through rear lance, described front gun body is provided with two and runs through front gun body
Powder-guiding hole, described nozzle is tiltedly installed with two flour openings running through nozzle, described in go out
Powder hole is positioned at plasma channel both sides and intersects with the outlet of plasma channel, described in enter powder
Hole, powder-guiding hole, flour opening communicates and three forms described powder channel.
In the lance body structure of above-mentioned a kind of plasma build-up welding gun, at the middle part of rear lance
It is provided through the installing hole of rear lance, is provided with installation set in described installing hole, installs
The outer surface of set is provided with two blocks and block is against on installing hole inwall, described two blocks
Between be formed with guiding gutter and guiding gutter communicates with inlet opening and first annular chamber respectively.
In the lance body structure of above-mentioned a kind of plasma build-up welding gun, described gun body also includes
Protective cover, described protective cover cover on front gun body and and nozzle between form described protection gas
The outlet of passage.
In the lance body structure of above-mentioned a kind of plasma build-up welding gun, described gun body also includes
Insulator, described insulator is connected between rear lance and front gun body and with the two, institute
State plasma (orifice) gas passage, protection gas passage, cooling-water duct, powder channel all by absolutely
Edge body.
In the lance body structure of above-mentioned a kind of plasma build-up welding gun, described rear lance, absolutely
Edge body, front gun body are connected by bolt with nozzle, and described protective cover is with front gun body screw thread even
Connect.
Compared with prior art, the method have the advantages that
1, in the present invention, welding gun gun body is axially arranged cylindrical shape, its overall volume
Less, simple in construction and compact, its production cost is less, meanwhile, plasma (orifice) gas passage,
Protection gas passage, cooling-water duct and powder channel are evenly distributed in gun body, and it is excellent
Change the internal structure of gun body, add the built-up welding precision of welding gun.
2, the cooling-water duct of this gun body is stretched into gun body inside by the outer surface of gun body and extends
To the front end of gun body, therefore, the cooling water in cooling-water duct can include nozzle to gun body
Effectively lower the temperature at interior whole fore-end, effectively avoid gun body front end temperature
Spend height, thus ensure that welding gun has preferable built-up welding effect.
Accompanying drawing explanation
Fig. 1 is the perspective view of the present invention.
Fig. 2 is the top view of the present invention.
Fig. 3 is the side view of the present invention.
Fig. 4 is A-A sectional view in Fig. 2.
Fig. 5 is the sectional view of B-B in Fig. 2.
Fig. 6 is the sectional view of C-C in Fig. 2.
Fig. 7 is the sectional view of D-D in Fig. 2.
Fig. 8 is the sectional view of E-E in Fig. 2.
Fig. 9 is the sectional view of F-F in Fig. 2.
Figure 10 is the sectional view of G-G in Fig. 3.
In figure, 100, gun body；110, rear lance；111, the first air inlet；112、
Second air inlet；113, inlet opening；114, powder entering hole；115, installing hole；116、
Set is installed；116a, block；116b, guiding gutter；117, diversion gap；120, exhausted
Edge body；121, the first intercommunicating pore；122, passage；123, the second intercommunicating pore；124、
Third connecting hole；125, the 4th intercommunicating pore；130, front gun body；131, the first gas port；
132, the second gas port；133, first annular chamber；134, apopore；135, lead
Powder hole；140, nozzle；141, the first venthole；142, the second annular compartment；143、
Flour opening；150, protective cover；151, give vent to anger chamber；152, annular air outlet.
Detailed description of the invention
The following is the specific embodiment of the present invention and combine accompanying drawing, the technical side to the present invention
Case is further described, but the present invention is not limited to these embodiments.
As shown in Figures 1 to 10, the gun body 100 of a kind of plasma build-up welding gun of the present invention
Structure, it is a part for plasma surfacing equipment, and it includes gun body 100 and arranges
Plasma channel, protection gas passage, cooling-water duct and powder in gun body 100
Passage.
Gun body 100 is axially arranged, and it is similar to cylinder, and described gun body 100 includes successively
Rear lance 110, insulator 120, front gun body 130, nozzle 140 and the protection being connected
Cover 150.
Described rear lance 110, insulator 120 and front gun body 130 are the most in the form of annular discs,
Described nozzle 140 in frustum, described rear lance 110, insulator 120, front gun body
130 are connected by bolt with nozzle 140, and described protective cover 150 covers on front gun body 130
Go up and nozzle 140 is between protective cover 150 and front gun body 130, described protective cover 150
Threaded with front gun body 130.
As shown in Figure 1, Figure 2, Figure 4 shows, the upper end outer surface at rear lance 110 offers
Leading to the first air inlet 111 within rear lance 110, this first air inlet 111 enters
There is bending after in rear lance 110 and to lead to rear lance 110 adjacent with insulator 120
Surface.
The first intercommunicating pore communicated with the first air inlet 111 is offered on insulator 120
121, this first intercommunicating pore 121, in bending, is axially opened in the center of insulator 120
Be provided with the passage 122 running through insulator 120, described first intercommunicating pore 121 respectively with
First air inlet 111 connects with passage 122.
The center of front gun body 130 axially offers before connecting with passage 122 and run through
First gas port 131 of gun body 130.
The first venthole running through nozzle 140 is axially offered in the center of nozzle 140
141, described first air inlet the 111, first intercommunicating pore 121, passage 122, first
Gas port the 131, first venthole 141 communicates and is formed described plasma (orifice) gas passage,
This plasma (orifice) gas passage is used for carrying plasma (orifice) gas.
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 5, Fig. 6, Fig. 7, Figure 10, figure is rear
The upper end outer surface of gun body 110 offers two second air inlets led within rear lance 110
Hole 112, two second air inlets 112 lay respectively at the both sides of the first air inlet 111, its
In one second air inlet 112 be passed through the inner upper end of rear lance 110, another second air inlet
Hole 112 is passed through the interior lower end of rear lance 110.
The inside upper and lower side of insulator 120 offers respectively and axially penetrates through insulator 120
Two second intercommunicating pores 123, two second described intercommunicating pores 123 lay respectively at passage 122
Both sides, be positioned at the second intercommunicating pore 123 of insulator 120 upper end with on rear lance 110
Second air inlet 112 of end communicates, and is positioned at the second intercommunicating pore 123 of insulator 120 lower end
Communicate with the second air inlet 112 of rear lance 110 lower end.
The inside upper and lower side of front gun body 130 offers the most accordingly and runs through front gun body 130
Two second gas ports 132, two second gas ports 132 lay respectively at the first gas port 131
Both sides.
Protective cover 150 and nozzle 140 separate and are formed with chamber 151 of giving vent to anger, protective cover
150 maintain an equal level with the front end of nozzle 140 and are formed with annular air outlet 152, and this annular is given vent to anger
Mouthfuls 152 use gas chamber 151 communicates with outside, described in give vent to anger chamber 151 and two second
Gas port 132 communicates, and described second air inlet the 112, second intercommunicating pore 123, second leads
Pore 132, chamber 151 of giving vent to anger are sequentially communicated and are formed described protection gas passage, protect
Protect gas passage protective gas when transportation work.
As shown in Figure 1, Figure 2, shown in Fig. 8, the upper end outer surface at rear lance 110 is also offered
Having the inlet opening 113 being passed through within rear lance 110, this inlet opening 113 is located therein
Between one air inlet 111 and the second air inlet 112.
Insulator 120 axially offers the third connecting hole running through insulator 120
124, described third connecting hole 124 communicates with inlet opening 113.
The periphery being positioned at the first gas port 131 in front gun body 130 is provided with first annular
Chamber 133, described third connecting hole 124 connects with the lower end of first annular chamber 133,
The upper end outer surface of front gun body 130 offers to be passed through front gun body 130 internal and with the
The apopore 134 of one annular compartment 133 upper end connection.
The end face that nozzle 140 is adjacent with front gun body 130 offers the second annular compartment
142, this tapered setting of the second annular compartment 142 and being positioned at outside the first venthole 141
Enclosing, described first annular chamber 133 communicates with the second annular compartment 142, described water inlet
Hole 113, first annular chamber the 133, second annular compartment 142 communicate and are formed described
Cooling-water duct, this cooling-water duct is used for carrying cooling water, makes whole gun body 100 exist
Effective temperature-reducing is obtained, it is to avoid gun body 100 temperature is too high during work.
As shown in Figure 1, Figure 10 shows, the rear end face on rear lance 110 axially offers two
Running through the powder entering hole 114 of rear lance 110, two powder entering holes 114 are positioned at installing hole 115
Both sides.
Insulator 120 is positioned at the both sides of passage 122 the most axially offer and run through
4th intercommunicating pore 125 of insulator 120, two the 4th intercommunicating pores 125 enter powder with two respectively
Hole 114 connects.
In front gun body 130, it is positioned at the both sides of the first gas port 131 offer respectively and run through
The powder-guiding hole 135 of front gun body 130, two powder-guiding holes 135 respectively with two the 4th intercommunicating pores 125
Connection.
Nozzle 140 tilts to offer two flour openings 143 running through nozzle 140, institute
State flour opening 143 be positioned at the first venthole 141 both sides and with the going out of the first venthole 141
Mouthful in intersection, described powder entering hole the 114, the 4th intercommunicating pore 125, powder-guiding hole 135,
Flour opening 143 is sequentially communicated and is formed described powder channel, and this powder channel is for defeated
Send alloy powder, provide the raw metal needed for built-up welding for whole welding gun.
During work, it is passed through cooling water at cooling-water duct, leads in protection gas passage successively
Enter protective gas, in plasma (orifice) gas passage, be passed through plasma gas, in powder channel
It is passed through alloy powder, to complete the preparation before gun body 100 uses.
As shown in Figure 8, the center at rear lance 110 is further opened with running through rear lance 110
Installing hole 115, this installing hole 115 and the passage 122 being positioned on insulator 120
Communicate, be provided with in installing hole 115 in axially extended installation set 116, this installation
Overlapping 116 inner hollow, the outer surface installing set 116 is convexly equipped with two block 116a and blocks
116a is against on installing hole 115 inwall, in described two block 116a and installing hole 115
Being formed with guiding gutter 116b between wall, this inlet opening 113 communicates with guiding gutter 116b,
The diversion gap communicated with guiding gutter 116b is offered in the bottom interior wall of installing hole 115
117, this diversion gap 117 communicates with third connecting hole 124.
Under normal circumstances, need tungsten electrode is installed in the gun body 100 of plasma gun, because of
This, in this gun body 100 structure, by arranging in the installing hole 115 of rear lance 110
Set 116, the convenient tungsten electrode seat installed tungsten electrode and be used for fixing tungsten electrode are installed.
Meanwhile, in this gun body 100 structure, the inner upper end of rear lance 110 offers
First air inlet the 111, second air inlet 112, the inner upper end of front gun body 130 is offered
Having the second gas port 132, the passage causing whole gun body 100 inner upper end is many and intensive,
In order to avoid each passage concentrates on gun body 100 inner upper end, special by insulator 120 with
The third connecting hole 124 of first annular chamber 133 connection is arranged on the interior of insulator 120
Subordinate's end, after offering diversion gap 117 in installing hole 115, inlet opening 113 is passed through
Guiding gutter 116b can communicate with third connecting hole 124 with diversion gap 117, cold to be formed
But aquaporin, thus avoid multiple passage to concentrate on whole gun body 100 inner upper end, make
Each passage is more evenly distributed inside gun body 100.
The operation principle of the present invention is as follows:
First in cooling-water duct, it is passed through cooling water, when providing work for whole gun body 100
Low temperature environment.
In protection gas passage, it is passed through protective gas whole gun body 100 is carried out gas guarantor
Protect, then in plasma (orifice) gas passage, be passed through plasma gas, make at whole gun body 100
The gas preparatory stage before striking.
In powder channel, it is passed through alloy powder, finally opens the power supply of gun body 100, make
Form electrode in gun body 100, finally open striking switch, before then completing welding gun built-up welding
Preparation.
Specific embodiment described herein is only to present invention spirit theory for example
Bright.Those skilled in the art can be to described specific embodiment
Make various amendment or supplement or use similar mode to substitute, but without departing from
The spirit of the present invention or surmount scope defined in appended claims.
Claims (10)
1. a lance body structure for plasma build-up welding gun, including
Gun body, it is axially arranged；
Plasma (orifice) gas passage, wears in it is penetrated gun body by gun body outer surface and by gun body front end
Going out, described plasma (orifice) gas passage is positioned at gun body center；
Protecting gas passage, it is penetrated gun body by gun body outer surface and is passed by gun body front end,
Described protection gas passage has two and is positioned at plasma (orifice) gas passage both sides；
Cooling-water duct, in it is penetrated gun body by gun body outer surface and behind gun body front end
Passed by gun body outer surface；
Powder channel, it is penetrated by gun body rear end and is passed by gun body front end, powder channel
There are two and are positioned at plasma (orifice) gas passage both sides.
The lance body structure of a kind of plasma build-up welding gun the most according to claim 1,
It is characterized in that: described gun body includes
Rear lance, plasma (orifice) gas passage, protection gas passage, cooling-water duct import equal
Being positioned on rear lance outer surface, the import of powder channel is positioned on the rear end face of rear lance；
Front gun body, it is connected with rear lance, plasma (orifice) gas passage, protection gas passage and powder
End passage both passes through front gun body, and the outlet of cooling-water duct is positioned on front gun body outer surface；
Nozzle, it is connected with front gun body, and described plasma (orifice) gas passage runs through nozzle, described
Cooling-water duct extends in nozzle, and powder channel runs through the outlet of nozzle and powder channel
Being positioned at plasma (orifice) gas channel outlet both sides, the outlet of described protection gas passage is positioned at plasma
Gas channel outlet is peripheral.
The lance body structure of a kind of plasma build-up welding gun the most according to claim 2,
It is characterized in that: the outer surface of described rear lance offers the first air inlet, at front gun body
Be provided centrally with running through the first gas port of front gun body, nozzle be provided centrally with pass through
Wearing the first venthole of nozzle, described first air inlet, the first gas port and first are given vent to anger
Hole three communicates and is formed described plasma (orifice) gas passage.
The lance body structure of a kind of plasma build-up welding gun the most according to claim 2,
It is characterized in that: the outer surface of described rear lance offers two second air inlets, at front rifle
Being provided through two second gas ports of front gun body on body, two second gas ports lay respectively at
Plasma (orifice) gas passage both sides, described protective cover separate with nozzle and be formed connect outside
Giving vent to anger chamber, described second air inlet, the second gas port, the chamber three that gives vent to anger connect also
Protection gas passage described in formation.
The lance body structure of a kind of plasma build-up welding gun the most according to claim 2,
It is characterized in that: the outer surface of described rear lance offers inlet opening, position in front gun body
The periphery of plasma channel is provided with first annular chamber, in nozzle, is positioned at plasma
The periphery of passage offers the second annular compartment, described first annular chamber and the second annular
Chamber communicates, front gun body outer surface offer apopore, inlet opening, the first ring
Shape chamber, apopore are sequentially communicated and are formed described cooling-water duct.
The lance body structure of a kind of plasma build-up welding gun the most according to claim 2,
It is characterized in that: on described rear lance, be provided with two powder entering holes running through rear lance, described
It is provided with two powder-guiding holes running through front gun body on front gun body, described nozzle is tiltedly installed with
Two flour openings running through nozzle, described flour opening be positioned at plasma channel both sides and with etc. from
The outlet of subchannel is intersected, and described powder entering hole, powder-guiding hole, flour opening communicate and three's shape
Powder channel described in one-tenth.
The lance body structure of a kind of plasma build-up welding gun the most according to claim 5,
It is characterized in that: be provided through the installing hole of rear lance at the middle part of rear lance, described
Being provided with installation set in installing hole, the outer surface of installation set is provided with two blocks and block supports
On installing hole inwall, be formed between described two blocks guiding gutter and guiding gutter respectively with enter
Water hole and first annular chamber communicate.
The lance body structure of a kind of plasma build-up welding gun the most according to claim 2,
It is characterized in that: described gun body also includes that protective cover, described protective cover cover at front gun body
The upper outlet also and forming described protection gas passage between nozzle.
The lance body structure of a kind of plasma build-up welding gun the most according to claim 8,
It is characterized in that: described gun body also include insulator, described insulator be positioned at rear lance with
It is connected between front gun body and with the two, described plasma (orifice) gas passage, protection gas passage, cold
But aquaporin, powder channel all pass through insulator.
The lance body structure of a kind of plasma build-up welding gun the most according to claim 9,
It is characterized in that: described rear lance, insulator, front gun body are connected by bolt with nozzle,
Described protective cover is threadeded with front gun body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610487613.1A CN106001879B (en) | 2016-06-24 | 2016-06-24 | A kind of lance body structure of plasma build-up welding gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610487613.1A CN106001879B (en) | 2016-06-24 | 2016-06-24 | A kind of lance body structure of plasma build-up welding gun |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106001879A true CN106001879A (en) | 2016-10-12 |
| CN106001879B CN106001879B (en) | 2019-03-22 |
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| CN201610487613.1A Expired - Fee Related CN106001879B (en) | 2016-06-24 | 2016-06-24 | A kind of lance body structure of plasma build-up welding gun |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110315178A (en) * | 2019-07-03 | 2019-10-11 | 阳江市高功率激光应用实验室有限公司 | Welding gun structure and cladding system with the welding gun structure |
| CN110587086A (en) * | 2019-10-15 | 2019-12-20 | 宁夏吴忠市好运电焊机有限公司 | Plasma powder surfacing device capable of fully utilizing alloy powder |
| CN113909646A (en) * | 2021-11-03 | 2022-01-11 | 北京石油化工学院 | Coaxial powder feeding TIG welding device and application thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110315178A (en) * | 2019-07-03 | 2019-10-11 | 阳江市高功率激光应用实验室有限公司 | Welding gun structure and cladding system with the welding gun structure |
| WO2021000449A1 (en) * | 2019-07-03 | 2021-01-07 | 阳江市高功率激光应用实验室有限公司 | Welding head structure and cladding system having welding head structure |
| CN110587086A (en) * | 2019-10-15 | 2019-12-20 | 宁夏吴忠市好运电焊机有限公司 | Plasma powder surfacing device capable of fully utilizing alloy powder |
| CN110587086B (en) * | 2019-10-15 | 2021-09-28 | 宁夏吴忠市好运电焊机有限公司 | Plasma powder surfacing device capable of fully utilizing alloy powder |
| CN113909646A (en) * | 2021-11-03 | 2022-01-11 | 北京石油化工学院 | Coaxial powder feeding TIG welding device and application thereof |
| CN113909646B (en) * | 2021-11-03 | 2023-03-10 | 北京石油化工学院 | Coaxial powder feeding TIG welding device and application thereof |
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|---|---|
| CN106001879B (en) | 2019-03-22 |
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