CN106001879B - A kind of lance body structure of plasma build-up welding gun - Google Patents
A kind of lance body structure of plasma build-up welding gun Download PDFInfo
- Publication number
- CN106001879B CN106001879B CN201610487613.1A CN201610487613A CN106001879B CN 106001879 B CN106001879 B CN 106001879B CN 201610487613 A CN201610487613 A CN 201610487613A CN 106001879 B CN106001879 B CN 106001879B
- Authority
- CN
- China
- Prior art keywords
- gun body
- plasma
- lance
- channel
- nozzle
- 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.)
- Active
Links
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
Abstract
The present invention provides a kind of lance body structures of plasma build-up welding gun, belong to plasma surfacing technical field；It solves that existing welding gun built-up welding precision is low and the technical problem of built-up welding effect difference；A kind of lance body structure of plasma build-up welding gun, including gun body, it is axial to be arranged；Plasma (orifice) gas channel is penetrated in gun body by gun body outer surface and is pierced by by gun body front end, and plasma (orifice) gas channel is located at gun body center；Gas channel is protected, gun body is penetrated by gun body outer surface and is pierced by by gun body front end；Cooling-water duct is penetrated in gun body by gun body outer surface and is pierced by by gun body outer surface behind gun body front end；Powder channel is penetrated by gun body rear end and is pierced by by gun body front end；Overall volume is smaller, and structure is simple and compact, and production cost is smaller, meanwhile, plasma (orifice) gas channel, protection gas channel, cooling-water duct and powder channel are evenly distributed in gun body, are optimized the internal structure of gun body, are increased the built-up welding precision of welding gun.
Description
Technical field
The invention belongs to plasma surfacing technical fields, are related to a kind of lance body structure of plasma build-up welding gun.
Background technique
Plasma arc powder surfacing be using plasma arc as heat source, using plasma arc generate high temperature by alloy powder with
Matrix surface is heated rapidly and is melted together, mixes, diffusion, solidifying, and plasma beam leaves rear self-excitation cooling, forms one layer high property
The alloy-layer of energy is widely used in petroleum, chemical industry, engineering to realize the bead-welding technology of the reinforcing and hardening of piece surface
The industries such as machinery, mining machinery.
Plasma build-up welding gun is common equipment in plasma surfacing technology, traditional plasma (welding) torch, such as is awarded
Weigh the novel small inner hole plasma arc powder surfacing rifle of one kind disclosed in the utility model that notification number is 203484793 U of CN comprising
Upper cutting gun, insulator, lower gun body, three parts are cast as one by lengthening die casting gun body package, the lower end of lower gun body be equipped with nozzle and
Gas shield cover；Tungsten electrode is fastened by tungsten electrode clamp lock, runs through upper lower gun body；Be equipped in lower gun body water-cooling channel, annular powder channel,
Ring-like gas passage successively arranges from inside to outside；Lower gun body upper parallel is gentle equipped with tube cell channel, intake tunnel, exhalant canal
Body channel；Although this welding gun structure is able to achieve the plasma arc powder surfacing of small inner hole, but exist simultaneously following technical problem, 1,
The overall volume of welding gun is larger, and structure loosely, on the one hand increases cost, on the other hand reduces the built-up welding precision of welding gun；
2, its cooling-water duct is located at the periphery of lower gun body, does not extend at nozzle, causes not carrying out nozzle when its work effective
Cooling, easily lead to that nozzle temperature is excessively high, to influence the built-up welding effect of welding gun.
In conclusion in order to solve above-mentioned welding gun, need to design that a kind of built-up welding precision is high and built-up welding
The lance body structure of the good plasma build-up welding gun of effect.
Summary of the invention
The purpose of the present invention is in view of the above-mentioned problems existing in the prior art, proposing, a kind of built-up welding precision is high and built-up welding is imitated
The lance body structure of the good plasma build-up welding gun of fruit.
Object of the invention can be realized by the following technical scheme: a kind of lance body structure of plasma build-up welding gun, packet
It includes
Gun body, it is axial to be arranged；
Plasma (orifice) gas channel is penetrated in gun body by gun body outer surface and is pierced by by gun body front end, and the plasma (orifice) gas is logical
Road is located at gun body center；
Gas channel is protected, gun body is penetrated by gun body outer surface and is pierced by by gun body front end, the protection gas channel has two
Item and be located at plasma (orifice) gas channel two sides；
Cooling-water duct is penetrated in gun body by gun body outer surface and is pierced by by gun body outer surface behind gun body front end；
Powder channel is penetrated by gun body rear end and is pierced by by gun body front end, and powder channel has two and is located at plasma
Gas channel two sides.
In a kind of above-mentioned lance body structure of plasma build-up welding gun, the gun body includes
Rear lance, plasma (orifice) gas channel protect the import in gas channel, cooling-water duct to be respectively positioned on rear lance outer surface,
The import of powder channel is located on the rear end face of rear lance；
Front gun body is connected with rear lance, and plasma (orifice) gas channel, protection gas channel and powder channel both pass through front gun body,
The outlet of cooling-water duct is located on front gun body outer surface；
Nozzle is connected with front gun body, and nozzle is run through in the plasma (orifice) gas channel, and the cooling-water duct extends to nozzle
Interior, powder channel is located at plasma (orifice) gas channel outlet two sides through the outlet of nozzle and powder channel, the protection gas channel
Outlet is located at plasma (orifice) gas channel outlet periphery.
In a kind of above-mentioned lance body structure of plasma build-up welding gun, the outer surface of the rear lance offers the first air inlet
Hole is provided centrally with through nozzle in nozzle in the first gas port of front gun body being provided centrally with through front gun body
One venthole, first air inlet, the first gas port, which communicate with the first venthole three and form the plasma (orifice) gas, to be led to
Road.
In a kind of above-mentioned lance body structure of plasma build-up welding gun, the outer surface of the rear lance offer two second into
Stomata is provided with two second gas ports through front gun body on front gun body, and it is logical that two second gas ports are located at plasma (orifice) gas
Road two sides, the protective cover, which is separated and is formed with nozzle, is connected to external outlet chamber, second air inlet, the second air guide
Hole, outlet chamber three are connected to and form the protection gas channel.
In a kind of above-mentioned lance body structure of plasma build-up welding gun, the outer surface of the rear lance offers inlet opening,
Periphery in front gun body positioned at plasma channel is provided with first annular chamber, and the periphery of plasma channel is located in nozzle
The second annular compartment is offered, the first annular chamber is communicated with the second annular compartment, is opened up in the outer surface of front gun body
There is apopore, inlet opening, first annular chamber, apopore are sequentially communicated and form the cooling-water duct.
In a kind of above-mentioned lance body structure of plasma build-up welding gun, two are provided on the rear lance through rear lance
Powder entering hole is provided with two powder-guiding holes for running through front gun body on the front gun body, and two are tiltedly installed on the nozzle through nozzle
Flour opening, the flour opening is located at plasma channel two sides and intersects with the outlet of plasma channel, and the powder entering hole leads powder
Hole, flour opening communicate and three forms the powder channel.
In a kind of above-mentioned lance body structure of plasma build-up welding gun, it is provided in the middle part of rear lance through rear lance
Mounting hole is provided with installation set in the mounting hole, and the outer surface of installation set is provided with two blocks and block is against in mounting hole
On wall, diversion trench is formed between two block and diversion trench is communicated with inlet opening and first annular chamber respectively.
In a kind of above-mentioned lance body structure of plasma build-up welding gun, the gun body further includes protective cover, the protective cover
Cover on front gun body and formed between nozzle the outlet in the protection gas channel.
In a kind of above-mentioned lance body structure of plasma build-up welding gun, the gun body further includes insulator, the insulator
It is connected between rear lance and front gun body and with the two, the plasma (orifice) gas channel, protection gas channel, cooling-water duct, powder
Last channel passes through insulator.
In a kind of above-mentioned lance body structure of plasma build-up welding gun, the rear lance, insulator, front gun body and nozzle are logical
It crosses bolt to be connected, the protective cover is threadedly coupled with front gun body.
Compared with prior art, the invention has the following advantages:
1, in the present invention, welding gun gun body is in the cylindrical shape being axially arranged, and overall volume is smaller, and structure is simple and tight
It gathering, production cost is smaller, meanwhile, plasma (orifice) gas channel, protection gas channel, cooling-water duct and powder channel are uniformly distributed
In gun body, the internal structure of gun body is optimized, increases the built-up welding precision of welding gun.
2, the cooling-water duct of this gun body is protruded into inside gun body by the outer surface of gun body and is extended to the front end of gun body, because
This, the cooling water energy in cooling-water duct effectively cools down to entire front end portion of the gun body including nozzle, effectively
To avoid gun body head temperature excessively high, to ensure that welding gun has preferable built-up welding effect.
Detailed description of the invention
Fig. 1 is schematic perspective view of the invention.
Fig. 2 is top view of the invention.
Fig. 3 is side view of the invention.
Fig. 4 is A-A cross-sectional view in Fig. 2.
Fig. 5 is the cross-sectional view of B-B in Fig. 2.
Fig. 6 is the cross-sectional view of C-C in Fig. 2.
Fig. 7 is the cross-sectional view of D-D in Fig. 2.
Fig. 8 is the cross-sectional view of E-E in Fig. 2.
Fig. 9 is the cross-sectional view of F-F in Fig. 2.
Figure 10 is the cross-sectional view of G-G in Fig. 3.
In figure, 100, gun body；110, rear lance；111, the first air inlet；112, the second air inlet；113, inlet opening；
114, powder entering hole；115, mounting hole；116, installation set；116a, block；116b, diversion trench；117, diversion gap；120, it insulate
Body；121, the first intercommunicating pore；122, venthole；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, powder is led
Hole；140, nozzle；141, the first venthole；142, the second annular compartment；143, flour opening；150, protective cover；151, outlet chamber
Room；152, annular air outlet.
Specific embodiment
Following is a specific embodiment of the present invention in conjunction with the accompanying drawings, technical scheme of the present invention will be further described,
However, the present invention is not limited to these examples.
As shown in Figures 1 to 10, a kind of 100 structure of gun body of plasma build-up welding gun of the present invention, is plasma surfacing
A part of equipment comprising gun body 100 and the plasma channel being set in gun body 100 protect gas channel, cooling water logical
Road and powder channel.
The axial setting of gun body 100, is similar to cylinder, and the gun body 100 includes the rear lance 110 being sequentially connected, insulation
Body 120, front gun body 130, nozzle 140 and protective cover 150.
The rear lance 110, insulator 120 and front gun body 130 are in the form of annular discs, and the nozzle 140 is in pyramidal, institute
It states rear lance 110, insulator 120, front gun body 130 and nozzle 140 to be connected by bolt, the protective cover 150 covers on front gun body
On 130 and nozzle 140 is between protective cover 150 and front gun body 130, and the protective cover 150 is threadedly coupled with front gun body 130.
As shown in Figure 1, Figure 2, Figure 4 shows, led to inside rear lance 110 is offered in the upper end outer surface of rear lance 110
One air inlet 111, first air inlet 111 occur to bend and lead to rear lance 110 and insulator after entering in rear lance 110
120 adjacent surfaces.
The first intercommunicating pore 121 communicated with the first air inlet 111 is offered on insulator 120, which is in
Bending axially offers the venthole 122 through insulator 120, first intercommunicating pore at the center of insulator 120
121 are connected to the first air inlet 111 and venthole 122 respectively.
The first gas port for being connected to venthole 122 and running through front gun body 130 is axially offered at the center of front gun body 130
131。
The first venthole 141 through nozzle 140, first air inlet are axially offered at the center of nozzle 140
111, the first intercommunicating pore 121, venthole 122, the first gas port 131, the first venthole 141 communicate and form the plasma
Gas channel, the plasma (orifice) gas channel is for conveying plasma (orifice) gas.
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 5, Fig. 6, Fig. 7, Figure 10, figure offers logical in the upper end outer surface of rear lance 110
To two second air inlets 112 inside rear lance 110, two second air inlets 112 are located at the two sides of the first air inlet 111,
Wherein one second air inlet 112 is passed through the inner upper end of rear lance 110, and another second air inlet 112 is passed through the interior of rear lance 110
Subordinate end.
The inside upper and lower side of insulator 120 offers two second intercommunicating pores 123 for axially penetrating through insulator 120, institute respectively
Two second intercommunicating pores 123 stated are located at the two sides of venthole 122, positioned at 120 upper end of insulator the second intercommunicating pore 123 with
Second air inlet 112 of 110 upper end of rear lance communicates, the second intercommunicating pore 123 and rear lance 110 positioned at 120 lower end of insulator
Second air inlet 112 of lower end communicates.
The inside upper and lower side of front gun body 130 accordingly offers two second gas ports 132 through front gun body 130 respectively, and two
Second gas port 132 is located at the two sides of the first gas port 131.
Protective cover 150 and nozzle 140 separate and are formed with outlet chamber 151, support before protective cover 150 and nozzle 140
Annular air outlet 152 is equalled and is formed with, which uses gas chamber 151 and communicate with outside, the outlet chamber
151 communicate with two second gas ports 132, second air inlet 112, the second intercommunicating pore 123, the second gas port 132, outlet chamber
Room 151 is sequentially communicated and is formed the protection gas channel, and protection gas channel is used for protective gas when transportation work.
As shown in Figure 1, Figure 2, it shown in Fig. 8, is also provided with and is passed through inside rear lance 110 in the upper end outer surface of rear lance 110
Inlet opening 113, the inlet opening 113 are located therein between the first air inlet 111 and the second air inlet 112.
It is axially offered on insulator 120 through the third connecting hole 124 of insulator 120, the third connecting hole 124
It is communicated with inlet opening 113.
Periphery in front gun body 130 positioned at the first gas port 131 is provided with first annular chamber 133, and the third connects
Through-hole 124 is connected to the lower end of first annular chamber 133, is offered on the upper end outer surface of front gun body 130 and is passed through front gun body
130 inside and the apopore 134 being connected to first annular 133 upper end of chamber.
The second annular compartment 142 is offered on the end face adjacent with front gun body 130 of nozzle 140, second annular compartment
142 tapered settings and the periphery for being located at the first venthole 141, the first annular chamber 133 and 142 phase of the second annular compartment
Logical, the inlet opening 113, first annular chamber 133, the second annular compartment 142 communicate and are formed the cooling-water duct, should
Cooling-water duct makes entire gun body 100 obtain effective temperature-reducing at work, avoids 100 temperature mistake of gun body for conveying cooling water
It is high.
As shown in Figure 1, Figure 10 shows, two powder entering holes for running through rear lance 110 are axially offered on the rear end face on rear lance 110
114, two powder entering holes 114 are located at the two sides of mounting hole 115.
Two sides on insulator 120 positioned at venthole 122 axially offer the 4th connection through insulator 120 respectively
Hole 125, two the 4th intercommunicating pores 125 are connected to two powder entering holes 114 respectively.
Two sides in front gun body 130 positioned at the first gas port 131 offer the powder-guiding hole through front gun body 130 respectively
135, two powder-guiding holes 135 are connected to two the 4th intercommunicating pores 125 respectively.
Inclination offers two flour openings 143 for running through nozzle 140 on nozzle 140, and the flour opening 143 is located at first and goes out
141 two sides of stomata and be in intersection with the outlet of the first venthole 141, the powder entering hole 114 the 4th intercommunicating pore 125, leads powder
Hole 135, flour opening 143 are sequentially communicated and are formed the powder channel, which, for conveying alloy powder, is entire
Raw metal needed for welding gun provides built-up welding.
When work, successively cooling-water duct be passed through cooling water, protection gas channel in be passed through protective gas, in plasma
It is passed through plasma gas in gas channel, is passed through alloy powder in powder channel, to complete the beam worker before 100 use of gun body
Make.
As shown in figure 8, being also provided with the mounting hole 115 through rear lance 110, the installation at the center of rear lance 110
Hole 115 is communicated with the venthole 122 being located on insulator 120, is equipped in mounting hole 115 in axially extending installation set
116,116 inner hollow of installation set, the outer surface of installation set 116 is convexly equipped with two block 116a and block 116a is against mounting hole
On 115 inner walls, it is formed with diversion trench 116b between 115 inner wall of the two blocks 116a and mounting hole, the inlet opening 113 and diversion trench
116b is communicated, and the diversion gap 117 communicated with diversion trench 116b is offered in the bottom interior wall of mounting hole 115, which lacks
Mouth 117 is communicated with third connecting hole 124.
Under normal conditions, it needs that tungsten electrode is installed in the gun body of plasma gun 100, therefore, in 100 structure of this gun body,
By the way that installation set 116 is arranged in the mounting hole 115 of rear lance 110, facilitate installation tungsten electrode and the tungsten electrode for fixing tungsten electrode
Seat.
Meanwhile in 100 structure of this gun body, the inner upper end of rear lance 110 offered the first air inlet 111, second into
Stomata 112, the inner upper end of front gun body 130 have offered the second gas port 132, lead to the logical of entire 100 inner upper end of gun body
Road is more and intensive, in order to avoid each channel concentrates on 100 inner upper end of gun body, it is special by insulator 120 with first annular chamber
The interior lower end of insulator 120 is arranged in the third connecting hole 124 of 133 connections, and diversion gap 117 is opened up in mounting hole 115
Afterwards, inlet opening 113 can be communicated by diversion trench 116b with diversion gap 117 with third connecting hole 124, logical to form cooling water
Road makes each channel be more evenly distributed inside gun body 100 so that multiple channels be avoided to concentrate on entire 100 inner upper end of gun body.
Working principle of the present invention is as follows:
It is first passed through cooling water in cooling-water duct, low temperature environment when work is provided for entire gun body 100.
Protective gas is passed through in protection gas channel, gas shield is carried out to entire gun body 100, then lead to plasma (orifice) gas
It is passed through plasma gas in road, entire gun body 100 is made to be in the gas preparation stage before striking.
It is passed through alloy powder in powder channel, finally opens the power supply of gun body 100, makes to form electrode in gun body 100, most
Striking switch is opened afterwards, then completes the preparation before welding gun built-up welding.
Specific embodiment described herein is only an example for the spirit of the invention.The neck of technology belonging to the present invention
The technical staff in domain can make various modifications or additions to the described embodiments or replace by a similar method
In generation, however, it does not deviate from the spirit of the invention or beyond the scope of the appended claims.
Claims (3)
1. a kind of lance body structure of plasma build-up welding gun, including gun body, plasma (orifice) gas channel, protection gas channel, cooling water are logical
Road and powder channel, gun body are axially arranged, and the gun body includes rear lance, insulator, front gun body and the spray being connected by bolt
Mouth and the protective cover being threadedly connected on nozzle, the outer surface of the rear lance offers the first air inlet, in front gun body
It is provided centrally with the first gas port through front gun body, it is described in the first venthole of nozzle being provided centrally with through nozzle
First air inlet, the first gas port communicate with the first venthole three and form the plasma (orifice) gas channel, the rear lance
Outer surface offer two second air inlets, two second gas ports through front gun body are provided on front gun body, two second lead
Stomata is located at plasma (orifice) gas channel two sides, and the protective cover, which is separated and is formed with nozzle, is connected to external outlet chamber,
Second air inlet, the second gas port, outlet chamber three are connected to and are formed the protection gas channel, the rear lance
Outer surface offers inlet opening, and the periphery in front gun body positioned at plasma channel is provided with first annular chamber, in nozzle
The second annular compartment is offered positioned at the periphery of plasma channel, the first annular chamber is communicated with the second annular compartment,
The outer surface of front gun body offers apopore, and inlet opening, first annular chamber, apopore are sequentially communicated and form the cooling
Aquaporin is provided with two powder entering holes for running through rear lance on the rear lance, and two are provided on the front gun body through front gun body
Powder-guiding hole, two flour openings for running through nozzle are tiltedly installed on the nozzle, the flour opening is located at plasma channel two sides
And intersect with the outlet of plasma channel, the powder entering hole, powder-guiding hole, flour opening communicate and three forms the powder and leads to
Road.
2. a kind of lance body structure of plasma build-up welding gun according to claim 1, it is characterised in that: in rear lance
Portion is provided with the mounting hole through rear lance, and installation set is provided in the mounting hole, and the outer surface of installation set is provided with two gears
Block and block is against in inner wall of the hole installing, be formed with diversion trench between two block and diversion trench respectively with inlet opening and the first ring
Shape chamber communicates.
3. a kind of lance body structure of plasma build-up welding gun according to claim 1, it is characterised in that: the rear lance,
Insulator, front gun body and nozzle are connected by bolt, and the protective cover is threadedly coupled 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 CN106001879A (en) | 2016-10-12 |
| CN106001879B true CN106001879B (en) | 2019-03-22 |
Family
ID=57084904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610487613.1A Active CN106001879B (en) | 2016-06-24 | 2016-06-24 | A kind of lance body structure of plasma build-up welding gun |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106001879B (en) |
Families Citing this family (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 |
| 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 |
| 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 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87210474U (en) * | 1987-08-20 | 1988-08-03 | 铁道部大连机车车辆工厂 | Plasma welding torch |
| CN2083976U (en) * | 1990-12-26 | 1991-09-04 | 机械电子工业部哈尔滨焊接研究所 | Powdered plasma build-up welding gun |
| JP2635833B2 (en) * | 1991-02-27 | 1997-07-30 | 日鐵溶接工業株式会社 | Plasma powder overlay |
| JP2744530B2 (en) * | 1991-03-11 | 1998-04-28 | 日鐵溶接工業株式会社 | Plasma powder cladding torch |
| CN2430240Y (en) * | 2000-07-05 | 2001-05-16 | 机械工业部哈尔滨焊接研究所 | High melting speed, low dilute rate plasma build-up welding gun |
| CN205702819U (en) * | 2016-06-24 | 2016-11-23 | 宁波驰迈激光科技有限公司 | A kind of lance body structure of plasma build-up welding gun |
-
2016
- 2016-06-24 CN CN201610487613.1A patent/CN106001879B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN106001879A (en) | 2016-10-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106001878B (en) | A kind of plasma surfacing equipment | |
| CN106001879B (en) | A kind of lance body structure of plasma build-up welding gun | |
| ITTO20010069A1 (en) | AIR MIST NOZZLE GROUP WITH IMPROVED HAT. | |
| CN105132038B (en) | A kind of modified coal water slurry process burner | |
| TW354361B (en) | Burner | |
| CN205733396U (en) | A kind of plasma surfacing equipment | |
| CN205702819U (en) | A kind of lance body structure of plasma build-up welding gun | |
| CN103403449A (en) | Heavy cutting nozzle for cutting steel workpieces in particular | |
| CN106624305A (en) | Powder plasma surfacing torch for inner holes | |
| CN105422188A (en) | Turbine blade with heat shield type composite cooling structure | |
| CN206519647U (en) | A kind of powder plasma built-up welding endoporus rifle | |
| CN210274655U (en) | Multistage expansion section electrode spray pipe of high-power thermal plasma torch | |
| CN101956627A (en) | Gasoline engine cylinder cover with enhanced cooling bridge area high temperature part | |
| CN103486591B (en) | A kind of gas-turbine combustion chamber anti-backfire type nozzle linkage section assembly | |
| CN111059571A (en) | Split combustion chamber with U-shaped channel structure | |
| CN216370627U (en) | Swirl ring for plasma cutting gun | |
| CN212899228U (en) | Water-cooled hydraulic oil cylinder | |
| CN201723320U (en) | Gasoline engine cylinder cap with function of intensively cooling high-temperature position of nose-bridge zone | |
| CN106944728A (en) | A kind of small Hole plasma welding rifle of the miniature depth of full water cooling type | |
| CN210560536U (en) | Cast forging type tuyere medium sleeve | |
| CN206677378U (en) | A kind of plasma arc powder surfacing rifle | |
| CN203007309U (en) | Multifunctional furnace wall cluster oxygen lance | |
| EP1477645A1 (en) | Water-cooling type engine | |
| US10260815B2 (en) | Lance and multi-fluid lance device equipped with the same | |
| CN204470770U (en) | A kind of double back journey large discharge welding machine water-cooling rifle head |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 009 35 16-1-5, Xinghai North Road, Ningbo hi tech Zone, Zhejiang, 315000 Patentee after: Ningbo Chi Mai Laser Technology Co., Ltd. Address before: Kaohsiung Beilun District 315800 in Zhejiang province Ningbo city new village Zhu No. 76 Patentee before: Ningbo Chi Mai Laser Technology Co., Ltd. |