CN206898567U - A kind of new type nozzle and apply its plasma cutting-torch - Google Patents
A kind of new type nozzle and apply its plasma cutting-torch Download PDFInfo
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- CN206898567U CN206898567U CN201720546799.3U CN201720546799U CN206898567U CN 206898567 U CN206898567 U CN 206898567U CN 201720546799 U CN201720546799 U CN 201720546799U CN 206898567 U CN206898567 U CN 206898567U
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- fixed seat
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- seat
- torch
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Abstract
The utility model discloses a kind of new type nozzle and its plasma cutting-torch is applied, is related to plasma cutting-torch technical field.The utility model includes nozzle body, the bottom of nozzle body is provided with puff prot, the top of nozzle body is provided with external screw thread to be threadedly coupled with nozzle fixed seat, the outside of nozzle body is provided with the annular boss with nozzle fixed seat palette, and the annular boss is located at externally threaded lower section, the annular groove of a lower section for being located at annular boss is additionally provided with the outside of nozzle body, the first sealing ring is provided with annular groove, cooled region is formed between the first sealing ring and annular boss.A kind of new type nozzle of the present utility model, cooled region is formed between the first sealing ring and annular boss, to the effective cooling of nozzle, can improve the service life of nozzle, and simple in construction, good sealing effect.
Description
Technical field
Plasma cutting-torch technical field is the utility model is related to, more specifically to a kind of new type nozzle and using it
Plasma cutting-torch.
Background technology
Plasma cut has that high in machining efficiency, quality is good, low cost and other advantages, using more and more wider in thermal cutting
General, it relies primarily on the plasma arc of high temperature and high speed and its flame stream, and cut workpiece is melted and evaporated, and the matrix that blows off.Deng
Ion cutting blowpipe is the critical component in plasma cutting system, and it is mainly by the crucial portion such as cutting torch body, insulation sleeve, electrode and nozzle
Part is formed, and electrode is insulated with nozzle by insulation sleeve, discharge cavity is formed between electrode and nozzle chamber, when the hafnium filament of electrode tip
After energization, gas is set to produce high-temperature plasma in discharge cavity internal ionization, high-temperature plasma is sprayed to gold from the spout of nozzle
Category material is cut.
The nozzle of plasma cutting-torch is one of main consumable accessory of plasma cutting gun, it is therefore desirable to nozzle is carried out effective
Cooling, to ensure that nozzle has longer service life.The plasma cutting-torch of high current has been difficult to full using gas radiating
Foot cooling is required, it is necessary to be cooled down using cooling water to nozzle.
The content of the invention
1. utility model technical problems to be solved
The purpose of this utility model is to overcome the existing effect to radiate using gas procedure of existing nozzle of cutting torch not
The problem of preferable, there is provided a kind of new type nozzle and apply its plasma cutting-torch.Using the technical solution of the utility model, nozzle
The outside of body is provided with the annular boss with nozzle fixed seat palette and the annular groove positioned at the lower section of annular boss,
The first sealing ring is provided with annular groove, cooled region is formed between the first sealing ring and annular boss, can be effectively cold to nozzle
But, the service life of nozzle is improved, and simple in construction, good sealing effect.
2. technical scheme
To reach above-mentioned purpose, technical scheme provided by the utility model is：
A kind of new type nozzle of the present utility model, including nozzle body, the bottom of described nozzle body are provided with puff prot,
The top of described nozzle body is provided with external screw thread to be threadedly coupled with nozzle fixed seat, and the outside of described nozzle body is provided with
With the annular boss of nozzle fixed seat palette, and the annular boss is located at externally threaded lower section, described nozzle body
Outside is additionally provided with the annular groove of a lower section for being located at annular boss, and the first sealing ring is provided with described annular groove, described
The first sealing ring and annular boss between form cooled region.
Further, it is additionally provided with the outside of described nozzle body second close between external screw thread and annular boss
Seal.
Further, the bottom in the outside of described nozzle body is provided with installation flat mouth.
A kind of plasma cutting-torch of the present utility model, including cutting torch body, electrodes conduct seat, interior insulation set, nozzle fixed seat
And electrode, described electrodes conduct seat and nozzle fixed seat are installed in cutting torch body, and electrodes conduct seat is covered by interior insulation
In nozzle fixed seat, described electrode is installed on electrodes conduct seat, the plasma cutting-torch also include fixed cover and on
The nozzle stated, described nozzle are installed in nozzle fixed seat, and discharge cavity is formed between described electrode and nozzle, and described consolidates
Surely it is covered between nozzle and nozzle fixed seat, the cooling water channel of sealing is formed between described nozzle and fixed cover.
Further, described cutting torch body is provided with the first water inlet pipe, after described electrodes conduct seat is connected with electrode
The enclosed electrode inner chamber of first water inlet pipe of connection is formed, described cutting torch body is provided with the first water outlet connected with electrode inner chamber
Pipe.
Further, the second water inlet pipe and the second outlet pipe are additionally provided with described cutting torch body, described nozzle is fixed
The circulating water cavity of cooling water channel is communicated with seat, described circulating water cavity connects with the second water inlet pipe and the second outlet pipe respectively
It is logical.
Further, the head of described cutting torch body is provided with the cooling water cavity of an annular, and the cooling water cavity passes through water hole
Connected with circulating water cavity.
Further, described water hole is located on the external insulation sleeve being arranged on the outside of nozzle fixed seat, and described is outer exhausted
The outside of edge set is provided with interior pressure cap, and described cooling water cavity is located between external insulation sleeve and interior pressure cap.
Further, described electrodes conduct seat is connected with electrode be additionally provided with one in the electrode inner chamber to be formed in edema with the heart involved
Electrode intracavity bottom is stretched into pipe, one end of the central water tube, and the other end is connected with water inlet pipe.
Further, the gas channel of air inlet pipe, described gas channel are communicated with described nozzle fixed seat
It is divided into two-way gas in nozzle fixed seat, gas is communicated to nozzle by the first stomata in nozzle fixed seat all the way
Periphery, another way gas connection to the discharge cavity between electrode and nozzle.
3. beneficial effect
Using technical scheme provided by the utility model, compared with existing known technology, have the advantages that：
(1) a kind of new type nozzle of the present utility model, the outside of its nozzle body are provided with and nozzle fixed seat palette
Annular boss and the annular groove positioned at the lower section of annular boss, the first sealing ring is provided with annular groove, first seals
Cooled region is formed between circle and annular boss, the service life of nozzle to the effective cooling of nozzle, can be improved, and it is simple in construction,
Good sealing effect.
(2) a kind of new type nozzle of the present utility model, it is additionally provided with positioned at external screw thread and convex annular on the outside of its nozzle body
The second sealing ring between platform, seals with nozzle fixed seat and coordinates, and sealing effectiveness is more preferable.
(3) a kind of new type nozzle of the present utility model, the bottom in the outside of its nozzle body are provided with installation flat mouth, be easy to by
The nozzle is installed in nozzle fixed seat.
(4) a kind of plasma cutting-torch of the present utility model, cooled down provided with two-way, all the way to cooling of electrode, another way is to spray
It is blunt but, drastically increase the service life of electrode and nozzle.
(5) a kind of plasma cutting-torch of the present utility model, its electrodes conduct seat are connected with electrode in the electrode inner chamber to be formed
A central water tube is additionally provided with, electrode intracavity bottom is stretched into one end of the central water tube, extends the flowing of cooling water in the electrodes
Distance, electrode is obtained fully contact heat-exchanging with cooling water, further improve cooling effect.
(6) a kind of plasma cutting-torch of the present utility model, the gas that air inlet pipe inputs is divided into ionization work gas and cold by it
But gas two-way is protected, is further radiated for cutting torch, makes the consumable accessorys such as electrode and nozzle more durable.
Brief description of the drawings
Fig. 1 is a kind of sectional view one of plasma cutting-torch of the present utility model；
Fig. 2 is a kind of sectional view two of plasma cutting-torch of the present utility model；
Fig. 3 is a kind of structural representation of new type nozzle of the present utility model.
Label declaration in schematic diagram：
1st, nozzle；1-1, puff prot；1-2, external screw thread；1-3, the second sealing ring；1-4, annular boss；1-5, the first sealing
Circle；1-6, installation flat mouth；1-7, annular groove；2nd, cutting torch body；3rd, the first water inlet pipe；4th, the first outlet pipe；5th, the second water inlet pipe；
6th, electrodes conduct seat；6-1, the first apopore；7th, interior insulation set；8th, central water tube；9th, nozzle fixed seat；9-1, inlet opening；9-
2nd, first annular water cavity；9-3, water channel；9-4, gas channel；9-5, annular air cavity；9-6, the second annular water chamber；9-7, second go out
Water hole；9-8, the first stomata；10th, external insulation sleeve；10-1, water hole；10-2, cooling water cavity；11st, interior pressure cap；12nd, outer pressure cap；13、
Fixed cover；13-1, connecting cavity；13-2, cooling water channel；14th, shielding cap；15th, electrode；16th, striking line；17th, air inlet pipe；18th,
Two outlet pipes；19th, ring of eddy；19-1, air inlet；19-2, helicla flute.
Embodiment
To further appreciate that content of the present utility model, the utility model is described in detail in conjunction with the accompanying drawings and embodiments.
Embodiment
With reference to Fig. 1 and Fig. 3, a kind of new type nozzle of the present embodiment, including nozzle body, the bottom of nozzle body are provided with spray
Gas port 1-1, the top of nozzle body are provided with external screw thread 1-2 to be threadedly coupled with nozzle fixed seat 9, and the outside of nozzle body is provided with
With the annular boss 1-4 of the palette of nozzle fixed seat 9, and annular boss 1-4 be located at external screw thread 1-2 lower section, specifically,
The second sealing ring 1-3 being additionally provided with the outside of nozzle body between external screw thread 1-2 and annular boss 1-4, during installation, annular
Boss 1-4 upper surface is bonded with the end face of nozzle fixed seat 9, and the second sealing ring 1-3 and the madial wall of nozzle fixed seat 9 are matched somebody with somebody
Close, the new type nozzle and the sealing effectiveness of nozzle fixed seat 9 are very excellent.One is additionally provided with the outside of nozzle body and is located at convex annular
The first sealing ring 1-5, the first sealing ring 1-5 and fixation are provided with the annular groove 1-7 of platform 1-4 lower section, annular groove 1-7
Seal and coordinate between lid 13, then cooled region, i.e. cooling water channel 13-2 are formed between the first sealing ring 1-5 and annular boss 1-4,
Nozzle body can effectively be cooled down, improve the service life of nozzle.In addition, the bottom in the outside of nozzle body is provided with installation
Flat mouth 1-6, during installation, it is easy to clamping installation flat mouth 1-6 to be threadedly coupled nozzle 1 with nozzle fixed seat 9, it is easy for installation.
With reference to Fig. 1 and Fig. 2, a kind of plasma cutting-torch of the present embodiment, including cutting torch body 2, electrodes conduct seat 6, interior insulation
Set 7, nozzle fixed seat 9 and electrode 15, electrodes conduct seat 6 and nozzle fixed seat 9 are installed in cutting torch body 2, and electrodes conduct seat 6
It is sheathed on by interior insulation set 7 in nozzle fixed seat 9, electrode 15 is installed on electrodes conduct seat 6, and the plasma cutting-torch also includes
Fixed cover 13 and above-mentioned nozzle 1, nozzle 1 are installed in nozzle fixed seat 9, and discharge cavity is formed between electrode 15 and nozzle 1,
Fixed cover 13 is located between nozzle 1 and nozzle fixed seat 9, and the cooling water channel 13-2 of sealing is formed between nozzle 1 and fixed cover 13,
Connecting cavity 13-1 is formed between nozzle fixed seat 9 and fixed cover 13, connecting cavity 13-1 connects with cooling water channel 13-2.
The cutting torch body 2 of the present embodiment is provided with the first water inlet pipe 3, and electrodes conduct seat 6 forms one after being connected with electrode 15 and connected
The enclosed electrode inner chamber of logical first water inlet pipe 3, cutting torch body 2 are provided with the first outlet pipe 4 connected with electrode inner chamber, preferably,
A central water tube 8 is additionally provided with the electrode inner chamber, electrode intracavity bottom, the other end and water inlet are stretched into one end of the central water tube 8
Pipe 3 is connected, and extends flow distance of the cooling water in electrode 15, electrode 15 is fully contacted with cooling water
Heat exchange, further improves cooling effect.The the first apopore 6-1 and electrode that first outlet pipe 4 is provided with by electrodes conduct seat 6
Inner chamber connects.
The second water inlet pipe 5 and the second outlet pipe 18 are additionally provided with the cutting torch body 2 of the present embodiment, nozzle fixed seat 9 is provided with
Cooling water channel 13-2 circulating water cavity is connected, circulating water cavity connects with the second water inlet pipe 5 and the second outlet pipe 18 respectively, and cutting torch
The head of body 2 is provided with the cooling water cavity 10-2 of an annular, and cooling water cavity 10-2 is connected by water hole 10-1 with circulating water cavity.Tool
Body, the circulating water cavity of the present embodiment includes first annular water cavity 9-2, the second annular water chamber 9-6 and the first annular water of connection
Chamber 9-2 and the second annular water chamber 9-6 water channel 9-3, the second water inlet pipe 5 by the inlet opening 9-1 in nozzle fixed seat 9 with
First annular water cavity 9-2 connections, and the connecting cavity formed between first annular water cavity 9-2 and nozzle fixed seat 9 and fixed cover 13
13-1 is connected, and cooling water cavity 10-2 is connected by water hole 10-1 with the second annular water chamber 9-6.More specifically, water hole 10-1 is located at
On the external insulation sleeve 10 in the outside of nozzle fixed seat 9, the outside of external insulation sleeve 10 is provided with interior pressure cap 11, cooling water cavity 10-2
Between external insulation sleeve 10 and interior pressure cap 11, the cooling water in cooling water cavity 10-2 can be such that torch body is fully dissipated
Heat, it is particularly possible to meet the cooling requirement of high current cutting torch.Second outlet pipe 18 is gone out by second in nozzle fixed seat 9
Water hole 9-7 connects with the second annular water chamber 9-6.
Hookup 1 and Fig. 2, the gas channel 9-4 of air inlet pipe 17, gas are communicated with the nozzle fixed seat 9 of the present embodiment
Circulation road 9-4 is divided into two-way gas in nozzle fixed seat 9, and gas passes through the first stomata in nozzle fixed seat 9 all the way
9-8 is communicated to the periphery of nozzle 1, another way gas connection to the discharge cavity between electrode 15 and nozzle 1, air inlet pipe 17 is inputted
Gas be divided into ionization work gas and cooling protection gas two-way, further radiated for cutting torch, make electrode 15 and the grade of nozzle 1 easy
It is more durable to damage part.Specifically, the annular gas connected with gas channel 9-4 is formed between nozzle fixed seat 9 and interior insulation set 7
Chamber 9-5, the first stomata 9-8 connect with annular air cavity 9-5.In addition, the outside of interior pressure cap 11 is additionally provided with outer pressure cap 12, interior pressure cap 11
The shielding cap 14 positioned at the outside of nozzle 1 is provided between outer pressure cap 12, also stomata is irised out at least provided with one on shielding cap 14.In electricity
It is additionally provided with ring of eddy 19 on the lateral wall of pole 15, annular air cavity 9-5 air inlet is communicated with the ring of eddy 19 in the present embodiment
Hole 19-1, the inner side of ring of eddy 19 are additionally provided with the helical airflow passages 19-2, helical airflow passages 19- of a connection air admission hole 19-1
2 are communicated to the discharge cavity between electrode 15 and nozzle 1, and swirling eddy is formed by ring of eddy 19, make air-flow pressurization accelerate to be formed
The plasma arc concentrated at a high speed, improves cut quality, meanwhile, helical airflow passages 19-2 adds connecing for gas and electrode 15
Contacting surface is accumulated, and electrode 15 is radiated faster.
With reference to Fig. 1 and Fig. 2, a kind of plasma cutting-torch of the present embodiment, in use, electrode 15 connects power cathode, nozzle 1 is logical
Cross the striking line 16 being connected in nozzle fixed seat 9 and connect positive source, working gas is inputted in cutting torch from air inlet pipe 17, by air-flow
Passage 9-4 enters annular air cavity 9-5, and is divided into two-way gas in annular air cavity 9-5, all the way gas as ionization work gas according to
Secondary air admission hole 19-1 and helical airflow passages 19-2 by ring of eddy 19 enters in the discharge cavity between electrode 15 and nozzle 1,
Ionization forms plasma arc and sprayed by the puff prot 1-1 of nozzle 1；Another way gas enters nozzle 1 by the first stomata 9-8
Periphery forms cooling protection gas, and is blown out by the venthole of shielding cap 14, and nozzle 1 and shielding cap 14 are cooled down, and will cut
Heat in torch is taken out of.Cooling water enters in cutting torch from the first water inlet pipe 3 all the way, and electricity is reached by central water tube 8 in cutting torch
Turn back into the inner chamber of electrodes conduct seat 6 after the intracavity bottom of pole 15, and discharged by the first apopore 6-1 by the first outlet pipe 4；
Another way cooling water enters in cutting torch from the second water inlet pipe 5, successively by inlet opening 9-1, first annular water cavity 9-2, connecting cavity
13-1 is reached to be cooled down in cooling water channel 13-2 to nozzle 1, and the cooling water in first annular water cavity 9-2 also through water channel 9-3,
Second annular water chamber 9-6 and water hole 10-1 reaches cooling water cavity 10-2, torch body is cooled down, finally via the second water outlet
Hole 9-7 and the second outlet pipe 18 are discharged.
A kind of new type nozzle of the present utility model, the outside of nozzle body are provided with the annular with nozzle fixed seat palette
Boss and the annular groove positioned at the lower section of annular boss, annular groove is interior to be provided with the first sealing ring, the first sealing ring and ring
Cooled region is formed between shape boss, the service life of nozzle to the effective cooling of nozzle, can be improved, and simple in construction, sealing effect
Fruit is good.
Schematically the utility model and embodiments thereof are described above, this describes no restricted, accompanying drawing
Shown in be also one of embodiment of the present utility model, actual structure is not limited thereto.So if this area
Those of ordinary skill enlightened by it, in the case where not departing from the utility model and creating objective, without creatively designing
The frame mode similar to the technical scheme and embodiment, the scope of protection of the utility model all should be belonged to.
Claims (10)
1. a kind of new type nozzle, including nozzle body, the bottom of described nozzle body is provided with puff prot (1-1), described spray
The top of mouth body is provided with external screw thread (1-2) to be threadedly coupled with nozzle fixed seat (9), it is characterised in that：Described nozzle sheet
The outside of body is provided with the annular boss (1-4) with nozzle fixed seat (9) palette, and the annular boss (1-4) is located at outer spiral shell
The lower section of line (1-2), be additionally provided with the outside of described nozzle body one positioned at the lower section of annular boss (1-4) annular groove
(1-7), described annular groove (1-7) is interior to be provided with the first sealing ring (1-5), described the first sealing ring (1-5) and convex annular
Cooled region is formed between platform (1-4).
A kind of 2. new type nozzle according to claim 1, it is characterised in that：Position is additionally provided with the outside of described nozzle body
The second sealing ring (1-3) between external screw thread (1-2) and annular boss (1-4).
A kind of 3. new type nozzle according to claim 2, it is characterised in that：The bottom in the outside of described nozzle body is set
There is installation flat mouth (1-6).
4. a kind of plasma cutting-torch, including cutting torch body (2), electrodes conduct seat (6), interior insulation set (7), nozzle fixed seat (9) and
Electrode (15), described electrodes conduct seat (6) and nozzle fixed seat (9) are installed in cutting torch body (2), and electrodes conduct seat (6)
It is sheathed on by interior insulation set (7) in nozzle fixed seat (9), described electrode (15) is installed on electrodes conduct seat (6), and it is special
Sign is：Nozzle (1) described in also including fixed cover (13) and claim 1, described nozzle (1) are installed on nozzle and fixed
On seat (9), discharge cavity is formed between described electrode (15) and nozzle (1), described fixed cover (13) is located at nozzle (1) and spray
Between mouth fixed seat (9), the cooling water channel (13-2) of sealing is formed between described nozzle (1) and fixed cover (13).
A kind of 5. plasma cutting-torch according to claim 4, it is characterised in that：Described cutting torch body (2) is provided with first
Water inlet pipe (3), described electrodes conduct seat (6) form the sealing electricity of first water inlet pipe of connection (3) after being connected with electrode (15)
Pole inner chamber, described cutting torch body (2) are provided with the first outlet pipe (4) connected with electrode inner chamber.
A kind of 6. plasma cutting-torch according to claim 5, it is characterised in that：Is additionally provided with described cutting torch body (2)
Two water inlet pipes (5) and the second outlet pipe (18), cooling water channel (13-2) circulation is communicated with described nozzle fixed seat (9)
Water cavity, described circulating water cavity connect with the second water inlet pipe (5) and the second outlet pipe (18) respectively.
A kind of 7. plasma cutting-torch according to claim 6, it is characterised in that：The head of described cutting torch body (2) is provided with
The cooling water cavity (10-2) of one annular, the cooling water cavity (10-2) are connected by water hole (10-1) with circulating water cavity.
A kind of 8. plasma cutting-torch according to claim 7, it is characterised in that：Described water hole (10-1) is located at and is arranged on
On external insulation sleeve (10) on the outside of nozzle fixed seat (9), the outside of described external insulation sleeve (10) is provided with interior pressure cap (11), described
Cooling water cavity (10-2) be located between external insulation sleeve (10) and interior pressure cap (11).
A kind of 9. plasma cutting-torch according to claim 8, it is characterised in that：Described electrodes conduct seat (6) and electrode
(15) central water tube (8) is additionally provided with the electrode inner chamber that connection is formed, bottom of chamber in electrode is stretched into one end of the central water tube (8)
Portion, the other end are connected with water inlet pipe (3).
A kind of 10. plasma cutting-torch according to claim 4~9 any one, it is characterised in that：Described nozzle is fixed
The gas channel (9-4) of air inlet pipe (17) is communicated with seat (9), described gas channel (9-4) is in nozzle fixed seat (9)
It is divided into two-way gas, gas is communicated to the outer of nozzle (1) by the first stomata (9-8) in nozzle fixed seat (9) all the way
Week, the discharge cavity between another way gas connection to electrode (15) and nozzle (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720546799.3U CN206898567U (en) | 2017-05-17 | 2017-05-17 | A kind of new type nozzle and apply its plasma cutting-torch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720546799.3U CN206898567U (en) | 2017-05-17 | 2017-05-17 | A kind of new type nozzle and apply its plasma cutting-torch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206898567U true CN206898567U (en) | 2018-01-19 |
Family
ID=61288947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720546799.3U Expired - Fee Related CN206898567U (en) | 2017-05-17 | 2017-05-17 | A kind of new type nozzle and apply its plasma cutting-torch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206898567U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109848615A (en) * | 2019-01-08 | 2019-06-07 | 陶玉梅 | Shielding case that is air-cooled with optimization and improving cutting power |
| WO2022134704A1 (en) * | 2020-12-24 | 2022-06-30 | 江苏博迁新材料股份有限公司 | Nozzle structure of plasma arc gun |
| CN117283107A (en) * | 2023-11-27 | 2023-12-26 | 山东伊诺维森焊割科技有限公司 | Plasma cutting torch |
-
2017
- 2017-05-17 CN CN201720546799.3U patent/CN206898567U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109848615A (en) * | 2019-01-08 | 2019-06-07 | 陶玉梅 | Shielding case that is air-cooled with optimization and improving cutting power |
| WO2022134704A1 (en) * | 2020-12-24 | 2022-06-30 | 江苏博迁新材料股份有限公司 | Nozzle structure of plasma arc gun |
| CN117283107A (en) * | 2023-11-27 | 2023-12-26 | 山东伊诺维森焊割科技有限公司 | Plasma cutting torch |
| CN117283107B (en) * | 2023-11-27 | 2024-01-26 | 山东伊诺维森焊割科技有限公司 | Plasma cutting torch |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180119 Termination date: 20200517 |
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| CF01 | Termination of patent right due to non-payment of annual fee |