CN113523516A - Pipeline welding protection air chamber device - Google Patents
Pipeline welding protection air chamber device Download PDFInfo
- Publication number
- CN113523516A CN113523516A CN202110717271.9A CN202110717271A CN113523516A CN 113523516 A CN113523516 A CN 113523516A CN 202110717271 A CN202110717271 A CN 202110717271A CN 113523516 A CN113523516 A CN 113523516A
- Authority
- CN
- China
- Prior art keywords
- sleeve
- operating rod
- air hole
- blocking plate
- axial direction
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- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/32—Accessories
-
- 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
- B23K9/00—Arc welding or cutting
- B23K9/16—Arc welding or cutting making use of shielding gas
-
- 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
- B23K9/00—Arc welding or cutting
- B23K9/32—Accessories
- B23K9/325—Devices for supplying or evacuating shielding gas
Abstract
The invention provides a pipeline welding protection air chamber device which comprises an operating rod, a sleeve sleeved outside the operating rod, a first blocking plate connected to one end of the operating rod, a connecting assembly used for connecting the operating rod, the sleeve and the first blocking plate, and a second blocking plate arranged outside the sleeve, wherein two ends of the operating rod are exposed out of the sleeve, the operating rod can move along the axial direction of the sleeve, an air passage is formed by enclosing the operating rod and the sleeve, the sleeve is sequentially provided with a first air hole and a second air hole along the axial direction of the sleeve, and the first air hole, the air passage and the second air hole are sequentially communicated; the first blocking plate is arranged on one side of the second air hole far away from the first air hole along the axial direction of the sleeve; when the operating rod moves along the axial direction of the sleeve, the connecting component enables the first blocking plate to be unfolded or folded; the second closure plate can move along the axial direction of the sleeve, the second closure plate is arranged between the first air hole and the second air hole along the axial direction of the sleeve, and the pipeline welding protective air chamber device can establish a protective air chamber in the three-way pipe fitting to avoid bad welding seams.
Description
Technical Field
The invention belongs to the technical field of pipeline welding, and particularly relates to a pipeline welding protective gas chamber device.
Background
In the case of welding a stainless steel weld seam, the shielding gas is not only the shielding medium in the welding area, but also the gas medium that generates the arc. One of them is argon, which is an inert gas, hardly reacts with any metal, is insoluble in metal, has a density greater than that of air, and has a specific heat capacity and a thermal conductivity smaller than that of air. These characteristics give the argon a good protective action and good arc-stabilizing properties. For metals and alloys which are very sensitive to oxidation, argon is required to be introduced into the back of the weld joint to achieve a stronger protective effect and prevent oxidation (causing porous or honeycomb defects) of the back of the root of the weld joint.
The maintenance operation relates to the welding equipment and the pipeline often having turbulent flow condition, forms negative pressure easily, can't normally establish argon gas chamber, leads to welding quality uncontrollable, especially carries out during nuclear power overhaul tee bend pipe fitting welding seam and reprocesses, is difficult to establish argon gas chamber, leads to the tee bend pipe fitting welding seam to appear badly.
Disclosure of Invention
The embodiment of the invention aims to provide a pipeline welding protective air chamber device, which is used for solving the technical problem that poor welding seams are caused due to the fact that a protective air chamber is difficult to establish when a three-way pipe fitting is repaired and welded in the prior art.
In order to achieve the purpose, the invention adopts the technical scheme that: provided is a pipe welding shielding gas chamber device, comprising:
an operating lever;
the sleeve is sleeved outside the operating rod, two ends of the operating rod are exposed out of the sleeve, the operating rod can move along the axial direction of the sleeve, an air passage is formed by enclosing the operating rod and the sleeve, a first air hole and a second air hole are sequentially formed in the sleeve along the axial direction of the sleeve, and the first air hole, the air passage and the second air hole are sequentially communicated;
the first blocking plate is connected to one end of the operating rod and is arranged on one side, far away from the first air hole, of the second air hole along the axial direction of the sleeve;
the connecting assembly is used for connecting the operating rod, the sleeve and the first blocking plate, and the connecting assembly enables the first blocking plate to be unfolded or folded when the operating rod moves along the axial direction of the sleeve; and
the second closure plate is arranged outside the sleeve, the second closure plate can move along the axial direction of the sleeve, and the second closure plate is arranged along the axial direction of the sleeve between the first air hole and the second air hole.
In one embodiment, the connection assembly includes a plurality of first links and a plurality of second links;
the first connecting rods are sequentially arranged along the circumferential direction of the operating rod and are fixed on one side, close to the first air hole, of the first blocking plate, and one end of each first connecting rod is rotatably connected to the operating rod;
the plurality of second connecting rods are sequentially arranged along the circumferential direction of the operating rod, and two ends of each second connecting rod are respectively and rotatably connected to the sleeve and the corresponding first connecting rod.
In one embodiment, the gas chamber device for pipeline welding protection further comprises a first fixing ring and a second fixing ring, the first blocking plate and the second fixing ring are sequentially sleeved outside one end of the operating rod, and the middle portion of the first blocking plate is clamped between the first fixing ring and the second fixing ring.
In one embodiment, the second fixing ring is disposed on a side of the first blocking plate close to the second blocking plate, and the first link is rotatably connected to the second fixing ring.
In one embodiment, both ends of the sleeve are screwed outside the operating rod.
In one embodiment, the pipe welding shielding gas chamber device further comprises a first gas pipe inserted into the first gas hole.
In one embodiment, the second closure plate is provided with a third air hole.
In one embodiment, the pipe welding shielding gas chamber device further comprises a second gas pipe inserted into the third gas hole.
In one embodiment, the second closure plate is threaded onto the exterior of the sleeve.
In one embodiment, the pipe welding protection gas chamber device further comprises a lock nut screwed outside the sleeve, and the lock nut is arranged between the second blocking plate and the first gas hole along the axial direction of the sleeve.
The pipeline welding protective gas chamber device provided by the invention has the beneficial effects that: compared with the prior art, the pipeline welding protective air chamber device is applied to the three-way pipe fitting, the three-way pipe fitting comprises a main pipeline and a branch pipe vertically communicated with the middle part of the main pipeline, when the pipeline welding protective air chamber device is used, the operating rod is moved along the axial direction of the sleeve pipe and the first blocking plate is folded, and one end, corresponding to the first blocking plate, of the pipeline welding protective air chamber device is inserted into the main pipeline through the branch pipe of the three-way pipe; moving the operating rod along the axial direction of the sleeve and opening the first blocking plate, and withdrawing the pipeline welding protection air chamber device from the branch pipe until the first blocking plate is tightly propped against the inner wall of the main pipeline; moving the second blocking plate along the axial direction of the sleeve to enable the second blocking plate to block the opening of the branch pipe, wherein at the moment, the first blocking plate, the second blocking plate and the inner wall of the pipeline between the first blocking plate and the second blocking plate form a closed protective air chamber, and inert gas is introduced into the protective air chamber through the air passage and the second air hole; and finally, repairing and welding the welding line between the main pipeline and the branch pipe, so that the defect of the repaired welding line can be avoided.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
FIG. 1 is a first schematic perspective view of a gas chamber apparatus for pipeline welding protection according to an embodiment of the present invention;
FIG. 2 is a schematic perspective view of the pipe welding shielding gas chamber device shown in FIG. 1 without the first blocking plate;
FIG. 3 is a schematic perspective view of a second embodiment of a gas chamber apparatus for pipeline welding protection according to the present invention;
FIG. 4 is a schematic diagram of an exploded structure of a pipeline welding shielding gas chamber device according to an embodiment of the present invention;
FIG. 5 is a first schematic view of a pipeline welding shielding gas chamber device according to an embodiment of the present invention;
FIG. 6 is a second schematic diagram of a pipeline welding shielding gas chamber device according to an embodiment of the present invention.
Wherein, in the figures, the respective reference numerals:
100-a lever; 110-a stationary section; 120-a connecting segment; 200-a cannula; 210-a first air vent; 211-a first air duct; 220-a second air hole; 300-airway; 400-a first closure plate; 500-a connecting assembly; 510-a first link; 520-a second link; 600-a second closure plate; 610-a third air hole; 611-a second trachea; 700-tee fitting; 710-a main conduit; 720-branch pipe; 800-a protective gas chamber; 910-a first retaining ring; 920-a second retaining ring; 930-locking the connection; 940-locking nut.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings, which is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and is therefore not to be construed as limiting the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
Referring to fig. 1 to 4, an embodiment of the present invention provides a gas chamber 800 device for protecting pipeline welding, including an operation rod 100, a sleeve 200, a first blocking plate 400, a connection assembly 500, and a second blocking plate 600, wherein the sleeve 200 is sleeved outside the operation rod 100, two ends of the operation rod 100 are exposed outside the sleeve 200, the operation rod 100 can move along an axial direction of the sleeve 200, an air passage 300 is defined between the operation rod 100 and the sleeve 200, the sleeve 200 is sequentially provided with a first air hole 210 and a second air hole 220 along an axial direction thereof, and the first air hole 210, the air passage 300, and the second air hole 220 are sequentially communicated; the first blocking plate 400 is connected to one end of the operating rod 100, and the first blocking plate 400 is arranged on one side of the second air hole 220 far away from the first air hole 210 along the axial direction of the sleeve 200; the connecting assembly 500 is used for connecting the operating rod 100, the sleeve 200 and the first blocking plate 400, and when the operating rod 100 moves along the axial direction of the sleeve 200, the connecting assembly 500 enables the first blocking plate 400 to be opened or closed; the second blocking plate 600 is disposed outside the sleeve 200, the second blocking plate 600 can move along the axial direction of the sleeve 200, and the second blocking plate 600 is disposed between the first air hole 210 and the second air hole 220 along the axial direction of the sleeve 200.
As shown in fig. 5 and 6, the pipe welding shielding gas chamber 800 device according to the embodiment of the present invention is applied to a tee pipe fitting 700, the tee pipe fitting 700 includes a main pipe 710 and a branch pipe 720 vertically communicated with the middle portion of the main pipe 710, and when the pipe welding shielding gas chamber 800 device is used, as shown in fig. 5, the operation rod 100 is moved in the axial direction of the sleeve 200 and the first blocking plate 400 is closed, and one end of the pipe welding shielding gas chamber 800 device corresponding to the first blocking plate 400 is inserted into the main pipe 710 through the branch pipe 720 of the tee pipe; as shown in fig. 6, the operation rod 100 is moved in the axial direction of the sleeve 200 to open the first blocking plate 400, and the pipe welding shielding gas chamber 800 is withdrawn from the branch pipe 720 until the first blocking plate 400 abuts against the inner wall of the main pipe 710; moving the second blocking plate 600 along the axial direction of the sleeve 200, so that the second blocking plate 600 blocks the opening of the branch pipe 720, and at this time, the first blocking plate 400, the second blocking plate 600 and the inner wall of the pipeline between the two form a closed protection air chamber 800; by introducing the inert gas into the first gas hole 210, the inert gas enters the shielding gas chamber 800 through the gas passage 300 and the second gas hole 220; and finally, repairing and welding the welding seam between the main pipeline 710 and the branch pipe 720, so that the defect of the repaired welding seam can be avoided. In this embodiment, when the gas pressure of the shield gas chamber 800 is too high, gas may be discharged through the first gas hole 210 to adjust the gas pressure of the shield gas chamber 800.
As an embodiment of the present invention, as shown in fig. 2 to 4, the connecting assembly 500 includes a plurality of first links 510 and a plurality of second links 520, the plurality of first links 510 are sequentially arranged along a circumferential direction of the operating rod 100 and fixed to a side of the first blocking plate 400 adjacent to the first air hole 210; one end of each first link 510 is rotatably connected to the operation lever 100; the plurality of second links 520 are sequentially arranged along the circumferential direction of the operation lever 100, and both ends of each second link 520 are rotatably connected to the sleeve 200 and the corresponding first link 510, respectively. In this structure, as shown in fig. 1, 2 and 5, when the end of the operating rod 100 provided with the first blocking plate 400 is moved in the axial direction of the sleeve 200 in the direction away from the second blocking plate 600, the plurality of first links 510 and the plurality of second links 520 cooperate to close the first blocking plate 400; as shown in fig. 3 and 6, when the end of the operation rod 100 provided with the first blocking plate 400 is moved in the axial direction of the sleeve 200 toward the direction approaching the second blocking plate 600, the plurality of first links 510 and the plurality of second links 520 cooperate to spread the first blocking plate 400.
As an embodiment of the present invention, the first link 510 may be, but is not limited to, fixed to the first blocking plate 400 by means of adhesion; one end of the first link 510 near the operation lever 100 may be, but is not limited to, rotatably connected to the operation lever 100 by a pin; one end of each second link 520 may be, but is not limited to being, pivotally connected to the sleeve 200 by a pin, and the other end may be, but is not limited to being, pivotally connected to the first link 510 by a pin. In this embodiment, the other end of the second link 520 is rotatably connected to an end of the first link 510 between both ends thereof or away from the operation lever 100.
As an embodiment of the present invention, as shown in fig. 4, the pipe welding shielding gas chamber 800 further includes a first fixing ring 910 and a second fixing ring 920, the first fixing ring 910, the first blocking plate 400 and the second fixing ring 920 are sequentially sleeved outside one end of the operation rod 100, and a middle portion of the first blocking plate 400 is clamped between the first fixing ring 910 and the second fixing ring 920, so as to fix the first blocking plate 400 at one end of the operation rod 100. In this embodiment, the second fixing ring 920 is disposed on a side of the first blocking plate 400 close to the second blocking plate 600, and the first link 510 is rotatably connected to the second fixing ring 920, specifically, but not limited to, the first link 510 is rotatably connected to the second fixing ring 920 by a pin.
As an embodiment of the present invention, as shown in fig. 4, the pipe welding shielding gas chamber 800 further includes a locking connector 930, the locking connector 930 may be, but is not limited to, a screw or a bolt, the operation rod 100 includes a fixing section 110 and a connecting section 120 connected in sequence, an outer diameter of the fixing section 110 is smaller than an outer diameter of the connecting section 120, the first fixing ring 910, the first blocking plate 400 and the second fixing ring 920 are sequentially sleeved outside the fixing section 110, inner diameters of the first fixing ring 910 and the second fixing ring 920 are both adapted to the outer diameter of the fixing section 110 and are smaller than the outer diameter of the connecting section 120, the locking connector 930 is inserted into the fixing section 110 of the operation rod 100 in an axial direction of the operation rod 100, and an end of the locking connector 930, which is far away from the operation rod 100, abuts against the first fixing ring 910, so as to prevent the first fixing ring 910, the first blocking plate 400 and the second fixing ring 920 from falling off the operation rod 100.
As an embodiment of the present invention, both ends of the sleeve 200 are screwed outside the operation rod 100, that is, the operation rod 100 (the connection section 120) is provided with an external thread, specifically, an external thread, both ends of the sleeve 200 are provided with an internal thread, and the external thread of the operation rod 100 is adapted to the internal thread of the sleeve 200, so that the operation rod 100 can move along the axial direction of the sleeve 200 by rotating the operation rod 100, and the operation rod 100 has a self-locking characteristic, and the operation rod 100 can be fixed at any position without manual work or other element fixing.
As an embodiment of the present invention, as shown in fig. 1, 3 and 4, the pipe welding shielding gas chamber 800 further includes a first gas pipe 211 inserted into the first gas hole 210, and the first gas pipe 211 is used for introducing or discharging gas. In this embodiment, the first gas tube 211 may be, but is not limited to being, threaded into the first gas bore 210.
As an embodiment of the present invention, as shown in fig. 1, 3, 4 and 6, the second blocking plate 600 is provided with a third air hole 610, and in this structure, the third air hole 610 can exhaust or introduce air, for example, when air is introduced from the first air hole 210, the air enters the shielding gas chamber 800 through the air passage 300 and the second air hole 220, and the third air hole 610 is communicated with the shielding gas chamber 800, and at this time, the third air hole 610 can be used for exhausting air, so that the air pressure in the shielding gas chamber 800 can be adjusted; alternatively, when gas is introduced from the third gas hole 610, the gas enters the protection gas chamber 800, the first gas hole 210 may be used to exhaust the gas, and the gas may reach the first gas hole 210 from the protection gas chamber 800 through the second gas hole 220 and the gas passage 300 and be exhausted, so that the gas pressure in the protection gas chamber 800 may be adjusted.
As an embodiment of the present invention, as shown in fig. 1, 3 and 4, the pipe welding shielding gas chamber 800 further includes a second gas pipe 611 inserted into the third gas hole 610, and the second gas pipe 611 is used to introduce or exhaust gas. In this embodiment, the second air tube 611 may be, but is not limited to, threaded into the first air hole 210 or integrally connected to the second blocking plate 600.
As an embodiment of the present invention, as shown in fig. 1, 3 and 4, the second blocking plate 600 is screwed outside the sleeve 200, i.e. the sleeve 200 is provided with an external thread, the second blocking plate 600 is provided with an internal thread, and the external thread of the sleeve 200 is matched with the internal thread of the second blocking plate 600, so that the second blocking plate 600 can move along the axial direction of the sleeve 200 by rotating the second blocking plate 600.
As an embodiment of the present invention, as shown in fig. 1, 3 and 4, the pipe welding shielding gas chamber 800 further includes a locking nut 940 screwed to the outside of the sleeve 200, and the locking nut 940 is disposed between the second blocking plate 600 and the first gas hole 210 along the axial direction of the sleeve 200. Under this structure, the lock nut 940 can lock the second blocking plate 600, preventing the second blocking plate 600 from shifting.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A pipe welding shielding gas chamber apparatus, comprising:
an operating lever;
the sleeve is sleeved outside the operating rod, two ends of the operating rod are exposed out of the sleeve, the operating rod can move along the axial direction of the sleeve, an air passage is formed by enclosing the operating rod and the sleeve, a first air hole and a second air hole are sequentially formed in the sleeve along the axial direction of the sleeve, and the first air hole, the air passage and the second air hole are sequentially communicated;
the first blocking plate is connected to one end of the operating rod and is arranged on one side, far away from the first air hole, of the second air hole along the axial direction of the sleeve;
the connecting assembly is used for connecting the operating rod, the sleeve and the first blocking plate, and the connecting assembly enables the first blocking plate to be unfolded or folded when the operating rod moves along the axial direction of the sleeve; and
the second closure plate is arranged outside the sleeve, the second closure plate can move along the axial direction of the sleeve, and the second closure plate is arranged along the axial direction of the sleeve between the first air hole and the second air hole.
2. The pipe weld shield plenum apparatus of claim 1, wherein the connection assembly includes a plurality of first links and a plurality of second links;
the first connecting rods are sequentially arranged along the circumferential direction of the operating rod and are fixed on one side, close to the first air hole, of the first blocking plate, and one end of each first connecting rod is rotatably connected to the operating rod;
the plurality of second connecting rods are sequentially arranged along the circumferential direction of the operating rod, and two ends of each second connecting rod are respectively and rotatably connected to the sleeve and the corresponding first connecting rod.
3. The tube welding shielding gas chamber device according to claim 2, further comprising a first fixing ring and a second fixing ring, wherein the first fixing ring, the first blocking plate and the second fixing ring are sequentially sleeved outside one end of the operating rod, and the middle portion of the first blocking plate is clamped between the first fixing ring and the second fixing ring.
4. The tube welding shielding gas chamber assembly of claim 3 wherein said second retaining ring is disposed on a side of said first closure plate adjacent said second closure plate, said first link being pivotally connected to said second retaining ring.
5. The tube weld shield plenum assembly of any one of claims 1 to 4, wherein the sleeve is threaded onto the handle bar at both ends.
6. The tube weld shielding gas chamber apparatus of any one of claims 1 to 4, further comprising a first gas tube inserted into the first gas hole.
7. The tube weld shield plenum assembly of any one of claims 1 to 4, wherein the second blanking panel is provided with a third air hole.
8. The tube weld shielding gas chamber apparatus of claim 7, further comprising a second gas tube inserted into the third gas hole.
9. The tube weld shield plenum apparatus of any one of claims 1 to 4, wherein the second closure plate is threaded outside the sleeve.
10. The tube weld shielding plenum apparatus of claim 9, further comprising a lock nut threaded onto the outside of the sleeve, the lock nut being disposed between the second closure plate and the first gas hole in the axial direction of the sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110717271.9A CN113523516B (en) | 2021-06-28 | 2021-06-28 | Pipeline welding protection air chamber device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110717271.9A CN113523516B (en) | 2021-06-28 | 2021-06-28 | Pipeline welding protection air chamber device |
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| Publication Number | Publication Date |
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| CN113523516A true CN113523516A (en) | 2021-10-22 |
| CN113523516B CN113523516B (en) | 2022-08-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110717271.9A Active CN113523516B (en) | 2021-06-28 | 2021-06-28 | Pipeline welding protection air chamber device |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004105994A (en) * | 2002-09-17 | 2004-04-08 | Hitachi Ltd | Welding method for tube and infusing nozzle for shielding gas for welding |
| CN104708186A (en) * | 2015-01-22 | 2015-06-17 | 中国神华能源股份有限公司 | Gas storage device for pipeline welding and pipeline welding method |
| CN106112231A (en) * | 2016-07-12 | 2016-11-16 | 中国五冶集团有限公司 | Argon-filled protection device is used in a kind of long-distance pipe welding |
| CN108000043A (en) * | 2017-11-14 | 2018-05-08 | 中冶天工（天津）装备制造有限公司 | A kind of pipeline welding gas protective device |
| CN110548970A (en) * | 2019-10-10 | 2019-12-10 | 中冶天工集团天津有限公司 | Argon arc welding internal argon filling protection device and using method |
| CN212495908U (en) * | 2020-05-11 | 2021-02-09 | 中建三局安装工程有限公司 | Stainless steel pipe argon flushing welding protection device |
-
2021
- 2021-06-28 CN CN202110717271.9A patent/CN113523516B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004105994A (en) * | 2002-09-17 | 2004-04-08 | Hitachi Ltd | Welding method for tube and infusing nozzle for shielding gas for welding |
| CN104708186A (en) * | 2015-01-22 | 2015-06-17 | 中国神华能源股份有限公司 | Gas storage device for pipeline welding and pipeline welding method |
| CN106112231A (en) * | 2016-07-12 | 2016-11-16 | 中国五冶集团有限公司 | Argon-filled protection device is used in a kind of long-distance pipe welding |
| CN108000043A (en) * | 2017-11-14 | 2018-05-08 | 中冶天工（天津）装备制造有限公司 | A kind of pipeline welding gas protective device |
| CN110548970A (en) * | 2019-10-10 | 2019-12-10 | 中冶天工集团天津有限公司 | Argon arc welding internal argon filling protection device and using method |
| CN212495908U (en) * | 2020-05-11 | 2021-02-09 | 中建三局安装工程有限公司 | Stainless steel pipe argon flushing welding protection device |
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| CN113523516B (en) | 2022-08-26 |
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