CN111168202A - Inert gas protection device and method for welding slide rail sleeve drain pipe joint - Google Patents
Inert gas protection device and method for welding slide rail sleeve drain pipe joint Download PDFInfo
- Publication number
- CN111168202A CN111168202A CN202010283132.5A CN202010283132A CN111168202A CN 111168202 A CN111168202 A CN 111168202A CN 202010283132 A CN202010283132 A CN 202010283132A CN 111168202 A CN111168202 A CN 111168202A
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- China
- Prior art keywords
- inert gas
- welding
- conical
- drain pipe
- conical cover
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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
- B23K9/16—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
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/12—Working by laser beam, e.g. welding, cutting or boring in a special atmosphere, e.g. in an enclosure
- B23K26/123—Working by laser beam, e.g. welding, cutting or boring in a special atmosphere, e.g. in an enclosure in an atmosphere of particular gases
-
- 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
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
-
- 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 relates to an inert gas protection device and method for welding a drain pipe joint of a sliding rail sleeve. The inert gas protection device comprises a conical cover; one end of the clamping rod is connected with the conical cover, and the other end of the clamping rod is connected with the driving device and is used for driving the conical cover to move under the driving of the driving device; and one end of the air pipe is connected with the conical cover, and the other end of the air pipe is connected with an air source and used for inputting inert gas into the conical cover. The invention limits the inert gas in a very small conical space through the conical cover, realizes the rapid inert gas protection of the welding line of the inner cavity of the drain pipe joint, obviously improves the inflation efficiency, greatly saves the use amount of the inert protective gas, and further lightens the harm of the high-concentration inert protective gas environment to operators.
Description
Technical Field
The invention relates to the technical field of welding, in particular to an inert gas protection device and method for welding a joint of a drain pipe of a sliding rail sleeve.
Background
The main function of the slide rail sleeve is to provide a motion space for the slide rail in an aircraft wing oil tank, so the slide rail sleeve is usually in a thin-wall, shell-shaped and cantilever beam stressed structure, and the central axis of the slide rail sleeve is consistent with the motion track of the slide rail and is in an arc shape, namely, the arc-shaped axis curved sleeve. In reality, the structures of the sliding rail sleeves are serialized, however, the external dimensions of the sleeves of each specification are limited by the installation positions of the sleeves, and a certain difference is presented. One typical configuration of the sliding track sleeve is shown in fig. 1, the diameter of the cylinder is generally between 100mm and 300mm, the wall thickness of the part is between 2mm and 6mm, the central axis of the sleeve is in a spatial arc shape, the radius of the arc axis is between 500mm and 2000mm, and the length of the sleeve is between 400mm and 700 mm. The diameter, the radius of the arc axis and the length of the sleeve of each specification are slightly different, so that the universality of the series of sleeves is poor. The axis of the drain pipe joint is provided with a through hole, and the intersection point of the through hole and the barrel is the lowest point of the sleeve at the installation position, and is used for timely discharging condensed water generated in the flight process out of the inner cavity of the sleeve.
The best method for realizing the integral manufacture of the sliding rail sleeve by adopting a welding method and sectional splicing is to firstly open a drain hole at the corner of the tail part of the cylinder by taking the lowest point of the sleeve installation as the center, then weld the joint of the drain pipe at the drain hole and finally realize the connection of the flange plate and the cylinder.
At present, when a butt-joint circumferential weld of a drain pipe joint and a sliding rail sleeve barrel is welded, in order to obtain a high-quality welded joint, inert protective gas is filled on the back of the weld, namely the whole interior of the barrel, so that a welding pool and a high-temperature region of the weld are prevented from being oxidized, nitrided and the like. However, the efficiency of integrally filling the inert protective gas into the sliding rail sleeve barrel is low at present, the inert protective gas is greatly wasted, and meanwhile, because the operator works in the high-concentration inert protective gas environment for a long time, certain harm can be caused to the health of the operator. Therefore, how to provide an inert gas protection device and method for welding a sliding rail sleeve drain pipe joint, which improve the welding operation efficiency and further reduce the harm of inert protective gas to the health of operators on the premise of ensuring the inert gas protection effect in the welding process by reducing the filling amount of the inert protective gas is a technical problem to be solved urgently by the technical personnel in the field.
Disclosure of Invention
(1) Technical problem to be solved
The first aspect of the embodiment of the invention provides an inert gas protection device for welding a sliding rail sleeve drain pipe joint, which comprises a conical cover, a clamping rod and a gas pipe. On the premise of meeting the requirement of full protection of inert gas at the welding seam position of the inner cavity, the inert gas protection space is compressed as much as possible, the inert gas filling efficiency is improved, and the use amount of the inert gas is reduced.
The second aspect of the embodiment of the invention provides an inert gas protection method for welding a joint of a drain pipe of a sliding rail sleeve, which can obviously improve the inflation efficiency.
(2) Technical scheme
The first aspect of the embodiment of the invention provides an inert gas protection device for welding a sliding rail sleeve drain pipe joint, which comprises: the clamping device comprises a conical cover, a clamping rod and an air pipe; one end of the clamping rod is connected with the conical cover, and the other end of the clamping rod is connected with the driving device and is used for driving the conical cover to move under the driving of the driving device; one end of the air pipe is connected with the conical cover, and the other end of the air pipe is connected with an air source and used for inputting inert gas into the conical cover.
Further, the conical cover comprises a conical shell seat, a sealing ring belt and a clamping end;
the clamping end is of a hollow structure, one end of the clamping end is connected with the tip end of the conical structure of the conical shell seat, the other end of the clamping end is connected with the air pipe, and the clamping rod is clamped on the clamping end;
the sealing ring belt is of a circular truncated cone structure, and the upper end face of the circular truncated cone structure is wrapped on the conical surface of the conical shell seat.
Furthermore, one end of the hollow structure of the clamping end is provided with an internal thread, and the clamping end is connected with the air pipe through the internal thread.
Further, the inert gas protection device further comprises a sleeve fixing device used for fixing the sliding rail sleeve.
Further, the inert gas protection device also comprises a monitoring assembly for monitoring the contact condition of the conical cover and the sliding rail sleeve.
Further, the monitoring assembly comprises a camera and a light source, and the camera and the light source are arranged on the inner wall of the conical shell seat.
Furthermore, the diameter of the lower end face of the conical cover is 1.2-3 times of the diameter of the butt-joint girth weld of the sliding rail sleeve and the drain pipe joint.
The second aspect of the embodiment of the invention provides an inert gas protection method for welding a drain pipe joint of a sliding rail sleeve, which comprises the following steps:
fixing the slide rail sleeve and enabling the drain pipe joint to be in an upright and upward state;
one end of the clamping rod clamps and drives the conical cover to enable the conical cover to move to a specified position and to be in contact with the inner surface of the cylinder body of the sliding rail sleeve;
opening a gas source to enable inert gas to fill a conical space formed by the conical cover and the inner surface of the cylinder body of the sliding rail sleeve;
welding the drain pipe joint and the barrel of the sliding rail sleeve;
and after welding, closing the air source after lagging, so that the conical cover moves out of the inner cavity of the sliding rail sleeve.
(3) Advantageous effects
The invention limits the inert gas in a very small conical space through the conical cover, realizes the rapid inert gas protection of the welding line of the inner cavity of the drain pipe joint, obviously improves the inflation efficiency, greatly saves the use amount of the inert protective gas, and further lightens the harm of the high-concentration inert protective gas environment to operators; and the conical cover can accurately move to the welding position of the inner cavity of the sliding rail sleeve through the driving of the driving device and is tightly attached to the inner cavity of the sliding rail sleeve, so that the entering of outside air is further reduced, the concentration of inert gas in a conical space is favorably improved, and the welding quality is improved.
Meanwhile, compared with the prior art, the method has the advantages of simple operation process and good effect by matching with the inert gas protection device.
In addition, the conical cover has good universality and use flexibility, can be suitable for local inert gas protection of the inner cavity welding line of the annular pipe joint of various shapes such as cylindrical structures, tubular structures, shell structures, box structures and the like by matching with a driving device, and is particularly suitable for local inert gas protection of local welding of the inner cavity in a narrow space, so that the application range is wide.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments of the present invention will be briefly described below, and it is obvious that the drawings described below 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 creative efforts.
Fig. 1 is a schematic view of a typical structure of a sliding rail sleeve in the prior art.
Fig. 2 is a schematic structural diagram of an inert gas protection device applied to a sliding rail sleeve welding process according to a first aspect of an embodiment of the present invention.
Fig. 3 is a schematic diagram of a conical shroud in accordance with a first aspect of an embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a monitoring component in the first aspect of the embodiment of the present invention.
Fig. 5 is a schematic flow chart of a method for inert gas shielding according to a second aspect of an embodiment of the present invention.
In the figure: 1-a conical cover; 11-a conical shell seat; 12-a clamping end; 13-sealing the annulus; 14-internal screw thread; 15-a through hole; 2-a gas pipe joint; 3-clamping rods; 4-trachea; 5-a monitoring component; 51-a camera; 52-a light source; 6-sleeve fixing device, driving device 7 and air source 8.
Detailed Description
The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following detailed description of the embodiments and the accompanying drawings are provided to illustrate the principles of the invention and are not intended to limit the scope of the invention, i.e., the invention is not limited to the embodiments described, but covers any modifications, alterations, and improvements in the parts, components, and connections without departing from the spirit of the invention.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
The present application will be described in detail with reference to the accompanying examples and figures 2-5.
Referring to fig. 2, the inert gas protection device for welding the sliding rail sleeve drain pipe joint according to the first aspect of the embodiment of the invention comprises a conical cover 1, a clamping rod 3 and a gas pipe 4; one end of the clamping rod 3 is connected with the conical cover 1, and the other end of the clamping rod is connected with the driving device 7 and is used for driving the conical cover 1 to move under the driving of the driving device 7; one end of the air pipe 4 is connected with the conical cover 1, and the other end of the air pipe is connected with the air source 8 and used for inputting inert gas into the conical cover 1.
Referring to fig. 2, in the embodiment of the invention, inert gas is introduced for protection when the sliding rail sleeve barrel and the drain pipe joint are welded, so that the welding quality is improved; meanwhile, the actual situation that the inert protective gas is greatly wasted due to the fact that the efficiency of integrally filling the inert protective gas in the conventional sliding rail sleeve barrel is low is considered; the embodiment of the invention creatively utilizes the driving device 7 to drive the clamping rod 3 to move so as to drive the conical cover 1 to move inside and outside the sliding rail sleeve barrel, and utilizes a small space structure formed by the conical structure of the conical cover 1 to drive the sliding rail sleeve barrel and the joint of the drain pipe to the welding position under the movement of the clamping rod 3; finally, inert gas is input into the conical cover 1 from a gas source 8 through a gas pipe 4 for welding protection; the small space structure of the conical cover 1 can greatly reduce the using amount of inert protective gas and reduce the leakage amount of the inert gas, thereby reducing the harm of the inert gas to the body health of operators; in addition, the conical cover 1 and the sliding rail sleeve barrel body can be tightly connected, so that the leakage of inert gas is reduced, the concentration of the inert gas in the conical cover 1 can be ensured, the welding can be facilitated, and the welding quality is improved; and in the application, the clamping rod 3 can freely stretch out and draw back under the driving of the driving device 7, and the control process is simple, convenient and reliable.
It should be noted that, the driving device 7 may be selected from a robot, a numerical control system, and the like, and can be freely moved in a three-dimensional space, and the specific structure thereof should not be a limitation to the present application. The gas source 8 is typically an inert gas, which may include helium, neon, argon, etc., and the inert gas concentration should be no less than 99.99% to improve the welding quality.
Specifically, referring to FIG. 3, according to one embodiment of the present invention, the conical closure 1 may include a conical shell seat 11, a sealing band 13, and a clamping end 12; the clamping end 12 is a hollow structure, one end of the clamping end is connected with the tip end of the conical structure of the conical shell seat 11, the other end of the clamping end is connected with the air pipe 4, and the clamping rod 3 is clamped on the clamping end 12; the sealing ring belt 13 is in a circular truncated cone structure, and the upper end face of the circular truncated cone structure is wrapped on the conical surface of the conical shell seat 11. The conical cover 1 is designed into a conical structure, so that the inert gas is favorably gathered in the conical cover, the internal space is reduced, the using amount of the inert gas is reduced, and the pollution of the inert gas to the environment and the injury of operators can be reduced; when the driving device 7 drives the inner wall of the sliding rail sleeve, the arranged sealing ring belt 13 coated on the conical surface of the conical shell seat 11 can be tightly attached to the inner wall of the sliding rail sleeve by utilizing the characteristics of softness and high attaching tightness of the sealing ring belt 13, so that the leakage of inert gas and the entering of external air are reduced, the welding quality is further improved, the environmental pollution is reduced, and the safety of operators is protected.
Furthermore, considering that the temperature around the welding seam is high in the welding process, the sealing ring belt 13 can be made of high-temperature-resistant rubber, and meanwhile, the conical shell seat 11 and the sealing ring belt 13 can be glued by high-temperature glue, so that the high-temperature resistance of the conical cover 1 is improved.
Further, referring to fig. 3, one end of the hollow structure of the holding end 12 is provided with an internal thread 14, and the holding end 12 can be connected with the air tube 4 through the internal thread 14.
The inert gas protection device for welding the joint of the drain pipe of the sliding rail sleeve further comprises a sleeve fixing device 6 for fixing the sliding rail sleeve; the sliding rail sleeve barrel and the drain pipe joint are required to keep a stable position relation during welding, so that the sliding rail sleeve can be fixed by the sleeve fixing device 6 to ensure that the sliding rail sleeve barrel and the drain pipe joint do not move relatively in the welding process; meanwhile, the sliding rail sleeve is fixed by the sleeve fixing device 6, so that the welding position can be fixed and can not move, the conical cover 1 can be conveyed to a prefabricated position by the driving device 7, and the driving device 7 does not need to be adjusted to drive the conical cover 1 to be conveyed to the position during each welding.
The inert gas protection device for welding the drain pipe joint of the sliding rail sleeve further comprises a monitoring assembly 5, and the monitoring assembly 5 is used for monitoring the contact condition of the conical cover 1 and the sliding rail sleeve. The conical cover 1 is driven by the driving device 7 to inevitably produce slight deviation with the inner wall of the sliding rail sleeve in the laminating process, so that the conical cover 1 and the sliding rail sleeve can be monitored accurately by the monitoring assembly 5, the basis can be provided for workers, the workers operate the driving device 7 according to the deviation condition to adjust the laminating degree of the conical cover 1 and the sliding rail sleeve barrel, and the conical cover 1 and the sliding rail sleeve barrel can be ensured to be tightly laminated.
Further, referring to fig. 4, the monitoring assembly 5 may include a camera 51 and a light source 52, the camera 51 and the light source 52 being disposed on the inner wall of the conical housing seat 11. The light source 52 is used for providing brightness for the work of the camera 51, so that the normal image acquisition of the camera 51 is prevented from being influenced by the narrow space in the conical shell seat 11 and insufficient brightness, and the camera 51 can be transmitted to a subsequent processing device and a display device, such as a computer, so that the fitting condition of the conical cover 1 is displayed on the computer, and the observation and adjustment of operators are facilitated. Finally, the number of the cameras 51 and the light sources 52 depends on the actual requirement, which should not limit the present application, and as shown in fig. 4, three cameras 51 and three light sources 52 are respectively provided; meanwhile, the cameras 51 and the light sources 52 can be paired, so that each camera 51 can be ensured to have one light source 52 for light supplement. In practice, the monitoring assembly 5 may also be provided with necessary protective measures such as a protective shield.
Specifically, the diameter of the lower end face of the conical cover 1 is preferably designed to be 1.2 times to 3 times of the diameter of the butt girth weld of the sliding rail sleeve and the drain pipe joint, so that the butt girth weld of the drain pipe joint can be completely arranged in the conical space of the conical cover 1. In actual welding, the sliding rail sleeve barrel and the drain pipe joint are generally connected by girth welding, so the diameter of the lower end face of the conical cover 1 is designed to ensure that inert gas in the conical cover 1 can cover the welding area.
Referring to fig. 5, the inert gas shielding method for welding the sliding rail sleeve drain pipe joint according to the second aspect of the embodiment of the invention comprises the following steps:
fixing the sliding rail sleeve and enabling the drain pipe joint to be in an upright state;
one end of the clamping rod 3 clamps and drives the conical cover 1, so that the conical cover 1 moves to a specified position and is in contact with the inner surface of the cylinder body of the sliding rail sleeve;
starting a gas source 8 to enable inert gas to fill a conical space formed by the conical cover 1 and the inner surface of the cylinder body of the sliding rail sleeve;
welding the drain pipe joint and the barrel of the slide rail sleeve;
and after the welding is finished, closing the air source 8 to enable the conical cover 1 to move out of the inner cavity of the sliding rail sleeve.
The following describes a specific example of the inert gas shielding method for welding the sliding rail sleeve drain pipe joint according to the embodiment of the present invention, which is mainly completed by the following steps:
step 1, fixing a slide rail sleeve in a sleeve fixing device 6, and enabling a drainage pipe joint to be basically in an upright state;
and 4, performing annular splicing spot welding and welding of the drain pipe joint and the sliding rail sleeve barrel, ensuring that the assembly misalignment of an annular welding line is not more than 0.1 delta before welding, wherein delta is the wall thickness of a welding edge, and argon arc welding or laser welding is adopted for spot welding and welding.
And 5, stopping the gas source 8 after the lag is not less than 10s, starting the driving device 7 to enable the conical cover 1 to move out of the inner cavity of the sliding rail sleeve to complete the welding of the drainage pipe joint of the sliding rail sleeve, wherein the lag gas stopping is more favorable for preventing the welding line from being oxidized or nitrided and the like.
By verification, the inert gas protection method for welding the sliding rail sleeve drain pipe joint in the second aspect of the embodiment of the invention is applied to the inert gas protection device for welding the sliding rail sleeve drain pipe joint in the first aspect of the embodiment of the invention, so that the inert gas at the welding seam position of the inner cavity of the sliding rail sleeve can be quickly filled, the welding protection effect and the welding quality are ensured, the use amount of the inert gas is obviously reduced, the body health of operators is effectively protected, and the environmental pollution is reduced.
It should be clear that the embodiments in this specification are described in a progressive manner, and the same or similar parts in the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. For embodiments of the method, reference is made to the description of the apparatus embodiments in part. The present invention is not limited to the specific steps and structures described above and shown in the drawings. Also, a detailed description of known process techniques is omitted herein for the sake of brevity.
The above description is only an example of the present application and is not limited to the present application. Various modifications and alterations to this application will become apparent to those skilled in the art without departing from the scope of this invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims (8)
1. The utility model provides a slide rail sleeve drain pipe connects welding with inert gas protection device which characterized in that includes:
a conical cover;
one end of the clamping rod is connected with the conical cover, and the other end of the clamping rod is connected with the driving device and is used for driving the conical cover to move under the driving of the driving device;
and one end of the air pipe is connected with the conical cover, and the other end of the air pipe is connected with an air source and used for inputting inert gas into the conical cover.
2. The inert gas shield apparatus for welding a sliding track sleeve drain pipe joint of claim 1, wherein said conical cap comprises a conical housing seat, a sealing ring band, and a clamping end;
the clamping end is of a hollow structure, one end of the clamping end is connected with the tip end of the conical structure of the conical shell seat, the other end of the clamping end is connected with the air pipe, and the clamping rod is clamped on the clamping end;
the sealing ring belt is of a circular truncated cone structure, and the upper end face of the circular truncated cone structure is wrapped on the conical surface of the conical shell seat.
3. The inert gas shielding device for welding the joint of the slide rail sleeve drain pipe as claimed in claim 2, wherein one end of the hollow structure of the clamping end is provided with an internal thread, and the clamping end is connected with the gas pipe through the internal thread.
4. The inert gas shield apparatus for welding a sliding track sleeve drain pipe joint of claim 1, further comprising a sleeve securing means for securing said sliding track sleeve.
5. The inert gas shielding device for welding of sliding track sleeve drain pipe joints as claimed in claim 2, further comprising a monitoring assembly for monitoring contact of said conical cover with said sliding track sleeve.
6. The inert gas shielding device for welding of sliding rail sleeve drain pipe joints as claimed in claim 5, wherein said monitoring assembly comprises a camera and a light source, both of which are disposed at an end face position of said clamping rod adjacent to said conical shell seat.
7. The inert gas shielding device for welding the sliding rail sleeve drain pipe joint as claimed in claim 1, wherein the diameter of the lower end face of the conical cover is 1.5-3 times the diameter of the butt-joint girth weld of the sliding rail sleeve and the drain pipe joint.
8. An inert gas shielding method for welding a slide rail sleeve drain pipe joint, characterized in that the shielding device according to claim 1 is adopted, and comprises the following steps:
fixing the slide rail sleeve and enabling the drain pipe joint to be in an upright and upward state;
one end of the clamping rod clamps and drives the conical cover to enable the conical cover to move to a specified position and to be in contact with the inner surface of the cylinder body of the sliding rail sleeve;
opening a gas source to enable inert gas to fill a conical space formed by the conical cover and the inner surface of the cylinder body of the sliding rail sleeve;
welding the drain pipe joint and the barrel of the sliding rail sleeve;
and after welding, closing the air source after lagging, so that the conical cover moves out of the inner cavity of the sliding rail sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010283132.5A CN111168202A (en) | 2020-04-13 | 2020-04-13 | Inert gas protection device and method for welding slide rail sleeve drain pipe joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010283132.5A CN111168202A (en) | 2020-04-13 | 2020-04-13 | Inert gas protection device and method for welding slide rail sleeve drain pipe joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111168202A true CN111168202A (en) | 2020-05-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010283132.5A Pending CN111168202A (en) | 2020-04-13 | 2020-04-13 | Inert gas protection device and method for welding slide rail sleeve drain pipe joint |
Country Status (1)
| Country | Link |
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| CN (1) | CN111168202A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111730223A (en) * | 2020-08-27 | 2020-10-02 | 北京航天新风机械设备有限责任公司 | Laser welding flexible protection device and method |
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| CN201760723U (en) * | 2010-09-03 | 2011-03-16 | 中国国际海运集装箱(集团)股份有限公司 | Welding joint back face protection system for welding |
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| CN108838534A (en) * | 2018-07-23 | 2018-11-20 | 中国航空制造技术研究院 | A kind of aluminium alloy sliding rail sleeve laser soldering device and method |
| KR20180133667A (en) * | 2017-06-07 | 2018-12-17 | 삼성중공업 주식회사 | purging device for GTAW |
| CN109940312A (en) * | 2017-12-20 | 2019-06-28 | 南通中集罐式储运设备制造有限公司 | Tank case welding gas shielded device |
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2020
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201760723U (en) * | 2010-09-03 | 2011-03-16 | 中国国际海运集装箱(集团)股份有限公司 | Welding joint back face protection system for welding |
| KR20180133667A (en) * | 2017-06-07 | 2018-12-17 | 삼성중공업 주식회사 | purging device for GTAW |
| CN207289147U (en) * | 2017-09-12 | 2018-05-01 | 西安庄信新材料科技有限公司 | A kind of titanium alloy bicycle automatic welding protective device |
| CN207494761U (en) * | 2017-11-20 | 2018-06-15 | 昆山华恒焊接股份有限公司 | Carry on the back protective device and the welding back of the body protection system with back of the body protective device |
| CN109940312A (en) * | 2017-12-20 | 2019-06-28 | 南通中集罐式储运设备制造有限公司 | Tank case welding gas shielded device |
| CN108838534A (en) * | 2018-07-23 | 2018-11-20 | 中国航空制造技术研究院 | A kind of aluminium alloy sliding rail sleeve laser soldering device and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111730223A (en) * | 2020-08-27 | 2020-10-02 | 北京航天新风机械设备有限责任公司 | Laser welding flexible protection device and method |
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Application publication date: 20200519 |
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| RJ01 | Rejection of invention patent application after publication |