CN115354267A - Pipeline internal weld joint anticorrosion electric arc spraying device and using method thereof - Google Patents
Pipeline internal weld joint anticorrosion electric arc spraying device and using method thereof Download PDFInfo
- Publication number
- CN115354267A CN115354267A CN202210978542.0A CN202210978542A CN115354267A CN 115354267 A CN115354267 A CN 115354267A CN 202210978542 A CN202210978542 A CN 202210978542A CN 115354267 A CN115354267 A CN 115354267A
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- arc spraying
- electric arc
- pipeline
- spraying device
- fixedly connected
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
- C23C4/131—Wire arc spraying
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
- C23C4/14—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying for coating elongate material
- C23C4/16—Wires; Tubes
Abstract
The invention relates to the technical field of electric arc spraying, in particular to an anticorrosive electric arc spraying device for a welding line in a pipeline and application thereof. The device has avoided the bobbin to draw the condition appearance that drags the silk material, helps improving electric arc spraying quality, and then improves the anticorrosive effect of pipeline inner weld.
Description
Technical Field
The invention relates to the technical field of electric arc spraying, in particular to an anti-corrosion electric arc spraying device for a welding line in a pipeline and application thereof.
Background
Arc spraying is a technique of melting metal by burning an electric arc between two continuously fed wires, atomizing the molten metal with a high-speed gas flow, and accelerating the atomized metal particles to spray them toward a workpiece to form a coating layer. Arc spraying is one of the most commonly used thermal spraying methods in practical application projects such as steel structure corrosion prevention, wear resistance, and mechanical part maintenance. The existing electric arc spraying mechanism generally comprises a spray gun, a wire feeding mechanism, a power supply and an air injection system.
In the prior art, when two adjacent pipelines are connected, the pipelines are generally fixed by adopting a flange connection or welding mode, wherein the inner walls of the pipelines fixed by the welding mode have obvious welding seams, and the welding seams need to be sprayed in order to enhance the corrosion resistance of the inner walls of the pipelines, so that the service life of the pipelines is prolonged.
At present, the common mode is to use the electric arc spraying technology to carry out thermal spraying on the inner wall of the pipeline, however, because the inner space of the pipeline is narrow, an electric trolley (or a small robot) with a remote control function is needed to be adopted to carry the electric arc spraying mechanism to enter the inner part of the pipeline, and then the welding seam of the inner wall of the pipeline is processed. However, when the mechanical arm on the electric trolley carries the electric arc spraying mechanism to move along the circular path of the welding line, the wire is inevitably swung irregularly, and then the wire is easily scraped to a bulge on the inner wall of the pipeline, so that the wire is pulled apart; in addition, as the wire is wound on the winding drum, and the winding drum is movably arranged on the electric trolley, when the wire feeding mechanism on the electric arc spraying mechanism works, the wire can be pulled, and the winding drum is correspondingly rotated. However, when in actual use, because the arc spraying mechanism is rotatory along the welding seam route all the time, consequently whole device also can appear rocking to a certain extent, and then causes the bobbin to rotate along the direction of rolling silk material easily, draws the silk material in the reverse drawing promptly for the wire feeding mechanism in the arc spraying mechanism is difficult to supply the silk smoothly, finally influences the spraying quality.
Disclosure of Invention
The invention aims to provide an anti-corrosion electric arc spraying device for a welding line in a pipeline and application thereof.
The technical scheme for solving the technical problems is as follows:
the utility model provides an anticorrosive electric arc spraying device of welding seam in pipeline, includes electronic dolly and electric arc spraying mechanism, be provided with on the electronic dolly by rotatory drive assembly drive pivoted balance, electric arc spraying mechanism fixed connection is on the balance, the last thread feeding mechanism who is used for carrying the silk material to electric arc spraying mechanism that installs of balance, thread feeding mechanism include the bobbin and prevent gyration subassembly with bobbin matched with.
Furthermore, the wire feeding mechanism also comprises an upper case fixedly connected to the placing table and a main shaft positioned in the case, one end of the main shaft is fixedly connected with the inner wall of the case, a winding drum is movably sleeved on the main shaft, a wire is wound on the winding drum, and the free end of the wire penetrates through the side wall of the case and is connected with the electric arc spraying mechanism; the opening end cover of the case is provided with a cover body, and the anti-rotation assembly is arranged on the inner side wall of the cover body.
Further, prevent gyration subassembly including rotate the ratchet of connection on the lid inner wall and the activity set up on the lid inner wall and with ratchet matched with pawl, the ratchet sets up with the main shaft is with the center pin, the ratchet is just being equipped with the limiting plate to the one side of main shaft, the limiting plate is just being equipped with spacing post to the one side of main shaft, set up the spacing hole with spacing post looks adaptation on the bobbin.
Further, the inner wall of machine case and around evenly being provided with a plurality of first universal balls in the outside of main shaft, the limiting plate is just provided with a plurality of universal balls of second to the one side of main shaft, first universal ball and the universal ball of second are located the left and right sides of bobbin respectively, the ball of first universal ball and the universal ball of second all rolls the laminating with the terminal surface of bobbin.
Furthermore, the electric arc spraying mechanism comprises a spray gun body, a spray gun nozzle, a wire feeding assembly and wire feeding pipes positioned on the front side and the rear side of the spray gun body, one end of each wire feeding pipe is right opposite to the wire feeding assembly, and the other end of each wire feeding pipe (204) is right opposite to the output end of the wire feeding mechanism.
Furthermore, the rotation driving assembly comprises a box body and a driving motor fixedly installed inside the box body, and an output shaft of the driving motor is fixedly connected with one end of the swing table.
Furthermore, the lifting driving component is used for driving the rotary driving component to lift, and the lifting driving component is fixedly connected to the electric trolley.
Furthermore, the lifting driving assembly adopts an electric sliding table which is distributed along the vertical direction, a base of the electric sliding table is fixedly connected to the electric trolley, and a sliding block of the electric sliding table is fixedly connected with the box body.
Furthermore, the device also comprises a monitoring camera fixedly connected to the swing platform and used for shooting the picture of the inner wall of the pipeline.
The invention also provides the application of the anti-corrosion electric arc spraying device for the inner welding seam of the pipeline in the field of corrosion prevention of the inner welding seam of the pipeline, and the anti-corrosion effect of the inner welding seam of the pipeline is improved.
Compared with the prior art, the invention has the following advantages:
1. the wire feeding mechanism of the device is provided with the anti-rotation component for preventing the winding drum from rotating along the wire winding direction, and loose wires released by the winding drum are always positioned in the case, so that the device cannot cause the wires to randomly swing, the condition that the winding drum pulls the wires is avoided, the electric arc spraying quality is improved, and the anti-corrosion effect of welding seams in a pipeline is improved;
2. the height of the rotating axis of the swing table in the device is adjustable, so that the device can adapt to the inner diameters of pipelines with various specifications, and the distance between a nozzle of an electric arc spraying mechanism and a welding line is consistent, thereby being beneficial to further improving the spraying quality;
3. the device is also provided with a monitoring camera for shooting pictures of the inner wall of the pipeline, so that workers can conveniently judge whether the electric trolley reaches the position of the welding line.
Drawings
FIG. 1 is a schematic structural diagram according to a first embodiment of the present invention;
FIG. 2 is a schematic view of a cradle and an arc spraying mechanism according to a first embodiment of the invention;
FIG. 3 is a schematic view of a wire feeder according to a first embodiment of the present invention;
FIG. 4 is a front view of a ratchet structure according to a first embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a second embodiment of the present invention;
in the figure: 1. an electric trolley; 2. an electric arc spraying mechanism; 201. a spray gun body; 202. a spray gun nozzle; 203. a wire feeding assembly; 204. a wire feeding pipe; 3. placing a platform; 4. a rotary drive assembly; 401. a box body; 402. a drive motor; 5. a lift drive assembly; 6. a wire feeder; 601. a chassis; 602. a main shaft; 603. a bobbin; 604. a cover body; 605. silk material; 606. a ratchet wheel; 607. a pawl; 608. a limiting plate; 609. a limiting post; 610. a limiting hole; 611. a first universal ball; 612. a second universal ball; 613. a filament outlet part; 7. a monitoring camera.
Detailed Description
In order to make the aforementioned features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below, but the present invention is not limited thereto.
Embodiment one referring to fig. 1 to 4
The utility model provides an anticorrosive electric arc spraying device of welding seam in pipeline, includes electronic dolly 1 and electric arc spraying mechanism 2, be provided with on the electronic dolly 1 and drive the pivoted swing table by rotary driving subassembly 4, 5 fixed connection of electric arc spraying mechanism are on the upper portion of swing table 3, the lower part of swing table 3 is installed and is used for the wire feeding mechanism 6 of carrying the silk material to electric arc spraying mechanism, wire feeding mechanism include bobbin 603 and prevent gyration subassembly with bobbin matched with.
In this embodiment, the rotation driving assembly 4 further includes a box 401 and a driving motor 402 fixedly installed inside the box 401, the box 401 is fixedly installed at the front end of the electric trolley 1 in the forward direction, and an output shaft of the driving motor 402 is fixedly connected with one end of the swing table 3. Thus, the drive motor 402 can drive the swing table 3 to rotate, thereby moving the arc spraying mechanism 2 along the weld path.
In this embodiment, this anticorrosive electric arc spraying device of welding seam in pipeline still includes fixed connection at the surveillance camera 7 on 3 upper portions of balance table for shoot the pipeline inner wall picture, and will shoot the picture and transmit to outside receiver in real time, make things convenient for the staff to watch the pipeline inner wall condition, judge whether electric trolley 1 reachs the welding seam department.
In this embodiment, the wire feeding mechanism 6 includes an upper machine box 601 fixedly connected to the swing table 3 and a main shaft 602 located inside the machine box 601, one end of the main shaft 602 is fixedly connected to an inner wall of the machine box 601, a bobbin 603 is movably sleeved on the main shaft 602, a wire 605 is wound on the bobbin 603, and a free end of the wire 605 penetrates through a side wall of the machine box 601 and is connected to the arc spraying mechanism 2. Specifically, a filament outlet portion 613 penetrates through the side wall of the case 601, the filament outlet portion 613 is of a cylindrical structure, and two ends of the inside of the filament outlet portion 613 are both flared, so that a filament can smoothly pass through the filament outlet portion 613, and the filament can be prevented from being scratched.
In this embodiment, the arc spraying mechanism 2 includes a spray gun body 201, a spray gun nozzle 202, a wire feeding assembly 203, and wire feeding pipes 204 located at the front and rear sides of the spray gun body 201, wherein one end of the wire feeding pipe 204 faces the wire feeding assembly 203, and the other end of the wire feeding pipe 204 faces the wire outlet 613. In a particular use, the free end of the wire 605 is fed through the outlet 613 and inlet 204 tubes and finally into the torch body 201 by the inlet assembly 203.
In addition, it should be noted that, since the arc spraying mechanism 2 needs to feed two wires at the same time when in use, two sets of wire feeders 6 are also required in this embodiment.
In this embodiment, the open end cover of the case 601 is provided with a cover 604, and the anti-rotation assembly cover 604 matching with the bobbin 603 is disposed on the inner sidewall of the cover 604.
Specifically, the anti-rotation assembly comprises a ratchet 606 rotatably connected to the inner wall of the cover body 604 and a pawl 607 movably arranged on the inner wall of the cover body 604 and matched with the ratchet 606, the ratchet 606 and the main shaft 602 are coaxially arranged, a limiting plate 608 is arranged on one side of the ratchet 606, which faces the main shaft 602, a limiting column 609 is arranged on one side of the limiting plate (608), which faces the main shaft 602, and a limiting hole 610 matched with the limiting column 609 is formed in the winding drum 603. In use, the retaining post 609 penetrates through the retaining hole 610. Thus, the bobbin 603 can rotate synchronously with the ratchet 606, but due to the ratchet 606, the bobbin 603 cannot rotate in the opposite direction, i.e. the bobbin 603 can only rotate around the main shaft 602 in the direction of releasing the wire.
In this embodiment, first universal balls 611 are uniformly arranged on the inner wall of the case 601 and around the outer portion of the main shaft 602, a plurality of second universal balls 612 are arranged on the surface of the limiting plate 608 facing the main shaft 602, the first universal balls 611 and the second universal balls 612 are respectively located on the left side and the right side of the bobbin 603, and the balls of the first universal balls 611 and the second universal balls 612 are both in rolling fit with the end surface of the bobbin 603. Thereby improving the stability of the rotation of the bobbin 603, avoiding the left and right shaking of the bobbin and improving the wire feeding quality.
Example II reference is made to FIG. 5
The difference between the present embodiment and the first embodiment is: the anti-corrosion electric arc spraying device for the welding line in the pipeline further comprises a lifting driving component 5 for driving the rotary driving component 4 to lift, and the lifting driving component 5 is fixedly connected to the front end of the electric trolley 1 in the running direction.
Specifically, lift drive assembly 5 adopts electronic slip table, electronic slip table is along vertical distribution, the base fixed connection of electronic slip table is at the front end of 1 direction of travel of electronic dolly, the slider and the box body 401 fixed connection of electronic slip table. Therefore, the electric sliding table can directly drive the swing table 3 to lift, so that the rotating axis of the swing table 3 is superposed with the axis of the inner diameter of the pipeline, the pipeline of various specifications can be adapted to the embodiment, and the universality of the embodiment is improved.
An application method of an anti-corrosion electric arc spraying device for a welding line in a pipeline applies the anti-corrosion electric arc spraying device for the welding line in the pipeline to the field of anti-corrosion of the welding line in the pipeline. In the specific using process:
firstly, the bobbin 603 is sleeved on the main shaft 602; then, the free end of the wire 605 is drawn out again, the free end of the wire 605 is made to pass through the wire outlet part 613 and the wire inlet pipe 204 in sequence, then the wire 605 is made to pass through the wire inlet assembly 203 and enter the spray gun body 201, finally, the cover body 604 is covered again, and the limiting column 609 is made to be inserted into the limiting hole 610. When the electric trolley 1 walks in the pipeline, the monitoring camera 7 shoots the information of the inner wall of the pipeline in real time, so that a worker can conveniently judge whether the trolley reaches the position of a welding seam; when the electric trolley 1 reaches the position of the welding seam and the electric arc spraying mechanism 2 is aligned with the welding seam, the electric arc spraying mechanism 2 and the driving motor 402 are started, the driving motor 402 is used for driving the swing table 3 to rotate, and then the electric arc spraying mechanism 2 rotates around the path of the welding seam to realize uniform spraying. In addition, because the wire feeder 6 and the arc spraying mechanism 2 in this embodiment are both arranged on the swing table 3, and the distance between the wire feeding pipe 204 and the wire feeder 6 is very narrow, the wire 605 will not swing, that is, the wire 605 will not be scratched against the inner wall of the pipeline, and the wire 605 will not be torn off.
It will be apparent to those skilled in the art that the foregoing is merely a preferred embodiment of the present invention, and that various changes, modifications, substitutions and alterations can be made in the arc spraying apparatus for preventing corrosion of a weld joint in a pipe without inventive step, without departing from the spirit and scope of the invention.
Claims (10)
1. The utility model provides an anticorrosive electric arc spraying device of welding seam in pipeline, includes electronic dolly (1) and electric arc spraying mechanism (2), its characterized in that, be provided with on electronic dolly (1) by rotatory drive assembly (4) drive pivoted pendulum platform, electric arc spraying mechanism (2) fixed connection is on pendulum platform (3), install feed mechanism (6) that are used for carrying the silk material to electric arc spraying mechanism on pendulum platform (3), feed mechanism (6) including bobbin (603) and with bobbin (603) matched with prevent gyration subassembly.
2. The anticorrosive electric arc spraying device for the weld joints in the pipelines according to claim 1, characterized in that the wire feeder (6) further comprises an upper machine box (601) fixedly connected to the swing table (3) and a main shaft (602) positioned inside the machine box (601), one end of the main shaft (602) is fixedly connected with the inner wall of the machine box (601), a winding drum (603) is movably sleeved on the main shaft (602), a wire material (605) is wound on the winding drum (603), and the free end of the wire material (605) penetrates through the side wall of the machine box (601) and is connected with the electric arc spraying mechanism (2); an opening end cover of the case (601) is provided with a cover body (604), and the anti-rotation assembly is arranged on the inner side wall of the cover body (604).
3. The anti-corrosion electric arc spraying device for the weld joint in the pipeline as claimed in claim 2, wherein the anti-rotation assembly comprises a ratchet (606) rotatably connected to the inner wall of the cover body (604) and a pawl (607) movably arranged on the inner wall of the cover body (604) and matched with the ratchet (606), the ratchet (606) and the spindle (602) are arranged on the same central axis, one surface of the ratchet (606) opposite to the spindle (602) is provided with a limiting plate (608), one surface of the limiting plate (608) opposite to the spindle (602) is provided with a limiting post (609), and the winding reel (603) is provided with a limiting hole (610) matched with the limiting post (609).
4. The anticorrosive electric arc spraying device of weld joint in pipeline of claim 3, characterized in that, the inner wall of machine case (601) and around the outside of main shaft (602) evenly is provided with a plurality of first universal balls (611), the limit plate (608) is provided with a plurality of second universal balls (612) just to the one side of main shaft (602), first universal ball (611) and second universal ball (612) are located the left and right sides of bobbin (603) respectively, the ball of first universal ball (611) and second universal ball (612) all rolls with the terminal surface of bobbin (603) and laminates.
5. The in-pipeline welding seam anticorrosion electric arc spraying device according to claim 1, 2, 3 or 4, wherein the electric arc spraying mechanism (2) comprises a spray gun body (201), a spray gun nozzle (202), a wire feeding assembly (203) and wire feeding pipes (204) positioned at the front side and the rear side of the spray gun body (201), one end of each wire feeding pipe (204) is opposite to the wire feeding assembly (203), and the other end of each wire feeding pipe (204) is opposite to the output end of the wire feeding mechanism (6).
6. The anti-corrosion electric arc spraying device for the weld joint in the pipeline as claimed in claim 1, wherein the rotary driving assembly (4) comprises a box body (401) and a driving motor (402) fixedly installed inside the box body (401), and an output shaft of the driving motor (402) is fixedly connected with one end of the swing table (3).
7. The electric arc spraying device for corrosion prevention of the welding line in the pipeline according to the claim 1, 2, 3, 4 or 6, characterized by further comprising a lifting driving component (5) for driving the rotary driving component (4) to lift, wherein the lifting driving component (5) is fixedly connected to the electric trolley (1).
8. The anticorrosive arc spraying device for the weld joints in the pipelines according to claim 7, wherein the lifting driving assembly (5) adopts an electric sliding table which is vertically distributed, a base of the electric sliding table is fixedly connected to the electric trolley (1), and a sliding block of the electric sliding table is fixedly connected with the box body (401).
9. The anticorrosive arc spraying device for the weld joint in the pipeline according to claim 1, further comprising a monitoring camera (7) fixedly connected to the swing table (3) and used for shooting a picture of the inner wall of the pipeline.
10. The application of the corrosion-resistant electric arc spraying device for the weld joint in the pipeline as claimed in any one of claims 1 to 9 in the field of corrosion resistance of the weld joint in the pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210978542.0A CN115354267A (en) | 2022-08-16 | 2022-08-16 | Pipeline internal weld joint anticorrosion electric arc spraying device and using method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210978542.0A CN115354267A (en) | 2022-08-16 | 2022-08-16 | Pipeline internal weld joint anticorrosion electric arc spraying device and using method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN115354267A true CN115354267A (en) | 2022-11-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210978542.0A Pending CN115354267A (en) | 2022-08-16 | 2022-08-16 | Pipeline internal weld joint anticorrosion electric arc spraying device and using method thereof |
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| CN (1) | CN115354267A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1197663A (en) * | 1968-05-14 | 1970-07-08 | Coal Industry Patents Ltd | Metal Spraying Apparatus. |
| JP2003171754A (en) * | 2001-12-03 | 2003-06-20 | Tocalo Co Ltd | Thermal spraying method on cylindrical inner surface, and cylinder block manufactured by the thermal spraying method |
| US20070069042A1 (en) * | 2005-09-29 | 2007-03-29 | Daihen Corporation | Electric arc spraying system |
| CN209334018U (en) * | 2019-06-03 | 2019-09-03 | 段林峰 | A kind of tower spray equipment |
| CN110712081A (en) * | 2019-11-18 | 2020-01-21 | 湖南湘鹤集团电缆科技股份有限公司 | Copper line drawing machine is used in production of mineral substance insulation fireproof cable |
| CN213967358U (en) * | 2020-11-20 | 2021-08-17 | 浙江精星物流设备有限公司 | Metal pipeline inner wall electric arc spraying composite set |
| CN214107604U (en) * | 2020-10-28 | 2021-09-03 | 佛山科喆机械制造有限公司 | Intelligent electric arc flush coater |
| CN214211056U (en) * | 2020-12-29 | 2021-09-17 | 北京扬奇工程技术有限公司 | Powder spraying device for joint coating of epoxy powder of inner welding seam of pipeline |
| CN214300308U (en) * | 2021-01-26 | 2021-09-28 | 西咸新区勃兴科技工程有限公司 | Novel electric arc spraying equipment |
| CN214655190U (en) * | 2021-03-03 | 2021-11-09 | 砀山智联节能塑业有限公司 | Wire feeding frame |
-
2022
- 2022-08-16 CN CN202210978542.0A patent/CN115354267A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1197663A (en) * | 1968-05-14 | 1970-07-08 | Coal Industry Patents Ltd | Metal Spraying Apparatus. |
| JP2003171754A (en) * | 2001-12-03 | 2003-06-20 | Tocalo Co Ltd | Thermal spraying method on cylindrical inner surface, and cylinder block manufactured by the thermal spraying method |
| US20070069042A1 (en) * | 2005-09-29 | 2007-03-29 | Daihen Corporation | Electric arc spraying system |
| CN209334018U (en) * | 2019-06-03 | 2019-09-03 | 段林峰 | A kind of tower spray equipment |
| CN110712081A (en) * | 2019-11-18 | 2020-01-21 | 湖南湘鹤集团电缆科技股份有限公司 | Copper line drawing machine is used in production of mineral substance insulation fireproof cable |
| CN214107604U (en) * | 2020-10-28 | 2021-09-03 | 佛山科喆机械制造有限公司 | Intelligent electric arc flush coater |
| CN213967358U (en) * | 2020-11-20 | 2021-08-17 | 浙江精星物流设备有限公司 | Metal pipeline inner wall electric arc spraying composite set |
| CN214211056U (en) * | 2020-12-29 | 2021-09-17 | 北京扬奇工程技术有限公司 | Powder spraying device for joint coating of epoxy powder of inner welding seam of pipeline |
| CN214300308U (en) * | 2021-01-26 | 2021-09-28 | 西咸新区勃兴科技工程有限公司 | Novel electric arc spraying equipment |
| CN214655190U (en) * | 2021-03-03 | 2021-11-09 | 砀山智联节能塑业有限公司 | Wire feeding frame |
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