CN216947246U - A device is executed and plates to pipeline inner wall coating for different internal diameters - Google Patents
A device is executed and plates to pipeline inner wall coating for different internal diameters Download PDFInfo
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- CN216947246U CN216947246U CN202221180080.XU CN202221180080U CN216947246U CN 216947246 U CN216947246 U CN 216947246U CN 202221180080 U CN202221180080 U CN 202221180080U CN 216947246 U CN216947246 U CN 216947246U
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Abstract
The utility model relates to the technical field of pipeline protection, in particular to a device for plating inner wall coatings of pipelines with different inner diameters. The device includes the power, the transfer line, the front end baffle, the negative pole line, a motor, lock nut, acrylic fibres brush plating cloth, insulating rubber cover, deep groove ball bearing, drive mechanism, the box is retrieved to the plating bath, the rear end baffle, the main shaft, the telescopic link, positive pole graphite brush head, a spring, connect the hinge, the sleeve, the feed pump, the positive pole line, bounce through the spring and the supplementary fixed messenger positive pole graphite brush head of telescopic link are hugged closely and are waited to plate the pipeline inner wall, make the device steady operation in waiting to plate the pipeline under motor and drive mechanism's effect, thereby prepare out the sedimentary deposit that protective properties is better. The device provided by the utility model can prepare the protective deposition layer on the inner wall surfaces of the pipelines with different inner diameters, and is particularly suitable for the protection of the inner wall surfaces of the pipelines with different inner diameters.
Description
Technical Field
The utility model relates to the technical field of pipeline protection, in particular to a device for plating inner wall coatings of pipelines with different inner diameters.
Background
In the rapid development of social economy, pipeline transportation is an important way for transporting energy such as liquid, gas and the like. Due to the chemical and physical characteristics of the transported substances and the phenomena of erosion of the transported substances on the inner wall of the pipeline and the like, certain damage to the inner wall of the pipeline is inevitable, the quality of the transported substances is influenced, and the normal use of the pipeline and the transported substances is influenced in severe cases. Therefore, it is important to enhance the protection of the inner wall of the pipeline.
The inner wall protection of the pipeline usually adopts an electrodeposition method, a lining method, a spraying method and a digging and disassembling method, but the methods have certain defects or shortcomings to some extent, such as: the electrodeposition method neglects the phenomenon that the anode is difficult to extend into the cathode pipeline and the anode is easy to be passivated when the difference of the areas of the cathode and the anode is too large; the lining method only adds the lining in the pipeline, and a gap still exists between the lining and the inner wall of the pipeline, so that the inner wall of the pipeline can be corroded when the transport fluid passes through the gap; the method of digging out and disassembling the pipeline requires a great deal of effort. In addition, the protection of pipelines with different inner diameters also has the problems of low efficiency, high maintenance cost, complex process and the like.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a device for plating inner wall coatings of pipelines with different inner diameters, aiming at the problems that the inner wall surfaces of the pipelines are difficult to plate coatings, particularly the inner wall surfaces of the pipelines with different inner diameters are difficult to plate by using the same device, and the like.
In order to achieve the purpose, the technical scheme of the utility model is as follows:
the utility model provides a device is executed with strong authority to pipeline inner wall coating for different internal diameters, includes the main shaft that sets up along the level, the relative parallel arrangement in main shaft both ends outside is along the rear end baffle of vertical setting and along the front end baffle of vertical setting, and rear end baffle, front end baffle are the external diameter and wait to plate cylindrical just seting up the centre bore that the pipeline inner wall matches, wherein: one end of the main shaft is directly connected with a motor, the motor is a chargeable motor which can rotate forward and backward, the motor is fixedly connected to a motor base, and the motor base is fixedly connected to a central hole of the rear baffle; the other end of the main shaft is connected with a deep groove ball bearing, the deep groove ball bearing is arranged on a bearing block, and the bearing block is fixedly connected with a central hole of the front baffle;
the two sides of the main shaft are symmetrically provided with four telescopic rods, one end of each telescopic rod is connected with the main shaft through a hinge, the other ends of the two telescopic rods positioned on one side surface of the main shaft are respectively connected with two ends of one horizontally arranged anode graphite brush head through hinges, the other ends of the two telescopic rods positioned on the other side surface of the main shaft are respectively connected with two ends of the other horizontally arranged anode graphite brush head through hinges, and the two anode graphite brush heads are symmetrically arranged on two sides of the main shaft and respectively correspond to the inner wall of a pipeline to be plated; two springs are symmetrically arranged on two side surfaces of the main shaft, wherein: one end of a spring is connected with the main shaft, and the other end of the spring is fixedly connected with the back of an anode graphite brush head; one end of the other spring is connected with the main shaft, and the other end of the spring is fixedly connected with the back surface of the other anode graphite brush head.
The device for plating the coatings on the inner walls of the pipelines with different inner diameters is characterized in that one surface of the anode graphite brush head, which corresponds to the inner wall of the pipeline to be plated, is provided with uniformly distributed plating solution supply holes, the surface of the anode graphite brush head, which is provided with the plating solution supply holes, is wrapped by acrylic fiber brush plating cloth, and the anode graphite brush head is connected with a liquid supply pump through a liquid conveying pipe; the infusion tube comprises a main infusion tube and a branch infusion tube, one side of the anode graphite brush head, which is connected with the spring, is connected with the branch infusion tube of the infusion tube, one side of the anode graphite brush head, which is connected with the branch infusion tube, is wrapped by an insulating rubber sleeve, one end of the branch infusion tube is communicated with the inner cavity of one anode graphite brush head, and the other end of the branch infusion tube is communicated with the inner cavity of the other anode graphite brush head; the main infusion tube sequentially passes through the motor base, the motor and the central hole of the main shaft, one end of the main infusion tube is connected with a liquid supply pump arranged in the plating solution, and the other end of the main infusion tube is vertical to the branch infusion tubes and is communicated with the middle hole of the branch infusion tubes.
The main shaft is provided with a sleeve, and the sleeve moves on the main shaft along the axial direction; when the device is in non-working time, the sleeve is positioned on the anode graphite brush head to tightly press the anode graphite brush head and the spring; when the device works, the sleeve moves to the motor base from the anode graphite brush head, and the anode graphite brush head is bounced through the spring, so that the acrylic fiber brush-plating cloth wrapped on the anode graphite brush head is tightly attached to the inner wall of the pipeline to be plated.
The device for plating the inner wall coatings of the pipelines with different inner diameters is characterized in that one end, close to a power supply, of the anode graphite brush head is connected with an anode wire, and two ends of the anode wire are respectively connected with the positive electrode of the power supply and the anode graphite brush head, so that the anode graphite brush head is used as an anode; the negative pole of the power supply is fixedly connected with the pipeline to be plated through a cathode wire, so that the pipeline to be plated serves as a cathode.
The coating plating device for the inner walls of the pipelines with different inner diameters is characterized in that the outer end of a bearing seat is connected with a traction mechanism through a steel wire rope, a front end baffle and a rear end baffle correspond to the inner wall of the pipeline to be plated respectively and are in interference fit, and a plating solution recovery box is arranged below one side, close to the front end baffle, outside the pipeline to be plated.
The device for plating the inner wall coatings of the pipelines with different inner diameters is characterized in that the telescopic rod is provided with a locking nut.
Compared with the prior art, the device for plating the inner wall coatings of the pipelines with different inner diameters has the following advantages and beneficial effects:
(1) the device for coating the inner wall of the pipeline can realize the preparation of the inner wall coatings of the pipelines with different pipe diameters in a limit range according to the bounced limit and the compressed limit of the spring, so that the inner wall of the pipeline is protected, and the service life of the pipeline is prolonged.
(2) This device is plated to pipeline inner wall coating is executed can retrieve pipeline inner wall remaining liquid and the produced waste liquid of executing after plating through the baffle of back both sides, and green avoids the polluted environment.
(3) The device for coating the inner wall of the pipeline can adapt to pipelines with longer distance and pipelines with different pipe diameters, and is uniform, convenient and fast to coat.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is an enlarged view of fig. 1 at a.
Fig. 3 is an enlarged view of fig. 1 at B.
In the figure: 1. a power source; 2. an infusion tube (201 main infusion tubes and 202 infusion tubes); 3. a rear end baffle; 4. a cathode line; 5. an electric motor; 6. locking the nut; 7. brushing and plating acrylic fibers; 8. an insulating rubber sleeve; 9. a deep groove ball bearing; 10. a bearing seat; 11. a traction mechanism; 12. a plating solution recovery box; 13. a pipe to be plated; 14. a front end baffle; 15. a main shaft; 16. a telescopic rod; 17. an anode graphite brush head; 18. a spring; 19. a hinge; 20. a sleeve; 21. a motor mount; 22. applying a plating solution; 23. a liquid supply pump; 24. an anode wire; 25 plating solution supply holes.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description thereof.
Referring to fig. 1-3, the device for coating the inner wall of the pipe with different inner diameters mainly comprises a main shaft 15 horizontally arranged, a rear baffle 3 vertically arranged and a front baffle 14 vertically arranged are arranged in parallel at the outer sides of two ends of the main shaft 15, the rear baffle 3 and the front baffle 14 are cylindrical and provided with central holes, the outer diameters of the rear baffle 3 and the front baffle 14 are matched with the inner wall of the pipe to be coated 13, and the central holes are arranged on the cylindrical holes, wherein: one end of the main shaft 15 is directly connected with the motor 5, the motor 5 is a rechargeable micro motor capable of rotating forward and backward, the motor 5 is fixedly connected to the motor base 21, and the motor base 21 is fixedly connected with a central hole of the rear baffle 3; the other end of the main shaft 15 is connected with the deep groove ball bearing 9, the deep groove ball bearing 9 is installed on a bearing seat 10, and the bearing seat 10 is fixedly connected with a central hole of the front baffle 14.
In the embodiment, the main shaft 15 is driven to rotate by the motor 5 which can rotate forward and backward, the motor 5 rotates forward 180 degrees and then rotates backward 180 degrees, and the coating is uniformly coated and the liquid supply of the liquid conveying pipe 2 is stable due to reciprocating circulation. The outer end of the bearing seat 10 is connected with a traction mechanism 11 through a steel wire rope, and the device is driven by the traction mechanism 11 to stably run on the inner wall of the pipeline 13 to be plated along the axial direction. The front end baffle 14 and the rear end baffle 3 correspond to the inner wall of the pipeline 13 to be plated and are in interference fit with each other, the plating solution recovery box 12 is arranged below one side, close to the front end baffle 14, of the pipeline 13 to be plated, the residual plating solution 22 in the working process of the device can be taken out of the pipeline 13 to be plated under the driving of the traction mechanism 11, the plating solution recovery box 12 is utilized for recovery, and the residual plating solution 22 is prevented from polluting the environment.
Referring to fig. 1 and 3, four telescopic rods 16 are symmetrically arranged on two sides of a main shaft 15, one end of each telescopic rod 16 is connected with the main shaft 15 through a hinge 19, the other ends of two telescopic rods 16 positioned on one side of the main shaft 15 are respectively connected with two ends of a horizontally arranged anode graphite brush head 17 through hinges 19, the other ends of two telescopic rods 16 positioned on the other side of the main shaft 15 are respectively connected with two ends of another horizontally arranged anode graphite brush head 17 through hinges 19, and the two anode graphite brush heads 17 are symmetrically arranged on two sides of the main shaft 15 and respectively correspond to the inner wall of a pipeline 13 to be plated; two springs 18 are symmetrically arranged on two side surfaces of the main shaft 15, wherein: one end of a spring is connected with the main shaft 15, and the other end of the spring is fixedly connected with the back of an anode graphite brush head; one end of the other spring is connected with the main shaft 15, and the other end of the spring is fixedly connected with the back surface of the other anode graphite brush head; the two anode graphite brush heads 17 are simultaneously bounced and contracted under the action of the telescopic rods 16 and the springs 18, and the bounced height is mainly limited by the pipe diameter of the pipeline 13 to be plated and the springs 18.
In this embodiment, the telescopic rod 16 is provided with a locking nut 6. It should be noted that, after the telescopic rod 16 is extended, the locking nut 6 is manually screwed down to ensure the stability of the telescopic rod 16.
Referring to fig. 1 and 2, one surface of the anode graphite brush head 17 corresponding to the inner wall of the pipeline to be plated 13 is provided with plating solution supply holes 25 which are uniformly distributed, one surface of the anode graphite brush head 17 provided with the plating solution supply holes 25 is wrapped by acrylic brush plating cloth 7, and two ends of the liquid transport tube 2 are respectively connected with a liquid supply pump 23 and the anode graphite brush head 17; the infusion tube 2 comprises a main infusion tube 201 and a branch infusion tube 202, one side of the anode graphite brush head 17 connected with the spring 18 is connected with the branch infusion tube 202 of the infusion tube 2, one side of the anode graphite brush head 17 connected with the branch infusion tube 202 is wrapped by the insulating rubber sleeve 8, one end of the branch infusion tube 202 is communicated with the inner cavity of one anode graphite brush head 17, and the other end of the branch infusion tube 202 is communicated with the inner cavity of the other anode graphite brush head; the main infusion tube 201 sequentially passes through the motor base 21, the motor 5 and the central hole of the main shaft 15, one end of the main infusion tube 201 is connected with a liquid supply pump 23 arranged in the plating solution 22, the liquid supply pump 23 can supply the plating solution 22 for the anode graphite brush head 17, and the other end of the main infusion tube 201 is perpendicular to the branch infusion tube 202 and is communicated with the central hole of the branch infusion tube 202. The main infusion tube 201 and the branch infusion tube 202 are both flexible tubes. One end of the anode graphite brush head 17 close to the power supply 1 is connected with an anode wire 24, and two ends of the anode wire 24 are respectively connected with the anode of the power supply 1 and the anode graphite brush head 17, so that the anode graphite brush head 17 is used as an anode; the negative pole of the power supply 1 is fixedly connected with the pipeline 13 to be plated through the cathode wire 4, so that the pipeline 13 to be plated is used as a cathode.
In this embodiment, the upper layer of the anode graphite brush head 17 is wrapped with the acrylic brush plating cloth 7, the lower layer of the anode graphite brush head 17 is wrapped with the insulating rubber sleeve 8, and the insulating rubber sleeve 8 is used for preventing the spring 18 from conducting electricity. The acrylic brush plating cloth 7 corresponds to a plating bath tank for storing a plating solution.
Referring to fig. 1, the spindle 15 is provided with a sleeve 20, and the sleeve 20 is axially movable on the spindle 15. It should be noted that, during the non-operation time of the device, the sleeve 20 is positioned on the anode graphite brush head 17 to press the anode graphite brush head 17 and the spring 18; while the device is in operation, it is necessary to remove the sleeve 20. The sleeve 20 enables the pipe inner wall coating plating apparatus of the present invention to remain in a compressed state when entering the pipe 13 to be plated, making the apparatus easier to enter the pipe 13 to be plated. The sleeve 20 is moved to the motor base 21 from the anode graphite brush head 17, the anode graphite brush head 17 is bounced up through the spring 18, the acrylic fiber brush plating cloth 7 is enabled to be tightly attached to the inner wall of the pipeline 13 to be plated, the anode graphite brush head 17 is lifted, the length of the telescopic rod 16 is changed along with the lifting, the locking nut 6 is screwed, and the length of the telescopic rod 16 is fixed, so that the device is more stable in the plating process.
The working principle of the device for plating the coatings on the inner walls of the pipelines with different inner diameters comprises the following steps:
when plating is required, the device is placed at one end of the pipe to be plated 13, a user manually moves the sleeve 20 from the anode graphite brush head 17 to the motor base 21, the sleeve 20 plays a role of pressing the spring 18 during the non-working time of the device, and the spring 18 bounces to enable the anode graphite brush head 17 to be tightly attached to the inner wall of the pipe to be plated 13 along with the movement of the sleeve 20. Along with the spring 18 bounces, the length of the telescopic rod 16 also changes, and a user manually tightens the locking nut 6 to enable the length of the telescopic rod 16 to be fixed, so that the device is stable and reliable in working.
The anode of the power supply 1 is fixedly connected with an anode graphite brush head 17 through an anode wire 24 to be used as an anode; the negative pole of the power supply 1 is fixedly connected with the pipeline 13 to be plated through the cathode wire 4, so that the pipeline 13 to be plated is used as a cathode. The prepared plating solution 22 enters the liquid conveying pipe 2 through the liquid supply pump 23, and the plating solution 22 flows out from the plating solution supply hole 25 on the anode graphite brush head 17 through the liquid conveying pipe 2. The plating solution supply holes 25 are uniformly arranged on the anode graphite brush head 17, so that the flowing plating solution 22 uniformly wets the acrylic fiber brush plating cloth 7. The anode graphite brush head 17 and the telescopic rod 16 and the spring 18 are separated by the insulating rubber 8 to prevent electric conduction. When the acrylic fiber brush-plating cloth 7 is completely soaked, the supply of the plating solution 22 is stopped; after the acrylic brush-plating cloth 7 is worked for a period of time and the plating solution 22 on the acrylic brush-plating cloth 7 is completely consumed, the solution supply pump 23 is opened again to supply the plating solution 22, and the cycle is repeated.
And starting the motor 5 to drive the main shaft 15 to rotate, wherein one end of the main shaft 15 is in transmission connection by adopting the deep groove ball bearing 9, so that the acrylic fiber brush plating cloth 7 moves along the inner wall of the pipeline 13 to be plated. The motor 5 rotates forwards 180 degrees first and then rotates backwards 180 degrees to circulate in a reciprocating way, so that the uniform plating and the stability of the anode wire 24 and the infusion tube 2 are ensured. And starting the traction mechanism 11, and pulling the device to move axially along the pipe to be plated 13 at a constant speed on the inner wall of the pipe to be plated 13. The front end baffle 14 and the rear end baffle 3 are used for supporting the main shaft 15 and pushing the plating solution 22 remained on the inner wall of the pipeline 13 to be plated out of the pipeline 13 to be plated, and the plating solution 22 is recovered by the plating solution recovery box 12, so that the environment pollution is avoided.
The result shows that the utility model provides the device for plating the coatings on the inner walls of the pipelines with different inner diameters, the anode graphite brush head is tightly attached to the inner wall of the pipeline through the bounce of the spring and the auxiliary fixation of the telescopic rod, the device is stably operated in the pipeline under the action of the motor and the traction mechanism, protective settled layers with good performance can be prepared on the surfaces of the inner walls of the pipelines with different inner diameters, and the device can also be used for strengthening the surfaces of the inner walls of hydraulic cylinders with different inner diameters in large-scale hoisting equipment, so that the service life of the hydraulic cylinders is prolonged.
The utility model adopts specific examples to explain the principle and the implementation method of the utility model in detail, and the description of the above examples is only used for helping to understand the method and the core of the idea of the utility model; meanwhile, the technical personnel in the field and the idea of the utility model can change the concrete implementation mode and the application range. In view of the foregoing, it is intended that the present disclosure not be construed as limiting the utility model and that any modifications thereto by those skilled in the art without departing from the principles of the utility model are also to be considered as within the scope of the utility model.
Claims (6)
1. The utility model provides a device is executed with strong authority to pipe inner wall coating for different internal diameters, a serial communication port, include the main shaft that sets up along the level, the relative parallel arrangement in main shaft both ends outside is along the rear end baffle of vertical setting and along the front end baffle of vertical setting, and rear end baffle, front end baffle are the external diameter and treat that the pipe inner wall matches cylindrical just set up the centre bore, wherein: one end of the main shaft is directly connected with a motor, the motor is a chargeable motor which can rotate forward and backward, the motor is fixedly connected to a motor base, and the motor base is fixedly connected to a central hole of the rear end baffle; the other end of the main shaft is connected with a deep groove ball bearing, the deep groove ball bearing is arranged on a bearing seat, and the bearing seat is fixedly connected with a central hole of the front end baffle;
the two sides of the main shaft are symmetrically provided with four telescopic rods, one end of each telescopic rod is connected with the main shaft through a hinge, the other ends of the two telescopic rods positioned on one side surface of the main shaft are respectively connected with two ends of one horizontally arranged anode graphite brush head through hinges, the other ends of the two telescopic rods positioned on the other side surface of the main shaft are respectively connected with two ends of the other horizontally arranged anode graphite brush head through hinges, and the two anode graphite brush heads are symmetrically arranged on two sides of the main shaft and respectively correspond to the inner wall of a pipeline to be plated; two sides of the main shaft are symmetrically provided with two springs, wherein: one end of a spring is connected with the main shaft, and the other end of the spring is fixedly connected with the back of an anode graphite brush head; one end of the other spring is connected with the main shaft, and the other end of the spring is fixedly connected with the back surface of the other anode graphite brush head.
2. The device for coating the inner wall of the pipeline with different inner diameters according to claim 1, wherein one surface of the anode graphite brush head corresponding to the inner wall of the pipeline to be coated is provided with evenly distributed plating solution supply holes, the surface of the anode graphite brush head provided with the plating solution supply holes is wrapped by acrylic fiber brush plating cloth, and the anode graphite brush head is connected with a liquid supply pump through a liquid conveying pipe; the infusion tube comprises a main infusion tube and a branch infusion tube, one side of the anode graphite brush head, which is connected with the spring, is connected with the branch infusion tube of the infusion tube, one side of the anode graphite brush head, which is connected with the branch infusion tube, is wrapped by an insulating rubber sleeve, one end of the branch infusion tube is communicated with the inner cavity of one anode graphite brush head, and the other end of the branch infusion tube is communicated with the inner cavity of the other anode graphite brush head; the main infusion tube sequentially passes through the motor base, the motor and the central hole of the main shaft, one end of the main infusion tube is connected with a liquid supply pump arranged in the plating solution, and the other end of the main infusion tube is vertical to the branch infusion tubes and is communicated with the middle hole of the branch infusion tubes.
3. The apparatus for coating the inner wall of pipes with different inner diameters as set forth in claim 2, wherein the main shaft is provided with a sleeve, and the sleeve moves on the main shaft in the axial direction; when the device is in non-working time, the sleeve is positioned on the anode graphite brush head to tightly press the anode graphite brush head and the spring; when the device works, the sleeve moves to the motor base from the anode graphite brush head, and the anode graphite brush head is bounced through the spring, so that the acrylic fiber brush-plating cloth wrapped on the anode graphite brush head is tightly attached to the inner wall of the pipeline to be plated.
4. The device for coating the inner wall of the pipeline with different inner diameters as claimed in claim 1, wherein one end of the anode graphite brush head close to the power supply is connected with an anode wire, and two ends of the anode wire are respectively connected with the positive electrode of the power supply and the anode graphite brush head, so that the anode graphite brush head is used as an anode; the negative pole of the power supply is fixedly connected with the pipeline to be plated through a cathode wire, so that the pipeline to be plated serves as a cathode.
5. The device for coating the inner walls of the pipelines with different inner diameters according to claim 1, wherein the outer end of the bearing seat is connected with a traction mechanism through a steel wire rope, the front end baffle and the rear end baffle respectively correspond to the inner wall of the pipeline to be coated and are in interference fit, and a plating solution recovery box is arranged below one side, close to the front end baffle, outside the pipeline to be coated.
6. The apparatus of claim 1 wherein the telescoping rod is provided with a locking nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221180080.XU CN216947246U (en) | 2022-05-17 | 2022-05-17 | A device is executed and plates to pipeline inner wall coating for different internal diameters |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221180080.XU CN216947246U (en) | 2022-05-17 | 2022-05-17 | A device is executed and plates to pipeline inner wall coating for different internal diameters |
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| Publication Number | Publication Date |
|---|---|
| CN216947246U true CN216947246U (en) | 2022-07-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221180080.XU Active CN216947246U (en) | 2022-05-17 | 2022-05-17 | A device is executed and plates to pipeline inner wall coating for different internal diameters |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115747905A (en) * | 2023-01-08 | 2023-03-07 | 河南科技学院 | Plating device and plating method for automatically positioning inner wall of metal pipeline |
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2022
- 2022-05-17 CN CN202221180080.XU patent/CN216947246U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115747905A (en) * | 2023-01-08 | 2023-03-07 | 河南科技学院 | Plating device and plating method for automatically positioning inner wall of metal pipeline |
| CN115747905B (en) * | 2023-01-08 | 2023-03-31 | 河南科技学院 | Plating device and plating method for automatically positioning inner wall of metal pipeline |
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