Device for conveniently controlling shape of thin-walled workpiece and improving production efficiency in thermal spraying process
By designing a high-pressure chiller and a cooling medium circulation pipeline, combined with a contoured worktable and a cast iron heat exchange substrate, the problem of uneven cooling of thin-walled parts during thermal spraying was solved, achieving uniform cooling of the substrate and improving production efficiency.
Patent Information
- Application Number
- CN202423043166.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-10
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2034-12-10
AI Technical Summary
Existing air-cooling devices struggle to achieve uniform cooling of thin-walled substrates during thermal spraying, leading to deformation and low production efficiency.
By employing a high-pressure chiller, a cooling medium circulation pipeline, and a heat exchange device, the flow rate and temperature of the cooling medium are controlled through the high-pressure chiller. Uniform cooling is achieved by utilizing a contoured worktable and a heat exchange substrate. Combined with the design of stainless steel explosion-proof corrugated pipes and cast iron heat exchange substrates, the shape control of thin-walled parts and the improvement of production efficiency are realized.
It achieves uniform cooling of thin-walled substrates, reduces deformation, improves spraying production efficiency, and accelerates the cooling rate through heat conduction.
Smart Images
Figure CN223646608U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of thermal spraying technology and relates to a cooling device for controlling the surface temperature of a substrate, and more particularly to a device that facilitates shape control of thin-walled parts and improves production efficiency during thermal spraying. Background Technology
[0002] In the field of thermal spraying, precise temperature control of the substrate is crucial, as excessively high temperatures can cause deformation of the substrate, ultimately affecting the assembly and performance of the part. Currently, the thermal spraying industry commonly uses air-cooling devices for localized cooling to control the substrate temperature.
[0003] Air cooling devices primarily utilize compressed air to accelerate gas flow and remove heat from the substrate surface. However, existing air cooling devices suffer from small size, limiting their ability to cool only localized areas and hindering the achievement of uniform cooling over large surfaces. This uneven cooling can easily cause severe deformation of thin-walled substrates during thermal spraying, while also prolonging cooling time and impacting spraying efficiency. Furthermore, even increasing the size of the air cooling device cannot effectively solve the problem of uneven substrate surface cooling; the cooling effect often becomes less ideal with increasing distance from the device.
[0004] In view of the above, this utility model is hereby proposed. Utility Model Content
[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a device that facilitates shape control of thin-walled parts and improves production efficiency during thermal spraying, so as to solve the problem of substrate deformation during thermal spraying of thin-walled parts.
[0006] This device, which facilitates shape control of thin-walled parts and improves production efficiency during thermal spraying, includes a high-pressure chiller connected to a heat exchange substrate in a heat exchange device via a cooling medium circulation pipeline. A contour worktable for placing the substrate to be sprayed is fixed above the heat exchange substrate.
[0007] Specifically, the high-pressure chiller includes:
[0008] The control panel located on the top of the unit is used to set the inlet water flow rate and inlet water pressure, and to control the start and stop of the high-pressure chiller; the inlet water flow rate, pressure and temperature gauge located on the top of the unit is used to monitor the inlet water flow rate, inlet water pressure and inlet water temperature; the return water flow rate, pressure and temperature gauge located on the top of the unit is used to monitor the return water flow rate, return water pressure and return water temperature.
[0009] Specifically, the high-pressure chiller also includes:
[0010] The inlet ball valve interface and the return ball valve interface are symmetrically distributed on the front surface of the machine body. The inlet ball valve interface is equipped with an inlet ball valve and is connected to the inlet of the cooling medium circulation pipeline. The return ball valve interface is equipped with a return ball valve and is connected to the outlet of the cooling medium circulation pipeline.
[0011] Specifically, the cooling medium circulation pipeline includes:
[0012] The main water inlet pipe has its inlet connected to the inlet ball valve interface via an inlet ball valve. Its outlet is connected to the inlet of the water inlet drain. The outlet of the water inlet drain is connected to the inlet of the corresponding branch water inlet pipe via multiple branch inlet ball valves. The outlet of each branch water inlet pipe is connected to the inlet of the heat exchange substrate. The return water inlet of the heat exchange substrate is connected to the inlet of the return water drain via multiple branch return water pipes. The outlet of the return water drain is connected to the inlet of the main return water pipe. The outlet of the main return water pipe is connected to the return water ball valve interface via a return water ball valve.
[0013] Specifically, the heat exchange substrate includes: a water inlet connector installed at the water inlet of the heat exchange substrate, a water return connector installed at the water return outlet of the heat exchange substrate, and multiple water channels evenly arranged inside the heat exchange substrate and connected by connecting pipes.
[0014] The outlet of the branch water inlet pipe is connected to the water inlet inside the heat exchange substrate via an inlet connector. The return water inside the heat exchange substrate is connected to the inlet of the return water drain via a return water connector and multiple branch return water pipes. Preferably, the connecting pipe is a U-shaped pipe.
[0015] Specifically, all pipes in the cooling medium circulation pipeline are made of stainless steel explosion-proof corrugated pipes.
[0016] Specifically, the back of the contoured worktable is provided with a recessed platform for limiting positioning.
[0017] Specifically, the area of the contoured worktable is larger than the area of the heat exchange substrate. The heat exchange device includes a heat exchange substrate and a support mechanism located below the heat exchange substrate.
[0018] Specifically, the heat exchange substrate is made of cast iron produced using a ball mill casting process.
[0019] Compared with the prior art, the technical solution provided by this utility model has the following beneficial effects:
[0020] 1) The device consists of a high-pressure chiller, a cooling medium circulation pipeline, a heat exchange device, and a contouring worktable. The contouring worktable can be processed according to the shape and size of the specific part substrate. The heat from the thermal spray particles and the flame is transferred to the contouring worktable through heat conduction. The heat is then conducted to the heat exchange device through the contouring worktable. Finally, the heat is carried away through multiple pipelines via the heat transfer medium, so as to achieve uniform cooling of thin-walled parts.
[0021] 2) The high-pressure chiller in this utility model is used for the circulation and cooling of the heat transfer medium. It includes real-time monitoring of inlet water pressure, inlet water flow rate, and inlet water temperature, as well as real-time monitoring of return water pressure, return water flow rate, and return water temperature, which can accurately control the temperature of the heat exchange device.
[0022] 3) In this invention, all pipes in the cooling medium circulation pipeline are made of stainless steel explosion-proof corrugated pipes to avoid thermal damage to the pipes caused by the flame during thermal spraying. Ball valves (inlet ball valve and return ball valve) are installed on the main inlet and return water pipes respectively, ensuring convenient replacement and maintenance. Multiple branch inlet water pipes and multiple branch return water pipes are arranged in parallel to avoid pressure loss and temperature difference ("one end cold, one end hot") caused by series connection. Furthermore, each branch inlet water pipe is equipped with a separate ball valve (branch inlet ball valve), ensuring that the flow rate and temperature of each branch inlet water pipe are adjustable and controllable.
[0023] 4) The heat exchange substrate in this utility model is made of cast iron using ball mill casting process, which ensures that the heat exchange substrate does not deform during the alternation of hot and cold; and the area of the contour worktable is larger than the area of the heat exchange substrate, which can effectively protect the surrounding pipes of the heat exchange substrate and prevent the coating from depositing on the pipes during the thermal spraying process.
[0024] In summary, the device provided by this utility model achieves uniform cooling of the substrate to be sprayed, reduces the deformation of thin-walled substrates during thermal spraying, accelerates the cooling rate of the substrate through heat conduction and heat exchange, and thus improves the spraying production efficiency of parts. Attached Figure Description
[0025] The accompanying drawings are incorporated in and form part of this specification, and together with the description, serve to explain the principles of this invention.
[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0027] Figure 1 A schematic diagram of a device for facilitating shape control of thin-walled parts and improving production efficiency during thermal spraying, provided by this utility model;
[0028] Figure 2 This is a schematic diagram of the structure of the medium and high pressure chiller of this utility model;
[0029] Figure 3 This is a schematic diagram of the cooling medium circulation pipeline in this utility model;
[0030] Figure 4 This is a schematic diagram of the structure of the heat exchange substrate in this utility model;
[0031] Figure 5 This is a schematic diagram of the contour-following worktable in this utility model.
[0032] The components include: 1. High-pressure chiller; 11. Control panel; 12. Inlet water flow, pressure and temperature gauge; 13. Return water flow, pressure and temperature gauge; 14. Inlet ball valve; 15. Return water ball valve.
[0033] 2. Cooling medium circulation pipeline; 21. Main water inlet pipeline; 22. Main return water pipeline; 23. Water inlet drain; 24. Water return drain; 25. Branch water inlet pipeline; 26. Branch water inlet ball valve; 27. Branch water return pipeline;
[0034] 3. Heat exchange base plate; 31. Water inlet connector; 32. Water return connector; 33. U-shaped pipe; 34. Water channel;
[0035] 4. Contour-shaped work surface; 41. Recessed platform. Detailed Implementation
[0036] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this invention. Rather, they are merely examples consistent with some aspects of this invention as detailed in the appended claims.
[0037] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.
[0038] Example
[0039] See Figures 1-5As shown, this embodiment provides a device for facilitating shape control of thin-walled parts and improving production efficiency during thermal spraying. The device includes a high-pressure chiller 1, which is connected to a heat exchange substrate 3 in a heat exchange device via a cooling medium circulation pipeline 2. A contouring worktable 4 for placing the substrate to be sprayed is fixed above the heat exchange substrate 3.
[0040] Furthermore, combined Figure 2 The high-pressure chiller 1 includes:
[0041] The control panel 11 (here, a touch screen) located on the top of the unit is used to set the inlet water flow rate and inlet water pressure, and to control the start and stop of the high-pressure chiller 1; the inlet water flow rate, pressure and temperature gauge 12 located on the top of the unit is used to monitor the inlet water flow rate, inlet water pressure and inlet water temperature; the return water flow rate, pressure and temperature gauge 13 located on the top of the unit is used to monitor the return water flow rate, return water pressure and return water temperature.
[0042] Furthermore, the high-pressure chiller 1 also includes:
[0043] The inlet ball valve interface and the return ball valve interface are symmetrically distributed on the front surface of the machine body. The inlet ball valve interface is equipped with an inlet ball valve 14 (used to control the opening and closing of the inlet water) and is connected to the inlet of the cooling medium circulation pipeline 2. The return ball valve interface is equipped with a return ball valve 15 (used to control the opening and closing of the return water) and is connected to the outlet of the cooling medium circulation pipeline 2.
[0044] Furthermore, combined Figure 3 The cooling medium circulation pipeline 2 includes:
[0045] The main water inlet pipe 21 has its inlet connected to the inlet ball valve interface via an inlet ball valve 14. The outlet of the main water inlet pipe 21 is connected to the inlet of the water inlet drain 23. The outlet of the water inlet drain 23 is connected to the inlet of the corresponding branch water inlet pipe 25 via multiple branch inlet ball valves 26. The outlet of the branch inlet pipe 25 is connected to the inlet of the heat exchange base plate 3. The return water inlet of the heat exchange base plate 3 is connected to the inlet of the return water drain 24 via multiple branch return water pipes 27. The outlet of the return water drain 24 is connected to the inlet of the main return water pipe 22. The outlet of the main return water pipe 22 is connected to the return water ball valve interface via a return water ball valve 15.
[0046] Furthermore, the heat exchange substrate 3 includes: a water inlet connector 31 installed at the water inlet of the heat exchange substrate 3, a water return connector 32 installed at the water return outlet of the heat exchange substrate 3, and a plurality of water channels 34 evenly arranged in the heat exchange substrate 3 and connected by a connecting pipe.
[0047] The outlet of the branch water inlet pipe 25 is connected to the water inlet in the heat exchange substrate 3 via the water inlet connector 31, and the return water in the heat exchange substrate 3 is connected to the water inlet of the return water drain 24 via the return water connector 32 and multiple branch return water pipes 27.
[0048] The heat exchange substrate 3 contains N uniformly arranged φ10mm water channels 34 (N being an integer greater than or equal to 2). A water inlet connector 31 is located at the inlet of the first water channel and connects to the water inlet pipes 25 of each branch. A water return connector 32 is located at the outlet (return) of the Nth water channel and connects to the water return pipes 27 of each branch. Specifically, the outlet of the first water channel is connected to the inlet of the second water channel via a connecting pipe, and the outlet of the second water channel is connected to the inlet of the third water channel via a connecting pipe. In other words, the inlet of the current water channel is connected to the outlet of the previous water channel via a connecting pipe, and the outlet of the current water channel is connected to the inlet of the next water channel via a connecting pipe. This continues until the N water channels 34 form a "W" shape arrangement within the heat exchange substrate 3, constituting one unit. It should be noted that the size of the heat exchange substrate 3 and the number of water channels 34 can be adjusted according to the size of the substrate to be coated (such as a thin-walled part substrate).
[0049] Preferably, the connecting pipe in this embodiment can be a U-shaped pipe 33, or other shapes of connecting pipes can also be used. In principle, as long as the connection between pipes can be achieved, it is acceptable. This will not be elaborated here.
[0050] Furthermore, all pipes in the cooling medium circulation pipeline 2 are made of stainless steel explosion-proof corrugated pipes to avoid thermal damage to the pipes caused by the flame during thermal spraying.
[0051] Furthermore, the back of the contoured worktable 4 is provided with a recessed platform 41 for limiting positioning. After the contoured worktable 4 is positioned by the recessed platform 41 on the back, it precisely matches the heat exchange substrate 3, is located above the heat exchange substrate 3 and is in close contact with it.
[0052] Furthermore, the area of the contoured worktable 4 is larger than the area of the heat exchange substrate 3, which can effectively protect the surrounding pipes of the heat exchange substrate 3 and prevent the coating from depositing on the pipes during the thermal spraying process.
[0053] Furthermore, the heat exchange substrate 3 is made of cast iron using a ball mill casting process, which ensures that the heat exchange substrate 3 does not deform during the alternating hot and cold process.
[0054] The actual process of using this device is as follows:
[0055] First, place the heat exchange substrate 3 horizontally; second, place the contoured worktable 4 on the heat exchange substrate 3 (it can be fixed with other fasteners if necessary); third, open the inlet ball valve 14, the return ball valve 15, and the branch inlet ball valve 26 in sequence; fourth, start the high-pressure chiller 1 and set the inlet pressure and flow rate; fifth, perform formal spraying and monitor the return water temperature during use using the return water flow rate, pressure, and temperature gauge 13; sixth, after spraying is completed, turn off the high-pressure chiller 1 and close the branch inlet ball valve 26, the main inlet ball valve 14, and the main return ball valve 15 in sequence.
[0056] This device can achieve uniform cooling of the substrate to be sprayed, reduce the deformation of thin-walled substrates during thermal spraying, accelerate the cooling rate of the substrate through heat conduction and heat exchange, and thus improve the spraying production efficiency of parts.
[0057] The above description is merely a specific embodiment of this utility model, enabling those skilled in the art to understand or implement it. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this utility model.
[0058] It should be understood that this utility model is not limited to the content already described above, and various modifications and changes can be made without departing from its scope. The scope of this utility model is limited only by the appended claims.
Claims
1. A device for facilitating shape control of thin-walled parts and improving production efficiency during thermal spraying, characterized in that, It includes a high-pressure chiller (1), which is connected to a heat exchange substrate (3) in a heat exchange device through a cooling medium circulation pipeline (2). A contoured worktable (4) for placing the substrate to be sprayed is fixed above the heat exchange substrate (3).
2. The device for facilitating shape control of thin-walled parts and improving production efficiency during thermal spraying according to claim 1, characterized in that, The high-pressure chiller (1) includes: The control panel (11) on the top of the unit is used to set the inlet water flow rate and inlet water pressure, and to control the start and stop of the high-pressure chiller (1); the inlet water flow rate, pressure and temperature gauge (12) on the top of the unit is used to monitor the inlet water flow rate, inlet water pressure and inlet water temperature; the return water flow rate, pressure and temperature gauge (13) on the top of the unit is used to monitor the return water flow rate, return water pressure and return water temperature.
3. The device for facilitating shape control of thin-walled parts and improving production efficiency during thermal spraying according to claim 2, characterized in that, The high-pressure chiller (1) also includes: The inlet ball valve interface and the return ball valve interface are symmetrically distributed on the front surface of the machine body. The inlet ball valve interface is equipped with an inlet ball valve (14) and is connected to the inlet of the cooling medium circulation pipeline (2). The return ball valve interface is equipped with a return ball valve (15) and is connected to the outlet of the cooling medium circulation pipeline (2).
4. The device for facilitating shape control of thin-walled parts and improving production efficiency during thermal spraying according to claim 3, characterized in that, The cooling medium circulation pipeline (2) includes: The main water inlet pipe (21) has its inlet connected to the inlet ball valve interface via an inlet ball valve (14). The outlet of the main water inlet pipe (21) is connected to the inlet of the water inlet drain (23). The outlet of the water inlet drain (23) is connected to the inlet of the corresponding branch water inlet pipe (25) via multiple branch inlet ball valves (26). The outlet of the branch inlet pipe (25) is connected to the inlet of the heat exchange base plate (3). The return water inlet of the heat exchange base plate (3) is connected to the inlet of the return water drain (24) via multiple branch return water pipes (27). The outlet of the return water drain (24) is connected to the inlet of the main return water pipe (22). The outlet of the main return water pipe (22) is connected to the return water ball valve interface via a return water ball valve (15).
5. The device for facilitating shape control of thin-walled parts and improving production efficiency during thermal spraying according to claim 4, characterized in that, The heat exchange substrate (3) includes: a water inlet connector (31) installed at the water inlet of the heat exchange substrate (3), a water return connector (32) installed at the water return outlet of the heat exchange substrate (3), and multiple water channels (34) evenly arranged in the heat exchange substrate (3) and connected by connecting pipes. The outlet of the branch water inlet pipe (25) is connected to the inlet of the heat exchange substrate (3) via the inlet connector (31), and the return water in the heat exchange substrate (3) is connected to the inlet of the return water drain (24) via the return water connector (32) and multiple branch return water pipes (27).
6. The device for facilitating shape control of thin-walled parts and improving production efficiency during thermal spraying according to claim 5, characterized in that, The connecting pipe is a U-shaped pipe (33).
7. The device for facilitating shape control of thin-walled parts and improving production efficiency during thermal spraying according to claim 1, characterized in that, All pipes in the cooling medium circulation pipeline (2) are made of stainless steel explosion-proof corrugated pipes.
8. The apparatus for facilitating shape control of thin-walled parts and improving production efficiency during thermal spraying according to claim 1, characterized in that, The back of the contoured worktable (4) is provided with a recessed platform (41) for limiting positioning.
9. The device for facilitating shape control of thin-walled parts and improving production efficiency during thermal spraying according to claim 1, characterized in that, The area of the contoured worktable (4) is larger than the area of the heat exchange substrate (3).
10. The apparatus for facilitating shape control of thin-walled parts and improving production efficiency during thermal spraying according to any one of claims 1 to 9, characterized in that, The heat exchange substrate (3) is made of cast iron using a ball mill casting process.