Brazing device and process for large-joint water cooling plate
The welding apparatus with a heat shield and support structure addresses uneven temperature distribution in large joint welding, ensuring faster and more uniform heating to prevent defects and improve the welding quality.
Patent Information
- Application Number
- CN202510526943.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-25
- Publication Date
- 2025-07-15
AI Technical Summary
When welding large joints and water-cooled plates, the temperature at the position except for the brazing position of the large joints is likely to be too high, resulting in excessive local temperature, which may cause dissolution or deformation of the water-cooled plate after welding, affecting welding performance.
A brazing device for water-cooled plates of large joints is adopted, including a removable heat shield, heat absorbing fins and support frame mechanism. More heat is absorbed through the heat shield and quickly transferred to the large joint through the toothed thermal surface. The support frame mechanism maintains connection stability and avoids excessive local temperature.
The rapid and even heating of large joints is achieved, which avoids the problem of excessive local temperature, improves the brazing effect and the stability of the water-cooled plate, and ensures welding performance.
Smart Images
Figure CN120306750A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of brazing fixtures, and specifically, to a brazing device and process for a large joint water-cooled plate. Background Art
[0002] Brazing is a welding process in which, after heating to the melting point of the filler metal, the liquid filler metal is used to fill the joint gap and a metallurgical connection is formed through capillary action. Its core feature is that the base metal does not melt, and the connection is achieved only by relying on the wettability between the filler metal and the base metal. The water-cooled plate is the core component of the liquid cooling system, and when welding with the joint, it needs to meet the characteristics of high strength, high tightness, and fatigue resistance, so brazing is mostly used for welding.
[0003] When welding the water-cooled plate and the joint, the water-cooled plate and the joint are placed on the mesh belt of a mesh belt brazing furnace, and while the mesh belt drives the water-cooled plate and the joint to move, heating and brazing are carried out. However, when welding the large joint and the water-cooled plate, the water-cooled plate and the large joint are heated simultaneously. The large joint has a relatively large volume, and it takes a longer time and a higher temperature to heat it to a certain temperature. If the furnace temperature and the mesh belt speed are adjusted, it will result in that when the brazing temperature at the positions other than the brazing position of the large joint reaches the requirement, the brazing temperature at the remaining positions is locally too high. And the locally high temperature may pose the risks of corrosion or large deformation of the water-cooled plate after welding, which will simultaneously affect the welding performance. Therefore, when brazing the large joint and the water-cooled plate, there will be problems that the temperature at the brazing position and the large joint does not rise to the required temperature, and the local temperature at some positions on the water-cooled plate will be too high. Summary of the Invention
[0004] The present invention provides a brazing device and process for a large joint water-cooled plate, which is used to solve the problem that in the prior art, the temperature at the positions other than the brazing position of the large joint is too high when the water-cooled plate and the large joint are welded by brazing.
[0005] The technical solution of the present invention is as follows:
[0006] A brazing device for a large joint water-cooled plate. During brazing, the large joint and the water-cooled plate are detachably connected. It includes a placement bracket, a heat conduction cover, heat absorption fins, and a support frame mechanism. The large joint and the water-cooled plate are placed on the placement bracket, and the placement bracket is used to be placed on a mesh belt brazing machine so that the large joint and the water-cooled plate move along with the mesh belt. The heat conduction cover is detachably sleeved on the large joint, the heat conduction cover does not contact the water-cooled plate, the inner wall of the heat conduction cover does not fit on the surface of the large joint, the heat conduction cover is made of a material that can conduct heat, there are multiple heat absorption fins, and the multiple heat absorption fins are fixedly connected to the outside of the heat conduction cover. The support frame mechanism is fixedly connected to the placement bracket, the support frame mechanism surrounds the large joint, the heat conduction cover is detachably connected to the support frame mechanism, and the support frame mechanism is used to support and stabilize the heat conduction cover and the large joint.
[0007] Heat absorption fins are arranged on the outer sides of the heat conduction cover, handles are fixedly connected to both sides of the heat conduction cover, a toothed heat conduction surface is arranged on the inner side of the heat conduction cover, the toothed heat conduction surface does not contact the large joint, the toothed heat conduction surface is used to conduct heat into the heat conduction cover, multiple placement blocks are arranged inside the heat conduction cover, the multiple placement blocks are arranged on the upper side inside the heat conduction cover, the placement blocks contact the large joint, and the placement blocks are used to place the heat conduction cover on the large joint.
[0008] The placement bracket is arranged in a grid shape, multiple support cones are arranged on the upper side of the placement bracket, the support cones are used to support the water-cooled plate, multiple support feet are fixedly connected to the lower side of the placement bracket, and a docking pipe is fixedly connected to the placement bracket. When the water-cooled plate is placed on the support cones, the docking pipe passes through the connection hole on the water-cooled plate with the large joint, and when the large joint and the water-cooled plate are docked, the docking pipe is docked with the large joint.
[0009] The support frame mechanism includes a C-shaped frame and a limit block. The C-shaped frame is fixedly connected to the placement bracket, the opening on the C-shaped frame faces the support cone, the large joint is arranged in the C-shaped frame, the limit block is fixedly connected to the placement bracket, the limit block can contact the water-cooled plate, and the limit block is used to limit the position of the water-cooled plate when the water-cooled plate is placed on the support cones.
[0010] On the heat absorption fins of the heat conduction cover close to the C-shaped frame, clamping grooves are opened, the clamping grooves are matched with the C-shaped frame. When the heat conduction cover is sleeved on the large joint and the placement blocks contact the large joint, the C-shaped frame enters into the clamping grooves.
[0011] A brazing process for a large joint water-cooled plate, using the above-mentioned brazing device for a large joint water-cooled plate, includes the following steps:
[0012] Step 1. Placement of the water-cooled plate: Place the placement bracket on the mesh belt of the mesh belt type brazing machine, place the water-cooled plate on the support cones of the placement bracket, pass the docking pipe through the connection holes on the water-cooled plate, and push the water-cooled plate so that the water-cooled plate contacts the limit block;
[0013] Step 2. Placement of the large joint: Dock the large joint with the docking pipe, and the lower end of the large joint is docked with the connection holes on the water-cooled plate;
[0014] Step 3. Sleeving of the heat conduction cover: Sleeve the heat conduction cover on the large joint. As the heat conduction cover is placed downward, when the placement block contacts the large joint, the clamping groove is docked with the C-shaped frame;
[0015] Step 4. Brazing heating: After the heat conduction cover enters the mesh belt type brazing machine along with the mesh belt, the heat absorption fins absorb the heat, the temperature of the entire heat conduction cover rises, and the heat is transferred to the large joint through the toothed heat conduction surface. After the temperature of the large joint rises and is maintained at a certain temperature, the brazing is completed.
[0016] The working principle and beneficial effects of the present invention are as follows:
[0017] 1. In the present invention, by setting the heat absorption fins, more hot air is contacted in the brazing furnace, so as to absorb more heat, make the temperature of the heat conduction cover rise faster, and further increase the heat dissipation area through the toothed heat conduction surface to transfer the heat to the large joint;
[0018] 2. In the present invention, by setting the heat conduction cover and sleeving the heat conduction cover on the large joint, the heating rate of the large joint can be increased. Through the support of the support frame mechanism for the heat conduction cover and the water-cooled plate, on the one hand, the connection stability between the large joint and the water-cooled plate is ensured during the heating process, and on the other hand, the sleeving of the heat conduction cover on the large joint and the distance between the toothed heat conduction surface and the large joint are ensured, so that the large joint is heated more comprehensively and quickly. Description of the drawings
[0019] The following further elaborates the present invention in detail in conjunction with the drawings and specific embodiments.
[0020] Figure 1 It is a schematic diagram of the overall structure in the present invention;
[0021] Figure 2 It is a schematic diagram of the overall structure from another perspective in the present invention;
[0022] Figure 3Schematic diagram of the structure of the large connector and the heat conduction cover in the present invention;
[0023] Figure 4 Schematic diagram of the structure of the heat conduction cover in the present invention;
[0024] Figure 5 Schematic diagram of the structure of the large connector and the support frame mechanism in the present invention;
[0025] Figure 6 Schematic diagram of the internal structure of the partial cross-section of the present invention in cooperation;
[0026] Figure 7 Schematic diagram of the structure of the placement bracket and the support frame mechanism in the present invention in cooperation.
[0027] In the figure: 1. Large connector; 2. Water-cooled plate; 3. Placement bracket; 4. Heat conduction cover; 5. Heat absorption fin; 6. Tooth-shaped heat conduction surface; 7. Placement block; 8. Support cone; 9. Support leg; 10. Docking pipe; 11. C-shaped frame; 12. Limit block; 13. Clamping groove. Detailed implementation method
[0028] Next, in combination with the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.
[0029] Embodiment 1
[0030] As Figures 1 to 7As shown in the figure, this embodiment proposes a brazing device for a large joint water-cooled plate. During brazing, the large joint 1 and the water-cooled plate 2 are detachably connected, including a placement bracket 3, a heat conduction cover 4, heat absorption fins 5, and a support frame mechanism. The large joint 1 and the water-cooled plate 2 are placed on the placement bracket 3. The placement bracket 3 is used to be placed on a mesh belt brazing machine so that the large joint 1 and the water-cooled plate 2 move along with the mesh belt. The heat conduction cover 4 is detachably sleeved on the large joint 1, and the heat conduction cover 4 does not contact the water-cooled plate 2. The inner wall of the heat conduction cover 4 does not fit the surface of the large joint 1. The heat conduction cover 4 is made of a material that can conduct heat. There are multiple heat absorption fins 5. The multiple heat absorption fins 5 are fixedly connected to the outside of the heat conduction cover 4. The support frame mechanism is fixedly connected to the placement bracket 3. The support frame mechanism is arranged around the large joint 1. The heat conduction cover 4 is detachably connected to the support frame mechanism. The support frame mechanism is used to support and stabilize the heat conduction cover 4 and the large joint 1. The heat conduction cover 4, the large joint 1, and the water-cooled plate 2 are placed on the mesh belt through the placement bracket 3. The placement bracket 3 can reduce the instability of the connection between the water-cooled plate 2 and the large joint 1 when the angle of the mesh belt changes during transportation. Through the setting of the heat conduction cover 4, more heat can be absorbed and transferred to the large joint 1, so that the heating speed of the large joint 1 is faster. Furthermore, when brazing is completed, the temperature of the water-cooled plate 2 has not risen to the temperature that will cause deformation, and thus brazing is completed.
[0031] As Figures 1 to 4 shown, heat absorption fins 5 are arranged on the outer sides of the heat conduction cover 4. Handles are fixedly connected to both sides of the heat conduction cover 4. A toothed heat conduction surface 6 is arranged on the inner side of the heat conduction cover 4. The toothed heat conduction surface 6 does not contact the large joint 1. The toothed heat conduction surface 6 is used to conduct heat into the interior of the heat conduction cover 4. Multiple placement blocks 7 are arranged inside the heat conduction cover 4. The multiple placement blocks 7 are arranged on the upper side inside the heat conduction cover 4. The placement blocks 7 contact the large joint 1. The placement blocks 7 are used to place the heat conduction cover 4 on the large joint 1. The multiple heat absorption fins 5 can make the contact area between the heat conduction cover 4 and the high-temperature environment in the brazing furnace wider. The heat conduction cover 4 can absorb more heat. While the overall temperature of the heat conduction cover 4 rises, heat will diffuse outward. Heat is diffused into the interior of the heat conduction cover 4 through the toothed heat conduction surface 6. By setting the toothed heat conduction surface 6, the inner surface area of the heat conduction cover 4 is increased, and more heat can be radiated to the outside through the surface, so that the large joint 1 can be heated up further quickly. And the toothed heat conduction surface 6 does not contact the large joint 1, avoiding the situation of too high local temperature.
[0032] As Figures 6 to 7As shown, the placement bracket 3 is arranged in a grid pattern. On the upper side of the placement bracket 3, there are multiple support cones 8 provided. The support cones 8 are used to support the water-cooling plate 2. On the lower side of the placement bracket 3, there are multiple support feet 9 fixedly connected. There is a docking pipe 10 fixedly connected to the placement bracket 3. When the water-cooling plate 2 is placed on the support cones 8, the docking pipe 10 passes through the connection hole on the water-cooling plate 2 connected to the large connector 1. When docking the large connector 1 with the water-cooling plate 2, the docking pipe 10 is docked with the large connector 1. The placement bracket 3 is supported by multiple longer members. When the mesh belt is tilted, it can avoid the severe shaking situation that occurs when the water-cooling plate 2 is directly placed on the mesh belt, reducing the situation where the large connector 1 and the water-cooling plate 2 are not accurately docked. Multiple support cones 8 are used to support the water-cooling plate 2, reducing the contact area between the water-cooling plate 2 and the placement bracket 3 while maintaining stable support for the water-cooling plate 2, and avoiding local temperature rise of the water-cooling plate 2.
[0033] As Figures 1 to 2 shown, the support frame mechanism includes a C-shaped frame 11 and a limit block 12. The C-shaped frame 11 is fixedly connected to the placement bracket 3. The opening on the C-shaped frame 11 faces the support cone 8. The large connector 1 is arranged in the C-shaped frame 11. The limit block 12 is fixedly connected to the placement bracket 3. The limit block 12 can contact the water-cooling plate 2. The limit block 12 is used to limit the position of the water-cooling plate 2 when the water-cooling plate 2 is placed on the support cones 8. When installing the water-cooling plate 2, the water-cooling plate 2 can be abutted against the limit block 12, so that the position of the water-cooling plate 2 can be fixed on the placement bracket 3, avoiding shaking and offset of the water-cooling plate 2 when moving along with the mesh belt.
[0034] As Figures 1 to 2 shown, on the heat absorption fins 5 of the heat conduction cover 4 close to the C-shaped frame 11, there are clamping grooves 13 provided. The clamping grooves 13 are matched with the C-shaped frame 11. When the heat conduction cover 4 is sleeved on the large connector 1 and the placement block 7 contacts the large connector 1, the C-shaped frame 11 enters the clamping grooves 13. The C-shaped frame 11 docks with the clamping grooves 13 on the heat absorption fins 5 of the heat conduction cover 4 in three directions. On the one hand, it can support and limit the height of the sleeved heat conduction cover 4, and at the same time fix the position of the heat conduction cover 4, preventing the toothed heat conduction surface 6 from contacting the large connector 1. At the same time, due to the opening setting of the C-shaped frame 11, it is convenient for the installation and removal of the heat conduction cover 4 and the large connector 1.
[0035] In this embodiment, by arranging a heat-conducting cover 4 on the large joint 1, the heat-conducting cover 4 can conduct more heat to the large joint 1 during brazing, and transfer the heat to the large joint 1 through the toothed heat-conducting surface 6, so that the large joint 1 can heat up faster. Experimental comparison has proved that after the heat-conducting cover 4 is set, the welding ring is completely melted, and the brazing effect is significantly improved. When the heat-conducting cover 4 is not used, the peak temperature of the large joint 1 is less than 600 degrees. After using the heat-conducting cover 4, the temperature of the large joint 1 can be maintained at 605 degrees for two minutes, and the peak temperature is increased by 20 degrees. It can be seen that the heat-conducting cover 4 has a significant effect on the brazing of the cooling plate of the large joint 1.
[0036] Embodiment 2
[0037] A brazing process for a large-joint water-cooling plate, using the above-mentioned large-joint water-cooling plate brazing device, comprises the following steps:
[0038] Step 1: Place the water-cooled plate 2: Place the placement bracket 3 on the mesh belt on the mesh belt brazing machine, place the water-cooled plate 2 on the support cone 8 on the placement bracket 3, pass the docking pipe 10 through the connection hole on the water-cooled plate 2, and push the water-cooled plate 2 so that the water-cooled plate 2 contacts the limit block 12;
[0039] Step 2: Place the large joint 1: Connect the large joint 1 to the butt pipe 10, and connect the lower end of the large joint 1 to the connection hole on the water cooling plate 2;
[0040] Step 3: Install the heat-conducting cover 4: Install the heat-conducting cover 4 on the large joint 1. As the heat-conducting cover 4 is placed downward, when the placement block 7 contacts the large joint 1, the clamping groove 13 contacts the C-shaped frame 11.
[0041] Step 4, brazing heating: After the heat-conducting cover 4 enters the mesh belt brazing machine along with the mesh belt, the heat-absorbing fins 5 absorb the heat, the temperature of the entire heat-conducting cover 4 rises, and the heat is transferred to the large joint 1 through the toothed heat-conducting surface 6. After the temperature of the large joint 1 rises and is maintained at a certain temperature, the brazing is completed.
[0042] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A brazing device for a large joint water-cooled plate. When brazing, the large joint (1) and the water-cooled plate (2) are detachably connected, and it is characterized in that, Including: A placement bracket (3) on which the large joint (1) and the water-cooled plate (2) are placed. The placement bracket (3) is used to be placed on a mesh belt brazing machine so that the large joint (1) and the water-cooled plate (2) move along with the mesh belt; A heat conduction cover (4) detachably sleeved on the large joint (1). The heat conduction cover (4) does not contact the water-cooled plate (2), and the inner wall of the heat conduction cover (4) does not fit the surface of the large joint (1); Heat absorption fins (5), multiple of which are provided and fixedly connected to the outside of the heat conduction cover (4); A support frame mechanism fixedly connected to the placement bracket (3). The support frame mechanism is arranged around the large joint (1). The heat conduction cover (4) is detachably connected to the support frame mechanism, and the support frame mechanism is used to support and stabilize the heat conduction cover (4) and the large joint (1).
2. The brazing device for a large joint water-cooled plate according to claim 1, characterized in that, The heat absorption fins (5) are arranged on the outer side of the heat conduction cover (4). A toothed heat conduction surface (6) is arranged on the inner side of the heat conduction cover (4). The toothed heat conduction surface (6) does not contact the large joint (1), and the toothed heat conduction surface (6) is used to conduct heat into the heat conduction cover (4).
3. The brazing device for a large connector water-cooled plate according to claim 2, characterized in that, Multiple placement blocks (7) are arranged inside the heat conduction cover (4). The multiple placement blocks (7) are arranged on the upper side inside the heat conduction cover (4). The placement blocks (7) contact the large joint (1), and the placement blocks (7) are used to place the heat conduction cover (4) on the large joint (1).
4. A brazing device for a large joint water-cooled plate according to claim 3, characterized in that, The placement bracket (3) is arranged in a grid shape. Multiple support cones (8) are arranged on the upper side of the placement bracket (3). The support cones (8) are used to support the water-cooled plate (2). Multiple feet (9) are fixedly connected to the lower side of the placement bracket (3).
5. The brazing device for a large connector water-cooled plate according to claim 4, characterized in that, A docking pipe (10) is fixedly connected to the placement bracket (3). When the water-cooled plate (2) is placed on the support cones (8), the docking pipe (10) passes through the connection hole on the water-cooled plate (2) for the large joint (1). When the large joint (1) is docked with the water-cooled plate (2), the docking pipe (10) is docked with the large joint (1).
6. The brazing device for a large connector water-cooled plate according to claim 5, characterized in that The support frame mechanism includes: A C-shaped frame (11) fixedly connected to the placement bracket (3). The opening on the C-shaped frame (11) faces the support cones (8), and the large joint (1) is arranged in the C-shaped frame (11); A limit block (12) fixedly connected to the placement bracket (3). The limit block (12) can contact the water-cooled plate (2), and the limit block (12) is used to limit the position of the water-cooled plate (2) when the water-cooled plate (2) is placed on the support cones (8).
7. A brazing device for a large joint water-cooled plate according to claim 6, characterized in that, On the heat absorption fins (5) of the heat conduction cover (4) close to the C-shaped frame (11), clamping grooves (13) are opened, and the clamping grooves (13) cooperate with the C-shaped frame (11).
8. A brazing device for a large joint water-cooled plate according to claim 7, characterized in that, When the heat conduction cover (4) is sleeved on the large joint (1) and the placement block (7) contacts the large joint (1), the C-shaped frame (11) enters the clamping groove (13).
9. The brazing device for a large joint water-cooled plate according to claim 8, characterized in that, The heat conduction cover (4) is made of a material capable of heat conduction.
10. A brazing process for a large joint water-cooled plate, which uses a brazing device for a large joint water-cooled plate as described in claim 9, is characterized in that, It includes the following steps: S1. Placement of the water-cooled plate (2): Place the placement bracket (3) on the mesh belt of the mesh belt type brazing machine, place the water-cooled plate (2) on the support cone (8) on the placement bracket (3), pass the docking pipe (10) through the connection hole on the water-cooled plate (2), and push the water-cooled plate (2) so that the water-cooled plate (2) contacts the limit block (12); S2. Placement of the large joint (1): Docking the large joint (1) with the docking pipe (10), and docking the lower end of the large joint (1) with the connection hole on the water-cooled plate (2); S3. Sleeving of the heat conduction cover (4): Sleeve the heat conduction cover (4) on the large joint (1). As the heat conduction cover (4) is placed downward, when the placement block (7) contacts the large joint (1), the clamping groove (13) is docked with the C-shaped frame (11); S4. Brazing heating: After the heat conduction cover (4) enters the mesh belt type brazing machine along with the mesh belt, the heat absorption fins (5) absorb heat, the temperature of the entire heat conduction cover (4) rises, and the heat is transferred to the large joint (1) through the toothed heat conduction surface (6). After the temperature of the large joint (1) rises and is maintained at a certain temperature, the brazing is completed.