Aluminum hot extrusion die for double-layer porous ultrathin high-precision water-cooled plate

Abstract

The utility model discloses a kind of aluminium hot extrusion dies of double-layer porous ultrathin high-precision water-cooled plate, comprising: upper die, the shunt bridge is provided on the upper die, and the shunt through-hole is opened in the upper die;Lower die, the welding chamber is opened in the lower die, and the discharge hole that is communicated with the welding chamber is also opened in the lower die;Die core, the die core is set on the shunt bridge, and the die core is adapted with the welding chamber;Six groups of shunt holes, the shunt hole is set on the upper die, and six groups of shunt holes are distributed in the periphery of the shunt bridge;The beneficial effects of the utility model are: by setting six groups of shunt holes around shunt bridge periphery, aluminum profile can be evenly distributed to welding chamber, compared with the uneven distribution of aluminum profile in traditional mold, the uneven distribution mode can effectively avoid the forming defects caused by local accumulation or deficiency of aluminum profile, such as uneven wall thickness, internal cavity and other problems.

Description

Technical Field

[0001] This utility model relates to an aluminum hot extrusion die for a double-layer porous ultra-thin high-precision water-cooled plate. Background Technology

[0002] With the rapid development of electronic equipment, new energy vehicles and other fields, the performance requirements of heat dissipation components are increasing. As a high-efficiency heat dissipation element, the double-layer porous ultra-thin high-precision water-cooled plate is widely used in the heat dissipation system of high power density devices due to its advantages such as large heat dissipation area, light weight and compact structure.

[0003] Previously, double-layer porous ultra-thin high-precision water-cooled plates were mostly formed using aluminothermic extrusion, and their forming quality directly depended on the structural design of the hot extrusion die. However, in the production of such water-cooled plates, the traditional aluminothermic extrusion die has an unreasonable distribution of flow holes, resulting in uneven distribution of aluminum profiles when entering the welding chamber. This can easily lead to local accumulation or insufficient supply, which in turn causes forming defects such as wall thickness deviation and internal voids in the water-cooled plate, affecting the structural strength and heat dissipation performance of the product. In view of this, this utility model proposes an aluminothermic extrusion die for double-layer porous ultra-thin high-precision water-cooled plates to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to provide an aluminum hot extrusion die for a double-layer porous ultra-thin high-precision water-cooled plate, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A hot extrusion die for a double-layer porous ultrathin high-precision water-cooled plate includes: The upper mold is provided with a flow divider bridge and has flow divider holes. The lower mold has a welding chamber and a discharge hole that communicates with the welding chamber. A mold core, which is disposed on the flow divider bridge and is adapted to the welding chamber; Six sets of flow dividers are provided on the upper mold, and the six sets of flow dividers are distributed around the flow divider bridge; The flow distribution hole is connected to the welding chamber. The flow distribution hole is used to evenly distribute the aluminum profile to the welding chamber. The discharge hole is used for the extrusion of the formed aluminum profile. The die core is used for the hot extrusion production of the aluminum profile.

[0006] As an improvement to the above technical solution, the diversion flow hole is located at the middle position of the diversion bridge.

[0007] As an improvement to the above technical solution, the diversion flow hole is provided to pass through the diversion bridge and the mold core.

[0008] As an improvement to the above technical solution, the discharge hole is set in a stepped shape, and the outlet width of the discharge hole on the side away from the upper mold is greater than the outlet width on the side closer to the upper mold.

[0009] As an improvement to the above technical solution, both the upper mold and the lower mold are made of H13 special mold steel.

[0010] As an improvement to the above technical solution, both the upper mold and the lower mold are disc-shaped structures.

[0011] As an improvement to the above technical solution, the six sets of diversion holes are symmetrically distributed with the central axis of the diversion bridge as the center.

[0012] Compared with the prior art, the beneficial effects of this utility model are: By setting six groups of flow holes around the flow bridge, the aluminum profile can be evenly distributed to the welding chamber. Compared with the uneven distribution of aluminum profile in traditional molds, this uniform distribution method can effectively avoid forming defects caused by local accumulation or insufficient aluminum profile, such as uneven wall thickness and internal voids. It significantly improves the uniformity of aluminum profile distribution in the welding chamber and lays the foundation for subsequent high-quality forming. The die core is set on the flow divider bridge and is adapted to the welding chamber. During the hot extrusion process, the die core can provide precise shaping guidance for the aluminum profile. Compared with the aluminum profile hot extrusion deformation deviation caused by poor adaptability between the die core and the welding chamber in the existing technology, this die can ensure that the aluminum profile is hot extruded according to the predetermined shape and size, effectively improving the dimensional accuracy and shape consistency of the product and reducing the scrap rate. The flow channel is connected to the welding chamber, and the discharge port is used for the extrusion of the formed aluminum profile. The entire process is designed to be reasonable and smooth. During the hot extrusion of the aluminum profile, from the aluminum profile entering the flow channel to the welding in the welding chamber and then being extruded through the discharge port, each link works closely together, which greatly improves production efficiency. Compared with traditional molds, it reduces the downtime and energy loss in the production process and realizes efficient and continuous hot extrusion production of aluminum profiles. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the upper mold of this utility model; Figure 3 This utility model Figure 2 Enlarged structural diagram at point A; Figure 4 This is a schematic diagram of the lower mold of this utility model; Figure 5 This is a front view of the lower mold of this utility model; Figure 6 This is a partial cross-sectional schematic diagram of the upper and lower molds of this utility model; Figure 7 This utility model Figure 6 A magnified structural diagram at point B in the middle.

[0014] In the diagram: 10. Upper mold; 11. Diversion hole; 12. Diversion flow hole; 13. Diversion bridge; 20. Lower mold; 21. Welding chamber; 22. Discharge hole; 30. Mold core. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Example: like Figure 1-7 As shown, this embodiment proposes an aluminum hot extrusion die for a double-layer porous ultrathin high-precision water-cooled plate, comprising: The upper mold 10 is provided with a flow divider bridge 13 and a flow divider hole 12 is provided on the upper mold 10; The lower mold 20 has a welding chamber 21 and a discharge hole 22 communicating with the welding chamber 21. Mold core 30, the mold core 30 is disposed on the flow divider bridge 13, and the mold core 30 is adapted to the welding chamber 21; Six sets of flow dividers 11 are provided on the upper mold 10, and the six sets of flow dividers 11 are distributed around the flow divider bridge 13; The flow distribution hole 12 is connected to the welding chamber 21. The flow distribution hole 11 is used to evenly distribute the aluminum profile to the welding chamber 21. The discharge hole 22 is used for the extrusion of the formed aluminum profile. The mold core 30 is used for the hot extrusion production of the aluminum profile.

[0017] In this case, the cavity of the first step in the direction of the discharge hole 22 toward the mold core 30 is a mold cavity for inserting the mold core 30, which facilitates the hot extrusion production of aluminum profiles.

[0018] In this embodiment, when producing a double-layer porous ultra-thin high-precision water-cooled plate, the upper mold 10 and the lower mold 20 are first checked to ensure that they are intact and undamaged. At the same time, it is confirmed that the mold core 30 is set on the flow divider bridge 13 and is compatible with the cavity on the discharge hole 22 of the lower mold 20. Then, the upper mold 10 and the lower mold 20 are installed and fixed in the correct positions to ensure that they will not shift or loosen during the subsequent hot extrusion process, thus ensuring the stability of the mold. Next, the aluminum profile raw material to be processed is placed into the corresponding feeding device so that it can smoothly enter the diversion hole 11 of the upper die 10, and the hot extrusion equipment is turned on so that the equipment reaches the temperature and pressure parameters required for operation. Under the action of the hot extrusion equipment, the aluminum profile raw material enters the six diversion holes 11 of the upper die 10, and the aluminum profile is evenly distributed into the welding chamber 21 of the lower die 20. The aluminum profile is welded in the welding chamber 21. At the same time, it is hot extruded and shaped under the action of the die core 30. Since the diversion hole 12 is connected to the welding chamber 21, it can assist the flow and distribution of the aluminum profile in the welding chamber 21, ensuring the smooth progress of the forming process. The formed aluminum profile is extruded through the discharge hole 22 on the lower die 20. By setting six sets of flow holes 11 around the flow bridge 13, the aluminum profile can be evenly distributed to the welding chamber 21. Compared with the uneven distribution of aluminum profile in traditional molds, this uniform distribution method can effectively avoid forming defects caused by local accumulation or insufficient aluminum profile, such as uneven wall thickness and internal voids. It significantly improves the uniformity of aluminum profile distribution in the welding chamber 21, laying the foundation for subsequent high-quality forming. The die core 30 is set on the flow divider bridge 13 and is adapted to the welding chamber 21. During the hot extrusion process, the die core 30 can provide precise shaping guidance for the aluminum profile. Compared with the aluminum profile hot extrusion deformation deviation caused by poor compatibility between the die core 30 and the welding chamber 21 in the prior art, this die can ensure that the aluminum profile is hot extruded according to the predetermined shape and size, effectively improving the dimensional accuracy and shape consistency of the product and reducing the scrap rate. The flow channel 12 is connected to the welding chamber 21, and the discharge port 22 is used for the extrusion of the formed aluminum profile. The whole process is designed to be reasonable and smooth. In the hot extrusion process of aluminum profile, from the aluminum profile entering the flow channel 12 to the welding in the welding chamber 21 and then being extruded through the discharge port 22, each link works closely together, which greatly improves production efficiency. Compared with traditional molds, it reduces the downtime and energy loss in the production process and realizes efficient and continuous hot extrusion production of aluminum profile.

[0019] Specifically, the diversion hole 12 is located at the middle position of the diversion bridge 13.

[0020] In this embodiment, the flow diversion hole 12 is set at the middle position of the flow diversion bridge 13, which allows the aluminum profile to form a symmetrical flow pattern centered on the central axis of the flow diversion bridge 13 during the process of entering the welding chamber 21. This centrally set structural design can effectively balance the distributed pressure of the aluminum profile in the area surrounding the flow diversion bridge 13, and avoid the problem of excessive or insufficient local flow of the aluminum profile caused by the offset position of the flow diversion hole 12.

[0021] Specifically, the flow-diverting hole 12 is provided through the flow-diverting bridge 13 and the mold core 30.

[0022] In this embodiment, the through-type structure can effectively reduce the local resistance of the aluminum profile during the flow process, avoid eddies and stagnation caused by interruption or turning of the flow path, ensure that the aluminum profile enters the welding chamber 21 with a stable flow rate and pressure, and improve the filling efficiency of the aluminum profile in the welding chamber 21.

[0023] Specifically, the discharge hole 22 is stepped, and the outlet width of the discharge hole 22 on the side away from the upper mold 10 is greater than the outlet width on the side closer to the upper mold 10.

[0024] In this embodiment, the stepped discharge hole 22 facilitates the extrusion of the aluminum profile after molding, ensuring the integrity of the aluminum profile surface.

[0025] Specifically, both the upper mold 10 and the lower mold 20 are made of H13 special mold steel.

[0026] Specifically, both the upper mold 10 and the lower mold 20 are disc-shaped structures.

[0027] Specifically, the six sets of diversion holes 11 are symmetrically distributed with the central axis of the diversion bridge 13 as the center.

[0028] In this embodiment, the symmetrical distribution structure can effectively balance the flow rate and pressure of aluminum profiles in each diversion hole 11, avoiding local oversupply or undersupply of aluminum profiles due to uneven distribution of diversion holes 11. This reduces defects such as stress concentration and incomplete welding caused by imbalance in the distribution of aluminum profiles in the welding chamber 21. At the same time, the symmetrical layout and the central setting of the diversion holes 12 work together to further improve the uniformity of aluminum profile distribution to the welding chamber 21, ensuring that the aluminum profiles are subjected to balanced forces during the welding process. This ensures that the double-layer porous ultra-thin high-precision water-cooled plate after forming has consistent wall thickness accuracy and structural strength, significantly improving the dimensional stability and pass rate of the product.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An aluminum hot extrusion die for a double-layered porous ultrathin high-precision water-cooled plate, characterized in that: include: The upper mold (10) is provided with a flow divider bridge (13) and a flow divider hole (12) is opened on the upper mold (10). The lower mold (20) has a welding chamber (21) and a discharge hole (22) communicating with the welding chamber (21). Mold core (30), the mold core (30) is disposed on the flow divider bridge (13), and the mold core (30) is adapted to the welding chamber (21); Six sets of flow dividers (11) are provided on the upper mold (10), and the six sets of flow dividers (11) are distributed around the flow divider bridge (13); The flow distribution hole (12) is connected to the welding chamber (21), the flow distribution hole (11) is used to evenly distribute the aluminum profile to the welding chamber (21), the discharge hole (22) is used for the extrusion of the aluminum profile after forming, and the die core (30) is used for the hot extrusion production of the aluminum profile.

2. The aluminum hot extrusion die of a double-layered porous ultra-thin high-precision water-cooled plate according to claim 1, characterized in that: The diversion flow hole (12) is located at the middle position of the diversion bridge (13).

3. The aluminum hot extrusion die of a double-layered porous ultra-thin high-precision water-cooled plate according to claim 1, characterized in that: The flow-diverting hole (12) is provided through the flow-diverting bridge (13) and the mold core (30).

4. The aluminum hot extrusion die of a double-layered multi-bore ultra-thin high-precision water-cooled plate according to claim 3, characterized in that: The discharge hole (22) is stepped, and the outlet width of the discharge hole (22) on the side away from the upper mold (10) is greater than the outlet width on the side closer to the upper mold (10).

5. The aluminum hot extrusion die of a double-layered multi-bore ultra-thin high-precision water-cooling plate according to claim 4, characterized in that: Both the upper mold (10) and the lower mold (20) are made of H13 special mold steel.

6. The aluminum hot extrusion die of a double-layered multi-bore ultra-thin high-precision water-cooling plate according to claim 1, characterized in that: Both the upper mold (10) and the lower mold (20) are disc-shaped structures.

7. The aluminum hot extrusion die of a double-layered multi-bore ultra-thin high-precision water-cooling plate according to claim 1, characterized in that: The six sets of diversion holes (11) are symmetrically distributed with the central axis of the diversion bridge (13) as the center.

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