A die-casting mold

Abstract

The utility model relates to die casting die, and the fluid flow structure of die casting die has heat exchange end, flow guide portion, and the flow guide cavity of flow guide portion extends along the axial direction of flow guide portion, and along the axial direction of flow guide portion: heat exchange end is connected in one end of flow guide portion, and heat exchange end seals one end of flow guide cavity, and the one end side of wall portion corresponding to flow guide cavity is close to heat exchange end and has at least 2 turbulence bumps, and turbulence bump is protruding to flow guide cavity axis, and the wall of adjacent two turbulence bumps is defined as first turbulence wall, second turbulence wall, and the first distance d3 between first turbulence wall and second turbulence wall, and the distance between first turbulence wall and second turbulence wall is first distance d3 at the adjacent place of flow guide cavity axis, and the second distance d4 between first turbulence wall and second turbulence wall is far away from flow guide cavity axis, wherein, d4 / d3 range is between 5-20, can accelerate the cooling speed of casting, and the casting is cooled more fully, and obtains the alloy casting of compact structure.

Description

Technical Field

[0001] This utility model relates to the field of die casting technology, specifically to a die casting mold that can be used for casting alloys such as aluminum alloys and stainless steel. Background Technology

[0002] Alloy forming processes generally include cold working, forging, and casting. One type of casting process is mold casting, which involves pouring molten metal into a mold, allowing the molten metal to cool and solidify, forming an alloy blank with a specific shape and size. Mold casting is well-suited for complex alloy components, producing blanks that closely approximate the intended shape, reducing subsequent machining processes, and decreasing processing costs and time.

[0003] In mold casting, the cooling and solidification process of molten metal significantly affects the performance of alloy components. One type of runner plate casting, filled with coolant during operation, needs to withstand high-pressure conditions and possess high density. Die casting is used to manufacture runner plate castings, utilizing pressure to increase the speed at which molten metal fills the mold cavity. Slow cooling rates result in dense castings, but production is time-consuming and inefficient. Conversely, excessively fast cooling rates lead to high production efficiency but are prone to insufficient cooling, making it difficult to compensate for shrinkage and resulting in defects such as porosity and shrinkage cavities, and poor internal density. Utility Model Content

[0004] This application provides a die-casting mold that enables alloy casting with fast and sufficient cooling speed and good internal density of the casting.

[0005] The die-casting mold provided in this application has a fluid flow structure, which has a heat exchange end and a flow guide. The flow guide has a flow guide cavity that extends axially along the flow guide. Along the axial direction of the flow guide, the heat exchange end is connected to one end of the flow guide and closes one end of the flow guide cavity. The wall of the flow guide cavity has at least two turbulence protrusions on the side near the heat exchange end. The turbulence protrusions protrude along the axis of the flow guide cavity. The adjacent walls of two adjacent turbulence protrusions are defined as a first turbulence wall and a second turbulence wall, respectively. There is a first distance d3 between the first turbulence wall and the second turbulence wall. At the location adjacent to the axis of the flow guide cavity, the distance between the first turbulence wall and the second turbulence wall is the first distance d3. At the location away from the axis of the flow guide cavity, there is a second distance d4 between the first turbulence wall and the second turbulence wall. The range of d4 / d3 is between 5 and 20.

[0006] Thus, the die-casting mold has a fluid flow structure, which has a heat exchange end and a flow guide. The heat exchange end closes the flow guide cavity of the flow guide. The wall of the flow guide cavity has at least two turbulence protrusions on the side near the heat exchange end. The turbulence protrusions protrude along the axis of the flow guide cavity. The ratio of the second distance d4 between the first turbulence wall and the second turbulence wall to the first distance d3 between the first turbulence wall and the second turbulence wall, d4 / d3, is in the range of 5-20. The turbulence protrusions are positioned near the heat exchange end. The cooling fluid flows in the guide cavity and then to the heat exchange end, where it transfers heat and cools the casting in the die-casting mold. The presence of the turbulence protrusions changes the flow pattern of the cooling fluid, dividing it into multiple streams and improving heat exchange efficiency. Near the axis of the guide cavity, the distance between the first and second turbulence walls is a first distance d3. The ratio of the second distance d4 between the first and second turbulence walls to the first distance d3 is controlled within the aforementioned range. This slows down the flow velocity of the superheated fluid from the side wall of the heat exchange end to the axis of the guide cavity during the fluid return state after heat exchange, ensuring sufficient heat exchange. In this way, the cooling rate of the casting can be accelerated, and the casting can be cooled more thoroughly, resulting in a dense alloy casting. Attached Figure Description

[0007] Figure 1 This is a perspective view of the fluid flow structure in one embodiment;

[0008] Figure 2 This is a schematic diagram of the overall fluid flow structure in another embodiment;

[0009] Figure 3 for Figure 2 Schematic diagram of cross-section of fluid flow structure AA' in the middle;

[0010] Figure 4 for Figure 2 Top-view perspective diagram of the fluid flow structure;

[0011] Figure 5 for Figure 2 Side perspective view of the fluid flow structure in the middle section;

[0012] Figure 6 for Figure 5 Enlarged schematic diagram of section B of the fluid flow structure;

[0013] Figure 7 for Figure 6 A schematic diagram of the cross-section of the fluid flow structure. Detailed Implementation

[0014] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0015] One method of alloy casting is ingot casting, which allows for the formation of castings with relatively complex structures. Controlling casting pressure and cooling rate can achieve highly efficient casting production, further reducing production costs. However, this also brings some problems. For example, issues such as porous internal structures and air bubbles in the casting can affect its strength and subsequent welding. Therefore, to reduce these problems, one approach is to reduce casting pressure and cooling rate, which inevitably leads to a decrease in production efficiency.

[0016] This application provides a die-casting mold that can achieve a faster cooling rate and reduce problems such as porosity and air bubbles inside the casting, thereby improving the density of the internal structure of the casting.

[0017] Specifically, a die-casting mold has a fluid flow structure 002, which includes a heat exchange end 2 and a flow guide 1. The flow guide 1 has a flow guide cavity 12, which extends axially along the flow guide 1. Along the axial direction of the flow guide cavity 12, the heat exchange end 2 is connected to one end of the flow guide 1, and the heat exchange end 2 closes one end opening of the flow guide cavity 12. The wall portion 11 corresponding to the flow guide cavity 12 has at least two turbulence protrusions 111 near the end of the heat exchange end 2, and the turbulence protrusions 111 guide the axis of the flow guide cavity 12. The protrusions, two adjacent turbulence protrusions 111, are respectively a first turbulence wall 121a and a second turbulence wall 121b. There is a first distance d3 between the first turbulence wall 121a and the second turbulence wall 121b. At the location adjacent to the axis of the flow guide cavity 12, the distance between the first turbulence wall 121a and the second turbulence wall 121b is the first distance d3. At the location away from the axis of the flow guide cavity 12, there is a second distance d4 between the first turbulence wall 121a and the second turbulence wall 121b. The range of d4 / d3 is between 5 and 20.

[0018] The die-casting mold has a body part 001, and a fluid flow structure 002 is located in the body part 001. Several fluid flow structures 002 can be designed in the body part 001 according to the structure of the casting. The cooling fluid mainly exchanges heat with the casting through the heat exchange end 2 to cool the casting. The fluid flow structure 002 and the body part 001 can be set separately, or the fluid flow structure 002 and the body part 001 can be an integral structure.

[0019] With this configuration, the cooling fluid flows through the guide section 1 to the heat exchange end 2. At least two turbulence protrusions 111 are provided on the side wall of the wall section 11 near the heat exchange end 2. When the cooling fluid flows through the turbulence protrusions 111, the flow pattern of the cooling fluid changes, and the fluid is divided into several paths, which improves the heat exchange efficiency between the cooling fluid and the heat exchange end 2 and can increase the cooling rate. The ratio of the second distance d4 between the first turbulence wall 121a and the second turbulence wall 121b and the first distance d3 between the first turbulence wall 121a and the second turbulence wall 121b is controlled within the range of 5-20. Near the axis of the guide cavity 12, the distance between the first turbulence wall 121a and the second turbulence wall 121b is the first distance d3, which can reduce the flow velocity of the fluid in the guide cavity axis space after heat exchange, so as to achieve sufficient heat exchange, thereby reducing problems such as casting porosity and air holes, and improving the density of the internal structure of the casting.

[0020] In some embodiments, the first distance d3 is designed to be the minimum distance between the first turbulence wall 121a and the second turbulence wall 121b, and the second distance d4 is designed to be the maximum distance between the first turbulence wall 121a and the second turbulence wall 121b. This minimizes the flow velocity of the fluid after heat exchange from the sidewall 11 to the axis of the guide cavity 12, resulting in more efficient heat exchange.

[0021] The turbulence protrusions 111 are designed and distributed according to heat dissipation requirements and mold shape. There can be 2 or 3 turbulence protrusions 111, which are set according to the cooling fluid flow rate and the area of ​​the heat exchange end 2 in contact with the casting. The turbulence protrusions 111 divide the cooling fluid into multiple streams of fluid arranged around the axis of the fluid flow structure 002, thereby improving heat exchange efficiency.

[0022] Specifically in one embodiment, such as Figure 1 As shown, the turbulence protrusions 111 are arranged along the outer periphery of the axis of the fluid flow structure 002. The guide section 1 has a guide cavity 12. One axial end of the guide section 1 is connected to the heat exchange end 2, and the other end of the guide section 1 away from the heat exchange end 2 is connected to the fluid inlet section 3. The fluid inlet section 3 has a fluid inlet cavity 33, which communicates with the guide cavity 12. The fluid inlet section 3 is connected to an external cooling fluid pipeline, enabling the cooling fluid to be introduced into / out of the fluid flow structure 002.

[0023] The fluid conduction structure 002 and the die-casting mold body 001 can be separately configured. The fluid inlet 3 has at least one mounting protrusion 31, perpendicular to the axis of the fluid flow structure 002, and the width of the mounting protrusion 31 is greater than the width of the guide part 1; the mounting protrusion 31 has a positioning groove 32, which is recessed in the axis of the fluid flow structure 002. Thus, the mounting protrusion 31, with its positioning groove 32, facilitates the installation and disassembly of the fluid conduction structure 002 and the die-casting mold body 001, thereby facilitating the maintenance or replacement of the cooling fluid conduction structure 002.

[0024] refer to Figure 1 The cooling fluid conduction structure 002 has an arc-shaped groove 004 at its end away from the fluid inlet 3. The presence of this arc-shaped groove 004 allows the turbulence protrusions 111 to be configured as a group of unequal-height turbulence protrusions. At least a portion of a turbulence groove 121 is formed between two turbulence protrusions 111. Projected along the axial direction of the flow guide cavity 12, the projected shape of a single turbulence groove 121 is approximately triangular, with one corner of the triangle pointing towards the axis of the flow guide cavity 12. The projected shape of a single turbulence groove 121 can also be approximately petal-shaped. Compared to a triangular projection, the internal corners of the turbulence groove 121 are similar to rounded corners. The ratio of the second distance d4 between the first turbulence wall 121a and the second turbulence wall 121b to the first distance d3 between the first turbulence wall 121a and the second turbulence wall 121b is 5. According to the actual application design, the ratio of the second distance d4 between the first baffle wall 121a and the second baffle wall 121b to the first distance d3 between the first baffle wall 121a and the second baffle wall 121b can also be 6, 10, 12, 18, 20, etc.

[0025] Thus, projected along the axial direction of the guide cavity 12, the projection of the several turbulence grooves 121 formed by the several turbulence protrusions 111 is flower-shaped, and the several turbulence grooves 121 are interconnected. During the alloy casting process, the cooling fluid flows to the turbulence protrusions 111, and the fluid is divided into several paths. These cooling fluids mainly exchange heat with the casting in the mold cavity through the heat exchange end 2, resulting in more complete heat exchange and more uniform cooling of each area of ​​the casting at the point of cooling.

[0026] The turbulence protrusion 111 protrudes along the axis of the guide cavity 12. In the height direction of the cooling fluid conduction structure 002, the total height of at least two turbulence protrusions 111 accounts for approximately 10%-20% of the total height of the guide section 1. In this embodiment, the total height of at least two flow-disrupting protrusions 111 can be understood as the total height of the flow-disrupting protrusions 111 in the axial direction of the fluid conduction structure 002. When there are several flow-disrupting protrusions 111 along the axial direction of the fluid conduction structure 002, the sum of the axial heights of the flow-disrupting protrusions 111 is the total height of the flow-disrupting protrusions 111. When the flow-disrupting protrusions 111 are arranged circumferentially along the fluid conduction structure 002, the highest height of the flow-disrupting protrusions 111 in the axial direction of the fluid conduction structure 002 is the total axial height of the flow-disrupting protrusions 111. When the flow-disrupting protrusions 111 are arranged both circumferentially and axially along the fluid conduction structure 002, the sum of the axial heights of the flow-disrupting protrusions 111 is the total height of the flow-disrupting protrusions 111. In other embodiments, this calculation method can be referred to. Specifically, in this embodiment, the total height of the overall flow-disrupting protrusions 111 is set to 10% of the total height of the flow guide 1. This ensures sufficient heat exchange and makes the mold processing easier.

[0027] Furthermore, the heat exchange end 2 has a top end 21 and a transition section 22. The transition section 22 connects to the flow guide 1. The end of the transition section 22 away from the flow guide 1 is connected to the top end 21. The end of the top end 21 away from the transition section 22 has a groove 211, which is recessed in the direction of the flow guide 1. The groove 211 is approximately an arc-shaped groove. In this way, the heat exchange end 2 can be designed to match the shape of the product and the shape of the cooling zone. The recess 211 is recessed in the direction of the flow guide 1, which reduces the heat exchange distance between the casting in the mold and the flow guide cavity 12, thereby improving the heat exchange efficiency.

[0028] In another embodiment, such as Figures 2 to 7 As shown, the fluid conduction structure 002 and the main body 001 are separately arranged. The fluid flow structure 002 can be applied to the casting of aluminum alloy flow channel plates. At least two turbulence protrusions 111 are evenly distributed around the circumference of the fluid flow structure 002. When projected along the axial direction of the fluid flow structure 002, the turbulence protrusions 111 are roughly distributed on the same circumference on the sidewalls near the axis of the fluid flow structure 002.

[0029] like Figure 6 As shown, six turbulence protrusions 111 can be arranged around the axis of the fluid flow structure 002. The portion forming a turbulence groove 121 between two turbulence protrusions 111, projected along the axis of the fluid flow structure 002, shows that the turbulence groove 121 formed between at least two turbulence protrusions 111 is roughly flower-shaped. This arrangement can form multiple cooling fluid paths, improve heat exchange efficiency, and increase the cooling rate of the casting.

[0030] refer to Figure 7The turbulence channel 121 has a first turbulence wall 121a, a second turbulence wall 121b, and a turbulence bottom wall 121c. The two ends of the turbulence bottom wall 121c are respectively connected to the first turbulence wall 121a and the second turbulence wall 121b. Near the axis of the guide cavity 12: the distance between the first turbulence wall 121a and the second turbulence wall 121b is a first distance; the point where the first turbulence wall 121a connects to the turbulence bottom wall 121c is connected to the second turbulence wall 121b. The distance at point c is the second distance d4 between the first turbulence wall 121a and the second turbulence wall 121b, and extends from the axis of the guide cavity 12 towards the bottom wall 121c of the turbulence. The distance between the first turbulence wall 121a and the second turbulence wall 121b gradually increases. The ratio of the second distance d4 between the first turbulence wall 121a and the second turbulence wall 121b to the first distance d3 between the first turbulence wall 121a and the second turbulence wall 121b is d4 / d3, which is 8. In this embodiment, the connecting wall between the first turbulence wall 121a and the bottom turbulence wall 121c includes a first arc wall R1, and the connecting wall between the second turbulence wall 121b and the bottom turbulence wall 121c includes a second arc wall R2. The radius r01 of the first arc wall R1 and the radius r02 of the second arc wall R2 have the following relationship: (r02-r01) / r01 is less than or equal to 5% or (r01-r02) / r02 is less than or equal to 5%. Furthermore, the radius r01 of the first arc wall R1, the radius r02 of the second arc wall R2, and the second distance d4 between the first turbulence wall 121a and the second turbulence wall 121b have the following relationship: r01 / d4 ranges from 10% to 25%, and r02 / d4 ranges from 10% to 25%.

[0031] In this way, the cooling fluid can better flow along the wall surface of the bottom wall 121c when it flows between the first turbulence wall 121a and the bottom turbulence wall 121c, and the second turbulence wall 121b and the bottom turbulence wall 121c. The fluid on the side of the bottom turbulence wall 121c near the guide cavity 12 can exchange heat with the die-casting part. Furthermore, the aforementioned first arc wall R1 and second arc wall R2 can adapt to industrial processing technology and facilitate mold processing and manufacturing.

[0032] In this embodiment, the section of the wall 11 corresponding to the flow guiding cavity 12 with the turbulence protrusion 111 is defined as the turbulence section 113. Along the direction from the flow guiding portion 1 to the heat exchange end 2, the inner wall width of the turbulence section 113 gradually decreases in the direction perpendicular to the axis of the fluid flow structure 002. For example... Figure 3 As shown, the width of the turbulence section 113, perpendicular to the axis of the fluid flow structure 002, at the end connected to the heat exchange end 2 is d1. The portion of the guide section 1 without the turbulence protrusion 111 is defined as the direct flow section 114, perpendicular to the axis of the fluid flow structure 002. The inner width of the direct flow section 114 is d2, where d1 is less than d2. This improves the flow collection of the cooling fluid and increases the heat exchange efficiency at the heat exchange end 2.

[0033] Furthermore, along the direction of the guide section 1 toward the heat exchange end 2 in the axial direction of the fluid flow structure 002, the turbulence section 113 has a first turbulence section 1131 and a second turbulence section 1132. The end of the first turbulence section 1131 away from the heat exchange end 2 is connected to a direct flow section 114. The end of the first turbulence section 1131 near the heat exchange end 2 is connected to the second turbulence section 1132. The end of the second turbulence section 1132 away from the first turbulence section 1131 is connected to the heat exchange end 2. Along the direction of the direct flow section 114 toward the heat exchange end 2, the width of the second turbulence section 1132 perpendicular to the axial direction of the fluid flow structure 002 gradually decreases.

[0034] Furthermore, the total height of the turbulence section 113 is h1, and the total height of the guide section 1 is h2. The ratio of h1 to h2 is approximately 18%. This allows the cooling fluid to have a certain flow velocity, effectively improves the heat exchange rate, and minimizes the increase in the processing difficulty of the mold, thus balancing the improvement of the heat exchange effect with the processing difficulty of the mold.

[0035] A mounting protrusion 31 is provided on the end side of the flow guide 1 away from the heat exchange end 2. Multiple mounting protrusions 31 can be provided. In this embodiment, three mounting protrusions 31 are provided and distributed along the axial extension direction of the flow guide 1. One mounting protrusion 31 near the turbulence section 113 has a positioning groove 32, which facilitates the installation of the separately configured fluid flow structure 002.

[0036] In this application, "height" can be understood as approximately... Figure 1 The h-direction shown is the axial direction of the fluid flow structure 2. Furthermore, in specific implementations of this application, the inlet or outlet of the cooling fluid can be designed according to the actual application.

[0037] The above examples illustrate the principles and implementation methods of this utility model. The descriptions of these embodiments are merely for the purpose of helping to understand the method and core ideas of this utility model. It should be noted that those skilled in the art can make various improvements and modifications to this utility model without departing from its principles, and these improvements and modifications also fall within the protection scope of this utility model.

Claims

1. A die-casting mold, characterized in that: The die-casting mold has a fluid flow structure (002), which has a heat exchange end (2) and a flow guide (1). The flow guide (1) has a flow guide cavity (12), which extends axially along the flow guide (1). Along the axial direction of the flow guide (1), the heat exchange end (2) is connected to one end of the flow guide (1), and the heat exchange end (2) closes one end of the flow guide cavity (12). The wall (11) of the flow guide cavity (12) has at least two turbulence protrusions (111) near the end of the heat exchange end (2), and the turbulence protrusions (111) extend toward the flow guide cavity (12). 2) Axis protrusion; the adjacent walls of two adjacent turbulence protrusions (111) are defined as the first turbulence wall (121a) and the second turbulence wall (121b), respectively. The first turbulence wall (121a) and the second turbulence wall (121b) have a first distance d3. At the location adjacent to the axis of the flow guide cavity (12): the distance between the first turbulence wall (121a) and the second turbulence wall (121b) is the first distance d3. At the location away from the axis of the flow guide cavity (12): the distance between the first turbulence wall (121a) and the second turbulence wall (121b) is a second distance d4, wherein d4 / d3 ranges from 5 to 20.

2. The die-casting mold according to claim 1, characterized in that: The space between two adjacent turbulence protrusions (111) is defined as a turbulence groove (121). The first turbulence wall (121a) and the second turbulence wall (121b) are at least parts of the wall portion (11) corresponding to the turbulence groove (121). The wall portion (11) corresponding to the turbulence groove (121) includes a turbulence bottom wall (121c). The two ends of the turbulence bottom wall (121c) are respectively connected to the first turbulence wall (121a) and the second turbulence wall (121b). The distance between the first turbulence wall (121a) connected to the turbulence bottom wall (121c) and the second turbulence wall (121b) connected to the turbulence bottom wall (121c) is the second distance d4.

3. The die-casting mold according to claim 2, characterized in that: The turbulence protrusions (111) are circumferentially distributed around the axis of the flow guide cavity (12). Projected along the axial direction of the flow guide cavity (12), at least one of the turbulence grooves (121) has a projection shape that is approximately triangular or petal-shaped. The connecting wall between the first turbulence wall (121a) and the turbulence bottom wall (121c) includes a first arc wall (R1), and the connecting wall between the second turbulence wall (121b) and the turbulence bottom wall (121c) includes a second arc wall (R2). The radius of the first arc wall is defined as r01, and the radius of the second arc wall is defined as r02, satisfying the following relationship: (r02-r01) / r01 is less than or equal to 5% or (r01-r02) / r02 is less than or equal to 5%; and... The radius r01 of the first arc wall (R1), the radius r02 of the second arc wall, and the second distance d4 between the first turbulence wall (121a) and the second turbulence wall (121b) have the following relationship: r01 / d4 is in the range of 10% to 25%, and r02 / d4 is in the range of 10% to 25%.

4. The die-casting mold according to claim 1 or 2, characterized in that: Along the axial direction of the flow guide cavity (12), the total height of the turbulence protrusion (111) is defined as h1, and the total height of the flow guide (1) is defined as h2. The total height h1 of the turbulence protrusion (111) and the total height h2 of the flow guide (1) are related as follows: h1 / h2 is in the range of 10% to 20%.

5. The die-casting mold according to claim 2 or 3, characterized in that: The first turbulence wall (121a) and the second turbulence wall (121b) are respectively connected to the two ends of the turbulence bottom wall (121c). In the direction of extension of the axis of the flow guide cavity (12) to the turbulence bottom wall (121c), the distance between the first turbulence wall (121a) and the second turbulence wall (121b) gradually increases, and when projected along the axis of the flow guide cavity (12), the overall projection of all the turbulence protrusions (111) is roughly flower-shaped.

6. The die-casting mold according to any one of claims 1-3, characterized in that: The section of the wall (11) corresponding to the flow guide cavity (12) with the turbulence protrusion (111) is defined as the turbulence section (113). In the direction extending from the flow guide (1) to the heat exchange end (2), the turbulence section (113) has a first turbulence section (1131) and a second turbulence section (1132). The first turbulence section (1131) is connected to a direct flow section (114) at one end away from the heat exchange end (2). The first turbulence section (1131) is connected to the second turbulence section (1132) at one end near the heat exchange end (2). The second turbulence section (1132) is connected to the heat exchange end (2) at one end away from the first turbulence section (1131). In the direction extending from the direct flow section (114) to the heat exchange end (2), the width of the second turbulence section (1132) in the direction perpendicular to the axis of the fluid flow structure (002) gradually decreases.

7. The die-casting mold according to any one of claims 1-3, characterized in that: The heat exchange end (2) has a top end (21) and a transition section (22). The transition section (22) is connected to the flow guide (1). The end of the transition section (22) away from the flow guide (1) is connected to the top end (21). The end of the top end (21) away from the transition section (22) has a groove (211). The groove (211) is recessed in the direction of the flow guide (1). The groove (211) is approximately an arc-shaped groove.

8. The die-casting mold according to any one of claims 1-3, characterized in that: The fluid flow structure (002) has a fluid inlet (3), which is connected to the end of the guide section (1) away from the heat exchange end (2). The fluid inlet (3) has a fluid inlet cavity (33), which is connected to the guide cavity (12). The die-casting mold has a body part (001), and the fluid flow structure (002) is located on the body part (001). The fluid flow structure (002) and the body part (001) are integrally formed, or the fluid flow structure (002) and the body part (001) are separately set.

9. The die-casting mold according to claim 8, characterized in that: The fluid inlet (3) has at least one mounting protrusion (31) perpendicular to the axis of the fluid flow structure (002), and the width of the mounting protrusion (31) is greater than the width of the guide (1); the mounting protrusion (31) has a positioning groove (32) which is recessed in the direction of the axis of the fluid flow structure (002).

10. The die-casting mold according to any one of claims 1-3 or 9, characterized in that: The fluid flow structure (002) can be applied to the casting of aluminum alloy flow channel plates. At least two of the turbulence protrusions (111) are distributed circumferentially along the fluid flow structure (002). Projected along the axial direction of the fluid flow structure (002), the sidewalls of the turbulence protrusions (111) near the axis of the fluid flow structure (002) are roughly distributed on the same circumference. Projected along the axial direction of the fluid flow structure (002), the overall projection of at least two of the turbulence protrusions (111) is roughly flower-shaped. The ratio d4 / d3 of the second distance d4 between the first turbulence wall (121a) and the second turbulence wall (121b) and the second distance d3 between the first turbulence wall (121a) and the second turbulence wall (121b) is between 5 and 8.

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