A semi-solid magnesium alloy forming equipment with heat exchange control function

By utilizing the residual heat generated from the hot melting of magnesium alloy in a semi-solid magnesium alloy forming equipment, and employing a release agent and an inert gas medium for circulation, the problem of heat waste is solved, the recycling of residual heat and preheating of the forming cavity are realized, thereby improving forming efficiency and energy efficiency.

CN116727631BActive Publication Date: 2026-04-03江苏宜镁泰精密制造有限公司
View PDF 1 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-06-15
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

In the semi-solid magnesium alloy forming process, there is a problem that the heat cannot be fully utilized during temperature changes and additional electrical energy is required to raise the temperature.

Method used

A semi-solid magnesium alloy forming equipment with heat exchange control function is adopted. The residual heat generated when the magnesium alloy raw material is melted is used to absorb and store the residual heat through a release agent and an inert protective gas as a medium, and then fed back to the forming cavity to realize the recycling of heat.

Benefits of technology

It effectively utilizes the residual heat generated during the hot melting process, reduces additional power consumption, and improves the energy efficiency of the molding process and the preheating effect of the molding cavity.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN116727631B_ABST
    Figure CN116727631B_ABST
Patent Text Reader

Abstract

This invention discloses a semi-solid magnesium alloy forming device with heat exchange control function, relating to the field of magnesium alloy forming technology. Based on the operating principle of semi-solid magnesium alloy forming, this invention primarily addresses the secondary utilization of waste heat generated during the hot melting of magnesium alloy raw material particles. The principle is as follows: the generated waste heat is used to asynchronously / synchronously heat the gas / liquid mixture. During the heating process: firstly, the liquid medium absorbs the waste heat based on the heat exchange mechanism, achieving a short-term cooling effect on the slurry preparation tube. Then, the cooled temperature is used to heat the gas medium, thus "temperature storage" for either the gas or liquid medium. Finally, the hot gas medium "pumps" the hot liquid medium into the forming cavity of the forming mold, preheating the forming cavity. The ultimate effect is to "apply" the waste heat generated during hot melting to the forming cavity, fully utilizing the waste heat.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This invention relates to the field of magnesium alloy forming technology, and more specifically to a semi-solid magnesium alloy forming device with heat exchange control function. Background Technology

[0002] Magnesium alloy, as the lightest engineering metal material, is hailed as the "green engineering material of the 21st century". Magnesium alloy is used as raw material to produce laptop exterior parts, such as laptop shells, through semi-solid injection molding technology. The process includes: spraying release agent - mold closing - injection - molding - removing the molded part.

[0003] More specifically: Magnesium alloy raw materials are rapidly melted into a semi-solid slurry in a semi-solid slurry preparation tube under negative pressure and gravity at a temperature range of 549–593°C. This semi-solid slurry is then injected into a molding die under a high pressure environment of 100 MPa. After cooling, the magnesium alloy product is obtained. It should be noted that when spraying the mold release agent onto the molding die, residual heat is applied to the molding cavity to maintain a temperature range of 355–370°C. Furthermore, the semi-solid slurry in the preparation tube retains a high-temperature environment after injection into the molding cavity. Therefore, during the next injection of magnesium alloy raw materials, the ambient temperature in the preparation tube will not rapidly melt the magnesium alloy raw materials. Instead, the raw materials will be simultaneously melted by the high-temperature environment after injection. Otherwise, uneven melting of the magnesium alloy raw materials would affect the subsequent molding process.

[0004] Furthermore, it should be noted again that the reheating process of the semi-solid slurry preparation tube and the residual heat stage of the molding die both consume additional electrical energy, and the "cooling" process of the semi-solid slurry tube is a waste of heat. Summary of the Invention

[0005] The purpose of this invention is to provide a semi-solid magnesium alloy forming device with heat exchange control function, which addresses the current temperature change process in semi-solid magnesium alloy forming, specifically the waste of some heat due to insufficient utilization, and the need for additional electrical energy input for heating.

[0006] The objective of this invention can be achieved through the following technical solution: A semi-solid magnesium alloy forming device with heat exchange control function, comprising a forming die assembly and a slurry output assembly. An assembly slurry pipe is provided at the output position of the slurry output assembly, and a control panel is provided on the slurry output assembly. The slurry output assembly includes an outer sleeve, an outer movable cylinder, a slurry preparation pipe, and a pressure assembly. The outer movable cylinder is rotatably connected to the slurry preparation pipe. A particle processing structure is provided between the slurry preparation pipe and the pressure assembly. The outer sleeve is fixedly connected to the slurry preparation pipe, and the assembly slurry pipe is installed on the slurry preparation pipe. At one end of the assembly, the slurry pipe and the outer sleeve are rotatably connected. A gas-liquid conversion chamber is provided in the outer movable cylinder. A partition ring is slidably installed in the gas-liquid conversion chamber along the length of the slurry preparation pipe. A liquid chamber and a gas chamber are respectively set on the left and right sides of the partition ring in the gas-liquid conversion chamber. The liquid chamber is located close to the outer sleeve. An external transfer pipe and a return liquid pipe are respectively connected to the outer sleeve. A liquid inlet pipe, an air inlet pipe, and a return air pipe are connected to the position of the outer movable cylinder corresponding to the gas-liquid conversion chamber. A gas-liquid transfer chamber is provided inside the outer sleeve corresponding to the position of the external transfer pipe and the return liquid pipe.

[0007] The particle processing structure is further configured such that it includes a heating ring assembly, a spiral pusher, and a high-pressure pump. The heating ring assembly is installed inside the slurry preparation pipe, and the installation position of the heating ring assembly matches that of the gas-liquid conversion chamber.

[0008] The configuration is further defined as follows: the spiral pusher is disposed inside the slurry preparation pipe, and the high-pressure pump is disposed on the right side of the slurry preparation pipe.

[0009] The configuration is further defined as follows: each of the liquid inlet pipe, air inlet pipe, and air return pipe is equipped with a solenoid valve, with the liquid inlet pipe positioned on the left side of the liquid chamber and the air inlet pipe and air return pipe positioned on the right side of the air chamber. The air inlet pipe and air return pipe are arranged on the external movable cylinder in a top-to-bottom direction, and a pressure sensor is installed on the external movable cylinder corresponding to the outer wall of the air chamber.

[0010] Further configuration: the external transfer pipe and the return pipe are arranged sequentially on the external sleeve from top to bottom, the end of the return pipe is connected to the external transfer pipe, and the end of the return pipe acts on the molding die assembly.

[0011] A further configuration is provided: a switching plate is installed on the side of the outer sleeve near the outer movable cylinder, and the switching plate is rotatably connected to the outer movable cylinder.

[0012] Further configuration: the switching plate has multiple slits, and the gas-liquid conversion chamber has multiple air ports on the outer wall near the switching plate. The air ports and slits are arranged in a circular array along the center point of the slurry preparation tube, and the air ports and slits are staggered.

[0013] The configuration is further defined as follows: a servo motor is installed on the high-pressure pump, a drive gear is installed at the output end of the servo motor, and a gear groove is formed on the outer circumferential wall of the external movable cylinder, with the drive gear meshing with the gear groove.

[0014] The present invention has the following beneficial effects:

[0015] 1. This invention is based on the operating principle of semi-solid magnesium alloy molding, mainly targeting the heat conversion process in the production process. Specifically, it uses the residual heat generated when magnesium alloy raw material particles are melted as the "energy source," and uses a mold release agent and an inert protective gas as the liquid and gas media in the circulation process. First, the mold release agent is explained as follows: the mold release agent is quickly injected into the gas-liquid conversion chamber to quickly "absorb" the residual heat, and the residual heat can also be "absorbed" again by the gas medium, so that the two media serve as "reservoir media" for heat. The purpose is to "store" the residual heat. Then, the two media are "input" into the molding cavity in the molding mold through the circulation structure. Again, the heat in the two media is "feedback" to the molding cavity through the heat exchange principle, so as to achieve the purpose of residual heat in the molding cavity.

[0016] 2. To further explain using the two media mentioned above: the release agent, while serving as a liquid "reserve medium," still retains its mold-release properties during the molding process. Similarly, the inert protective gas used can serve as a protective medium during the molding process. Furthermore, the external transfer pipe is connected to the return gas pipe. The purpose of this is to use the heated gas medium to squeeze the heated liquid medium from the gas-liquid transfer chamber into the molding cavity, thus enabling the gas and liquid to interact.

[0017] 3. For the gas-liquid conversion chamber, it is essentially an independent cavity. Theoretically, it is divided into a liquid chamber and a gas chamber by setting a partition ring. The boundary between the liquid chamber and the gas chamber is mainly determined by switching the position of the partition ring. Specifically, when the partition ring moves to the left and reaches the end position, the gas-liquid conversion chamber is a gas chamber. Conversely, when the partition ring moves to the left and reaches the end position, the gas-liquid conversion chamber is a liquid chamber. This allows the two media to independently "absorb" waste heat. The purpose is to better coordinate the flow linkage of the gas or liquid media. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of a semi-solid magnesium alloy forming device with heat exchange control function proposed in this invention.

[0020] Figure 2 This is a schematic diagram of the slurry output component in a semi-solid magnesium alloy forming device with heat exchange control function proposed in this invention.

[0021] Figure 3 In the semi-solid magnesium alloy forming equipment with heat exchange control function proposed in this invention Figure 2 Side view;

[0022] Figure 4 In the semi-solid magnesium alloy forming equipment with heat exchange control function proposed in this invention Figure 2 Cross-sectional view;

[0023] Figure 5 This is a cross-sectional view of the slurry preparation pipe component in a semi-solid magnesium alloy forming device with heat exchange control function proposed in this invention.

[0024] In the diagram: 1. Molding mold assembly; 2. Control panel; 3. Slurry output assembly; 4. Slurry assembly pipe; 5. External sleeve; 6. Return pipe; 7. External transfer pipe; 8. Inlet pipe; 9. Air inlet pipe; 10. Pressure sensor; 11. External movable cylinder; 12. Air return pipe; 13. Gear groove; 14. Drive gear; 15. Servo motor; 16. Solenoid valve; 17. Switching plate; 18. Isolation ring; 19. Slurry preparation pipe; 20. Heating ring assembly; 21. Gas-liquid conversion chamber; 22. Spiral pusher; 23. Gas-liquid transfer chamber. Detailed Implementation

[0025] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] Example 1

[0027] For the semi-solid magnesium alloy forming process, the main focus is on the hot-melt process. This involves rapidly melting magnesium alloy particles at a temperature between 549 and 593°C, and then extruding the molten magnesium alloy into the forming cavity of a die under high pressure. During this process, the residual heat generated is relatively high. Furthermore, when hot-melting the magnesium alloy raw material again, it is necessary to ensure that the temperature in the slurry preparation tube does not become too high, meaning that the residual heat needs to be rapidly reduced. Consequently, this residual heat is not utilized. Therefore, the following technical solution is proposed:

[0028] Reference Figures 1-5 This embodiment discloses a semi-solid magnesium alloy forming device with heat exchange control function, including a forming mold assembly 1 and a slurry output assembly 3. An assembly slurry pipe 4 is provided at the output position of the slurry output assembly 3, and a control panel 2 is provided on the slurry output assembly 3. The slurry output assembly 3 includes an outer sleeve 5, an outer movable cylinder 11, a slurry preparation pipe 19, and a pressure assembly. The outer movable cylinder 11 is rotatably connected to the slurry preparation pipe 19. A particle processing structure is provided between the slurry preparation pipe 19 and the pressure assembly. The outer sleeve 5 is fixedly connected to the slurry preparation pipe 19. The assembly slurry pipe 4 is installed at one end of the slurry preparation pipe 19, and the assembly slurry pipe 4 is rotatably connected to the outer sleeve 5. A gas-liquid conversion chamber 21 is provided in the outer movable cylinder 11, and the gas-liquid conversion chamber 21 extends along the length of the slurry preparation pipe 19. A partition ring 18 is slidably installed, and a liquid chamber and a gas chamber are respectively set on the left and right sides of the partition ring 18 in the gas-liquid conversion chamber 21. The liquid chamber is set close to the outer sleeve 5. An external transfer pipe 7 and a return liquid pipe 6 are respectively connected to the outer sleeve 5. An inlet pipe 8, an air inlet pipe 9 and a return air pipe 12 are connected to the position of the external movable cylinder 11 corresponding to the position of the gas-liquid conversion chamber 21. A gas-liquid transfer chamber 23 is opened in the inner position of the outer sleeve 5 corresponding to the position of the external transfer pipe 7 and the return liquid pipe 6. The particle processing structure includes a heating ring assembly 20, a spiral pusher 22 and a high-pressure pump. The heating ring assembly 20 is installed inside the slurry preparation pipe 19, and the installation position of the heating ring assembly 20 matches that of the gas-liquid conversion chamber 21. The spiral pusher 22 is set inside the slurry preparation pipe 19, and the high-pressure pump is set on the right side of the slurry preparation pipe 19.

[0029] Operating Principle: First, it should be noted that this invention only addresses the hot-melting process in semi-solid magnesium alloy forming equipment, and does not specifically limit the forming mold group 1 or the high-pressure injection system. The key focus is on heat exchange during the hot-melting process, as detailed below:

[0030] As shown above, after the magnesium alloy particles are put into the slurry preparation tube 19, the heating ring group 20 is used to quickly heat the temperature to the range of 549-593℃, so that the magnesium alloy raw material is quickly melted. Then, the melted liquid is injected into the molding mold group 1 using a high-pressure injection system. This will not be explained here. However, when melting the magnesium alloy raw material, the air inlet pipe 9 needs to be connected to the gas injection equipment. The gas injection equipment can be composed of an air compressor and an inert gas storage tank. The process is as follows: the air compressor blows the inert gas from the inert gas storage tank into the gas-liquid conversion chamber 21. Under the action of the inert gas, the partition ring 18 is pushed to the left until the gas-liquid conversion chamber 21 is completely formed into a gas chamber. Then, when the magnesium alloy raw material is melted, the residual heat generated directly acts on the inert gas to heat the inert gas. During this process, when the inert gas "absorbs" heat, it will not affect the melting process of the magnesium alloy raw material.

[0031] After the hot-melted magnesium alloy is injected into the molding module 1, it is necessary to prepare for the next hot-melting of magnesium alloy. Therefore, the "heating position" of the slurry preparation pipe 19 needs to be cooled down. For this purpose, the liquid inlet pipe 8 needs to be connected to the liquid injection structure. The liquid injection structure can consist of a booster pump and a mold release agent storage tank. The booster pump is used to squeeze the mold release agent from the mold release agent storage tank into the gas-liquid conversion chamber 21, so that the gas-liquid conversion chamber 21 becomes a liquid chamber. After the mold release agent is injected into the liquid chamber, it quickly "absorbs" the residual heat to form an asynchronous or synchronous heating process.

[0032] In conjunction with the above, it can be explained that inert gas and mold release agent can be used as "absorption and storage medium" for residual heat, so that the residual heat generated during the hot melting process can be fully utilized, and then the inert gas and mold release agent can be circulated successively through a gas-liquid circulation method.

[0033] Example 2

[0034] This section provides supplementary explanation of the gas-liquid circulation process in Example 1:

[0035] Solenoid valves 16 are installed on the liquid inlet pipe 8, air inlet pipe 9, and air return pipe 12. The liquid inlet pipe 8 is located on the left side of the liquid chamber, while the air inlet pipe 9 and air return pipe 12 are located on the right side of the air chamber. The air inlet pipe 9 and air return pipe 12 are arranged from top to bottom on the external movable cylinder 11. A pressure sensor 10 is installed on the outer wall of the external movable cylinder 11 corresponding to the air chamber. The external transfer pipe 7 and liquid return pipe 6 are arranged sequentially from top to bottom on the external sleeve 5. The end of the air return pipe 12 is connected to the external transfer pipe 7, and the end of the liquid return pipe 6 acts on the molding die assembly 1. A switching plate 17 is installed on one side near the external movable cylinder 11. The switching plate 17 is rotatably connected to the external movable cylinder 11. Multiple slits are opened on the switching plate 17. Multiple air ports are opened on the outer wall of the gas-liquid conversion chamber 21 near the switching plate 17. The air ports and slits are arranged in a circular array along the center point of the slurry preparation pipe 19, and the air ports and slits are staggered. A servo motor 15 is installed on the high-pressure pump. A drive gear 14 is installed at the output end of the servo motor 15. A gear groove 13 is opened on the outer circumference of the external movable cylinder 11. The drive gear 14 meshes with the gear groove 13.

[0036] Operating principle: Taking the operating principle in Example 1 as an example, the inert gas is heated during the hot melting process. After the hot melting action is completed, the solenoid valve 16 on the return gas pipe 12 is opened to blow the high-temperature and high-pressure gas in the gas chamber back into the gas-liquid transfer chamber 23. When the liquid chamber is formed, the solenoid valves 16 on the inlet pipe 9 and the return gas pipe 12 are closed at the same time, while the solenoid valve 16 on the liquid inlet pipe 8 is opened to inject the release agent. In this process, the cut on the switching plate 17 and the air port on the gas-liquid transfer chamber 21 are misaligned, so the release agent or inert gas in the gas-liquid transfer chamber 21 will not enter the gas-liquid transfer chamber 23.

[0037] When injecting the release agent, the servo motor 15 needs to be started synchronously. The external movable cylinder 11 is driven to rotate back and forth at a certain angle through the drive gear 14 and gear groove 13 until the cut on the switching plate 17 coincides with or is misaligned with the air port on the gas-liquid conversion chamber 21. Then, the release agent injected into the liquid chamber can also enter the gas-liquid transfer chamber 23 when it is "absorbing" the preheating. It should be noted again that when the liquid chamber is formed and the solenoid valve 16 on the return air pipe 12 is opened, the inert gas in the air chamber is completely squeezed into the gas-liquid transfer chamber 23 until the release agent flows in the liquid chamber for a period of time, and then the slurry preparation pipe 19 is cooled down.

[0038] When performing the next hot melt action, the cut on the switching plate 17 needs to be aligned with the air port on the gas-liquid conversion chamber 21, and the solenoid valve 16 on the air inlet pipe 9 needs to be opened to inject inert gas into the gas-liquid conversion chamber 21 again to form gas. After the residual mold release agent in the gas-liquid conversion chamber 21 is completely squeezed into the gas-liquid transfer chamber 23, the cut on the switching plate 17 and the air port on the gas-liquid conversion chamber 21 are restored to the misaligned setting state.

[0039] In conjunction with the above, when the inert gas is heated in the gas chamber, and when the molding die assembly 1 completes the molding action - removes the product - and the molding die assembly 1 closes the mold again, the solenoid valve 16 on the return gas pipe 12 is opened, and the heated inert gas is applied to the molding cavity in the molding die assembly 1 along the external transfer pipe 7 - gas-liquid transfer chamber 23 - return liquid pipe 6 to preheat the molding cavity. To further explain, after the heated release agent enters the gas-liquid transfer chamber 23, and when the inert gas is injected into the gas-liquid conversion chamber 21, the pressure of the injected inert gas can also be used to inject the release agent in the gas-liquid transfer chamber 23 into the molding cavity. The release agent "absorbs" the residual heat and has thermal energy, which, while ensuring the mold release properties, also serves the purpose of preheating the molding cavity.

[0040] Example 3

[0041] Based on the technical content of Embodiment 1 and Embodiment 2, this embodiment proposes the following system improvement scheme:

[0042] Reference Figure 2 The pressure sensor 10 is located in the gas chamber of the gas-liquid conversion chamber 21. It is used to monitor pressure changes in the gas chamber in real time. This process requires reference to the Clapeyron equation, which can be expressed as P × V = n × R × T, where P represents the real-time pressure in the gas chamber, V represents the volume of the gas chamber, n represents the number of moles of inert gas, R represents the gas constant of the inert gas, and T represents the temperature of the gas chamber. Taking the selected inert gas as an example, V, n, and R are constant values, so the pressure in the gas chamber is only related to the temperature. Therefore, the pressure can be measured from the external pressure sensor 10. The displayed value is used to provide feedback on the temperature during the hot-melting process of the slurry preparation tube 19. Again, taking the structure of the control panel 2 as an example, the displayed value on the pressure sensor 10 can be fed back to the control panel 2. The displayed value on the pressure sensor 10 is used as the precursor parameter in the operation process of this invention. For example, when the displayed value on the pressure sensor 10 reaches a certain value, it can be fed back that the hot-melting temperature has reached 549~593℃. Therefore, in this process, it is necessary to carry out the operation in batches according to the operating principles of Embodiment 1 and Embodiment 2. Therefore, this embodiment is the precursor operation of Embodiment 1 and Embodiment 2.

[0043] In summary, based on the operating principle of semi-solid magnesium alloy forming, the main focus is on the secondary utilization of the residual heat generated during the hot melting of magnesium alloy raw material particles. The principle is as follows: the generated residual heat is used to perform asynchronous / synchronous heating treatment on gas / liquid. During the heating process: firstly, the liquid medium absorbs the residual heat based on the heat exchanger, which serves to cool the slurry preparation tube for a short time. Then, the cooled temperature is used to heat the gas medium, thereby "temperature storage" for the gas or liquid medium. Finally, the hot gas medium "pumps" the hot liquid medium into the forming cavity of the forming mold, which can preheat the forming cavity. The final effect is to "apply" the residual heat generated during hot melting to the forming cavity, thus making full use of the residual heat.

[0044] The above description is merely an example and illustration of the structure of the present invention. Those skilled in the art can make various modifications or additions to the specific embodiments described, or use similar methods to replace them, as long as they do not deviate from the structure of the invention or exceed the scope defined in the claims, all of which should fall within the protection scope of the present invention.

[0045] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0046] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to specific implementations. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A semi-solid magnesium alloy forming device with heat exchange control function, comprising a forming die assembly (1) and a slurry output assembly (3), characterized in that, The slurry output assembly (3) is provided with an assembly slurry pipe (4) at its output position, and a control panel (2) is provided on the slurry output assembly (3). The slurry output assembly (3) includes an outer sleeve (5), an outer movable cylinder (11), a slurry preparation pipe (19), and a pressure assembly. The outer movable cylinder (11) is rotatably connected to the slurry preparation pipe (19). A particle processing structure is provided between the slurry preparation pipe (19) and the pressure assembly. The outer sleeve (5) is fixedly connected to the slurry preparation pipe (19). The assembly slurry pipe (4) is installed at one end of the slurry preparation pipe (19), and the assembly slurry pipe (4) is rotatably connected to the outer sleeve (5). A gas-liquid conversion chamber (21) is opened in the outer movable cylinder (11). The gas-liquid conversion chamber (21) is connected to the slurry preparation pipe. A partition ring (18) is slidably installed along the length of the pipe (19), and a liquid chamber and a gas chamber are respectively set on the left and right sides of the partition ring (18) in the gas-liquid conversion chamber (21). The liquid chamber is set close to the outer sleeve (5). An external transfer pipe (7) and a return liquid pipe (6) are respectively connected on the outer sleeve (5). An inlet pipe (8), an inlet pipe (9) and a return gas pipe (12) are connected to the position of the external movable cylinder (11) corresponding to the gas-liquid conversion chamber (21). A gas-liquid transfer chamber (23) is opened in the inner position of the external sleeve (5) corresponding to the external transfer pipe (7) and the return liquid pipe (6). A switching plate (17) is installed on the side of the outer sleeve (5) close to the external movable cylinder (11). The switching plate (17) and the external movable cylinder (11) are rotatably connected. Solenoid valves (16) are provided on the liquid inlet pipe (8), air inlet pipe (9), and air return pipe (12). The liquid inlet pipe (8) is located on the left side of the liquid chamber, and the air inlet pipe (9) and air return pipe (12) are located on the right side of the gas chamber. The air inlet pipe (9) and air return pipe (12) are arranged from top to bottom on the external movable cylinder (11). A pressure sensor (10) is provided on the outer wall of the external movable cylinder (11) corresponding to the gas chamber. The probe of the pressure sensor (10) is located in the gas-liquid conversion chamber (21). In the chamber, the external transfer pipe (7) and the return liquid pipe (6) are arranged sequentially from top to bottom on the external sleeve (5). The end of the return gas pipe (12) is connected to the external transfer pipe (7). The end of the return liquid pipe (6) acts on the molding mold group (1). Multiple cuts are opened on the switching plate (17). Multiple air ports are opened on the outer wall of the gas-liquid conversion chamber (21) near the switching plate (17). The air ports and cuts are arranged in a ring array along the center point of the slurry preparation pipe (19), and the air ports and cuts are staggered.

2. The semi-solid magnesium alloy forming equipment with heat exchange control function according to claim 1, characterized in that, The particle processing structure includes a heating ring assembly (20), a spiral pusher (22), and a high-pressure pump. The heating ring assembly (20) is installed inside the slurry preparation pipe (19), and the installation position of the heating ring assembly (20) matches that of the gas-liquid conversion chamber (21).

3. The semi-solid magnesium alloy forming equipment with heat exchange control function according to claim 2, characterized in that, The spiral pusher (22) is located inside the slurry preparation pipe (19), and the high-pressure pump is located on the right side of the slurry preparation pipe (19).

4. The semi-solid magnesium alloy forming equipment with heat exchange control function according to claim 3, characterized in that, A servo motor (15) is installed on the high-pressure pump. A drive gear (14) is installed at the output end of the servo motor (15). A gear groove (13) is opened on the outer circumferential wall of the external movable cylinder (11). The drive gear (14) meshes with the gear groove (13).

Citation Information

Patent Citations

  • Environment-friendly casting mold capable of recovering waste heat

    CN111618244A