A casting device and a method of manufacturing the same

Abstract

The application discloses a casting device and a casting method, and relates to the technical field of casting devices, and aims to realize more uniform cooling effect on a casting part and further improve product quality, especially for a casting part with a larger area and a thinner thickness. The casting device comprises a pouring system, a mold and a cooling system, the cooling system comprises a spraying cooling assembly, the spraying cooling assembly is arranged directly above the mold, and the spraying cooling assembly comprises an inverted conical shell, a water inlet pipe, a spraying head, a water tank and a first water pump; a plurality of water distribution cavities are longitudinally and spacedly arranged in the inverted conical shell; one end of the water inlet pipe is communicated with the highest water distribution cavity, and the other end of the water inlet pipe is communicated with the water tank; the first water pump is arranged on the water inlet pipe; a first control valve is arranged at a position of the water inlet pipe close to the highest water distribution cavity; a plurality of spraying heads are circumferentially arranged along the side wall of each water distribution cavity; adjacent water distribution cavities are communicated through connecting pipes; and a second control valve is arranged on each connecting pipe; the inverted conical shell, the water inlet pipe and the connecting pipes are coaxially arranged with the mold; the casting device can realize more uniform cooling effect on the casting part and further improve product quality, and has outstanding application effect on the casting part with a larger area and a thinner thickness.

Description

Technical Field

[0001] This invention relates to the field of materials technology, and specifically to a casting apparatus and its preparation method. Background Technology

[0002] Liquid metal is poured into a mold cavity that is adapted to the shape and size of the part, and then cooled and solidified to obtain a blank or part, which is called a casting. The structural design of castings must ensure their working performance and mechanical performance requirements, and take into account the requirements of casting process and alloy casting performance on the structure of castings. Whether the structural design of castings is reasonable or not has a great impact on the quality, productivity and cost of castings. After the castings are processed, they need to be cooled.

[0003] For castings with large areas and thin thicknesses, achieving a more uniform cooling effect mainly requires controlling the consistency of the time it takes for the sprayed liquid to reach the upper surface of the casting. However, the cooling systems of existing casting equipment have simple structures, making it difficult to achieve uniform cooling of castings with large areas and thin thicknesses, which in turn affects the quality of the finished product. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a casting apparatus and its preparation method, which can achieve a more uniform cooling effect on castings and further improve the quality of finished products. It has particularly outstanding application effects for castings with large areas and thin thicknesses.

[0005] The specific technical solution of the present invention is as follows:

[0006] This invention provides a casting apparatus, including a gating system, a mold, and a cooling system. The cooling system includes a spray cooling assembly positioned directly above the mold, comprising an inverted conical shell, a water inlet pipe, spray heads, a water tank, and a first water pump. The inverted conical shell contains a plurality of cooling water channels arranged longitudinally at intervals. One end of the water inlet pipe is connected to the highest cooling water channel, and the other end is connected to the water tank. The first water pump is mounted on the water inlet pipe, and a first control valve is located on the water inlet pipe near the highest cooling water channel. Each cooling water channel has a plurality of spray heads arranged circumferentially along its sidewall. Adjacent cooling water channels are connected by connecting pipes, and each connecting pipe is equipped with a second control valve.

[0007] The inverted conical shell, water inlet pipe, and all connecting pipes are coaxially arranged with the mold.

[0008] Preferably, a pressure sensor is provided above the first control valve in the water inlet pipe and above the second control valve in each of the connecting pipes.

[0009] Preferably, the spacing between adjacent cooling water channels is equal.

[0010] Preferably, each of the cooling water channels is provided with a water distribution plate, which is located near the water inlet of the cooling water channel, and the upper surface of the water distribution plate is an arc surface.

[0011] Preferably, the sidewalls of each cooling water channel are shared with the sidewalls of the inverted conical shell, and a plurality of spray heads are uniformly arranged circumferentially on each cooling water channel. Each spray head is provided with a plurality of spray holes, and the spray holes on any spray head are arranged in an arc-shaped array. The spray hole arrays of all spray heads on the same cooling water channel can jointly form a circular annular spray hole array.

[0012] Preferably, the mold includes an upper mold, a lower mold, and a lifting base. The lifting base includes a movable base, a fixed base, and a hydraulic telescopic arm. The upper mold is fixed on the lifting base, and the lower mold is fixed on the fixed base. The lifting base and the fixed base are connected by multiple hydraulic telescopic arms.

[0013] Preferably, the cooling system further includes a circulating cooling component, which includes a coolant recovery tank, a water-cooled jacket, a return water pipe, and a second water pump. Both the upper and lower molds have water-cooled jackets on their side walls, and each water-cooled jacket contains a serpentine water-cooling channel. The serpentine water-cooling channel of the upper mold is connected to the serpentine water-cooling channel of the lower mold. A coolant recovery tank is located outside the mold, and the lower mold is fixedly mounted in the coolant recovery tank. The bottom of the coolant recovery tank is arc-shaped, and an outlet is located at the lowest point of the coolant recovery tank. The outlet is connected to the serpentine water-cooling channel of the lower mold via the return water pipe. The end of the serpentine water-cooling channel of the upper mold is connected to the outside. A second water pump is installed on the return water pipe.

[0014] Preferably, a pouring gate is provided at the upper edge of the upper mold, and the pouring gate passes through the water-cooling interlayer of the upper mold and communicates with the interior of the upper mold.

[0015] Another aspect of the present invention is a casting method using the casting apparatus described above, comprising the following steps:

[0016] S1. Design and manufacture molds according to the shape and size of the product;

[0017] S2. The molten metal is injected into the mold through the gating system, allowing the metal to fill the entire mold.

[0018] S3. Start the first water pump of the cooling system to allow the coolant in the water tank to enter the inlet pipe. After the pressure in the inlet pipe reaches the preset value, open the first control valve to allow the coolant to enter the highest cooling water channel. The spray head of the highest cooling water channel starts spraying coolant. After the pressure in the first connecting pipe reaches the preset value, open the second control valve to allow the coolant to enter the second high cooling water channel. The spray head of the second high cooling water channel starts spraying coolant. Continue in this manner until the spray head of the lowest cooling water channel starts spraying coolant to cool the mold, so that it solidifies and forms the required shape.

[0019] S4. After the casting has completely cooled, separate the mold and take out the casting for surface treatment, inspection and post-treatment to obtain the finished casting.

[0020] Preferably, in step S3, after the spray cooling is completed, the excess coolant sprayed onto the mold falls into the coolant recovery tank, enters the serpentine water cooling channel of the lower mold through the return water pipe, then enters the serpentine water cooling channel of the upper mold through the serpentine water cooling channel of the lower mold, and is discharged from the end of the serpentine water cooling channel of the upper mold, returning to the coolant recovery tank.

[0021] The beneficial effects of this invention are reflected in:

[0022] The casting apparatus provided by this invention, through a layered design of cooling water channels and a coordinated design of pressure sensors and control valves, enables the coolant in each layer of cooling water channels to reach the mold surface almost simultaneously, achieving uniform cooling of the entire casting. Because the coolant is sprayed simultaneously to different locations, it avoids excessively fast or slow local cooling rates, reducing thermal stress and temperature gradients, improving the quality and consistency of the casting, and allowing for better control of the solidification process, improving the uniformity and density of the solidified structure, and reducing defects. After spraying, the coolant enters the serpentine water-cooling channel of the lower mold through a return pipe, and then returns to the coolant recovery tank through the serpentine water-cooling channel of the upper mold. This design enables the recycling of coolant, reducing coolant resource consumption and improving resource utilization efficiency. By combining spraying coolant with secondary cooling, the cooling effect can be further optimized, improving the quality of the finished product. It has outstanding application effects for castings with large areas and thin thicknesses. Attached Figure Description

[0023] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0024] Figure 1This is a schematic diagram of the casting apparatus provided in Embodiment 1 of the present invention;

[0025] Figure 2 for Figure 1 The enlarged schematic diagram at point A is shown below;

[0026] Figure 3 This is a schematic diagram of the layout of the spray holes on the spray head in Embodiment 1 of the present invention;

[0027] Figure 4 This is a cross-sectional view of the upper mold in Embodiment 1 of the present invention;

[0028] In the attached diagram, 11-inverted conical shell, 12-water inlet pipe, 121-first control valve, 13-spray head, 131-spray hole, 14-water tank, 15-first water pump, 16-cooling water channel, 161-water distribution plate, 17-connecting pipe, 171-second control valve, 18-pressure sensor, 21-coolant recovery tank, 22-water outlet, 23-second water pump, 24-return water pipe, 25-water-cooled jacket, 26-serpentine water-cooled channel, 31-upper mold, 32-lower mold, 331-moving seat, 332-fixed seat, 333-hydraulic telescopic arm. Detailed Implementation

[0029] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0030] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate for the embodiments of this application described herein.

[0031] In this application, the terms "upper," "lower," "inner," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily used to better describe this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0032] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0033] Furthermore, the terms "set up," "equipped with," "connected," and "fixed" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0034] In addition, the term "multiple" should mean two or more.

[0035] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0036] Example 1

[0037] This embodiment provides a casting apparatus, including a gating system, a mold, and a cooling system, wherein:

[0038] The gating system is an important component of the casting process, mainly used to inject molten metal into the mold to form the desired casting. It generally includes main components such as the gate, the flow guide, and the pouring cup. In this embodiment, the gating system is not a core improvement, so its specific structure will not be described in detail here. However, it should be noted that the design and layout of the gating system should be optimized and adjusted according to the specific casting process and the shape and size requirements of the casting to ensure that the molten metal can fill the entire mold evenly and smoothly, and to ensure that the quality of the final casting meets the requirements.

[0039] The mold includes an upper mold 31, a lower mold 32, and a lifting seat. The lifting seat includes a movable seat 331, a fixed seat 332, and a hydraulic telescopic arm 333. The upper mold 31 is fixed on the lifting seat, and the lower mold 32 is fixed on the fixed seat 332. The lifting seat and the fixed seat 332 are connected by multiple hydraulic telescopic arms 333. In this embodiment, the mold is not a core improvement, so it can be designed with reference to existing technologies, such as a similar design of the mold in CN114535538A. However, it should be noted that the casting device provided in this embodiment has outstanding application effects for castings with large area and thin thickness, so the mold should preferably be designed to meet the requirements of this type of casting.

[0040] The cooling system is the core improvement in this embodiment. In this embodiment, such as... Figures 1 to 2 As shown, the cooling system includes a spray cooling assembly positioned directly above the mold. The assembly comprises an inverted conical shell 11, a water inlet pipe 12, spray heads 13, a water tank 14, and a first water pump 15. The inverted conical shell 11, the water inlet pipe 12, and all connecting pipes 17 are coaxially aligned with the mold. Specifically:

[0041] Multiple cooling channels 16 are arranged longitudinally and at equal intervals inside the inverted conical shell 11. Each cooling channel 16 is provided with several spray heads 13 arranged circumferentially along the side wall. The spray heads 13 are used to spray coolant onto the mold surface. In this embodiment, three layers of cooling channels 16 are used as an example. Adjacent cooling channels 16 are connected by connecting pipes 17. Each connecting pipe 17 is provided with a second control valve 171.

[0042] One end of the water inlet pipe 12 is connected to the highest cooling water channel 16, and the other end is connected to the water tank 14. A first water pump 15 is installed on the water inlet pipe 12, and a first control valve 121 is installed on the water inlet pipe 12 near the highest cooling water channel 16.

[0043] Pressure sensors 18 are installed above the first control valve 121 in the inlet pipe 12 and above the second control valve 171 in each connecting pipe 17. Both the first control valve 121 and the second control valve 171 are preferably solenoid valves. When the pressure sensor 18 in the inlet pipe 12 detects that the pressure reaches a preset value, the first control valve 121 opens, allowing coolant to enter the highest cooling channel 16. When the pressure sensor 18 in the connecting pipe 17 between the highest cooling channel 16 and the intermediate cooling channel 16 detects that the pressure reaches a preset value, its corresponding second control valve 171 opens, allowing coolant to enter the intermediate cooling channel 16. When the connecting pipe 17 between the intermediate cooling channel 16 and the lowest cooling channel 16... When the pressure sensor 18 inside pipe 17 detects that the pressure has reached the preset value, the corresponding second control valve 171 opens, allowing the coolant to enter the lowest cooling channel 16. This setting creates a difference in the time when each layer of cooling channel 16 begins to spray coolant. The coolant in the higher layer of cooling channel 16 takes longer to reach the mold surface. Therefore, by reasonably setting the spacing between adjacent cooling channels 16, the time difference in the time when the coolant in each layer of cooling channel 16 reaches the mold surface can be offset, so that the coolant in each layer of cooling channel 16 reaches the mold surface at the same time after being sprayed out, achieving a more uniform cooling effect, improving cooling consistency, and thus optimizing the quality of the finished product.

[0044] In this embodiment, in order to further distribute water evenly, such as Figure 2As shown, each cooling water channel 16 is equipped with a water distribution plate 161, which is located near the water inlet of the cooling water channel 16. The upper surface of the water distribution plate 161 is an arc surface.

[0045] In this embodiment, as Figures 2 to 3 As shown, the sidewalls of each cooling channel 16 are shared with the sidewalls of the inverted conical shell 11. Each cooling channel 16 is uniformly provided with multiple spray heads 13 in a circumferential direction. Each spray head 13 is provided with multiple spray holes 131. The spray holes 131 on any spray head 13 are arranged in an arc array. The array of spray holes 131 of all spray heads 13 on the same cooling channel 16 can jointly form a circular array of spray holes 131. With this design, the coolant in each layer of cooling channel 16 can be sprayed onto the mold surface to form a circular spray range, which is particularly suitable for cooling circular thin castings.

[0046] In this embodiment, to further optimize the cooling effect, the cooling system also includes a circulating cooling component, such as... Figure 1 and Figure 4 As shown, the circulating cooling assembly includes a coolant recovery tank 21, a water-cooled jacket 25, a return water pipe 24, and a second water pump 23. Water-cooled jackets 25 are provided on the side walls of both the upper mold 31 and the lower mold 32. Each water-cooled jacket 25 contains a serpentine water-cooling channel 2626. The serpentine water-cooling channel 2626 of the upper mold 31 is connected to the serpentine water-cooling channel 2626 of the lower mold 32. A coolant recovery tank 21 is located outside the molds. The lower mold 32 is fixedly mounted in the coolant recovery tank 21. The bottom of the coolant recovery tank 21 is arc-shaped, and an outlet 22 is located at the lowest point of the coolant recovery tank 21. The outlet 22 is connected to... The serpentine water-cooling channel 2626 of the lower mold 32 is connected to the return water pipe 24, and the end of the serpentine water-cooling channel 26 of the upper mold 31 is connected to the outside. A second water pump 23 is installed on the return water pipe 24. With this configuration, after the spray cooling is completed, the casting can be cooled a second time. The coolant collected at the bottom of the coolant collection pool is sent into the serpentine water-cooling channel 2626 of the lower mold 32 through the return water pipe 24 to cool the casting from bottom to top. The coolant discharged from the serpentine water-cooling channel 2626 of the upper mold 31 can return to the coolant collection pool, reducing the waste of coolant and achieving more complete heat exchange.

[0047] In this embodiment, a pouring gate is provided at the upper edge of the upper mold 31, and the pouring gate passes through the water-cooling interlayer 25 of the upper mold 31 and communicates with the interior of the upper mold 31.

[0048] In this embodiment, the cooling system, consisting of the inverted conical shell 11, cooling water channel 16, and spray head 13, can achieve uniform cooling of the mold surface and improve cooling consistency. By controlling the operation of the water pump, control valve, and pressure sensor 18, the flow rate and pressure of the coolant can be precisely adjusted, thereby optimizing the cooling effect. By designing the water-cooled jacket 25 and the serpentine water-cooled channel 2626, the coolant is circulated between the upper mold 31 and the lower mold 32, reducing coolant waste. The recycling and reuse of coolant can improve resource utilization efficiency and save water resources. Through uniform cooling and optimized cooling effect, the solidification process of the finished product is more uniform, reducing possible defects and deformation, and effectively improving the quality of the casting.

[0049] Example 2

[0050] This embodiment provides a casting method using the casting apparatus provided in Embodiment 1, including the following steps:

[0051] S1. Design and manufacture molds according to the shape and size of the product; in this embodiment, it is preferable to produce finished castings of round, thin parts;

[0052] S2. The molten metal is injected into the mold through the gating system, allowing the metal to fill the entire mold.

[0053] S3. Primary Cooling: Start the first water pump 15 of the cooling system to allow the coolant in the water tank 14 to enter the inlet pipe 12. After the pressure in the inlet pipe 12 reaches the preset value, open the first control valve 121 to allow the coolant to enter the highest cooling channel 16. The spray head 13 of the highest cooling channel 16 begins to spray the coolant. After the pressure in the first connecting pipe 17 reaches the preset value, open the second control valve 171 to allow the coolant to enter the second high cooling channel 16. The spray head 13 of the second high cooling channel 16 begins to spray the coolant, and so on until the spray head 13 of the lowest cooling channel 16 begins to spray the coolant. The coolant sprayed from each cooling channel 16 can reach the mold surface almost simultaneously to cool the mold, achieving uniform cooling, so that the molten metal solidifies and forms the desired shape.

[0054] Secondary cooling: After the spray cooling is completed, the excess coolant sprayed onto the mold falls into the coolant recovery tank 21, enters the serpentine water cooling channel 26 of the lower mold 32 through the return water pipe 24, and then enters the serpentine water cooling channel 26 of the upper mold 31 through the serpentine water cooling channel 26 of the lower mold 32, and is discharged from the end of the serpentine water cooling channel 26 of the upper mold 31, returning to the coolant recovery tank 21;

[0055] S4. After the casting has completely cooled, separate the mold and take out the casting for surface treatment, inspection and post-treatment to obtain the finished casting.

[0056] In this embodiment, through the layered design of the cooling water channel 16 and the coordinated design of the pressure sensor 18 and the control valve, the coolant in each layer of the cooling water channel 16 can reach the mold surface almost simultaneously, achieving uniform cooling of the entire casting. Since the coolant is sprayed to different positions simultaneously, it can avoid local cooling rates being too fast or too slow, reduce thermal stress and temperature gradients, improve the quality and consistency of the casting, better control the solidification process of the casting, improve the uniformity and density of the solidified structure, and reduce the generation of defects. After spraying, the coolant enters the serpentine water-cooling channel 26 of the lower mold 32 through the return water pipe 24, and then returns to the coolant recovery tank 21 through the serpentine water-cooling channel 26 of the upper mold 31. This design can realize the recycling of coolant, reduce the consumption of coolant resources, and improve resource utilization efficiency. By combining spraying coolant and secondary cooling, the cooling effect can be further optimized, and the quality of the finished product can be improved.

[0057] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered within the scope of the claims and specification of the present invention.

Claims

1. A casting apparatus, characterized in that: Including the gating system, mold, and cooling system. The cooling system includes a spray cooling assembly positioned directly above the mold. The assembly comprises an inverted conical shell, a water inlet pipe, spray nozzles, a water tank, and a first water pump. The inverted conical shell contains a plurality of longitudinally spaced cooling channels. One end of the water inlet pipe is connected to the highest cooling channel, and the other end is connected to the water tank. The first water pump is mounted on the water inlet pipe, and a first control valve is located near the highest cooling channel. Each cooling channel has a plurality of spray nozzles arranged circumferentially along its sidewall. Adjacent cooling channels are connected via connecting pipes, and each connecting pipe is equipped with a second control valve. Pressure sensors are installed above the first control valve in the water inlet pipe and above the second control valve in each of the connecting pipes; the spacing between adjacent cooling water channels is equal, and a water distribution plate is installed in each cooling water channel. The water distribution plate is located near the water inlet of the cooling water channel, and the upper surface of the water distribution plate is an arc surface. The inverted conical shell, water inlet pipe, and all connecting pipes are coaxially arranged with the mold. The mold includes an upper mold, a lower mold, and a lifting base; The cooling system further includes a circulating cooling component, which includes a coolant recovery tank, a water-cooled jacket, a return water pipe, and a second water pump. Both the upper and lower molds have water-cooled jackets on their side walls, and each water-cooled jacket contains a serpentine water-cooling channel. The serpentine water-cooling channel of the upper mold is connected to the serpentine water-cooling channel of the lower mold. A coolant recovery tank is located outside the mold, and the lower mold is fixedly mounted in the coolant recovery tank. The bottom of the coolant recovery tank is arc-shaped, and an outlet is located at the lowest point of the coolant recovery tank. The outlet is connected to the serpentine water-cooling channel of the lower mold via the return water pipe. The end of the serpentine water-cooling channel of the upper mold is connected to the outside. A second water pump is installed on the return water pipe.

2. The casting apparatus according to claim 1, characterized in that: The sidewalls of each cooling water channel are shared with the sidewalls of the inverted conical shell. Multiple spray heads are uniformly arranged circumferentially on each cooling water channel. Multiple spray holes are provided on each spray head. The spray holes on any spray head are arranged in an arc-shaped array. The spray hole arrays of all spray heads on the same cooling water channel can jointly form a circular spray hole array.

3. The casting apparatus according to claim 1, characterized in that: The lifting platform includes a movable platform, a fixed platform, and a hydraulic telescopic arm. The upper mold is fixed on the lifting platform, and the lower mold is fixed on the fixed platform. The lifting platform and the fixed platform are connected by multiple hydraulic telescopic arms.

4. The casting apparatus according to claim 1, characterized in that: A pouring gate is provided at the upper edge of the upper mold, and the pouring gate passes through the water-cooling interlayer of the upper mold and communicates with the interior of the upper mold.

5. A casting method, characterized in that: The casting apparatus as described in any one of claims 1-4 includes the following steps: S1. Design and manufacture molds according to the shape and size of the product; S2. The molten metal is injected into the mold through the gating system, allowing the metal to fill the entire mold. S3. Start the first water pump of the cooling system to allow the coolant in the water tank to enter the inlet pipe. After the pressure in the inlet pipe reaches the preset value, open the first control valve to allow the coolant to enter the highest cooling water channel. The spray head of the highest cooling water channel starts spraying coolant. After the pressure in the first connecting pipe reaches the preset value, open the second control valve to allow the coolant to enter the second high cooling water channel. The spray head of the second high cooling water channel starts spraying coolant. Continue in this manner until the spray head of the lowest cooling water channel starts spraying coolant to cool the mold, so that it solidifies and forms the required shape. S4. After the casting has completely cooled, separate the mold and take out the casting for surface treatment, inspection and post-treatment to obtain the finished casting.

6. The casting method according to claim 5, characterized in that: In step S3, after the spray cooling is completed, the excess coolant sprayed onto the mold falls into the coolant recovery tank, enters the serpentine water cooling channel of the lower mold through the return water pipe, then enters the serpentine water cooling channel of the upper mold through the serpentine water cooling channel of the lower mold, and is discharged from the end of the serpentine water cooling channel of the upper mold, returning to the coolant recovery tank.

Images