Quartz stone sink casting process and casting equipment

Abstract

The application provides a quartz stone sink casting process, which comprises the following steps: firstly, quartz sand is loaded into a mold; then, resin is pushed into a cavity of the mold by using compressed air in a soaking mode, so that the resin can fully soak the quartz sand in the cavity; by using the soaking resin injection process, the content of the resin in the quartz stone sink can be effectively reduced, the hardness of the surface of the quartz stone sink is improved, the service life of the quartz stone sink is prolonged, and the raw material cost of the quartz stone sink is reduced. In the process, the materials are in a closed state, the dust harm is small, the labor intensity of people is low, and the modern environmental protection concept is met.

Description

Technical Field

[0001] This invention relates to the field of quartz water tank casting technology, specifically to a quartz water tank casting process and casting equipment. Background Technology

[0002] In the existing technology, the production process of quartz stone sinks is all by casting or molding. That is, resin and quartz sand (or other mineral particles) are mixed evenly, a corresponding curing agent is added, and finally the mixture is poured into a mold and cured. The product obtained by curing quartz sand and resin is called artificial quartz stone, and the sink made by this process is called quartz stone sink. To improve the durability of quartz stone sinks, it is necessary to maximize the quartz sand content in the raw materials. However, increasing the quartz sand content places the following demands on the resin: To ensure the smooth flow of the quartz sand and resin mixture in the mold, a resin with the lowest possible viscosity is required. However, a low-viscosity resin cannot support the weight of the quartz sand particles, leading to stratification of the resin and quartz sand during the curing process, thus affecting the quality of the sink. If a high-viscosity resin is used, the fluidity of the resin and quartz sand mixture will be greatly reduced. Therefore, it is necessary to increase the resin content and reduce the quartz sand content in the mixture to ensure fluidity. However, if the resin content is too high, the surface hardness of the sink will decrease, making it prone to warping and yellowing. Furthermore, air bubbles in the high-viscosity resin are difficult to expel, causing defects in the quartz stone sink.

[0003] In view of the above situation, how to increase the quartz sand content in artificial quartz stone, reduce the resin content in the mixture, and avoid stratification between quartz sand and resin is an urgent problem to be solved. Summary of the Invention

[0004] The purpose of this invention is to disclose a quartz stone sink casting process and casting equipment, which solves the problems in the existing quartz stone sink casting process where quartz sand and resin easily separate into layers, and where excessive resin content easily leads to a decrease in hardness.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a quartz stone water tank casting process, comprising:

[0006] S1. Quartz sand is loaded into the cavity of the mold; the bottom of the mold has a first feed hole, and the top of the mold has a vent hole;

[0007] S2. The resin is loaded into a pressure tank; the bottom of the pressure tank has a discharge port and the top of the pressure tank has an air inlet.

[0008] S3. Connect the discharge hole to the first feed hole, and introduce compressed air through the air inlet to make the resin in the pressure tank flow into the mold cavity.

[0009] S4. After the mold cavity is filled with resin, stop supplying compressed air into the pressure tank;

[0010] S5. Disconnect the discharge port from the first feed port, and seal the first feed port and the exhaust port;

[0011] S6. Continuously rotate the mold until the first duration;

[0012] S7. Open the mold and remove the formed quartz water tank from the mold cavity.

[0013] Optionally, step S1 further includes:

[0014] S11. Place the mold on the vibrator and turn on the vibrator;

[0015] S12. Use a funnel to pour quartz sand into the cavity of the mold until the cavity is filled with quartz sand.

[0016] Optionally, step S2 further includes:

[0017] S21. A stirring device is installed in the pressure tank;

[0018] S22. Load the resin and curing agent together into the pressure vessel;

[0019] S23. Turn on the stirring device to mix the resin and curing agent evenly in the pressure tank.

[0020] Optionally, step S3 further includes: the pressure of the compressed air is 0.2-0.5 MPa.

[0021] Optionally, step S4 includes: stopping the supply of compressed air to the pressure tank if resin overflows from the vent hole.

[0022] Optionally, the particle diameter of the quartz sand is between 20 mesh and 1500 mesh, and the shape of the quartz sand particles is spherical or ellipsoidal; the surface of the quartz sand is treated with a coupling agent coating lubrication.

[0023] Optionally, step S6 further includes: after flipping the mold for a first duration, keeping the usable surface of the quartz water tank inside the mold facing downwards for a second duration.

[0024] Optionally, step S7 includes: using a demolding device to separate the upper mold and lower mold of the mold and remove the upper mold; introducing compressed air into the first feed hole to separate the molded water tank from the lower mold; and performing post-curing treatment on the demolded water tank.

[0025] Optionally, this application also provides a quartz water tank casting device, including: a mold, a pressure tank, and a turning device; the mold includes an upper mold and a lower mold; the upper mold and the lower mold are detachably connected, and a cavity is formed inside the mold when the upper mold and the lower mold are fixed to each other; the top of the upper mold has an exhaust hole and a second feed hole for putting in quartz sand, and the side of the upper mold has a first feed hole for putting in resin; the pressure tank includes a tank body; a first driving device is fixedly installed on the top of the tank body, and a stirring device is rotatably installed inside the tank body, the stirring device and the first driving device are connected. The driving end of the rotating device is connected to the drive; the top of the barrel is provided with a third feed hole for putting resin into the barrel, a fourth feed hole for putting curing agent into the barrel, and an air inlet; the bottom of the barrel is also provided with a discharge hole for letting resin flow out; the flipping device includes: a frame; a flipping device is rotatably mounted on the frame; a second driving device and a third driving device are fixedly mounted on the frame; the lower mold is detachably connected to the flipping device, the driving end of the second driving device is detachably connected to the upper mold, and the flipping device is connected to the driving end of the third driving device.

[0026] Optionally, a pressure testing port is also provided on the top of the barrel.

[0027] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0028] This invention provides a casting process for quartz stone sinks that effectively reduces the resin content, increases the surface hardness, and extends the service life of the quartz stone sinks, while simultaneously reducing raw material costs. During processing, all materials are kept in a closed environment, minimizing dust hazards, reducing labor intensity, and aligning with modern environmental protection principles. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments 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.

[0030] Figure 1 This is a flowchart of a quartz water tank casting process according to the present invention;

[0031] Figure 2 It is a three-dimensional structural diagram of the mold;

[0032] Figure 3 This is a cross-sectional view of the mold;

[0033] Figure 4 This is a cross-sectional view of the pressure tank;

[0034] Figure 5 This is a schematic diagram of the three-dimensional structure of the flipping device;

[0035] Figure 6 This is a table showing the results of the comparative test.

[0036] Figure 7 It is a curve showing the relationship between resin viscosity and resin content under certain fluidity conditions;

[0037] Figure 8 It is a curve showing the relationship between the surface hardness of the water tank and the numerical content of the water tank;

[0038] In the diagram, 1 is the upper mold; 11 is the vent; 12 is the second feed hole; 2 is the lower mold; 21 is the first feed hole; 3 is the cavity; 41 is the barrel; 42 is the first drive device; 43 is the stirring device; 44 is the third feed hole; 45 is the fourth feed hole; 46 is the air inlet; 47 is the discharge hole; 48 is the air pressure test port; 51 is the frame; 52 is the tilting device; and 53 is the second drive device. Detailed Implementation

[0039] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature.

[0040] In this invention, unless otherwise expressly specified and limited, "above" or "below" a second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of a second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" of a second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature. The terms "vertical," "horizontal," "left," "right," "above," "below," and similar expressions are for illustrative purposes only and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed or operated in a specific orientation, and therefore should not be construed as limiting the invention.

[0041] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0042] Example 1

[0043] like Figure 1 The quartz water tank casting process shown includes:

[0044] S1. Quartz sand is loaded into the cavity of the mold; the bottom of the mold has a first feed hole, and the top of the mold has a vent hole;

[0045] S2. The resin is loaded into the pressure tank; the bottom of the pressure tank has a discharge port and the top of the pressure tank has an air inlet.

[0046] S3. Connect the discharge hole to the first feed hole, and introduce compressed air through the air inlet to make the resin in the pressure tank flow into the mold cavity.

[0047] S4. After the mold cavity is filled with resin, stop supplying compressed air into the pressure tank;

[0048] S5. Disconnect the discharge port from the first feed port, and seal the first feed port and the exhaust port;

[0049] S6. Continuously rotate the mold until the first duration;

[0050] S7. Open the mold and remove the formed quartz water tank from the mold cavity.

[0051] Specifically, the traditional casting process involves first mixing quartz sand and resin evenly, then pouring the mixture into a mold to solidify and shape it. However, this process requires a large amount of resin to ensure good fluidity of the mixture. Excessive resin, however, leads to lower hardness in the finished product, easier aging, and warping and yellowing of the sink surface, affecting its lifespan. Therefore, this application addresses this problem by proposing a quartz sink casting process that effectively improves the separation of quartz sand and resin during the casting process. First, quartz sand is loaded into the mold, filling the mold cavity completely. This ensures the quartz sand is in a relatively stable state within the mold. Then, resin is injected into the mold cavity using a pressure vessel, filling the gaps between the quartz sand particles to form the shape of the sink. This process solves the problem in existing processes where the quartz sand and resin mixture requires high fluidity to fill the mold cavity, thus necessitating a higher resin ratio. In this application, the mold cavity is first filled with quartz sand, and then resin is used to fill the gaps between the quartz sand. This effectively reduces the need for fluidity in the mixture, that is, reduces the resin content in the mixture, giving the water tank higher hardness and wear resistance, and extending the service life of the water tank. After the mold is filled with resin, the top vent and the bottom first feed hole need to be sealed to form a sealed cavity inside the mold. Then, the mold is continuously vibrated to ensure that the quartz sand and resin inside the mold are fully mixed, and that the resin fully wets the surface of the quartz sand, so that the resin and quartz sand form a whole after curing. The first time refers to the time for the resin to form a gel state to form a semi-cured state. The first time needs to be determined according to the type of resin and the type of curing agent. In this application, the resin used is methyl methacrylate (MMA), polymethyl methacrylate (PMMA+MMA), or modified methyl methacrylate. The first time of inversion in step S6 is usually 1 hour to 2 hours. In summary, the casting process for the water tank proposed in this application results in a significantly improved surface wear resistance, reaching a Mohs scale of 6, due to the low resin content and high quartz sand content in the finished product. Furthermore, the quartz sand in the tank exhibits excellent resin wettability, and under pressure, there are no pores inside or on the surface of the tank. The uniform distribution of quartz sand particles within the tank leads to extremely low deformation during molding; deformation of products up to 1000mm in length can be controlled within ±1mm. While traditional water tanks typically contain 30%-40% resin, this process reduces the resin content to 10%-15%. Since the resin content is reduced by half, and resin accounts for over 90% of the material cost, the material cost of the water tank is reduced by 40%, demonstrating significant economic value.

[0052] Furthermore, step S1 also includes:

[0053] S11. Place the mold on the vibrator and turn on the vibrator;

[0054] S12. Use a funnel to pour quartz sand into the cavity of the mold until the cavity is filled with quartz sand.

[0055] Specifically, the mold is placed on a vibrator, and then quartz sand is allowed to fall into the mold cavity through a hopper until the mold cavity is completely filled with quartz sand. This allows the quartz sand to form a dense accumulation in the mold cavity, reducing the gaps between the quartz sand particles and thus reducing the amount of resin required to fill the gaps, thereby ensuring that the resin content is minimized.

[0056] Furthermore, step S2 also includes:

[0057] S21. A stirring device is installed in the pressure tank;

[0058] S22. Load the resin and curing agent together into the pressure vessel;

[0059] S23. Turn on the stirring device to mix the resin and curing agent evenly in the pressure tank.

[0060] Specifically, in order to ensure that the curing agent can be fully mixed with the resin, the curing agent needs to be added to the pressure tank, and after the resin and curing agent are mixed evenly, it is then transported to the mold cavity to fill the gaps of the quartz sand.

[0061] Furthermore, step S3 also includes: the pressure of the compressed air is 0.2-0.5 MPa.

[0062] Specifically, by using compressed air to drive the resin to flow into the gaps of the mold cavity, this technical solution does not require high fluidity of the resin and mixture, and can significantly reduce the resin content in the mixture.

[0063] Furthermore, step S4 includes: stopping the supply of compressed air to the pressure tank if resin overflows from the vent hole.

[0064] Specifically, when the mold is stationary, the vent is located above the mold cavity. Therefore, if resin overflows from the vent, it means that the gaps inside the mold cavity have been filled with resin.

[0065] Furthermore, the particle diameter of the quartz sand is between 20 mesh and 1500 mesh, and the shape of the quartz sand particles is spherical or ellipsoidal; the surface of the quartz sand is treated with a coupling agent coating lubrication.

[0066] Specifically, the particle diameter of the quartz sand is between 20 mesh and 1500 mesh. This allows the smaller diameter quartz sand particles to fill the gaps between the larger diameter particles during the vibration filling process. Maximizing the amount of quartz sand and applying a coupling agent to the surface of the quartz sand before filling it into the mold allows for better bonding between the resin and the quartz sand. Coupling agents are plastic additives used in plastic compounding to improve the interfacial properties between synthetic resins and inorganic fillers or reinforcing materials. They are also known as surface modifiers. During plastic processing, they can reduce the viscosity of the synthetic resin melt, improve the dispersibility of fillers to enhance processing performance, and thus give the finished product good surface quality and mechanical, thermal, and electrical properties. The dosage is generally 0.5% to 2% of the filler dosage. Coupling agents generally consist of two parts: one part is an inorganic-philic group that interacts with inorganic fillers or reinforcing materials; the other part is an organic-philic group that interacts with the synthetic resin.

[0067] Furthermore, step S6 also includes: after flipping the mold for a first duration, making the usable surface of the quartz water tank inside the mold face downwards for a second duration.

[0068] In step S6, stopping the mold flipping process and keeping the usable surface of the quartz water tank in the mold facing downwards until the second time interval means that, while the resin is in a gel state, placing the usable surface of the water tank downwards allows the quartz sand in the mold to be drawn closer to the usable surface of the water tank under the influence of gravity. This results in more quartz sand being deposited on the usable surface of the water tank, thereby increasing the quartz sand content on the surface, improving the hardness and wear resistance of the water tank surface, and extending the service life of the water tank. Specifically, the usable surface of the water tank refers to the concave surface of the water tank, which means that the water tank is in an "inverted" state, allowing the quartz sand inside the resin to settle to the upper surface of the water tank, increasing the quartz sand content on the surface of the water tank and improving the hardness of the water tank.

[0069] Furthermore, step S7 includes:

[0070] Use demolding equipment to separate the upper and lower molds and remove the upper mold;

[0071] Compressed air is introduced into the first feed hole to separate the formed water tank from the lower mold.

[0072] The water tank after demolding is subjected to post-curing treatment, which includes: keeping it at 90°C for 2 hours.

[0073] Specifically, the upper mold separates from the lower mold primarily through the mechanical force of the equipment. To facilitate the removal of the water tank from the lower mold, compressed air can be introduced into the gap between the lower mold and the water tank through the first feed hole. Under the pressure of the compressed air, the lower mold and the water tank separate. This process reduces the difficulty of manual operation and makes it easier to separate the product from the mold. After the adhesive reaches complete curing at room temperature, the intermolecular reaction essentially stops. If the resin is heated and kept at a constant temperature for a period of time, the molecular reaction will continue, and the density will continue to increase. This process is called post-curing. Post-curing can effectively eliminate internal stress, improve bond strength, and improve the overall performance of the adhesive by one-third. Post-curing should be performed when high bonding performance is required or when conditions permit.

[0074] In summary, this invention provides a quartz water tank casting process that utilizes compressed air to push resin into the gaps of quartz sand. This solves the problem of controlling the fluidity of the mixture in traditional casting processes, reduces the resin content during casting, and improves the surface hardness and service life of the quartz water tank. During the curing process, continuous mold rotation ensures thorough mixing of the quartz sand and resin inside the mold, preventing stratification. The entire tooling system is closed, resulting in very low volatile organic compounds during pressure impregnation molding. This improves working conditions, reduces operator exposure to harmful substances, meets environmental protection requirements, and enhances the working environment. The process is also simple to operate.

[0075] Example 2

[0076] Furthermore, such as Figure 2 , 3 As shown in Figures 4 and 5, this application also provides casting equipment for use in conjunction with the above-described quartz water tank casting process, including: a mold, a pressure tank, and a turning device; the mold includes an upper mold 1 and a lower mold 2; the upper mold 1 and the lower mold 2 are detachably connected, and when the upper mold 1 and the lower mold 2 are fixed to each other, a cavity 3 is formed inside the mold; a first feed hole 21 is provided on the side of the upper mold 1; an exhaust hole 11 and a second feed hole 12 for feeding quartz sand are provided on the top of the upper mold 1; (e.g.) Figure 2 , 3As shown in this application, the second feed hole 12 is the original opening used for the water outlet of the casting tank, so no additional opening is needed. It is only necessary to put the quartz sand into the cavity through the second feed hole 12. The pressure tank includes a tank body 41; a first driving device 42 is fixedly installed on the top of the tank body 41, and a stirring device 43 is rotatably installed inside the tank body 41, the stirring device 43 being driven by the driving end of the first driving device 42; the top of the tank body 41 has a third feed hole 44 for adding resin into the tank, a fourth feed hole 45 for adding curing agent into the tank, and an air inlet 46; the bottom of the tank body 41 also has a discharge hole 47 for allowing resin to flow out; the flipping device includes a frame 51; a flipping device 52 is rotatably installed on the frame 51; a second driving device 53 and a third driving device (not shown in the figure) are fixedly installed on the frame 51; the lower mold 2 is detachably connected to the flipping device 52, the driving end of the second driving device 53 is detachably connected to the upper mold 1, and the flipping device 52 is driven by the driving end of the third driving device. Furthermore, the top of the tank body 41 also has a pressure test port 48.

[0077] Example 3

[0078] Furthermore, this application also provides specific implementation methods and comparative examples regarding the raw material ratios:

[0079] Standard example:

[0080] Raw materials: The resin is modified methyl methacrylate (MMA); the quartz sand contains quartz sand particles and granite particles, both with a particle size between 30-200 mesh; the mass percentage of the raw materials is as follows: modified methyl methacrylate (MMA) resin in the product: 30%; quartz sand particles: 65%; granite particles: 4%; additives: 1%.

[0081] Process: First, the surface of the quartz sand particles and granite particles is coated with an additive. Then, the quartz sand particles, granite particles and resin are stirred evenly to form a mixture. Finally, the mixture is filled into the cavity of the mold and cured and shaped without being turned over during the curing and shaping process.

[0082] Comparative Example 1:

[0083] Raw materials: The resin is modified methyl methacrylate (MMA); the quartz sand contains quartz sand particles and granite particles, both with a particle size between 30-200 mesh; the mass percentage of the raw materials is as follows: modified methyl methacrylate (MMA) resin content in the product: 10%; quartz sand particles: 85%; granite particles: 4%; additives: 1%.

[0084] Process: The above raw materials are processed and cast using the casting process provided in Example 1 to form a quartz water tank.

[0085] Comparative Example 2:

[0086] Raw materials: The resin is modified polymethyl methacrylate (modified PMMA); the quartz sand contains quartz sand particles and quartz powder, with the particle size of the quartz sand particles ranging from 30-180 mesh; the particle size of the quartz powder is 325 mesh; the mass percentage of the raw materials is as follows: modified polymethyl methacrylate (modified PMMA) resin content in the product: 15%; quartz sand particles: 79%; quartz powder: 5%; additives: 1%.

[0087] Process: The above raw materials are processed and cast using the casting process provided in Example 1 to form a quartz water tank.

[0088] In this embodiment, the additives mentioned mainly include curing agents, coloring powders, coupling agents, and defoamers. The composition of the additives can also be adjusted according to actual needs.

[0089] Based on the above three raw material ratios and production processes, and in accordance with the JCT908-2013 building materials industry standard, the resulting water tank was tested for: impact toughness (sample size: 100mm×100mm×100mm), surface Barcol hardness, stain resistance, and falling ball impact. The results are as follows: Figure 6 The table is shown below.

[0090] The results in the table show that the process proposed in this application can effectively improve various parameters of the water tank, while also reducing the resin content in the water tank, thereby reducing the cost of raw materials in the water tank production process.

[0091] Example 4

[0092] Furthermore, this application also provides a curve showing the relationship between resin viscosity and resin content requirements during the water tank casting process. Specifically, if a traditional casting process is used, to prevent quartz sand deposition leading to resin and quartz sand stratification, the resin viscosity needs to be increased accordingly to prevent quartz sand deposition. However, to ensure the fluidity of the mixture, the resin content in the mixture needs to be increased accordingly. Therefore, this application provides a curve showing the relationship between resin viscosity and resin content while ensuring a certain level of fluidity in the mixture, such as... Figure 7 As shown.

[0093] Furthermore, as the resin content increases, more resin will be present in the gaps between the quartz sands, and the proportion of resin on the surface of the sink will increase. Therefore, as the resin content increases, the hardness of the sink surface will decrease. Figure 8A curve showing the effect of resin content on hardness is provided. Using the process provided in this application, the resin content in the sink can be reduced to 10%-15%, allowing the sink to achieve a Barcol hardness of 65 or higher. In contrast, sinks cast using traditional methods have a resin content as high as 30%, resulting in a surface hardness of only around 50. Therefore, compared to traditional casting processes, the process in this application can significantly improve the surface hardness of the sink, thereby enhancing its wear resistance and anti-slip properties.

[0094] In summary, this application proposes a quartz stone sink casting process. First, quartz sand is loaded into a mold. Then, resin is injected into the mold cavity using compressed air via an impregnation method, allowing the resin to fully impregnate the quartz sand within the cavity. This impregnation-type resin injection process effectively reduces the resin content in the quartz stone sink, increases the surface hardness, extends the service life of the sink, and simultaneously reduces the raw material cost. During the processing, all materials are in a closed environment, minimizing dust hazards, reducing labor intensity, and aligning with modern environmental protection principles.

[0095] This invention is not limited to the above-described embodiments. If any modifications or variations to this invention do not depart from the spirit and scope of this invention, and if such modifications and variations fall within the scope of the claims and equivalent technologies of this invention, then this invention also intends to include such modifications and variations.

Claims

1. A quartz stone water tank casting process, characterized in that, include: S1. Fill the cavity of the mold with quartz sand; The bottom of the mold has a first feed hole, and the top of the mold has a vent hole; S2. The resin is loaded into a pressure tank; the bottom of the pressure tank has a discharge port and the top of the pressure tank has an air inlet. S3. Connect the discharge hole to the first feed hole, and introduce compressed air through the air inlet to make the resin in the pressure tank flow into the mold cavity. S4. After the mold cavity is filled with resin, stop supplying compressed air into the pressure tank; S5. Disconnect the discharge port from the first feed port, and seal the first feed port and the exhaust port; S6. Continuously rotate the mold until the first duration; S7. Open the mold and remove the formed quartz water tank from the mold cavity; Step S1 further includes: S11. Place the mold on the vibrator and turn on the vibrator; S12. Use a funnel to pour quartz sand into the cavity of the mold until the cavity is filled with quartz sand.

2. The quartz stone water tank casting process according to claim 1, characterized in that, Step S2 further includes: S21. A stirring device is installed in the pressure tank; S22. Load the resin and curing agent together into the pressure vessel; S23. Turn on the stirring device to mix the resin and curing agent evenly in the pressure tank.

3. The quartz stone water tank casting process according to claim 1, characterized in that, Step S3 further includes: the pressure of the compressed air is 0.2-0.5 MPa.

4. The quartz water tank casting process according to claim 1, characterized in that, Step S4 includes: stopping the supply of compressed air to the pressure tank when resin overflows from the vent hole.

5. The quartz stone water tank casting process according to claim 1, characterized in that, The quartz sand has a particle diameter between 20 mesh and 1500 mesh, and the quartz sand particles are spherical or ellipsoidal in shape; the surface of the quartz sand is treated with a coupling agent coating lubrication.

6. The quartz stone water tank casting process according to claim 1, characterized in that, Step S6 further includes: After flipping the mold for a first duration, the usable surface of the quartz water tank inside the mold is placed downwards for a second duration; the demolded water tank is then subjected to post-curing treatment.

7. The quartz stone water tank casting process according to claim 1, characterized in that, Step S7 includes: Use demolding equipment to separate the upper and lower molds and remove the upper mold; Compressed air is introduced into the first feed hole to separate the formed water tank from the lower mold.

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