Chilling structure for casting
By designing the casting chilling structure, including the outer chilling system and the inner chilling system, the casting shrinkage and other defects are solved, and the castings are sequential solidification and efficient cooling are achieved, thus reducing the scrap rate and production costs.
Patent Information
- Application Number
- CN202421981861.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-15
- Publication Date
- 2025-08-15
- Estimated Expiration
- 2034-08-15
AI Technical Summary
The design of the cooling system in the existing casting process is unreasonable, resulting in defects such as pores, externally cold iron welding and internally cold iron welding, which affects the quality and safety of the castings and has a high waste rate.
Design a casting excitation structure, including an external excitation system and an internal excitation system, combined with a forced cooling system, and flexibly designed through the introduction pipe, transmission pipe and flow control assembly, using external and internal cooling iron to ensure that the castings solidify in sequence and avoid cracks and shrinkage defects.
Effectively prevent casting shrinkage defects, improve casting quality and safety, reduce waste rate, optimize cooling efficiency, reduce cleaning costs, and improve process yield.
Smart Images
Figure CN223222444U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of casting, in particular to a chilling structure for casting. Background Art
[0002] In the shell casting process design, people generally only focus on the design of casting process parameters, the design of the pouring system and the design of the riser feeding system, but not enough attention is paid to the design of the chilling system. There are certain misunderstandings about the chilling system. In the design, they rely solely on experience, without checking the chilling capacity by calculation and computer simulation analysis. In particular, the pouring system design, the riser feeding system design and the exhaust system design are not well coordinated with the chilling system design, resulting in the chilling effect not achieving the expected effect, and even affecting the feeding of the casting riser, having the opposite effect. If the casting chilling system is not designed reasonably, the size and position setting are not reasonable, and it is not well coordinated with the pouring and riser system design, the casting will produce air holes, poor external and internal chiller welding, etc., and the shrinkage defects of the casting are difficult to solve, and even safety accidents such as choking and metal splashing may occur.
[0003] If the standardization of the chilling system design is not in place, the unified standardization of multiple product types is not standardized, the production management of chillers is lax, the quality management process is not strictly controlled, and there are deviations in the operation during molding and core making, the castings will have large seams, increase the grinding workload, affect the dimensional accuracy of the castings, and most of the waste will be defects such as pores and welding.
[0004] These casting scraps caused by design errors and production management errors are often serious, sometimes with a high scrap rate, causing great economic losses, and are also one of the problems that the casting work of the production plant urgently needs to solve;
[0005] Based on this, we propose a chilling structure for casting. Utility Model Content
[0006] The utility model provides a chilling structure for casting, which solves the problem that shrinkage cavities and porosity defects of castings are difficult to solve in the related art.
[0007] The technical solution of the utility model is as follows: a quenching structure for casting, comprising a casting mold main body, an external quenching system and an internal quenching system being provided on the casting mold main body, a forced cooling system being provided at the top end of the casting mold main body, the forced cooling system being used to introduce cooling medium into the internal area of the casting, the forced cooling system comprising an inlet pipe, the top end of the casting mold main body being fixedly connected with an inlet pipe, the top end of the inlet pipe being fixedly connected with a transmission pipe, a flow control component being provided inside the inlet pipe, and the outer side of the transmission pipe being connected with an insulation arc plate through a stabilization component.
[0008] Preferably, the external chilling system includes an external chiller, which is divided into a bottom chiller, a side chiller, a top chiller and an end chiller according to its position inside the casting mold cavity of the casting mold body.
[0009] Preferably, a gap is left between two adjacent outer chillers to prevent cracks in the casting.
[0010] Preferably, the internal chilling system includes an internal chiller, and the internal chiller is located inside the casting.
[0011] Preferably, the surfaces of the outer chiller and the inner chiller are both coated with a refractory alcohol-based coating.
[0012] Preferably, the flow control component includes a support shaft, a sealing plate, a locking disk, a displacement slide, a displacement sheet and a coil spring, the inner part of the inlet tube is rotatably connected to the support shaft, the support shaft is fixedly connected to the sealing plates on both sides inside the inlet tube, the outer side of the inlet tube is fixedly connected to the locking disk, and the support shaft passes through the locking disk, the end of the support shaft located outside the inlet tube is slidably connected to the displacement slide, the end of the displacement slide located inside the support shaft is fixedly connected to the displacement sheet, a coil spring is fixedly connected between the displacement sheet and the support shaft, the end of the displacement slide away from the support shaft is fixedly connected to the locking disk, and the locking disk is clamped in connection with the locking disk.
[0013] Preferably, the stabilization maintenance component includes an assembly seat, a carrying shaft, a positioning arc plate, a transmission screw and a stop block. The top end of the transmission pipe is fixedly connected to multiple assembly seats, the top end of each of the assembly seats is rotatably connected to two carrying shafts, the bottom ends of the two carrying shafts are fixedly connected to a positioning arc plate for positioning the insulation arc plate, the middle part of each of the carrying shafts is threadedly connected to a transmission screw, and one end of the transmission screw is fixedly connected to a stop block.
[0014] Preferably, a locking rod is fixedly connected to one end of the locking disk close to the matching locking disk, a plurality of matching locking holes are opened on one end of the matching locking disk close to the locking disk, and the locking rod is snap-connected to the inside of the matching locking holes.
[0015] The working principle and beneficial effects of the utility model are as follows:
[0016] 1. The utility model can effectively guide the casting to solidify in sequence through the overall structural coordination to prevent casting defects such as shrinkage and shrinkage holes, and can save the additional cleaning cost of removing contact subsidies. By shifting, the shrinkage can be approached or forced into the range of the riser, and the comprehensive benefit is acceptable.
[0017] 2. The form, shape, size and material of the outer and inner chillers in the present invention can be flexibly designed according to the situation. It has a wide and flexible application in solving local heat nodes of small and medium-sized steel castings and is worthy of promotion. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.
[0019] Figure 1 It is a schematic diagram of the structure of the utility model;
[0020] Figure 2 This is a schematic structural diagram of the forced cooling system of the utility model;
[0021] Figure 3 This is a schematic diagram of the separation structure of the thermal insulation arc plate of the utility model;
[0022] Figure 4 This is a schematic structural diagram of the flow control component of the utility model;
[0023] Figure 5 This is a schematic diagram of the structure of the stabilization component of the utility model;
[0024] Figure 6 This is a performance table of parameters of the quenched non-ferrous chill in this utility model;
[0025] Figure 7 This is a schematic diagram of the structure of the chiller in the utility model;
[0026] Figure 8 This is a schematic diagram of the structure of the utility model with the addition of a chiller;
[0027] Figure 9 The MAGMA simulation results show that the structure of the utility model with the addition of a chiller is relevant;
[0028] Figure 10 This is a specific demonstration of the mineral sand core in the casting process of the utility model;
[0029] Figure 11 The MAGMA simulation results of the casting process in which this non-ferrous material design technique is applied in this utility model are shown;
[0030] Figure 12 This is the nondestructive testing result of the casting in this utility model.
[0031] In the figure: 1. Casting mold body; 2. Inlet pipe; 3. Transmission pipe; 4. Flow control component; 5. Stabilization component; 6. Insulation arc plate; 7. Support shaft; 8. Sealing plate; 9. Locking disk; 10. Displacement slide; 11. Displacement plate; 12. Coil spring; 13. Locking disk; 14. Assembly seat; 15. Carrying shaft; 16. Positioning arc plate; 17. Transmission screw; 18. Stop block. DETAILED DESCRIPTION
[0032] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0033] Example 1
[0034] like Figures 1 to 5 As shown, this embodiment proposes a chilling structure for casting, including a casting mold body 1, on which an external chilling system and an internal chilling system are provided. A forced cooling system is provided at the top of the casting mold body 1. The forced cooling system is used to pass a cooling medium into the internal area of the casting. The forced cooling system includes an inlet pipe 2. The top of the casting mold body 1 is fixedly connected to the inlet pipe 2. The top of the inlet pipe 2 is fixedly connected to the transmission pipe 3. A flow control component 4 is provided inside the inlet pipe 2. The outer side of the transmission pipe 3 is connected to an insulation arc plate 6 through a stabilization component 5.
[0035] Furthermore, the external chilling system includes an external chiller, which is divided into a bottom chiller, a side chiller, a top chiller and an end chiller according to its position inside the casting mold cavity of the casting mold body 1;
[0036] In detail, in this embodiment, the external chill is located outside the surface of the casting body and is divided into two types: direct visible chill and hidden chill.
[0037] More specifically, 1. The location of the external chiller and the selection of the chilling capacity should not destroy the sequential solidification conditions and should not block the shrinkage channel;
[0038] 2. The design of the external chiller should not be too large, too long or have sharp corners. There should be gaps between the chillers to avoid cracks in the casting.
[0039] 3. Try to set the external cooling iron at the bottom, side and end of the casting. The external cooling iron on the top affects the exhaust of the cavity and easily forms an air barrier.
[0040] 4. The surface of the outer chiller should be smooth and flat, without defects such as pores and pits, and the chiller should be kept dry to prevent condensation from forming on the surface of the chiller, which may cause pore defects in the casting.
[0041] 5. The material of the external chiller should have higher heat storage capacity and thermal conductivity than the molding material used at the same time. The melting point of the chiller material should not be lower than the melting point of the casting to avoid chiller welding.
[0042] 6. The external chiller should be placed directly in the sand core as much as possible, or placed directly during the molding process to avoid making cleaning difficult and affecting the dimensional accuracy of the casting.
[0043] 7. To avoid rust on the chill, apply refractory alcohol-based paint on the surface of the chill, or polish the surface of the chill to extend the service life of the chill and prevent porosity defects in the casting.
[0044] 8. Confirm that the chill used is customized for the specific casting mold and casting design. The chill must be able to be placed during molding and core making. It can be fixed with magnets or steel nails.
[0045] 9. Large chills can be embedded in the molding sand during molding. The chill can be placed directly on the pattern, or a layer of molding sand can be compacted between the pattern and the chill. Generally, the covering sand layer is controlled at 8 to 12 mm.
[0046] 10. For large chillers, attention should be paid to the lifting and placement of the chiller. A hook point (lifting ring) can be welded on the chiller, and the chiller can be carefully placed on the pattern using a special electromagnetic suction cup for the crane.
[0047] 11. The maximum chiller efficiency is half its thickness or half the wall thickness, whichever is smaller. To save chiller efficiency, chillers should be designed to achieve 95% thermal saturation whenever possible.
[0048] 12. The design of external chiller should be based on the structure of the casting and the module of the shrinkage-feeding hot section and area. The size of the chiller should be calculated, and the computer should be used to simulate the chilling capacity and effect of the chiller, and the shrinkage-feeding gain effect of the riser should be verified in practice.
[0049] 13. After repeated use, the surface of the external chiller is severely oxidized and the chilling ability is reduced. It should be stipulated that the number of times the chiller is used should be limited to prevent the chiller from sticking and causing pore defects. Generally, the chiller can be used 8 to 12 times.
[0050] Specifically, a gap is left between two adjacent outer chillers to prevent cracks in the casting;
[0051] Here, the internal chilling system includes an internal chiller, which is located inside the casting;
[0052] More specifically, the inner chiller is located inside the casting and becomes part of the casting, significantly impacting the casting quality. Most quality standards do not allow for unmelted inner chillers. Therefore, to minimize this impact, the material of the inner chiller should be as close to the casting material as possible. If it is unmelted or does not meet quality standards, it should be removed.
[0053] Preferably, the surfaces of the outer chiller and the inner chiller are coated with a refractory alcohol-based paint. In other embodiments, the surfaces of the outer chiller and the inner chiller may be polished to extend the service life of the outer chiller and the inner chiller and prevent porosity defects in the casting.
[0054] Among them, there are many materials used to make chillers. Every iron material such as graphite and silicon carbide can be used as chillers because of their high melting point and good heat storage capacity. However, the effects of different iron materials as chillers are different. The main difference lies in the thermal conductivity. Among different iron materials, the one with the strongest thermal conductivity has the best cooling effect.
[0055] Therefore, the most commonly used chiller materials should be high-carbon low-silicon gray iron, high-carbon cast steel and graphite. According to the common material usage of steel casting equipment, high-carbon cast steel is used to meet the site conditions and achieve the highest chiller cooling effect;
[0056] In this embodiment, various parameters and performances of non-ferrous chillers are tested, and the parameters and performances of various non-ferrous chillers are as follows: Figure 6 shown.
[0057] A chiller's high heat storage capacity means it can transfer heat quickly and efficiently. The greater the chiller's heat storage capacity, the smaller the chiller volume required. Its thermal conductivity allows the chiller to continuously absorb heat during the cooling process until the corresponding casting is completely solidified.
[0058] Chromium ore can be pre-formed into specially shaped chills or sand cores, making them suitable for medium-to-large, thick-walled parts and for casting cores. Sand chills are not as effective as iron chills and are generally used directly for shaping during core making. They are more suitable for smooth corners or placement between chills. They are simple and reliable to operate, and can improve the quality of localized parts in castings.
[0059] Based on the above research, we have concluded that it is important to adhere to the principles of chiller design, avoid various design and management errors, optimize the chilling system design, and rationalize the layout to maximize the chilling effect. Furthermore, we must pay attention to the organic coordination with the pouring system design, riser feeding system design, and exhaust system design. We should pay attention to the simulation analysis of the chiller's chilling capacity, the quality of the chiller's failure and the number of reuses, as well as the arrangement, accurate positioning, preheating, and exhaust of the chiller.
[0060] Effectively utilize chillers, flexibly apply chillers, clearly understand the role of chillers and risers, rationally design chillers and risers, maximize the role of chillers in feed shrinkage of risers, ensure casting quality, reduce casting costs, improve process yield, and achieve greater economic benefits;
[0061] The flow control assembly 4 includes a support shaft 7, a blocking plate 8, a locking disk 9, a displacement slide 10, a displacement piece 11 and a coil spring 12. The interior of the introduction tube 2 is rotatably connected to the support shaft 7, and the support shaft 7 is fixedly connected to the blocking plates 8 on both sides of the introduction tube 2. The outside of the introduction tube 2 is fixedly connected to the locking disk 9, and the support shaft 7 passes through the locking disk 9. One end of the support shaft 7 located outside the introduction tube 2 is slidably connected to the displacement slide 10, and one end of the displacement slide 10 located inside the support shaft 7 is fixedly connected to the displacement piece 11. A coil spring 12 is fixedly connected between the displacement piece 11 and the support shaft 7. The end of the displacement slide 10 away from the support shaft 7 is fixedly connected to the locking disk 13, and the locking disk 13 is clamped and connected with the locking disk 9;
[0062] In detail, a locking rod is fixedly connected to one end of the locking plate 13 close to the matching locking plate 9, and a plurality of matching locking holes are opened on the other end of the matching locking plate 9 close to the locking plate 13, and the locking rod is clamped and connected to the inside of the matching locking hole. The structural cooperation of the locking rod and the matching locking hole enables the locking plate 13 to be stably connected to the matching locking plate 9, so that the position of the blocking plate 8 can be locked;
[0063] Example 2
[0064] like Figures 1 to 5 As shown, based on the same concept as the above embodiment 1, this embodiment further proposes a stabilization component 5;
[0065] In this embodiment, the stabilization component 5 includes an assembly seat 14, a carrying shaft 15, a positioning arc plate 16, a transmission screw 17 and a stop block 18. The top of the transmission pipe 3 is fixedly connected to a plurality of assembly seats 14, and the top of each assembly seat 14 is rotatably connected to two carrying shafts 15. The bottom ends of the two carrying shafts 15 are fixedly connected to the positioning arc plate 16 for positioning the insulation arc plate 6. The middle part of each carrying shaft 15 is threadedly connected to a transmission screw 17, and one end of the transmission screw 17 is fixedly connected to a stop block 18;
[0066] Furthermore, a non-slip pad is fixedly connected to one side of the anti-rotation block 18 close to the assembly seat 14 , and the outer side of the non-slip pad is provided with non-slip grooves.
[0067] Example 3
[0068] Based on the same concept as the above-mentioned embodiment 1, the chiller material of this embodiment is high carbon alloy steel;
[0069] The chiller features are: it can be placed flat on the casting surface and is not easily misaligned using magnets. The chiller thickness is less than 1 / 2 of the sand shell thickness. The surface in contact with the molten steel is polished. The material is higher than that of the production product and has a strong heat storage capacity.
[0070] Cold Iron Figure 7 As shown;
[0071] The lower part of the casting is a thin-walled area with a thickness of about 10 mm. This structure is prone to produce isolated hot spots below the gate during actual pouring, which may lead to shrinkage cavity quality risks.
[0072] For example Figures 8 and 9 shown.
[0073] From the above, we can see that after adding the chill iron, the defects that should have occurred were eliminated through MAGMA simulation;
[0074] Combined with the above-mentioned figures, the location of the present invention is at a location where hot spots are prone to occur in castings. The results of MAGMA simulation show that this location is an isolated hot spot, which brings quality risks such as shrinkage porosity. The feeding channel of the gating system solidifies before this location. The solidification speed becomes the way to solve this problem. The method of accelerating cooling is often to add cold iron.
[0075] Example 4
[0076] like Figures 1 to 5 、 Figure 10-11 As shown, based on the same concept as the above-mentioned embodiment 1, the chiller material of this embodiment is chromite sand;
[0077] The chiller has the following characteristics: after being mixed with the resin, it can be placed on top of the mold according to the actual situation. It is portable and non-recyclable. It is carried out with the mold shell and falls off after pouring. It is suitable for sand cores and products with complex surface structures. The chilling effect is milder than that of casting chillers. It is easy to operate and use, accelerates the cooling rate of hot spots, transfers or eliminates shrinkage defects in castings, and prevents sand sticking and abnormal metallographic defects in castings.
[0078] above Figure 10 It is a specific demonstration of the mineral sand core in this casting process; Figure 11 The results of MAGMA simulations of the casting process using this design technique for non-ferrous materials show that;
[0079] Specifically, chromite sand cores are placed in areas with large hot spots to ensure sequential solidification during the solidification process. Magma simulation results show that using chromite sand cores prevents severe sand sticking defects in slender casting holes in large-section castings. Chiller-coated chromite sand has unique advantages in addressing leakage defects in castings and shrinkage defects in hot spots in runner cores. In the foundry industry, chilled sand will have a positive impact on the development of molding materials.
[0080] Among them, in the embodiment, the nondestructive testing results of the casting are as follows Figure 12 shown.
[0081] In summary, the casting that used the process design method of the chilling system did not have shrinkage cavities, porosity or other structural defects.
[0082] A specific application of the above embodiment is to connect the pipeline of the cooling medium with the transmission pipe 3, and then introduce the cooling medium into the internal area of the casting through the transmission pipe 3 and the introduction pipe 2, so as to accelerate the solidification and cooling of the casting, improve the organizational structure and mechanical properties of the casting, and speed up the production cycle. In addition, during the cooling medium transmission process, the setting of the heat preservation arc plate 6 can be utilized to reduce the consumption of the cooling medium during the transmission process, and the transmission screw 17 can be rotated, and the connection between the transmission screw 17 and the carrying shaft 15 can be used to drive the anti-rotation block 18 away from the assembly seat 14, thereby reducing the friction between the anti-rotation block 18 and the assembly seat 14, and then the positioning arc plate 16 is pulled outward to separate the positioning arc plate 16 from the heat preservation arc plate 6, thereby unlocking the heat preservation arc plate 6, and then the heat preservation arc plate 6 can be removed and replaced.
[0083] The displacement slide bar 10 can be pulled outwards, and the displacement slide bar 10 can be connected with the displacement plate 11 to change the position of the displacement plate 11 inside the support shaft 7, and drive the locking plate 13 to disengage the matching lock plate 9. Then, the support shaft 7 is rotated to adjust the blocking plate 8 inside the inlet pipe 2, gradually releasing the blockage of the inlet pipe 2, thereby effectively controlling the flow of the cooling medium entering the casting mold body 1. When the blocking plate 8 is adjusted, the force on the displacement slide bar 10 is released, and the locking plate 13 can be pushed to re-engage the matching lock plate 9 through the setting of the coil spring 12, thereby locking the position of the blocking plate 8.
[0084] In summary, existing methods for addressing shrinkage cavities in castings involve enlarging the shrinkage feeding channel between the riser and the hot spot. However, adding a riser at locations far from the runner results in lower yields, significantly increases costs, and makes it difficult to place a riser in some irregular locations. The present invention effectively addresses these issues and is reusable. It effectively guides the casting to solidify sequentially, preventing casting defects such as shrinkage cavities. It also eliminates the cost of cleaning and removing contact-type feeds. By shifting the feed channel, shrinkage can be forced close to or within the riser's effective range. The overall benefits are acceptable.
[0085] The form, shape, size and material of the chill can be flexibly designed according to the situation. It has a wide and flexible application in solving the local hot spots of small and medium-sized steel castings and is worthy of promotion.
[0086] And the utility model has at least the following beneficial effects:
[0087] 1. Cooperate with the pouring system and riser to control the solidification sequence of the casting, strengthen the sequential solidification conditions of the casting, and increase the longitudinal shrinkage length of the riser.
[0088] 2. Accelerate the solidification and cooling rate of castings, improve and optimize the metallographic structure of castings, refine the grains, and improve the mechanical properties of castings.
[0089] 3. Divide the shrinkage feeding area of the riser, control and expand the shrinkage feeding range of the riser, and improve the shrinkage feeding efficiency of the riser.
[0090] 4. Reduce and prevent segregation of thick-walled castings and avoid chemical sand sticking.
[0091] 5. Reduce the shrinkage tendency of castings, reduce the size of risers, and improve the process yield.
[0092] 6. Reduce the hot zone modulus of castings, eliminate local thermal stress, and avoid crack defects in castings.
[0093] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. A chilling structure for casting, comprising a casting mold body (1), characterized in that: The casting mold body (1) is provided with an external quenching system and an internal quenching system. The top of the casting mold body (1) is provided with a forced cooling system. The forced cooling system is used to pass a cooling medium into the internal area of the casting. The forced cooling system includes an inlet pipe (2). The top of the casting mold body (1) is fixedly connected to the inlet pipe (2). The top of the inlet pipe (2) is fixedly connected to a transmission pipe (3). The inside of the inlet pipe (2) is provided with a flow control component (4). The outside of the transmission pipe (3) is connected to a heat preservation arc plate (6) through a stabilization component (5).
2. A chill structure for casting according to claim 1, characterized in that: The external chilling system comprises an external chiller, which is divided into a bottom chiller, a side chiller, a top chiller and an end chiller according to its position inside the casting mold cavity of the casting mold body (1).
3. A chilling structure for casting according to claim 2, characterized in that: A gap is left between two adjacent outer chillers to prevent cracks from occurring in the casting.
4. A chill structure for casting according to claim 3, characterized in that: The internal chilling system includes an internal chiller, and the internal chiller is located inside the casting.
5. A chilling structure for casting according to claim 4, characterized in that: The surfaces of the outer chiller and the inner chiller are both coated with a fire-resistant alcohol-based paint.
6. A chill structure for casting according to claim 1, characterized in that: The flow control component (4) includes a support shaft (7), a blocking plate (8), a locking disk (9), a displacement slide (10), a displacement sheet (11) and a coil spring (12). The interior of the introduction tube (2) is rotatably connected to the support shaft (7), and both sides of the support shaft (7) located inside the introduction tube (2) are fixedly connected to the blocking plates (8). The outside of the introduction tube (2) is fixedly connected to the locking disk (9), and the support shaft (7) passes through the locking disk (9). The end of the support shaft (7) located outside the introduction tube (2) is slidably connected to the displacement slide (10), and the end of the displacement slide (10) located inside the support shaft (7) is fixedly connected to the displacement sheet (11). A coil spring (12) is fixedly connected between the displacement sheet (11) and the support shaft (7). The end of the displacement slide (10) away from the support shaft (7) is fixedly connected to the locking disk (13), and the locking disk (13) is snap-connected to the locking disk (9).
7. A chill structure for casting according to claim 1, characterized in that: The stabilization component (5) includes an assembly seat (14), a carrying shaft (15), a positioning arc plate (16), a transmission screw (17) and a stop block (18). The top end of the transmission pipe (3) is fixedly connected to a plurality of assembly seats (14). The top end of each assembly seat (14) is rotatably connected to two carrying shafts (15). The bottom ends of the two carrying shafts (15) are fixedly connected to a positioning arc plate (16) for positioning the heat-insulating arc plate (6). The middle part of each carrying shaft (15) is threadedly connected to a transmission screw (17), and one end of the transmission screw (17) is fixedly connected to a stop block (18).
8. A chill structure for casting according to claim 6, characterized in that: A locking rod is fixedly connected to one end of the locking disk (13) close to the matching lock disk (9), and a plurality of matching lock holes are formed on one end of the matching lock disk (9) close to the locking disk (13), and the locking rod is clamped and connected inside the matching lock holes.