Automatic forming method for silica gel frame aerogel heat insulation pad

Abstract

The invention provides an automatic forming method for a silica gel frame aerogel heat insulation pad, and relates to the technical field of power battery heat management, and the method comprises the following steps: continuously conveying a pre-cured aerogel sheet coated with a PET release film, and synchronously supplying a flame-retardant liquid silica gel raw material to a co-extrusion die head; the aerogel sheet penetrates through a central channel of the co-extrusion die head, and the flame-retardant liquid silica gel is extruded at a set flow through an annular groove runner of the die head and wraps the edge part of the aerogel sheet to form a U-shaped pre-wrapping structure; carrying out multi-stage hot-pressing compounding, filling the flame-retardant liquid silica gel into edge pores of the aerogel in an initial pressing area and exhausting, and extending the flame-retardant liquid silica gel to the upper and lower surfaces of the aerogel in a main pressing area to form a hot-pressing compound; and the hot-pressing complex is fed into a high-temperature tunnel for in-situ synchronous curing, cross-linking curing of the flame-retardant liquid silica gel is completed in continuous conveying, and after a release film is stripped, the single heat insulation pad is punched by a servo die cutting system, so that the production efficiency and the product quality of the silica gel frame aerogel heat insulation pad can be remarkably improved.

Description

Technical Field

[0001] This invention relates to the field of power battery thermal management technology, and in particular to an automated molding method for a silicone frame aerogel thermal insulation pad. Background Technology

[0002] With the rapid development of the new energy vehicle market, the thermal management of power batteries has received increasing attention. Power batteries generate a large amount of heat during charging and discharging. If this heat is not effectively managed and dissipated, it can lead to overheating, affecting battery performance, lifespan, and even causing safety issues. Therefore, an efficient thermal management system is crucial for ensuring the stable operation of power batteries.

[0003] Aerogel materials, due to their excellent thermal insulation properties, lightweight and high strength, and high temperature resistance, have become one of the ideal materials for power battery thermal management systems. However, the high brittleness and processing difficulty of aerogels pose many challenges to their practical applications. To address these issues, researchers have proposed a method of combining aerogels with silicone frames to create thermal insulation pads. This composite material not only retains the excellent thermal insulation properties of aerogels but also enhances the mechanical strength and stability of the material.

[0004] Existing methods for manufacturing aerogel thermal insulation pads typically rely on manual operations, resulting in low production efficiency and poor product consistency, making it difficult to meet the demands of large-scale industrial production. Therefore, there is a need for an automated molding method for silicone frame aerogel thermal insulation pads to improve production efficiency and product quality, particularly suitable for applications in power battery thermal management systems. Summary of the Invention

[0005] In view of this, in order to overcome the limitations of the above-mentioned traditional technologies, the purpose of this invention is to propose an automated molding method for silicone frame aerogel thermal insulation pads, which can significantly improve the production efficiency and product quality of silicone frame aerogel thermal insulation pads, reduce errors and uncertainties caused by manual operation, and is particularly suitable for large-scale industrial production in power battery thermal management systems.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] To achieve the above objectives, the present invention provides an automated molding method for silicone frame aerogel thermal insulation pads, comprising the following steps:

[0008] The pre-cured aerogel sheet roll covered with PET release film is continuously conveyed, and flame-retardant liquid silicone raw material is simultaneously supplied to the co-extrusion die.

[0009] Aerogel sheets pass through the central channel of the co-extrusion die, and flame-retardant liquid silicone is extruded through the annular groove channel of the die at a set flow rate, wrapping the edge of the aerogel sheet to form a U-shaped pre-coated structure;

[0010] The co-extruded pre-formed U-shaped pre-coated structure is subjected to multi-stage hot-pressing composite. In the initial pressure zone, flame-retardant liquid silicone fills the edge pores of the aerogel and vents the air. In the main pressure zone, the flame-retardant liquid silicone extends to the upper and lower surfaces of the aerogel to form a hot-pressed composite.

[0011] The hot-pressed composite is sent into a high-temperature tunnel for in-situ synchronous curing. The flame-retardant liquid silicone crosslinking and curing is completed during continuous conveying. After the release film is peeled off, it is punched into a single heat insulation pad by a servo die-cutting system.

[0012] As a further aspect of the present invention, the aerogel sheet has a thickness of 0.5–3 mm and a porosity >90%.

[0013] As a further aspect of the present invention, when the flame-retardant liquid silicone is extruded through the annular groove channel of the die head, the coverage width of the aerogel sheet edge is 2-10 mm and the coverage thickness is 0.3-1.0 mm.

[0014] As a further embodiment of the present invention, the cross-section of the annular groove flow channel of the co-extrusion die head is a tapered trapezoidal structure, the ratio of the top width to the bottom width of the annular groove flow channel is 1.2 to 1.5, and the flow channel depth is 0.5 to 2.0 mm.

[0015] As a further aspect of the present invention, the modulus of the portion of the silicone extension layer covering the aerogel surface in the hot-pressed composite is 1 / 50 to 1 / 100 of the aerogel modulus.

[0016] As a further aspect of the present invention, when the co-extruded pre-formed U-shaped pre-coated structure is subjected to multi-stage hot-pressing composite, the hot-pressing composite temperature in the initial pressing zone is 90-110℃ and the pressure is 0.2-0.5MPa; the hot-pressing composite temperature in the main pressing zone is 120-160℃ and the pressure is 0.8-1.5MPa.

[0017] As a further embodiment of the present invention, when the hot-pressed composite is sent into a high-temperature tunnel for in-situ synchronous curing, the in-situ synchronous curing temperature in the high-temperature tunnel is 160-200°C, the time is ≤30 seconds, the conveying speed is 1.2-1.8 m / min, and the interfacial peel strength after in-situ synchronous curing is ≥3.0 N / mm.

[0018] As a further embodiment of the present invention, the initial pressure zone is applied by oscillating pressure with a frequency of 5 to 10 Hz and an amplitude of ±0.05 MPa, driving flame-retardant liquid silica gel (LSR) to penetrate the nanopores of the aerogel, with a pore diameter ≤50 nm.

[0019] As a further aspect of the present invention, the pressure application direction of the main pressure zone is at an angle of 5° to 10° to the aerogel plane, forcing the flame-retardant liquid silica gel (LSR) to extend and cover the aerogel surface in a directional manner.

[0020] As a further aspect of the present invention, the flame-retardant liquid silica gel (LSR) extends to the upper and lower surfaces of the aerogel for a length of 0.8 to 1.5 mm.

[0021] As a further embodiment of the present invention, the servo die-cutting system consists of a laser positioner and a hydraulic die-cutting blade, with a cutting accuracy of ±0.05mm and a die temperature maintained at 60~80℃.

[0022] Compared with existing technologies, the automated molding method for silicone frame aerogel thermal insulation pads proposed in this invention has the following advantages:

[0023] 1. This invention automates the entire manufacturing process by continuously conveying pre-cured aerogel sheet rolls coated with PET release film and simultaneously supplying flame-retardant liquid silicone raw materials, significantly improving production efficiency, reducing manual intervention and operational errors, and forming a U-shaped pre-coated structure by wrapping the edges of the aerogel sheet with flame-retardant liquid silicone through a co-extrusion die, and forming a hot-pressed composite during multi-stage hot-pressing composite process, which significantly enhances the structural stability and mechanical strength of the aerogel sheet.

[0024] 2. This invention uses high-porosity aerogel to ensure the excellent thermal insulation performance of the heat insulation pad. The modulus of the aerogel surface covered by the silicone extension layer of the hot-pressed composite is the aerogel modulus, which further enhances the thermal insulation effect. The use of flame-retardant liquid silicone as the coating material not only enhances the mechanical strength and stability of the heat insulation pad, but also significantly improves the flame-retardant performance of the product, meeting higher safety standards.

[0025] 3. In the forming stage, a servo die-cutting system combining a laser positioner and a hydraulic die-cutting blade is used to achieve high-precision punching and forming of individual heat insulation pads. The constant temperature die-cutting blade ensures smooth and neat cutting, reduces edge defects, and significantly improves the product's heat insulation performance, mechanical strength and flame retardant performance. It has broad application prospects and significant economic benefits.

[0026] These or other aspects of this application will become more apparent from the following description of embodiments. It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only, and are not intended to limit the application. Detailed Implementation

[0027] The present application will be further described below with reference to specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0028] To make the objectives, technical solutions, and advantages of this invention clearer, the embodiments of this invention are further described in detail below with reference to specific examples. It should be understood that the specific embodiments described herein are merely illustrative of this application and are not intended to limit this application.

[0029] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the embodiments of this application. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0030] Example 1

[0031] An embodiment of the present invention provides an automated molding method for silicone frame aerogel thermal insulation pads. The raw materials and equipment prepared for this method are as follows:

[0032] (1) Raw material selection:

[0033] Aerogel sheet: silica-based aerogel, 1.8 mm thick, 96% porosity, with 25 μm thick PET release film on both sides (tensile strength ≥ 200 MPa).

[0034] Flame-retardant liquid silica gel (LSR): Wacker Chemie selected. 612, flame retardant rating UL94 V-0, temperature resistance 250℃, viscosity 5800cP (at 25℃).

[0035] (2) Equipment selection and process parameters:

[0036] Roll-to-roll conveyor system: tension control accuracy ±0.5N, conveying speed 1.6m / min.

[0037] Co-extrusion die head: The annular groove flow channel has a tapered trapezoidal structure with a top width of 1.8mm, a bottom width of 1.4mm (top width / bottom width ratio of 1.29), and a flow channel depth of 1.5mm.

[0038] The hot press unit consists of two sections: Initial pressing zone: Teflon-coated roller, 300mm diameter, temperature 100℃, pressure 0.35MPa, applied using oscillating pressure (frequency 8Hz, amplitude ±0.05MPa); Main pressing zone: Adjustable tilt roller (8° tilt), temperature 145℃, pressure 1.2MPa.

[0039] High-temperature tunnel oven: Three temperature zones are independently controlled, with a length of 6m. The temperature settings are as follows: entrance zone (0-2m): 165℃; central zone (2-4m): 185℃; exit zone (4-6m): 155℃. The conveying speed is 1.5m / min, and the curing time is 24 seconds.

[0040] Servo die-cutting system: laser positioning accuracy ±0.02mm, hydraulic die-cutting blade, die temperature 70±2℃, punching force 12.5 tons.

[0041] The automated molding method for silicone frame aerogel thermal insulation pads of the present invention includes the following steps:

[0042] 1. Synchronous feeding: The aerogel roll covered with PET release film is conveyed at a speed of 1.6m / min, and LSR is supplied to the co-extrusion die head through a gear pump (accuracy ±1%) at a flow rate of 300g / min.

[0043] 2. Co-extrusion preforming: The aerogel sheet passes through the central channel of the co-extrusion die, while LSR is extruded through the annular groove channel of the die, wrapping the edge of the aerogel sheet to form a U-shaped pre-coated structure. The coating width is 6.0mm ± 0.1mm, and the coating thickness is 0.6mm.

[0044] 3. Multi-stage hot-pressing composite: The U-shaped pre-coated structure first enters the initial pressure zone, where it is subjected to 100℃ and 0.35MPa pressure (oscillation frequency 8Hz) to allow LSR to fill the edge pores of the aerogel (pore diameter ≤50nm, filling depth >70μm). It then enters the main pressure zone, where it is subjected to 145℃ and 1.2MPa pressure (tilt angle 8°) to extend the LSR to the upper and lower surfaces of the aerogel by 1.2mm ± 0.1mm, forming a hot-pressed composite.

[0045] 4. In-situ synchronous curing: The hot-pressed composite is placed in a high-temperature tunnel oven and cured sequentially through temperature zones of 165℃, 185℃, and 155℃ under nitrogen protection for 24 seconds. The measured peel strength of the silicone-aerogel interface is 3.5 N / mm.

[0046] 5. Online Inspection and Die-cutting: After peeling off the PET release film, the finished product is inspected using an AI vision system (inspection items include wrapping width, extension layer coverage, and surface defects). Qualified products are die-cut into 200mm×150mm rectangular heat insulation pads using a servo die-cutting system, with a die-cutting accuracy of ±0.04mm. The die temperature is 70℃, and the cut smoothness Ra≤0.8μm.

[0047] Performance testing:

[0048] (1) Structural analysis: SEM showed that the LSR penetrated into the aerogel pores to a depth of 72±8 μm; FTIR spectra at 1080 cm⁻¹ -1 The formation of Si-O-Si covalent bonds was confirmed at the site.

[0049] (2) Reliability testing:

[0050] Thermal cycling (-40℃~85℃, 5000 cycles): No interfacial delamination, thermal conductivity change rate <3%.

[0051] Mechanical vibration (30G, 20Hz, 50 hours): Structural integrity 100%.

[0052] Thermal runaway prevention (800℃ flame impact for 120 seconds): back side temperature rise ≤115℃.

[0053] (3) Production efficiency: Single line capacity of 830 pieces / hour (120 pieces / hour for traditional process), aerogel material utilization rate of 96.7%.

[0054] Example 2

[0055] An embodiment of the present invention provides an automated molding method for a silicone frame aerogel thermal insulation pad. The raw materials and equipment prepared in this method are the same as those in Embodiment 1. The automated molding method for the silicone frame aerogel thermal insulation pad includes the following steps:

[0056] 1. Synchronous feeding: The aerogel roll covered with PET release film is conveyed at a speed of 2.2m / min, and LSR is supplied to the co-extrusion die head through a gear pump (accuracy ±1%) at a flow rate of 100g / min.

[0057] 2. Co-extrusion preforming: The aerogel sheet passes through the central channel of the co-extrusion die, while LSR is extruded through the annular groove channel of the die, wrapping the edge of the aerogel sheet to form a U-shaped pre-coated structure. The coating width is 7.0mm ± 0.1mm, and the coating thickness is 0.5mm.

[0058] 3. Multi-stage hot-pressing composite: The U-shaped pre-coated structure first enters the initial pressure zone, where it is subjected to 90℃ and 0.4MPa pressure (oscillation frequency 7Hz) to allow LSR to fill the edge pores of the aerogel (pore diameter ≤50nm, filling depth >70μm). It then enters the main pressure zone, where it is subjected to 150℃ and 1.5MPa pressure (tilt angle 10°) to extend the LSR to the upper and lower surfaces of the aerogel by 1.4mm ± 0.1mm, forming a hot-pressed composite.

[0059] 4. In-situ synchronous curing: The hot-pressed composite is placed in a high-temperature tunnel oven and cured sequentially at 170℃, 190℃, and 170℃ under nitrogen protection for 30 seconds each time. The measured peel strength of the silicone-aerogel interface is 4.0 N / mm.

[0060] 5. Online Inspection and Die-cutting: After peeling off the PET release film, the finished product is inspected using an AI vision system (inspection items include wrapping width, extension layer coverage, and surface defects). Qualified products are die-cut into 200mm×150mm rectangular heat insulation pads using a servo die-cutting system, with a die-cutting accuracy of ±0.04mm. The die temperature is 80℃, and the cut smoothness Ra≤0.8μm.

[0061] Performance testing:

[0062] (1) Structural analysis: SEM showed that the LSR penetrated into the aerogel pores to a depth of 73±7 μm; FTIR spectra at 1080 cm⁻¹ -1 The formation of Si-O-Si covalent bonds was confirmed at the site.

[0063] (2) Reliability testing:

[0064] Thermal cycling (-40℃~85℃, 5000 cycles): No interfacial delamination, thermal conductivity change rate <3%.

[0065] Mechanical vibration (30G, 20Hz, 50 hours): Structural integrity 100%.

[0066] Thermal runaway prevention (800℃ flame impact for 120 seconds): back side temperature rise ≤115℃.

[0067] (3) Production efficiency: Single line capacity of 830 pieces / hour (120 pieces / hour for traditional process), aerogel material utilization rate of 96.7%.

[0068] Example 3

[0069] An embodiment of the present invention provides an automated molding method for a silicone frame aerogel thermal insulation pad. The raw materials and equipment prepared in this method are the same as those in Embodiment 1. The automated molding method for the silicone frame aerogel thermal insulation pad includes the following steps:

[0070] 1. Synchronous feeding: The aerogel roll covered with PET release film is conveyed at a speed of 2.5m / min, and LSR is supplied to the co-extrusion die head through a gear pump (accuracy ±1%) at a flow rate of 280g / min.

[0071] 2. Co-extrusion preforming: The aerogel sheet passes through the central channel of the co-extrusion die, while LSR is extruded through the annular groove channel of the die, wrapping the edge of the aerogel sheet to form a U-shaped pre-coated structure. The coating width is 7.0mm ± 0.1mm, and the coating thickness is 0.5mm.

[0072] 3. Multi-stage hot-pressing composite: The U-shaped pre-coated structure first enters the initial pressure zone, where it is subjected to 90℃ and 0.4MPa pressure (oscillation frequency 10Hz) to allow LSR to fill the edge pores of the aerogel (pore diameter ≤50nm, filling depth >70μm). It then enters the main pressure zone, where it is subjected to 160℃ and 1.0MPa pressure (tilt angle 5°) to extend the LSR to the upper and lower surfaces of the aerogel by 1.0mm ± 0.1mm, forming a hot-pressed composite.

[0073] 4. In-situ synchronous curing: The hot-pressed composite is placed in a high-temperature tunnel oven and cured sequentially at 160℃, 200℃, and 160℃ under nitrogen protection for 30 seconds each time. The measured peel strength of the silicone-aerogel interface is 4.2 N / mm.

[0074] 5. Online Inspection and Die-cutting: After peeling off the PET release film, the finished product is inspected using an AI vision system (inspection items include wrapping width, extension layer coverage, and surface defects). Qualified products are die-cut into 200mm×150mm rectangular heat insulation pads using a servo die-cutting system, with a die-cutting accuracy of ±0.04mm. The die temperature is 60℃, and the cut smoothness Ra≤0.8μm.

[0075] Performance testing:

[0076] (1) Structural analysis: SEM showed that the LSR penetrated into the aerogel pores to a depth of 70±8μm; FTIR spectra at 1080cm -1 The formation of Si-O-Si covalent bonds was confirmed at the site.

[0077] (2) Reliability testing:

[0078] Thermal cycling (-40℃~85℃, 5000 cycles): No interfacial delamination, thermal conductivity change rate <3%.

[0079] Mechanical vibration (30G, 20Hz, 50 hours): Structural integrity 100%.

[0080] Thermal runaway prevention (800℃ flame impact for 120 seconds): back side temperature rise ≤115℃.

[0081] (3) Production efficiency: Single line capacity of 830 pieces / hour (120 pieces / hour for traditional process), aerogel material utilization rate of 96.7%.

[0082] This invention automates the entire manufacturing process by continuously conveying pre-cured aerogel sheet rolls coated with PET release film and simultaneously supplying flame-retardant liquid silicone raw materials. This significantly improves production efficiency, reduces manual intervention and operational errors, and uses a co-extrusion die to wrap the edges of the aerogel sheet with flame-retardant liquid silicone to form a U-shaped pre-coated structure. A multi-stage hot-pressing process then forms a hot-pressed composite, significantly enhancing the structural stability and mechanical strength of the aerogel sheet. The use of high-porosity aerogel ensures excellent thermal insulation performance of the insulation pad, and the silicone extension layer of the hot-pressed composite provides coverage. The partial modulus of the aerogel surface is the aerogel modulus, further enhancing the heat insulation effect. Using flame-retardant liquid silicone as the coating material not only enhances the mechanical strength and stability of the heat insulation pad but also significantly improves its flame-retardant performance, meeting higher safety standards. During the molding stage, a servo die-cutting system combining a laser positioner and a hydraulic die-cutting blade is employed to achieve high-precision punching and forming of individual heat insulation pads. The constant-temperature die-cutting blade ensures smooth and neat cuts, reducing edge defects and significantly improving the product's heat insulation, mechanical strength, and flame-retardant properties. This has broad application prospects and significant economic benefits.

[0083] The above are exemplary embodiments disclosed in this invention. However, it should be noted that various changes and modifications can be made without departing from the scope of the embodiments of this invention as defined by the claims. The functions, steps, and / or actions of the methods according to the disclosed embodiments described herein do not need to be performed in any particular order. Furthermore, although the elements disclosed in the embodiments of this invention may be described or claimed individually, they may be understood as multiple unless explicitly limited to a singular number.

[0084] It should be understood that, as used herein, the singular form "a" is intended to include the plural form as well, unless the context clearly supports an exception. It should also be understood that, as used herein, "and / or" refers to any and all possible combinations of one or more of the associatedly listed items. The embodiment numbers disclosed above are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0085] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the invention (including the claims) is limited to these examples. Within the framework of the invention, technical features of the above embodiments or different embodiments can be combined, and many other variations of different aspects of the invention exist, which are not provided in the details for the sake of brevity. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the invention should be included within the protection scope of the invention.

Claims

1. An automated molding method for a silicone frame aerogel thermal insulation pad, characterized in that, The method includes the following steps: The pre-cured aerogel sheet roll covered with PET release film is continuously conveyed, and flame-retardant liquid silicone raw material is simultaneously supplied to the co-extrusion die. Aerogel sheets pass through the central channel of the co-extrusion die, and flame-retardant liquid silicone is extruded through the annular groove channel of the die at a set flow rate, wrapping the edge of the aerogel sheet to form a U-shaped pre-coated structure; The co-extruded pre-formed U-shaped pre-coated structure is subjected to multi-stage hot-pressing composite. In the initial pressure zone, flame-retardant liquid silicone fills the edge pores of the aerogel and vents the air. In the main pressure zone, the flame-retardant liquid silicone extends to the upper and lower surfaces of the aerogel to form a hot-pressed composite. The hot-pressed composite is sent into a high-temperature tunnel for in-situ synchronous curing. The flame-retardant liquid silicone crosslinking and curing is completed during continuous conveying. After the release film is peeled off, it is punched into a single heat insulation pad by a servo die-cutting system.

2. The automated molding method for silicone frame aerogel thermal insulation pads as described in claim 1, characterized in that, The aerogel sheet has a thickness of 0.5–3 mm and a porosity >90%.

3. The automated molding method for silicone frame aerogel thermal insulation pads as described in claim 2, characterized in that, When the flame-retardant liquid silicone is extruded through the annular groove channel of the die, the coating width of the aerogel sheet is 2-10 mm and the coating thickness is 0.3-1.0 mm.

4. The automated molding method for silicone frame aerogel thermal insulation pads as described in claim 3, characterized in that, The annular groove flow channel of the co-extrusion die has a tapered trapezoidal cross-section, with a top width to bottom width ratio of 1.2 to 1.5 and a flow channel depth of 0.5 to 2.0 mm.

5. The automated molding method for silicone frame aerogel thermal insulation pads as described in claim 1, characterized in that, In the hot-pressed composite, the modulus of the portion of the silicone extension layer covering the aerogel surface is 1 / 50 to 1 / 100 of the aerogel modulus.

6. The automated molding method for silicone frame aerogel thermal insulation pads as described in claim 5, characterized in that, When the co-extruded pre-formed U-shaped pre-coated structure is subjected to multi-stage hot-pressing composite, the hot-pressing composite temperature in the initial pressing zone is 90-110℃ and the pressure is 0.2-0.5MPa; the hot-pressing composite temperature in the main pressing zone is 120-160℃ and the pressure is 0.8-1.5MPa.

7. The automated molding method for silicone frame aerogel thermal insulation pads as described in claim 6, characterized in that, When the hot-pressed composite is sent into a high-temperature tunnel for in-situ synchronous curing, the in-situ synchronous curing temperature in the high-temperature tunnel is 160~200℃, the time is ≤30 seconds, the conveying speed is 1.2~1.8m / min, and the interface peel strength after in-situ synchronous curing is ≥3.0N / mm.

8. The automated molding method for silicone frame aerogel thermal insulation pads as described in claim 8, characterized in that, The initial pressure zone is applied using an oscillating pressure with a frequency of 5–10 Hz and an amplitude of ±0.05 MPa, which drives the flame-retardant liquid silicone to penetrate the nanopores of the aerogel, with a pore diameter ≤50 nm.

9. The automated molding method for silicone frame aerogel thermal insulation pads as described in claim 8, characterized in that, The main pressure zone applies pressure at an angle of 5° to 10° to the aerogel plane, forcing the flame-retardant liquid silicone to extend and cover the aerogel surface in a directional manner.

10. The automated molding method for silicone frame aerogel thermal insulation pads as described in claim 9, characterized in that, The flame-retardant liquid silicone extends 0.8 to 1.5 mm over the upper and lower surfaces of the aerogel.