High-elasticity silica gel precise sealing element and production process thereof

Abstract

The invention discloses a high-elasticity silica gel precise sealing element and a production process thereof, and relates to the field of sealing elements. A high-elasticity silica gel precise sealing element comprises a sealing rubber strip which is integrally formed in an injection molding mode through an injection molding machine. The silicone rubber mainly comprises the following components in parts by weight: 95-105 parts of methyl vinyl silicone rubber, 1.2 parts of dicumyl peroxide, 14-16 parts of nano calcium carbonate, 8 parts of polyether polyol, 3 parts of hydroxyl silicone oil and 0.5 part of an anti-aging agent RD. Through three-section temperature control, vacuum auxiliary forming and graded pressure maintaining parameters of the material barrel of the injection molding machine and precise matching of constant-temperature control and pressure maintaining of the mold temperature controller, the problems that the density of injection molding rubber strips is not uniform and hidden holes exist in the connecting position of reinforcing ribs and a main body are effectively solved, the integrity of an integrally-formed structure is ensured, and the sealing basic performance is improved from the source.

Description

Technical Field

[0001] This invention belongs to the field of sealing technology, specifically, it relates to a high-elasticity silicone precision seal and its manufacturing process. Background Technology

[0002] With the rapid development of the new energy vehicle industry, the performance requirements of sealing strips for battery pack liquid cooling channels are becoming increasingly stringent. They not only need to have high elasticity, aging resistance and precise dimensional accuracy, but also need to maintain excellent airtightness under dynamic pressure conditions to prevent coolant leakage from affecting battery safety, especially for customized irregular-shaped seals. Currently, high-elasticity silicone sealing strips manufactured using injection molding machines have several drawbacks. Firstly, the injection molding process parameters are poorly controlled, relying heavily on experience to set material temperature, pressure, and holding pressure parameters. This can easily lead to uneven strip density and hidden pores at the connection between reinforcing ribs and the main body, which are difficult to detect through conventional testing after molding. Secondly, the airtightness testing process is poorly adaptable. Traditional testing methods often use uniform pressure extrusion, which cannot simulate the stress differences in different areas of the injection-molded strip (such as the core stress area, edge transition area, and reinforcing rib connection area) during actual installation. Furthermore, the fixed testing settings make it difficult to fully cover the complex structural test points of the injection-molded strip, easily leading to missed detection of hidden leakage defects. Therefore, developing a highly elastic silicone precision seal with strong adaptability, accurate and comprehensive testing, and the ability to simulate actual working conditions, as well as its manufacturing process, has become an urgent problem to be solved in the industry. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a sealing element that can overcome or at least partially solve the above problems. To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by the present invention is: a high-elasticity silicone precision seal, comprising: A sealing strip, wherein the sealing strip is integrally formed by injection molding using an injection molding machine; The main components include: 95-105 parts of methyl vinyl silicone rubber, 1.2 parts of dicumyl peroxide, 14-16 parts of nano calcium carbonate, 8 parts of polyether polyol, 3 parts of hydroxyl silicone oil, and 0.5 parts of antioxidant RD. A manufacturing process for high-elasticity silicone precision seals, comprising the following main steps: Step 1, Mixing: Weigh 100 parts of methyl vinyl silicone rubber, 1.2 parts of dicumyl peroxide, 15 parts of nano calcium carbonate, 8 parts of polyether polyol, 3 parts of hydroxyl silicone oil, and 0.5 parts of antioxidant RD; put the raw rubber into a mixer and mix at room temperature at 30 r / min for 5 min, add the remaining components and continue mixing for 10 min, keep at 80℃ and mix for 8 min and degas, let stand at room temperature for 2 h to obtain the compound; Step 2, Molding: The silicone injection molding machine barrel has three-stage temperature control, the mold is preheated to 110℃, the injection pressure is 8MPa, the holding pressure is 5MPa / 8min, vacuum-assisted molding is used, and the sealing strip is obtained by demolding at 60℃. Step 3, vulcanization: First stage vulcanization at 160℃ for 12 min, followed by second stage vulcanization at 200℃ for 4 h after cooling to 120℃, and then cooling to room temperature in the chamber; Step 4, Post-processing: UV laser trimming, drying at 50℃ / 50%RH for 2 hours, initial inspection of dimensions and sealing surface after dust-free cooling; Step 5, Inspection: Assemble the housing and rubber strips on the inspection platform, and use a miniature telescopic cylinder to pressurize and squeeze the filling layer; first inject air, then inject the gas-liquid mixture, and monitor it in conjunction with the camera and pressure sensor; qualified products are put into storage, unqualified products are marked as defective, and the equipment is cleaned after the residual liquid is discharged. Furthermore, a housing is detachably mounted on the testing platform, and a cover plate is mounted on the housing. Both the housing and the cover plate are provided with placement grooves for placing sealing strips. The cover plate has a U-shaped groove that communicates with the placement groove. A flexible sealing filling layer is installed in the groove, and the bottom of the flexible sealing filling layer is larger than the sealing strip to seal the groove. Furthermore, the testing station is provided with an equipment cavity, in which a connecting pipe communicating with the housing is installed. A water tank, a water pump, and an air pump are installed in the equipment cavity. The water pump is connected to the water tank, and the output ends of the water pump and the air pump are both connected to the connecting pipe. Through the water pump and the air pump, gas and liquid are injected into the housing to test the sealing performance of the sealing strip. Furthermore, a pressure sensor is installed inside the cover plate to monitor pressure changes within the housing. Furthermore, an installation plate is mounted on the testing platform, and multiple sets of miniature telescopic cylinders are mounted on the installation plate. The arrangement of the miniature telescopic cylinders is consistent with the shape of the sealing strip. A compression pressure sensor is fixedly connected to the telescopic end of the miniature telescopic cylinder. The compression pressure sensor abuts against the flexible sealing filling layer and is used to compress the flexible sealing filling layer, thereby causing the flexible sealing filling layer to deform and compress the sealing strip in the groove below, thus changing the compression force of the flexible sealing filling layer on the sealing strip. Furthermore, a lifting telescopic rod is fixedly connected to the testing platform, and a lifting platform is fixedly connected to the telescopic end of the lifting telescopic rod. A top-view camera is installed on the lifting platform, and the top-view camera is used to monitor the housing from a top-down perspective. Furthermore, multiple monitoring cameras are installed on the testing platform, and these cameras are used to monitor the housing from the side. Furthermore, a connecting rod is fixedly connected to the lifting platform, and the other end of the connecting rod is fixedly connected to the mounting plate. Furthermore, a sealing plug is detachably installed at the bottom of the connecting pipe to drain any residual liquid inside the connecting pipe. After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art: The present invention effectively solves the problems of uneven density of injection molding strips and hidden pores at the connection between reinforcing ribs and the main body by using three-stage temperature control of injection molding machine barrel, vacuum-assisted molding and graded pressure holding parameters, and constant temperature control of mold temperature controller and precise matching of pressure holding, thereby ensuring the integrity of the one-piece molding structure and improving the sealing performance from the source. It adopts a random adjacent pressure adjustment design, with three pressure levels set at the core of an arbitrary extrusion pressure sensor, and further divided into levels 1, 2, 4, and 5 (levels 1 and 5 have the smallest changes) to both sides. It can adapt to the stress differences in the core stress area, edge transition area, and reinforcing rib connection area of ​​the injection molding strip, breaking the limitations of traditional uniform pressure application, fully covering the complex structural measurement points of the injection molding strip, and significantly reducing the detection rate of hidden leakage. Attached Figure Description To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Figure 1 This invention provides a structural schematic diagram of a high-elasticity silicone precision seal and its manufacturing process. Figure 1 ; Figure 2 This invention proposes a high-elasticity silicone precision seal and its manufacturing process. Figure 1 A schematic diagram of the structure of part A; Figure 3 This invention provides a structural schematic diagram of a high-elasticity silicone precision seal and its manufacturing process. Figure 2 ; Figure 4 This is a cross-sectional structural schematic diagram of a high-elasticity silicone precision seal and its manufacturing process proposed in this invention; Figure 5 This invention proposes a high-elasticity silicone precision seal and its manufacturing process. Figure 4 A structural diagram of section B; Figure 6 This is a schematic diagram of the housing and lifting platform in the manufacturing process of a high-elasticity silicone precision seal proposed in this invention. Figure 7 This invention proposes a high-elasticity silicone precision seal and its manufacturing process. Figure 6 A structural diagram of section C; Figure 8 This is a schematic diagram of the structure of the housing, mounting plate, and pressure sensor in the manufacturing process of a high-elasticity silicone precision seal proposed in this invention. Figure 9 This invention proposes a high-elasticity silicone precision seal and its manufacturing process. Figure 8 A structural diagram of section D; Figure 10 This is a schematic diagram of the structure of the shell, cover plate, and sealing strip in the manufacturing process of a high-elasticity silicone precision seal proposed in this invention. Figure 11 This invention proposes a high-elasticity silicone precision seal and its manufacturing process. Figure 10 A schematic diagram of the structure of part E in the middle. In the diagram: 1. Testing platform; 101. Equipment cavity; 102. Water tank; 103. Water pump; 104. Air pump; 105. Connecting pipe; 106. Sealing plug; 201. Housing; 202. Cover plate; 203. Sealing strip; 204. Flexible sealing filler layer; 205. Pressure sensor; 301. Lifting telescopic rod; 302. Lifting platform; 303. Top-view camera; 305. Connecting rod; 4. Monitoring camera; 501. Mounting plate; 502. Miniature telescopic cylinder; 503. Compression pressure sensor. Detailed Implementation To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention. Example: Refer to Figure 10 A high-elasticity silicone precision seal, comprising: The sealing strip 203 is integrally injection molded using an injection molding machine. The main components include: 95-105 parts of methyl vinyl silicone rubber, 1.2 parts of dicumyl peroxide, 14-16 parts of nano calcium carbonate, 8 parts of polyether polyol, 3 parts of hydroxyl silicone oil, and 0.5 parts of antioxidant RD. like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, a manufacturing process for a high-elasticity silicone precision seal is used to produce such a seal, and mainly includes the following steps: Step 1: Mixing: Using an XNR-401 closed internal mixer, first add 100 parts of methyl vinyl silicone rubber to the machine chamber and mix at 30 rpm for 5 minutes at room temperature to fully soften the raw rubber into a uniform lump. Then, add 15 parts of nano calcium carbonate and 8 parts of polyether polyol sequentially, and continue mixing at 30 rpm for 8 minutes at room temperature to ensure that the reinforcing agent and toughening agent are evenly dispersed in the raw rubber. Finally, add 1.2 parts of dicumyl peroxide, 3 parts of hydroxyl silicone oil, and 0.5 parts of antioxidant RD, and continue mixing at room temperature for 2 minutes to complete the raw material mixing. Then, heat the internal mixer to 80℃ and hold for 8 minutes, while opening the exhaust valve of the machine chamber to remove air bubbles from the rubber compound until the surface of the rubber compound is free of pores and the texture is uniform. After discharge, let it stand for 2 hours to restore the elasticity of the rubber compound, and obtain a qualified compound. Step 2, Molding: Use an LSR-120 silicone-specific horizontal injection molding machine, and set the barrel temperature as follows: 90℃ for the feeding section, 110℃ for the melting section, and 120℃ for the nozzle section to prevent premature vulcanization of the rubber compound; Preheat the mold to 110℃, and evenly apply a very thin layer of silicone oil release agent to the surface of the cavity; Cut the stored rubber compound into blocks and feed them into the injection molding machine hopper. Set the injection pressure and injection speed, and inject the rubber compound into the mold cavity. After injection, switch to the holding pressure stage to eliminate molding air bubbles. After holding pressure, the mold cools naturally to 60°C, and the sealing strip is ejected through the ejection mechanism to achieve one-piece molding. Step 3, Vulcanization: Use an XL-1000 hot air circulating vulcanizing box, preheat and calibrate the temperature in advance, and lay a PTFE pad on the vulcanizing rack to prevent the sealing strip from sticking; place the demolded sealing strip 203 flat on the vulcanizing rack and send it into the vulcanizing box, vulcanize at a constant temperature of 160℃ for 12 minutes to complete the first stage of vulcanization; after the first stage of vulcanization is completed, take out the sealing strip 203 and let it cool naturally; then send the cooled strip back into the vulcanizing box and raise the temperature to 200℃ for a constant temperature vulcanization for 4 hours; Step 4, Post-processing: Use an ultraviolet laser trimming machine to trim the edges. After trimming, dry for 2 hours to remove residual impurities and moisture from the surface. Step 5: Testing: Perform an airtightness test on the dried sealing strip 203. Among them, such as Figure 6 , Figure 7 , Figure 8 As shown, a housing 201 is detachably installed on the testing station 1, and a cover plate 202 is installed on the housing 201 (the two are connected by an electromagnet, which is not shown in the figure). Both the housing 201 and the cover plate 202 are provided with placement grooves for placing sealing strips 203. The cover plate 202 has a U-shaped groove that communicates with the placement groove. A flexible sealing filling layer 204 is installed in the groove. The bottom of the flexible sealing filling layer 204 is larger than the sealing strip 203 to seal the groove. The housing 201 is detachably installed on the test bench 1 using bolts, ensuring that the housing 201 fits tightly against the test bench without any gaps. The cover plate 202 is placed on the housing 201 and fixed by adsorption using an electromagnet. like Figure 4 , Figure 5 As shown, the testing station 1 is provided with a device cavity 101. A connecting pipe 105 communicating with the housing 201 is installed in the device cavity 101. A water tank 102, a water pump 103, and an air pump 104 are installed in the device cavity 101. The water pump 103 is connected to the water tank 102. The output ends of the water pump 103 and the air pump 104 are both connected to the connecting pipe 105. Through the water pump 103 and the air pump 104, gas and liquid are injected into the housing 201, thereby testing the sealing performance of the sealing strip 203. Furthermore, such as Figure 8 As shown, a pressure sensor 205 is installed inside the cover plate 202 to monitor pressure changes inside the housing 201. like Figure 9 , Figure 10 , Figure 11 As shown, a mounting plate 501 is installed on the testing table 1. Multiple sets of miniature telescopic cylinders 502 are installed on the mounting plate 501. The miniature telescopic cylinders 502 are arranged in the same shape as the sealing strip 203. A compression pressure sensor 503 is fixedly connected to the telescopic end of the miniature telescopic cylinder 502. The compression pressure sensor 503 abuts against the flexible sealing filling layer 204 and is used to compress the flexible sealing filling layer 204, thereby causing the flexible sealing filling layer 204 to deform and compress the sealing strip 203 in the groove below, thus changing the compressive force of the flexible sealing filling layer 204 on the sealing strip 203. A lifting telescopic rod 301 is fixedly connected to the testing platform 1. A lifting platform 302 is fixedly connected to the telescopic end of the lifting telescopic rod 301. A top-view camera 303 is installed on the lifting platform 302. The top-view camera 303 is used to monitor the housing 201 via video from a top-view perspective. like Figure 1 , Figure 2 , Figure 3 As shown, multiple monitoring cameras 4 are installed on the testing platform 1. The monitoring cameras 4 are used to monitor the housing 201 from the side, that is, to record video from four directions of the housing 201. A connecting rod 305 is fixedly connected to the lifting platform 302, and the other end of the connecting rod 305 is fixedly connected to the mounting plate 501. A sealing plug 106 is detachably installed at the bottom of the connecting pipe 105 to drain any residual liquid inside the connecting pipe 105. The specific testing process is as follows: First, place the sealing strip 203 smoothly into the placement groove of the housing 201, and adjust the position of the strip so that it fits against the inner wall of the placement groove. Place the cover plate 202 and fix it in place by using an electromagnet to stabilize it, thereby fixing the position of the sealing strip 203. Then, the lifting telescopic rod 301 on the testing platform 1 is activated to control the telescopic end to descend, which drives the lifting platform 302 to descend synchronously. The connecting rod 305 on the lifting platform 302 drives the mounting plate 501 to move down until the multiple sets of miniature telescopic cylinders 502 on the mounting plate 501 are aligned with the flexible sealing filling layer 204 on the cover plate 202. The miniature telescopic cylinders 502 are arranged continuously in the shape of the sealing strips 203 to ensure that the extrusion pressure evenly covers the strip area, and they fit tightly together to form a connection between points. Then, all the miniature telescopic cylinders 502 are activated to control the extension of the telescopic end, so that the compression pressure sensor 503 of the telescopic end is initially attached to the surface of the flexible sealing filling layer 204. Then, the pressure is increased in stages according to the 1-5 levels (the levels are divided based on the adjacent positions of the compression pressure sensor 503, without fixed areas. One compression pressure sensor 503 is randomly selected as level 3, and its adjacent compression pressure sensors 503 are level 2 and level 4, respectively. The one adjacent to level 2 is level 1, and the one adjacent to level 4 is level 5). Finally, the overall pressure is increased to the target pressure of 0.2MPa (simulating the actual extrusion pressure of the sealing strip 203). The specific gear settings and adjustment logic are as follows: 1. Gear division: A randomly selected single squeeze pressure sensor 503 is designated as the core and set as gear 3. The squeeze pressure sensors 503 adjacent to the core sensor on both sides are set as gear 2 and gear 4 respectively. Then, based on the gear 2 and gear 4 sensors, the adjacent squeeze pressure sensors 503 on the side away from gear 3 are set as gear 1 and gear 5 respectively, forming an adjacent gear layout that extends from gear 3 to both sides in stages. 2. Pressure variation range: Level 3 (core position) has the largest pressure variation, with an adjustment range of ±0.02MPa, which can accurately adapt to the force fluctuation requirements of the core measuring point; Levels 1 and 5 (outermost adjacent positions) have the smallest pressure variation, with an adjustment range of only ±0.005MPa, avoiding excessive pressure on the edge measuring points and damage to the rubber strip; Levels 2 and 4 (middle adjacent positions) have an adjustment range of ±0.01MPa, which is at an intermediate level; 3. Precise Calibration: The compression pressure sensor 503 corresponding to each gear position provides real-time feedback of its own pressure value. If the pressure deviation of a certain gear position exceeds the corresponding amplitude threshold, the extension amount of the micro telescopic cylinder 502 of that gear position is finely adjusted by the controller to ensure that the compression force of the flexible sealing filling layer 204 on the sealing strip 203 below is uniform and stable. The filling layer undergoes adaptive deformation due to compression, closely adhering to the surface of the sealing strip (the deformation is slightly larger in the area corresponding to gear 3, and small in the areas corresponding to gears 1 and 5). This achieves comprehensive detection through random adjacent gear position layout and simulates the force difference under actual working conditions, strengthening the sealing boundary and avoiding misjudgment of local leakage. Subsequently, gas or liquid is selected according to the needs. If gas is used, air pump 104 is turned on, and if liquid is used, water pump 103 is used. In this embodiment, gas is used. Dry air is injected into the housing 201 through connecting pipe 105 until the pressure in the housing 201 reaches the required level. Then, air pump 104 is turned off and the pressure is maintained for 5 minutes. During this period, the pressure change is monitored in real time by the pressure sensor 205 inside the cover plate 202. At this time, the miniature telescopic cylinder 502 is in a state of random pressurization or depressurization. If the pressure drop is ≤0.001MPa within 5 minutes, it indicates that the initial seal is good. If the pressure drop exceeds the tolerance, check the sealing of the cover plate 202 or the placement of the rubber strip. After rectification, retest. If the retest still fails, it is a defective product. The camera is used for inspection and recording at this time, recording the seals in real time and marking them so that customers can understand the production and inspection process when the product is sold later. It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims. Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A high-elasticity silicone precision seal, characterized in that, include: A sealing strip (203) is integrally formed by injection molding using an injection molding machine; The main components include: 95-105 parts of methyl vinyl silicone rubber, 1.2 parts of dicumyl peroxide, 14-16 parts of nano calcium carbonate, 8 parts of polyether polyol, 3 parts of hydroxyl silicone oil, and 0.5 parts of antioxidant RD.

2. A manufacturing process for a high-elasticity silicone precision seal, used to produce the high-elasticity silicone precision seal as described in claim 1, characterized in that, The main operating steps include the following: Step 1, Mixing: Weigh 100 parts of methyl vinyl silicone rubber, 1.2 parts of dicumyl peroxide, 15 parts of nano calcium carbonate, 8 parts of polyether polyol, 3 parts of hydroxyl silicone oil, and 0.5 parts of antioxidant RD; The raw rubber is first mixed in an internal mixer at room temperature, and then the remaining components are added and mixed to obtain the compound rubber. Step 2, Molding: The silicone injection molding machine barrel has three-stage temperature control, and the sealing strip (203) is obtained after demolding. Step 3, vulcanization: Perform first-stage vulcanization and second-stage vulcanization, and cool to room temperature after vulcanization is completed; Step 4, Post-processing: Ultraviolet laser trimming; Step 5, Inspection: The sealing strip (203) is inspected for air tightness using the inspection station (1). If the inspection is qualified, it is put into storage; if it is unqualified, it is marked as defective. After the residual liquid is discharged, the equipment is cleaned.

3. The manufacturing process for a high-elasticity silicone precision seal according to claim 2, characterized in that, The testing platform (1) is detachably mounted with a housing (201), and a cover plate (202) is mounted on the housing (201). Both the housing (201) and the cover plate (202) are provided with placement grooves, which are used to place sealing strips (203). The cover plate (202) has a convex groove, which is connected to the placement groove. A flexible sealing filling layer (204) is installed in the groove. The bottom of the flexible sealing filling layer (204) is larger than the sealing strip (203) to seal the groove.

4. The manufacturing process for a high-elasticity silicone precision seal according to claim 3, characterized in that, The testing station (1) is provided with a device cavity (101). A connecting pipe (105) communicating with the housing (201) is installed in the device cavity (101). A water tank (102), a water pump (103), and an air pump (104) are installed in the device cavity (101). The water pump (103) is connected to the water tank (102). The output ends of the water pump (103) and the air pump (104) are both connected to the connecting pipe (105). Through the water pump (103) and the air pump (104), gas and liquid are injected into the housing (201) to test the sealing performance of the sealing strip (203).

5. The manufacturing process for a high-elasticity silicone precision seal according to claim 4, characterized in that, A pressure sensor (205) is installed inside the cover plate (202) to monitor pressure changes inside the housing (201).

6. The manufacturing process for a high-elasticity silicone precision seal according to claim 5, characterized in that, The testing platform (1) is equipped with an installation plate (501), and multiple sets of miniature telescopic cylinders (502) are installed on the installation plate (501). The arrangement of the miniature telescopic cylinders (502) is consistent with the shape of the sealing strip (203). A compression pressure sensor (503) is fixedly connected to the telescopic end of the miniature telescopic cylinder (502). The compression pressure sensor (503) abuts against the flexible sealing filling layer (204) and is used to compress the flexible sealing filling layer (204), thereby causing the flexible sealing filling layer (204) to deform and compress the sealing strip (203) in the groove below, thus changing the compressive force of the flexible sealing filling layer (204) on the sealing strip (203).

7. The manufacturing process for a high-elasticity silicone precision seal according to claim 6, characterized in that, A lifting telescopic rod (301) is fixedly connected to the detection platform (1). A lifting platform (302) is fixedly connected to the telescopic end of the lifting telescopic rod (301). A top-view camera (303) is installed on the lifting platform (302). The top-view camera (303) is used to monitor the shell (201) from a top-view perspective.

8. The manufacturing process for a high-elasticity silicone precision seal according to claim 7, characterized in that, Multiple monitoring cameras (4) are installed on the testing station (1), and the monitoring cameras (4) are used to monitor the housing (201) from the side.

9. The manufacturing process for a high-elasticity silicone precision seal according to claim 7, characterized in that, A connecting rod (305) is fixedly connected to the lifting platform (302), and the other end of the connecting rod (305) is fixedly connected to the mounting plate (501).

10. The manufacturing process for a high-elasticity silicone precision seal according to claim 4, characterized in that, The bottom of the connecting tube (105) is detachably fitted with a sealing plug (106) for draining residual liquid inside the connecting tube (105).

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