A sample preparation process for testing the adhesion of a metallized film

Abstract

This invention provides a sample preparation process for testing the adhesion of metallized films, and relates to the field of test sample preparation technology. The process includes the following steps: S1, the first end of the metallized film is limited by a gantry limiting component, and the second end is pressed against the lower surface of a first guide roller assembly. After starting the vacuum pump, the first guide roller assembly is gradually moved towards the gantry limiting component to complete the negative pressure adsorption of the metallized film; S2, the first end of the adhesive material is lifted and limited, and the second end is pressed between the first guide roller assembly and the metallized film. The first guide roller assembly is moved away from the gantry limiting component to press the adhesive material and the metallized film together to form a test sample; S3, the vacuum pump is turned off to eliminate the negative pressure adsorption state of the vacuum sample preparation stage, and then the test sample is removed. This invention is particularly suitable for the flattening and bonding of polypropylene metallized films with a thickness ≤5μm, aiming to solve the problems of bubbles, wrinkles, and uneven contact that are easily generated during direct sample preparation.

Description

Technical Field

[0001] This invention relates to the field of test sample preparation technology, and in particular to a sample preparation process for testing the adhesion of metallized films. Background Technology

[0002] The adhesion of metallized films is a key indicator for evaluating the performance of metallized films used in capacitors. Metallized films typically consist of a non-metallic layer (such as a polypropylene, polyester, or polyethylene substrate) and a metallic layer (such as an aluminum, zinc, or copper plating). The adhesion of the metallic layer to the surface of the non-metallic layer directly affects the reliability and lifespan of the capacitor, especially in applications such as new energy vehicles, wind power, and photovoltaics, where the requirements for film quality are even higher.

[0003] In existing adhesion testing methods (qualitative or quantitative, such as peel strength testing, cross-cut adhesion test, or tensile test), the sample preparation process has a decisive impact on the test results. Traditional sample preparation methods involve directly attaching a flexible metallized film to the object to be peeled off (such as adhesive tape or hot melt adhesive). However, due to the film's flexibility and thinness (≤5μm), it is prone to bubbles, wrinkles, or uneven contact, leading to large deviations in adhesion testing and failing to accurately reflect film quality. Existing equipment lacks an effective flattening and uniform pressing mechanism, necessitating a method and equipment that can achieve bubble-free and wrinkle-free sample preparation.

[0004] Relevant patent documents for reference: CN223021883U, CN118010627A. Summary of the Invention

[0005] To address the aforementioned issues, this invention provides a sample preparation process for testing the adhesion of metallized films. This invention is particularly suitable for flattening and bonding polypropylene metallized films with a thickness ≤5μm, aiming to solve the problems of bubbles, wrinkles, and uneven contact that are easily generated during direct sample preparation.

[0006] To solve the above problems, the technical solution adopted by the present invention is as follows:

[0007] A sample preparation process for a metallized film adhesion test sample, using a sample preparation device, the device including a support base, a vacuum preparation stage at the upper end of the support base, a gantry limiting component and a first guide roller assembly at the upper end of the vacuum preparation stage, the vacuum preparation stage being divided into an adsorption area one located in the middle and an adsorption area two located at the edge, a vacuum chamber and a vacuum pump at the lower end of the vacuum preparation stage, and a plugging component at the lower end of each adsorption area to separate the adsorption area one from the vacuum chamber; the process includes the following steps: S1, limiting the first end of the metallized film by the gantry limiting component, pressing the second end against the lower surface of the first guide roller assembly, and starting the process. S1. After the vacuum pump is activated, the first guide roller assembly is gradually moved towards the gantry limiting assembly to complete the negative pressure adsorption of the metallized film; S2. The first end of the adsorbed material is lifted and limited, and the second end is pressed between the first guide roller assembly and the metallized film. The first guide roller assembly is controlled to move away from the gantry limiting assembly to press the adsorbed material and the metallized film together to form a test sample; S3. The vacuum pump is turned off to control the negative pressure adsorption state of the vacuum sample preparation stage to disappear, and then the test sample is removed; wherein, when the first guide roller assembly moves to the edge of the adsorption area one, the adsorption area one is separated from the vacuum chamber by the plugging component and the adsorption area one is controlled to be in a normal pressure state, and then the adsorbed material and the metallized film are pressed together to form a test sample.

[0008] Preferably, a second guide roller assembly is slidably disposed on the upper end of the vacuum sample preparation stage. The second guide roller assembly is located between the first guide roller assembly and the gantry limiting assembly. The second end of the metallized film passes around the upper end of the second guide roller assembly and is pressed against the lower surface of the first guide roller assembly.

[0009] Preferably, the plugging component includes a plugging disc located at the lower end of the adsorption area, the lower end of the plugging disc is connected to a vertically arranged plugging tube, the bottom of the plugging tube is provided with a plugging connector, and a plugging assembly located above the plugging connector is provided inside the plugging tube. The opening and closing of the plugging connector is controlled by adjusting the plugging assembly to different positions.

[0010] Preferably, the plugging assembly includes a plugging ball located inside the plugging tube, and a drive structure for controlling the lifting and lowering movement of the plugging ball. The drive structure controls the plugging ball to move away from the plugging connector to achieve communication between the plugging connector and the inside of the plugging tube. The drive structure also controls the plugging ball to fit against the plugging connector to achieve sealing between the plugging connector and the inside of the plugging tube.

[0011] Preferably, the driving structure includes a plugging elastic telescopic rod fixedly connected to the bottom of the plugging tube, the telescopic end of the plugging elastic telescopic rod passing through the plugging tube and fixedly connected to a bearing ring, the bottom of the plugging elastic telescopic rod being connected to a control pipe, and a regulating valve being provided inside the control pipe.

[0012] Preferably, a touch control component is provided at the upper end of the vacuum sample preparation stage. Both the touch control component and the regulating valve are hydraulic control valves, and the touch control component is connected to the regulating valve. Squeezing the touch control component controls the regulating valve to be in the conducting state.

[0013] Preferably, the touch component is located on the upper end of the vacuum sample preparation stage, outside the first adsorption area, between the first adsorption area and the gantry limiting component.

[0014] Preferably, the touch component is an elastic hydraulic telescopic rod, and the first guide roller assembly includes a slide rail, a slider that slides on the upper end of the slide rail, and a guide roller that is rotatably connected to one side wall of the slider. The telescopic end of the touch component and the bottom of the slider are both wedge-shaped, and the telescopic end of the touch component is located on the movement path of the slider.

[0015] Preferably, the adhesive material is a hot-pressing material, and the upper end of the vacuum sample preparation stage is also provided with a pressure heating component, which is opposite to the adsorption area.

[0016] Preferably, the pressurized heating component has a built-in electric heating plate, a temperature sensor, and a pressure sensor. The electric heating plate has a temperature range of 50-300°C, an accuracy of ±2°C, and a heating time of 1-10 minutes.

[0017] The vacuum sample preparation stage has a smooth surface and is equipped with densely packed small holes. The holes are circular with a diameter of 0.3-0.8 mm (preferably 0.5 mm) and a spacing of 1-3 mm (preferably 2 mm). They are evenly distributed on the stage surface (density of about 20-50 holes per square centimeter) to ensure uniform adsorption force and prevent local deformation of the film. A vacuum pump is connected below, and the vacuum pressure is adjustable (-0.05 to -0.1 MPa) for adsorbing and flattening materials.

[0018] The plugging component is located on one side of the sample preparation stage and is made of silicone, rubber, or vacuum sample preparation stage material. Its size matches the diameter of the small hole and selectively plugs part of the vacuum hole (only the central area is plugged, while the surrounding area is left to retain vacuum adsorption) to prepare for heating and bonding, and to avoid vacuum interference during heating.

[0019] The beneficial effects of this invention are as follows:

[0020] Compared with existing technologies, the above structure and specific process can effectively and smoothly bond the adhesive material and the metallized film together to form a test sample, realizing the automatic and efficient preparation of metallized film test samples, improving the preparation efficiency. At the same time, the prepared test sample has a smooth surface and no internal defects such as wrinkles or bubbles, meeting the requirements for metallized film adhesion testing and ensuring the accuracy of the final test results. Attached Figure Description

[0021] Figure 1This is a schematic diagram of the internal structure of a test sample preparation device according to the present invention.

[0022] Figure 2 This is a top view schematic diagram of a test sample preparation device according to the present invention.

[0023] Figure 3 For the present invention Figure 1 A magnified structural diagram at point A.

[0024] In the diagram: 100, support base; 110, vacuum pump; 120, vacuum chamber; 130, vacuum sample preparation stage; 200, plugging component; 210, plugging disc; 220, plugging tube; 221, plugging connector; 230, plugging assembly; 231, plugging ball; 232, support ring; 233, plugging elastic telescopic rod; 234, control pipe; 300, gantry limit assembly; 400, first guide roller assembly; 410, guide roller one; 420, slider one; 430, slide rail one; 500, second guide roller assembly; 510, guide roller two; 520, slider two; 530, slide rail two; 600, metallized film; 700, touch component. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0026] See attached document Figure 1 - Appendix Figure 3 A sample preparation process for a metallized film adhesion test sample is disclosed, using a sample preparation device. The device includes a support base 100, a vacuum sample preparation stage 130 at the upper end of the support base 100, a gantry limiting component 300 and a first guide roller component 400 at the upper end of the vacuum sample preparation stage 130. The gantry limiting component 300 limits the metallized film 600 to ensure that the metallized film 600 is in a flat and taut state for negative pressure adsorption and adhesion sample preparation. The first guide roller component 400 can press the metallized film 600 against the upper end of the vacuum sample preparation stage 130 to further ensure that the metallized film 600 is in a flat and adsorbed state.

[0027] Specifically, the vacuum sample preparation stage 130 is divided into an adsorption area 1 located in the middle and an adsorption area 2 located at the edge. Both adsorption areas 1 and adsorption areas 2 can generate negative pressure to adsorb the metallized film 600. The areas adsorbed by the two are different. The area adsorbed by adsorption area 1 is located in the middle and is the test sample to be prepared. Adsorption area 2 surrounds the outside of adsorption area 1 and is the non-test sample area. The purpose of adsorption area 2 is to better limit the adsorption in the middle position, ensure the stable forming of the finished test sample, and meet the sample preparation requirements.

[0028] A vacuum chamber 120 and a vacuum pump 110 are provided at the lower end of the vacuum sample preparation stage 130. A plugging component 200 is provided at the lower end of the adsorption area to separate the adsorption area from the vacuum chamber 120. The vacuum pump 110 can continuously discharge the gas in the vacuum chamber 120. After the metallization film 600 is laid at the upper end, the vacuum chamber 120 is kept under negative pressure to effectively adsorb the metallization film 600. The plugging component 200 can separate the adsorption area from the vacuum chamber 120, control the adsorption area to a normal pressure state, avoid continuous adsorption of the corresponding metallization film 600, avoid the formation of dense depressions in the corresponding metallization film 600 due to adsorption, and avoid affecting the normal adhesion of the subsequent metallization film 600, thus ensuring the stability and effectiveness of the finished sample preparation and meeting the sample preparation requirements.

[0029] Specifically, the steps are as follows: S1, the first end of the metallized film 600 is limited by the gantry limiting assembly 300, and the second end is pressed against the lower surface of the first guide roller assembly 400. After starting the vacuum pump 110, the first guide roller assembly 400 is controlled to gradually move towards the gantry limiting assembly 300 to complete the negative pressure adsorption of the metallized film 600; the metallized film 600 is in a state of attachment Figure 1 As shown in the tilted state, the second end of the metallized film 600 is positioned relative to the upper edge of the vacuum sample preparation stage 130, ensuring that the metallized film 600 remains flat under the limiting state between the vacuum sample preparation stage 130 and the gantry limiting assembly 300. This ensures that the first guide roller assembly 400 can stably and effectively lay the metallized film 600 on the upper surface of the vacuum sample preparation stage 130 and be adsorbed by negative pressure during the movement process.

[0030] The upper end of the aforementioned gantry limiting component 300 can also be equipped with a take-up roller, which can wind the metallized film 600. The rotation state of the take-up roller can be adjusted and determined by the motor to ensure that the metallized film 600 is in a taut state.

[0031] S2. Lift and limit the first end of the adhesive material, and press the second end between the first guide roller assembly 400 and the metallized film 600. Control the first guide roller assembly 400 to move away from the gantry limit assembly 300, and press the adhesive material and the metallized film 600 together to form a test sample. The adhesive material can be a tape that does not require heat pressing or a tape that requires heat pressing. During the bonding process, it is also necessary to control the bottom of the adhesive material near the gantry limit assembly 300 to be in a limited state, and the higher part of the adhesive material away from the gantry limit assembly 300 to be in an inclined and limited unwinding state. As the first guide roller assembly 400 gradually moves away from the gantry limit assembly 300, the adhesive material can be gradually laid onto the surface of the metallized film 600 through the first guide roller assembly 400 to complete the effective bonding of the two. The final bonding state should ensure that the adhesive material and the metallized film 600 are flat, without wrinkles, and without bubbles.

[0032] S3. Turn off the vacuum pump 110 to control the vacuum sample preparation stage 130 to disappear the negative pressure adsorption state, and then remove the test sample; after the metallization film 600 and the adhesive material have adhered, remove the negative pressure restriction on the bottom of the metallization film 600, and then remove the adhered metallization film 600 and the adhesive material to complete the overall sample preparation. Then cut the relevant structure, cut off the metallization film 600 and the adhesive material outside the adsorption area 1, and the remaining metallization film 600 and the adhesive material corresponding to the adsorption area 1 are the completed test sample.

[0033] It should be noted that when the first guide roller assembly 400 moves to the edge of the adsorption area 1, the adsorption area 1 is separated from the vacuum chamber 120 by the plugging component 200 and the adsorption area 1 is controlled to be under normal pressure. Then, the adsorbed material and the metallized film 600 are pressed together to form a test sample.

[0034] Through the above operational design, during the process of bonding the adhesive material to the metallized film 600, the metallized film 600 located in the middle position corresponding to the adsorption area is kept in a normal non-negative pressure adsorption state. This avoids the negative pressure adsorption surface of this part of the metallized film 600 causing concavity, which affects the normal bonding with the adhesive material. This ensures the stability, flatness and effectiveness of the finished sample preparation, and ensures that the quality of the finished test sample meets the test requirements.

[0035] In summary, through the above structure and specific process, the adhesive material and the metallized film can be bonded together smoothly and effectively to form a test sample, realizing the automatic and efficient preparation of metallized film test samples, improving the preparation efficiency. At the same time, the prepared test sample has a smooth surface and no internal defects such as wrinkles or bubbles, which meets the requirements for metallized film adhesion testing and ensures the accuracy of the final test results.

[0036] A second guide roller assembly 500 is also slidably disposed on the upper end of the vacuum sample preparation stage 130. The second guide roller assembly 500 is located between the first guide roller assembly 400 and the gantry limiting assembly 300. The second end of the metallized film 600 passes over the upper end of the second guide roller assembly 500 and is pressed onto the lower surface of the first guide roller assembly 400.

[0037] Through the above structural design, the second guide roller assembly 500 between the first guide roller assembly 400 and the gantry limiting assembly 300 can guide and limit the metallized film 600, so that the side of the metallized film 600 close to the first guide roller assembly 400 is at a large angle to the upper surface of the vacuum sample preparation stage 130. At the same time, the metallized film 600 is in a relatively unfolded and flat state between the first guide roller assembly 400 and the second guide roller assembly 500. During the subsequent extrusion process of the first guide roller assembly 400, the metallized film 600 and the vacuum sample preparation stage 130 are more evenly and smoothly adsorbed, further avoiding the generation of defects such as bubbles and wrinkles.

[0038] Specifically, the plugging component 200 includes a plugging disc 210 located at the lower end of the adsorption area. The lower end of the plugging disc 210 is connected to a vertically arranged plugging tube 220. A plugging connector 221 is provided at the bottom of the plugging tube 220. A plugging assembly 230 is provided inside the plugging tube 220, located above the plugging connector 221. The opening and closing of the plugging connector 221 is controlled by adjusting the plugging assembly 230 to different positions. When the plugging assembly 230 is in a higher position, it is offset from the plugging connector 221, and the plugging tube 220 is in a connected state with the vacuum chamber 120. At this time, the vacuum pump 110 can be started to simultaneously perform negative pressure extraction on adsorption area one and adsorption area two. When the plugging assembly 230 is in a lower position, it is in contact with the plugging connector 221, and the plugging tube 220 is in an isolated state with the vacuum chamber 120. At this time, the vacuum pump 110 cannot perform negative pressure adsorption on the negative pressure area one above the plugging tube 220 and the plugging disc 210, thus achieving individual control.

[0039] An atmospheric pressure pipe can also be connected to the outside of the plugging tube 220. After the plugging assembly 230 is in a lower position, the atmospheric pressure pipe is opened. At this time, the plugging tube 220 is connected to the atmospheric pressure environment outside. At this time, the adsorption area corresponding to the plugging tube 220 and the plugging plate 210 is in a normal state and will not perform negative pressure adsorption on the metallization film 600 above, thus ensuring the relative flatness of the metallization film 600 in the adsorption area.

[0040] Specifically, the plugging assembly 230 includes a plugging ball 231 located inside the plugging tube 220, and a drive structure for controlling the lifting and lowering movement of the plugging ball 231. The drive structure controls the plugging ball 231 to move away from the plugging connector 221 to achieve communication between the plugging connector 221 and the inside of the plugging tube 220. The drive structure controls the plugging ball 231 to fit against the plugging connector 221 to achieve sealing between the plugging connector 221 and the inside of the plugging tube 220.

[0041] The aforementioned plugging ball 231 can be made of metal inner liner and wrapped with elastic material on the outside. After the plugging ball 231 descends, it fits into the plugging connector 221. The elastic material fits tightly into the surface of the plugging connector 221, achieving airtight isolation.

[0042] The drive structure includes a plugging elastic telescopic rod 233 fixedly connected to the bottom of the plugging tube 220. The telescopic end of the plugging elastic telescopic rod 233 passes through the plugging tube 220 and is fixedly connected to a bearing ring 232. The bottom of the plugging elastic telescopic rod 233 is connected to a control pipe 234, and a regulating valve is installed in the control pipe 234.

[0043] By opening the regulating valve, the bottom of the plugging elastic telescopic rod 233 is connected to the vacuum chamber 120. Under the action of negative pressure, the piston inside the plugging elastic telescopic rod can be pulled to move towards the bottom. During this process, the plugging elastic telescopic rod 233 is controlled to contract and the plugging ball 231 is controlled to descend.

[0044] When the regulating valve is opened under normal pressure, the inner part of the plugging elastic telescopic rod 233 is in contact with the normal environment. Under the action of the spring inside the plugging elastic telescopic rod 233, the plugging telescopic rod can be pushed to extend, controlling the bearing ring 232 and the plugging ball 231 to move upward, controlling the plugging ball 231 to be misaligned with the plugging connector 221, and realizing conduction control.

[0045] With the above structural design, the opening and closing of the regulating valve can be automatically driven by the negative pressure or normal pressure state in the vacuum chamber 120. No additional electronic control components are required. It is simple and efficient. During the negative pressure process, the plugging elastic telescopic rod 233 is continuously in a contracted state, and the plugging ball 231 is also in a negative pressure adsorption state. The overall structure is stable and reliable.

[0046] A touch control component 700 is provided on the upper end of the vacuum sample preparation stage 130. Both the touch control component 700 and the regulating valve are hydraulic control valves and the touch control component 700 is connected to the regulating valve. Squeezing the touch control component 700 controls the regulating valve to be in the conducting state.

[0047] Through the above structural design, the state of the regulating valve can be controlled by the touch component 700. The touch component 700 is located on the upper end of the vacuum sample preparation stage 130, outside the first adsorption area, between the first adsorption area and the gantry limiting component 300. The first guide roller assembly 400 squeezes the touch component 700 during its movement, thereby adjusting the state of the regulating valve by squeezing the touch component 700, realizing automatic adjustment control. The adjustment is automatically achieved during the process of the first guide roller assembly 400 spreading the adsorbed material, which is simple and efficient.

[0048] Specifically, the touch component 700 is a flexible hydraulic telescopic rod, and the first guide roller assembly 400 includes a slide rail 430, a slider 420 that slides on the upper end of the slide rail 430, and a guide roller 410 that is rotatably connected to the side wall of the slider 420. The telescopic end of the touch component 700 and the bottom of the slider 420 are both wedge-shaped, and the telescopic end of the touch component 700 is located on the moving path of the slider 420.

[0049] Through the above structural design, during the sliding process of slider 420, the touch component 700 can be squeezed to control the touch component 700 to retract. During the retraction of the touch component 700, the control oil inside the touch component 700 is squeezed into the regulating valve to control the regulating valve to deflect at a predetermined angle and be in the open state.

[0050] As slider 420 moves away from touch component 700, touch component 700 resets under its own elasticity, controlling the oil to flow back into touch component 700 and controlling the regulating valve to deflect in the opposite direction by a predetermined angle to achieve closure.

[0051] The above structural design enables automatic control of the opening and closing of the regulating valve without the need for separate intervention, making it simple and efficient. The regulating valve can be an existing hydraulic rotary ball valve, which controls the valve core to deflect to different angle positions to achieve opening and closing control.

[0052] The preferred adhesive material is a hot-pressing material. The upper end of the vacuum sample preparation stage 130 is also equipped with a pressure heating component. The pressure heating component is opposite to the adsorption area. After the heating and pressure component is attached to the adsorption area, the hot-pressing material is controlled to adhere to the metallized film 600 to form a test sample.

[0053] Specifically, the pressurized heating component has a built-in electric heating plate, temperature sensor and pressure sensor. The electric heating plate has a temperature range of 50-300°C with an accuracy of ±2°C and a heating time of 1-10 minutes. After heating, the hot-pressed material is tightly bonded to the metallized film 600 to form a composite layer test sample.

[0054] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A sample preparation process for a metallized film adhesion test sample, using a sample preparation device, the sample preparation device including a support base (100), and a vacuum sample preparation stage (130) disposed on the upper end of the support base (100), characterized in that: The upper end of the vacuum sample preparation stage (130) is also provided with a gantry limiting component (300) and a first guide roller component (400). The vacuum sample preparation stage (130) is divided into an adsorption area one located in the middle and an adsorption area two located at the edge. The lower end of the vacuum sample preparation stage (130) is provided with a vacuum chamber (120) and a vacuum pump (110). A plugging component (200) is provided at the lower end of the adsorption area to separate the adsorption area one from the vacuum chamber (120). Includes the following steps: S1. The first end of the metallized film (600) is limited by the gantry limiting assembly (300), and the second end is pressed on the lower surface of the first guide roller assembly (400). After starting the vacuum pump (110), the first guide roller assembly (400) is controlled to gradually move towards the gantry limiting assembly (300) to complete the negative pressure adsorption of the metallized film (600). S2. The first end of the adhesive material is raised and limited, and the second end is pressed between the first guide roller assembly (400) and the metallized film (600). The first guide roller assembly (400) is controlled to move away from the gantry limiting assembly (300) to press the adhesive material and the metallized film (600) together to form a test sample. S3. Turn off the vacuum pump (110) to control the vacuum sample preparation stage (130) until the negative pressure adsorption state disappears, and then remove the test sample; When the first guide roller assembly (400) moves to the edge of the adsorption area, the adsorption area is separated from the vacuum chamber (120) by the plugging component (200) and the adsorption area is kept under normal pressure. Then the adsorbed material is pressed with the metallized film (600) to form a test sample. The plugging component (200) includes a plugging disc (210) located at the lower end of the adsorption area. The lower end of the plugging disc (210) is connected to a vertically arranged plugging tube (220). A plugging connector (221) is provided at the bottom of the plugging tube (220). A plugging assembly (230) located above the plugging connector (221) is provided inside the plugging tube (220). The opening and closing of the plugging connector (221) can be controlled by adjusting the plugging assembly (230) to different positions. The upper end of the vacuum sample preparation stage (130) is provided with a touch component (700). The touch component (700) is located on the upper end of the vacuum sample preparation stage (130) outside the adsorption area one, between the adsorption area one and the gantry limiting component (300).

2. The sample preparation process for a metallized film adhesion test sample according to claim 1, characterized in that, The upper end of the vacuum sample preparation stage (130) is also slidably provided with a second guide roller assembly (500). The second guide roller assembly (500) is located between the first guide roller assembly (400) and the gantry limiting assembly (300). The second end of the metallized film (600) passes around the upper end of the second guide roller assembly (500) and is pressed against the lower surface of the first guide roller assembly (400).

3. The sample preparation process for a metallized film adhesion test sample according to claim 1, characterized in that, The plugging assembly (230) includes a plugging ball (231) located inside the plugging tube (220), and also includes a drive structure for controlling the lifting and lowering movement of the plugging ball (231). The drive structure controls the plugging ball (231) to move away from the plugging connector (221) to achieve communication between the plugging connector (221) and the inside of the plugging tube (220). The drive structure controls the plugging ball (231) to fit with the plugging connector (221) to achieve sealing between the plugging connector (221) and the inside of the plugging tube (220).

4. The sample preparation process for a metallized film adhesion test sample according to claim 3, characterized in that, The drive structure includes a plugging elastic telescopic rod (233) fixedly connected to the bottom of the plugging tube (220). The telescopic end of the plugging elastic telescopic rod (233) passes through the plugging tube (220) and is fixedly connected to a bearing ring (232). The bottom of the plugging elastic telescopic rod (233) is connected to a control pipe (234), and a regulating valve is provided in the control pipe (234).

5. The sample preparation process for a metallized film adhesion test sample according to claim 4, characterized in that, Both the touch component (700) and the regulating valve are hydraulic control valves, and the touch component (700) is connected to the regulating valve. Squeezing the touch component (700) controls the regulating valve to be in the conducting state.

6. The sample preparation process for a metallized film adhesion test sample according to claim 4, characterized in that, The touch component (700) is a flexible hydraulic telescopic rod. The first guide roller assembly (400) includes a slide rail (430), a slider (420) that slides on the upper end of the slide rail (430), and a guide roller (410) that is rotatably connected to the side wall of the slider (420). The telescopic end of the touch component (700) and the bottom of the slider (420) are both wedge-shaped, and the telescopic end of the touch component (700) is located on the moving path of the slider (420).

7. The sample preparation process for a metallized film adhesion test sample according to claim 1, characterized in that, The adhesive material is a hot-pressing material, and the upper end of the vacuum sample preparation stage (130) is also provided with a pressure heating component, which is opposite to the adsorption area.

8. The sample preparation process for a metallized film adhesion test sample according to claim 7, characterized in that, The pressurized heating component has a built-in electric heating plate, temperature sensor and pressure sensor. The electric heating plate has a temperature range of 50-300°C, an accuracy of ±2°C, and a heating time of 1-10 minutes.

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