Plasma spraying adhesive tape

Abstract

The utility model discloses a plasma spraying adhesive tape which comprises a winding disc, an adhesive tape body is wound on the winding disc, two grooves are formed in the side wall of the winding disc, fixing blocks are arranged in the two grooves, the adjacent sides of the two fixing blocks are jointly and fixedly connected with a cross rod, the cross rod is fixedly connected with a winding roller, and the winding roller is fixedly connected with a motor. The front sides of the two fixing blocks are jointly and fixedly connected with a rectangular plate. The adhesive tape is not easily influenced by high temperature, the plasma spraying quality is ensured, meanwhile, the protective layer is used for protecting the base layer, the base layer is prevented from being damaged or corroded in the transportation or storage process, the service life of the adhesive tape body is prolonged, meanwhile, the end of the adhesive tape body is convenient to find, and bubbles in the adhesion layer are reduced during adhesion.

Description

Technical Field

[0001] This utility model relates to the field of adhesive tape technology, and in particular to a plasma spraying adhesive tape. Background Technology

[0002] In the field of industrial production and manufacturing, plasma spraying technology, as an advanced material surface modification method, is widely used in many industries such as aerospace, machinery manufacturing, and electronic information. This technology utilizes the high temperature and high speed of a plasma arc to heat the coating material to a molten or semi-molten state, and then sprays it onto the workpiece surface at high speed to form a coating with special properties, thereby improving the workpiece's wear resistance, corrosion resistance, high temperature resistance, and other properties.

[0003] In plasma spraying operations, to precisely control the spraying area and prevent contamination or damage to areas that do not need to be sprayed, it is often necessary to use masking tape to protect these areas. However, existing plasma spraying tapes have many problems in practical use.

[0004] From the perspective of tape storage and retrieval, traditional tape is usually directly wound on the winding reel, which is extremely inconvenient when finding the starting end of the tape. This not only wastes time, but may also damage the tape due to improper operation, affecting the performance.

[0005] In terms of performance, plasma spraying generates high temperatures and high-speed particle streams, an environment that ordinary tapes struggle to withstand. The high temperatures can easily deform or melt the tape, causing it to lose its protective function and potentially contaminating the sprayed area. The impact of the high-speed particle streams can also cause the tape to detach from the workpiece surface, failing to effectively mask non-sprayed areas. Furthermore, some tapes are difficult to remove after spraying, leaving adhesive residue that affects the surface quality of the workpiece and subsequent processing.

[0006] In addition, the existing tape structure design may cause air bubbles to easily form during the application process, resulting in poor adhesion between the tape and the workpiece surface, which reduces the masking effect and affects the quality of plasma spraying.

[0007] Therefore, it is necessary to design a plasma spraying adhesive to solve the above problems. Utility Model Content

[0008] The purpose of this invention is to address the shortcomings of existing technologies by proposing a plasma spraying tape. This tape is not easily affected by high temperatures, ensuring the quality of plasma spraying. At the same time, it uses a protective layer to protect the substrate, preventing damage or corrosion to the substrate during transportation or storage, thus extending the service life of the tape body. It also makes it easier to find the ends of the tape body and reduces the generation of air bubbles in the adhesive layer during adhesion.

[0009] To achieve the above objectives, the present invention adopts the following technical solution:

[0010] A plasma spraying tape includes a winding reel on which the tape body is wound. The side wall of the winding reel has two grooves, and each groove has a fixing block. The adjacent sides of the two fixing blocks are fixedly connected to a crossbar, and a winding roller is fixedly connected to the crossbar. The front sides of the two fixing blocks are fixedly connected to a rectangular plate.

[0011] Preferably, the two fixed blocks are rotatably connected to the opposite sides of each other, and each of the two fixed blocks is fixedly connected to a connecting block. Each of the two connecting blocks is threaded with a bolt. The upper and lower sides of the winding disc are provided with damping layers, and both of the damping layers are annular.

[0012] Preferably, the tape body includes a base layer, a protective layer is provided on the front side of the base layer, a high-temperature resistant coating is provided on the rear side of the base layer, an adhesive layer is provided on the rear side of the high-temperature resistant coating, and a release layer is provided on the rear side of the adhesive layer.

[0013] Preferably, one end of the protective layer is fixedly connected to the winding roller.

[0014] Preferably, the base layer is a 0.08mm polyimide film, the high-temperature resistant coating material is alumina, the high-temperature resistant coating material is sprayed onto the base layer by a spraying process, the adhesive layer is made of high-temperature resistant pressure-sensitive adhesive, and the release layer is made of release paper or release film.

[0015] Preferably, the thickness of the release layer is 0.12 mm, the thickness of the adhesive layer is 0.04 mm, and the thickness of the high-temperature resistant coating is 0.02 mm.

[0016] Compared with existing technologies, the advantages of this device are:

[0017] 1. Compared with existing technologies, this device, by setting grooves, fixing blocks, crossbars, and winding rollers on the side wall of the winding reel, and with one end of the protective layer fixedly connected to the winding roller, facilitates users to quickly find the end of the tape, solving the problem of difficulty in finding the starting end of traditional tapes. Simultaneously, during storage, the protective layer prevents the substrate from being scratched, worn, or subjected to mechanical damage, as well as from the adhesion of contaminants such as dust, dirt, and liquids, maintaining the flatness of the substrate and extending the service life of the tape.

[0018] 2. Compared with existing technologies, the tape body structure of the device is reasonably designed. The base layer is made of polyimide film, and the high-temperature resistant coating is made of alumina material and formed by spraying process. Combined with the adhesion layer made of high-temperature pressure-sensitive adhesive, the tape has good high-temperature resistance and mechanical strength. It can withstand the impact of high temperature and high-speed particle flow generated during plasma spraying and is not easy to deform, melt or fall off. Compared with ordinary tape, it can more effectively protect the non-sprayed area of ​​the workpiece and improve the quality and stability of plasma spraying process.

[0019] 3. Compared with existing technologies, this device can use the rotation of the winding roller to roll up the protective layer when peeling off the release layer for pasting, so that the protective layer is separated from the base layer. At the same time, the base layer can be pressed during the winding process, which effectively reduces the generation of air bubbles in the tape, making the adhered tape smoother and more tightly attached to the workpiece surface, thereby improving the masking effect of the tape and avoiding spraying quality problems caused by air bubbles and poor adhesion. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of a plasma spraying tape proposed in this utility model;

[0021] Figure 2 for Figure 1 A structural diagram from another perspective;

[0022] Figure 3 This is a partial cross-sectional view of the tape body.

[0023] In the diagram: 1. Winding disc, 2. Damping layer, 3. Groove, 4. Rectangular plate, 5. Fixing block, 6. Winding roller, 7. Shaft, 8. Connecting block, 9. Bolt, 10. Tape body, 11. Release layer, 12. Adhesive layer, 13. High temperature resistant coating, 14. Base layer, 15. Protective layer. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Reference Figures 1-3 A plasma spraying tape includes a winding reel 1, on which a tape body 10 is wound. The side wall of the winding reel 1 is provided with two grooves 3, and each of the two grooves 3 is provided with a fixing block 5. The adjacent sides of the two fixing blocks 5 are fixedly connected to a crossbar, and a winding roller 6 is fixedly connected to the crossbar. The front sides of the two fixing blocks 5 are fixedly connected to a rectangular plate 4.

[0026] Among them, the two fixed blocks 5 are rotatably connected to the opposite sides of the rotating shaft 7, the two rotating shaft 7 are fixedly connected to the connecting block 8, and the two connecting blocks 8 are threadedly connected to the bolt 9. The upper and lower sides of the winding disc 1 are provided with damping layers 2. Both damping layers 2 are annular. When the bolt 9 is tightened, it is tightly pressed on the damping layer 2, making it difficult for the fixed block 5 to separate from the winding disc 1.

[0027] The tape body 10 includes a base layer 14, a protective layer 15 on the front side of the base layer 14, a high-temperature resistant coating 13 on the rear side of the base layer 14, an adhesive layer 12 on the rear side of the high-temperature resistant coating 13, a release layer 11 on the rear side of the adhesive layer 12, and one end of the protective layer 15 is fixedly connected to the winding roller 6.

[0028] The base layer 14 is made of 0.08mm polyimide film. Polyimide film has good high temperature resistance and mechanical strength, and can provide a stable support structure for the tape. The high temperature resistant coating 13 is made of alumina. The alumina coating further improves the high temperature resistance and resistance to particle flow impact of the tape. The high temperature resistant coating 13 is sprayed onto the base layer 14 by a spraying process. The adhesion layer 12 is made of high temperature resistant pressure-sensitive adhesive. A peelable additive with a mass fraction of 12% can be added to the high temperature resistant pressure-sensitive adhesive to improve the peelability of the tape. The release layer 11 is made of release paper or release film. The thickness of the release layer 11 is 0.12mm. The thickness of the adhesion layer 12 is 0.04mm. The thickness of the high temperature resistant coating 13 is 0.02mm.

[0029] The functional principle of this utility model can be explained through the following operation: When the plasma spraying tape is needed, since the protective layer 15 is connected to the winding roller 6 and is set on the outside, the user can easily find the starting end of the tape.

[0030] Then rotate the two bolts 9 to disengage them from the damping layer 2. Then rotate the two connecting blocks 8 to make the two bolts 9 flush with the rectangular plate 4. At this point, the tape body 10 can be stretched. Then peel off the release layer 11 and initially adhere the adhesive layer 12 on the tape body 10 to the corresponding position. Press the winding roller 6 onto the surface of the product and push the winding roller 6 to move closer to the winding reel 1. At this time, the winding roller 6 is in a rotating state. On the one hand, it can press the tape body 10 tightly onto the surface of the product. On the other hand, during the movement of the winding roller 6, it can wrap the protective layer 15 around the winding roller 6, so that the protective layer 15 is separated from the base layer 14. After the winding and compaction are completed, cut the adhesive layer 12, the high-temperature coating 13 and the base layer 14 on the tape body 10 at the appropriate position.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A plasma sprayed tape comprising a winding disc (1), characterized in that: The winding disc (1) is wound with the adhesive tape body (10), the side wall of the winding disc (1) is provided with two grooves (3), the two grooves (3) are both provided with fixing blocks (5), the adjacent sides of the two fixing blocks (5) are commonly fixedly connected with a cross rod, the cross rod is fixedly connected with a winding roller (6), and the front sides of the two fixing blocks (5) are commonly fixedly connected with a rectangular plate (4).

2. A tape for plasma spraying according to claim 1, wherein: The opposite sides of the two fixing blocks (5) are both rotationally connected with rotating shafts (7), the rotating shafts (7) are both fixedly connected with connecting blocks (8), the connecting blocks (8) are both screw-connected with bolts (9), and the upper and lower sides of the winding disc (1) are both provided with damping layers (2), and the two damping layers (2) are both annular.

3. The tape of claim 1 wherein: The adhesive tape body (10) comprises a base layer (14), the front side of the base layer (14) is provided with a protective layer (15), the rear side of the base layer (14) is provided with a high-temperature-resistant coating layer (13), the rear side of the high-temperature-resistant coating layer (13) is provided with an adhesion layer (12), and the rear side of the adhesion layer (12) is provided with a release layer (11).

4. A tape for plasma spraying according to claim 3, wherein: One end of the protective layer (15) is fixedly connected with the winding roller (6).

5. The tape of claim 3 wherein: The base layer (14) is made of 0.08mm polyimide film, the high-temperature-resistant coating layer (13) is made of aluminum oxide, the high-temperature-resistant coating layer (13) is sprayed on the base layer (14) through a spraying process, the adhesion layer (12) is made of high-temperature-resistant pressure-sensitive adhesive, and the release layer (11) is made of release paper or release film.

6. A tape for plasma spraying according to claim 5, wherein: The thickness of the release layer (11) is 0.12mm, the thickness of the adhesion layer (12) is 0.04mm, and the thickness of the high-temperature-resistant coating layer (13) is 0.02mm.

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