A finished roll of non-stick alloy

Abstract

The utility model provides a finished product roll anti -adhesion alloy, including roll alloy main part, anti -adhesion layer, anti -adhesion upper film, anti -adhesion lower film, anti -adhesion boss and through -hole, the upper and lower surfaces of roll alloy main part all are provided with anti -adhesion layer, its upper and lower surfaces are provided with anti -adhesion upper film and anti -adhesion lower film respectively, the anti -adhesion upper film is uniformly distributed with anti -adhesion boss, and the anti -adhesion lower film is uniformly distributed with the through -hole, the utility model discloses cooperate through anti -adhesion layer, anti -adhesion upper film sphere boss and anti -adhesion lower film grid through -hole, will surface contact change into point contact, reduces the risk of sticking together, the film isolation environment of upper and lower, prevents scratching and buffers impact, reduces the degree of deformation.

Description

Technical Field

[0001] This utility model belongs to the field of roll material technology, and in particular relates to an anti-adhesion coating for finished rolls. Background Technology

[0002] In various fields of coil production and application, coil adhesion has long been a problem hindering industry development. Taking the aluminum processing industry as an example, when finishing equipment such as bending levelers, rewinding machines, slitting machines, and cross-cutting machines unwind, shear, and coil aluminum coils, poor coil shape often leads to interlayer adhesion on the coil surface, seriously affecting product quality. Especially as finishing lines develop towards wider widths and larger diameters, such as expanding aluminum coil widths from less than 1700mm to 2150mm and weights from less than 10 tons to 26 tons, the problem of coil adhesion becomes increasingly prominent. The significant differences in physical properties of aluminum alloys of different alloy grades and in different states make it extremely difficult to solve the adhesion problem through process optimization. At the same time, the large variations in the coil weight during the production of wide and large diameter coils lead to large variations in the deflection of the coiling mechanism, further increasing the complexity and difficulty of solving the adhesion problem, and causing significant losses in product yield.

[0003] Therefore, it is essential to invent a pre-coated anti-adhesion coating. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a finished roll anti-adhesion coating, including a roll alloy body, an anti-adhesion layer, an upper anti-adhesion film, a lower anti-adhesion film, anti-adhesion protrusions, and through holes. The upper and lower surfaces of the roll alloy body are provided with an anti-adhesion layer, and the upper and lower surfaces are respectively provided with an upper anti-adhesion film and an lower anti-adhesion film. The upper anti-adhesion film is evenly distributed with anti-adhesion protrusions, and the lower anti-adhesion film is evenly distributed with through holes.

[0005] Preferably, the anti-stick layer is formed on the surface of the coil alloy body by heat treatment, and the anti-stick layer is an oxide film layer.

[0006] Preferably, an anti-sticking top film is provided on the anti-sticking layer formed on the upper surface of the coil alloy body. The anti-sticking top film is a thin film made of polymer material, wherein the anti-sticking protrusion is integrally injection molded and the anti-sticking protrusion has a spherical protrusion structure.

[0007] Preferably, an anti-sticking film is provided on the anti-sticking layer formed on the lower surface of the coil alloy body. The anti-sticking film is a thin film made of polymer material, and through holes in a grid shape are formed by laser cutting. The anti-sticking film is a grid-type film as a whole.

[0008] Compared with the prior art, the present invention has the following beneficial effects: This invention significantly improves the anti-sticking effect by setting anti-sticking layers on the upper and lower surfaces of the coil alloy body, and equipping them with anti-sticking upper and lower films with special structures. The oxide film layer formed by heat treatment on the surface of the coil alloy body serves as an anti-sticking layer, which itself has a certain anti-sticking effect and can reduce the direct contact between the alloy body and other substances. On this basis, the evenly distributed spherical protrusions (anti-sticking protrusions) on the anti-sticking upper film cooperate with the grid-shaped through holes formed by laser cutting on the anti-sticking lower film during coil winding, changing the contact between coil layers from surface contact to point contact, greatly reducing the contact area, and thus effectively reducing the risk of adhesion caused by intermolecular forces (such as van der Waals forces).

[0009] Furthermore, the coating design on the upper and lower surfaces of this invention provides excellent protection for the alloy coil. On one hand, the anti-stick upper and lower films act as physical barriers, isolating the alloy coil from the external environment and effectively preventing scratches on the alloy surface. For example, during coil handling or processing, sharp objects from the outside world first come into contact with the coating, avoiding direct contact with the alloy surface and thus reducing the possibility of scratches. On the other hand, this coating design enhances the deformation resistance of the alloy coil to a certain extent. When the alloy coil is subjected to external impacts, the coating can act as a buffer, absorbing some of the impact energy and reducing the degree of deformation caused by the impact. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model after winding.

[0011] Figure 2 This is a schematic diagram of the layered structure of this utility model.

[0012] In the picture: 1. Alloy body of the roll material; 2. Anti-adhesive layer; 3. Anti-adhesive upper film; 4. Anti-adhesive lower film; 5. Anti-adhesive protrusions; 6. Through holes. Detailed Implementation

[0013] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0014] In the description of the embodiments, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the present invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of the utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in the present utility model based on the specific circumstances.

[0015] As attached Figure 1 To be continued Figure 2 As shown: This utility model provides a finished roll anti-adhesive coating, including a roll alloy body 1, an anti-adhesive layer 2, an anti-adhesive upper film 3, an anti-adhesive lower film 4, anti-adhesive protrusions 5, and through holes 6. The roll alloy body 1 is provided with an anti-adhesive layer 2 on both its upper and lower surfaces, and the upper and lower surfaces are respectively provided with an anti-adhesive upper film 3 and an anti-adhesive lower film 4. The anti-adhesive protrusions 5 are evenly distributed on the anti-adhesive upper film 3, and the through holes 6 are evenly distributed on the anti-adhesive lower film 4.

[0016] Furthermore, the coil alloy body 1 can be made of alloy materials with good processing performance and mechanical properties, such as aluminum alloy and titanium-copper alloy. Through specific heat treatment (such as aging annealing, anodizing, etc.) of the coil alloy body 1, a uniform and dense anti-stick layer 2 is formed on its upper and lower surfaces. This anti-stick layer 2 is an oxide film layer, with a thickness typically controlled between 5-30 μm. This oxide film layer not only bonds firmly to the coil alloy body 1, providing a stable adhesion base for subsequent coating, but also, due to its chemical stability and low surface energy characteristics, initially plays an anti-stick role. Simultaneously, it enhances the corrosion resistance and hardness of the alloy surface, reducing direct erosion of the alloy body by the external environment.

[0017] Furthermore, after the anti-stick layer 2 on the upper surface of the coil alloy body 1 is formed, it is tightly connected to the anti-stick film 3 through hot pressing or adhesive bonding. The connection strength must be sufficient to prevent peeling during winding and unwinding. The anti-stick film 3 is made of a weather-resistant and flexible polymer material (such as PET, PP, or modified PE) with a thickness of 0.05-0.2mm. The anti-stick protrusions 5 are integrally formed with the anti-stick film 3 through an integrated injection molding process. Their material is the same as that of the anti-stick film 3. Each anti-stick protrusion 5 is a spherical protrusion structure with a diameter of 0.5-2mm and a height of 0.3-1mm, and they are evenly distributed in a matrix. The center-to-center distance between adjacent protrusions is 2-5mm. This design allows the anti-stick protrusions 5 to accurately correspond to the grid holes on the lower surface during coil winding, reducing the interlayer bonding area through point contact and enhancing the anti-stick effect.

[0018] Furthermore, the anti-stick layer 2 on the lower surface of the coil alloy body 1 is also stably connected to the anti-stick lower film 4 through hot pressing or adhesive bonding. The anti-stick lower film 4 is made of a polymer material compatible with the anti-stick upper film 3 (such as PET or PP of the same type), with a thickness of 0.05-0.2mm, to ensure the matching of the upper and lower films during winding. The anti-stick lower film 4 is formed with grid-shaped through holes 6 by laser cutting. The grid units can be square, rhomboid, or hexagonal, with a single grid side length of 1-3mm. The size and distribution density of the through holes 6 must be compatible with the anti-stick protrusions 5 on the upper surface to ensure that the anti-stick protrusions 5 can partially embed into the grid gaps of the through holes 6 or contact the grid edges during winding. The overall grid-like anti-stick lower film 4 not only provides an anti-stick function but also disperses the winding pressure through the grid structure, improving the tensile strength of the film.

[0019] The working principle is as follows: First, the anti-stick layer 2 (oxide film layer) builds a basic anti-stick system based on its own characteristics, reducing the direct interaction between the alloy surface and other substances, while providing stable adhesion conditions for the coating.

[0020] Secondly, during winding, the anti-sticking protrusions 5 and the through holes 6 work together to transform interlayer contact into point contact through the spherical protrusions to reduce the contact area, while the grid through holes provide accommodating space and form air channels, together reducing the risk of adhesion.

[0021] Furthermore, the upper anti-stick film 3 and the lower anti-stick film 4 act as physical barriers to block external friction and impacts, preventing scratches on the alloy surface. At the same time, they utilize flexibility to buffer impact forces and, in conjunction with the grid structure, disperse pressure to reduce the degree of deformation.

[0022] Finally, the multi-layer design maintains its non-stick effect during winding, and the coating can be peeled off when unfolded for use without affecting subsequent alloy processing, achieving a balance between protection and practicality.

[0023] Any technical solution that achieves the above-mentioned technical effects by utilizing the technical solution described in this utility model, or by designing a similar technical solution inspired by the technical solution described in this utility model, falls within the protection scope of this utility model.

Claims

1. A type of anti-adhesion coating for finished rolls, characterized in that, The material includes a coil alloy body (1), an anti-adhesive layer (2), an anti-adhesive upper film (3), an anti-adhesive lower film (4), anti-adhesive protrusions (5), and through holes (6). The upper and lower surfaces of the coil alloy body (1) are provided with an anti-adhesive layer (2), and the upper and lower surfaces are respectively provided with an anti-adhesive upper film (3) and an anti-adhesive lower film (4). The anti-adhesive upper film (3) is evenly distributed with anti-adhesive protrusions (5), and the anti-adhesive lower film (4) is evenly distributed with through holes (6).

2. The anti-adhesion coating for finished rolls as described in claim 1, characterized in that: The coil alloy body (1) is heat-treated to form the anti-stick layer (2) on its surface, and the anti-stick layer (2) is an oxide film layer.

3. The anti-adhesion coating for finished rolls as described in claim 2, characterized in that: An anti-stick film (3) is provided on the anti-stick layer (2) formed on the upper surface of the coil alloy body (1). The anti-stick film (3) is a thin film made of polymer material, wherein an anti-stick protrusion (5) is integrally injection molded. The anti-stick protrusion (5) is a spherical protrusion structure.

4. The anti-adhesion coating for finished rolls as described in claim 3, characterized in that: An anti-sticking film (4) is provided on the anti-sticking layer (2) formed on the lower surface of the coil alloy body (1). The anti-sticking film (4) is a thin film made of polymer material, and through holes (6) in the shape of a grid are formed by laser cutting. The anti-sticking film (4) is a grid-shaped thin film as a whole.

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