Wear-resistant flame-retardant fluorine rubber mat

Abstract

The utility model relates to a wear-resistant flame-retardant fluorine rubber mat, which comprises a positioning mat, a film coating layer, an outer flame-retardant ring, an inner flame-retardant ring and a bottom mat, the film coating layer is covered on the upper surface of the positioning mat and is fixedly connected with the positioning mat, and an inner vacant area and an outer vacant area are formed at the bottom of the positioning mat. The outer flame-retardant ring is arranged in a vacant area on the outer side of the bottom part of the positioning pad in a filling manner and is bonded and fixed with the positioning pad, and the outer flame-retardant ring and the bottom pad are arranged in a vacant area on the inner side of the bottom part of the positioning pad in a filling manner and are bonded and fixed with the positioning pad. In the use process of the fluorine rubber mat, the wear resistance of the fluorine rubber mat can be improved through the positioning mat and the bottom mat, so that the wear of the fluorine rubber mat is reduced, the service life of the fluorine rubber mat is prolonged, and the outer flame-retardant ring and the inner flame-retardant ring can form a protective layer when being influenced by flames in a use space to isolate air so as to prevent combustion, so that the service life of the fluorine rubber mat is prolonged. Therefore, the outer flame-retardant ring and the inner flame-retardant ring are used for improving the flame-retardant capability of the fluorine rubber mat.

Description

Technical Field

[0001] This utility model relates to the field of fluororubber pad technology, specifically a wear-resistant and flame-retardant fluororubber pad. Background Technology

[0002] Fluororubber possesses excellent resistance to hydrocarbons, corrosion, oils, and high temperatures. Particularly noteworthy is its outstanding compression resistance at high temperatures, making it widely used in aerospace, automotive, and petroleum industries. Fluororubber gaskets exhibit excellent high-temperature resistance, allowing for long-term use at 250°C and short-term use at 300°C. They also demonstrate exceptional aging and weather resistance. Furthermore, fluororubber exhibits extremely high stability against organic liquids, acids, alkalis, and oils, surpassing other types of rubber. Special fluororubber products, such as fluororubber gaskets, also show good resistance to hot water and high-temperature steam.

[0003] Despite its numerous advantages, fluororubber still has room for improvement in certain applications. In particular, traditional fluororubber products often struggle to meet both abrasion resistance and flame retardancy requirements. Insufficient abrasion resistance leads to rapid wear during use, affecting service life and performance; while poor flame retardancy can pose safety hazards in extreme situations such as fires. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] This invention provides a wear-resistant, flame-retardant fluoropolymer pad, which solves the problems mentioned in the background art.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a wear-resistant flame-retardant fluororubber pad, comprising a positioning pad, a coating layer, an outer flame-retardant ring, an inner flame-retardant ring, and a bottom pad. The upper surface of the positioning pad is covered with a coating layer, and the coating layer is fixedly connected to the positioning pad. The bottom of the positioning pad has two empty areas, an inner and an outer one. The outer flame-retardant ring is filled in the empty area on the outer side of the bottom of the positioning pad and is bonded and fixed to the positioning pad. The outer flame-retardant ring and the bottom pad are filled in the empty area on the inner side of the bottom of the positioning pad and are bonded and fixed to the positioning pad. The inner flame-retardant ring is located on the outer side of the bottom pad.

[0008] Preferably, the positioning pad includes an upper base layer and a lower base layer. The lower base layer is formed at the bottom of the upper base layer. The lower base layer is configured as an annular shape with an outer diameter smaller than that of the upper base layer. The internal cavity of the lower base layer forms a void area on the inner side of the bottom of the positioning pad. The gap between the outer edge of the lower base layer and the outer edge of the upper base layer forms a void area on the outer side of the bottom of the positioning pad. The positioning pad also includes an outer positioning ring and an inner positioning ring. The inner positioning ring is formed at the top center of the upper base layer, and the outer positioning ring is formed at the top outer edge of the upper base layer. The outer positioning ring and the inner positioning ring are used to cooperate with the coating layer to adhere and cover the upper surface of the upper base layer.

[0009] In a further preferred embodiment, the coating layer is a polytetrafluoroethylene film, and the coating layer is bonded to the positioning pad by an adhesive or by hot pressing.

[0010] In a further preferred embodiment, both the outer flame-retardant ring and the inner flame-retardant ring are configured as annular structures, and flame retardants are provided in the rubber matrix of both the outer flame-retardant ring and the inner flame-retardant ring.

[0011] In a further preferred embodiment, the lower surfaces of the positioning pad, the outer flame-retardant ring, the inner flame-retardant ring, and the bottom pad are coplanar, and the bottom pad is provided with carbon black particles or silicon dioxide particles.

[0012] (III) Beneficial Effects

[0013] Compared with the prior art, this utility model provides a wear-resistant, flame-retardant fluoropolymer pad with the following characteristics:

[0014] Beneficial effects:

[0015] In this invention, the coordinated arrangement of the positioning pad, the coating layer, the outer flame-retardant ring, the inner flame-retardant ring, and the bottom pad allows the fluororubber pad to improve its wear resistance during use. This reduces wear and extends its service life. Furthermore, the outer and inner flame-retardant rings form a protective layer when exposed to flames in the operating space, isolating air and preventing combustion. Thus, the flame-retardant ability of the fluororubber pad is enhanced by the outer and inner flame-retardant rings. Attached Figure Description

[0016] Figure 1 A cross-sectional view of a wear-resistant, flame-retardant fluororubber pad according to the implementation plan;

[0017] Figure 2 for Figure 1 A schematic diagram of the exploded structure of a wear-resistant, flame-retardant fluororubber pad.

[0018] Figure 3 for Figure 2 A schematic diagram of the structure of the combined wear-resistant and flame-retardant fluororubber pads.

[0019] In the diagram: 10, positioning pad; 11, upper base layer; 12, outer positioning ring; 13, inner positioning ring; 14, lower base layer; 20, coating layer; 30, outer flame retardant ring; 40, inner flame retardant ring; 50, bottom pad. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1 to 3 A wear-resistant, flame-retardant fluororubber pad includes a positioning pad 10, a coating layer 20, an outer flame-retardant ring 30, an inner flame-retardant ring 40, and a base pad 50. The upper surface of the positioning pad 10 is covered with the coating layer 20, which is fixedly connected to the positioning pad 10. The coating layer 20 enhances the overall wear resistance of the top of the fluororubber pad. The bottom of the positioning pad 10 has inner and outer void areas. The outer flame-retardant ring 30 fills the void area on the outer side of the bottom of the positioning pad 10 and is bonded and fixed to the positioning pad 10. The outer flame-retardant ring 30 and the base pad 50 fill the void area on the inner side of the bottom of the positioning pad 10 and are bonded and fixed to the positioning pad 10. The inner flame-retardant ring 40 is located on the outer side of the base pad 50, and both the inner and outer flame-retardant rings enhance the overall flame-retardant capability of the fluororubber pad. The base pad 50 enhances the overall wear resistance of the bottom of the fluororubber pad.

[0022] In this embodiment, the positioning pad 10 includes an upper base layer 11, an outer positioning ring 12, an inner positioning ring 13, and a lower base layer 14. The outer positioning ring 12 is formed at the top outer edge of the upper base layer 11, and the inner positioning ring 13 is formed at the top center of the upper base layer 11. An annular space is formed between the outer positioning ring 12 and the inner positioning ring 13. When setting the coating layer 20, a film made of polytetrafluoroethylene (PTFE) can be placed in this annular space to cover the outer positioning ring 12 and the inner positioning ring 13. Then, the coating layer 20 can be bonded and fixed to the positioning pad 10 with an adhesive or by hot pressing, so that the outer positioning ring 12 and the inner positioning ring 13 are used to fit and cover the upper surface of the upper base layer 11 with the coating layer 20. The molecular chain of PTFE is composed of carbon atoms and fluorine atoms. The electronegativity of fluorine is extremely high, which makes the structure of PTFE very stable and strong. This stable molecular chain structure provides the material with good wear resistance. The helical molecular chain of polytetrafluoroethylene (PTFE) results in very low intermolecular sliding resistance and thus an extremely low coefficient of friction. This characteristic makes PTFE less prone to wear during friction, thereby improving its wear resistance. The lower base layer 14 is formed at the bottom of the upper base layer 11, and the lower base layer 14 is annular with an outer diameter smaller than that of the upper base layer 11. The internal cavity of the lower base layer 14 forms a void area on the inner side of the bottom of the positioning pad 10, allowing the outer flame-retardant ring 30 to fill and be disposed on the outer side of the bottom of the positioning pad 10. The gap between the outer edge of the lower base layer 14 and the outer edge of the upper base layer 11 forms a void area on the outer side of the bottom of the positioning pad 10, allowing the outer flame-retardant ring 30 and the bottom pad 50 to fill and be disposed on the inner side of the bottom of the positioning pad 10.

[0023] In this embodiment, both the outer flame-retardant ring 30 and the inner flame-retardant ring 40 are configured as annular structures, and flame retardants are provided in the rubber matrix of both the outer flame-retardant ring 30 and the inner flame-retardant ring 40. The outer flame-retardant ring 30 and the inner flame-retardant ring 40 can provide double flame-retardant protection for the fluororubber pad as a whole. Furthermore, the flame retardants mixed into the rubber material of the outer flame-retardant ring 30 and the inner flame-retardant ring 40 can form a protective layer when the outer flame-retardant ring 30 and the inner flame-retardant ring 40 are affected by flames in the use space, thus isolating the air and preventing combustion.

[0024] In this embodiment, the lower surfaces of the positioning pad 10, outer flame-retardant ring 30, inner flame-retardant ring 40, and bottom pad 50 are coplanar. The bottom pad 50 contains carbon black particles or silica particles. As the main contact part between the bottom of the fluororubber pad and the outside, the addition of carbon black or silica particles to the fluororubber material increases the friction and adhesion between the rubber and carbon black due to the large specific surface area and fine particle size of carbon black, thus improving the reinforcing effect of the rubber. Furthermore, the carbon black particles form a network structure in the rubber, which can bear stress and hinder crack propagation, thereby improving the tear strength and abrasion resistance of the rubber. Alternatively, silica particles, with their extremely fine particle size and high surface activity, can adsorb rubber molecules to form a bonded adhesive, effectively limiting the deformation ability of rubber macromolecules. As a hard substance, silica can bear stress, hinder crack propagation, and branch large cracks. The slippage effect of the adsorbed rubber molecular chains on its surface relieves stress and achieves orientation reinforcement, thereby improving the tensile strength, tear strength, and abrasion resistance of the rubber. This allows the fluororubber pad to improve its wear resistance during use through the positioning pad 10 and the bottom pad 50, thereby reducing wear and extending its service life.

[0025] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as bonding, welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, bonding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A wear resistant, flame resistant, fluoroelastomer gasket, characterized in that, The positioning pad (10), the film layer (20), the outer fire-retardant ring (30), the inner fire-retardant ring (40) and the bottom pad (50) are included, the upper surface of the positioning pad (10) is provided with the film layer (20), and the film layer (20) and the positioning pad (10) are fixedly connected, the bottom of the positioning pad (10) is formed with an inner and outer two-part vacancy area, the outer fire-retardant ring (30) is filled in the vacancy area on the outer side of the bottom of the positioning pad (10) and is adhesively fixed with the positioning pad (10), the outer fire-retardant ring (30) and the bottom pad (50) are filled in the vacancy area on the inner side of the bottom of the positioning pad (10) and are adhesively fixed with the positioning pad (10), and the inner fire-retardant ring (40) is arranged on the outer side of the bottom pad (50).

2. A wear resistant, flame resistant, fluoroelastomer gasket as in claim 1, wherein: The positioning pad (10) includes an upper base layer (11) and a lower base layer (14), the lower base layer (14) is formed at the bottom of the upper base layer (11), the lower base layer (14) is arranged as an annular structure with an outer diameter smaller than that of the upper base layer (11), and the inner cavity of the lower base layer (14) constitutes the vacancy area on the inner side of the bottom of the positioning pad (10), and the gap between the outer edge of the lower base layer (14) and the outer edge of the upper base layer (11) constitutes the vacancy area on the outer side of the bottom of the positioning pad (10).

3. A wear resistant, flame resistant, fluoroelastomer gasket of claim 2, wherein: The positioning pad (10) further includes an outer positioning ring (12) and an inner positioning ring (13), the inner positioning ring (13) is formed at the center of the top of the upper base layer (11), and the outer positioning ring (12) is formed at the outer edge of the top of the upper base layer (11), and the outer positioning ring (12) and the inner positioning ring (13) are used to cooperate with the film layer (20) to cover the upper surface of the upper base layer (11).

4. A wear resistant, flame resistant, fluoroelastomer gasket of claim 3, wherein: The film layer (20) is arranged as a polytetrafluoroethylene film, and the film layer (20) and the positioning pad (10) are adhesively fixed by an adhesive or fixed by heat pressing.

5. The wear resistant, flame resistant, fluoroelastomer gasket of claim 1, wherein: The outer fire-retardant ring (30) and the inner fire-retardant ring (40) are both arranged as annular structures.

6. A wear resistant, flame resistant, fluoroelastomer gasket of claim 5 wherein: The lower surfaces of the positioning pad (10), the outer fire-retardant ring (30), the inner fire-retardant ring (40) and the bottom pad (50) are coplanar.

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