Wear-resistant aluminum profile with an oxidation-resistant coating
By setting multi-layer composite coatings and internal T-slot reinforcement structures on aluminum profiles, the problems of poor wear resistance and insufficient corrosion resistance of aluminum profiles are solved, achieving wear resistance, corrosion prevention and automatic repair effects, and improving the stability of equipment use and environmental adaptability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI YIXINGGE ALUMINUM TECHNOLOGY CO LTD
- Filing Date
- 2025-09-04
- Publication Date
- 2026-07-14
AI Technical Summary
Existing aluminum profiles have poor surface wear resistance and are prone to wear and deformation. When subjected to friction and impact for a long time, the surface is prone to scratches and dents, resulting in decreased dimensional accuracy, insufficient corrosion resistance, and affecting the corrosion resistance and environmental adaptability of the equipment. The graphic accuracy is reduced, and the environmental adaptability is weak. When used in coastal areas, pitting corrosion and oxidation discoloration are likely to occur.
It adopts a multi-layer composite coating structure, including a substrate layer, a sand layer, a transition layer and an anti-oxidation and wear-resistant coating. The coating consists of an anodized film layer, a ceramic composite coating and a powder spraying layer. An electrophoretic coating and a self-healing coating are added to the functional layer. The substrate layer has T-grooves inside and L-shaped reinforcing corner brackets at the four corners.
It enhances the wear resistance and corrosion resistance of aluminum profiles, reduces maintenance costs, improves equipment precision and environmental adaptability, prevents scratches and dents from automatically repairing themselves, avoids the impact of equipment precision, and enhances structural stability.
Smart Images

Figure CN224498163U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of aluminum profile technology, and in particular to a wear-resistant aluminum profile with an anti-oxidation coating. Background Technology
[0002] Aluminum profiles are engineering materials made from aluminum alloys (mainly containing aluminum) through hot-melt extrusion processes. Their cross-sections can be customized. With their lightweight, high strength, and corrosion resistance, they have become one of the core basic materials of modern industry and are widely used in construction, transportation, electronics, and machinery manufacturing.
[0003] In the existing technology, aluminum profiles have poor surface wear resistance and are easily worn and deformed. When subjected to friction and impact for a long time, scratches and dents are easily formed on the surface. Wear may even lead to a decrease in dimensional accuracy, affecting the fitting accuracy of equipment. In addition, the corrosion resistance is limited and the environmental adaptability is weak. When used in coastal areas, the surface is prone to pitting and oxidation discoloration. Utility Model Content
[0004] The purpose of this utility model is to solve the problems of poor surface wear resistance, easy wear and deformation of aluminum profiles in the prior art, and easy scratches and dents on the surface when subjected to friction and impact for a long time. Wear can even lead to a decrease in dimensional accuracy, affecting the fitting accuracy of equipment. In addition, the corrosion resistance is limited and the environmental adaptability is weak. When used in coastal areas, the surface is prone to pitting and oxidation discoloration. Therefore, a wear-resistant aluminum profile with an anti-oxidation coating is proposed.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: including: a substrate layer, wherein an edge T-shaped groove is formed inside the substrate layer, a sand layer is provided on the outer wall of the substrate layer, a transition layer is provided on the outer wall of the sand layer, and an anti-oxidation and wear-resistant coating is provided on the outer wall of the transition layer.
[0006] The anti-oxidation and wear-resistant coating includes an anodic oxide film layer, the outer wall of which is provided with a ceramic composite coating layer, and the outer wall of which is provided with a powder coating layer.
[0007] Preferably, the powder coating comprises epoxy resin, fluorocarbon resin, and ceramic particles.
[0008] Preferably, the outer wall of the anti-oxidation and wear-resistant coating is provided with a functional layer, which includes an electrophoretic coating and a self-healing coating.
[0009] Preferably, the electrophoretic coating is disposed on the outer wall of the powder coating, and the self-healing coating is disposed on the outer wall of the electrophoretic coating.
[0010] Preferably, each of the four corners of the substrate layer is provided with an L-shaped reinforcing corner bracket to enhance the structural stability of the aluminum profile.
[0011] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0012] 1. In this utility model, by setting an anti-oxidation and wear-resistant coating and a functional layer, the wear resistance and corrosion resistance of the aluminum profile surface are enhanced. During long-term use, when minor scratches and dents appear on the surface, the material properties can automatically repair these minor scratches and dents, reducing the maintenance cost of the aluminum profile during use. It has continuous protection performance, avoiding the impact of wear on equipment precision during use. At the same time, the anti-oxidation and wear-resistant coating improves the aluminum profile's environmental adaptability and corrosion resistance, avoiding the problem of limited protection when used in coastal areas.
[0013] 2. In this utility model, by opening an edge T-groove inside the substrate layer, it is easy to achieve rapid splicing, while reducing the concentrated stress generated during use and reducing the risk of breakage and deformation. Furthermore, L-shaped reinforcing corner brackets are set at the four corners of the substrate layer to enhance the edge strength of the aluminum profile and prevent the aluminum profile substrate from separating from the coating, thus affecting the overall protective function. Attached Figure Description
[0014] Figure 1 A perspective view of a wear-resistant aluminum profile with an anti-oxidation coating is provided for this utility model;
[0015] Figure 2 This utility model provides a structural breakdown diagram of a wear-resistant aluminum profile with an anti-oxidation coating;
[0016] Figure 3 This utility model proposes a wear-resistant aluminum profile with an anti-oxidation coating. Figure 3 Enlarged view of point A in the middle;
[0017] Figure 4 This utility model proposes a structural diagram of the anti-oxidation and wear-resistant coating in a wear-resistant aluminum profile with an anti-oxidation coating.
[0018] Legend: 1. Substrate layer; 2. Edge T-groove; 3. Sand layer; 4. Transition layer; 5. Anti-oxidation and wear-resistant coating; 501. Anodized film layer; 502. Ceramic composite coating; 503. Powder coating; 5031. Epoxy resin; 5032. Fluorocarbon resin; 5033. Ceramic particles; 6. Functional layer; 601. Electrophoretic coating; 602. Self-healing coating; 7. L-shaped reinforced corner bracket. Detailed Implementation
[0019] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0020] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.
[0021] Example 1: As Figures 1-4 As shown, this utility model provides a wear-resistant aluminum profile with an anti-oxidation coating, including: a base layer 1, an edge T-groove 2 is provided inside the base layer 1, a sand layer 3 is provided on the outer wall of the base layer 1, a transition layer 4 is provided on the outer wall of the sand layer 3, and an anti-oxidation and wear-resistant coating 5 is provided on the outer wall of the transition layer 4.
[0022] The anti-oxidation and wear-resistant coating 5 includes an anodic oxide film layer 501, a ceramic composite coating layer 502 is provided on the outer wall of the anodic oxide film layer 501, and a powder coating layer 503 is provided on the outer wall of the ceramic composite coating layer 502.
[0023] The overall effect of Embodiment 1 is as follows: by using rust-resistant aluminum as the substrate layer 1, this material performs exceptionally well in scenarios requiring corrosion resistance, processing performance, and lightweighting. An edge T-slot 2 is formed inside the substrate layer 1, achieving multiple benefits such as flexible connection, rapid assembly, and functional expansion through standardized slot design. It is widely used in automated equipment frames, assembly lines, workbenches, and other scenarios. The T-slot opening and inner wall can form multi-point contact with other components through connectors, allowing external forces to be evenly distributed throughout the profile, reducing local stress concentration and lowering the risk of deformation or breakage during connection and use. The outer wall of the substrate layer 1 is sprayed with ceramic sand using a spraying process, forming a rough surface sand layer 3. Its function is to enhance the adhesion between subsequent coatings and the aluminum substrate, reduce interfacial reactions, and provide a stable base for the upper coating. A transition layer 4 is provided on the outer wall of the sand layer 3. The transition layer 4 consists of a zinc-based phosphate layer, whose core function is to improve the adhesion of subsequent coatings, enhance corrosion resistance, and improve the surface properties of the aluminum profile. The outer wall of the transition layer 4 is provided with an anti-oxidation and wear-resistant coating 5, which aims to improve the anti-oxidation, wear resistance and corrosion resistance of the aluminum profile. A functional layer 6 is provided on the outer wall of the anti-oxidation and wear-resistant coating 5 to improve the durability, aesthetics and ease of maintenance of the aluminum profile.
[0024] Example 2: Figures 1-4 As shown, the powder coating 503 includes epoxy resin 5031, fluorocarbon resin 5032 and ceramic particles 5033; the outer wall of the anti-oxidation and wear-resistant coating 5 is provided with a functional layer 6, which includes an electrophoretic coating 601 and a self-healing coating 602; the electrophoretic coating 601 is provided on the outer wall of the powder coating 503, and the self-healing coating 602 is provided on the outer wall of the electrophoretic coating 601; L-shaped reinforcing corner brackets 7 are provided at all four corners of the substrate layer 1 to enhance the structural stability of the aluminum profile.
[0025] The overall effect of Embodiment 2 is as follows: by adopting a multi-layer composite anti-oxidation and wear-resistant coating 5, which can be divided into an anodic oxide film layer 501, a ceramic composite coating 502, and a powder coating layer 503 from the inner layer to the outer layer, the porous structure oxide film formed by anodizing improves the anti-oxidation and wear resistance performance. Its porous structure can adsorb dyes (coloring) or sealing agents (further improving corrosion resistance), and has high hardness and basic wear resistance. Then, the ceramic composite coating 502 is formed by sputtering process. It is composed of alumina, silicon oxide, etc., and its thermal expansion coefficient is more matched with that of the aluminum substrate, reducing the cracking of the surface ceramic caused by temperature changes, while improving the overall wear resistance. Then, epoxy resin 5031, fluorocarbon resin 5032 and ceramic particles 5033 are fused to form a powder coating, which is directly coated on the surface of the ceramic composite coating 502 to enhance the adhesion between the anti-oxidation and wear-resistant coating 5 and the functional layer 6, and provide preliminary anti-corrosion protection. Then, using an electrophoretic process, the aluminum profile is used as an electrode. An electric current is passed through a water-soluble coating to deposit the coating particles, forming an electrophoretic coating 601. The main component of this coating is acrylic resin, and its function focuses on basic protection, appearance consistency, and environmental adaptability. A self-healing coating 602 is applied to the outer wall of the electrophoretic coating 601. This self-healing coating 602 is an intelligent coating containing special functional components (such as microcapsules and reversible chemical groups), which can automatically repair itself when minor scratches or damage occur. Its function focuses on reducing maintenance costs and maintaining continuous protection. Finally, L-shaped reinforcing corner brackets 7 are installed at all four corners of the substrate layer 1 to increase the aluminum profile's resistance to pressure and impact, improve structural stability, and prevent the substrate layer 1 and coating from separating during use, which would affect the wear resistance and corrosion resistance of the aluminum profile.
[0026] Working Principle: This aluminum profile uses rust-resistant aluminum as the base layer 1. This material excels in applications requiring corrosion resistance, processing performance, and lightweight design. An edge T-slot 2 is created within the base layer 1. This standardized slot design enables flexible connection, rapid assembly, and functional expansion, offering multiple benefits. It is widely used in automated equipment frames, assembly lines, workbenches, and other applications. The T-slot opening and inner wall can form multi-point contact with other components through connectors, evenly distributing external forces (such as load-bearing and vibration) throughout the profile, reducing localized stress concentration and lowering the risk of deformation or breakage during connection and use. The outer wall of the base layer 1 is coated with ceramic sand using a spraying process, forming a rough surface sand layer 3. This sand layer enhances the adhesion between subsequent coatings and the aluminum substrate, reduces interfacial reactions, and provides a stable base for the upper coating. A transition layer 4, composed of a zinc-based phosphate layer, is located on the outer wall of the sand layer 3. Its core function is to improve the adhesion of subsequent coatings, enhance corrosion resistance, and improve the surface properties of the aluminum profile. The outer wall of the transition layer 4 is coated with an anti-oxidation and wear-resistant coating 5 to improve the aluminum profile's anti-oxidation, wear resistance, and corrosion resistance. A functional layer 6 is then applied to the outer wall of the anti-oxidation and wear-resistant coating 5 to enhance the aluminum profile's durability, aesthetics, and ease of maintenance. L-shaped reinforcing corner brackets 7 are installed at all four corners of the substrate layer 1 to increase the aluminum profile's resistance to pressure and impact, improve structural stability, and prevent the substrate layer 1 from separating from the coating during use, which would affect the aluminum profile's wear resistance and corrosion resistance.
[0027] In the design of the anti-oxidation and wear-resistant coating 5 of the aluminum profile, a multi-layer composite structure is adopted. From the inner layer to the outer layer, it can be divided into an anodized film layer 501, a ceramic composite coating 502, and a powder coating layer 503. The porous structure oxide film formed by anodizing improves the anti-oxidation and wear resistance. Its porous structure can adsorb dyes (coloring) or sealing agents (further improving corrosion resistance). It has high hardness and basic wear resistance. Then, the ceramic composite coating 502 is formed by sputtering process. It is composed of aluminum oxide, silicon oxide, etc., which is more compatible with the thermal expansion coefficient of the aluminum substrate, reducing the cracking of the surface ceramic caused by temperature changes, and improving the overall wear resistance. Then, epoxy resin 5031, fluorocarbon resin 5032 and ceramic particles 5033 are fused to form a powder coating, which is directly coated on the surface of the ceramic composite coating 502 to enhance the adhesion between the anti-oxidation and wear-resistant coating 5 and the functional layer 6, and provide preliminary anti-corrosion protection.
[0028] In the design of functional layer 6 of aluminum profile, the aluminum profile is used as an electrode by electrophoresis process. The electrophoretic coating 601 is formed by passing an electric current through a water-soluble coating to deposit the coating particles into a film. The main component is acrylic resin. Its function is focused on basic protection, appearance consistency and environmental adaptability. The outer wall of the electrophoretic coating 601 is provided with a self-healing coating 602. The self-healing coating 602 is an intelligent coating containing special functional components (such as microcapsules and reversible chemical groups). It can automatically repair itself when the coating has minor scratches or damage. Its function is focused on reducing maintenance costs and maintaining the continuity of protection.
[0029] The above-mentioned coating on the aluminum profile structure enhances the wear resistance and corrosion resistance of the aluminum profile surface. During long-term use, when minor scratches or dents appear on the surface, the material properties can automatically repair these minor scratches and dents, reducing the maintenance cost of the aluminum profile during use. It has continuous protection performance and avoids the impact of wear on the accuracy of the equipment during use.
[0030] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.
Claims
1. A wear-resistant aluminum profile with an oxidation-protective coating, characterized in that include: The substrate layer (1) has an edge T-groove (2) inside, and a sand layer (3) is provided on the outer wall of the substrate layer (1). A transition layer (4) is provided on the outer wall of the sand layer (3), and an anti-oxidation and wear-resistant coating (5) is provided on the outer wall of the transition layer (4). The anti-oxidation and wear-resistant coating (5) includes an anodic oxide film layer (501), the outer wall of the anodic oxide film layer (501) is provided with a ceramic composite coating layer (502), and the outer wall of the ceramic composite coating layer (502) is provided with a powder spraying coating layer (503).
2. The wear-resistant aluminum profile with an oxidation-preventing coating according to claim 1, characterized in that: The powder coating (503) includes epoxy resin (5031), fluorocarbon resin (5032) and ceramic particles (5033).
3. The wear-resistant aluminum profile with an oxidation-preventing coating according to claim 1, characterized in that: The outer wall of the anti-oxidation and wear-resistant coating (5) is provided with a functional layer (6), which includes an electrophoretic coating (601) and a self-healing coating (602).
4. A wear-resistant aluminium profile with an oxidation-protective coating according to claim 3, characterized in that: The electrophoretic coating (601) is disposed on the outer wall of the powder coating (503), and the self-healing coating (602) is disposed on the outer wall of the electrophoretic coating (601).
5. The wear-resistant aluminum profile with an anti-oxidation coating according to claim 1, characterized in that: The four corners of the substrate layer (1) are provided with L-shaped reinforcing corner brackets (7) to enhance the stability of the aluminum profile structure.