Galvanized angle code embedded parts are very easy to rust in a humid environment, and the anti-rust coating is the key to its resistance to erosion. I will analyze the protection mechanism of the anti-rust coating in a humid environment from the perspectives of coating structure, anti-rust principle, and galvanizing process.
In a humid environment, the rust problem of metal materials has always been a major hidden danger affecting the stability of building structures, and galvanized angle code embedded parts are no exception. However, the anti-rust coating on its surface is like a solid protective barrier, which can effectively resist the erosion of the humid environment, extend the service life of the embedded parts, and ensure the safety and stability of the building structure. The protective effect of the anti-rust coating is achieved through the synergy of multiple technical means and material properties.
The protection of the anti-rust coating first benefits from its tight physical isolation. When the galvanized angle code embedded parts are coated with an anti-rust coating, the coating will form a continuous and dense film on its surface. This film is like a "waterproof coat" for the embedded parts, isolating the embedded parts from the humid air, moisture, and possible corrosive substances in the outside world. In a humid environment, moisture is one of the key factors that cause metal corrosion. The presence of the anti-rust coating prevents moisture from directly contacting the metal surface of the embedded parts, cuts off the conditions for the occurrence of rust reactions from the root, and effectively protects the metal body of the embedded parts.
The chemical composition of the anti-rust coating also plays an important role in resisting erosion. Many anti-rust coatings contain special corrosion inhibitor components, which can be adsorbed or chemically reacted on the metal surface to form an extremely thin protective film. When a small amount of moisture or corrosive substances breaks through the physical isolation of the coating and contacts the metal surface, the protective film formed by the corrosion inhibitor will immediately take effect. It can inhibit the oxidation reaction of the metal, slow down the dissolution rate of metal ions, and reduce the rate of rust reactions. This chemical protection is like adding a layer of "chemical shield" to the embedded parts, further enhancing their corrosion resistance in a humid environment.
The galvanizing process is an important basis for the anti-rust coating to play a role. The anti-rust coating of galvanized angle code embedded parts is usually constructed based on the galvanized layer, which itself has good anti-rust properties. Zinc is a more active metal than iron. When the galvanized layer comes into contact with humid air, zinc will react with oxygen in the air first, forming a zinc oxide film on the surface. This zinc oxide film is dense and can prevent oxygen and moisture from further penetrating into the interior, thereby protecting the metal underneath. Even if there is a slight damage on the surface of the galvanized layer, the exposed zinc will continue to undergo oxidation reaction, "self-repair" the damaged part, continue to provide protection for the embedded parts, and cooperate with the anti-rust coating on the surface to form a double protection system.
The structural design of the anti-rust coating also fully considers the characteristics of the humid environment. It often adopts a multi-layer structure, and each layer has different functions. The innermost layer is in direct contact with the metal surface of the embedded part, has good adhesion, and can be firmly attached to the metal; the middle layer mainly plays a filling and reinforcement role, enhancing the overall strength and density of the coating; the outermost layer has excellent waterproof and anti-fouling properties, and can resist various erosions in the external humid environment. This multi-layer structure is like a solid fortress, with layers of defense from the inside to the outside, effectively resisting the erosion of the embedded parts by the humid environment, ensuring that the embedded parts still maintain good performance under long-term humid conditions.
In actual use, the durability of the anti-rust coating has also been specially designed. It can adapt to the frequent changes in temperature and humidity in a humid environment, and will not crack or peel off due to fluctuations in environmental conditions. The coating material has good flexibility and weather resistance. When the temperature changes, it can deform with the thermal expansion and contraction of the embedded metal and always keep a close fit. At the same time, its anti-ultraviolet and anti-aging properties can also ensure that it will not easily lose its protective function in long-term exposure to a humid environment, and continue to provide reliable anti-rust protection for galvanized angle code embedded parts.
In addition, the combination of the anti-rust coating and the galvanized angle code embedded parts has also been carefully processed. Before applying the anti-rust coating, the surface of the embedded parts will be strictly pre-treated, including cleaning, polishing and other processes to remove oil, rust and impurities on the surface and make the surface reach a certain degree of roughness. Such pretreatment can increase the contact area between the coating and the metal surface and improve the adhesion of the coating. When the anti-rust coating is applied to the pre-treated surface, it can be closely bonded to the metal to form a solid whole, and it is not easy for the coating to fall off, so as to better play the role of resisting the erosion of the humid environment.
The anti-rust coating of the galvanized angle code embedded parts resists the erosion of the humid environment in all aspects through physical isolation, chemical component protection, galvanizing process coordination, multi-layer structure design, good durability and strong bonding method. It provides reliable protection for the galvanized angle code embedded parts, ensures that the embedded parts can play a role in the humid environment for a long time and stably, and lays a solid foundation for the safety and stability of the building structure.
