How does Closed Galvanized Barrel give it super corrosion resistance?
Publish Time: 2024-10-29
To give Closed Galvanized Barrel super corrosion resistance, it is necessary to start from multiple aspects such as material selection, surface treatment, design and manufacturing process.1. Material selectionHigh-purity zinc: Select high-purity zinc materials for galvanizing to ensure that the zinc layer has good corrosion resistance. High-purity zinc has a lower impurity content and can provide better chemical stability and corrosion resistance.High-quality steel: The base material of the barrel body should be selected from high-quality steel with good mechanical properties and surface flatness to ensure that the galvanized layer can be evenly covered on the entire surface.2. Surface treatmentPretreatment: Before galvanizing, the steel surface is fully pretreated, including degreasing, rust removal and phosphating. These steps can remove surface pollutants and oxides and increase the adhesion of the zinc layer to the substrate.Hot-dip galvanizing: Using the hot-dip galvanizing process, the steel is immersed in a high-temperature zinc liquid to cause the zinc to melt and react with the steel surface to form a continuous and uniform zinc layer. This method can provide a thicker zinc layer and significantly improve the anti-corrosion performance.Electrogalvanizing: For some special requirements, the electrogalvanizing process can be used. The electrogalvanized layer is more uniform and denser, but its thickness is usually thinner, which is suitable for application scenarios requiring higher surface finish and lower thickness.3. Design and manufacturing processComplete sealing structure: The design should ensure that the Closed Galvanized Barrel has a completely sealed structure to prevent the intrusion of external moisture and contaminants. The sealing structure can be achieved by welding, threaded connection or other reliable sealing methods.Thickened zinc layer: The thickness of the zinc layer can be increased in key areas (such as seams, welds, etc.) to provide additional anti-corrosion protection.Edge treatment: Special treatment is performed on the edge of the barrel, such as adding a rubber seal or using a double-layer sealing structure to prevent moisture and gas intrusion.Reinforcement rib design: Reinforcement ribs are designed inside or outside the barrel body to increase the overall strength and rigidity of the barrel and prevent the zinc layer from being damaged due to external forces.4. Subsequent treatmentPassivation treatment: After galvanizing, the zinc layer is passivated to form a protective oxide film to further improve the corrosion resistance of the zinc layer.Coating protection: For extremely corrosive environments, an anti-corrosion coating, such as epoxy resin coating or polyurethane coating, can be applied to the galvanized layer to provide additional protection.Inspection and quality control: During the manufacturing process, strict quality control and inspection are carried out to ensure that the thickness and uniformity of the galvanized layer meet the design requirements. Use non-destructive testing technology (such as X-ray inspection) to detect the quality of welds and sealing parts.5. Practical application and maintenanceAvoid mechanical damage: During use, avoid mechanical damage to the galvanized barrel (such as scratches, collisions, etc.) to prevent the zinc layer from breaking and exposing the substrate.Regular inspection: Regularly check the barrel's sealing and the integrity of the zinc layer, and repair the damaged parts in time.Environmental control: In the use environment, try to control humidity, temperature and pollutants to avoid the corrosive effects of extreme conditions on the barrel.Through the comprehensive efforts in the above aspects, the anti-corrosion ability of Closed Galvanized Barrel can be significantly improved to ensure its long-term and stable use in various harsh environments.
