The process used in the production of 6063 aluminum rods is the same, but the quality effects obtained are also different. Today, the editor mainly wants to share with you whether chemical polishing or electrolytic polishing is used for aluminum rods? Which one is better? Our company mostly uses electrolytic polishing during production, because electrolytic polishing has the following advantages:
1. The equipment is simple and the process parameters are easy to control. It can replace mechanical polishing, or under certain special requirements, continue mechanical polishing before chemical polishing or electrolytic polishing. The surface brightness is higher, and it is easier to use automation than mechanical polishing. planning production;
2. It has wide requirements on profile structure and size range, and can handle industrial materials with high surface requirements used as precision parts, profiles with large or extremely small external dimensions and complex shapes that cannot be processed by mechanical polishing;
3. The surface of the aluminum profile after electrolytic polishing is clearer and cleaner, without residual mechanical polishing dust, and has better corrosion resistance;
4. The electrolytic polished surface has a higher mirror reflectivity and a better metallic feel. Electrolytic polishing, also known as electrochemical polishing, uses aluminum as the anode and is immersed in a prepared electrolyte solution, and a corrosion-resistant material with small protrusions and good performance (such as stainless steel) is used as the cathode. Based on the principle of electrolytic tip discharge, After electrification, the small protruding parts on the surface of the aluminum profile are preferentially dissolved. At the same time, the dissolved product and the electrolyte on the surface form a high-resistance viscous liquid film layer. The liquid film layer on the small protruding parts is thinner, and its resistance is smaller, and then Maintain preferential dissolution. At the same time, the liquid film layer in the concave parts is thicker, the resistance increases, and the dissolution rate is relatively slow. After a short period of electrolysis treatment, the protruding parts are dissolved and leveled to the position of the concave parts, making the surface of the aluminum material rough. The process of reducing the temperature to smooth and bright.
