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The aluminum extrusion process is an important part of the production process. It is not only related to the formation, structure and properties of the oxide film, but also affects the quality of the sealing.
Experiments show that the surface quality of the aluminum profile after oxidation and coloring is determined not only by the quality of the oxidation process itself, but also by the surface quality of the profile when extruded, and is more prominent if it is not polished.
If the surface of the aluminum profile is smooth and flat, the color is bright, and the formed oxide film has better effect. The texture is uniform, the continuous performance is good, and the film pores are evenly distributed, and the pore type is qualified. The oxide film is physical or chemical. Well, help the back sealing process.
Aluminum extrusion profile
If the surface quality of the aluminum profile is not good, it will not only affect its own beauty, but also affect the coloring and sealing of the oxide film. If the defect is serious, the product can be directly scrapped, causing economic losses to the enterprise. In order to ensure the smooth operation of the oxide film sealing process, and to produce high-quality and high-standard aluminum profile products, the following points should be noted:
1. During the oxidative loading process, the worker should conduct a comprehensive inspection of the surface of the oxidized material. Once the surface is found to have any problems, it should be quickly picked out. The source is to eliminate the defective product because the surface quality of the extruded profile is oxidized. The quality of the membrane plays a decisive role.
2. In the process of oxidation production, the oxidation temperature and oxidation current must be strictly controlled. In particular, the oxidation temperature should be controlled below 24 °C, and the quality of the water wash should be paid attention to, and impurities in the sealing groove should not be allowed to enter.
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3. The sealing groove should be managed by a special operator, strictly control the concentration of nickel ions and fluoride ions, and the temperature of the bath, so that the concentration of nickel ions and fluoride ions and the temperature of the bath are within the specified range. The staff must also strictly supervise the preparation of the bath. If the value is not correct, it should be adjusted in time to avoid affecting production.
4. In order to make the data more accurate, the aluminum profile should be tested for sealing for 12 hours.
Only by fully grasping the surface quality of the extruded aluminum profile can the sealing quality be ensured, thus producing a higher quality aluminum profile product.
