In the extrusion production of aluminum-titanium alloy profiles, common defects are relatively intuitive, such as bending, twisting, deformation, slag inclusion, etc. The defects of the adsorbed particles are more difficult to find without careful observation or touching. The harm is: in the production process of electrophoresis and spraying profiles, it is difficult to remove them, which affects the appearance of the profiles and causes waste products. Therefore, it is necessary to constantly observe and analyze in the practice of extrusion production, summarize its causes, and take timely measures to reduce or eliminate the occurrence of such defects.
The performance of adsorbed particles and the effect on the quality of the products. There are more and more surface treatment methods for aluminum-titanium alloy profiles. In addition to general oxidized profiles, aluminum-titanium alloy profiles, aluminum-titanium alloy profiles, electrophoretic profiles, spray profiles, fluorocarbon spray profiles Wood-grained paint profiles have appeared one after another, with various patterns. The defects of the adsorbed particles have little effect on the general oxidized materials, but have a greater influence on other treatment forms, mainly hindering the appearance of these profiles. In extrusion production, the extruded profile absorbs particles; after careful observation or sliding on the profile surface by hand, it will be found. In the sawing and basketing process, most of the small particles can be removed by blowing or wiping with wind. However, some of them are still adsorbed on the profile surface due to static electricity. After aging treatment, these particles adhere more tightly to the profile surface. In the pretreatment process of the profile surface, some can be removed due to the influence of the concentration of the bath liquid, but small pits are formed on the surface of the profile, and some of the aluminum-titanium alloy profiles cannot be removed, then a protrusion is formed. This problem often occurs in the production of electrophoresis and spray profiles.
In addition to extrusion processing, the coating process has an important impact on the quality of aluminum titanium alloy profiles! When the aluminum-titanium alloy profile is cooled, the thickness of the paint film is appropriate. When the paint film is too thick, the cooling speed is slow, the material cooling degree is affected, the crushing temperature is too high, which affects the subsequent fine crushing effect and product quality, and the paint film is too When it is thin, although the cooling speed is fast but the production speed is slow, it will affect the production capacity of the equipment, and even the overflow phenomenon of the material on the tablet will affect the production. Considering the cooling of the material, the temperature of the cooling water should be low, and the contact area between the cooling and the material should be large, but when the temperature is too low, condensation will easily occur on the tablet, increasing the water content of the aluminum-titanium alloy profile powder coating, affecting the quality of the product . The tablet cooling method is divided into two types: cooling belt type and cooling type. The cooling belt type is divided into air cooling type and water cooling type. Which method should be adopted by the user? These problems should be based on the production volume of industrial travel materials and local climate conditions and the cost. The situation of the factory cooling water bar determines the choice.
When cooling with cooling water, it is best to use chilled water in consideration of saving water and ensuring the temperature of water in summer; if it is tap water, it is best to prepare a storage tank for recycling to save resources. In the summer when the temperature of the tap water is high, it is necessary to use cooling towers and other cooling measures to ensure the cooling effect of the cooling water. The thickness and size of the broken paint will affect the cooling effect of the material and the production efficiency and output in the subsequent fine crushing process. It is better to choose the appropriate crushing particle size. In order to prevent the joining of aluminum-titanium alloy profile powder coating products after fine grinding and improve the production efficiency of fine grinding, the temperature of the cooling and breaking material before fine powder should be as low as possible. Alloy profile powder coating products are based on disunity.