Aluminum profile surface damage is typically caused by various factors related to the raw materials, mold conditions, and handling during the extrusion and post-extrusion processes. One of the main causes is the presence of impurities or segregation within the ingot. If the ingot has not been properly homogenized, hard metal particles or segregated precipitates can remain on its surface. During the extrusion process, these particles may come into contact with the working belt, causing scratches or marks on the final product.
Another common issue arises from debris in the mold cavity or on the working belt. If the mold's working belt has low hardness, it may become damaged during extrusion, leading to surface imperfections on the aluminum profiles. Additionally, hard inclusions such as exposed metal or graphite bars in the discharge track or oscillating plate can cause scratches when they come into contact with the profiles.
Improper handling during the transfer of profiles from the discharge rail to the swing bed can also lead to surface damage. For instance, if the fork bar moves too quickly, it might cause the profile to get damaged. Similarly, manually dragging the profiles within the swing bed can result in scratches due to direct contact with rough surfaces.
During transportation, friction or pressure between profiles can cause further damage. To address these issues, several preventive measures can be taken. First, improving the quality control of the ingots is essential to minimize the presence of impurities and segregation. Second, enhancing the maintenance and nitriding process of molds ensures that the working belts remain durable and resistant to wear.
Using soft felt or protective materials to separate the profiles from auxiliary tools can help reduce direct contact and prevent surface damage. In production, careful handling is crucial—avoiding unnecessary dragging or twisting of the profiles can significantly improve surface quality. Lastly, organizing the profiles properly in the material box helps avoid mutual friction and potential damage during storage and transport. Ar Coating Solar Glass,Ar Glass,Low Iron Solar Panel Glass,Ar Coating Tempered Solar Glass SHANDONG TOP LEADER GLASS CO.,LTD , https://www.topleaderglass.com