What are the reasons for the surface damage of the aluminum shell? Nowadays, aluminum casings are widely used in industrial production. When we process aluminum casings, surface damage is a common phenomenon in production and processing. However, if we do not fundamentally solve it, we need to find the root cause. Surface damage has a significant impact on the quality of finished products in the later stage. What are the reasons for the surface damage of aluminum shells?
1. There are debris on the mold cavity or work strip, and the hardness of the mold work strip is low, which causes the surface of the work strip to be injured and scratched during extrusion, resulting in profiles being scratched;
2. There are exposed metal or graphite strips with hard inclusions on the discharge track or bed, which cause scratches on the surface of the profile when in contact with it;
3. When the fork rod is used to deliver the profile from the discharge track to the bed, the profile is damaged due to excessive speed.
4. There are impurities attached to the surface of the ingot or segregation of the ingot components. When there are a large number of segregation floats on the surface of the ingot and the ingot has not been homogenized or the homogenization treatment effect is not good, there is a certain amount of hard metal particles inside the ingot. During the extrusion process, when the metal flows through the working strip, these segregation floats or hard metal particles attach to the surface of the working strip or cause damage to the working strip, ultimately causing scratches on the surface of the profile;
What are the reasons for the surface damage of the aluminum casing mentioned above? That's all for the introduction. When using aluminum casing for machine manufacturing, it is important to pay attention to these factors, otherwise it may damage the aluminum casing and delay the production of the machine, avoiding greater losses.