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Causes Of Scratching The Surface Of Aluminum Profiles

Oct. 25, 2018

Let us understand the causes of scratches and abrasions on the surface of aluminum profiles!

1. Impurities attached to the surface of the ingot.

2. Segregation of ingot composition, a large amount of segregation float on the surface.

3. When the ingot is not homogenized or homogenized, the ingot contains a certain amount of hard metal particles. Metal flows through the work belt during extrusion.

4. There is debris in the mold cavity or working belt, and the hardness of the working belt of the mold is low so that the surface of the working belt is injured during the extrusion and the profile is scratched.

5. There are bare metal or graphite strips in the discharge track or pendulum. Scratching the surface of the profile when it comes into contact with the profile.

6. When the fork rod is sent from the discharge rail to the swinging bed, the profile is scratched due to the excessive speed.

7. Artificially dragging the profile on the bed to cause scratches.

8. The friction or extrusion between the profiles during transportation causes damage.

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