How to eliminate scratches on the surface of aluminum profiles

The surface of aluminum ingots is attached to the debris, without homogenization or Uniformization is not good when the aluminum ingots in a certain number of hard metal particles. During the extrusion process, when the metal flows through the working belt, these partially occurring or hard metal particles adhere to the surface of the work belt or cause damage to the work belt, causing scratches on the profile surface.

Mold cavity or work belt has debris, mold work belt hardness is low, so that the surface of the work belt in the squeeze injury and scratch profile. There are hard inclusions in exposed metal or graphite strips on the discharge track or on the machine bed, which scratch the profile surface when it comes into contact with the profile.

How to eliminate scratches on the surface of aluminum profiles?

1. Physical method is mechanical grinding, specific sandblasting, drawing, etc. , generally for deep scratches using this method.

2. Chemical methods generally use chemical reagents to polish, simply speaking, the use of chemical reagents to the aluminum surface corrosion off a layer, scratches due to sharp edges, corrosion speed, lighter scratches in the chemical polishing can be completely eliminated, chemically polished material surface bright, good-looking.