Why Are There Scratches on Surface of Aluminium Extrusion Profile
Updated: 7 Jun 2021
Many there are scratches on the surface of industrial aluminium extrusion profile. How to prevent extruded aluminium frame scratches? SHENGHAI summarized six reasons.
1. There is dirt on aluminum ingot surface
For example, there are dirt and ingot shrinkage on the surface of aluminum ingot, or there are hard metal particles in the ingot. When the metal material flows through working belt during the extrusion process, this shrinkage and floatation or hard metal material particles adhere to the surface of working belt or cause damage to working belt. This will damage the surface of the industrial profile;
2. Placement rate
When the fork rod sends extruded aluminium channel from the discharge rail to the swing bed, extrusion profile will be scratched due to the excessive speed;
3. Die extrusion
There are sundries on the mold cavity or working belt, and low hardness of mold working belt. So that the surface of the working belt is injured during extrusion and scratches industrial aluminium profile;
4. Human drag
Dragging industrial aluminum profiles by the human on the side of the swing bed will cause scratches on the surface;
5. Dirty countertop
There is bare metal on the discharge track or swing bed or hard inclusions in the graphite strips. When it comes into contact with industrial aluminum profile, it will scratch surface of aluminum profile;
6. The whole process of delivery
During the whole process of transportation, industrial extruded aluminium profiles rub or squeeze each other to cause damage.
Six reasons are summarized by SHENGHAI. About why there are scratches on the surface of industrial aluminum profiles. I believe that aluminum profile manufacture will pay more attention to these details during the production process, thereby improving production efficiency.
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