Mechanical processing:
The surface roughness and smoothness of aluminum bars are mainly improved through physical methods such as grinding and polishing.
It can effectively remove defects such as burrs and scratches on the surface of aluminum bars, improving their appearance quality.
It can also provide a better foundation for subsequent surface treatment work, such as spraying, electroplating, etc.
Chemical treatment:
Mainly by using specific chemical agents to clean and passivate the surface of aluminum rods.
It can remove oil stains, oxides, and other impurities from the surface of aluminum rods, improving their cleanliness and corrosion resistance.
During the processing, it is necessary to strictly control the concentration of the medication and the processing time to ensure the effectiveness of the treatment.
Anodizing treatment:
A commonly used surface treatment method for aluminum rods involves applying direct current to an electrolytic solution to form a hard oxide film on the surface of the aluminum rod.
This oxide film not only has extremely high hardness and wear resistance, but also effectively prevents further oxidation of the aluminum rod.
It can significantly improve the corrosion resistance and service life of aluminum bars.
Sandblasting treatment:
The process of cleaning and roughening the surface of aluminum bars using the impact of high-speed sand flow.
Accelerate sand particles (such as quartz sand, corundum sand, etc.) by compressing air and then spray them onto the surface of the aluminum rod.
It can achieve a certain degree of cleanliness and roughness on the surface of aluminum rods, improve their mechanical properties, enhance their fatigue resistance, and increase their adhesion with coatings.