Aluminum shell quality identification and inspection

If a professional enterprise conducts quality inspection, it needs to do these four points:

1. Identification check: Whether the product standard code and production license number are marked on the aluminum profile and packaging.

2. Surface quality: In addition to the surface of the aluminum profile should be clean, no defects such as cracks, peeling, corrosion and bubbles are allowed, and no defects such as corrosion spots, electric burns, black spots, and oxide film shedding are allowed.

3. Oxide film thickness: The oxide film of the aluminum profile is formed during anodization, which has protective and decorative functions and can be detected by an eddy current thickness gauge.

4. Sealing quality: There are many voids on the surface of the aluminum profile after anodization. If it is not sealed or the sealing is not good, the corrosion resistance of the aluminum profile will be reduced. The commonly used methods for quality inspection of sealing include acid leaching, admittance and phosphobutyric acid.