Four methods to distinguish the quality of electronic cigarette aluminum casing

Electronic cigarette aluminum shells are very common, so how can we distinguish the quality of aluminum shells in daily applications? Today, the editor will introduce you to four methods to distinguish the quality of the aluminum casing of electronic cigarettes.

1. Identification inspection

Is there a product standard code and production license number marked on the aluminum profile and packaging.

2. Surface quality

The surface of aluminum profiles should be clean and free from defects such as cracks, peeling, corrosion, and bubbles, as well as defects such as corrosion spots, electric burns, black spots, and oxide film detachment.

3. Thickness of oxide film

The oxide film of aluminum profiles is formed during anodic oxidation, which has protective and decorative effects and can be tested using an eddy current thickness gauge.

4. Sealing quality

After anodizing, there are many gaps on the surface of aluminum profiles. If not sealed or poorly sealed, it will reduce the corrosion resistance of aluminum profiles. The commonly used methods for checking the quality of sealing holes include acid leaching method, admittance method, and phosphotyrosine method.

During on-site inspection, the acid immersion method is generally used, which involves scrubbing the surface of aluminum profiles with acetone to remove oil and dust. A volume ratio of 50% nitric acid is dropped onto the surface and gently scrubbed. After 1 minute, the nitric acid is washed off with clean water, and then dried. A drop of medical purple medicine water is dropped onto the surface. After 1 minute, the purple medicine water is wiped off and the surface is thoroughly cleaned. Carefully observe the traces left, and aluminum profiles with poor sealing will leave obvious marks, The heavier the trace, the worse the sealing quality.