News
29
2023
-
05
How to inspect aluminum veneer?
Author:
1. The grade, condition, specification, and thickness of the aluminum plate. The grade can be determined through elemental analysis of the material. Hardness can be tested for elasticity. The thickness can be measured with a caliper.
2. Hardness and tensile properties of aluminum plates. There are those in the market who use earth slag aluminum as genuine aluminum material.
3. After cleaning the aluminum plate, oil contamination inspection can be conducted before spraying. Check if there is any oil stains on the aluminum plate and if it affects the spraying quality, especially for aluminum plates that need to be grooved, there is a lot of lubricating oil during the grooving process. The specific method is as follows: contact the surface of the aluminum plate with an alkaline chemical formula and observe its continuity. Continuity indicates cleanliness, and vice versa, indicates insufficient cleanliness.
4. Adhesion between paint and aluminum plate. Check whether the paint is actually applied, adhered to the aluminum plate, or falsely adhered.
The specific method is as follows: boiling water method. Boil the painted aluminum plate in boiling water for 2 hours to see if the paint is bubbling or peeling off. The phenomenon of blistering or detachment indicates that its adhesion has not yet met the requirements.
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