For anodizing of aluminum, aluminum-plastic, and aluminum honeycomb panels, attention should be paid to the uniformity of the thickness of the anodized film, the uniformity of the color, and the reproducibility. To ensure the thickness uniformity, color uniformity and reproducibility of the anodized film, the chemical composition of the aluminum alloy and the production process of the anodizing must be strictly controlled.
Strictly control the anodizing current density. With the increase of the current density, the color of the oxide film gradually becomes darker, and the thickness of the film layer becomes thicker and then thinner. The reason is that the current density increases, the porosity of the aluminum honeycomb panel specification film increases, and it is easy to color; the current density decreases Small, the growth rate of the film is reduced, and the film layer is dense, so as the current density increases, the color of the oxide film gradually becomes darker. The aluminum foil adopts roll forming technology to complete the forming of the front and back skins; the honeycomb aluminum skin has small holes to allow the gas in the board to flow freely; the sliding mounting buckle system will not cause structural deformation during thermal expansion and contraction, so it can ensure that Extremely high flatness. The inner layer is a specially made hexagonal honeycomb. Because it has a honeycomb shape, it is called 'aluminum honeycomb panel'.
