The oxide film has a great impact on the quality of aluminum plates. The oxide film refers to the thickness, pore rate and transparency of the aluminum plate in the production process. The thickness of the membrane layer of the aluminum plate is maintained above 10um, and the porous and transparency is sufficient, so as to obtain better dyeing quality.
1. Dyeing temperature
The dyeing process of aluminum plates is divided into cold and thermal dye. For a long time with cold dyeing, it is easy to master the color uniformity in the middle. The heat staining time is short, but the color is difficult to control during the dyeing process. The temperature of thermal staining is usually 10-60 ° C. If the temperature is too high during the dyeing process, it will reduce the adsorption of dyeing, and it will easily cause frost on the surface of the aluminum plate.
2. The impact of the raw materials of aluminum plate parts
In the process of production, high -pure aluminum, aluminum -magnesium, aluminum -manganese alloy alloys are performed. Among them, the dyeing function is the best and can be dyed into various colors. For silicon or copper heavy plates, it can only be dyed in dark black, which is a monotonous color.
3. Dye concentration
The concentration of aluminum plate has a certain relationship with dyeing. If the aluminum plate is dyed light, the concentration can be reduced a little, and the dyeing concentration can be higher.
Generally produced aluminum plates with lighter colors of 0.1-0.39g/L, lighter ones 1g/L, 3-5g/L, and thicker are 10-15g/L. If the required dyeing concentration is required High, it will cause uneven or floating colors, and it is easy to produce floating colors during cleaning and closing.
In order to strengthen the adsorption performance of the dyeing, the low concentration shades can be used for extended dyeing, so that the dyes can be evenly infiltrated into the oxide film, making the dyeing more coordinated and firm.
