How does the color difference of aluminum veneer appear?

　　Mingtan Aluminum veneer manufacturer today to give you an analysis of the color difference of aluminum veneer is how to appear:

　　1, in aluminum veneer processing, mainly divided into two major stages: aluminum sheet metal processing and paint surface spraying. Sheet metal processing stage is mainly focused on the processing of aluminum veneer size accuracy and aluminum modeling, while the paint spraying needs to ensure that the corresponding color whether to meet customer requirements. After the sheet metal, there is an important process before spraying, called aluminum veneer pretreatment process, this process has a spray and immersion type two kinds. Principle of the same, are the use of chemicals, diluted on the surface of the oil stains stains play a role in cleaning, but also in the formation of the surface of the aluminum plate, large and small eyes can not see the small holes, improve the adhesion of paint. When the current treatment of the potion soak time is too short, the concentration of the potion is not enough, the surface oil stains and other cleaning is not complete, adhesion is small, there will be a bad adhesion of paint, or paint and other phenomena.

　　2, because the aluminum veneer surface paint spraying process, is the use of electrostatic spraying this way. So the quality of paint, concentration and mixing paint mixing process must be very careful, otherwise it is easy to appear bad results. Different batches of paint may be slightly different, even if the same batch of paint primer topcoat viscosity and dryness and humidity of the different results will occur, should be avoided at all costs.

　　3, paint used for a long time, solvent volatilization, paint precipitation, so that the paint appears uneven, there will be similar results of color difference.

　　4, climatic reasons, seasonal changes, resulting in changes in the parameters of the top coat. The stability of the temperature of the oven, for the stability of the aluminum veneer surface paint is crucial, constant temperature is the first element. Uneven temperature in the oven, resulting in changes in curing temperature and time.

　　5, spraying machines and equipment, such as paint oil valve problems, conveyor chain speed changes, will affect the uniformity of the paint primer topcoat and thickness. Even the same spray gun gunner, there will be changes in the thickness of spraying. Spraying the thickness of different shades, the color will appear local and local differences.

　　Carved aluminum veneer manufacturer reminds you: aluminum veneer spraying process is the most critical process in the production of aluminum veneer, a slight error, there will be a color difference and paint phenomenon, manufacturers must be treated with caution, strictly adhere to the production of the last process, beware of giving up, do not let a piece of substandard products into the market.