Painting is an important process in aluminum plate manufacturing. The quality of painting directly affects the decorative effect of aluminum plate. There are four main factors that cause the quality of aluminum plate painting. Let's let aluminum plate manufacturers take you to know about this aspect. Friends who are interested in this aspect must not miss it.
1. Environment
It is required that the interior of the coating room be clean, dust - proof, insect-proof and ventilated to ensure that the surface quality of aluminum plate coating is not polluted. At the same time, the process conditions will be changed in time due to temperature changes.
2. Raw materials
Coatings and aluminum plates are the most influential factors in the coating process. Due to color difference between batches of coatings, insufficient fineness of coatings and low coating rate, poor coordination of coatings and solvents, delamination, etc. will directly affect the coating effect and produce defects.' Irregularity of aluminum coil substrate, uneven film thickness, poor edge flexibility, etc. will also directly affect the product quality and overall use. Therefore, strict control should be exercised when selecting raw materials.
3. Equipment
The coating line requires the coating equipment to be in good condition, the coating equipment to operate smoothly, and there must be no horizontal and vertical jitter, and the coating roller must be ground finely. The lateral runout of all rollers of the coating machine must be controlled within the allowable range, otherwise the coating surface quality will be seriously affected.
4. Process
The coating process is closely related to the quality of the coating. It is required to control the relative linear speed ratio of coating roller, paint lifting roller, metering roller and substrate within a certain range. A certain viscosity range should be set for the coating according to different systems and the film thickness of the coating products to ensure smooth coating and promote the improvement of product quality. The curing process of the coating and oven control must be controlled as required and shall not be changed arbitrarily, otherwise the color difference and performance of the coating products will be seriously affected.
The above content is the introduction of aluminum plate manufacturers on the advantages and disadvantages of aluminum plate coating. I believe it is helpful to understand this aspect and the whole aluminum plate.
