At present, spraying equipment plays an important role in the production of various industries, and even plays a key role. Most of the domestic furniture companies still use the manual spraying method to paint, the equipment is simple, the operation is not standardized, and the production process standards, independent innovation ability and independent intellectual property rights are lacking. At the same time, the paint process is the most technically demanding process in production. Its processing quality and efficiency directly affect the quality and productivity of the product. Therefore, the spraying process and equipment optimization are of great significance in product quality performance.
For modern coating equipment lines, it is generally sufficient to meet the requirements of constant temperature, constant humidity and clean air (air dust content <10 mg/m3). However, it is difficult to ensure constant temperature and constant for the relatively simple coating production line. Wet and clean air can make the workpiece of the coating equipment not meet the requirements of the coating equipment, and it is easy for the paint film to produce needle (shrink) holes, orange peel, granules and other paint film defects. In order to avoid pinholes in the paint film and Orange peel, first of all should improve the temperature and humidity in the spray booth, so that the temperature and humidity in the spray booth meet the process requirements; secondly, the viscosity of the paint and the composition of the diluent should be adjusted according to different temperatures and humidity; The temperature of the spray booth is controlled below 35 ° C and the humidity is controlled below 80%.
Analysis of environmental protection status of spraying equipment
In order to effectively control the amount of air dust in the production line of the coating equipment, firstly, the environmental conditions outside the production line should be improved, and the grinding and wiping processes should be separated from the painting process to prevent the dust generated by the grinding from entering the production line spraying room or drying ( Curing the furnace to eliminate the effect of grinding dust on the spray; secondly, the air filter cloth should be replaced on time to ensure that the dust in the air can be effectively removed.
In recent years, with the strict requirements of environmental protection, environmentally-friendly coatings such as water-based coatings, high-solids coatings and powder coatings have been rapidly developed. According to reports, China’s annual output of powder coatings has reached 60,000 tons, second only to the United States, Italy and Germany, ranking fourth in the world. Since the 1980s, China has introduced more than 500 powder coating equipment production lines. According to the current situation, it should be said that the basic level has reached saturation. How to speed up the localization of powder coating equipment has become an urgent issue in China’s coating equipment industry.