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Views: 17 Author: Site Editor Publish Time: 2021-11-08 Origin: Site
Spraying equipment, working environment, spraying management, coating process and materials are directly related to the production efficiency of the spraying production line. In this process, the process layout of the spraying equipment has an important influence on the use of the coating line. Next, I will introduce you to the site requirements and precautions of the spraying production line. Welcome to read!
Site requirements for spraying production line:
1. The channel width of products and sundries shall not be less than 1m, and shall not be stacked on the pedestrian channel around the spraying production line.
2. A protective net should be laid under the suspension line of the assembly line of the painting equipment to prevent objects from falling.
3. Excess paint and waste paint on the spraying production line should be isolated and stacked in a dedicated paint warehouse.
4. The spraying production line should try to avoid using toxic or irritating paint or paint. Paint or paint should be placed in a separate room away from fire sources, and fire-fighting equipment must be provided.
5. The painting workshop should avoid wind as much as possible, and can add automatic fire doors, fire and smoke baffles, water curtains and other facilities to eliminate wind through the hall.
6. The spraying production line operator needs to be familiar with the operating knowledge of the spraying production line. Coating equipment should be installed with overpasses with protective railings and stairs, and the factory floor and overpass passages must be laid with non-slip ground.
Precautions for spraying production line:
1. The spraying production line should pay attention to the installation and suspension of the coated articles. Design the installation method of hangers and objects in advance on the spraying production line to ensure that the workpiece is in a better position during dipping. The plane of the coating should be close to vertical, and the other planes should be at an angle of 10°-40° with the horizontal to make the sprayed surface of the remaining paint smooth.
2. When spraying on the spraying production line, in order to prevent the solvent from spreading in the workshop and dust falling into the paint tank, the paint tank should be protected.
3. After the large items are dipped and coated on the spraying production line, they should be sent to the drying room after the solvent is basically volatilized.
4. When spraying, pay attention to the determination of the viscosity of the paint. The viscosity should be measured 1-2 times per shift. If the viscosity increases by more than 10% of the original viscosity, the solvent should be refilled in time. When adding solvent, stop dip coating. After stirring evenly, measure the viscosity, and then continue to work.
5. The thickness of the paint film mainly depends on the lifting speed of the object on the spraying production line and the viscosity of the paint solution. After the spraying production line controls the viscosity of the paint according to the above requirements, experiments should be carried out according to the speed of the paint film about 30um and different equipment to determine the appropriate lifting speed. Evenly increase the speed of the coated object. The lifting speed is fast and the paint film is thin; the lifting speed is slow and the paint film thickness is uneven.
Sixth, when dipping in the spraying production line, sometimes it will cause coating. The thickness of the lower paint film is different, especially the lower edge of the coating. In order to improve the decorativeness of the coating, when dipping in small batches, you can manually remove the excess accumulated paint drops with a brush, or you can use centrifugal force or electrostatic attraction equipment to remove.
7. When dipping wood products in the spraying production line, pay attention to the time not to be too long, so as to avoid the wood from inhaling too much paint, causing slow drying and waste.
8. Strengthen ventilation equipment to prevent solvent vapor hazards; pay attention to the arrangement of fire prevention measures, and regularly check the spraying production line.
