Surface spraying skills of A588 weathering steel plate

A588 weathering steel plate is a low alloy steel plate between ordinary steel and stainless steel. It has good corrosion resistance and can be bent and formed in a wide range. A588 weather-resistant steel plate is widely used in bridges, railway vehicles, transmission towers, chemical tanks and other steel structures due to its excellent weather resistance and self-protection of the steel surface.

The surface spraying of A588 weathering steel plate is a very important process. The surface of A588 weathering steel plate needs to be properly pre-treated before spraying. When pre-treating the frosted surface of A588 weather-resistant steel plate, attention should be paid to the pre-treatment process, not only to remove rust and oil stains, but also to form a certain adhesion between the paint and the surface of the A588 weather-resistant steel plate. In this way, the effect of spraying on the surface of A588 weathering steel plate can be better played.

The spraying method used here is air spraying. The air spraying gun is composed of several parts, such as air cap, spray nozzle and needle valve. During the surface spraying of A588 weathering steel plate, the paint spray pressure of the air spraying gun, the type of spray nozzle, the fluid pressure at the nozzle, the air flow coefficient, the distance between the nozzle and the sprayed substrate and the spraying direction should be adjusted according to different spraying technologies. Therefore, spray guns of different specifications are selected for spraying different types of paints for different surface spraying projects.

Before air spraying A588 weathering steel plate, it is necessary to check whether there is enough atomization pressure, spraying volume, etc., so that the paint particles can be evenly distributed on the A588 weathering steel plate surface, forming a uniform film. In the production process, sufficient cleaning should be paid to the surface of A588 weathering steel plate. After the surface of A588 weathering steel plate is cleaned, it needs to be tested for moisture. If it is found that the surface of A588 weathering steel plate is wet or rushing, air spraying should be suspended until all moisture has evaporated.

When air spraying A588 weather-resistant steel plate, pay attention to necessary protective measures, pay attention to dust particles and other foreign matter floating in the air, spraying should be carried out in a well-ventilated environment, the drying room should be heated according to requirements, and the temperature should be controlled. After the A588 weather-resistant steel plate is sprayed, it should be checked in time whether the surface meets the requirements of surface protection measures. The specific amount of paint and baking can be adjusted according to the construction environment to ensure the spraying effect on the surface of the A588 weathering steel plate.