Application of color coated steel plate in acid resistance, alkali resistance, corrosion resistance and coastal areas

Color-coated sheet is a new type of steel plate. It has the advantages of preventing pollution and saving energy, which makes the application of color-coated sheet more and more extensive. So what are the specific applications of color-coated sheet? Let's take a look at the application of color-coated boards.

The color-coated steel plate using Pre-Painted Galvanized Steel Coil as the substrate, in addition to zinc protection, the organic coating on the zinc layer plays a role of covering and isolation, which can prevent the steel plate from rusting, and its service life is longer than that of the galvanized steel plate. According to reports, the coating The service life of steel plate is 50% longer than that of galvanized steel plate. However, in different regions and different parts of use, the service life of color-coated boards with the same amount of galvanization, the same coating, and the same coating thickness will be very different.

For example, in industrial areas or coastal areas, due to the action of sulfur dioxide gas or salt in the air, the corrosion rate is accelerated and the service life is affected. In the rainy season, if the coating is soaked by rainwater for a long time, or the parts where the temperature difference between day and night is too large and easy to condense, will be corroded quickly, and the service life will be reduced. Therefore, in the development and production of color-coated coils, the above problems need to be considered. After many years of testing and use experience, color steel plates. It is found that there is a fluorine bond in the chemical composition, which has the advantages of strong acid resistance and alkali resistance. It can effectively reduce the corrosion of sulfur dioxide gas in the air to the steel plate. Finally, a coating containing fluorine key components is used to coat the hot-dip galvanized or galvanized steel sheet to produce a fluorocarbon color steel sheet. Fluorocarbon color steel plate has been repeatedly used and tested in coastal areas, and it has been shown that it can be used for 15-20 years in coastal areas or in chemical workshops, and within 15-20 years, it can ensure that the surface of the steel plate will not be powdered, unpainted, or tortoise. List.

Buildings or workshops made of color-coated steel plates have a long service life when they are often washed by rainwater, otherwise, they will be affected by the action of sulfur dioxide gas, salt and dust. Therefore, when designing, if the inclination of the roof is greater, it is less likely to accumulate dust and other dirt, and the service life will be longer; for those areas or parts that are not frequently washed by rainwater, they should be washed with water regularly.