Life of color coated rolls affecting Factors
|5.5.2019||Posted by juniperqq under Advertising & Marketing|
The service life of color coated coils is related to what factors.
The choice of high quality prepainted color galvanized coil mainly refers to the choice of mechanical properties, substrate type and coating weight, frontcourt properties and reverse coating properties. The corrosive properties, service life, durability, processing method and degree of deformation of the use and use environment are important factors to consider when selecting materials. In actual production, the mechanical properties of the substrate are usually replaced by the mechanical properties of the substrate, and the color coating process may cause changes in the mechanical properties of the substrate. In addition, mechanical properties may also vary with increasing storage time. These will increase the possibility of the Rydes belt or crease when the painted plate is formed, which should be noted.
Due to the different uses and environmental conditions of prepainted color galvanized coils, there are many factors affecting their service life. According to the function of use, the service life of color coated coils can be divided into the following types:
1. The service life of the coating renovation refers to the occurrence of most delamination and rust spots on the surface of the North China color coated coil, which causes the substrate to be further corroded.
2. The ultimate service life, refers to the prepainted color galvanized coil without renovation for a long time, until there is serious corrosion, can no longer use the time.
3. Decorative service life refers to the surface of the North China color coated coil surface subjective fading, chalking, cracking, partial peeling of the coating and other defects. It affects the image and aesthetics of the building, but it has not yet reached the extent that the coated piece loses its protective effect.