Toothed steel grating is not only beautiful lubrication but also hot dip galvanized outside

Toothed steel grating has large drainage and high drainage quality: leakage area is 83.3%, more than twice that of cast iron. The standardized pressure welded steel plate has the advantages of beautiful appearance and convenient installation. The size and scale of objects passed or lost on special occasions can also meet stringent requirements. Serrated steel lattice is a pressure welded steel plate with a bearing capacity of less than 25 mm. In addition to the standard pressure welded steel mesh, it also has a beautiful appearance. The specifications and models of steel grids are the same as those of ordinary flat steel. The difference is that the teeth on the side of flat steel are not uniform, which is mainly manifested in the skid resistance. Serrated steel lattice has outstanding anti-skid effect. Toothed steel lattice plate is not only beautiful lubrication, but also hot dip galvanized outside. Silver enhances the modern style and can be used in a variety of indoor and outdoor venues. Effect of chemical composition of hot-dip galvanized steel lattice substrate on adhesion of zinc layer: hot-dip galvanized steel lattice substrate generally uses low carbon flat steel as the substrate, its steel base W is higher. It has been proved that the high W of steel base will cause the intense thickening of Fe-Zn, alloy layer phase to form gray and white coating, which will make the adhesion of galvanized layer worse. In addition, the mechanism of C influence is that the steel base participates in a severe reaction, resulting in thickening of Fe-zn alloy layer and poor adhesion of zinc layer. According to the meshing principle, increasing the surface roughness of the round plate can improve the adhesion of zinc layer, but in fact, because of the roughness of the substrate surface of the steel lattice plate, it also creates favorable conditions for rolling oil, grease and iron powder residue. It is not conducive to improving the adhesion of zinc layer, and even has the tendency to deteriorate. The galvanized time of hot-dip galvanized steel lattice plate should be understood as that after the matrix of the steel lattice plate enters the zinc liquid and leaves the liquid level, the coating cools to the point that Fe and zn atoms cannot be diffused over long distances. In the process of galvanizing, in order to prevent further diffusion reaction of Fe-Zn in the coating and ensure the zinc difference and uniformity of the Fe2Al5 intermediate layer, the coating should be cooled as soon as possible so that Fe and zn atoms lose their diffusion ability as soon as possible.