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Effect of surface finishing of galvanized steel coil
After galvanizing steel coil is finished, it has a great effect on surface quality improvement and performance improvement. There are mainly the following aspects:
1. Improve the surface flatness of the galvanized steel coil. After finishing, the flatness of the galvanized steel coil is improved, the wave shape of the galvanized coil is partially eliminated, and the slag particles or other uneven spots on the surface can be flattened to make the surface of the galvanized steel sheet become Smooth and flat.
2. Adjust the roughness of the surface of the galvanized steel coil. By controlling the roughness of the surface of the work rolls of the finishing machine, the uneven roughness of the surface of the galvanized steel sheet can be unified to a certain range. This improves the paintability of the product and the lubricity during processing.
3. Improve the surface color of the galvanized steel coil. For small zinc flower and zinc-free flower products, the galvanized steel coil can be made to have a more uniform surface with a uniform gloss. For some private enterprises, the use of large zinc flower products as color-coated substrates can make the zinc flower bumps and different glosses formed by the large zinc flower crystals smooth and uniform, which makes the zinc flowers blurred and unfavorable. Cover the zinc flower when painting.
4. Improve the processing performance of galvanized steel coil. By finishing, the yielding platform of the galvanized steel coil can be eliminated or become inconspicuous, and the metal slip line can be prevented from being generated in the subsequent processing.