As we all know, color steel plate is one of the building materials used in many houses. Next, steel structure color plate manufacturers will share the production process of color steel plate.
Color steel plate (also known as: color plate, color coated steel plate) is based on cold-rolled steel sheet and galvanized steel plate, after surface pretreatment (degreasing, cleaning, chemical conversion treatment), and coating (roller coating) in a continuous method method), a product made by baking and cooling.
The coating structure of the color steel sheet includes two coatings and one drying, two coatings and two dryings, etc., and the maintenance-free service life can be 10-30 years depending on the ambient atmosphere.
The main production process of the common two-coating and two-baking continuous color coating unit process is: uncoiler——-sewing machine——pressure roller——stretching machine— – Uncoiling looper —– Alkaline washing and degreasing —– Cleaning —– Drying —– Passivation —– Drying —– Initial Coating——-Initial Coating Drying——Finish Coating——Finish Coating——Drying of Top Coat——Air Cooling——Rewinding Set —– winder —– (the lower roll is packaged and put into storage).
Color-coated steel plate is a product made of cold-rolled steel sheet, electro-galvanized steel sheet, hot-dip galvanized steel sheet or galvanized steel plate, after surface degreasing, phosphating, chromate treatment, coating with organic paint and baking . The commonly used coating for color-coated steel sheets is polyester, followed by silicone resin (PSS), fluororesin (PVDF), etc. The coating structure is divided into two-coating and one-baking and two-coating and two-baking. -25μ, 8-10μ on the back. The commonly cited standards for color-coated steel sheets are American ASTMA527 (galvanized), ASTMAT92 (galvanized), Japanese JISG3302, European EN/0142, and Korean KSD3506.
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